Changeset d6b81941 in mainline for kernel/generic/include/memstr.h

Timestamp:

2011-03-29T21:59:55Z (13 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

563b538, ad7a6c9

Parents:

ebebd38 (diff), 3abfe9a8 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge toolchain upgrade and related changes. Highlights:

• GCC 4.6, binutils 2.21
• change the default CROSS_PREFIX to /usr/local/cross to avoid ugly pollution in the /usr/local directory (closes #252)
• amd64: use a silly workaround to avoid possible GCC 4.6 bug (going to report to GCC's bugzilla)
• toolchain.sh now supports parallel toolchain build (i.e. all targets at once)
• improve linker scripts to support the newest compiler input sections
• remove unused variables and other various fixes for GCC 4.6 warnings (GCC 4.5.1 also passes compilation)
• unification of kernel memcpy() and memstr() functions (use compiler builtins whenever possible, keep plain C fallback implementations in a sepearate object file)

File:

• kernel/generic/include/memstr.h (modified) (1 diff)

kernel/generic/include/memstr.h

@@ -37 +37 @@
 
 #include <typedefs.h>
-#include <arch/memstr.h>
 
-/*
- * Architecture independent variants.
- */
-extern void *_memcpy(void *dst, const void *src, size_t cnt);
-extern void _memsetb(void *dst, size_t cnt, uint8_t x);
-extern void _memsetw(void *dst, size_t cnt, uint16_t x);
-extern void *memmove(void *dst, const void *src, size_t cnt);
+#define memset(dst, val, cnt)  __builtin_memset((dst), (val), (cnt))
+#define memcpy(dst, src, cnt)  __builtin_memcpy((dst), (src), (cnt))
+
+extern void memsetb(void *, size_t, uint8_t);
+extern void memsetw(void *, size_t, uint16_t);
+extern void *memmove(void *, const void *, size_t);
 
 #endif