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Code Releases Wiki Activity

pcre2: Update to upstream version 10.34

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Changelog: https://vcs.pcre.org/pcre2/code/tags/pcre2-10.34/ChangeLog?view=markup
This commit is contained in:
Rémi Verschelde
2020-04-30 15:09:03 +02:00
parent d29514acce
commit 824736d271
39 changed files with 7446 additions and 4735 deletions
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28
thirdparty/pcre2/src/sljit/sljitExecAllocator.c vendored
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@@ -118,10 +118,20 @@ static SLJIT_INLINE int get_map_jit_flag()
if (map_jit_flag == -1) {
struct utsname name;
map_jit_flag = 0;
uname(&name);
/* Kernel version for 10.14.0 (Mojave) */
map_jit_flag = (atoi(name.release) >= 18) ? MAP_JIT : 0;
if (atoi(name.release) >= 18) {
/* Only use MAP_JIT if a hardened runtime is used, because MAP_JIT is incompatible with fork(). */
void *ptr = mmap(NULL, getpagesize(), PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (ptr == MAP_FAILED) {
map_jit_flag = MAP_JIT;
} else {
munmap(ptr, getpagesize());
}
}
}
return map_jit_flag;
@@ -137,6 +147,7 @@ static SLJIT_INLINE int get_map_jit_flag()
static SLJIT_INLINE void* alloc_chunk(sljit_uw size)
{
void *retval;
const int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
#ifdef MAP_ANON
@@ -146,16 +157,25 @@ static SLJIT_INLINE void* alloc_chunk(sljit_uw size)
flags |= get_map_jit_flag();
#endif
retval = mmap(NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, flags, -1, 0);
retval = mmap(NULL, size, prot, flags, -1, 0);
#else /* !MAP_ANON */
if (dev_zero < 0) {
if (open_dev_zero())
return NULL;
}
retval = mmap(NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, dev_zero, 0);
retval = mmap(NULL, size, prot, MAP_PRIVATE, dev_zero, 0);
#endif /* MAP_ANON */
return (retval != MAP_FAILED) ? retval : NULL;
if (retval == MAP_FAILED)
retval = NULL;
else {
if (mprotect(retval, size, prot) < 0) {
munmap(retval, size);
retval = NULL;
}
}
return retval;
}
static SLJIT_INLINE void free_chunk(void *chunk, sljit_uw size)