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Merge branch 'PHP-8.2' into PHP-8.3

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* PHP-8.2:
  Fix GH-16168: php 8.1 and earlier crash immediately when compiled with Xcode 16 clang on macOS 15
This commit is contained in:
Niels Dossche 2024-10-11 09:14:10 +02:00
commit e4a23e920d
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2 changed files with 24 additions and 20 deletions
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4
NEWS
View File

@ -5,6 +5,10 @@ PHP NEWS
- COM:
. Fixed out of bound writes to SafeArray data. (cmb)
- Core:
. Fixed bug GH-16168 (php 8.1 and earlier crash immediately when compiled
with Xcode 16 clang on macOS 15). (nielsdos)
- Curl:
. Fixed bug GH-16302 (CurlMultiHandle holds a reference to CurlHandle if
curl_multi_add_handle fails). (timwolla)

40
Zend/zend_string.c
View File

@ -402,32 +402,32 @@ ZEND_API bool ZEND_FASTCALL I_REPLACE_SONAME_FNNAME_ZU(NONE,zend_string_equal_va
ZEND_API zend_never_inline NOIPA bool ZEND_FASTCALL zend_string_equal_val(const zend_string *s1, const zend_string *s2)
{
const char *ptr = ZSTR_VAL(s1);
size_t delta = (const char*)s2 - (const char*)s1;
uintptr_t delta = (uintptr_t) s2 - (uintptr_t) s1;
size_t len = ZSTR_LEN(s1);
zend_ulong ret;
__asm__ (
".LL0%=:\n\t"
"0:\n\t"
"movl (%2,%3), %0\n\t"
"xorl (%2), %0\n\t"
"jne .LL1%=\n\t"
"jne 1f\n\t"
"addl $0x4, %2\n\t"
"subl $0x4, %1\n\t"
"ja .LL0%=\n\t"
"ja 0b\n\t"
"movl $0x1, %0\n\t"
"jmp .LL3%=\n\t"
".LL1%=:\n\t"
"jmp 3f\n\t"
"1:\n\t"
"cmpl $0x4,%1\n\t"
"jb .LL2%=\n\t"
"jb 2f\n\t"
"xorl %0, %0\n\t"
"jmp .LL3%=\n\t"
".LL2%=:\n\t"
"jmp 3f\n\t"
"2:\n\t"
"negl %1\n\t"
"lea 0x20(,%1,8), %1\n\t"
"shll %b1, %0\n\t"
"sete %b0\n\t"
"movzbl %b0, %0\n\t"
".LL3%=:\n"
"3:\n"
: "=&a"(ret),
"+c"(len),
"+r"(ptr)
@ -440,32 +440,32 @@ ZEND_API zend_never_inline NOIPA bool ZEND_FASTCALL zend_string_equal_val(const
ZEND_API zend_never_inline NOIPA bool ZEND_FASTCALL zend_string_equal_val(const zend_string *s1, const zend_string *s2)
{
const char *ptr = ZSTR_VAL(s1);
size_t delta = (const char*)s2 - (const char*)s1;
uintptr_t delta = (uintptr_t) s2 - (uintptr_t) s1;
size_t len = ZSTR_LEN(s1);
zend_ulong ret;
__asm__ (
".LL0%=:\n\t"
"0:\n\t"
"movq (%2,%3), %0\n\t"
"xorq (%2), %0\n\t"
"jne .LL1%=\n\t"
"jne 1f\n\t"
"addq $0x8, %2\n\t"
"subq $0x8, %1\n\t"
"ja .LL0%=\n\t"
"ja 0b\n\t"
"movq $0x1, %0\n\t"
"jmp .LL3%=\n\t"
".LL1%=:\n\t"
"jmp 3f\n\t"
"1:\n\t"
"cmpq $0x8,%1\n\t"
"jb .LL2%=\n\t"
"jb 2f\n\t"
"xorq %0, %0\n\t"
"jmp .LL3%=\n\t"
".LL2%=:\n\t"
"jmp 3f\n\t"
"2:\n\t"
"negq %1\n\t"
"lea 0x40(,%1,8), %1\n\t"
"shlq %b1, %0\n\t"
"sete %b0\n\t"
"movzbq %b0, %0\n\t"
".LL3%=:\n"
"3:\n"
: "=&a"(ret),
"+c"(len),
"+r"(ptr)