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* Apply the proposed fix for D158491, build failure on mips64el, still

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unreviewed upstream. Addresses: #1056116.
This commit is contained in:
Matthias Klose 2023-12-06 10:01:37 +01:00
parent 9aa5a6b013
commit b849383755
3 changed files with 56 additions and 0 deletions
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2
debian/changelog vendored
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@ -5,6 +5,8 @@ llvm-toolchain-snapshot (1:18~++20231203101651+e3b3c91dd0bb-1~exp2) UNRELEASED;
- armel: arm926ej-s. Addresses: #1056115. - armel: arm926ej-s. Addresses: #1056115.
- armhf: cortex-a8. - armhf: cortex-a8.
Thanks to Arnd Bergmann and Ard Biesheuvel for the fixes. Thanks to Arnd Bergmann and Ard Biesheuvel for the fixes.
* Apply the proposed fix for D158491, build failure on mips64el, still
unreviewed upstream. Addresses: #1056116.
-- Sylvestre Ledru <sylvestre@debian.org> Tue, 05 Dec 2023 07:43:43 +0100 -- Sylvestre Ledru <sylvestre@debian.org> Tue, 05 Dec 2023 07:43:43 +0100

53
debian/patches/D158491.diff vendored Normal file
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@ -0,0 +1,53 @@
see https://reviews.llvm.org/D158491, still unreviewed upstream
--- a/compiler-rt/lib/interception/interception.h
+++ b/compiler-rt/lib/interception/interception.h
@@ -199,8 +199,9 @@
".type " SANITIZER_STRINGIFY(TRAMPOLINE(func)) ", %function\n" \
SANITIZER_STRINGIFY(TRAMPOLINE(func)) ":\n" \
SANITIZER_STRINGIFY(CFI_STARTPROC) "\n" \
- SANITIZER_STRINGIFY(ASM_TAIL_CALL) " __interceptor_" \
- SANITIZER_STRINGIFY(ASM_PREEMPTIBLE_SYM(func)) "\n" \
+ C_ASM_TAIL_CALL(SANITIZER_STRINGIFY(TRAMPOLINE(func)), \
+ "__interceptor_" \
+ SANITIZER_STRINGIFY(ASM_PREEMPTIBLE_SYM(func))) "\n" \
SANITIZER_STRINGIFY(CFI_ENDPROC) "\n" \
".size " SANITIZER_STRINGIFY(TRAMPOLINE(func)) ", " \
".-" SANITIZER_STRINGIFY(TRAMPOLINE(func)) "\n" \
--- a/compiler-rt/lib/sanitizer_common/sanitizer_asm.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_asm.h
@@ -44,6 +44,8 @@
#if defined(__x86_64__) || defined(__i386__) || defined(__sparc__)
# define ASM_TAIL_CALL jmp
+#elif defined(__mips__) && __mips_isa_rev >= 6
+# define ASM_TAIL_CALL bc
#elif defined(__arm__) || defined(__aarch64__) || defined(__mips__) || \
defined(__powerpc__) || defined(__loongarch_lp64)
# define ASM_TAIL_CALL b
@@ -53,6 +55,25 @@
# define ASM_TAIL_CALL tail
#endif
+#if defined(__mips64) && __mips_isa_rev < 6
+# define C_ASM_TAIL_CALL(tfunc, ifunc) \
+ "lui $t8, %hi(%neg(%gp_rel(" tfunc ")))\n" \
+ "daddu $t8, $t8, $t9\n" \
+ "daddu $t8, $t8, %lo(%neg(%gp_rel(" tfunc ")))\n" \
+ "ld $t9, %got_disp(" ifunc ")($t8)\n" \
+ "jr $t9\n"
+#elif defined(__mips__) && __mips_isa_rev < 6
+# define C_ASM_TAIL_CALL(tfunc, ifunc) \
+ ".set noreorder\n" \
+ ".cpload $t9\n" \
+ ".set reorder\n" \
+ "lw $t9, %got(" ifunc ")($gp)\n" \
+ "jr $t9\n"
+#elif defined(ASM_TAIL_CALL)
+# define C_ASM_TAIL_CALL(tfunc, ifunc) \
+ SANITIZER_STRINGIFY(ASM_TAIL_CALL) " " ifunc
+#endif
+
#if defined(__ELF__) && defined(__x86_64__) || defined(__i386__) || \
defined(__riscv)
# define ASM_PREEMPTIBLE_SYM(sym) sym@plt

1
debian/patches/series vendored
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@ -148,3 +148,4 @@ link-grpc.diff
libclang-major-version-only.diff libclang-major-version-only.diff
D148945-revert.diff D148945-revert.diff
arm32-defaults.diff arm32-defaults.diff
D158491.diff