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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /tcc/include/stdarg.h
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Adds most of the toolsHEADmaster
Diffstat (limited to 'tcc/include/stdarg.h')
-rw-r--r--tcc/include/stdarg.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/tcc/include/stdarg.h b/tcc/include/stdarg.h
new file mode 100644
index 0000000..10ce733
--- /dev/null
+++ b/tcc/include/stdarg.h
@@ -0,0 +1,79 @@
+#ifndef _STDARG_H
+#define _STDARG_H
+
+#ifdef __x86_64__
+#ifndef _WIN64
+
+//This should be in sync with the declaration on our lib/libtcc1.c
+/* GCC compatible definition of va_list. */
+typedef struct {
+ unsigned int gp_offset;
+ unsigned int fp_offset;
+ union {
+ unsigned int overflow_offset;
+ char *overflow_arg_area;
+ };
+ char *reg_save_area;
+} __va_list_struct;
+
+typedef __va_list_struct va_list[1];
+
+void __va_start(__va_list_struct *ap, void *fp);
+void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align);
+
+#define va_start(ap, last) __va_start(ap, __builtin_frame_address(0))
+#define va_arg(ap, type) \
+ (*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))
+#define va_copy(dest, src) (*(dest) = *(src))
+#define va_end(ap)
+
+/* avoid conflicting definition for va_list on Macs. */
+#define _VA_LIST_T
+
+#else /* _WIN64 */
+typedef char *va_list;
+#define va_start(ap,last) __builtin_va_start(ap,last)
+#define va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \
+ ? **(t **)((ap += 8) - 8) : *(t *)((ap += 8) - 8))
+#define va_copy(dest, src) ((dest) = (src))
+#define va_end(ap)
+#endif
+
+#elif __arm__
+typedef char *va_list;
+#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)
+#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \
+ & ~(_tcc_alignof(type) - 1))
+#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
+#define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \
+ &~3), *(type *)(ap - ((sizeof(type)+3)&~3)))
+#define va_copy(dest, src) (dest) = (src)
+#define va_end(ap)
+
+#elif defined(__aarch64__)
+typedef struct {
+ void *__stack;
+ void *__gr_top;
+ void *__vr_top;
+ int __gr_offs;
+ int __vr_offs;
+} va_list;
+#define va_start(ap, last) __va_start(ap, last)
+#define va_arg(ap, type) __va_arg(ap, type)
+#define va_end(ap)
+#define va_copy(dest, src) ((dest) = (src))
+
+#else /* __i386__ */
+typedef char *va_list;
+/* only correct for i386 */
+#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
+#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))
+#define va_copy(dest, src) (dest) = (src)
+#define va_end(ap)
+#endif
+
+/* fix a buggy dependency on GCC in libio.h */
+typedef va_list __gnuc_va_list;
+#define _VA_LIST_DEFINED
+
+#endif /* _STDARG_H */