Date: Thu, 5 Aug 2021 09:25:50 GMT From: Alex Richardson <arichardson@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: e0174face9bb - stable/13 - Allow building usr.bin/vi with MK_ASAN Message-ID: <202108050925.1759PoD2006685@gitrepo.freebsd.org>
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The branch stable/13 has been updated by arichardson: URL: https://cgit.FreeBSD.org/src/commit/?id=e0174face9bb3fe83dbc92984c32ad4ff32e6b7c commit e0174face9bb3fe83dbc92984c32ad4ff32e6b7c Author: Alex Richardson <arichardson@FreeBSD.org> AuthorDate: 2021-07-19 14:04:19 +0000 Commit: Alex Richardson <arichardson@FreeBSD.org> CommitDate: 2021-08-05 09:00:14 +0000 Allow building usr.bin/vi with MK_ASAN We have to namespace the regex functions to avoid duplicate symbol errors. This also ensures that vi doesn't define the libc reg* functions with mismatched signatures. ld: error: duplicate symbol: regcomp >>> defined at sanitizer_common_interceptors.inc:7519 (/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:7519) >>> asan_interceptors.o:(__interceptor_regcomp) in archive /usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.a >>> defined at regcomp.c >>> .../regex/regcomp.c.o:(.text+0x0) ld: error: duplicate symbol: regerror >>> defined at sanitizer_common_interceptors.inc:7543 (/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:7543) >>> asan_interceptors.o:(__interceptor_regerror) in archive /usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.a >>> defined at regerror.c >>> .../regex/regerror.c.o:(.text+0x0) ld: error: duplicate symbol: regexec >>> defined at sanitizer_common_interceptors.inc:7530 (/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:7530) >>> asan_interceptors.o:(__interceptor_regexec) in archive /usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.a >>> defined at regexec.c >>> .../regex/regexec.c.o:(.text+0x0) ld: error: duplicate symbol: regfree >>> defined at sanitizer_common_interceptors.inc:7553 (/usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:7553) >>> asan_interceptors.o:(__interceptor_regfree) in archive /usr/lib/clang/10.0.1/lib/freebsd/libclang_rt.asan-x86_64.a >>> defined at regfree.c >>> .../regex/regfree.c.o:(.text+0x0) Committed upstream as https://github.com/lichray/nvi2/pull/92 Reviewed By: bapt Differential Revision: https://reviews.freebsd.org/D31050 (cherry picked from commit 8ef98a8045d4623edd75b91ce76eedeaa4ad3f01) --- contrib/nvi/regex/regex.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/contrib/nvi/regex/regex.h b/contrib/nvi/regex/regex.h index 20ea7865c0a0..7d788514a54c 100644 --- a/contrib/nvi/regex/regex.h +++ b/contrib/nvi/regex/regex.h @@ -96,6 +96,16 @@ typedef struct { #define REG_LARGE 01000 /* force large representation */ #define REG_BACKR 02000 /* force use of backref code */ +#ifdef USE_WIDECHAR +/* + * Avoid function name conflicts with the system regex functions. + * This is needed e.g. to build with AddressSanitizer. + */ +#define regcomp nvi_regcomp +#define regerror nvi_regerror +#define regexec nvi_regexec +#define regfree nvi_regfree +#endif int regcomp(regex_t *, const RCHAR_T *, int); size_t regerror(int, const regex_t *, char *, size_t); int regexec(const regex_t *,
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