diff options
| author | Ian Lance Taylor <iant@golang.org> | 2017-09-22 13:38:10 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2017-09-22 13:38:10 +0000 |
| commit | 8c2ea6b20a48d626d3dae78ac177affb7f67e182 (patch) | |
| tree | 45668dec72f6f6dbdf72fb967ca86b70695798e0 /libbacktrace/elf.c | |
| parent | 4d6e2f33a437fc6ead8218bf5f0e2cdb3e834d9e (diff) | |
re PR sanitizer/77631 (no symbols in backtrace shown by ASan when debug info is split)
PR sanitizer/77631
* configure.ac: Check for lstat and readlink.
* elf.c (lstat, readlink): Provide dummy versions if real versions
are not available.
* configure, config.h.in: Rebuild.
From-SVN: r253095
Diffstat (limited to 'libbacktrace/elf.c')
| -rw-r--r-- | libbacktrace/elf.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libbacktrace/elf.c b/libbacktrace/elf.c index eb7d303712a..fac46860a54 100644 --- a/libbacktrace/elf.c +++ b/libbacktrace/elf.c @@ -75,6 +75,35 @@ xstrnlen (const char *s, size_t maxlen) #endif +#ifndef HAVE_LSTAT + +/* Dummy version of lstat for systems that don't have it. */ + +static int +xlstat (const char *path ATTRIBUTE_UNUSED, struct stat *st ATTRIBUTE_UNUSED) +{ + return -1; +} + +#define lstat xlstat + +#endif + +#ifndef HAVE_READLINK + +/* Dummy version of readlink for systems that don't have it. */ + +static ssize_t +xreadlink (const char *path ATTRIBUTE_UNUSED, char *buf ATTRIBUTE_UNUSED, + size_t bufsz ATTRIBUTE_UNUSED) +{ + return -1; +} + +#define readlink xreadlink + +#endif + #ifndef HAVE_DL_ITERATE_PHDR /* Dummy version of dl_iterate_phdr for systems that don't have it. */ |