2014-01-02 22:31:24 +01:00
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# HG changeset patch
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2014-03-18 20:44:32 +01:00
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# Parent 16cf73a02802e3b4a77ccd77794346441638e2a7
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2014-01-02 22:31:24 +01:00
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# User Ulrich Weigand <uweigand@de.ibm.com>
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2014-03-18 20:44:32 +01:00
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Bug 976648 - powerpc64le-linux support - libffi backport
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2014-01-02 22:31:24 +01:00
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2014-03-18 20:44:32 +01:00
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diff --git a/js/src/ctypes/libffi/aclocal.m4 b/js/src/ctypes/libffi/aclocal.m4
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--- a/js/src/ctypes/libffi/aclocal.m4
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+++ b/js/src/ctypes/libffi/aclocal.m4
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@@ -1277,31 +1277,34 @@ ia64-*-hpux*)
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LD="${LD-ld} -64"
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;;
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esac
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fi
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fi
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rm -rf conftest*
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;;
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-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
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+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
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s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
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# Find out which ABI we are using.
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echo 'int i;' > conftest.$ac_ext
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if AC_TRY_EVAL(ac_compile); then
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case `/usr/bin/file conftest.o` in
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*32-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_i386_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_i386"
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;;
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- ppc64-*linux*|powerpc64-*linux*)
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+ powerpc64le-*linux*)
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+ LD="${LD-ld} -m elf32lppclinux"
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+ ;;
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+ powerpc64-*linux*)
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LD="${LD-ld} -m elf32ppclinux"
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;;
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s390x-*linux*)
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LD="${LD-ld} -m elf_s390"
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;;
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sparc64-*linux*)
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LD="${LD-ld} -m elf32_sparc"
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;;
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@@ -1310,17 +1313,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
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*64-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_x86_64_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_x86_64"
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;;
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- ppc*-*linux*|powerpc*-*linux*)
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+ powerpcle-*linux*)
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+ LD="${LD-ld} -m elf64lppc"
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+ ;;
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+ powerpc-*linux*)
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LD="${LD-ld} -m elf64ppc"
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;;
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s390*-*linux*|s390*-*tpf*)
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LD="${LD-ld} -m elf64_s390"
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;;
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sparc*-*linux*)
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LD="${LD-ld} -m elf64_sparc"
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;;
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diff --git a/js/src/ctypes/libffi/configure b/js/src/ctypes/libffi/configure
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--- a/js/src/ctypes/libffi/configure
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+++ b/js/src/ctypes/libffi/configure
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@@ -6293,17 +6293,17 @@ ia64-*-hpux*)
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LD="${LD-ld} -64"
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;;
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esac
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fi
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fi
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rm -rf conftest*
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;;
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-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
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+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
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s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
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# Find out which ABI we are using.
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echo 'int i;' > conftest.$ac_ext
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if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; then
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@@ -6311,17 +6311,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
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*32-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_i386_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_i386"
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;;
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- ppc64-*linux*|powerpc64-*linux*)
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+ powerpc64le-*linux*)
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+ LD="${LD-ld} -m elf32lppclinux"
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+ ;;
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+ powerpc64-*linux*)
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LD="${LD-ld} -m elf32ppclinux"
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;;
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s390x-*linux*)
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LD="${LD-ld} -m elf_s390"
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;;
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sparc64-*linux*)
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LD="${LD-ld} -m elf32_sparc"
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;;
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@@ -6330,17 +6333,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
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*64-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_x86_64_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_x86_64"
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;;
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- ppc*-*linux*|powerpc*-*linux*)
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+ powerpcle-*linux*)
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+ LD="${LD-ld} -m elf64lppc"
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+ ;;
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+ powerpc-*linux*)
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LD="${LD-ld} -m elf64ppc"
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;;
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s390*-*linux*|s390*-*tpf*)
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LD="${LD-ld} -m elf64_s390"
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;;
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sparc*-*linux*)
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LD="${LD-ld} -m elf64_sparc"
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;;
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diff --git a/js/src/ctypes/libffi/m4/libtool.m4 b/js/src/ctypes/libffi/m4/libtool.m4
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--- a/js/src/ctypes/libffi/m4/libtool.m4
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+++ b/js/src/ctypes/libffi/m4/libtool.m4
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@@ -1262,31 +1262,34 @@ ia64-*-hpux*)
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LD="${LD-ld} -64"
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;;
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esac
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fi
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fi
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rm -rf conftest*
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;;
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-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
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+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
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s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
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# Find out which ABI we are using.
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echo 'int i;' > conftest.$ac_ext
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if AC_TRY_EVAL(ac_compile); then
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case `/usr/bin/file conftest.o` in
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*32-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_i386_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_i386"
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;;
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- ppc64-*linux*|powerpc64-*linux*)
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+ powerpc64le-*linux*)
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+ LD="${LD-ld} -m elf32lppclinux"
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+ ;;
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+ powerpc64-*linux*)
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LD="${LD-ld} -m elf32ppclinux"
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;;
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s390x-*linux*)
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LD="${LD-ld} -m elf_s390"
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;;
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sparc64-*linux*)
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LD="${LD-ld} -m elf32_sparc"
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;;
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@@ -1295,17 +1298,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
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*64-bit*)
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case $host in
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x86_64-*kfreebsd*-gnu)
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LD="${LD-ld} -m elf_x86_64_fbsd"
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;;
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x86_64-*linux*)
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LD="${LD-ld} -m elf_x86_64"
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;;
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- ppc*-*linux*|powerpc*-*linux*)
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+ powerpcle-*linux*)
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+ LD="${LD-ld} -m elf64lppc"
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+ ;;
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+ powerpc-*linux*)
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LD="${LD-ld} -m elf64ppc"
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;;
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s390*-*linux*|s390*-*tpf*)
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LD="${LD-ld} -m elf64_s390"
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;;
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sparc*-*linux*)
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LD="${LD-ld} -m elf64_sparc"
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;;
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2014-01-02 22:31:24 +01:00
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diff --git a/js/src/ctypes/libffi/src/powerpc/ffi.c b/js/src/ctypes/libffi/src/powerpc/ffi.c
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--- a/js/src/ctypes/libffi/src/powerpc/ffi.c
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+++ b/js/src/ctypes/libffi/src/powerpc/ffi.c
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@@ -1,12 +1,14 @@
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2014-01-02 21:02:50 +01:00
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/* -----------------------------------------------------------------------
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- ffi.c - Copyright (c) 1998 Geoffrey Keating
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- Copyright (C) 2007, 2008 Free Software Foundation, Inc
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- Copyright (C) 2008 Red Hat, Inc
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+ ffi.c - Copyright (C) 2011 Anthony Green
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+ Copyright (C) 2011 Kyle Moffett
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+ Copyright (C) 2008 Red Hat, Inc
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+ Copyright (C) 2007, 2008 Free Software Foundation, Inc
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+ Copyright (c) 1998 Geoffrey Keating
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PowerPC Foreign Function Interface
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2014-01-02 22:31:24 +01:00
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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``Software''), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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@@ -34,42 +36,39 @@
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extern void ffi_closure_SYSV (void);
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extern void FFI_HIDDEN ffi_closure_LINUX64 (void);
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enum {
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2014-01-02 21:02:50 +01:00
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/* The assembly depends on these exact flags. */
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FLAG_RETURNS_SMST = 1 << (31-31), /* Used for FFI_SYSV small structs. */
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FLAG_RETURNS_NOTHING = 1 << (31-30), /* These go in cr7 */
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+#ifndef __NO_FPRS__
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FLAG_RETURNS_FP = 1 << (31-29),
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+#endif
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FLAG_RETURNS_64BITS = 1 << (31-28),
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FLAG_RETURNS_128BITS = 1 << (31-27), /* cr6 */
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- FLAG_SYSV_SMST_R4 = 1 << (31-26), /* use r4 for FFI_SYSV 8 byte
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- structs. */
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- FLAG_SYSV_SMST_R3 = 1 << (31-25), /* use r3 for FFI_SYSV 4 byte
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- structs. */
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- /* Bits (31-24) through (31-19) store shift value for SMST */
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FLAG_ARG_NEEDS_COPY = 1 << (31- 7),
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+ FLAG_ARG_NEEDS_PSAVE = FLAG_ARG_NEEDS_COPY, /* Used by ELFv2 */
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+#ifndef __NO_FPRS__
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FLAG_FP_ARGUMENTS = 1 << (31- 6), /* cr1.eq; specified by ABI */
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+#endif
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FLAG_4_GPR_ARGUMENTS = 1 << (31- 5),
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FLAG_RETVAL_REFERENCE = 1 << (31- 4)
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};
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/* About the SYSV ABI. */
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-unsigned int NUM_GPR_ARG_REGISTERS = 8;
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+#define ASM_NEEDS_REGISTERS 4
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+#define NUM_GPR_ARG_REGISTERS 8
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#ifndef __NO_FPRS__
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-unsigned int NUM_FPR_ARG_REGISTERS = 8;
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-#else
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-unsigned int NUM_FPR_ARG_REGISTERS = 0;
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+# define NUM_FPR_ARG_REGISTERS 8
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#endif
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-enum { ASM_NEEDS_REGISTERS = 4 };
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-
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/* ffi_prep_args_SYSV is called by the assembly routine once stack space
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has been allocated for the function's arguments.
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2014-01-02 22:31:24 +01:00
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The stack layout we want looks like this:
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| Return address from ffi_call_SYSV 4bytes | higher addresses
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|--------------------------------------------|
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| Previous backchain pointer 4 | stack pointer here
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@@ -108,100 +107,119 @@ ffi_prep_args_SYSV (extended_cif *ecif,
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/* 'stacktop' points at the previous backchain pointer. */
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valp stacktop;
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/* 'gpr_base' points at the space for gpr3, and grows upwards as
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we use GPR registers. */
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2014-01-02 21:02:50 +01:00
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valp gpr_base;
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int intarg_count;
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+#ifndef __NO_FPRS__
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/* 'fpr_base' points at the space for fpr1, and grows upwards as
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we use FPR registers. */
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valp fpr_base;
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int fparg_count;
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+#endif
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/* 'copy_space' grows down as we put structures in it. It should
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stay 16-byte aligned. */
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2014-01-02 22:31:24 +01:00
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valp copy_space;
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2014-01-02 21:02:50 +01:00
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/* 'next_arg' grows up as we put parameters in it. */
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valp next_arg;
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- int i, ii MAYBE_UNUSED;
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+ int i;
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ffi_type **ptr;
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+#ifndef __NO_FPRS__
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double double_tmp;
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+#endif
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union {
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void **v;
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char **c;
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2014-01-02 22:31:24 +01:00
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signed char **sc;
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unsigned char **uc;
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signed short **ss;
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unsigned short **us;
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unsigned int **ui;
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long long **ll;
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float **f;
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double **d;
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} p_argv;
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2014-01-02 21:02:50 +01:00
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size_t struct_copy_size;
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unsigned gprvalue;
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- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
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- NUM_FPR_ARG_REGISTERS = 0;
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-
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stacktop.c = (char *) stack + bytes;
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gpr_base.u = stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS;
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intarg_count = 0;
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+#ifndef __NO_FPRS__
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fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS;
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fparg_count = 0;
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copy_space.c = ((flags & FLAG_FP_ARGUMENTS) ? fpr_base.c : gpr_base.c);
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+#else
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+ copy_space.c = gpr_base.c;
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+#endif
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next_arg.u = stack + 2;
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/* Check that everything starts aligned properly. */
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- FFI_ASSERT (((unsigned) (char *) stack & 0xF) == 0);
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|
|
- FFI_ASSERT (((unsigned) copy_space.c & 0xF) == 0);
|
|
|
|
- FFI_ASSERT (((unsigned) stacktop.c & 0xF) == 0);
|
|
|
|
+ FFI_ASSERT (((unsigned long) (char *) stack & 0xF) == 0);
|
|
|
|
+ FFI_ASSERT (((unsigned long) copy_space.c & 0xF) == 0);
|
|
|
|
+ FFI_ASSERT (((unsigned long) stacktop.c & 0xF) == 0);
|
|
|
|
FFI_ASSERT ((bytes & 0xF) == 0);
|
|
|
|
FFI_ASSERT (copy_space.c >= next_arg.c);
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
/* Deal with return values that are actually pass-by-reference. */
|
|
|
|
if (flags & FLAG_RETVAL_REFERENCE)
|
|
|
|
{
|
|
|
|
*gpr_base.u++ = (unsigned long) (char *) ecif->rvalue;
|
|
|
|
intarg_count++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Now for the arguments. */
|
|
|
|
p_argv.v = ecif->avalue;
|
|
|
|
for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
|
2014-01-02 21:02:50 +01:00
|
|
|
i > 0;
|
|
|
|
i--, ptr++, p_argv.v++)
|
|
|
|
{
|
|
|
|
- switch ((*ptr)->type)
|
|
|
|
- {
|
|
|
|
+ unsigned short typenum = (*ptr)->type;
|
|
|
|
+
|
|
|
|
+ /* We may need to handle some values depending on ABI */
|
|
|
|
+ if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT) {
|
|
|
|
+ if (typenum == FFI_TYPE_FLOAT)
|
|
|
|
+ typenum = FFI_TYPE_UINT32;
|
|
|
|
+ if (typenum == FFI_TYPE_DOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT64;
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT128;
|
|
|
|
+ } else if (ecif->cif->abi != FFI_LINUX) {
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_STRUCT;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* Now test the translated value */
|
|
|
|
+ switch (typenum) {
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
/* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
|
|
|
|
- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_float_prep;
|
|
|
|
double_tmp = **p_argv.f;
|
|
|
|
if (fparg_count >= NUM_FPR_ARG_REGISTERS)
|
|
|
|
{
|
2014-01-02 22:31:24 +01:00
|
|
|
*next_arg.f = (float) double_tmp;
|
|
|
|
next_arg.u += 1;
|
|
|
|
intarg_count++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
*fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
|
|
|
break;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
case FFI_TYPE_DOUBLE:
|
|
|
|
/* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
|
|
|
|
- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_double_prep;
|
|
|
|
double_tmp = **p_argv.d;
|
|
|
|
|
|
|
|
if (fparg_count >= NUM_FPR_ARG_REGISTERS)
|
2014-01-02 22:31:24 +01:00
|
|
|
{
|
|
|
|
if (intarg_count >= NUM_GPR_ARG_REGISTERS
|
|
|
|
&& intarg_count % 2 != 0)
|
|
|
|
{
|
|
|
|
intarg_count++;
|
|
|
|
@@ -213,53 +231,16 @@ ffi_prep_args_SYSV (extended_cif *ecif,
|
|
|
|
else
|
|
|
|
*fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
|
|
|
break;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if ((ecif->cif->abi != FFI_LINUX)
|
|
|
|
- && (ecif->cif->abi != FFI_LINUX_SOFT_FLOAT))
|
|
|
|
- goto do_struct;
|
|
|
|
- /* The soft float ABI for long doubles works like this,
|
|
|
|
- a long double is passed in four consecutive gprs if available.
|
|
|
|
- A maximum of 2 long doubles can be passed in gprs.
|
|
|
|
- If we do not have 4 gprs left, the long double is passed on the
|
|
|
|
- stack, 4-byte aligned. */
|
|
|
|
- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- {
|
|
|
|
- unsigned int int_tmp = (*p_argv.ui)[0];
|
|
|
|
- if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3)
|
|
|
|
- {
|
|
|
|
- if (intarg_count < NUM_GPR_ARG_REGISTERS)
|
|
|
|
- intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
|
|
|
|
- *next_arg.u = int_tmp;
|
|
|
|
- next_arg.u++;
|
|
|
|
- for (ii = 1; ii < 4; ii++)
|
|
|
|
- {
|
|
|
|
- int_tmp = (*p_argv.ui)[ii];
|
|
|
|
- *next_arg.u = int_tmp;
|
|
|
|
- next_arg.u++;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- *gpr_base.u++ = int_tmp;
|
|
|
|
- for (ii = 1; ii < 4; ii++)
|
|
|
|
- {
|
|
|
|
- int_tmp = (*p_argv.ui)[ii];
|
|
|
|
- *gpr_base.u++ = int_tmp;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- intarg_count +=4;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
double_tmp = (*p_argv.d)[0];
|
|
|
|
|
|
|
|
if (fparg_count >= NUM_FPR_ARG_REGISTERS - 1)
|
2014-01-02 22:31:24 +01:00
|
|
|
{
|
|
|
|
if (intarg_count >= NUM_GPR_ARG_REGISTERS
|
|
|
|
&& intarg_count % 2 != 0)
|
|
|
|
{
|
|
|
|
intarg_count++;
|
|
|
|
@@ -275,23 +256,50 @@ ffi_prep_args_SYSV (extended_cif *ecif,
|
|
|
|
{
|
|
|
|
*fpr_base.d++ = double_tmp;
|
|
|
|
double_tmp = (*p_argv.d)[1];
|
|
|
|
*fpr_base.d++ = double_tmp;
|
|
|
|
}
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
fparg_count += 2;
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
|
|
|
- }
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
+#endif /* have FPRs */
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * The soft float ABI for long doubles works like this, a long double
|
|
|
|
+ * is passed in four consecutive GPRs if available. A maximum of 2
|
|
|
|
+ * long doubles can be passed in gprs. If we do not have 4 GPRs
|
|
|
|
+ * left, the long double is passed on the stack, 4-byte aligned.
