diff options
Diffstat (limited to 'libdwfl/dwfl_error.c')
| -rw-r--r-- | libdwfl/dwfl_error.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libdwfl/dwfl_error.c b/libdwfl/dwfl_error.c index 7bcf61cc..a5c683a9 100644 --- a/libdwfl/dwfl_error.c +++ b/libdwfl/dwfl_error.c @@ -137,6 +137,21 @@ __libdwfl_seterrno (Dwfl_Error error) } +static const char * +errnomsg(int error) +{ + /* Won't be changed by strerror_r, but not const so compiler doesn't throw warning */ + static char unknown[] = "unknown error"; + +#ifdef STRERROR_R_CHAR_P + return strerror_r (error, unknown, 0); +#else + /* To store the error message from strerror_r in a thread-safe manner */ + static __thread char msg[128]; + return strerror_r (error, msg, sizeof (msg)) ? unknown : msg; +#endif +} + const char * dwfl_errmsg (int error) { @@ -154,7 +169,7 @@ dwfl_errmsg (int error) switch (error &~ 0xffff) { case OTHER_ERROR (ERRNO): - return strerror_r (error & 0xffff, "bad", 0); + return errnomsg (error & 0xffff); case OTHER_ERROR (LIBELF): return elf_errmsg (error & 0xffff); case OTHER_ERROR (LIBDW): |