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MozillaFirefox/xpcom-ppc64le.patch
Wolfgang Rosenauer 65e2d4d5d7 Accepting request 211248 from openSUSE:Factory:PowerLE 
- Add support for powerpc64le-linux.
  * ppc64le-support.patch: general support
  * libffi-ppc64le.patch: libffi backport
  * xpcom-ppc64le.patch: port xpcom
- Add build fix from mainline.
  * mozilla-bug929439.patch

OBS-URL: https://build.opensuse.org/request/show/211248
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaFirefox?expand=0&rev=360
2014-01-02 20:02:50 +00:00

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Index: mozilla/xpcom/reflect/xptcall/src/md/unix/moz.build
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/moz.build
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/moz.build
@@ -198,6 +198,13 @@ if CONFIG['OS_TEST'] == 'powerpc64':
'xptcstubs_ppc64_linux.cpp',
]
+if CONFIG['OS_TEST'] == 'powerpc64le':
+ if CONFIG['OS_ARCH'] == 'Linux':
+ CPP_SOURCES += [
+ 'xptcinvoke_ppc64_linux.cpp',
+ 'xptcstubs_ppc64_linux.cpp',
+ ]
+
if CONFIG['OS_TEST'] in ('macppc', 'bebox', 'ofppc', 'prep', 'amigappc'):
if CONFIG['OS_ARCH'] == 'NetBSD':
CPP_SOURCES += [
Index: mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/Makefile.in
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in
@@ -166,7 +166,7 @@ endif
#
# Linux/PPC64
#
-ifneq (,$(filter Linuxpowerpc64 FreeBSDpowerpc64,$(OS_ARCH)$(OS_TEST)))
+ifneq (,$(filter Linuxpowerpc64 Linuxpowerpc64le FreeBSDpowerpc64,$(OS_ARCH)$(OS_TEST)))
ASFILES := xptcinvoke_asm_ppc64_linux.s xptcstubs_asm_ppc64_linux.s
AS := $(CC) -c -x assembler-with-cpp
endif
Index: mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s
@@ -17,12 +17,29 @@
.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
.set f30,30; .set f31,31
+#if _CALL_ELF == 2
+#define STACK_TOC 28
+#define STACK_PARAMS 96
+#else
+#define STACK_TOC 40
+#define STACK_PARAMS 112
+#endif
#
# NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
# uint32_t paramCount, nsXPTCVariant* params)
#
+#if _CALL_ELF == 2
+ .section ".text"
+ .type NS_InvokeByIndex,@function
+ .globl NS_InvokeByIndex
+ .align 2
+NS_InvokeByIndex:
+0: addis 2,12,(.TOC.-0b)@ha
+ addi 2,2,(.TOC.-0b)@l
+ .localentry NS_InvokeByIndex,.-NS_InvokeByIndex
+#else
.section ".toc","aw"
.section ".text"
.align 2
@@ -34,6 +51,7 @@ NS_InvokeByIndex:
.previous
.type NS_InvokeByIndex,@function
.NS_InvokeByIndex:
+#endif
mflr 0
std 0,16(r1)
@@ -56,7 +74,7 @@ NS_InvokeByIndex:
# (-23*8).(-16*8).(-3*8)..(r31)
# +stack frame, -unused stack params, +regs storage, +1 for alignment
- addi r7,r5,((112/8)-7+7+13+3+1)
+ addi r7,r5,((STACK_PARAMS/8)-7+7+13+3+1)
rldicr r7,r7,3,59 # multiply by 8 and mask with ~15
neg r7,r7
stdux r1,r1,r7
@@ -72,7 +90,7 @@ NS_InvokeByIndex:
subi r3,r31,(23*8) # r3 --> GPRS
subi r4,r31,(16*8) # r4 --> FPRS
- addi r7,r1,112 # r7 --> params
+ addi r7,r1,STACK_PARAMS # r7 --> params
bl invoke_copy_to_stack
nop
@@ -83,14 +101,18 @@ NS_InvokeByIndex:
sldi r30,r30,3 # Find function descriptor
add r9,r9,r30
- ld r9,0(r9)
+ ld r12,0(r9)
- ld r0,0(r9) # Actual address from fd.
- std r2,40(r1) # Save r2 (TOC pointer)
+ std r2,STACK_TOC(r1) # Save r2 (TOC pointer)
+#if _CALL_ELF == 2
+ mtctr r12
+#else
+ ld r0,0(r12) # Actual address from fd.
mtctr 0
- ld r11,16(r9) # Environment pointer from fd.
- ld r2,8(r9) # TOC pointer from fd.
+ ld r11,16(r12) # Environment pointer from fd.
+ ld r2,8(r12) # TOC pointer from fd.