|
|
|
|
+ */
|
|
|
|
+ case FFI_TYPE_UINT128: {
|
|
|
|
+ unsigned int int_tmp = (*p_argv.ui)[0];
|
|
|
|
+ unsigned int ii;
|
|
|
|
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3) {
|
|
|
|
+ if (intarg_count < NUM_GPR_ARG_REGISTERS)
|
|
|
|
+ intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
|
|
|
|
+ *(next_arg.u++) = int_tmp;
|
|
|
|
+ for (ii = 1; ii < 4; ii++) {
|
|
|
|
+ int_tmp = (*p_argv.ui)[ii];
|
|
|
|
+ *(next_arg.u++) = int_tmp;
|
|
|
|
+ }
|
|
|
|
+ } else {
|
|
|
|
+ *(gpr_base.u++) = int_tmp;
|
|
|
|
+ for (ii = 1; ii < 4; ii++) {
|
|
|
|
+ int_tmp = (*p_argv.ui)[ii];
|
|
|
|
+ *(gpr_base.u++) = int_tmp;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ intarg_count += 4;
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
|
|
|
|
case FFI_TYPE_UINT64:
|
|
|
|
case FFI_TYPE_SINT64:
|
|
|
|
- soft_double_prep:
|
|
|
|
if (intarg_count == NUM_GPR_ARG_REGISTERS-1)
|
|
|
|
intarg_count++;
|
|
|
|
if (intarg_count >= NUM_GPR_ARG_REGISTERS)
|
2014-01-02 22:31:24 +01:00
|
|
|
{
|
|
|
|
if (intarg_count % 2 != 0)
|
|
|
|
{
|
|
|
|
intarg_count++;
|
|
|
|
next_arg.u++;
|
|
|
|
@@ -314,19 +322,16 @@ ffi_prep_args_SYSV (extended_cif *ecif,
|
|
|
|
gpr_base.u++;
|
|
|
|
}
|
|
|
|
*gpr_base.ll++ = **p_argv.ll;
|
|
|
|
}
|
|
|
|
intarg_count += 2;
|
2014-01-02 21:02:50 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- do_struct:
|
|
|
|
-#endif
|
|
|
|
struct_copy_size = ((*ptr)->size + 15) & ~0xF;
|
|
|
|
copy_space.c -= struct_copy_size;
|
|
|
|
memcpy (copy_space.c, *p_argv.c, (*ptr)->size);
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
gprvalue = (unsigned long) copy_space.c;
|
|
|
|
|
|
|
|
FFI_ASSERT (copy_space.c > next_arg.c);
|
|
|
|
FFI_ASSERT (flags & FLAG_ARG_NEEDS_COPY);
|
|
|
|
@@ -344,45 +349,91 @@ ffi_prep_args_SYSV (extended_cif *ecif,
|
|
|
|
case FFI_TYPE_SINT16:
|
|
|
|
gprvalue = **p_argv.ss;
|
|
|
|
goto putgpr;
|
|
|
|
|
|
|
|
case FFI_TYPE_INT:
|
2014-01-02 21:02:50 +01:00
|
|
|
case FFI_TYPE_UINT32:
|
|
|
|
case FFI_TYPE_SINT32:
|
|
|
|
case FFI_TYPE_POINTER:
|
|
|
|
- soft_float_prep:
|
|
|
|
|
|
|
|
gprvalue = **p_argv.ui;
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
putgpr:
|
|
|
|
if (intarg_count >= NUM_GPR_ARG_REGISTERS)
|
|
|
|
*next_arg.u++ = gprvalue;
|
|
|
|
else
|
|
|
|
*gpr_base.u++ = gprvalue;
|
|
|
|
intarg_count++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
/* Check that we didn't overrun the stack... */
|
|
|
|
FFI_ASSERT (copy_space.c >= next_arg.c);
|
|
|
|
FFI_ASSERT (gpr_base.u <= stacktop.u - ASM_NEEDS_REGISTERS);
|
|
|
|
+ /* The assert below is testing that the number of integer arguments agrees
|
|
|
|
+ with the number found in ffi_prep_cif_machdep(). However, intarg_count
|
|
|
|
+ is incremented whenever we place an FP arg on the stack, so account for
|
|
|
|
+ that before our assert test. */
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
+ if (fparg_count > NUM_FPR_ARG_REGISTERS)
|
|
|
|
+ intarg_count -= fparg_count - NUM_FPR_ARG_REGISTERS;
|
|
|
|
FFI_ASSERT (fpr_base.u
|
|
|
|
<= stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
|
|
|
|
+#endif
|
|
|
|
FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS || intarg_count <= 4);
|
|
|
|
}
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
/* About the LINUX64 ABI. */
|
|
|
|
enum {
|
|
|
|
NUM_GPR_ARG_REGISTERS64 = 8,
|
|
|
|
NUM_FPR_ARG_REGISTERS64 = 13
|
2014-01-02 21:02:50 +01:00
|
|
|
};
|
|
|
|
enum { ASM_NEEDS_REGISTERS64 = 4 };
|
|
|
|
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+static unsigned int
|
|
|
|
+discover_homogeneous_aggregate (const ffi_type *t, unsigned int *elnum)
|
|
|
|
+{
|
|
|
|
+ switch (t->type)
|
|
|
|
+ {
|
|
|
|
+ case FFI_TYPE_FLOAT:
|
|
|
|
+ case FFI_TYPE_DOUBLE:
|
|
|
|
+ *elnum = 1;
|
|
|
|
+ return (int) t->type;
|
|
|
|
+
|
|
|
|
+ case FFI_TYPE_STRUCT:;
|
|
|
|
+ {
|
|
|
|
+ unsigned int base_elt = 0, total_elnum = 0;
|
|
|
|
+ ffi_type **el = t->elements;
|
|
|
|
+ while (*el)
|
|
|
|
+ {
|
|
|
|
+ unsigned int el_elt, el_elnum = 0;
|
|
|
|
+ el_elt = discover_homogeneous_aggregate (*el, &el_elnum);
|
|
|
|
+ if (el_elt == 0
|
|
|
|
+ || (base_elt && base_elt != el_elt))
|
|
|
|
+ return 0;
|
|
|
|
+ base_elt = el_elt;
|
|
|
|
+ total_elnum += el_elnum;
|
|
|
|
+ if (total_elnum > 8)
|
|
|
|
+ return 0;
|
|
|
|
+ el++;
|
|
|
|
+ }
|
|
|
|
+ *elnum = total_elnum;
|
|
|
|
+ return base_elt;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ default:
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+
|
|
|
|
/* ffi_prep_args64 is called by the assembly routine once stack space
|
|
|
|
has been allocated for the function's arguments.
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
The stack layout we want looks like this:
|
|
|
|
|
|
|
|
| Ret addr from ffi_call_LINUX64 8bytes | higher addresses
|
|
|
|
|--------------------------------------------|
|
|
|
|
| CR save area 8bytes |
|
|
|
|
@@ -418,141 +469,216 @@ ffi_prep_args64 (extended_cif *ecif, uns
|
|
|
|
const unsigned long bytes = ecif->cif->bytes;
|
|
|
|
const unsigned long flags = ecif->cif->flags;
|
|
|
|
|
|
|
|
typedef union {
|
|
|
|
char *c;
|
2014-01-02 21:02:50 +01:00
|
|
|
unsigned long *ul;
|
|
|
|
float *f;
|
|
|
|
double *d;
|
|
|
|
+ size_t p;
|
|
|
|
} valp;
|
|
|
|
|
|
|
|
/* 'stacktop' points at the previous backchain pointer. */
|
2014-01-02 22:31:24 +01:00
|
|
|
valp stacktop;
|
|
|
|
|
|
|
|
/* 'next_arg' points at the space for gpr3, and grows upwards as
|
|
|
|
we use GPR registers, then continues at rest. */
|
|
|
|
valp gpr_base;
|
|
|
|
valp gpr_end;
|
|
|
|
valp rest;
|
|
|
|
valp next_arg;
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
/* 'fpr_base' points at the space for fpr3, and grows upwards as
|
|
|
|
we use FPR registers. */
|
|
|
|
valp fpr_base;
|
|
|
|
- int fparg_count;
|
|
|
|
+ unsigned int fparg_count;
|
|
|
|
|
|
|
|
- int i, words;
|
|
|
|
+ unsigned int i, words, nargs, nfixedargs;
|
|
|
|
ffi_type **ptr;
|
|
|
|
double double_tmp;
|
|
|
|
union {
|
2014-01-02 22:31:24 +01:00
|
|
|
void **v;
|
|
|
|
char **c;
|
|
|
|
signed char **sc;
|
|
|
|
unsigned char **uc;
|
|
|
|
signed short **ss;
|
|
|
|
unsigned short **us;
|
|
|
|
signed int **si;
|
|
|
|
unsigned int **ui;
|
|
|
|
unsigned long **ul;
|
|
|
|
float **f;
|
2014-01-02 21:02:50 +01:00
|
|
|
double **d;
|
|
|
|
} p_argv;
|
|
|
|
unsigned long gprvalue;
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ unsigned long align;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
stacktop.c = (char *) stack + bytes;
|
|
|
|
gpr_base.ul = stacktop.ul - ASM_NEEDS_REGISTERS64 - NUM_GPR_ARG_REGISTERS64;
|
|
|
|
gpr_end.ul = gpr_base.ul + NUM_GPR_ARG_REGISTERS64;
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ rest.ul = stack + 4 + NUM_GPR_ARG_REGISTERS64;
|
|
|
|
+#else
|
|
|
|
rest.ul = stack + 6 + NUM_GPR_ARG_REGISTERS64;
|
|
|
|
+#endif
|
|
|
|
fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS64;
|
|
|
|
fparg_count = 0;
|
|
|
|
next_arg.ul = gpr_base.ul;
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
/* Check that everything starts aligned properly. */
|
|
|
|
FFI_ASSERT (((unsigned long) (char *) stack & 0xF) == 0);
|
|
|
|
FFI_ASSERT (((unsigned long) stacktop.c & 0xF) == 0);
|
|
|
|
FFI_ASSERT ((bytes & 0xF) == 0);
|
|
|
|
|
|
|
|
/* Deal with return values that are actually pass-by-reference. */
|
|
|
|
if (flags & FLAG_RETVAL_REFERENCE)
|
|
|
|
*next_arg.ul++ = (unsigned long) (char *) ecif->rvalue;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
/* Now for the arguments. */
|
|
|
|
p_argv.v = ecif->avalue;
|
|
|
|
- for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
|
|
|
|
- i > 0;
|
|
|
|
- i--, ptr++, p_argv.v++)
|
|
|
|
+ nargs = ecif->cif->nargs;
|
|
|
|
+ nfixedargs = ecif->cif->nfixedargs;
|
|
|
|
+ for (ptr = ecif->cif->arg_types, i = 0;
|
|
|
|
+ i < nargs;
|
|
|
|
+ i++, ptr++, p_argv.v++)
|
|
|
|
{
|
|
|
|
+ unsigned int elt, elnum;
|
|
|
|
+
|
|
|
|
switch ((*ptr)->type)
|
|
|
|
{
|
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
double_tmp = **p_argv.f;
|
|
|
|
- *next_arg.f = (float) double_tmp;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.f = (float) double_tmp;
|
|
|
|
if (++next_arg.ul == gpr_end.ul)
|
|
|
|
next_arg.ul = rest.ul;
|
|
|
|
- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
|
|
|
|
- *fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_DOUBLE:
|
|
|
|
double_tmp = **p_argv.d;
|
|
|
|
- *next_arg.d = double_tmp;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.d = double_tmp;
|
|
|
|
if (++next_arg.ul == gpr_end.ul)
|
|
|
|
next_arg.ul = rest.ul;
|
|
|
|
- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
|
|
|
|
- *fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
|
|
|
break;
|
2014-01-02 22:31:24 +01:00
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
double_tmp = (*p_argv.d)[0];
|
|
|
|
- *next_arg.d = double_tmp;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.d = double_tmp;
|
|
|
|
if (++next_arg.ul == gpr_end.ul)
|
|
|
|
next_arg.ul = rest.ul;
|
|
|
|
- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
|
|
|
|
- *fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
double_tmp = (*p_argv.d)[1];
|
|
|
|
- *next_arg.d = double_tmp;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.d = double_tmp;
|
|
|
|
if (++next_arg.ul == gpr_end.ul)
|
|
|
|
next_arg.ul = rest.ul;
|
|
|
|
- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
|
|
|
|
- *fpr_base.d++ = double_tmp;
|
|
|
|
fparg_count++;
|
|
|
|
FFI_ASSERT (__LDBL_MANT_DIG__ == 106);
|
|
|
|
FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
|
2014-01-02 22:31:24 +01:00
|
|
|
break;
|
2014-01-02 21:02:50 +01:00
|
|
|
#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
- words = ((*ptr)->size + 7) / 8;
|
|
|
|
- if (next_arg.ul >= gpr_base.ul && next_arg.ul + words > gpr_end.ul)
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ align = (*ptr)->alignment;
|
|
|
|
+ if (align > __STRUCT_PARM_ALIGN__)
|
|
|
|
+ align = __STRUCT_PARM_ALIGN__;
|
|
|
|
+ if (align > 1)
|
|
|
|
+ next_arg.p = ALIGN (next_arg.p, align);
|
|
|
|
+#endif
|
|
|
|
+ elt = 0;
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ elt = discover_homogeneous_aggregate (*ptr, &elnum);
|
|
|
|
+#endif
|
|
|
|
+ if (elt)
|
|
|
|
{
|
|
|
|
- size_t first = gpr_end.c - next_arg.c;
|
|
|
|
- memcpy (next_arg.c, *p_argv.c, first);
|
|
|
|
- memcpy (rest.c, *p_argv.c + first, (*ptr)->size - first);
|
|
|
|
- next_arg.c = rest.c + words * 8 - first;
|
|
|
|
+ union {
|
|
|
|
+ void *v;
|
|
|
|
+ float *f;
|
|
|
|
+ double *d;
|
|
|
|
+ } arg;
|
|
|
|
+
|
|
|
|
+ arg.v = *p_argv.v;
|
|
|
|
+ if (elt == FFI_TYPE_FLOAT)
|
|
|
|
+ {
|
|
|
|
+ do
|
|
|
|
+ {
|
|
|
|
+ double_tmp = *arg.f++;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64
|
|
|
|
+ && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.f = (float) double_tmp;
|
|
|
|
+ if (++next_arg.f == gpr_end.f)
|
|
|
|
+ next_arg.f = rest.f;
|
|
|
|
+ fparg_count++;
|
|
|
|
+ }
|
|
|
|
+ while (--elnum != 0);
|
|
|
|
+ if ((next_arg.p & 3) != 0)
|
|
|
|
+ {
|
|
|
|
+ if (++next_arg.f == gpr_end.f)
|
|
|
|
+ next_arg.f = rest.f;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ do
|
|
|
|
+ {
|
|
|
|
+ double_tmp = *arg.d++;
|
|
|
|
+ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
|
|
|
|
+ *fpr_base.d++ = double_tmp;
|
|
|
|
+ else
|
|
|
|
+ *next_arg.d = double_tmp;
|
|
|
|
+ if (++next_arg.d == gpr_end.d)
|
|
|
|
+ next_arg.d = rest.d;
|
|
|
|
+ fparg_count++;
|
|
|
|
+ }
|
|
|
|
+ while (--elnum != 0);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
- char *where = next_arg.c;
|
|
|
|
+ words = ((*ptr)->size + 7) / 8;
|
|
|
|
+ if (next_arg.ul >= gpr_base.ul && next_arg.ul + words > gpr_end.ul)
|
|
|
|
+ {
|
|
|
|
+ size_t first = gpr_end.c - next_arg.c;
|
|
|
|
+ memcpy (next_arg.c, *p_argv.c, first);
|
|
|
|
+ memcpy (rest.c, *p_argv.c + first, (*ptr)->size - first);
|
|
|
|
+ next_arg.c = rest.c + words * 8 - first;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ char *where = next_arg.c;
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
- /* Structures with size less than eight bytes are passed
|
|
|
|
- left-padded. */
|
|
|
|
- if ((*ptr)->size < 8)
|
|
|
|
- where += 8 - (*ptr)->size;
|
|
|
|
-
|
2014-01-02 21:02:50 +01:00
|
|
|
- memcpy (where, *p_argv.c, (*ptr)->size);
|
|
|
|
- next_arg.ul += words;
|
|
|
|
- if (next_arg.ul == gpr_end.ul)
|
|
|
|
- next_arg.ul = rest.ul;
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
+ /* Structures with size less than eight bytes are passed
|
|
|
|
+ left-padded. */
|
|
|
|
+ if ((*ptr)->size < 8)
|
|
|
|
+ where += 8 - (*ptr)->size;
|
|
|
|
+#endif
|
|
|
|
+ memcpy (where, *p_argv.c, (*ptr)->size);
|
|
|
|
+ next_arg.ul += words;
|
|
|
|
+ if (next_arg.ul == gpr_end.ul)
|
|
|
|
+ next_arg.ul = rest.ul;
|
|
|
|
+ }
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
case FFI_TYPE_UINT8:
|
|
|
|
gprvalue = **p_argv.uc;
|
|
|
|
goto putgpr;
|
|
|
|
case FFI_TYPE_SINT8:
|
|
|
|
gprvalue = **p_argv.sc;
|
|
|
|
@@ -586,53 +712,55 @@ ffi_prep_args64 (extended_cif *ecif, uns
|
|
|
|
FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS
|
|
|
|
|| (next_arg.ul >= gpr_base.ul
|
|
|
|
&& next_arg.ul <= gpr_base.ul + 4));
|
|
|
|
}
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
|
|
|
|
/* Perform machine dependent cif processing */
|
|
|
|
-ffi_status
|
|
|
|
-ffi_prep_cif_machdep (ffi_cif *cif)
|
|
|
|
+static ffi_status
|
|
|
|
+ffi_prep_cif_machdep_core (ffi_cif *cif)
|
|
|
|
{
|
|
|
|
/* All this is for the SYSV and LINUX64 ABI. */
|
|
|
|
- int i;
|
|
|
|
ffi_type **ptr;
|
|
|
|
unsigned bytes;
|
|
|
|
- int fparg_count = 0, intarg_count = 0;
|
|
|
|
- unsigned flags = 0;
|
|
|
|
+ unsigned i, fparg_count = 0, intarg_count = 0;
|
|
|
|
+ unsigned flags = cif->flags;
|
|
|
|
unsigned struct_copy_size = 0;
|
|
|
|
unsigned type = cif->rtype->type;
|
|
|
|
unsigned size = cif->rtype->size;
|
|
|
|
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- NUM_FPR_ARG_REGISTERS = 0;
|
|
|
|
-
|
|
|
|
+ /* The machine-independent calculation of cif->bytes doesn't work
|
|
|
|
+ for us. Redo the calculation. */
|
|
|
|
if (cif->abi != FFI_LINUX64)
|
|
|
|
{
|
|
|
|
- /* All the machine-independent calculation of cif->bytes will be wrong.
