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- Improved async signal safety of read() particularly for longjmp()
- Started adding cancel cleanup handlers for locks / etc on Windows
- Make /dev/tty work better particularly for uses like `foo | less`
- Eagerly read console input into a linked list, so poll can signal
- Fix some libc definitional bugs, which configure scripts detected
This commit is contained in:
Justine Tunney 2023-09-21 07:30:39 -07:00
parent d6c2830850
commit 0c5dd7b342
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GPG key ID: BE714B4575D6E328
85 changed files with 1062 additions and 671 deletions
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23
libc/runtime/mmap.c
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@ -157,9 +157,9 @@ static bool __auto_map(int count, int align, int *res) {
*res + count <= FRAME(kAutomapStart + (kAutomapSize - 1));
}
static void *__finish_memory(void *addr, size_t size, int prot,
int flags, int fd, int64_t off, int f,
int x, int n, struct DirectMap dm) {
static void *__finish_memory(void *addr, size_t size, int prot, int flags,
int fd, int64_t off, int f, int x, int n,
struct DirectMap dm) {
if (!IsWindows() && (flags & MAP_FIXED)) {
if (__untrack_memories(addr, size)) {
__mmap_die("FIXED UNTRACK FAILED");
@ -178,8 +178,8 @@ static void *__finish_memory(void *addr, size_t size, int prot,
return addr;
}
static void *__map_memory(void *addr, size_t size, int prot, int flags,
int fd, int64_t off, int f, int x, int n) {
static void *__map_memory(void *addr, size_t size, int prot, int flags, int fd,
int64_t off, int f, int x, int n) {
struct DirectMap dm;
dm = sys_mmap(addr, size, prot, f, fd, off);
if (VERY_UNLIKELY(dm.addr == MAP_FAILED)) {
@ -200,9 +200,10 @@ static void *__map_memory(void *addr, size_t size, int prot, int flags,
* This is useful on Windows since it allows us to partially unmap or
* punch holes into existing mappings.
*/
static textwindows dontinline void *__map_memories(
char *addr, size_t size, int prot, int flags, int fd, int64_t off, int f,
int x, int n) {
static textwindows dontinline void *__map_memories(char *addr, size_t size,
int prot, int flags, int fd,
int64_t off, int f, int x,
int n) {
size_t i, m;
int64_t oi, sz;
struct DirectMap dm;
@ -238,8 +239,8 @@ static textwindows dontinline void *__map_memories(
return addr;
}
inline void *__mmap_unlocked(void *addr, size_t size, int prot,
int flags, int fd, int64_t off) {
inline void *__mmap_unlocked(void *addr, size_t size, int prot, int flags,
int fd, int64_t off) {
char *p = addr;
struct DirectMap dm;
size_t requested_size;
@ -480,3 +481,5 @@ void *mmap(void *addr, size_t size, int prot, int flags, int fd, int64_t off) {
toto);
return res;
}
__strong_reference(mmap, mmap64);