+#endif
# Load FP and GP registers as required
ld r4, -(23*8)(r31)
@@ -117,7 +139,7 @@ NS_InvokeByIndex:
bctrl # Do it
- ld r2,40(r1) # Load our own TOC pointer
+ ld r2,STACK_TOC(r1) # Load our own TOC pointer
ld r1,0(r1) # Revert stack frame
ld 0,16(r1) # Reload lr
ld 29,-24(r1) # Restore NVGPRS
@@ -126,7 +148,11 @@ NS_InvokeByIndex:
mtlr 0
blr
+#if _CALL_ELF == 2
+ .size NS_InvokeByIndex,.-NS_InvokeByIndex
+#else
.size NS_InvokeByIndex,.-.NS_InvokeByIndex
+#endif
# Magic indicating no need for an executable stack
.section .note.GNU-stack, "", @progbits ; .previous
Index: mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
@@ -74,7 +74,9 @@ invoke_copy_to_stack(uint64_t* gpregs,
fpregs[i] = s->val.f; // if passed in registers, floats are promoted to doubles
} else {
float *p = (float *)d;
+#ifndef __LITTLE_ENDIAN__
p++;
+#endif
*p = s->val.f;
}
}
Index: mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
@@ -17,6 +17,27 @@
.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
.set f30,30; .set f31,31
+#if _CALL_ELF == 2
+#define STACK_PARAMS 96
+#else
+#define STACK_PARAMS 112
+#endif
+
+#if _CALL_ELF == 2
+ .section ".text"
+ .type SharedStub,@function
+ .globl SharedStub
+ # Make the symbol hidden so that the branch from the stub does
+ # not go via a PLT. This is not only better for performance,
+ # but may be necessary to avoid linker errors since there is
+ # no place to restore the TOC register in a sibling call.
+ .hidden SharedStub
+ .align 2
+SharedStub:
+0: addis 2,12,(.TOC.-0b)@ha
+ addi 2,2,(.TOC.-0b)@l
+ .localentry SharedStub,.-SharedStub
+#else
.section ".text"
.align 2
.globl SharedStub
@@ -29,6 +50,7 @@ SharedStub:
.type SharedStub,@function
.SharedStub:
+#endif
mflr r0
std r4, -56(r1) # Save all GPRS
@@ -55,7 +77,7 @@ SharedStub:
subi r6,r1,56 # r6 --> gprData
subi r7,r1,160 # r7 --> fprData
- addi r5,r1,112 # r5 --> extra stack args
+ addi r5,r1,STACK_PARAMS # r5 --> extra stack args
std r0, 16(r1)
@@ -75,7 +97,11 @@ SharedStub:
mtlr r0
blr
+#if _CALL_ELF == 2
+ .size SharedStub,.-SharedStub
+#else
.size SharedStub,.-.SharedStub
+#endif
# Magic indicating no need for an executable stack
.section .note.GNU-stack, "", @progbits ; .previous
Index: mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
===================================================================
--- mozilla.orig/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc64_linux.cpp
@@ -83,7 +83,9 @@ PrepareAndDispatch(nsXPTCStubBase* self,
dp->val.f = (float) fprData[i]; // in registers floats are passed as doubles
else {
float *p = (float *)ap;
+#ifndef __LITTLE_ENDIAN__
p++;
+#endif
dp->val.f = *p;
}
} else { /* integer type or pointer */
@@ -153,6 +155,43 @@ PrepareAndDispatch(nsXPTCStubBase* self,
// etc.
// Use assembler directives to get the names right...
+#if _CALL_ELF == 2
+# define STUB_ENTRY(n) \
+__asm__ ( \
+ ".section \".text\" \n\t" \
+ ".align 2 \n\t" \
+ ".if "#n" < 10 \n\t" \
+ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase5Stub"#n"Ev,.-_ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
+ \
+ ".elseif "#n" < 100 \n\t" \
+ ".globl _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase6Stub"#n"Ev,.-_ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
+ \
+ ".elseif "#n" < 1000 \n\t" \
+ ".globl _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase7Stub"#n"Ev,.-_ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
+ \
+ ".else \n\t" \
+ ".err \"stub number "#n" >= 1000 not yet supported\"\n" \
+ ".endif \n\t" \
+ \
+ "li 11,"#n" \n\t" \
+ "b SharedStub \n" \
+);
+#else
# define STUB_ENTRY(n) \
__asm__ ( \
".section \".toc\",\"aw\" \n\t" \
@@ -195,6 +234,7 @@ __asm__ (
"li 11,"#n" \n\t" \
"b SharedStub \n" \
);
+#endif
#define SENTINEL_ENTRY(n) \
nsresult nsXPTCStubBase::Sentinel##n() \
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