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 <s...@canb.auug.org.au>
---
arch/powerpc/lib/crtsavres.S | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S
index 1c893f0..b2c68ce 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)
--
1.7.10.280.gaa39
--
Cheers,
Stephen Rothwell s...@canb.auug.org.au
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