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Commit cdc1793e authored by Jan Beulich's avatar Jan Beulich Committed by Linus Torvalds
Browse files

x86_64: ia32entry adjustments 



Consolidate the three 32-bit system call entry points so that they all
treat registers in similar ways.

Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c3508f8f

arch/x86_64/ia32/ia32entry.S

+3 −2
Original line number Diff line number Diff line
@@ -104,7 +104,7 @@ ENTRY(ia32_sysenter_target) 
	pushq	%rax

	CFI_ADJUST_CFA_OFFSET 8

	cld

	SAVE_ARGS 0,0,0

	SAVE_ARGS 0,0,1

 	/* no need to do an access_ok check here because rbp has been

 	   32bit zero extended */ 

1:	movl	(%rbp),%r9d
@@ -294,7 +294,7 @@ ia32_badarg: 
 */ 				



ENTRY(ia32_syscall)

	CFI_STARTPROC	simple

	CFI_STARTPROC32	simple

	CFI_SIGNAL_FRAME

	CFI_DEF_CFA	rsp,SS+8-RIP

	/*CFI_REL_OFFSET	ss,SS-RIP*/
@@ -330,6 +330,7 @@ ia32_sysret: 


ia32_tracesys:			 

	SAVE_REST

	CLEAR_RREGS

	movq $-ENOSYS,RAX(%rsp)	/* really needed? */

	movq %rsp,%rdi        /* &pt_regs -> arg1 */

	call syscall_trace_enter