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Clean up some of the threading code

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Justine Tunney 2022-09-08 11:54:56 -07:00
parent 0547eabcd6
commit 9f963dc597
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GPG key ID: BE714B4575D6E328
62 changed files with 175 additions and 582 deletions
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12
libc/runtime/getsymboltable.c
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@ -17,11 +17,11 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/weaken.h"
#include "libc/calls/strace.internal.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/promises.internal.h"
#include "libc/intrin/spinlock.h"
#include "libc/intrin/pthread.h"
#include "libc/intrin/weaken.h"
#include "libc/macros.internal.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
@ -32,7 +32,7 @@
#include "libc/zipos/zipos.internal.h"
#include "third_party/zlib/puff.h"
static int g_lock;
static pthread_spinlock_t g_lock;
hidden struct SymbolTable *__symtab; // for kprintf
/**
@ -125,7 +125,7 @@ static struct SymbolTable *GetSymbolTableFromElf(void) {
*/
struct SymbolTable *GetSymbolTable(void) {
struct Zipos *z;
if (_trylock(&g_lock)) return 0;
if (pthread_spin_trylock(&g_lock)) return 0;
if (!__symtab && !__isworker) {
if (weaken(__zipos_get) && (z = weaken(__zipos_get)())) {
if ((__symtab = GetSymbolTableFromZip(z))) {
@ -139,7 +139,7 @@ struct SymbolTable *GetSymbolTable(void) {
__symtab = GetSymbolTableFromElf();
}
}
_spunlock(&g_lock);
pthread_spin_unlock(&g_lock);
return __symtab;
}