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first working tls on macOS using interpose; still slow

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This commit is contained in:
daan 2020-01-29 22:46:44 -08:00
parent b3dae128de
commit 03b363a1c2
9 changed files with 155 additions and 120 deletions
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32
src/options.c
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@ -53,7 +53,7 @@ static mi_option_desc_t options[_mi_option_last] =
// stable options
{ MI_DEBUG, UNINIT, MI_OPTION(show_errors) },
{ 0, UNINIT, MI_OPTION(show_stats) },
{ 0, UNINIT, MI_OPTION(verbose) },
{ 1, UNINIT, MI_OPTION(verbose) },
// the following options are experimental and not all combinations make sense.
{ 1, UNINIT, MI_OPTION(eager_commit) }, // commit on demand
@ -239,16 +239,30 @@ static volatile _Atomic(uintptr_t) error_count; // = 0; // when MAX_ERROR_COUNT
// inside the C runtime causes another message.
static mi_decl_thread bool recurse = false;
static bool mi_recurse_enter(void) {
#ifdef MI_TLS_RECURSE_GUARD
if (_mi_preloading()) return true;
#endif
if (recurse) return false;
recurse = true;
return true;
}
static void mi_recurse_exit(void) {
#ifdef MI_TLS_RECURSE_GUARD
if (_mi_preloading()) return;
#endif
recurse = false;
}
void _mi_fputs(mi_output_fun* out, void* arg, const char* prefix, const char* message) {
if (recurse) return;
if (!mi_recurse_enter()) return;
if (out==NULL || (FILE*)out==stdout || (FILE*)out==stderr) { // TODO: use mi_out_stderr for stderr?
out = mi_out_get_default(&arg);
}
recurse = true;
if (prefix != NULL) out(prefix,arg);
out(message,arg);
recurse = false;
return;
mi_recurse_exit();
}
// Define our own limited `fprintf` that avoids memory allocation.
@ -256,14 +270,12 @@ void _mi_fputs(mi_output_fun* out, void* arg, const char* prefix, const char* me
static void mi_vfprintf( mi_output_fun* out, void* arg, const char* prefix, const char* fmt, va_list args ) {
char buf[512];
if (fmt==NULL) return;
if (recurse) return;
recurse = true;
if (!mi_recurse_enter()) return;
vsnprintf(buf,sizeof(buf)-1,fmt,args);
recurse = false;
mi_recurse_exit();
_mi_fputs(out,arg,prefix,buf);
}
void _mi_fprintf( mi_output_fun* out, void* arg, const char* fmt, ... ) {
va_list args;
va_start(args,fmt);
@ -290,7 +302,7 @@ void _mi_verbose_message(const char* fmt, ...) {
static void mi_show_error_message(const char* fmt, va_list args) {
if (!mi_option_is_enabled(mi_option_show_errors) && !mi_option_is_enabled(mi_option_verbose)) return;
if (mi_atomic_increment(&error_count) > mi_max_error_count) return;
mi_vfprintf(NULL, NULL, "mimalloc: error: ", fmt, args);
mi_vfprintf(NULL, NULL, "mimalloc: error: ", fmt, args);
}
void _mi_warning_message(const char* fmt, ...) {