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Bug#37003 Tests sporadically crashes with embedded server

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Another problem is that the backtrace facility wasn't being
enabled for non-Linux targets even if the target OS has the
backtrace functions. Also, the stacktrace functions inside
mysqltest were being used without proper checks for their
presence in the build.
This commit is contained in:
Davi Arnaut
2008-06-19 11:02:32 -03:00
parent 30bd1d7cb3
commit e7f3c5fc44
5 changed files with 107 additions and 71 deletions
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134
mysys/stacktrace.c
View File

@ -34,11 +34,16 @@
#define PTR_SANE(p) ((p) && (char*)(p) >= heap_start && (char*)(p) <= heap_end)
static char *heap_start;
#ifdef HAVE_BSS_START
extern char *__bss_start;
#endif
void my_init_stacktrace()
{
#ifdef HAVE_BSS_START
heap_start = (char*) &__bss_start;
#endif
}
void my_safe_print_str(const char* name, const char* val, int max_len)
@ -58,7 +63,68 @@ void my_safe_print_str(const char* name, const char* val, int max_len)
fputc('\n', stderr);
}
#ifdef TARGET_OS_LINUX
#if HAVE_BACKTRACE && (HAVE_BACKTRACE_SYMBOLS || HAVE_BACKTRACE_SYMBOLS_FD)
#if BACKTRACE_DEMANGLE
char __attribute__ ((weak)) *my_demangle(const char *mangled_name, int *status)
{
return NULL;
}
static void my_demangle_symbols(char **addrs, int n)
{
int status, i;
char *begin, *end, *demangled;
for (i= 0; i < n; i++)
{
demangled= NULL;
begin= strchr(addrs[i], '(');
end= begin ? strchr(begin, '+') : NULL;
if (begin && end)
{
*begin++= *end++= '\0';
demangled= my_demangle(begin, &status);
if (!demangled || status)
{
demangled= NULL;
begin[-1]= '(';
end[-1]= '+';
}
}
if (demangled)
fprintf(stderr, "%s(%s+%s\n", addrs[i], demangled, end);
else
fprintf(stderr, "%s\n", addrs[i]);
}
}
#endif /* BACKTRACE_DEMANGLE */
void my_print_stacktrace(uchar* stack_bottom, ulong thread_stack)
{
void *addrs[128];
char **strings= NULL;
int n = backtrace(addrs, array_elements(addrs));
#if BACKTRACE_DEMANGLE
if ((strings= backtrace_symbols(addrs, n)))
{
my_demangle_symbols(strings, n);
free(strings);
}
#endif
#if HAVE_BACKTRACE_SYMBOLS_FD
if (!strings)
{
backtrace_symbols_fd(addrs, n, fileno(stderr));
}
#endif
}
#elif defined(TARGET_OS_LINUX)
#ifdef __i386__
#define SIGRETURN_FRAME_OFFSET 17
@ -108,74 +174,8 @@ inline uint32* find_prev_pc(uint32* pc, uchar** fp)
}
#endif /* defined(__alpha__) && defined(__GNUC__) */
#if BACKTRACE_DEMANGLE
char __attribute__ ((weak)) *my_demangle(const char *mangled_name, int *status)
{
return NULL;
}
static void my_demangle_symbols(char **addrs, int n)
{
int status, i;
char *begin, *end, *demangled;
for (i= 0; i < n; i++)
{
demangled= NULL;
begin= strchr(addrs[i], '(');
end= begin ? strchr(begin, '+') : NULL;
if (begin && end)
{
*begin++= *end++= '\0';
demangled= my_demangle(begin, &status);
if (!demangled || status)
{
demangled= NULL;
begin[-1]= '(';
end[-1]= '+';
}
}
if (demangled)
fprintf(stderr, "%s(%s+%s\n", addrs[i], demangled, end);
else
fprintf(stderr, "%s\n", addrs[i]);
}
}
#endif
#if HAVE_BACKTRACE
static void backtrace_current_thread(void)
{
void *addrs[128];
char **strings= NULL;
int n = backtrace(addrs, array_elements(addrs));
#if BACKTRACE_DEMANGLE
if ((strings= backtrace_symbols(addrs, n)))
{
my_demangle_symbols(strings, n);
free(strings);
}
#endif
#if HAVE_BACKTRACE_SYMBOLS_FD
if (!strings)
{
backtrace_symbols_fd(addrs, n, fileno(stderr));
}
#endif
}
#endif
void my_print_stacktrace(uchar* stack_bottom, ulong thread_stack)
{
#if HAVE_BACKTRACE
backtrace_current_thread();
return;
#endif
uchar** fp;
uint frame_count = 0, sigreturn_frame_count;
#if defined(__alpha__) && defined(__GNUC__)