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fix incompatible pointer type for va_list in nano versions of printf and scanf for target like PowerPC

This commit is contained in:
Alexander Fedotov 2017-12-25 16:28:22 +03:00 committed by Corinna Vinschen
parent 9588ff7555
commit fcd33916ac
2 changed files with 24 additions and 5 deletions
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14
newlib/libc/stdio/nano-vfprintf.c
View File

@ -168,6 +168,16 @@ static char *rcsid = "$Id$";
#include "vfieeefp.h"
#include "nano-vfprintf_local.h"
/* GCC PR 14577 at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14557 */
#if __STDC_VERSION__ >= 201112L
#define va_ptr(ap) _Generic(&(ap), va_list *: &(ap), default: (va_list *)(ap))
#elif __GNUC__ >= 4
#define va_ptr(ap) __builtin_choose_expr(__builtin_types_compatible_p(__typeof__(&(ap)), va_list *), &(ap), (va_list *)(ap))
#else
#define va_ptr(ap) (sizeof(ap) == sizeof(va_list) ? (va_list *)&(ap) : (va_list *)(ap))
#endif
/* The __ssputs_r function is shared between all versions of vfprintf
and vfwprintf. */
#ifdef STRING_ONLY
@ -633,12 +643,12 @@ _DEFUN(_VFPRINTF_R, (data, fp, fmt0, ap),
}
else
{
n = _printf_float (data, &prt_data, fp, pfunc, &ap);
n = _printf_float (data, &prt_data, fp, pfunc, va_ptr(ap));
}
}
else
#endif
n = _printf_i (data, &prt_data, fp, pfunc, &ap);
n = _printf_i (data, &prt_data, fp, pfunc, va_ptr(ap));
if (n == -1)
goto error;

15
newlib/libc/stdio/nano-vfscanf.c
View File

@ -119,6 +119,15 @@ Supporting OS subroutines required:
#include "../stdlib/local.h"
#include "nano-vfscanf_local.h"
/* GCC PR 14577 at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14557 */
#if __STDC_VERSION__ >= 201112L
#define va_ptr(ap) _Generic(&(ap), va_list *: &(ap), default: (va_list *)(ap))
#elif __GNUC__ >= 4
#define va_ptr(ap) __builtin_choose_expr(__builtin_types_compatible_p(__typeof__(&(ap)), va_list *), &(ap), (va_list *)(ap))
#else
#define va_ptr(ap) (sizeof(ap) == sizeof(va_list) ? (va_list *)&(ap) : (va_list *)(ap))
#endif
#define VFSCANF vfscanf
#define _VFSCANF_R _vfscanf_r
#define __SVFSCANF __svfscanf
@ -424,12 +433,12 @@ _DEFUN(__SVFSCANF_R, (rptr, fp, fmt0, ap),
}
ret = 0;
if (scan_data.code < CT_INT)
ret = _scanf_chars (rptr, &scan_data, fp, &ap);
ret = _scanf_chars (rptr, &scan_data, fp, va_ptr(ap));
else if (scan_data.code < CT_FLOAT)
ret = _scanf_i (rptr, &scan_data, fp, &ap);
ret = _scanf_i (rptr, &scan_data, fp, va_ptr(ap));
#ifdef FLOATING_POINT
else if (_scanf_float)
ret = _scanf_float (rptr, &scan_data, fp, &ap);
ret = _scanf_float (rptr, &scan_data, fp, va_ptr(ap));
#endif
if (ret == MATCH_FAILURE)