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restored run-time thread lib detection

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sql/stacktrace.c:
  removed code duplication
sql/stacktrace.h:
  removed code duplication
This commit is contained in:
unknown
2007-03-28 15:33:29 +02:00
parent 143151229f
commit f8eed3c1ce
8 changed files with 81 additions and 64 deletions
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17
sql/stacktrace.c
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@ -55,19 +55,6 @@ void safe_print_str(const char* name, const char* val, int max_len)
static my_bool is_nptl;
/* Check if we are using NPTL or LinuxThreads on Linux */
void check_thread_lib(void)
{
char buf[5];
#ifdef _CS_GNU_LIBPTHREAD_VERSION
confstr(_CS_GNU_LIBPTHREAD_VERSION, buf, sizeof(buf));
is_nptl = !strncasecmp(buf, "NPTL", sizeof(buf));
#else
is_nptl = 0;
#endif
}
#if defined(__alpha__) && defined(__GNUC__)
/*
The only way to backtrace without a symbol table on alpha
@ -173,8 +160,8 @@ terribly wrong...\n");
#endif /* __alpha__ */
/* We are 1 frame above signal frame with NPTL and 2 frames above with LT */
sigreturn_frame_count = is_nptl ? 1 : 2;
sigreturn_frame_count = thd_lib_detected == THD_LIB_LT ? 2 : 1;
while (fp < (uchar**) stack_bottom)
{
#if defined(__i386__) || defined(__x86_64__)