Changeset d6b81941 in mainline for kernel/arch/amd64/src/asm.S

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/arch/amd64/src/asm.S (modified) (3 diffs)

kernel/arch/amd64/src/asm.S

@@ -37 +37 @@
 .global read_efer_flag
 .global set_efer_flag
-.global memsetb
-.global memsetw
-.global memcpy
 .global memcpy_from_uspace
 .global memcpy_to_uspace
@@ -46 +43 @@
 .global early_putchar
 
-/* Wrapper for generic memsetb */
-memsetb:
-        jmp _memsetb
-
-/* Wrapper for generic memsetw */
-memsetw:
-        jmp _memsetw
-
 #define MEMCPY_DST   %rdi
 #define MEMCPY_SRC   %rsi
@@ -74 +63 @@
  *
  */
-memcpy:
 memcpy_from_uspace:
 memcpy_to_uspace: