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authorStephen Rothwell <sfr@canb.auug.org.au>2012-07-05 21:09:40 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-07-11 14:19:59 +1000
commit1d5a436d2ce9d1b65c905f69a33e78d69245993e (patch)
tree6a9609e6213ae60fc3f5e62ab2b6046bea1d8089 /arch/powerpc/lib
parent18ad51dd342a7eb09dbcd059d0b451b616d4dafc (diff)
downloadlinux-1d5a436d2ce9d1b65c905f69a33e78d69245993e.tar.bz2
powerpc: Put the gpr save/restore functions in their own section
This allows the linker to know that calls to them do not need to switch TOC and stop errors like the following when linking large configurations: powerpc64-linux-ld: drivers/built-in.o: In function `.gpiochip_is_requested': (.text+0x4): sibling call optimization to `_savegpr0_29' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `_savegpr0_29' extern Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/lib')
-rw-r--r--arch/powerpc/lib/crtsavres.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S
index 1c893f05d224..b2c68ce139ae 100644
--- a/arch/powerpc/lib/crtsavres.S
+++ b/arch/powerpc/lib/crtsavres.S
@@ -41,12 +41,13 @@
#include <asm/ppc_asm.h>
.file "crtsavres.S"
- .section ".text"
#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
#ifndef CONFIG_PPC64
+ .section ".text"
+
/* Routines for saving integer registers, called by the compiler. */
/* Called with r11 pointing to the stack header word of the caller of the */
/* function, just beyond the end of the integer save area. */
@@ -232,6 +233,8 @@ _GLOBAL(_rest32gpr_31_x)
#else /* CONFIG_PPC64 */
+ .section ".text.save.restore","ax",@progbits
+
.globl _savegpr0_14
_savegpr0_14:
std r14,-144(r1)