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- Introduce portable sched_getcpu() api
- Support GCC's __target_clones__ feature
- Make fma() go faster on x86 in default mode
- Remove some asan checks from core libraries
- WinMain() now ensures $HOME and $USER are defined
This commit is contained in:
Justine Tunney 2024-02-01 03:39:46 -08:00
parent d5225a693b
commit 2ab9e9f7fd
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GPG key ID: BE714B4575D6E328
192 changed files with 2809 additions and 932 deletions
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38
ape/ape-m1.c
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@ -39,7 +39,7 @@
/* maximum path size that cosmo can take */
#define PATHSIZE (PATH_MAX < 1024 ? PATH_MAX : 1024)
#define SYSLIB_MAGIC ('s' | 'l' << 8 | 'i' << 16 | 'b' << 24)
#define SYSLIB_VERSION 8
#define SYSLIB_VERSION 9 /* sync with libc/runtime/syslib.internal.h */
struct Syslib {
int magic;
@ -96,11 +96,16 @@ struct Syslib {
long (*sem_trywait)(int *);
long (*getrlimit)(int, struct rlimit *);
long (*setrlimit)(int, const struct rlimit *);
// v6 (2023-11-03)
/* v6 (2023-11-03) */
void *(*dlopen)(const char *, int);
void *(*dlsym)(void *, const char *);
int (*dlclose)(void *);
char *(*dlerror)(void);
/* MANDATORY (cosmo runtime won't load if version < 8)
---------------------------------------------------
OPTIONAL (cosmo lib should check __syslib->version) */
/* v9 (2024-01-31) */
int (*pthread_cpu_number_np)(size_t *);
};
#define ELFCLASS32 1
@ -660,9 +665,9 @@ __attribute__((__noreturn__)) static void Spawn(const char *exe, int fd,
size = (p[i].p_vaddr & (pagesz - 1)) + p[i].p_filesz;
if (prot1 & PROT_EXEC) {
#ifdef SIP_DISABLED
// if sip is disabled then we can load the executable segments
// off the binary into memory without needing to copy anything
// which provides considerably better performance for building
/* if sip is disabled then we can load the executable segments
off the binary into memory without needing to copy anything
which provides considerably better performance for building */
rc = sys_mmap(addr, size, prot1, flags, fd, p[i].p_offset & -pagesz);
if (rc < 0) {
if (rc == -EPERM) {
@ -674,12 +679,12 @@ __attribute__((__noreturn__)) static void Spawn(const char *exe, int fd,
}
}
#else
// the issue is that if sip is enabled then, attempting to map
// it with exec permission will cause xnu to phone home a hash
// of the entire file to apple intelligence as a one time cost
// which is literally minutes for executables holding big data
// since there's no public apple api for detecting sip we read
// as the default strategy which is slow but it works for both
/* the issue is that if sip is enabled then, attempting to map
it with exec permission will cause xnu to phone home a hash
of the entire file to apple intelligence as a one time cost
which is literally minutes for executables holding big data
since there's no public apple api for detecting sip we read
as the default strategy which is slow but it works for both */
rc = sys_mmap(addr, size, (prot1 = PROT_READ | PROT_WRITE),
MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS, -1, 0);
if (rc < 0) Pexit(exe, rc, "prog mmap anon");
@ -812,12 +817,10 @@ static const char *TryElf(struct ApeLoader *M, union ElfEhdrBuf *ebuf,
}
}
/*
* merge adjacent loads that are contiguous with equal protection,
* which prevents our program header overlap check from needlessly
* failing later on; it also shaves away a microsecond of latency,
* since every program header requires invoking at least 1 syscall
*/
/* merge adjacent loads that are contiguous with equal protection,
which prevents our program header overlap check from needlessly
failing later on; it also shaves away a microsecond of latency,
since every program header requires invoking at least 1 syscall */
for (i = 0; i + 1 < e->e_phnum;) {
if (p[i].p_type == PT_LOAD && p[i + 1].p_type == PT_LOAD &&
((p[i].p_flags & (PF_R | PF_W | PF_X)) ==
@ -944,6 +947,7 @@ int main(int argc, char **argv, char **envp) {
M->lib.dlsym = dlsym;
M->lib.dlclose = dlclose;
M->lib.dlerror = dlerror;
M->lib.pthread_cpu_number_np = pthread_cpu_number_np;
/* getenv("_") is close enough to at_execfn */
execfn = 0;