|
|
|
|
- Redo the calculation for SYSV. */
|
|
|
|
-
|
|
|
|
/* Space for the frame pointer, callee's LR, and the asm's temp regs. */
|
|
|
|
bytes = (2 + ASM_NEEDS_REGISTERS) * sizeof (int);
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
/* Space for the GPR registers. */
|
|
|
|
bytes += NUM_GPR_ARG_REGISTERS * sizeof (int);
|
|
|
|
}
|
2014-01-02 21:02:50 +01:00
|
|
|
else
|
|
|
|
{
|
|
|
|
/* 64-bit ABI. */
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ /* Space for backchain, CR, LR, TOC and the asm's temp regs. */
|
|
|
|
+ bytes = (4 + ASM_NEEDS_REGISTERS64) * sizeof (long);
|
|
|
|
|
|
|
|
+ /* Space for the general registers. */
|
|
|
|
+ bytes += NUM_GPR_ARG_REGISTERS64 * sizeof (long);
|
|
|
|
+#else
|
|
|
|
/* Space for backchain, CR, LR, cc/ld doubleword, TOC and the asm's temp
|
|
|
|
regs. */
|
|
|
|
bytes = (6 + ASM_NEEDS_REGISTERS64) * sizeof (long);
|
|
|
|
|
|
|
|
/* Space for the mandatory parm save area and general registers. */
|
|
|
|
bytes += 2 * NUM_GPR_ARG_REGISTERS64 * sizeof (long);
|
|
|
|
+#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return value handling. The rules for SYSV are as follows:
|
2014-01-02 22:31:24 +01:00
|
|
|
- 32-bit (or less) integer values are returned in gpr3;
|
|
|
|
- Structures of size <= 4 bytes also returned in gpr3;
|
|
|
|
- 64-bit integer values and structures between 5 and 8 bytes are returned
|
|
|
|
in gpr3 and gpr4;
|
|
|
|
- Single/double FP values are returned in fpr1;
|
|
|
|
@@ -641,71 +769,93 @@ ffi_prep_cif_machdep (ffi_cif *cif)
|
|
|
|
- long doubles (if not equivalent to double) are returned in
|
|
|
|
fpr1,fpr2 for Linux and as for large structs for SysV.
|
|
|
|
For LINUX64:
|
|
|
|
- integer values in gpr3;
|
|
|
|
- Structures/Unions by reference;
|
2014-01-02 21:02:50 +01:00
|
|
|
- Single/double FP values in fpr1, long double in fpr1,fpr2.
|
|
|
|
- soft-float float/doubles are treated as UINT32/UINT64 respectivley.
|
|
|
|
- soft-float long doubles are returned in gpr3-gpr6. */
|
|
|
|
+ /* First translate for softfloat/nonlinux */
|
|
|
|
+ if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
+ {
|
|
|
|
+ if (type == FFI_TYPE_FLOAT)
|
|
|
|
+ type = FFI_TYPE_UINT32;
|
|
|
|
+ if (type == FFI_TYPE_DOUBLE)
|
|
|
|
+ type = FFI_TYPE_UINT64;
|
|
|
|
+ if (type == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ type = FFI_TYPE_UINT128;
|
|
|
|
+ }
|
|
|
|
+ else if (cif->abi != FFI_LINUX
|
|
|
|
+ && cif->abi != FFI_LINUX64)
|
|
|
|
+ {
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ if (type == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ type = FFI_TYPE_STRUCT;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
switch (type)
|
|
|
|
{
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64
|
|
|
|
- && cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto byref;
|
|
|
|
flags |= FLAG_RETURNS_128BITS;
|
|
|
|
/* Fall through. */
|
|
|
|
#endif
|
2014-01-02 22:31:24 +01:00
|
|
|
case FFI_TYPE_DOUBLE:
|
2014-01-02 21:02:50 +01:00
|
|
|
flags |= FLAG_RETURNS_64BITS;
|
|
|
|
/* Fall through. */
|
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT no fp registers are used. */
|
|
|
|
- if (cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- flags |= FLAG_RETURNS_FP;
|
|
|
|
+ flags |= FLAG_RETURNS_FP;
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
+ case FFI_TYPE_UINT128:
|
|
|
|
+ flags |= FLAG_RETURNS_128BITS;
|
|
|
|
+ /* Fall through. */
|
|
|
|
case FFI_TYPE_UINT64:
|
|
|
|
case FFI_TYPE_SINT64:
|
|
|
|
flags |= FLAG_RETURNS_64BITS;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
- if (cif->abi == FFI_SYSV)
|
|
|
|
+ /*
|
|
|
|
+ * The final SYSV ABI says that structures smaller or equal 8 bytes
|
|
|
|
+ * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
|
|
|
|
+ * in memory.
|
|
|
|
+ *
|
|
|
|
+ * NOTE: The assembly code can safely assume that it just needs to
|
|
|
|
+ * store both r3 and r4 into a 8-byte word-aligned buffer, as
|
|
|
|
+ * we allocate a temporary buffer in ffi_call() if this flag is
|
|
|
|
+ * set.
|
|
|
|
+ */
|
|
|
|
+ if (cif->abi == FFI_SYSV && size <= 8)
|
|
|
|
{
|
|
|
|
- /* The final SYSV ABI says that structures smaller or equal 8 bytes
|
|
|
|
- are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
|
|
|
|
- in memory. */
|
|
|
|
-
|
|
|
|
- /* Treat structs with size <= 8 bytes. */
|
|
|
|
- if (size <= 8)
|
|
|
|
+ flags |= FLAG_RETURNS_SMST;
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ if (cif->abi == FFI_LINUX64)
|
|
|
|
+ {
|
|
|
|
+ unsigned int elt, elnum;
|
|
|
|
+ elt = discover_homogeneous_aggregate (cif->rtype, &elnum);
|
|
|
|
+ if (elt)
|
|
|
|
+ {
|
|
|
|
+ if (elt == FFI_TYPE_DOUBLE)
|
|
|
|
+ flags |= FLAG_RETURNS_64BITS;
|
|
|
|
+ flags |= FLAG_RETURNS_FP | FLAG_RETURNS_SMST;
|
|
|
|
+ break;
|
|
|
|
+ }
|
|
|
|
+ if (size <= 16)
|
|
|
|
{
|
|
|
|
flags |= FLAG_RETURNS_SMST;
|
|
|
|
- /* These structs are returned in r3. We pack the type and the
|
|
|
|
- precalculated shift value (needed in the sysv.S) into flags.
|
|
|
|
- The same applies for the structs returned in r3/r4. */
|
|
|
|
- if (size <= 4)
|
|
|
|
- {
|
|
|
|
- flags |= FLAG_SYSV_SMST_R3;
|
|
|
|
- flags |= 8 * (4 - size) << 8;
|
|
|
|
- break;
|
|
|
|
- }
|
|
|
|
- /* These structs are returned in r3 and r4. See above. */
|
|
|
|
- if (size <= 8)
|
|
|
|
- {
|
|
|
|
- flags |= FLAG_SYSV_SMST_R3 | FLAG_SYSV_SMST_R4;
|
|
|
|
- flags |= 8 * (8 - size) << 8;
|
|
|
|
- break;
|
|
|
|
- }
|
|
|
|
+ break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- byref:
|
|
|
|
#endif
|
|
|
|
intarg_count++;
|
|
|
|
flags |= FLAG_RETVAL_REFERENCE;
|
2014-01-02 22:31:24 +01:00
|
|
|
/* Fall through. */
|
|
|
|
case FFI_TYPE_VOID:
|
|
|
|
flags |= FLAG_RETURNS_NOTHING;
|
|
|
|
break;
|
|
|
|
|
|
|
|
@@ -717,218 +867,334 @@ ffi_prep_cif_machdep (ffi_cif *cif)
|
|
|
|
if (cif->abi != FFI_LINUX64)
|
|
|
|
/* The first NUM_GPR_ARG_REGISTERS words of integer arguments, and the
|
|
|
|
first NUM_FPR_ARG_REGISTERS fp arguments, go in registers; the rest
|
|
|
|
goes on the stack. Structures and long doubles (if not equivalent
|
|
|
|
to double) are passed as a pointer to a copy of the structure.
|
2014-01-02 21:02:50 +01:00
|
|
|
Stuff on the stack needs to keep proper alignment. */
|
|
|
|
for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
|
|
|
|
{
|
|
|
|
- switch ((*ptr)->type)
|
|
|
|
- {
|
|
|
|
+ unsigned short typenum = (*ptr)->type;
|
|
|
|
+
|
|
|
|
+ /* We may need to handle some values depending on ABI */
|
|
|
|
+ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
|
|
|
|
+ if (typenum == FFI_TYPE_FLOAT)
|
|
|
|
+ typenum = FFI_TYPE_UINT32;
|
|
|
|
+ if (typenum == FFI_TYPE_DOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT64;
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT128;
|
|
|
|
+ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_STRUCT;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ switch (typenum) {
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_float_cif;
|
|
|
|
fparg_count++;
|
|
|
|
/* floating singles are not 8-aligned on stack */
|
|
|
|
break;
|
|
|
|
|
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto do_struct;
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- {
|
|
|
|
- if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3
|
|
|
|
- || intarg_count < NUM_GPR_ARG_REGISTERS)
|
|
|
|
- /* A long double in FFI_LINUX_SOFT_FLOAT can use only
|
|
|
|
- a set of four consecutive gprs. If we have not enough,
|
|
|
|
- we have to adjust the intarg_count value. */
|
|
|
|
- intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
|
|
|
|
- intarg_count += 4;
|
|
|
|
- break;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- fparg_count++;
|
|
|
|
+ fparg_count++;
|
|
|
|
/* Fall thru */
|
|
|
|
#endif
|
|
|
|
case FFI_TYPE_DOUBLE:
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_double_cif;
|
|
|
|
fparg_count++;
|
|
|
|
/* If this FP arg is going on the stack, it must be
|
|
|
|
8-byte-aligned. */
|
2014-01-02 22:31:24 +01:00
|
|
|
if (fparg_count > NUM_FPR_ARG_REGISTERS
|
|
|
|
&& intarg_count >= NUM_GPR_ARG_REGISTERS
|
2014-01-02 21:02:50 +01:00
|
|
|
&& intarg_count % 2 != 0)
|
|
|
|
intarg_count++;
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
+ case FFI_TYPE_UINT128:
|
|
|
|
+ /*
|
|
|
|
+ * A long double in FFI_LINUX_SOFT_FLOAT can use only a set
|
|
|
|
+ * of four consecutive gprs. If we do not have enough, we
|
|
|
|
+ * have to adjust the intarg_count value.
|
|
|
|
+ */
|
|
|
|
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3
|
|
|
|
+ && intarg_count < NUM_GPR_ARG_REGISTERS)
|
|
|
|
+ intarg_count = NUM_GPR_ARG_REGISTERS;
|
|
|
|
+ intarg_count += 4;
|
|
|
|
+ break;
|
|
|
|
|
|
|
|
case FFI_TYPE_UINT64:
|
|
|
|
case FFI_TYPE_SINT64:
|
|
|
|
- soft_double_cif:
|
|
|
|
/* 'long long' arguments are passed as two words, but
|
|
|
|
either both words must fit in registers or both go
|
|
|
|
on the stack. If they go on the stack, they must
|
2014-01-02 22:31:24 +01:00
|
|
|
be 8-byte-aligned.
|
|
|
|
|
|
|
|
Also, only certain register pairs can be used for
|
|
|
|
passing long long int -- specifically (r3,r4), (r5,r6),
|
|
|
|
(r7,r8), (r9,r10).
|
|
|
|
*/
|
|
|
|
if (intarg_count == NUM_GPR_ARG_REGISTERS-1
|
|
|
|
|| intarg_count % 2 != 0)
|
|
|
|
intarg_count++;
|
|
|
|
intarg_count += 2;
|
2014-01-02 21:02:50 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- do_struct:
|
|
|
|
-#endif
|
|
|
|
/* We must allocate space for a copy of these to enforce
|
|
|
|
pass-by-value. Pad the space up to a multiple of 16
|
|
|
|
bytes (the maximum alignment required for anything under
|
2014-01-02 22:31:24 +01:00
|
|
|
the SYSV ABI). */
|
2014-01-02 21:02:50 +01:00
|
|
|
struct_copy_size += ((*ptr)->size + 15) & ~0xF;
|
|
|
|
/* Fall through (allocate space for the pointer). */
|
|
|
|
|
|
|
|
- default:
|
|
|
|
- soft_float_cif:
|
|
|
|
+ case FFI_TYPE_POINTER:
|
|
|
|
+ case FFI_TYPE_INT:
|
|
|
|
+ case FFI_TYPE_UINT32:
|
|
|
|
+ case FFI_TYPE_SINT32:
|
|
|
|
+ case FFI_TYPE_UINT16:
|
|
|
|
+ case FFI_TYPE_SINT16:
|
|
|
|
+ case FFI_TYPE_UINT8:
|
|
|
|
+ case FFI_TYPE_SINT8:
|
|
|
|
/* Everything else is passed as a 4-byte word in a GPR, either
|
|
|
|
the object itself or a pointer to it. */
|
|
|
|
intarg_count++;
|
|
|
|
break;
|
|
|
|
+ default:
|
|
|
|
+ FFI_ASSERT (0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
|
|
|
|
{
|
|
|
|
+ unsigned int elt, elnum;
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ unsigned int align;
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
switch ((*ptr)->type)
|
|
|
|
{
|
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- intarg_count += 4;
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- fparg_count += 2;
|
|
|
|
- intarg_count += 2;
|
|
|
|
- }
|
|
|
|
+ fparg_count += 2;
|
|
|
|
+ intarg_count += 2;
|
2014-03-18 20:44:32 +01:00
|
|
|
+ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
|
2014-01-02 21:02:50 +01:00
|
|
|
+ flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
case FFI_TYPE_DOUBLE:
|
|
|
|
fparg_count++;
|
|
|
|
intarg_count++;
|
2014-03-18 20:44:32 +01:00
|
|
|
+ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
|
2014-01-02 21:02:50 +01:00
|
|
|
+ flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ align = (*ptr)->alignment;
|
|
|
|
+ if (align > __STRUCT_PARM_ALIGN__)
|
|
|
|
+ align = __STRUCT_PARM_ALIGN__;
|
|
|
|
+ align = align / 8;
|
|
|
|
+ if (align > 1)
|
|
|
|
+ intarg_count = ALIGN (intarg_count, align);
|
|
|
|
+#endif
|
|
|
|
intarg_count += ((*ptr)->size + 7) / 8;
|
|
|
|
+ elt = 0;
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ elt = discover_homogeneous_aggregate (*ptr, &elnum);
|
|
|
|
+#endif
|
|
|
|
+ if (elt)
|
|
|
|
+ {
|
|
|
|
+ fparg_count += elnum;
|
2014-03-18 20:44:32 +01:00
|
|
|
+ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
|
2014-01-02 21:02:50 +01:00
|
|
|
+ flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
2014-03-18 20:44:32 +01:00
|
|
|
+ if (intarg_count > NUM_GPR_ARG_REGISTERS64)
|
2014-01-02 21:02:50 +01:00
|
|
|
+ flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
+ }
|
|
|
|
break;
|
|
|
|
|
|
|
|
- default:
|
|
|
|
+ case FFI_TYPE_POINTER:
|
|
|
|
+ case FFI_TYPE_UINT64:
|
|
|
|
+ case FFI_TYPE_SINT64:
|
|
|
|
+ case FFI_TYPE_INT:
|
|
|
|
+ case FFI_TYPE_UINT32:
|
|
|
|
+ case FFI_TYPE_SINT32:
|
|
|
|
+ case FFI_TYPE_UINT16:
|
|
|
|
+ case FFI_TYPE_SINT16:
|
|
|
|
+ case FFI_TYPE_UINT8:
|
|
|
|
+ case FFI_TYPE_SINT8:
|
|
|
|
/* Everything else is passed as a 8-byte word in a GPR, either
|
|
|
|
the object itself or a pointer to it. */
|
|
|
|
intarg_count++;
|
2014-03-18 20:44:32 +01:00
|
|
|
+ if (intarg_count > NUM_GPR_ARG_REGISTERS64)
|
2014-01-02 21:02:50 +01:00
|
|
|
+ flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
break;
|
|
|
|
+ default:
|
|
|
|
+ FFI_ASSERT (0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
if (fparg_count != 0)
|
|
|
|
flags |= FLAG_FP_ARGUMENTS;
|
|
|
|
+#endif
|
|
|
|
if (intarg_count > 4)
|
|
|
|
flags |= FLAG_4_GPR_ARGUMENTS;
|
|
|
|
if (struct_copy_size != 0)
|
2014-01-02 22:31:24 +01:00
|
|
|
flags |= FLAG_ARG_NEEDS_COPY;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
if (cif->abi != FFI_LINUX64)
|
|
|
|
{
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
/* Space for the FPR registers, if needed. */
|
|
|
|
if (fparg_count != 0)
|
|
|
|
bytes += NUM_FPR_ARG_REGISTERS * sizeof (double);
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
/* Stack space. */
|
|
|
|
if (intarg_count > NUM_GPR_ARG_REGISTERS)
|
|
|
|
bytes += (intarg_count - NUM_GPR_ARG_REGISTERS) * sizeof (int);
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
if (fparg_count > NUM_FPR_ARG_REGISTERS)
|
|
|
|
bytes += (fparg_count - NUM_FPR_ARG_REGISTERS) * sizeof (double);
|
|
|
|
+#endif
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
/* Space for the FPR registers, if needed. */
|
|
|
|
if (fparg_count != 0)
|
|
|
|
bytes += NUM_FPR_ARG_REGISTERS64 * sizeof (double);
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
/* Stack space. */
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ if ((flags & FLAG_ARG_NEEDS_PSAVE) != 0)
|
|
|
|
+ bytes += intarg_count * sizeof (long);
|
|
|
|
+#else
|
|
|
|
if (intarg_count > NUM_GPR_ARG_REGISTERS64)
|
|
|
|
bytes += (intarg_count - NUM_GPR_ARG_REGISTERS64) * sizeof (long);
|
|
|
|
+#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The stack space allocated needs to be a multiple of 16 bytes. */
|
2014-01-02 22:31:24 +01:00
|
|
|
bytes = (bytes + 15) & ~0xF;
|
|
|
|
|
|
|
|
/* Add in the space for the copied structures. */
|
|
|
|
bytes += struct_copy_size;
|
|
|
|
|
|
|
|
cif->flags = flags;
|
|
|
|
cif->bytes = bytes;
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
return FFI_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
+ffi_status
|
|
|
|
+ffi_prep_cif_machdep (ffi_cif *cif)
|
|
|
|
+{
|
|
|
|
+ cif->nfixedargs = cif->nargs;
|
|
|
|
+ return ffi_prep_cif_machdep_core (cif);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+ffi_status
|
|
|
|
+ffi_prep_cif_machdep_var (ffi_cif *cif,
|
|
|
|
+ unsigned int nfixedargs,
|
|
|
|
+ unsigned int ntotalargs MAYBE_UNUSED)
|
|
|
|
+{
|
|
|
|
+ cif->nfixedargs = nfixedargs;
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ if (cif->abi == FFI_LINUX64)
|
|
|
|
+ cif->flags |= FLAG_ARG_NEEDS_PSAVE;
|
|
|
|
+#endif
|
|
|
|
+ return ffi_prep_cif_machdep_core (cif);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
extern void ffi_call_SYSV(extended_cif *, unsigned, unsigned, unsigned *,
|
|
|
|
void (*fn)(void));
|
|
|
|
extern void FFI_HIDDEN ffi_call_LINUX64(extended_cif *, unsigned long,
|
2014-01-02 22:31:24 +01:00
|
|
|
unsigned long, unsigned long *,
|
|
|
|
void (*fn)(void));
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
void
|
|
|
|
ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
|
|
|
|
{
|
|
|
|
+ /*
|
|
|
|
+ * The final SYSV ABI says that structures smaller or equal 8 bytes
|
|
|
|
+ * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
|
|
|
|
+ * in memory.
