[v5,04/27] x86: Add macro to get symbol address for PIE support
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Message ID 20180625224014.134829-5-thgarnie@google.com
State New
Headers show

Commit Message

Thomas Garnier June 25, 2018, 10:38 p.m. UTC
Add a new _ASM_MOVABS macro to fetch a symbol address. It will be used
to replace "_ASM_MOV $<symbol>, %dst" code construct that are not compatible
with PIE.

Signed-off-by: Thomas Garnier <thgarnie@google.com>
---
 arch/x86/include/asm/asm.h | 1 +
 1 file changed, 1 insertion(+)

Patch
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diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index 219faaec51df..4492a35fad69 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -30,6 +30,7 @@ 
 #define _ASM_ALIGN	__ASM_SEL(.balign 4, .balign 8)
 
 #define _ASM_MOV	__ASM_SIZE(mov)
+#define _ASM_MOVABS	__ASM_SEL(movl, movabsq)
 #define _ASM_INC	__ASM_SIZE(inc)
 #define _ASM_DEC	__ASM_SIZE(dec)
 #define _ASM_ADD	__ASM_SIZE(add)