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Add malloc logging tool

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STATIC_YOINK("enable_memory_log");
This commit is contained in:
Justine Tunney 2022-05-26 23:17:19 -07:00
parent 7e9fb0a9f1
commit cb67223051
25 changed files with 502 additions and 78 deletions
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12
libc/runtime/clone.c
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@ -199,10 +199,11 @@ static int CloneXnu(int (*fn)(void *), char *stk, size_t stksz, int flags,
wt->ctid = flags & CLONE_CHILD_SETTID ? ctid : &wt->tid;
wt->ztid = flags & CLONE_CHILD_CLEARTID ? ctid : &wt->tid;
wt->tls = flags & CLONE_SETTLS ? tls : 0;
_seizelock(&wt->lock); // TODO: How can we get the tid without locking?
wt->lock = 1;
if ((rc = bsdthread_create(fn, arg, wt, 0, PTHREAD_START_CUSTOM_XNU)) != -1) {
_spinlock(&wt->lock);
rc = wt->tid;
_spunlock(&wt->lock);
}
return rc;
}
@ -263,9 +264,7 @@ static int CloneFreebsd(int (*func)(void *), char *stk, size_t stksz, int flags,
// OPEN BESIYATA DISHMAYA
int __tfork(struct __tfork *params, size_t psize, struct CloneArgs *wt);
asm(".section\t.privileged,\"ax\",@progbits\n\t"
".local\t__tfork\n"
"__tfork:\n\t"
asm("__tfork:\n\t"
"push\t$8\n\t"
"pop\t%rax\n\t"
"mov\t%rdx,%r8\n\t"
@ -282,11 +281,10 @@ asm(".section\t.privileged,\"ax\",@progbits\n\t"
"and\t$-16,%rsp\n\t"
"push\t%rax\n\t"
"jmp\tOpenbsdThreadMain\n\t"
".size\t__tfork,.-__tfork\n\t"
".previous");
".size\t__tfork,.-__tfork\n\t");
__attribute__((__used__, __no_reorder__))
static privileged wontreturn void
static wontreturn void
OpenbsdThreadMain(struct CloneArgs *wt) {
wt->func(wt->arg);
// we no longer use the stack after this point. however openbsd