|
|
|
|
+ *
|
|
|
|
+ * We bounce-buffer SYSV small struct return values so that sysv.S
|
|
|
|
+ * can write r3 and r4 to memory without worrying about struct size.
|
|
|
|
+ *
|
|
|
|
+ * For ELFv2 ABI, use a bounce buffer for homogeneous structs too,
|
|
|
|
+ * for similar reasons.
|
|
|
|
+ */
|
|
|
|
+ unsigned long smst_buffer[8];
|
|
|
|
extended_cif ecif;
|
|
|
|
|
|
|
|
ecif.cif = cif;
|
|
|
|
ecif.avalue = avalue;
|
|
|
|
|
|
|
|
- /* If the return value is a struct and we don't have a return */
|
|
|
|
- /* value address then we need to make one */
|
|
|
|
-
|
|
|
|
- if ((rvalue == NULL) && (cif->rtype->type == FFI_TYPE_STRUCT))
|
|
|
|
- {
|
|
|
|
- ecif.rvalue = alloca(cif->rtype->size);
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- ecif.rvalue = rvalue;
|
|
|
|
-
|
|
|
|
+ ecif.rvalue = rvalue;
|
|
|
|
+ if ((cif->flags & FLAG_RETURNS_SMST) != 0)
|
|
|
|
+ ecif.rvalue = smst_buffer;
|
|
|
|
+ /* Ensure that we have a valid struct return value.
|
|
|
|
+ FIXME: Isn't this just papering over a user problem? */
|
|
|
|
+ else if (!rvalue && cif->rtype->type == FFI_TYPE_STRUCT)
|
|
|
|
+ ecif.rvalue = alloca (cif->rtype->size);
|
|
|
|
|
|
|
|
switch (cif->abi)
|
|
|
|
{
|
|
|
|
#ifndef POWERPC64
|
|
|
|
+# ifndef __NO_FPRS__
|
|
|
|
case FFI_SYSV:
|
|
|
|
case FFI_GCC_SYSV:
|
|
|
|
case FFI_LINUX:
|
|
|
|
+# endif
|
|
|
|
case FFI_LINUX_SOFT_FLOAT:
|
|
|
|
ffi_call_SYSV (&ecif, -cif->bytes, cif->flags, ecif.rvalue, fn);
|
|
|
|
break;
|
2014-01-02 22:31:24 +01:00
|
|
|
#else
|
|
|
|
case FFI_LINUX64:
|
|
|
|
ffi_call_LINUX64 (&ecif, -(long) cif->bytes, cif->flags, ecif.rvalue, fn);
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
default:
|
2014-01-02 21:02:50 +01:00
|
|
|
FFI_ASSERT (0);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
+
|
|
|
|
+ /* Check for a bounce-buffered return value */
|
|
|
|
+ if (rvalue && ecif.rvalue == smst_buffer)
|
|
|
|
+ {
|
|
|
|
+ unsigned int rsize = cif->rtype->size;
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
+ /* The SYSV ABI returns a structure of up to 4 bytes in size
|
|
|
|
+ left-padded in r3. */
|
|
|
|
+ if (cif->abi == FFI_SYSV && rsize <= 4)
|
|
|
|
+ memcpy (rvalue, (char *) smst_buffer + 4 - rsize, rsize);
|
|
|
|
+ /* The SYSV ABI returns a structure of up to 8 bytes in size
|
|
|
|
+ left-padded in r3/r4, and the ELFv2 ABI similarly returns a
|
|
|
|
+ structure of up to 8 bytes in size left-padded in r3. */
|
|
|
|
+ else if (rsize <= 8)
|
|
|
|
+ memcpy (rvalue, (char *) smst_buffer + 8 - rsize, rsize);
|
|
|
|
+ else
|
|
|
|
+#endif
|
|
|
|
+ memcpy (rvalue, smst_buffer, rsize);
|
|
|
|
+ }
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
-#ifndef POWERPC64
|
|
|
|
+#if !defined POWERPC64 || _CALL_ELF == 2
|
|
|
|
#define MIN_CACHE_LINE_SIZE 8
|
|
|
|
|
|
|
|
static void
|
2014-01-02 22:31:24 +01:00
|
|
|
flush_icache (char *wraddr, char *xaddr, int size)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < size; i += MIN_CACHE_LINE_SIZE)
|
|
|
|
__asm__ volatile ("icbi 0,%0;" "dcbf 0,%1;"
|
|
|
|
@@ -942,26 +1208,48 @@ flush_icache (char *wraddr, char *xaddr,
|
|
|
|
ffi_status
|
|
|
|
ffi_prep_closure_loc (ffi_closure *closure,
|
|
|
|
ffi_cif *cif,
|
|
|
|
void (*fun) (ffi_cif *, void *, void **, void *),
|
|
|
|
void *user_data,
|
2014-01-02 21:02:50 +01:00
|
|
|
void *codeloc)
|
|
|
|
{
|
|
|
|
#ifdef POWERPC64
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ unsigned int *tramp = (unsigned int *) &closure->tramp[0];
|
|
|
|
+
|
|
|
|
+ if (cif->abi != FFI_LINUX64)
|
|
|
|
+ return FFI_BAD_ABI;
|
|
|
|
+
|
|
|
|
+ tramp[0] = 0xe96c0018; /* 0: ld 11,2f-0b(12) */
|
|
|
|
+ tramp[1] = 0xe98c0010; /* ld 12,1f-0b(12) */
|
|
|
|
+ tramp[2] = 0x7d8903a6; /* mtctr 12 */
|
|
|
|
+ tramp[3] = 0x4e800420; /* bctr */
|
|
|
|
+ /* 1: .quad function_addr */
|
|
|
|
+ /* 2: .quad context */
|
|
|
|
+ *(void **) &tramp[4] = (void *) ffi_closure_LINUX64;
|
|
|
|
+ *(void **) &tramp[6] = codeloc;
|
|
|
|
+ flush_icache ((char *)tramp, (char *)codeloc, FFI_TRAMPOLINE_SIZE);
|
|
|
|
+# else
|
|
|
|
void **tramp = (void **) &closure->tramp[0];
|
|
|
|
|
|
|
|
- FFI_ASSERT (cif->abi == FFI_LINUX64);
|
|
|
|
+ if (cif->abi != FFI_LINUX64)
|
|
|
|
+ return FFI_BAD_ABI;
|
|
|
|
/* Copy function address and TOC from ffi_closure_LINUX64. */
|
|
|
|
memcpy (tramp, (char *) ffi_closure_LINUX64, 16);
|
|
|
|
tramp[2] = codeloc;
|
|
|
|
+# endif
|
|
|
|
#else
|
|
|
|
unsigned int *tramp;
|
|
|
|
|
|
|
|
- FFI_ASSERT (cif->abi == FFI_GCC_SYSV || cif->abi == FFI_SYSV);
|
|
|
|
+ if (! (cif->abi == FFI_GCC_SYSV
|
|
|
|
+ || cif->abi == FFI_SYSV
|
|
|
|
+ || cif->abi == FFI_LINUX
|
|
|
|
+ || cif->abi == FFI_LINUX_SOFT_FLOAT))
|
|
|
|
+ return FFI_BAD_ABI;
|
|
|
|
|
|
|
|
tramp = (unsigned int *) &closure->tramp[0];
|
|
|
|
tramp[0] = 0x7c0802a6; /* mflr r0 */
|
2014-01-02 22:31:24 +01:00
|
|
|
tramp[1] = 0x4800000d; /* bl 10 <trampoline_initial+0x10> */
|
|
|
|
tramp[4] = 0x7d6802a6; /* mflr r11 */
|
|
|
|
tramp[5] = 0x7c0803a6; /* mtlr r0 */
|
|
|
|
tramp[6] = 0x800b0000; /* lwz r0,0(r11) */
|
|
|
|
tramp[7] = 0x816b0004; /* lwz r11,4(r11) */
|
|
|
|
@@ -1006,110 +1294,215 @@ ffi_closure_helper_SYSV (ffi_closure *cl
|
|
|
|
/* rvalue is the pointer to space for return value in closure assembly */
|
|
|
|
/* pgr is the pointer to where r3-r10 are stored in ffi_closure_SYSV */
|
|
|
|
/* pfr is the pointer to where f1-f8 are stored in ffi_closure_SYSV */
|
|
|
|
/* pst is the pointer to outgoing parameter stack in original caller */
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
void ** avalue;
|
|
|
|
ffi_type ** arg_types;
|
|
|
|
long i, avn;
|
|
|
|
- long nf; /* number of floating registers already used */
|
|
|
|
- long ng; /* number of general registers already used */
|
|
|
|
- ffi_cif * cif;
|
|
|
|
- double temp;
|
|
|
|
- unsigned size;
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
+ long nf = 0; /* number of floating registers already used */
|
|
|
|
+#endif
|
|
|
|
+ long ng = 0; /* number of general registers already used */
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
- cif = closure->cif;
|
2014-01-02 21:02:50 +01:00
|
|
|
+ ffi_cif *cif = closure->cif;
|
|
|
|
+ unsigned size = cif->rtype->size;
|
|
|
|
+ unsigned short rtypenum = cif->rtype->type;
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
2014-01-02 21:02:50 +01:00
|
|
|
avalue = alloca (cif->nargs * sizeof (void *));
|
|
|
|
- size = cif->rtype->size;
|
|
|
|
|
|
|
|
- nf = 0;
|
|
|
|
- ng = 0;
|
|
|
|
+ /* First translate for softfloat/nonlinux */
|
|
|
|
+ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
|
|
|
|
+ if (rtypenum == FFI_TYPE_FLOAT)
|
|
|
|
+ rtypenum = FFI_TYPE_UINT32;
|
|
|
|
+ if (rtypenum == FFI_TYPE_DOUBLE)
|
|
|
|
+ rtypenum = FFI_TYPE_UINT64;
|
|
|
|
+ if (rtypenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ rtypenum = FFI_TYPE_UINT128;
|
|
|
|
+ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ if (rtypenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ rtypenum = FFI_TYPE_STRUCT;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
|
|
|
|
/* Copy the caller's structure return value address so that the closure
|
|
|
|
returns the data directly to the caller.
|
|
|
|
For FFI_SYSV the result is passed in r3/r4 if the struct size is less
|
|
|
|
or equal 8 bytes. */
|
|
|
|
-
|
|
|
|
- if ((cif->rtype->type == FFI_TYPE_STRUCT
|
|
|
|
- && !((cif->abi == FFI_SYSV) && (size <= 8)))
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- || (cif->rtype->type == FFI_TYPE_LONGDOUBLE
|
|
|
|
- && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
-#endif
|
|
|
|
- )
|
|
|
|
- {
|
|
|
|
+ if (rtypenum == FFI_TYPE_STRUCT && ((cif->abi != FFI_SYSV) || (size > 8))) {
|
|
|
|
rvalue = (void *) *pgr;
|
|
|
|
ng++;
|
|
|
|
pgr++;
|
2014-01-02 22:31:24 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
avn = cif->nargs;
|
2014-01-02 21:02:50 +01:00
|
|
|
arg_types = cif->arg_types;
|
|
|
|
|
|
|
|
/* Grab the addresses of the arguments from the stack frame. */
|
|
|
|
- while (i < avn)
|
|
|
|
- {
|
|
|
|
- switch (arg_types[i]->type)
|
|
|
|
- {
|
|
|
|
+ while (i < avn) {
|
|
|
|
+ unsigned short typenum = arg_types[i]->type;
|
|
|
|
+
|
|
|
|
+ /* We may need to handle some values depending on ABI */
|
|
|
|
+ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
|
|
|
|
+ if (typenum == FFI_TYPE_FLOAT)
|
|
|
|
+ typenum = FFI_TYPE_UINT32;
|
|
|
|
+ if (typenum == FFI_TYPE_DOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT64;
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_UINT128;
|
|
|
|
+ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ if (typenum == FFI_TYPE_LONGDOUBLE)
|
|
|
|
+ typenum = FFI_TYPE_STRUCT;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ switch (typenum) {
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
+ case FFI_TYPE_FLOAT:
|
|
|
|
+ /* unfortunately float values are stored as doubles
|
|
|
|
+ * in the ffi_closure_SYSV code (since we don't check
|
|
|
|
+ * the type in that routine).
