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macos: various fixes

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* alloca needs to be _alloca
* int64_t and uint64_t are also defined in <sys/_types/_int64_t.h>
  but as long long, not as long, so adjust out <stddef.h> to agree
  on Darwin
* define __APPLE_CC__ so that <TargetConditionals.h> correctly defines
  various macros like TARGET_OS_MAC and TARGET_CPU_X86_64
This commit is contained in:
Michael Matz 2020-05-22 05:12:23 +02:00
parent b0b0e48409
commit 5d2f4cb403
3 changed files with 7 additions and 2 deletions
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5
include/stddef.h
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@ -17,7 +17,7 @@ typedef union { long long __ll; long double __ld; } max_align_t;
typedef signed char int8_t;
typedef signed short int int16_t;
typedef signed int int32_t;
#ifdef __LP64__
#if defined(__LP64__) && !defined(__APPLE__)
typedef signed long int int64_t;
#else
typedef signed long long int int64_t;
@ -25,7 +25,7 @@ typedef signed long long int int64_t;
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;
#ifdef __LP64__
#if defined(__LP64__) && !defined(__APPLE__)
typedef unsigned long int uint64_t;
#else
typedef unsigned long long int uint64_t;
@ -36,6 +36,7 @@ typedef unsigned long long int uint64_t;
#define NULL ((void*)0)
#endif
#undef offsetof
#define offsetof(type, field) ((size_t)&((type *)0)->field)
void *alloca(size_t size);

3
lib/alloca86_64.S
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@ -1,6 +1,9 @@
/* ---------------------------------------------- */
/* alloca86_64.S */
#ifdef __APPLE__
#define alloca _alloca
#endif
.globl alloca
alloca:

1
libtcc.c
View File

@ -943,6 +943,7 @@ LIBTCCAPI TCCState *tcc_new(void)
/* emulate APPLE-GCC to make libc's headerfiles compile: */
tcc_define_symbol(s, "__APPLE__", "1");
tcc_define_symbol(s, "__GNUC__", "4"); /* darwin emits warning on GCC<4 */
tcc_define_symbol(s, "__APPLE_CC__", "1"); /* for <TargetConditionals.h> */
/* avoids usage of GCC/clang specific builtins in libc-headerfiles: */
tcc_define_symbol(s, "__FINITE_MATH_ONLY__", "1");