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Implement thread cancellation for aarch64

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Justine Tunney 2023-09-07 08:29:16 -07:00
parent dcda6f7d8d
commit 032b1f3449
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GPG key ID: BE714B4575D6E328
54 changed files with 297 additions and 167 deletions
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6
libc/thread/pthread_create.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/atomic.h"
#include "libc/calls/blocksigs.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigaltstack.h"
@ -28,6 +29,7 @@
#include "libc/intrin/bits.h"
#include "libc/intrin/bsr.h"
#include "libc/intrin/dll.h"
#include "libc/intrin/popcnt.h"
#include "libc/log/internal.h"
#include "libc/macros.internal.h"
#include "libc/mem/mem.h"
@ -58,6 +60,7 @@ static unsigned long roundup2pow(unsigned long x) {
}
void _pthread_free(struct PosixThread *pt) {
static atomic_uint freed;
if (pt->flags & PT_STATIC) return;
free(pt->tls);
if ((pt->flags & PT_OWNSTACK) && //
@ -69,6 +72,9 @@ void _pthread_free(struct PosixThread *pt) {
free(pt->altstack);
}
free(pt);
if (popcnt(atomic_fetch_add_explicit(&freed, 1, memory_order_acq_rel)) == 1) {
malloc_trim(0);
}
}
void pthread_kill_siblings_np(void) {