From 001056f560dfec46aa98659f318819cce7098e5b Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Fri, 14 Jun 2013 15:53:23 -0700 Subject: [PATCH] ARM: Tell the linker memset and memcpy are functions. The memset and memcpy functions are assembled as ARM code, likely because that's the default of the assembler. Without special annotation, the assembler and linker don't know that those symbols are functions which need special handling so that ARM/thumb issues are handled properly. This change adds that annotation which gets those functions working in Coreboot which is compiled as thumb. Libpayload and depthcharge are compiled as ARM so they don't *need* the annotation since it just works out in ARM mode, but it's the safe thing to do in case we change that in the future. We should explicitly select ARM vs. thumb when assembling assembly files to be consistent across builds and toolchains. Change-Id: I814b137064cf46ae9e2744ff6c223b695dc1ef01 Signed-off-by: Gabe Black Reviewed-on: http://review.coreboot.org/3672 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- payloads/libpayload/arch/armv7/memcpy.S | 1 + payloads/libpayload/arch/armv7/memset.S | 1 + src/arch/armv7/memcpy.S | 1 + src/arch/armv7/memset.S | 1 + 4 files changed, 4 insertions(+) diff --git a/payloads/libpayload/arch/armv7/memcpy.S b/payloads/libpayload/arch/armv7/memcpy.S index 549320c8d1..e68b28f542 100644 --- a/payloads/libpayload/arch/armv7/memcpy.S +++ b/payloads/libpayload/arch/armv7/memcpy.S @@ -57,6 +57,7 @@ /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ +.type memcpy, function .globl memcpy memcpy: diff --git a/payloads/libpayload/arch/armv7/memset.S b/payloads/libpayload/arch/armv7/memset.S index 4ff4c3ce93..aa4f57a993 100644 --- a/payloads/libpayload/arch/armv7/memset.S +++ b/payloads/libpayload/arch/armv7/memset.S @@ -27,6 +27,7 @@ * memset again. */ +.type memset, function .globl memset memset: ands r3, r0, #3 @ 1 unaligned? diff --git a/src/arch/armv7/memcpy.S b/src/arch/armv7/memcpy.S index f04113f279..921fc2a6bc 100644 --- a/src/arch/armv7/memcpy.S +++ b/src/arch/armv7/memcpy.S @@ -57,6 +57,7 @@ /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ +.type memcpy, function .globl memcpy memcpy: diff --git a/src/arch/armv7/memset.S b/src/arch/armv7/memset.S index 3ea2721227..a3cc9477f8 100644 --- a/src/arch/armv7/memset.S +++ b/src/arch/armv7/memset.S @@ -27,6 +27,7 @@ * memset again. */ +.type memset, function .globl memset memset: ands r3, r0, #3 @ 1 unaligned?