Thread (46 messages) 46 messages, 7 authors, 2018-05-29

[PATCH v3 04/27] x86: Add macro to get symbol address for PIE support

flat view
STALE3056d

From: Thomas Garnier <hidden>
Date: 2018-05-23 19:53:58
Also in: kvm, linux-arch, linux-pm, xen-devel
Subsystem: the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

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 <redacted>
---
 arch/x86/include/asm/asm.h | 1 +
 1 file changed, 1 insertion(+)
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)
-- 
2.17.0.441.gb46fe60e1d-goog


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help