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Make ssize_t an actual ssize_t 

In the process of getting rid of compiler includes during in coreboot
and libpayload, we defined size_t and ssize_t ourselves, using a GCC
macro for size_t: __SIZE_TYPE__. Unfortunately, there is no
__SSIZE_TYPE__, so we temporarily redefine unsigned to signed to make
__SIZE_TYPE__ __SSIZE_TYPE__.

Signed-off-by: Stefan Reinauer <reinauer@google.com>

Change-Id: I4cf4eb0fdaa4db64277c2585fe2c1bdc0acdf02b
Reviewed-on: https://gerrit.chromium.org/gerrit/49947
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@google.com>
Tested-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/4156
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Stefan Reinauer 2013-05-02 14:02:28 -07:00 committed by Stefan Reinauer
parent 118b382e7d
commit f8b36501fd
2 changed files with 14 additions and 2 deletions
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8
payloads/libpayload/include/stddef.h
View File

@ -5,7 +5,13 @@
#define __SIZE_TYPE__ unsigned long
#endif
typedef __SIZE_TYPE__ size_t;
typedef long ssize_t;
/* There is a GCC macro for a size_t type, but not
* for a ssize_t type. Below construct tricks GCC
* into making __SIZE_TYPE__ signed.
*/
#define unsigned signed
typedef __SIZE_TYPE__ ssize_t;
#undef unsigned
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)

8
src/include/stddef.h
View File

@ -6,7 +6,13 @@ typedef long ptrdiff_t;
#define __SIZE_TYPE__ unsigned long
#endif
typedef __SIZE_TYPE__ size_t;
typedef long ssize_t;
/* There is a GCC macro for a size_t type, but not
* for a ssize_t type. Below construct tricks GCC
* into making __SIZE_TYPE__ signed.
*/
#define unsigned signed
typedef __SIZE_TYPE__ ssize_t;
#undef unsigned
typedef int wchar_t;
typedef unsigned int wint_t;