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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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280 changed files with 1362 additions and 1407 deletions
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3
libc/stdio/getentropy.c
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@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/blockcancel.internal.h"
#include "libc/calls/struct/sigset.internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/dce.h"
@ -45,7 +46,9 @@ int getentropy(void *p, size_t n) {
rc = 0;
} else {
BLOCK_SIGNALS;
BLOCK_CANCELATION;
if (__getrandom(p, n, 0) != n) notpossible;
ALLOW_CANCELATION;
ALLOW_SIGNALS;
rc = 0;
}