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authorStefan Reinauer <reinauer@chromium.org>2013-05-02 14:02:28 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-11-25 23:13:50 +0100
commitf8b36501fd3f70569b15cc8dcaa9bcd8f76870af (patch)
treed7b668ad9fc9710a123351daf5e38c97261e049d /payloads/libpayload
parent118b382e7d3d126da3ea4adff375cf3065df8734 (diff)
downloadcoreboot-f8b36501fd3f70569b15cc8dcaa9bcd8f76870af.tar.xz
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>
Diffstat (limited to 'payloads/libpayload')
-rw-r--r--payloads/libpayload/include/stddef.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/payloads/libpayload/include/stddef.h b/payloads/libpayload/include/stddef.h
index 91ae78237a..f9deaeb0dc 100644
--- a/payloads/libpayload/include/stddef.h
+++ b/payloads/libpayload/include/stddef.h
@@ -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)