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ /* there are 8 64bit floating point registers */
|
|
|
|
+
|
|
|
|
+ if (nf < 8)
|
|
|
|
+ {
|
|
|
|
+ double temp = pfr->d;
|
|
|
|
+ pfr->f = (float) temp;
|
|
|
|
+ avalue[i] = pfr;
|
|
|
|
+ nf++;
|
|
|
|
+ pfr++;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ /* FIXME? here we are really changing the values
|
|
|
|
+ * stored in the original calling routines outgoing
|
|
|
|
+ * parameter stack. This is probably a really
|
|
|
|
+ * naughty thing to do but...
|
|
|
|
+ */
|
|
|
|
+ avalue[i] = pst;
|
|
|
|
+ pst += 1;
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+
|
|
|
|
+ case FFI_TYPE_DOUBLE:
|
|
|
|
+ /* On the outgoing stack all values are aligned to 8 */
|
|
|
|
+ /* there are 8 64bit floating point registers */
|
|
|
|
+
|
|
|
|
+ if (nf < 8)
|
|
|
|
+ {
|
|
|
|
+ avalue[i] = pfr;
|
|
|
|
+ nf++;
|
|
|
|
+ pfr++;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ if (((long) pst) & 4)
|
|
|
|
+ pst++;
|
|
|
|
+ avalue[i] = pst;
|
|
|
|
+ pst += 2;
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+
|
|
|
|
+#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
+ case FFI_TYPE_LONGDOUBLE:
|
|
|
|
+ if (nf < 7)
|
|
|
|
+ {
|
|
|
|
+ avalue[i] = pfr;
|
|
|
|
+ pfr += 2;
|
|
|
|
+ nf += 2;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ if (((long) pst) & 4)
|
|
|
|
+ pst++;
|
|
|
|
+ avalue[i] = pst;
|
|
|
|
+ pst += 4;
|
|
|
|
+ nf = 8;
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+#endif
|
|
|
|
+#endif /* have FPRS */
|
|
|
|
+
|
|
|
|
+ case FFI_TYPE_UINT128:
|
|
|
|
+ /*
|
|
|
|
+ * Test if for the whole long double, 4 gprs are available.
|
|
|
|
+ * otherwise the stuff ends up on the stack.
|
|
|
|
+ */
|
|
|
|
+ if (ng < 5) {
|
|
|
|
+ avalue[i] = pgr;
|
|
|
|
+ pgr += 4;
|
|
|
|
+ ng += 4;
|
|
|
|
+ } else {
|
|
|
|
+ avalue[i] = pst;
|
|
|
|
+ pst += 4;
|
|
|
|
+ ng = 8+4;
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+
|
|
|
|
case FFI_TYPE_SINT8:
|
|
|
|
case FFI_TYPE_UINT8:
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
/* there are 8 gpr registers used to pass values */
|
|
|
|
if (ng < 8)
|
|
|
|
{
|
2014-01-02 22:31:24 +01:00
|
|
|
avalue[i] = (char *) pgr + 3;
|
|
|
|
ng++;
|
|
|
|
pgr++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
avalue[i] = (char *) pst + 3;
|
2014-01-02 21:02:50 +01:00
|
|
|
pst++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_SINT16:
|
|
|
|
case FFI_TYPE_UINT16:
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
/* there are 8 gpr registers used to pass values */
|
|
|
|
if (ng < 8)
|
|
|
|
{
|
2014-01-02 22:31:24 +01:00
|
|
|
avalue[i] = (char *) pgr + 2;
|
|
|
|
ng++;
|
|
|
|
pgr++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
avalue[i] = (char *) pst + 2;
|
2014-01-02 21:02:50 +01:00
|
|
|
pst++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_SINT32:
|
|
|
|
case FFI_TYPE_UINT32:
|
|
|
|
case FFI_TYPE_POINTER:
|
|
|
|
- soft_float_closure:
|
|
|
|
/* there are 8 gpr registers used to pass values */
|
|
|
|
if (ng < 8)
|
|
|
|
{
|
2014-01-02 22:31:24 +01:00
|
|
|
avalue[i] = pgr;
|
|
|
|
ng++;
|
|
|
|
pgr++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
avalue[i] = pst;
|
|
|
|
pst++;
|
|
|
|
}
|
2014-01-02 21:02:50 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- do_struct:
|
|
|
|
-#endif
|
|
|
|
/* Structs are passed by reference. The address will appear in a
|
|
|
|
gpr if it is one of the first 8 arguments. */
|
|
|
|
if (ng < 8)
|
2014-01-02 22:31:24 +01:00
|
|
|
{
|
|
|
|
avalue[i] = (void *) *pgr;
|
|
|
|
ng++;
|
|
|
|
pgr++;
|
|
|
|
}
|
|
|
|
@@ -1117,17 +1510,16 @@ ffi_closure_helper_SYSV (ffi_closure *cl
|
|
|
|
{
|
|
|
|
avalue[i] = (void *) *pst;
|
|
|
|
pst++;
|
|
|
|
}
|
|
|
|
break;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
case FFI_TYPE_SINT64:
|
|
|
|
case FFI_TYPE_UINT64:
|
|
|
|
- soft_double_closure:
|
|
|
|
/* passing long long ints are complex, they must
|
|
|
|
* be passed in suitable register pairs such as
|
|
|
|
* (r3,r4) or (r5,r6) or (r6,r7), or (r7,r8) or (r9,r10)
|
2014-01-02 22:31:24 +01:00
|
|
|
* and if the entire pair aren't available then the outgoing
|
|
|
|
* parameter stack is used for both but an alignment of 8
|
|
|
|
* must will be kept. So we must either look in pgr
|
|
|
|
* or pst to find the correct address for this type
|
|
|
|
* of parameter.
|
|
|
|
@@ -1149,277 +1541,239 @@ ffi_closure_helper_SYSV (ffi_closure *cl
|
|
|
|
if (((long) pst) & 4)
|
|
|
|
pst++;
|
|
|
|
avalue[i] = pst;
|
|
|
|
pst += 2;
|
|
|
|
ng = 8;
|
2014-01-02 21:02:50 +01:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
- case FFI_TYPE_FLOAT:
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_float_closure;
|
|
|
|
- /* unfortunately float values are stored as doubles
|
|
|
|
- * in the ffi_closure_SYSV code (since we don't check
|
|
|
|
- * the type in that routine).
|
|
|
|
- */
|
|
|
|
-
|
|
|
|
- /* there are 8 64bit floating point registers */
|
|
|
|
-
|
|
|
|
- if (nf < 8)
|
|
|
|
- {
|
|
|
|
- temp = pfr->d;
|
|
|
|
- pfr->f = (float) temp;
|
|
|
|
- avalue[i] = pfr;
|
|
|
|
- nf++;
|
|
|
|
- pfr++;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- /* FIXME? here we are really changing the values
|
|
|
|
- * stored in the original calling routines outgoing
|
|
|
|
- * parameter stack. This is probably a really
|
|
|
|
- * naughty thing to do but...
|
|
|
|
- */
|
|
|
|
- avalue[i] = pst;
|
|
|
|
- pst += 1;
|
|
|
|
- }
|
|
|
|
- break;
|
|
|
|
-
|
|
|
|
- case FFI_TYPE_DOUBLE:
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto soft_double_closure;
|
|
|
|
- /* On the outgoing stack all values are aligned to 8 */
|
|
|
|
- /* there are 8 64bit floating point registers */
|
|
|
|
-
|
|
|
|
- if (nf < 8)
|
|
|
|
- {
|
|
|
|
- avalue[i] = pfr;
|
|
|
|
- nf++;
|
|
|
|
- pfr++;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- if (((long) pst) & 4)
|
|
|
|
- pst++;
|
|
|
|
- avalue[i] = pst;
|
|
|
|
- pst += 2;
|
|
|
|
- }
|
|
|
|
- break;
|
|
|
|
-
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- goto do_struct;
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- { /* Test if for the whole long double, 4 gprs are available.
|
|
|
|
- otherwise the stuff ends up on the stack. */
|
|
|
|
- if (ng < 5)
|
|
|
|
- {
|
|
|
|
- avalue[i] = pgr;
|
|
|
|
- pgr += 4;
|
|
|
|
- ng += 4;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- avalue[i] = pst;
|
|
|
|
- pst += 4;
|
|
|
|
- ng = 8;
|
|
|
|
- }
|
|
|
|
- break;
|
|
|
|
- }
|
|
|
|
- if (nf < 7)
|
|
|
|
- {
|
|
|
|
- avalue[i] = pfr;
|
|
|
|
- pfr += 2;
|
|
|
|
- nf += 2;
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- if (((long) pst) & 4)
|
|
|
|
- pst++;
|
|
|
|
- avalue[i] = pst;
|
|
|
|
- pst += 4;
|
|
|
|
- nf = 8;
|
|
|
|
- }
|
|
|
|
- break;
|
|
|
|
-#endif
|
|
|
|
-
|
|
|
|
default:
|
|
|
|
- FFI_ASSERT (0);
|
|
|
|
+ FFI_ASSERT (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
i++;
|
2014-01-02 22:31:24 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
(closure->fun) (cif, rvalue, avalue, closure->user_data);
|
|
|
|
|
|
|
|
/* Tell ffi_closure_SYSV how to perform return type promotions.
|
|
|
|
Because the FFI_SYSV ABI returns the structures <= 8 bytes in r3/r4
|
|
|
|
we have to tell ffi_closure_SYSV how to treat them. We combine the base
|
|
|
|
type FFI_SYSV_TYPE_SMALL_STRUCT - 1 with the size of the struct.
|
|
|
|
So a one byte struct gets the return type 16. Return type 1 to 15 are
|
2014-01-02 21:02:50 +01:00
|
|
|
already used and we never have a struct with size zero. That is the reason
|
|
|
|
for the subtraction of 1. See the comment in ffitarget.h about ordering.
|
|
|
|
*/
|
|
|
|
- if (cif->abi == FFI_SYSV && cif->rtype->type == FFI_TYPE_STRUCT
|
|
|
|
- && size <= 8)
|
|
|
|
+ if (cif->abi == FFI_SYSV && rtypenum == FFI_TYPE_STRUCT && size <= 8)
|
|
|
|
return (FFI_SYSV_TYPE_SMALL_STRUCT - 1) + size;
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- else if (cif->rtype->type == FFI_TYPE_LONGDOUBLE
|
|
|
|
- && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- return FFI_TYPE_STRUCT;
|
|
|
|
-#endif
|
|
|
|
- /* With FFI_LINUX_SOFT_FLOAT floats and doubles are handled like UINT32
|
|
|
|
- respectivley UINT64. */
|
|
|
|
- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
|
|
|
|
- {
|
|
|
|
- switch (cif->rtype->type)
|
|
|
|
- {
|
|
|
|
- case FFI_TYPE_FLOAT:
|
|
|
|
- return FFI_TYPE_UINT32;
|
|
|
|
- break;
|
|
|
|
- case FFI_TYPE_DOUBLE:
|
|
|
|
- return FFI_TYPE_UINT64;
|
|
|
|
- break;
|
|
|
|
-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
- case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- return FFI_TYPE_UINT128;
|
|
|
|
- break;
|
|
|
|
-#endif
|
|
|
|
- default:
|
|
|
|
- return cif->rtype->type;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- return cif->rtype->type;
|
|
|
|
- }
|
|
|
|
+ return rtypenum;
|
|
|
|
}
|
|
|
|
|
|
|
|
int FFI_HIDDEN ffi_closure_helper_LINUX64 (ffi_closure *, void *,
|
2014-01-02 22:31:24 +01:00
|
|
|
unsigned long *, ffi_dblfl *);
|
|
|
|
|
|
|
|
int FFI_HIDDEN
|
|
|
|
ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
|
|
|
|
unsigned long *pst, ffi_dblfl *pfr)
|
|
|
|
{
|
|
|
|
/* rvalue is the pointer to space for return value in closure assembly */
|
|
|
|
/* pst is the pointer to parameter save area
|
|
|
|
(r3-r10 are stored into its first 8 slots by ffi_closure_LINUX64) */
|
|
|
|
/* pfr is the pointer to where f1-f13 are stored in ffi_closure_LINUX64 */
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
void **avalue;
|
|
|
|
ffi_type **arg_types;
|
|
|
|
- long i, avn;
|
|
|
|
+ unsigned long i, avn, nfixedargs;
|
|
|
|
ffi_cif *cif;
|
|
|
|
ffi_dblfl *end_pfr = pfr + NUM_FPR_ARG_REGISTERS64;
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ unsigned long align;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
cif = closure->cif;
|
|
|
|
avalue = alloca (cif->nargs * sizeof (void *));
|
|
|
|
|
|
|
|
- /* Copy the caller's structure return value address so that the closure
|
|
|
|
- returns the data directly to the caller. */
|
|
|
|
- if (cif->rtype->type == FFI_TYPE_STRUCT)
|
|
|
|
+ /* Copy the caller's structure return value address so that the
|
|
|
|
+ closure returns the data directly to the caller. */
|
|
|
|
+ if (cif->rtype->type == FFI_TYPE_STRUCT
|
|
|
|
+ && (cif->flags & FLAG_RETURNS_SMST) == 0)
|
|
|
|
{
|
|
|
|
rvalue = (void *) *pst;
|
|
|
|
pst++;
|
2014-01-02 22:31:24 +01:00
|
|
|
}
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
i = 0;
|
|
|
|
avn = cif->nargs;
|
|
|
|
+ nfixedargs = cif->nfixedargs;
|
|
|
|
arg_types = cif->arg_types;
|
|
|
|
|
|
|
|
/* Grab the addresses of the arguments from the stack frame. */
|
|
|
|
while (i < avn)
|
|
|
|
{
|
|
|
|
+ unsigned int elt, elnum;
|
|
|
|
+
|
|
|
|
switch (arg_types[i]->type)
|
|
|
|
{
|
|
|
|
case FFI_TYPE_SINT8:
|
|
|
|
case FFI_TYPE_UINT8:
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
avalue[i] = (char *) pst + 7;
|
|
|
|
pst++;
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_SINT16:
|
|
|
|
case FFI_TYPE_UINT16:
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
avalue[i] = (char *) pst + 6;
|
|
|
|
pst++;
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_SINT32:
|
|
|
|
case FFI_TYPE_UINT32:
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
avalue[i] = (char *) pst + 4;
|
|
|
|
pst++;
|
|
|
|
break;
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
case FFI_TYPE_SINT64:
|
|
|
|
case FFI_TYPE_UINT64:
|
2014-01-02 22:31:24 +01:00
|
|
|
case FFI_TYPE_POINTER:
|
|
|
|
avalue[i] = pst;
|
|
|
|
pst++;
|
2014-01-02 21:02:50 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_STRUCT:
|
|
|
|
- /* Structures with size less than eight bytes are passed
|
|
|
|
- left-padded. */
|
|
|
|
- if (arg_types[i]->size < 8)
|
|
|
|
- avalue[i] = (char *) pst + 8 - arg_types[i]->size;
|
|
|
|
+#ifdef __STRUCT_PARM_ALIGN__
|
|
|
|
+ align = arg_types[i]->alignment;
|
|
|
|
+ if (align > __STRUCT_PARM_ALIGN__)
|
|
|
|
+ align = __STRUCT_PARM_ALIGN__;
|
|
|
|
+ if (align > 1)
|
|
|
|
+ pst = (unsigned long *) ALIGN ((size_t) pst, align);
|
|
|
|
+#endif
|
|
|
|
+ elt = 0;
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+ elt = discover_homogeneous_aggregate (arg_types[i], &elnum);
|
|
|
|
+#endif
|
|
|
|
+ if (elt)
|
|
|
|
+ {
|
|
|
|
+ union {
|
|
|
|
+ void *v;
|
|
|
|
+ unsigned long *ul;
|
|
|
|
+ float *f;
|
|
|
|
+ double *d;
|
|
|
|
+ size_t p;
|
|
|
|
+ } to, from;
|
|
|
|
+
|
|
|
|
+ /* Repackage the aggregate from its parts. The
|
|
|
|
+ aggregate size is not greater than the space taken by
|
|
|
|
+ the registers so store back to the register/parameter
|
|
|
|
+ save arrays. */
|
|
|
|
+ if (pfr + elnum <= end_pfr)
|
|
|
|
+ to.v = pfr;
|
|
|
|
+ else
|
|
|
|
+ to.v = pst;
|
|
|
|
+
|
|
|
|
+ avalue[i] = to.v;
|
|
|
|
+ from.ul = pst;
|
|
|
|
+ if (elt == FFI_TYPE_FLOAT)
|
|
|
|
+ {
|
|
|
|
+ do
|
|
|
|
+ {
|
|
|
|
+ if (pfr < end_pfr && i < nfixedargs)
|
|
|
|
+ {
|
|
|
|
+ *to.f = (float) pfr->d;
|
|
|
|
+ pfr++;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ *to.f = *from.f;
|
|
|
|
+ to.f++;
|
|
|
|
+ from.f++;
|
|
|
|
+ }
|
|
|
|
+ while (--elnum != 0);
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ do
|
|
|
|
+ {
|
|
|
|
+ if (pfr < end_pfr && i < nfixedargs)
|
|
|
|
+ {
|
|
|
|
+ *to.d = pfr->d;
|
|
|
|
+ pfr++;
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ *to.d = *from.d;
|
|
|
|
+ to.d++;
|
|
|
|
+ from.d++;
|
|
|
|
+ }
|
|
|
|
+ while (--elnum != 0);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
else
|
|
|
|
- avalue[i] = pst;
|
|
|
|
+ {
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
+ /* Structures with size less than eight bytes are passed
|
|
|
|
+ left-padded. */
|
|
|
|
+ if (arg_types[i]->size < 8)
|
|
|
|
+ avalue[i] = (char *) pst + 8 - arg_types[i]->size;
|
|
|
|
+ else
|
|
|
|
+#endif
|
|
|
|
+ avalue[i] = pst;
|
|
|
|
+ }
|
|
|
|
pst += (arg_types[i]->size + 7) / 8;
|
|
|
|
break;
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
case FFI_TYPE_FLOAT:
|
|
|
|
/* unfortunately float values are stored as doubles
|
|
|
|
* in the ffi_closure_LINUX64 code (since we don't check
|
|
|
|
* the type in that routine).
