diff options
Diffstat (limited to 'gcc_arm/ginclude/va-spur.h')
-rwxr-xr-x | gcc_arm/ginclude/va-spur.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/gcc_arm/ginclude/va-spur.h b/gcc_arm/ginclude/va-spur.h new file mode 100755 index 0000000..7457ceb --- /dev/null +++ b/gcc_arm/ginclude/va-spur.h @@ -0,0 +1,64 @@ +/* varargs.h for SPUR */ + +/* NB. This is NOT the definition needed for the new ANSI proposed + standard */ + + +struct __va_struct { char __regs[20]; }; + +#define va_alist __va_regs, __va_stack + +/* In GCC version 2, we want an ellipsis at the end of the declaration + of the argument list. GCC version 1 can't parse it. */ + +#if __GNUC__ > 1 +#define __va_ellipsis ... +#else +#define __va_ellipsis +#endif + +/* The ... causes current_function_varargs to be set in cc1. */ +#define va_dcl struct __va_struct __va_regs; int __va_stack; + +typedef struct { + int __pnt; + char *__regs; + char *__stack; +} va_list; + +#define va_start(pvar) \ + ((pvar).__pnt = 0, (pvar).__regs = __va_regs.__regs, \ + (pvar).__stack = (char *) &__va_stack) +#define va_end(pvar) ((void)0) + +/* Avoid errors if compiling GCC v2 with GCC v1. */ +#if __GNUC__ == 1 +#define __extension__ +#endif + +#define va_arg(pvar,type) \ +__extension__ \ + (*({ type *__va_result; \ + if ((pvar).__pnt >= 20) { \ + __va_result = ( (type *) ((pvar).__stack + (pvar).__pnt - 20)); \ + (pvar).__pnt += (sizeof(type) + 7) & ~7; \ + } \ + else if ((pvar).__pnt + sizeof(type) > 20) { \ + __va_result = (type *) (pvar).__stack; \ + (pvar).__pnt = 20 + ( (sizeof(type) + 7) & ~7); \ + } \ + else if (sizeof(type) == 8) { \ + union {double d; int i[2];} __u; \ + __u.i[0] = *(int *) ((pvar).__regs + (pvar).__pnt); \ + __u.i[1] = *(int *) ((pvar).__regs + (pvar).__pnt + 4); \ + __va_result = (type *) &__u; \ + (pvar).__pnt += 8; \ + } \ + else { \ + __va_result = (type *) ((pvar).__regs + (pvar).__pnt); \ + (pvar).__pnt += (sizeof(type) + 3) & ~3; \ + } \ + __va_result; })) + +/* Copy __gnuc_va_list into another variable of this type. */ +#define __va_copy(dest, src) (dest) = (src) |