compiler building blocks: common definitions.

+ cbb-common.h: this target-agnostic header must always be included
  when building cbb-gcc, but should have no effect on the code that
  is generated by the resulting toolchain.

signed-off by Z. Gilboa; see copying.midipix (9cd0746c) for additional information.

1 files changed, 59 insertions, 0 deletions

diff --git a/libc/cbb-common.h b/libc/cbb-common.h
new file mode 100644
index 000000000..f07c7faed
--- /dev/null
+++ b/libc/cbb-common.h
@@ -0,0 +1,59 @@
+/**************************************************/
+/*  compiler building blocks: common definitions  */
+/**************************************************/
+
+#ifndef __ASSEMBLER__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* namespace */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+
+/* a minimal, modernized libiberty */
+#include <features.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <errno.h>
+
+
+void   xexit(int status);
+int    xatexit(void (*function)(void));
+void * xcalloc(size_t, size_t);
+void * xrealloc(void *, size_t);
+char * xstrdup(const char *);
+char * xstrndup(const char *, size_t);
+char * xstrerror(int);
+
+
+/* compatibility layer */
+#undef  __GLIBC_PREREQ
+#define __GLIBC_PREREQ (ig,nored)	(1)
+
+#define _GLIBCXX_BEGIN_NAMESPACE_VERSION
+#define _GLIBCXX_END_NAMESPACE_VERSION
+
+#define _GLIBCXX_VISIBILITY(V)		__attribute__ ((__visibility__ (#V)))
+
+
+#undef  _GLIBCXX_C_LOCALE_GNU
+#define _GLIBCXX_C_LOCALE_GNU		(1)
+
+#undef   __GCC_ATOMIC_INT_LOCK_FREE
+#define  __GCC_ATOMIC_INT_LOCK_FREE	(2)
+
+#undef   ATOMIC_INT_LOCK_FREE
+#define  ATOMIC_INT_LOCK_FREE 		__GCC_ATOMIC_INT_LOCK_FREE
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLER__ */