|
|
|
|
*/
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
/* there are 13 64bit floating point registers */
|
|
|
|
|
|
|
|
- if (pfr < end_pfr)
|
|
|
|
+ if (pfr < end_pfr && i < nfixedargs)
|
|
|
|
{
|
|
|
|
double temp = pfr->d;
|
|
|
|
pfr->f = (float) temp;
|
2014-01-02 22:31:24 +01:00
|
|
|
avalue[i] = pfr;
|
|
|
|
pfr++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
avalue[i] = pst;
|
|
|
|
pst++;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case FFI_TYPE_DOUBLE:
|
2014-01-02 21:02:50 +01:00
|
|
|
/* On the outgoing stack all values are aligned to 8 */
|
|
|
|
/* there are 13 64bit floating point registers */
|
|
|
|
|
|
|
|
- if (pfr < end_pfr)
|
|
|
|
+ if (pfr < end_pfr && i < nfixedargs)
|
|
|
|
{
|
|
|
|
avalue[i] = pfr;
|
|
|
|
pfr++;
|
2014-01-02 22:31:24 +01:00
|
|
|
}
|
|
|
|
else
|
|
|
|
avalue[i] = pst;
|
|
|
|
pst++;
|
|
|
|
break;
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|
|
|
|
case FFI_TYPE_LONGDOUBLE:
|
|
|
|
- if (pfr + 1 < end_pfr)
|
|
|
|
+ if (pfr + 1 < end_pfr && i + 1 < nfixedargs)
|
|
|
|
{
|
|
|
|
avalue[i] = pfr;
|
|
|
|
pfr += 2;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
- if (pfr < end_pfr)
|
|
|
|
+ if (pfr < end_pfr && i < nfixedargs)
|
|
|
|
{
|
|
|
|
/* Passed partly in f13 and partly on the stack.
|
|
|
|
Move it all to the stack. */
|
2014-01-02 22:31:24 +01:00
|
|
|
*pst = *(unsigned long *) pfr;
|
|
|
|
pfr++;
|
|
|
|
}
|
|
|
|
avalue[i] = pst;
|
|
|
|
}
|
|
|
|
@@ -1433,10 +1787,19 @@ ffi_closure_helper_LINUX64 (ffi_closure
|
|
|
|
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
(closure->fun) (cif, rvalue, avalue, closure->user_data);
|
|
|
|
|
|
|
|
/* Tell ffi_closure_LINUX64 how to perform return type promotions. */
|
|
|
|
+ if ((cif->flags & FLAG_RETURNS_SMST) != 0)
|
|
|
|
+ {
|
|
|
|
+ if ((cif->flags & FLAG_RETURNS_FP) == 0)
|
|
|
|
+ return FFI_V2_TYPE_SMALL_STRUCT + cif->rtype->size - 1;
|
|
|
|
+ else if ((cif->flags & FLAG_RETURNS_64BITS) != 0)
|
|
|
|
+ return FFI_V2_TYPE_DOUBLE_HOMOG;
|
|
|
|
+ else
|
|
|
|
+ return FFI_V2_TYPE_FLOAT_HOMOG;
|
|
|
|
+ }
|
|
|
|
return cif->rtype->type;
|
|
|
|
}
|
2014-01-02 22:31:24 +01:00
|
|
|
diff --git a/js/src/ctypes/libffi/src/powerpc/ffitarget.h b/js/src/ctypes/libffi/src/powerpc/ffitarget.h
|
|
|
|
--- a/js/src/ctypes/libffi/src/powerpc/ffitarget.h
|
|
|
|
+++ b/js/src/ctypes/libffi/src/powerpc/ffitarget.h
|
|
|
|
@@ -1,11 +1,13 @@
|
2014-01-02 21:02:50 +01:00
|
|
|
/* -----------------------------------------------------------------*-C-*-
|
|
|
|
- ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
|
|
|
|
- Copyright (C) 2007, 2008 Free Software Foundation, Inc
|
|
|
|
+ ffitarget.h - Copyright (c) 2012 Anthony Green
|
|
|
|
+ Copyright (C) 2007, 2008, 2010 Free Software Foundation, Inc
|
|
|
|
+ Copyright (c) 1996-2003 Red Hat, Inc.
|
|
|
|
+
|
|
|
|
Target configuration macros for PowerPC.
|
|
|
|
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
2014-01-02 22:31:24 +01:00
|
|
|
a copy of this software and associated documentation files (the
|
|
|
|
``Software''), to deal in the Software without restriction, including
|
|
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
|
|
permit persons to whom the Software is furnished to do so, subject to
|
2014-03-18 20:44:32 +01:00
|
|
|
@@ -23,16 +25,20 @@
|
2014-01-02 22:31:24 +01:00
|
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
|
|
DEALINGS IN THE SOFTWARE.
|
|
|
|
|
|
|
|
----------------------------------------------------------------------- */
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
#ifndef LIBFFI_TARGET_H
|
|
|
|
#define LIBFFI_TARGET_H
|
|
|
|
|
|
|
|
+#ifndef LIBFFI_H
|
|
|
|
+#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
/* ---- System specific configurations ----------------------------------- */
|
|
|
|
|
|
|
|
#if defined (POWERPC) && defined (__powerpc64__) /* linux64 */
|
|
|
|
#ifndef POWERPC64
|
|
|
|
#define POWERPC64
|
|
|
|
#endif
|
2014-03-18 20:44:32 +01:00
|
|
|
#elif defined (POWERPC_DARWIN) && defined (__ppc64__) /* Darwin */
|
2014-01-02 21:02:50 +01:00
|
|
|
#ifndef POWERPC64
|
2014-03-18 20:44:32 +01:00
|
|
|
@@ -52,28 +58,24 @@ typedef enum ffi_abi {
|
2014-01-02 22:31:24 +01:00
|
|
|
FFI_FIRST_ABI = 0,
|
|
|
|
|
|
|
|
#ifdef POWERPC
|
|
|
|
FFI_SYSV,
|
|
|
|
FFI_GCC_SYSV,
|
2014-01-02 21:02:50 +01:00
|
|
|
FFI_LINUX64,
|
|
|
|
FFI_LINUX,
|
|
|
|
FFI_LINUX_SOFT_FLOAT,
|
|
|
|
-# ifdef POWERPC64
|
|
|
|
+# if defined(POWERPC64)
|
|
|
|
FFI_DEFAULT_ABI = FFI_LINUX64,
|
2014-01-02 22:31:24 +01:00
|
|
|
+# elif defined(__NO_FPRS__)
|
|
|
|
+ FFI_DEFAULT_ABI = FFI_LINUX_SOFT_FLOAT,
|
|
|
|
+# elif (__LDBL_MANT_DIG__ == 106)
|
|
|
|
+ FFI_DEFAULT_ABI = FFI_LINUX,
|
|
|
|
# else
|
2014-01-02 21:02:50 +01:00
|
|
|
-# if (!defined(__NO_FPRS__) && (__LDBL_MANT_DIG__ == 106))
|
|
|
|
- FFI_DEFAULT_ABI = FFI_LINUX,
|
|
|
|
-# else
|
|
|
|
-# ifdef __NO_FPRS__
|
2014-01-02 22:31:24 +01:00
|
|
|
- FFI_DEFAULT_ABI = FFI_LINUX_SOFT_FLOAT,
|
2014-01-02 21:02:50 +01:00
|
|
|
-# else
|
|
|
|
FFI_DEFAULT_ABI = FFI_GCC_SYSV,
|
|
|
|
-# endif
|
|
|
|
-# endif
|
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
#ifdef POWERPC_AIX
|
|
|
|
FFI_AIX,
|
|
|
|
FFI_DARWIN,
|
|
|
|
FFI_DEFAULT_ABI = FFI_AIX,
|
|
|
|
#endif
|
2014-03-18 20:44:32 +01:00
|
|
|
@@ -96,32 +98,45 @@ typedef enum ffi_abi {
|
2014-01-02 22:31:24 +01:00
|
|
|
FFI_LAST_ABI
|
|
|
|
} ffi_abi;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* ---- Definitions for closures ----------------------------------------- */
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
#define FFI_CLOSURES 1
|
|
|
|
#define FFI_NATIVE_RAW_API 0
|
|
|
|
+#if defined (POWERPC) || defined (POWERPC_FREEBSD)
|
|
|
|
+# define FFI_TARGET_SPECIFIC_VARIADIC 1
|
|
|
|
+# define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
/* For additional types like the below, take care about the order in
|
|
|
|
ppc_closures.S. They must follow after the FFI_TYPE_LAST. */
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
/* Needed for soft-float long-double-128 support. */
|
|
|
|
#define FFI_TYPE_UINT128 (FFI_TYPE_LAST + 1)
|
|
|
|
|
|
|
|
/* Needed for FFI_SYSV small structure returns.
|
|
|
|
We use two flag bits, (FLAG_SYSV_SMST_R3, FLAG_SYSV_SMST_R4) which are
|
2014-01-02 21:02:50 +01:00
|
|
|
defined in ffi.c, to determine the exact return type and its size. */
|
|
|
|
#define FFI_SYSV_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 2)
|
|
|
|
|
|
|
|
-#if defined(POWERPC64) || defined(POWERPC_AIX)
|
|
|
|
-#define FFI_TRAMPOLINE_SIZE 24
|
|
|
|
-#else /* POWERPC || POWERPC_AIX */
|
|
|
|
-#define FFI_TRAMPOLINE_SIZE 40
|
|
|
|
+/* Used by ELFv2 for homogenous structure returns. */
|
|
|
|
+#define FFI_V2_TYPE_FLOAT_HOMOG (FFI_TYPE_LAST + 1)
|
|
|
|
+#define FFI_V2_TYPE_DOUBLE_HOMOG (FFI_TYPE_LAST + 2)
|
|
|
|
+#define FFI_V2_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 3)
|
|
|
|
+
|
|
|
|
+#if _CALL_ELF == 2
|
|
|
|
+# define FFI_TRAMPOLINE_SIZE 32
|
|
|
|
+#else
|
|
|
|
+# if defined(POWERPC64) || defined(POWERPC_AIX)
|
2014-03-18 20:44:32 +01:00
|
|
|
+# define FFI_TRAMPOLINE_SIZE 24
|
2014-01-02 21:02:50 +01:00
|
|
|
+# else /* POWERPC || POWERPC_AIX */
|
|
|
|
+# define FFI_TRAMPOLINE_SIZE 40
|
|
|
|
+# endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef LIBFFI_ASM
|
2014-01-02 22:31:24 +01:00
|
|
|
#if defined(POWERPC_DARWIN) || defined(POWERPC_AIX)
|
|
|
|
struct ffi_aix_trampoline_struct {
|
|
|
|
void * code_pointer; /* Pointer to ffi_closure_ASM */
|
|
|
|
void * toc; /* TOC */
|
|
|
|
void * static_chain; /* Pointer to closure */
|
|
|
|
diff --git a/js/src/ctypes/libffi/src/powerpc/linux64.S b/js/src/ctypes/libffi/src/powerpc/linux64.S
|
|
|
|
--- a/js/src/ctypes/libffi/src/powerpc/linux64.S
|
|
|
|
+++ b/js/src/ctypes/libffi/src/powerpc/linux64.S
|
|
|
|
@@ -25,56 +25,86 @@
|
|
|
|
DEALINGS IN THE SOFTWARE.
|
|
|
|
----------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
#define LIBFFI_ASM
|
|
|
|
#include <fficonfig.h>
|
|
|
|
#include <ffi.h>
|
|
|
|
|
|
|
|
#ifdef __powerpc64__
|
|
|
|
- .hidden ffi_call_LINUX64, .ffi_call_LINUX64
|
|
|
|
- .globl ffi_call_LINUX64, .ffi_call_LINUX64
|
|
|
|
+ .hidden ffi_call_LINUX64
|
|
|
|
+ .globl ffi_call_LINUX64
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ .text
|
|
|
|
+ffi_call_LINUX64:
|
|
|
|
+ addis %r2, %r12, .TOC.-ffi_call_LINUX64@ha
|
|
|
|
+ addi %r2, %r2, .TOC.-ffi_call_LINUX64@l
|
|
|
|
+ .localentry ffi_call_LINUX64, . - ffi_call_LINUX64
|
|
|
|
+# else
|
|
|
|
.section ".opd","aw"
|
|
|
|
.align 3
|
|
|
|
ffi_call_LINUX64:
|
|
|
|
+# ifdef _CALL_LINUX
|
|
|
|
+ .quad .L.ffi_call_LINUX64,.TOC.@tocbase,0
|
|
|
|
+ .type ffi_call_LINUX64,@function
|
|
|
|
+ .text
|
|
|
|
+.L.ffi_call_LINUX64:
|
|
|
|
+# else
|
|
|
|
+ .hidden .ffi_call_LINUX64
|
|
|
|
+ .globl .ffi_call_LINUX64
|
|
|
|
.quad .ffi_call_LINUX64,.TOC.@tocbase,0
|
|
|
|
.size ffi_call_LINUX64,24
|
|
|
|
.type .ffi_call_LINUX64,@function
|
|
|
|
.text
|
|
|
|
.ffi_call_LINUX64:
|
|
|
|
+# endif
|
|
|
|
+# endif
|
|
|
|
.LFB1:
|
|
|
|
mflr %r0
|
|
|
|
std %r28, -32(%r1)
|
|
|
|
std %r29, -24(%r1)
|
|
|
|
std %r30, -16(%r1)
|
|
|
|
std %r31, -8(%r1)
|
|
|
|
std %r0, 16(%r1)
|
|
|
|
|
|
|
|
mr %r28, %r1 /* our AP. */
|
|
|
|
.LCFI0:
|
|
|
|
stdux %r1, %r1, %r4
|
|
|
|
mr %r31, %r5 /* flags, */
|
|
|
|
mr %r30, %r6 /* rvalue, */
|
|
|
|
mr %r29, %r7 /* function address. */
|
|
|
|
+/* Save toc pointer, not for the ffi_prep_args64 call, but for the later
|
|
|
|
+ bctrl function call. */
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ std %r2, 24(%r1)
|
|
|
|
+# else
|
|
|
|
std %r2, 40(%r1)
|
|
|
|
+# endif
|
|
|
|
|
|
|
|
/* Call ffi_prep_args64. */
|
|
|
|
mr %r4, %r1
|
|
|
|
+# if defined _CALL_LINUX || _CALL_ELF == 2
|
|
|
|
+ bl ffi_prep_args64
|
|
|
|
+# else
|
|
|
|
bl .ffi_prep_args64
|
|
|
|
+# endif
|
|
|
|
|
|
|
|
- ld %r0, 0(%r29)
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ mr %r12, %r29
|
|
|
|
+# else
|
|
|
|
+ ld %r12, 0(%r29)
|
|
|
|
ld %r2, 8(%r29)
|
|
|
|
ld %r11, 16(%r29)
|
|
|
|
-
|
|
|
|
+# endif
|
|
|
|
/* Now do the call. */
|
|
|
|
/* Set up cr1 with bits 4-7 of the flags. */
|
|
|
|
mtcrf 0x40, %r31
|
|
|
|
|
|
|
|
/* Get the address to call into CTR. */
|
|
|
|
- mtctr %r0
|
|
|
|
+ mtctr %r12
|
|
|
|
/* Load all those argument registers. */
|
|
|
|
ld %r3, -32-(8*8)(%r28)
|
|
|
|
ld %r4, -32-(7*8)(%r28)
|
|
|
|
ld %r5, -32-(6*8)(%r28)
|
|
|
|
ld %r6, -32-(5*8)(%r28)
|
|
|
|
bf- 5, 1f
|
|
|
|
ld %r7, -32-(4*8)(%r28)
|
|
|
|
ld %r8, -32-(3*8)(%r28)
|
|
|
|
@@ -99,50 +129,93 @@ 1:
|
|
|
|
lfd %f13, -32-(9*8)(%r28)
|
|
|
|
2:
|
|
|
|
|
|
|
|
/* Make the call. */
|
|
|
|
bctrl
|
|
|
|
|
