forked from pool/libffi
4c23af4e71
- Add patches to fix BTI on aarch64: * 830.patch - Update to 3.4.6: * Fix long double regression on mips64 and alpha. - Update to 3.4.5: * Add support for wasm32. * Add support for aarch64 branch target identification (bti). * Add support for ARCv3: ARC32 & ARC64. * Add support for HPPA64, and many HPPA fixes. * Add support for Haikuos on PowerPC. * Fixes for AIX, loongson, MIPS, power, sparc64, and x86 Darwin. - Drop upstreamed patches: * 808.patch * 810.patch OBS-URL: https://build.opensuse.org/request/show/1159617 OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/libffi?expand=0&rev=34
90 lines
3.3 KiB
Diff
90 lines
3.3 KiB
Diff
From 38d1c9d783b2c3b2b271e66a712962ffbbf7b9a5 Mon Sep 17 00:00:00 2001
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From: Bill Roberts <bill.roberts@arm.com>
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Date: Thu, 7 Mar 2024 13:07:29 -0600
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Subject: [PATCH 1/3] bti: add identifier to ffi_closure_SYSV_V_alt
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This was missing BTI_C identifier.
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Old Code:
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ffi_closure_SYSV_V_alt:
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0000fffff7f70500: ldr x17, [sp, #8]
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Signed-off-by: Bill Roberts <bill.roberts@arm.com>
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---
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src/aarch64/sysv.S | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S
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index fdd0e8b7..ba49aa13 100644
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--- a/src/aarch64/sysv.S
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+++ b/src/aarch64/sysv.S
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@@ -527,6 +527,7 @@ L(do_closure):
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#if defined(FFI_EXEC_STATIC_TRAMP)
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.align 4
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CNAME(ffi_closure_SYSV_V_alt):
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+ BTI_C
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/* See the comments above trampoline_code_table. */
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ldr x17, [sp, #8] /* Load closure in x17 */
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add sp, sp, #16 /* Restore the stack */
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@@ -541,6 +542,7 @@ CNAME(ffi_closure_SYSV_V_alt):
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.align 4
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CNAME(ffi_closure_SYSV_alt):
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+ BTI_C
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/* See the comments above trampoline_code_table. */
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ldr x17, [sp, #8] /* Load closure in x17 */
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add sp, sp, #16 /* Restore the stack */
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From da2376df7618356e9ab792a8a3cc17ba02a3108a Mon Sep 17 00:00:00 2001
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From: Bill Roberts <bill.roberts@arm.com>
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Date: Thu, 7 Mar 2024 13:07:34 -0600
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Subject: [PATCH 2/3] testsuite: fix whitespace in Makefile.am
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Signed-off-by: Bill Roberts <bill.roberts@arm.com>
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---
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testsuite/Makefile.am | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
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index d286cf7f..6ba98e12 100644
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--- a/testsuite/Makefile.am
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+++ b/testsuite/Makefile.am
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@@ -8,7 +8,7 @@ CLEANFILES = *.exe core* *.log *.sum
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EXTRA_DIST = config/default.exp emscripten/build.sh emscripten/conftest.py \
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emscripten/node-tests.sh emscripten/test.html emscripten/test_libffi.py \
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- emscripten/build-tests.sh lib/libffi.exp lib/target-libpath.exp \
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+ emscripten/build-tests.sh lib/libffi.exp lib/target-libpath.exp \
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lib/wrapper.exp libffi.bhaible/Makefile libffi.bhaible/README \
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libffi.bhaible/alignof.h libffi.bhaible/bhaible.exp libffi.bhaible/test-call.c \
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libffi.bhaible/test-callback.c libffi.bhaible/testcases.c libffi.call/align_mixed.c \
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From 243fc9e2a1ebcf60a90652ac1e0bc82a945760a5 Mon Sep 17 00:00:00 2001
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From: Bill Roberts <bill.roberts@arm.com>
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Date: Thu, 7 Mar 2024 13:03:13 -0600
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Subject: [PATCH 3/3] aarch64: correct comment describing BTI
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The comment is incorrect, BTI is enabled per mapping via mprotect with
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PROT_BTI flag set, not per-process. When the loader loads the library,
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if the GNU Notes section is missing this, PROT_BTI will not be enabled
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for that mapping, but is independent of other mappings.
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Signed-off-by: Bill Roberts <bill.roberts@arm.com>
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---
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src/aarch64/sysv.S | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S
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index ba49aa13..60cfa505 100644
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--- a/src/aarch64/sysv.S
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+++ b/src/aarch64/sysv.S
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@@ -68,7 +68,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#define BTI_J hint #36
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/*
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* The ELF Notes section needs to indicate if BTI is supported, as the first ELF loaded that doesn't
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- * declare this support disables it for the whole process.
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+ * declare this support disables it for memory region containing the loaded library.
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*/
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# define GNU_PROPERTY_AARCH64_BTI (1 << 0) /* Has Branch Target Identification */
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.text
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