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authorH.J. Lu <hjl.tools@gmail.com>2018-08-06 06:25:28 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-08-06 06:25:43 -0700
commitfb4c32aef64500c65c7fc95ca06d7e17d467be45 (patch)
treeeef59c6f48555419272cc88b68fbce8d42d6a001 /sysdeps/x86/sysdep.h
parente5721f45f6377c27ccb2572001dc98f7a2e6a146 (diff)
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x86: Move STATE_SAVE_OFFSET/STATE_SAVE_MASK to sysdep.h
Move STATE_SAVE_OFFSET and STATE_SAVE_MASK to sysdep.h to make
sysdeps/x86/cpu-features.h a C header file.

	* sysdeps/x86/cpu-features.h (STATE_SAVE_OFFSET): Removed.
	(STATE_SAVE_MASK): Likewise.
	Don't check __ASSEMBLER__ to include <cpu-features-offsets.h>.
	* sysdeps/x86/sysdep.h (STATE_SAVE_OFFSET): New.
	(STATE_SAVE_MASK): Likewise.
	* sysdeps/x86_64/dl-trampoline.S: Include <cpu-features-offsets.h>
	instead of <cpu-features.h>.
Diffstat (limited to 'sysdeps/x86/sysdep.h')
-rw-r--r--sysdeps/x86/sysdep.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/x86/sysdep.h b/sysdeps/x86/sysdep.h
index 8776ad8374..f41f4ebd42 100644
--- a/sysdeps/x86/sysdep.h
+++ b/sysdeps/x86/sysdep.h
@@ -48,6 +48,15 @@ enum cf_protection_level
 # define SHSTK_ENABLED	0
 #endif
 
+/* Offset for fxsave/xsave area used by _dl_runtime_resolve.  Also need
+   space to preserve RCX, RDX, RSI, RDI, R8, R9 and RAX.  It must be
+   aligned to 16 bytes for fxsave and 64 bytes for xsave.  */
+#define STATE_SAVE_OFFSET (8 * 7 + 8)
+
+/* Save SSE, AVX, AVX512, mask and bound registers.  */
+#define STATE_SAVE_MASK \
+  ((1 << 1) | (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | (1 << 7))
+
 #ifdef	__ASSEMBLER__
 
 /* Syntactic details of assembler.  */