|
|
|
/* This must follow the call immediately, the unwinder
|
|
|
|
uses this to find out if r2 has been saved or not. */
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ ld %r2, 24(%r1)
|
|
|
|
+# else
|
|
|
|
ld %r2, 40(%r1)
|
|
|
|
+# endif
|
|
|
|
|
|
|
|
/* Now, deal with the return value. */
|
|
|
|
mtcrf 0x01, %r31
|
|
|
|
- bt- 30, .Ldone_return_value
|
|
|
|
- bt- 29, .Lfp_return_value
|
|
|
|
+ bt 31, .Lstruct_return_value
|
|
|
|
+ bt 30, .Ldone_return_value
|
|
|
|
+ bt 29, .Lfp_return_value
|
|
|
|
std %r3, 0(%r30)
|
|
|
|
/* Fall through... */
|
|
|
|
|
|
|
|
.Ldone_return_value:
|
|
|
|
/* Restore the registers we used and return. */
|
|
|
|
mr %r1, %r28
|
|
|
|
ld %r0, 16(%r28)
|
|
|
|
- ld %r28, -32(%r1)
|
|
|
|
+ ld %r28, -32(%r28)
|
|
|
|
mtlr %r0
|
|
|
|
ld %r29, -24(%r1)
|
|
|
|
ld %r30, -16(%r1)
|
|
|
|
ld %r31, -8(%r1)
|
|
|
|
blr
|
|
|
|
|
|
|
|
.Lfp_return_value:
|
|
|
|
bf 28, .Lfloat_return_value
|
|
|
|
stfd %f1, 0(%r30)
|
|
|
|
mtcrf 0x02, %r31 /* cr6 */
|
|
|
|
bf 27, .Ldone_return_value
|
|
|
|
stfd %f2, 8(%r30)
|
|
|
|
b .Ldone_return_value
|
|
|
|
.Lfloat_return_value:
|
|
|
|
stfs %f1, 0(%r30)
|
|
|
|
b .Ldone_return_value
|
|
|
|
+
|
|
|
|
+.Lstruct_return_value:
|
|
|
|
+ bf 29, .Lsmall_struct
|
|
|
|
+ bf 28, .Lfloat_homog_return_value
|
|
|
|
+ stfd %f1, 0(%r30)
|
|
|
|
+ stfd %f2, 8(%r30)
|
|
|
|
+ stfd %f3, 16(%r30)
|
|
|
|
+ stfd %f4, 24(%r30)
|
|
|
|
+ stfd %f5, 32(%r30)
|
|
|
|
+ stfd %f6, 40(%r30)
|
|
|
|
+ stfd %f7, 48(%r30)
|
|
|
|
+ stfd %f8, 56(%r30)
|
|
|
|
+ b .Ldone_return_value
|
|
|
|
+
|
|
|
|
+.Lfloat_homog_return_value:
|
|
|
|
+ stfs %f1, 0(%r30)
|
|
|
|
+ stfs %f2, 4(%r30)
|
|
|
|
+ stfs %f3, 8(%r30)
|
|
|
|
+ stfs %f4, 12(%r30)
|
|
|
|
+ stfs %f5, 16(%r30)
|
|
|
|
+ stfs %f6, 20(%r30)
|
|
|
|
+ stfs %f7, 24(%r30)
|
|
|
|
+ stfs %f8, 28(%r30)
|
|
|
|
+ b .Ldone_return_value
|
|
|
|
+
|
|
|
|
+.Lsmall_struct:
|
|
|
|
+ std %r3, 0(%r30)
|
|
|
|
+ std %r4, 8(%r30)
|
|
|
|
+ b .Ldone_return_value
|
|
|
|
+
|
|
|
|
.LFE1:
|
|
|
|
.long 0
|
|
|
|
.byte 0,12,0,1,128,4,0,0
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ .size ffi_call_LINUX64,.-ffi_call_LINUX64
|
|
|
|
+# else
|
|
|
|
+# ifdef _CALL_LINUX
|
|
|
|
+ .size ffi_call_LINUX64,.-.L.ffi_call_LINUX64
|
|
|
|
+# else
|
|
|
|
.size .ffi_call_LINUX64,.-.ffi_call_LINUX64
|
|
|
|
+# endif
|
|
|
|
+# endif
|
|
|
|
|
|
|
|
.section .eh_frame,EH_FRAME_FLAGS,@progbits
|
|
|
|
.Lframe1:
|
|
|
|
.4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
|
|
|
|
.LSCIE1:
|
|
|
|
.4byte 0x0 # CIE Identifier Tag
|
|
|
|
.byte 0x1 # CIE Version
|
|
|
|
.ascii "zR\0" # CIE Augmentation
|
|
|
|
@@ -175,13 +248,13 @@ 2:
|
|
|
|
.byte 0x9e # DW_CFA_offset, column 0x1e
|
|
|
|
.uleb128 0x2
|
|
|
|
.byte 0x9d # DW_CFA_offset, column 0x1d
|
|
|
|
.uleb128 0x3
|
|
|
|
.byte 0x9c # DW_CFA_offset, column 0x1c
|
|
|
|
.uleb128 0x4
|
|
|
|
.align 3
|
|
|
|
.LEFDE1:
|
|
|
|
+
|
|
|
|
+# if (defined __ELF__ && defined __linux__) || _CALL_ELF == 2
|
|
|
|
+ .section .note.GNU-stack,"",@progbits
|
|
|
|
+# endif
|
|
|
|
#endif
|
|
|
|
-
|
|
|
|
-#if defined __ELF__ && defined __linux__
|
|
|
|
- .section .note.GNU-stack,"",@progbits
|
|
|
|
-#endif
|
|
|
|
diff --git a/js/src/ctypes/libffi/src/powerpc/linux64_closure.S b/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
|
|
|
|
--- a/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
|
|
|
|
+++ b/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
|
2014-03-18 20:44:32 +01:00
|
|
|
@@ -27,179 +27,330 @@
|
2014-01-02 22:31:24 +01:00
|
|
|
#define LIBFFI_ASM
|
|
|
|
#include <fficonfig.h>
|
|
|
|
#include <ffi.h>
|
|
|
|
|
|
|
|
.file "linux64_closure.S"
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
#ifdef __powerpc64__
|
|
|
|
FFI_HIDDEN (ffi_closure_LINUX64)
|
|
|
|
- FFI_HIDDEN (.ffi_closure_LINUX64)
|
|
|
|
- .globl ffi_closure_LINUX64, .ffi_closure_LINUX64
|
|
|
|
+ .globl ffi_closure_LINUX64
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ .text
|
|
|
|
+ffi_closure_LINUX64:
|
|
|
|
+ addis %r2, %r12, .TOC.-ffi_closure_LINUX64@ha
|
|
|
|
+ addi %r2, %r2, .TOC.-ffi_closure_LINUX64@l
|
|
|
|
+ .localentry ffi_closure_LINUX64, . - ffi_closure_LINUX64
|
|
|
|
+# else
|
|
|
|
.section ".opd","aw"
|
|
|
|
.align 3
|
|
|
|
ffi_closure_LINUX64:
|
|
|
|
+# ifdef _CALL_LINUX
|
|
|
|
+ .quad .L.ffi_closure_LINUX64,.TOC.@tocbase,0
|
|
|
|
+ .type ffi_closure_LINUX64,@function
|
|
|
|
+ .text
|
|
|
|
+.L.ffi_closure_LINUX64:
|
|
|
|
+# else
|
|
|
|
+ FFI_HIDDEN (.ffi_closure_LINUX64)
|
|
|
|
+ .globl .ffi_closure_LINUX64
|
|
|
|
.quad .ffi_closure_LINUX64,.TOC.@tocbase,0
|
|
|
|
.size ffi_closure_LINUX64,24
|
|
|
|
.type .ffi_closure_LINUX64,@function
|
|
|
|
.text
|
|
|
|
.ffi_closure_LINUX64:
|
|
|
|
+# endif
|
|
|
|
+# endif
|
|
|
|
+
|
|
|
|
+# if _CALL_ELF == 2
|
2014-03-18 20:44:32 +01:00
|
|
|
+# 32 byte special reg save area + 64 byte parm save area
|
|
|
|
+# + 64 byte retval area + 13*8 fpr save area + round to 16
|
|
|
|
+# define STACKFRAME 272
|
2014-01-02 21:02:50 +01:00
|
|
|
+# define PARMSAVE 32
|
2014-03-18 20:44:32 +01:00
|
|
|
+# define RETVAL PARMSAVE+64
|
2014-01-02 21:02:50 +01:00
|
|
|
+# else
|
|
|
|
+# 48 bytes special reg save area + 64 bytes parm save area
|
|
|
|
+# + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
|
|
|
|
+# define STACKFRAME 240
|
|
|
|
+# define PARMSAVE 48
|
|
|
|
+# define RETVAL PARMSAVE+64
|
|
|
|
+# endif
|
|
|
|
+
|
|
|
|
.LFB1:
|
|
|
|
- # save general regs into parm save area
|
|
|
|
- std %r3, 48(%r1)
|
|
|
|
- std %r4, 56(%r1)
|
|
|
|
- std %r5, 64(%r1)
|
|
|
|
- std %r6, 72(%r1)
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ ld %r12, FFI_TRAMPOLINE_SIZE(%r11) # closure->cif
|
2014-01-02 22:31:24 +01:00
|
|
|
mflr %r0
|
2014-01-02 21:02:50 +01:00
|
|
|
+ lwz %r12, 28(%r12) # cif->flags
|
|
|
|
+ mtcrf 0x40, %r12
|
|
|
|
+ addi %r12, %r1, PARMSAVE
|
|
|
|
+ bt 7, .Lparmsave
|
|
|
|
+ # Our caller has not allocated a parameter save area.
|
|
|
|
+ # We need to allocate one here and use it to pass gprs to
|
2014-03-18 20:44:32 +01:00
|
|
|
+ # ffi_closure_helper_LINUX64.
|
|
|
|
+ addi %r12, %r1, -STACKFRAME+PARMSAVE
|
2014-01-02 21:02:50 +01:00
|
|
|
+.Lparmsave:
|
|
|
|
+ std %r0, 16(%r1)
|
|
|
|
+ # Save general regs into parm save area
|
|
|
|
+ std %r3, 0(%r12)
|
|
|
|
+ std %r4, 8(%r12)
|
|
|
|
+ std %r5, 16(%r12)
|
|
|
|
+ std %r6, 24(%r12)
|
|
|
|
+ std %r7, 32(%r12)
|
|
|
|
+ std %r8, 40(%r12)
|
|
|
|
+ std %r9, 48(%r12)
|
|
|
|
+ std %r10, 56(%r12)
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
- std %r7, 80(%r1)
|
|
|
|
- std %r8, 88(%r1)
|
|
|
|
- std %r9, 96(%r1)
|
|
|
|
- std %r10, 104(%r1)
|
|
|
|
+ # load up the pointer to the parm save area
|
2014-01-02 21:02:50 +01:00
|
|
|
+ mr %r5, %r12
|
|
|
|
+# else
|
2014-01-02 22:31:24 +01:00
|
|
|
+ mflr %r0
|
2014-01-02 21:02:50 +01:00
|
|
|
+ # Save general regs into parm save area
|
|
|
|
+ # This is the parameter save area set up by our caller.
|
|
|
|
+ std %r3, PARMSAVE+0(%r1)
|
|
|
|
+ std %r4, PARMSAVE+8(%r1)
|
|
|
|
+ std %r5, PARMSAVE+16(%r1)
|
|
|
|
+ std %r6, PARMSAVE+24(%r1)
|
|
|
|
+ std %r7, PARMSAVE+32(%r1)
|
|
|
|
+ std %r8, PARMSAVE+40(%r1)
|
|
|
|
+ std %r9, PARMSAVE+48(%r1)
|
|
|
|
+ std %r10, PARMSAVE+56(%r1)
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
2014-01-02 21:02:50 +01:00
|
|
|
std %r0, 16(%r1)
|
|
|
|
|
|
|
|
- # mandatory 48 bytes special reg save area + 64 bytes parm save area
|
|
|
|
- # + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
|
|
|
|
- stdu %r1, -240(%r1)
|
|
|
|
+ # load up the pointer to the parm save area
|
|
|
|
+ addi %r5, %r1, PARMSAVE
|
|
|
|
+# endif
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
|
|
|
+ # next save fpr 1 to fpr 13
|
2014-01-02 21:02:50 +01:00
|
|
|
+ stfd %f1, -104+(0*8)(%r1)
|
|
|
|
+ stfd %f2, -104+(1*8)(%r1)
|
|
|
|
+ stfd %f3, -104+(2*8)(%r1)
|
|
|
|
+ stfd %f4, -104+(3*8)(%r1)
|
|
|
|
+ stfd %f5, -104+(4*8)(%r1)
|
|
|
|
+ stfd %f6, -104+(5*8)(%r1)
|
|
|
|
+ stfd %f7, -104+(6*8)(%r1)
|
|
|
|
+ stfd %f8, -104+(7*8)(%r1)
|
|
|
|
+ stfd %f9, -104+(8*8)(%r1)
|
|
|
|
+ stfd %f10, -104+(9*8)(%r1)
|
|
|
|
+ stfd %f11, -104+(10*8)(%r1)
|
|
|
|
+ stfd %f12, -104+(11*8)(%r1)
|
|
|
|
+ stfd %f13, -104+(12*8)(%r1)
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
2014-01-02 21:02:50 +01:00
|
|
|
+ # load up the pointer to the saved fpr registers */
|
|
|
|
+ addi %r6, %r1, -104
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
2014-01-02 21:02:50 +01:00
|
|
|
+ # load up the pointer to the result storage
|
|
|
|
+ addi %r4, %r1, -STACKFRAME+RETVAL
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
|
|
|
+ stdu %r1, -STACKFRAME(%r1)
|
|
|
|
.LCFI0:
|
2014-01-02 21:02:50 +01:00
|
|
|
|
2014-01-02 22:31:24 +01:00
|
|
|
- # next save fpr 1 to fpr 13
|
|
|
|
- stfd %f1, 128+(0*8)(%r1)
|
|
|
|
- stfd %f2, 128+(1*8)(%r1)
|
|
|
|
- stfd %f3, 128+(2*8)(%r1)
|
|
|
|
- stfd %f4, 128+(3*8)(%r1)
|
|
|
|
- stfd %f5, 128+(4*8)(%r1)
|
|
|
|
- stfd %f6, 128+(5*8)(%r1)
|
|
|
|
- stfd %f7, 128+(6*8)(%r1)
|
|
|
|
- stfd %f8, 128+(7*8)(%r1)
|
|
|
|
- stfd %f9, 128+(8*8)(%r1)
|
|
|
|
- stfd %f10, 128+(9*8)(%r1)
|
|
|
|
- stfd %f11, 128+(10*8)(%r1)
|
|
|
|
- stfd %f12, 128+(11*8)(%r1)
|
|
|
|
- stfd %f13, 128+(12*8)(%r1)
|
|
|
|
-
|
|
|
|
- # set up registers for the routine that actually does the work
|
|
|
|
# get the context pointer from the trampoline
|
|
|
|
- mr %r3, %r11
|
|
|
|
-
|
|
|
|
- # now load up the pointer to the result storage
|
|
|
|
- addi %r4, %r1, 112
|
|
|
|
-
|
2014-01-02 21:02:50 +01:00
|
|
|
- # now load up the pointer to the parameter save area
|
|
|
|
- # in the previous frame
|
|
|
|
- addi %r5, %r1, 240 + 48
|
2014-01-02 22:31:24 +01:00
|
|
|
-
|
2014-01-02 21:02:50 +01:00
|
|
|
- # now load up the pointer to the saved fpr registers */
|
|
|
|
- addi %r6, %r1, 128
|
|
|
|
+ mr %r3, %r11
|
|
|
|
|
|
|
|
# make the call
|
|
|
|
+# if defined _CALL_LINUX || _CALL_ELF == 2
|
|
|
|
+ bl ffi_closure_helper_LINUX64
|
|
|
|
+# else
|
|
|
|
bl .ffi_closure_helper_LINUX64
|
|
|
|
+# endif
|
|
|
|
.Lret:
|
|
|
|
|
|
|
|
# now r3 contains the return type
|
2014-01-02 22:31:24 +01:00
|
|
|
# so use it to look up in a table
|
|
|
|
# so we know how to deal with each type
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
# look up the proper starting point in table
|
|
|
|
# by using return type as offset
|
|
|
|
+ ld %r0, STACKFRAME+16(%r1)
|
|
|
|
+ cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT
|
|
|
|
+ bge .Lsmall
|
|
|
|
mflr %r4 # move address of .Lret to r4
|
|
|
|
sldi %r3, %r3, 4 # now multiply return type by 16
|
|
|
|
addi %r4, %r4, .Lret_type0 - .Lret
|
|
|
|
- ld %r0, 240+16(%r1)
