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Bring MODE=tiny binary sizes down to 20kb minimum

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aarch64 binaries start at 4kb.
This commit is contained in:
Justine Tunney 2023-05-10 03:38:43 -07:00
parent 5f57fc1f59
commit f312f706f4
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GPG key ID: BE714B4575D6E328
8 changed files with 27 additions and 10 deletions
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4
libc/intrin/asan.c
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@ -48,6 +48,8 @@
#include "libc/thread/tls.h"
#include "third_party/dlmalloc/dlmalloc.h"
#ifdef __x86_64__
STATIC_YOINK("_init_asan");
#if IsModeDbg()
@ -1497,3 +1499,5 @@ __attribute__((__constructor__)) void __asan_init(int argc, char **argv,
STRACE("/_/ \\_\\____/_/ \\_\\_| \\_|");
STRACE("cosmopolitan memory safety module initialized");
}
#endif /* __x86_64__ */

14
libc/intrin/g_fds.c
View file

@ -22,6 +22,7 @@
#include "libc/intrin/extend.internal.h"
#include "libc/intrin/pushpop.h"
#include "libc/intrin/weaken.h"
#include "libc/macros.internal.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/str/str.h"
@ -34,6 +35,7 @@ STATIC_YOINK("_init_g_fds");
#endif
struct Fds g_fds;
static struct Fd g_fds_static[8];
static textwindows dontinline void SetupWinStd(struct Fds *fds, int i, int x) {
int64_t h;
@ -50,11 +52,17 @@ textstartup void InitializeFileDescriptors(void) {
pthread_atfork(_weaken(__fds_lock), _weaken(__fds_unlock),
_weaken(__fds_funlock));
fds = VEIL("r", &g_fds);
fds->p = fds->e = (void *)kMemtrackFdsStart;
fds->n = 4;
atomic_store_explicit(&fds->f, 3, memory_order_relaxed);
fds->e = _extend(fds->p, fds->n * sizeof(*fds->p), fds->e, MAP_PRIVATE,
kMemtrackFdsStart + kMemtrackFdsSize);
if (_weaken(_extend)) {
fds->p = fds->e = (void *)kMemtrackFdsStart;
fds->e =
_weaken(_extend)(fds->p, fds->n * sizeof(*fds->p), fds->e, MAP_PRIVATE,
kMemtrackFdsStart + kMemtrackFdsSize);
} else {
fds->p = g_fds_static;
fds->e = g_fds_static + ARRAYLEN(g_fds_static);
}
if (IsMetal()) {
extern const char vga_console[];
fds->f = 3;