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This commit is contained in:
Gavin Hayes 2023-02-01 23:38:06 -05:00
parent cb64ae5c75
commit 09a0fda723
1 changed files with 7 additions and 4 deletions
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11
libc/zipos/mmap.c
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@ -48,14 +48,17 @@
*/ */
void *__zipos_mmap(void *addr, size_t size, int prot, int flags, void *__zipos_mmap(void *addr, size_t size, int prot, int flags,
struct ZiposHandle *h, int64_t off) { struct ZiposHandle *h, int64_t off) {
if(!(flags & MAP_PRIVATE) || (flags & ~(MAP_PRIVATE | MAP_FILE | MAP_FIXED | MAP_FIXED_NOREPLACE)) || if (!(flags & MAP_PRIVATE) ||
(!!(flags & MAP_FIXED) ^ !!(flags & MAP_FIXED_NOREPLACE))) { (flags & ~(MAP_PRIVATE | MAP_FILE | MAP_FIXED | MAP_FIXED_NOREPLACE)) ||
STRACE("zipos mappings currently only support MAP_PRIVATE with select flags"); (!!(flags & MAP_FIXED) ^ !!(flags & MAP_FIXED_NOREPLACE))) {
STRACE(
"zipos mappings currently only support MAP_PRIVATE with select flags");
return VIP(einval()); return VIP(einval());
} }
const int tempProt = !IsXnu() ? prot | PROT_WRITE : PROT_WRITE; const int tempProt = !IsXnu() ? prot | PROT_WRITE : PROT_WRITE;
void *outAddr = mmap(addr, size, tempProt, (flags & (~MAP_FILE)) | MAP_ANONYMOUS, -1, 0); void *outAddr =
mmap(addr, size, tempProt, (flags & (~MAP_FILE)) | MAP_ANONYMOUS, -1, 0);
if (outAddr == MAP_FAILED) { if (outAddr == MAP_FAILED) {
return MAP_FAILED; return MAP_FAILED;
} }