|
|
|
|
add %r3, %r3, %r4 # add contents of table to table address
|
|
|
|
mtctr %r3
|
|
|
|
bctr # jump to it
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
# Each of the ret_typeX code fragments has to be exactly 16 bytes long
|
|
|
|
# (4 instructions). For cache effectiveness we align to a 16 byte boundary
|
|
|
|
# first.
|
|
|
|
.align 4
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
.Lret_type0:
|
|
|
|
# case FFI_TYPE_VOID
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
nop
|
|
|
|
# case FFI_TYPE_INT
|
|
|
|
- lwa %r3, 112+4(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lwa %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lwa %r3, RETVAL+4(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_FLOAT
|
|
|
|
- lfs %f1, 112+0(%r1)
|
|
|
|
+ lfs %f1, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_DOUBLE
|
|
|
|
- lfd %f1, 112+0(%r1)
|
|
|
|
+ lfd %f1, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_LONGDOUBLE
|
|
|
|
- lfd %f1, 112+0(%r1)
|
|
|
|
+ lfd %f1, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- lfd %f2, 112+8(%r1)
|
|
|
|
+ lfd %f2, RETVAL+8(%r1)
|
|
|
|
b .Lfinish
|
|
|
|
# case FFI_TYPE_UINT8
|
|
|
|
- lbz %r3, 112+7(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lbz %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lbz %r3, RETVAL+7(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_SINT8
|
|
|
|
- lbz %r3, 112+7(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lbz %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lbz %r3, RETVAL+7(%r1)
|
|
|
|
+# endif
|
|
|
|
extsb %r3,%r3
|
|
|
|
mtlr %r0
|
|
|
|
b .Lfinish
|
|
|
|
# case FFI_TYPE_UINT16
|
|
|
|
- lhz %r3, 112+6(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lhz %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lhz %r3, RETVAL+6(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
.Lfinish:
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_SINT16
|
|
|
|
- lha %r3, 112+6(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lha %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lha %r3, RETVAL+6(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_UINT32
|
|
|
|
- lwz %r3, 112+4(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lwz %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lwz %r3, RETVAL+4(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_SINT32
|
|
|
|
- lwa %r3, 112+4(%r1)
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lwa %r3, RETVAL+0(%r1)
|
|
|
|
+# else
|
|
|
|
+ lwa %r3, RETVAL+4(%r1)
|
|
|
|
+# endif
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_UINT64
|
|
|
|
- ld %r3, 112+0(%r1)
|
|
|
|
+ ld %r3, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_SINT64
|
|
|
|
- ld %r3, 112+0(%r1)
|
|
|
|
+ ld %r3, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
# case FFI_TYPE_STRUCT
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
blr
|
|
|
|
nop
|
|
|
|
# case FFI_TYPE_POINTER
|
|
|
|
- ld %r3, 112+0(%r1)
|
|
|
|
+ ld %r3, RETVAL+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
- addi %r1, %r1, 240
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
2014-01-02 22:31:24 +01:00
|
|
|
blr
|
|
|
|
-# esac
|
2014-01-02 21:02:50 +01:00
|
|
|
+# case FFI_V2_TYPE_FLOAT_HOMOG
|
|
|
|
+ lfs %f1, RETVAL+0(%r1)
|
|
|
|
+ lfs %f2, RETVAL+4(%r1)
|
|
|
|
+ lfs %f3, RETVAL+8(%r1)
|
|
|
|
+ b .Lmorefloat
|
|
|
|
+# case FFI_V2_TYPE_DOUBLE_HOMOG
|
|
|
|
+ lfd %f1, RETVAL+0(%r1)
|
|
|
|
+ lfd %f2, RETVAL+8(%r1)
|
|
|
|
+ lfd %f3, RETVAL+16(%r1)
|
|
|
|
+ lfd %f4, RETVAL+24(%r1)
|
|
|
|
+ mtlr %r0
|
|
|
|
+ lfd %f5, RETVAL+32(%r1)
|
|
|
|
+ lfd %f6, RETVAL+40(%r1)
|
|
|
|
+ lfd %f7, RETVAL+48(%r1)
|
|
|
|
+ lfd %f8, RETVAL+56(%r1)
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
+ blr
|
|
|
|
+.Lmorefloat:
|
|
|
|
+ lfs %f4, RETVAL+12(%r1)
|
|
|
|
+ mtlr %r0
|
|
|
|
+ lfs %f5, RETVAL+16(%r1)
|
|
|
|
+ lfs %f6, RETVAL+20(%r1)
|
|
|
|
+ lfs %f7, RETVAL+24(%r1)
|
|
|
|
+ lfs %f8, RETVAL+28(%r1)
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
+ blr
|
|
|
|
+.Lsmall:
|
|
|
|
+# ifdef __LITTLE_ENDIAN__
|
|
|
|
+ ld %r3,RETVAL+0(%r1)
|
|
|
|
+ mtlr %r0
|
|
|
|
+ ld %r4,RETVAL+8(%r1)
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
+ blr
|
|
|
|
+# else
|
|
|
|
+ # A struct smaller than a dword is returned in the low bits of r3
|
|
|
|
+ # ie. right justified. Larger structs are passed left justified
|
|
|
|
+ # in r3 and r4. The return value area on the stack will have
|
|
|
|
+ # the structs as they are usually stored in memory.
|
|
|
|
+ cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT + 7 # size 8 bytes?
|
|
|
|
+ neg %r5, %r3
|
|
|
|
+ ld %r3,RETVAL+0(%r1)
|
|
|
|
+ blt .Lsmalldown
|
|
|
|
+ mtlr %r0
|
|
|
|
+ ld %r4,RETVAL+8(%r1)
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
+ blr
|
|
|
|
+.Lsmalldown:
|
|
|
|
+ addi %r5, %r5, FFI_V2_TYPE_SMALL_STRUCT + 7
|
|
|
|
+ mtlr %r0
|
|
|
|
+ sldi %r5, %r5, 3
|
|
|
|
+ addi %r1, %r1, STACKFRAME
|
|
|
|
+ srd %r3, %r3, %r5
|
2014-01-02 22:31:24 +01:00
|
|
|
+ blr
|
2014-01-02 21:02:50 +01:00
|
|
|
+# endif
|
|
|
|
+
|
|
|
|
.LFE1:
|
|
|
|
.long 0
|
|
|
|
.byte 0,12,0,1,128,0,0,0
|
|
|
|
+# if _CALL_ELF == 2
|
|
|
|
+ .size ffi_closure_LINUX64,.-ffi_closure_LINUX64
|
|
|
|
+# else
|
|
|
|
+# ifdef _CALL_LINUX
|
|
|
|
+ .size ffi_closure_LINUX64,.-.L.ffi_closure_LINUX64
|
|
|
|
+# else
|
|
|
|
.size .ffi_closure_LINUX64,.-.ffi_closure_LINUX64
|
|
|
|
+# endif
|
|
|
|
+# endif
|
|
|
|
|
|
|
|
.section .eh_frame,EH_FRAME_FLAGS,@progbits
|
|
|
|
.Lframe1:
|
2014-01-02 22:31:24 +01:00
|
|
|
.4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
|
|
|
|
.LSCIE1:
|
|
|
|
.4byte 0x0 # CIE Identifier Tag
|
|
|
|
.byte 0x1 # CIE Version
|
|
|
|
.ascii "zR\0" # CIE Augmentation
|
2014-03-18 20:44:32 +01:00
|
|
|
@@ -218,19 +369,19 @@ ffi_closure_LINUX64:
|
2014-01-02 22:31:24 +01:00
|
|
|
.LASFDE1:
|
|
|
|
.4byte .LASFDE1-.Lframe1 # FDE CIE offset
|
|
|
|
.8byte .LFB1-. # FDE initial location
|
|
|
|
.8byte .LFE1-.LFB1 # FDE address range
|
|
|
|
.uleb128 0x0 # Augmentation size
|
2014-01-02 21:02:50 +01:00
|
|
|
.byte 0x2 # DW_CFA_advance_loc1
|
|
|
|
.byte .LCFI0-.LFB1
|
|
|
|
.byte 0xe # DW_CFA_def_cfa_offset
|
|
|
|
- .uleb128 240
|
|
|
|
+ .uleb128 STACKFRAME
|
|
|
|
.byte 0x11 # DW_CFA_offset_extended_sf
|
|
|
|
.uleb128 0x41
|
|
|
|
.sleb128 -2
|
|
|
|
.align 3
|
|
|
|
.LEFDE1:
|
2014-01-02 22:31:24 +01:00
|
|
|
+
|
2014-01-02 21:02:50 +01:00
|
|
|
+# if defined __ELF__ && defined __linux__
|
2014-01-02 22:31:24 +01:00
|
|
|
+ .section .note.GNU-stack,"",@progbits
|
2014-01-02 21:02:50 +01:00
|
|
|
+# endif
|
|
|
|
#endif
|
|
|
|
-
|
|
|
|
-#if defined __ELF__ && defined __linux__
|
2014-01-02 22:31:24 +01:00
|
|
|
- .section .note.GNU-stack,"",@progbits
|
|
|
|
-#endif
|
|
|
|
diff --git a/js/src/ctypes/libffi/src/powerpc/ppc_closure.S b/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
|
|
|
|
--- a/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
|
|
|
|
+++ b/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
|
|
|
|
@@ -117,53 +117,88 @@ ENTRY(ffi_closure_SYSV)
|
|
|
|
# case FFI_TYPE_INT
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
.Lfinish:
|
|
|
|
addi %r1,%r1,144
|
2014-01-02 21:02:50 +01:00
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_FLOAT
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
lfs %f1,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
+#else
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+#endif
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_DOUBLE
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
lfd %f1,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
+#else
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+#endif
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_LONGDOUBLE
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
lfd %f1,112+0(%r1)
|
|
|
|
lfd %f2,112+8(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
b .Lfinish
|
|
|
|
+#else
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+ nop
|
|
|
|
+ blr
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
# case FFI_TYPE_UINT8
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lbz %r3,112+0(%r1)
|
|
|
|
+#else
|
|
|
|
lbz %r3,112+3(%r1)
|
|
|
|
+#endif
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_SINT8
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lbz %r3,112+0(%r1)
|
|
|
|
+#else
|
|
|
|
lbz %r3,112+3(%r1)
|
|
|
|
+#endif
|
|
|
|
extsb %r3,%r3
|
|
|
|
mtlr %r0
|
|
|
|
b .Lfinish
|
|
|
|
|
|
|
|
# case FFI_TYPE_UINT16
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lhz %r3,112+0(%r1)
|
|
|
|
+#else
|
|
|
|
lhz %r3,112+2(%r1)
|
|
|
|
+#endif
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_SINT16
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ lha %r3,112+0(%r1)
|
|
|
|
+#else
|
|
|
|
lha %r3,112+2(%r1)
|
|
|
|
+#endif
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
# case FFI_TYPE_UINT32
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
@@ -198,76 +233,99 @@ ENTRY(ffi_closure_SYSV)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_TYPE_UINT128
|
2014-01-02 21:02:50 +01:00
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
lwz %r4,112+4(%r1)
|
|
|
|
lwz %r5,112+8(%r1)
|
|
|
|
- bl .Luint128
|
|
|
|
+ b .Luint128
|
|
|
|
|
|
|
|
# The return types below are only used when the ABI type is FFI_SYSV.
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 1. One byte struct.
|
2014-01-02 22:31:24 +01:00
|
|
|
lbz %r3,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 2. Two byte struct.
|
|
|
|
lhz %r3,112+0(%r1)
|
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
2014-01-02 21:02:50 +01:00
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 3. Three byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ mtlr %r0
|
|
|
|
+ addi %r1,%r1,144
|
|
|
|
+ blr
|
|
|
|
+#else
|
|
|
|
srwi %r3,%r3,8
|
|
|
|
mtlr %r0
|
|
|
|
b .Lfinish
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 4. Four byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
2014-01-02 22:31:24 +01:00
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
2014-01-02 21:02:50 +01:00
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 5. Five byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
lwz %r4,112+4(%r1)
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ mtlr %r0
|
|
|
|
+ b .Lfinish
|
|
|
|
+#else
|
|
|
|
li %r5,24
|
|
|
|
b .Lstruct567
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 6. Six byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
lwz %r4,112+4(%r1)
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ mtlr %r0
|
|
|
|
+ b .Lfinish
|
|
|
|
+#else
|
|
|
|
li %r5,16
|
|
|
|
b .Lstruct567
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 7. Seven byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
|
|
|
lwz %r4,112+4(%r1)
|
|
|
|
+#ifdef __LITTLE_ENDIAN__
|
|
|
|
+ mtlr %r0
|
|
|
|
+ b .Lfinish
|
|
|
|
+#else
|
|
|
|
li %r5,8
|
|
|
|
b .Lstruct567
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
# case FFI_SYSV_TYPE_SMALL_STRUCT + 8. Eight byte struct.
|
|
|
|
lwz %r3,112+0(%r1)
|
2014-01-02 22:31:24 +01:00
|
|
|
lwz %r4,112+4(%r1)
|
2014-01-02 21:02:50 +01:00
|
|
|
mtlr %r0
|
|
|
|
b .Lfinish
|
|
|
|
|
|
|
|
+#ifndef __LITTLE_ENDIAN__
|
|
|
|
.Lstruct567:
|
|
|
|
subfic %r6,%r5,32
|
|
|
|
srw %r4,%r4,%r5
|
2014-01-02 22:31:24 +01:00
|
|
|
slw %r6,%r3,%r6
|
|
|
|
srw %r3,%r3,%r5
|
|
|
|
or %r4,%r6,%r4
|
2014-01-02 21:02:50 +01:00
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
.Luint128:
|
|
|
|
lwz %r6,112+12(%r1)
|
2014-01-02 22:31:24 +01:00
|
|
|
mtlr %r0
|
|
|
|
addi %r1,%r1,144
|
|
|
|
blr
|
|
|
|
|
|
|
|
END(ffi_closure_SYSV)
|
|
|
|
diff --git a/js/src/ctypes/libffi/src/powerpc/sysv.S b/js/src/ctypes/libffi/src/powerpc/sysv.S
|
|
|
|
--- a/js/src/ctypes/libffi/src/powerpc/sysv.S
|
|
|
|
+++ b/js/src/ctypes/libffi/src/powerpc/sysv.S
|
|
|
|
@@ -78,37 +78,41 @@ ENTRY(ffi_call_SYSV)
|
|
|
|
nop
|
|
|
|
lwz %r7,-16-(4*4)(%r28)
|
|
|
|
lwz %r8,-16-(3*4)(%r28)
|
|
|
|
lwz %r9,-16-(2*4)(%r28)
|
|
|
|
lwz %r10,-16-(1*4)(%r28)
|
2014-01-02 21:02:50 +01:00
|
|
|
nop
|
|
|
|
1:
|
|
|
|
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
/* Load all the FP registers. */
|
|
|
|
bf- 6,2f
|
|
|
|
lfd %f1,-16-(8*4)-(8*8)(%r28)
|
2014-01-02 22:31:24 +01:00
|
|
|
lfd %f2,-16-(8*4)-(7*8)(%r28)
|
|
|
|
lfd %f3,-16-(8*4)-(6*8)(%r28)
|
|
|
|
lfd %f4,-16-(8*4)-(5*8)(%r28)
|
|
|
|
nop
|
|
|
|
lfd %f5,-16-(8*4)-(4*8)(%r28)
|
2014-01-02 21:02:50 +01:00
|
|
|
lfd %f6,-16-(8*4)-(3*8)(%r28)
|
|
|
|
lfd %f7,-16-(8*4)-(2*8)(%r28)
|
|
|
|
lfd %f8,-16-(8*4)-(1*8)(%r28)
|
|
|
|
+#endif
|
|
|
|
2:
|
|
|
|
|
|
|
|
/* Make the call. */
|
2014-01-02 22:31:24 +01:00
|
|
|
bctrl
|
|
|
|
|
|
|
|
/* Now, deal with the return value. */
|
2014-01-02 21:02:50 +01:00
|
|
|
mtcrf 0x01,%r31 /* cr7 */
|
|
|
|
bt- 31,L(small_struct_return_value)
|
|
|
|
bt- 30,L(done_return_value)
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
bt- 29,L(fp_return_value)
|
|
|
|
+#endif
|
|
|
|
stw %r3,0(%r30)
|
|
|
|
bf+ 28,L(done_return_value)
|
|
|
|
stw %r4,4(%r30)
|
2014-01-02 22:31:24 +01:00
|
|
|
mtcrf 0x02,%r31 /* cr6 */
|
|
|
|
bf 27,L(done_return_value)
|
|
|
|
stw %r5,8(%r30)
|
|
|
|
stw %r6,12(%r30)
|
|
|
|
/* Fall through... */
|
|
|
|
@@ -119,41 +123,38 @@ L(done_return_value):
|
|
|
|
lwz %r31, -4(%r28)
|
|
|
|
mtlr %r9
|
|
|
|
lwz %r30, -8(%r28)
|
|
|
|
lwz %r29,-12(%r28)
|
|
|
|
lwz %r28,-16(%r28)
|
2014-01-02 21:02:50 +01:00
|
|
|
lwz %r1,0(%r1)
|
|
|
|
blr
|
|
|
|
|
|
|
|
+#ifndef __NO_FPRS__
|
|
|
|
L(fp_return_value):
|
|
|
|
bf 28,L(float_return_value)
|
|
|
|
stfd %f1,0(%r30)
|
2014-01-02 22:31:24 +01:00
|
|
|
mtcrf 0x02,%r31 /* cr6 */
|
|
|
|
bf 27,L(done_return_value)
|
|
|
|
stfd %f2,8(%r30)
|
|
|
|
b L(done_return_value)
|
2014-01-02 21:02:50 +01:00
|
|
|
L(float_return_value):
|
|
|
|
stfs %f1,0(%r30)
|
|
|
|
b L(done_return_value)
|
|
|
|
+#endif
|
|
|
|
|
|
|
|
L(small_struct_return_value):
|
|
|
|
- extrwi %r6,%r31,2,19 /* number of bytes padding = shift/8 */
|
|
|
|
- mtcrf 0x02,%r31 /* copy flags to cr[24:27] (cr6) */
|
|
|
|
- extrwi %r5,%r31,5,19 /* r5 <- number of bits of padding */
|
|
|
|
- subfic %r6,%r6,4 /* r6 <- number of useful bytes in r3 */
|
|
|
|
- bf- 25,L(done_return_value) /* struct in r3 ? if not, done. */
|
|
|
|
-/* smst_one_register: */
|
|
|
|
- slw %r3,%r3,%r5 /* Left-justify value in r3 */
|
|
|
|
- mtxer %r6 /* move byte count to XER ... */
|
|
|
|
- stswx %r3,0,%r30 /* ... and store that many bytes */
|
|
|
|
- bf+ 26,L(done_return_value) /* struct in r3:r4 ? */
|
|
|
|
- add %r6,%r6,%r30 /* adjust pointer */
|
|
|
|
- stswi %r4,%r6,4 /* store last four bytes */
|
|
|
|
- b L(done_return_value)
|
|
|
|
+ /*
|
|
|
|
+ * The C code always allocates a properly-aligned 8-byte bounce
|
|
|
|
+ * buffer to make this assembly code very simple. Just write out
|
|
|
|
+ * r3 and r4 to the buffer to allow the C code to handle the rest.
|
|
|
|
+ */
|
|
|
|
+ stw %r3, 0(%r30)
|
|
|
|
+ stw %r4, 4(%r30)
|
|
|
|
+ b L(done_return_value)
|
|
|
|
|
|
|
|
.LFE1:
|
|
|
|
END(ffi_call_SYSV)
|
2014-01-02 22:31:24 +01:00
|
|
|
|
|
|
|
.section ".eh_frame",EH_FRAME_FLAGS,@progbits
|
|
|
|
.Lframe1:
|
|
|
|
.4byte .LECIE1-.LSCIE1 /* Length of Common Information Entry */
|
|
|
|
.LSCIE1:
|