lang/gcc11: Fix Address sanitizer
Software compiled with -fsanitize=address fails to run with the error message "ASan runtime does not come first in initial library list; you should either link runtime to your application or manually preload it with LD_PRELOAD". This commit fixes the issue by ignoring the [vdso] loaded shared library instead of linux-vdso.so. PR: 267751 Reported by: yuri
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@ -1,6 +1,6 @@
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PORTNAME= gcc
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PORTVERSION= 11.3.0
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PORTREVISION= 5
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PORTREVISION= 6
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CATEGORIES= lang
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MASTER_SITES= GCC
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PKGNAMESUFFIX= ${SUFFIX}
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18
lang/gcc11/files/patch-libsanitizer_asan_asan__linux.cpp
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18
lang/gcc11/files/patch-libsanitizer_asan_asan__linux.cpp
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Since the vDSO shared librares on Linux and FreeBSD are called
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differently, the initialization order check fails on FreeBSD.
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This patch fixes it by ignoring [vdso] instead of linux-vdso.so.
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GCC gets the original file from the LLVM Project, so this patch should
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probably be upstreamed directly to the LLVM Project rather than to GCC.
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--- libsanitizer/asan/asan_linux.cpp.orig 2022-11-23 10:52:45 UTC
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+++ libsanitizer/asan/asan_linux.cpp
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@@ -135,7 +135,7 @@ static int FindFirstDSOCallback(struct dl_phdr_info *i
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return 0;
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// Ignore vDSO
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- if (internal_strncmp(info->dlpi_name, "linux-", sizeof("linux-") - 1) == 0)
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+ if (internal_strncmp(info->dlpi_name, "[vdso]", sizeof("[vdso]") - 1) == 0)
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return 0;
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#if SANITIZER_FREEBSD || SANITIZER_NETBSD
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