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Minor fixes

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topjohnwu 2024-02-24 22:00:09 -08:00
parent 0dbaf52566
commit 47e6dd286d
2 changed files with 43 additions and 9 deletions
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34
native/src/crt0/misc.c
View File

@ -3,6 +3,7 @@
#include <libgen.h>
#include <errno.h>
#include <unistd.h>
#include <pthread.h>
// Source: bionic/libc/upstream-openbsd/lib/libc/stdlib/getenv.c
static char *__findenv(const char *name, int len, int *offset) {
@ -162,17 +163,34 @@ int __cxa_atexit(void (*func) (void *), void * arg, void * dso_handle) {
return 0;
}
// Dummy function symbols
// Emulate pthread functions
long dummy() { return 0; }
static pthread_key_t g_counter = 0;
static void **g_key_values = NULL;
#define DUMMY_SYMBOL(name) \
__asm__(".global " #name " \n " #name " = dummy")
int pthread_key_create(pthread_key_t *key_ptr, void (*dtor)(void*)) {
*key_ptr = g_counter++;
g_key_values = realloc(g_key_values, g_counter * sizeof(void*));
return 0;
}
DUMMY_SYMBOL(pthread_setspecific);
DUMMY_SYMBOL(pthread_key_create);
DUMMY_SYMBOL(pthread_key_delete);
DUMMY_SYMBOL(pthread_getspecific);
int pthread_key_delete(pthread_key_t key) {
if (key < g_counter) {
g_key_values[key] = NULL;
}
return 0;
}
void *pthread_getspecific(pthread_key_t key) {
return key < g_counter ? g_key_values[key] : NULL;
}
int pthread_setspecific(pthread_key_t key, const void *value) {
if (key < g_counter) {
g_key_values[key] = (void *) value;
}
return 0;
}
// Workaround LTO bug: https://github.com/llvm/llvm-project/issues/61101
#if defined(__i386__)

18
native/src/crt0/syscall.c
View File

@ -28,7 +28,6 @@ __asm__(".global " #from " \n " #from " = " #to)
SYMBOL_ALIAS(name, sys_##name)
EXPORT_SYMBOL(_exit);
EXPORT_SYMBOL(open);
EXPORT_SYMBOL(openat);
EXPORT_SYMBOL(close);
EXPORT_SYMBOL(read);
@ -203,3 +202,20 @@ int faccessat(int dirfd, const char *pathname, int mode, int flags) {
return sys_faccessat(dirfd, pathname, mode);
}
int open(const char *pathname, int flags, ...) {
int mode = 0;
if (((flags & O_CREAT) == O_CREAT) || ((flags & O_TMPFILE) == O_TMPFILE)) {
va_list args;
va_start(args, flags);
mode = va_arg(args, int);
va_end(args);
}
#if !defined(__LP64__)
flags |= O_LARGEFILE;
#endif
return sys_openat(AT_FDCWD, pathname, flags, mode);
}