mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-04 02:08:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Make garbage collection thread safe

Browse source 
- You can now use _gc(malloc()) in multithreaded programs
- This change fixes a bug where fork() on NT disabled TLS
- Fixed TLS code morphing on XNU/NT, for R8-R15 registers
This commit is contained in:
Justine Tunney 2022-09-08 02:33:01 -07:00
parent 571c2c3c69
commit 0e2b1bfeed
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
37 changed files with 310 additions and 189 deletions
Download patch file Download diff file Expand all files Collapse all files

5
libc/intrin/asan.c
View file

@ -40,7 +40,9 @@
#include "libc/mem/mem.h"
#include "libc/mem/reverse.internal.h"
#include "libc/nexgen32e/gc.internal.h"
#include "libc/nexgen32e/gettls.h"
#include "libc/nexgen32e/stackframe.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/nt/enum/version.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/directmap.internal.h"
@ -56,6 +58,7 @@
#include "libc/sysv/consts/nr.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/thread.h"
#include "third_party/dlmalloc/dlmalloc.h"
STATIC_YOINK("_init_asan");
@ -936,7 +939,7 @@ static void __asan_trace(struct AsanTrace *bt, const struct StackFrame *bp) {
size_t i, gi;
intptr_t addr;
struct Garbages *garbage;
garbage = weaken(__garbage);
garbage = __tls_enabled ? ((cthread_t)__get_tls())->garbages : 0;
gi = garbage ? garbage->i : 0;
for (f1 = -1, i = 0; bp && i < ARRAYLEN(bt->p); ++i, bp = bp->next) {
if (f1 != (f2 = ((intptr_t)bp >> 16))) {