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Remove some legacy cruft

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Function trace logs will report stack usage accurately. It won't include
the argv/environ block. Our clone() polyfill is now simpler and does not
use as much stack memory. Function call tracing on x86 is now faster too
This commit is contained in:
Justine Tunney 2025-01-02 18:44:07 -08:00
parent 8db646f6b2
commit a15958edc6
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GPG key ID: BE714B4575D6E328
21 changed files with 291 additions and 467 deletions
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8
libc/intrin/sigproc.c
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@ -34,6 +34,8 @@
#include "libc/nt/thunk/msabi.h"
#ifdef __x86_64__
#define ABI __msabi textwindows dontinstrument
// cut back on code size and avoid setting errno
// this code is a mandatory dependency of winmain
__msabi extern typeof(CloseHandle) *const __imp_CloseHandle;
@ -47,8 +49,8 @@ __msabi extern typeof(GetEnvironmentVariable)
*const __imp_GetEnvironmentVariableW;
// Generates C:\ProgramData\cosmo\sig\x\y.pid like path
__msabi textwindows dontinstrument char16_t *__sig_process_path(
char16_t *path, uint32_t pid, int create_directories) {
ABI char16_t *__sig_process_path(char16_t *path, uint32_t pid,
int create_directories) {
char16_t buf[3];
char16_t *p = path;
uint32_t vlen = __imp_GetEnvironmentVariableW(u"SYSTEMDRIVE", buf, 3);
@ -100,7 +102,7 @@ __msabi textwindows dontinstrument char16_t *__sig_process_path(
return path;
}
__msabi textwindows atomic_ulong *__sig_map_process(int pid, int disposition) {
ABI atomic_ulong *__sig_map_process(int pid, int disposition) {
char16_t path[128];
__sig_process_path(path, pid, disposition == kNtOpenAlways);
intptr_t hand = __imp_CreateFileW(path, kNtGenericRead | kNtGenericWrite,