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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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12
libc/dlopen/dlopen.c
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@ -254,7 +254,7 @@ static bool elf_slurp(struct Loaded *l, int fd, const char *file) {
return true;
}
static dontinline bool elf_load(struct Loaded *l, const char *file, long pagesz,
dontinline static bool elf_load(struct Loaded *l, const char *file, long pagesz,
char *interp_path, size_t interp_size) {
int fd;
if ((fd = open(file, O_RDONLY | O_CLOEXEC)) == -1)
@ -280,7 +280,7 @@ static long *push_strs(long *sp, char **list, int count) {
return sp;
}
static wontreturn dontinstrument void foreign_helper(void **p) {
wontreturn dontinstrument static void foreign_helper(void **p) {
__foreign.dlopen = p[0];
__foreign.dlsym = p[1];
__foreign.dlclose = p[2];
@ -288,7 +288,7 @@ static wontreturn dontinstrument void foreign_helper(void **p) {
_longjmp(__foreign.jb, 1);
}
static dontinline void elf_exec(const char *file, char **envp) {
dontinline static void elf_exec(const char *file, char **envp) {
// get microprocessor page size
long pagesz = __pagesize;
@ -412,7 +412,7 @@ static char *dlerror_set(const char *str) {
return dlerror_buf;
}
static dontinline char *foreign_alloc_block(void) {
dontinline static char *foreign_alloc_block(void) {
char *p = 0;
size_t sz = 65536;
if (!IsWindows()) {
@ -435,7 +435,7 @@ static dontinline char *foreign_alloc_block(void) {
return p;
}
static dontinline void *foreign_alloc(size_t n) {
dontinline static void *foreign_alloc(size_t n) {
void *res;
static char *block;
__dlopen_lock();
@ -548,7 +548,7 @@ static void *foreign_thunk_nt(void *func) {
return code;
}
static dontinline bool foreign_compile(char exe[hasatleast PATH_MAX]) {
dontinline static bool foreign_compile(char exe[hasatleast PATH_MAX]) {
// construct path
strlcpy(exe, get_tmp_dir(), PATH_MAX);