mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-01-31 03:27:39 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Get deathstar demo working again on metal

Browse source
This commit is contained in:
Justine Tunney 2024-07-04 03:44:17 -07:00
parent 15ea0524b3
commit bd6d9ff99a
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
6 changed files with 21 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
libc/calls/ucontext.c
View file

@ -34,7 +34,7 @@ int __tailcontext(const ucontext_t *);
* @see getcontext()
*/
int setcontext(const ucontext_t *uc) {
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
atomic_store_explicit(&__get_tls()->tib_sigmask, uc->uc_sigmask,
memory_order_release);
} else {
@ -44,7 +44,7 @@ int setcontext(const ucontext_t *uc) {
}
int __getcontextsig(ucontext_t *uc) {
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
uc->uc_sigmask =
atomic_load_explicit(&__get_tls()->tib_sigmask, memory_order_acquire);
return 0;
@ -54,7 +54,7 @@ int __getcontextsig(ucontext_t *uc) {
}
int __swapcontextsig(ucontext_t *x, const ucontext_t *y) {
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
x->uc_sigmask = atomic_exchange_explicit(
&__get_tls()->tib_sigmask, y->uc_sigmask, memory_order_acquire);
return 0;

8
libc/intrin/mman.greg.c
View file

@ -45,7 +45,7 @@
#ifdef __x86_64__
#define INVERT(x) (BANE + PHYSICAL((uintptr_t)(x)))
#define NOPAGE ((uint64_t) - 1)
#define NOPAGE ((uint64_t)-1)
#define APE_STACK_VADDR \
({ \
@ -69,9 +69,9 @@ texthead uint64_t __new_page(struct mman *mm) {
if (p != NOPAGE) {
uint64_t q;
struct ReclaimedPage *rp = (struct ReclaimedPage *)(BANE + p);
unassert(p == (p & PAGE_TA));
/* unassert(p == (p & PAGE_TA)); */
q = rp->next;
unassert(q == (q & PAGE_TA) || q == NOPAGE);
/* unassert(q == (q & PAGE_TA) || q == NOPAGE); */
mm->frp = q;
return p;
}
@ -200,7 +200,7 @@ void __ref_pages(struct mman *mm, uint64_t *pml4t, uint64_t ps, uint64_t size) {
*/
static void __reclaim_page(struct mman *mm, uint64_t p) {
struct ReclaimedPage *rp = (struct ReclaimedPage *)(BANE + p);
unassert(p == (p & PAGE_TA));
/* unassert(p == (p & PAGE_TA)); */
rp->next = mm->frp;
mm->frp = p;
}

1
libc/intrin/pthread_mutex_lock.c
View file

@ -25,7 +25,6 @@
#include "libc/runtime/internal.h"
#include "libc/thread/lock.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
#include "third_party/nsync/mu.h"
/**

9
libc/intrin/sig.c
View file

@ -27,9 +27,12 @@
struct Signals __sig;
sigset_t __sig_block(void) {
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
if (__tls_enabled)
return atomic_exchange_explicit(&__get_tls()->tib_sigmask, -1,
memory_order_acquire);
else
return 0;
} else {
sigset_t res, neu = -1;
sys_sigprocmask(SIG_SETMASK, &neu, &res);
@ -38,11 +41,13 @@ sigset_t __sig_block(void) {
}
void __sig_unblock(sigset_t m) {
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
if (__tls_enabled) {
atomic_store_explicit(&__get_tls()->tib_sigmask, m, memory_order_release);
if (_weaken(__sig_check)) {
_weaken(__sig_check)();
}
}
} else {
sys_sigprocmask(SIG_SETMASK, &m, 0);
}

2
libc/runtime/set_tls.c
View file

@ -57,7 +57,7 @@ dontinstrument textstartup void __set_tls(struct CosmoTib *tib) {
uint64_t val = (uint64_t)tib;
asm volatile("wrmsr"
: /* no outputs */
: "c"(MSR_IA32_FS_BASE), "a"((uint32_t)val),
: "c"(MSR_IA32_GS_BASE), "a"((uint32_t)val),
"d"((uint32_t)(val >> 32)));
}
#elif defined(__aarch64__)

2
libc/thread/pthread_create.c
View file

@ -118,7 +118,7 @@ static int PosixThread(void *arg, int tid) {
// set long jump handler so pthread_exit can bring control back here
if (!setjmp(pt->pt_exiter)) {
sigdelset(&pt->pt_attr.__sigmask, SIGTHR);
if (IsWindows()) {
if (IsWindows() || IsMetal()) {
atomic_store_explicit(&__get_tls()->tib_sigmask, pt->pt_attr.__sigmask,
memory_order_release);
} else {