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Bring back gc() function

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Renaming gc() to _gc() was a mistake since the better thing to do is put
it behind the _COSMO_SOURCE macro. We need this change because I haven't
wanted to use my amazing garbage collector ever since we renamed it. You
now need to define _COSMO_SOURCE yourself when using amalgamation header
and cosmocc users need to pass the -mcosmo flag to get the gc() function

Some other issues relating to cancelation have been fixed along the way.
We're also now putting cosmocc in a folder named `.cosmocc` so it can be
more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
This commit is contained in:
Justine Tunney 2024-01-08 10:07:35 -08:00
parent 6cb0354e19
commit a4b455185b
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GPG key ID: BE714B4575D6E328
280 changed files with 1362 additions and 1407 deletions
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6
libc/thread/tls2.internal.h
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@ -11,7 +11,7 @@ COSMOPOLITAN_C_START_
* This should be favored over __get_tls() for .privileged code that
* can't be self-modified by __enable_tls().
*/
__funline struct CosmoTib *__get_tls_privileged(void) {
forceinline struct CosmoTib *__get_tls_privileged(void) {
char *tib, *lin = (char *)0x30;
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd() || IsMetal()) {
if (!__tls_morphed) {
@ -28,14 +28,14 @@ __funline struct CosmoTib *__get_tls_privileged(void) {
return (struct CosmoTib *)tib;
}
__funline struct CosmoTib *__get_tls_win32(void) {
forceinline struct CosmoTib *__get_tls_win32(void) {
char *tib, *lin = (char *)0x30;
asm("mov\t%%gs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");
tib = *(char **)(tib + 0x1480 + __tls_index * 8);
return (struct CosmoTib *)tib;
}
__funline void __set_tls_win32(void *tls) {
forceinline void __set_tls_win32(void *tls) {
asm("mov\t%1,%%gs:%0" : "=m"(*((long *)0x1480 + __tls_index)) : "r"(tls));
}