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mdbx: enable solib profiling with -pg and gprof with GLIBC >= 2.37.

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However such profiling requires https://sourceware.org/bugzilla/show_bug.cgi?id=29438 to be fixed.
This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2022-08-04 14:28:35 +03:00
parent a44eb1accb
commit 77635116c6
3 changed files with 37 additions and 2 deletions
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20
src/lck-posix.c
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@@ -32,6 +32,7 @@ uint32_t mdbx_linux_kernel_version;
bool mdbx_RunningOnWSL1;
#endif /* xMDBX_ALLOY */
MDBX_EXCLUDE_FOR_GPROF
__cold static uint8_t probe_for_WSL(const char *tag) {
const char *const WSL = strstr(tag, "WSL");
if (WSL && WSL[3] >= '2' && WSL[3] <= '9')
@@ -48,8 +49,22 @@ __cold static uint8_t probe_for_WSL(const char *tag) {
#endif /* Linux */
#ifdef ENABLE_GPROF
extern void _mcleanup(void);
extern void monstartup(unsigned long, unsigned long);
extern void _init(void);
extern void _fini(void);
extern void __gmon_start__(void) __attribute__((__weak__));
#endif /* ENABLE_GPROF */
MDBX_EXCLUDE_FOR_GPROF
__cold static __attribute__((__constructor__)) void
mdbx_global_constructor(void) {
#ifdef ENABLE_GPROF
if (!&__gmon_start__)
monstartup((uintptr_t)&_init, (uintptr_t)&_fini);
#endif /* ENABLE_GPROF */
#if defined(__linux__) || defined(__gnu_linux__)
struct utsname buffer;
if (uname(&buffer) == 0) {
@@ -84,9 +99,14 @@ mdbx_global_constructor(void) {
mdbx_rthc_global_init();
}
MDBX_EXCLUDE_FOR_GPROF
__cold static __attribute__((__destructor__)) void
mdbx_global_destructor(void) {
mdbx_rthc_global_dtor();
#ifdef ENABLE_GPROF
if (!&__gmon_start__)
_mcleanup();
#endif /* ENABLE_GPROF */
}
/*----------------------------------------------------------------------------*/