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GH-9370: Fix opcache jit protection bits. #9371

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GH-9370: Fix opcache jit protection bits. #9371

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5372a1d
GH-9370: Fix opcache jit protection bits.
devnexen Aug 18, 2022
8fd9cdf
changes from review
devnexen Aug 22, 2022
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2 changes: 0 additions & 2 deletions ext/opcache/jit/zend_jit.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4611,7 +4611,6 @@ ZEND_EXT_API void zend_jit_unprotect(void)
#ifdef HAVE_PTHREAD_JIT_WRITE_PROTECT_NP
if (zend_write_protect) {
pthread_jit_write_protect_np(0);
return;
}
#endif
opts |= PROT_EXEC;
Expand Down Expand Up @@ -4645,7 +4644,6 @@ ZEND_EXT_API void zend_jit_protect(void)
#ifdef HAVE_PTHREAD_JIT_WRITE_PROTECT_NP
if (zend_write_protect) {
pthread_jit_write_protect_np(1);
return;
}
#endif
if (mprotect(dasm_buf, dasm_size, PROT_READ | PROT_EXEC) != 0) {
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3 changes: 3 additions & 0 deletions ext/opcache/shared_alloc_mmap.c
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Expand Up @@ -166,6 +166,9 @@ static int create_segments(size_t requested_size, zend_shared_segment ***shared_
#ifdef PROT_MAX
flags |= PROT_MAX(PROT_READ | PROT_WRITE | PROT_EXEC);
#endif
#ifdef MAP_JIT
flags |= MAP_JIT;
#endif
#if (defined(__linux__) || defined(__FreeBSD__)) && (defined(__x86_64__) || defined (__aarch64__))
void *hint = find_prefered_mmap_base(requested_size);
if (hint != MAP_FAILED) {
Expand Down