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c6x: switch to generic kernel_execve

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Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Mark Salter 2012-09-21 12:26:38 -04:00 • committed by Al Viro
parent 46f15067c0
commit 39fcf44099
2 changed files with 8 additions and 7 deletions
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2
arch/c6x/include/asm/unistd.h
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@ -16,6 +16,8 @@
#if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL) #if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL)
#define _ASM_C6X_UNISTD_H #define _ASM_C6X_UNISTD_H
#define __ARCH_WANT_KERNEL_EXECVE
/* Use the standard ABI for syscalls. */ /* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h> #include <asm-generic/unistd.h>

13
arch/c6x/kernel/entry.S
View file

@ -420,6 +420,12 @@ ENTRY(ret_from_kernel_thread)
BNOP .S2 B11,5 /* jump to sys_exit */ BNOP .S2 B11,5 /* jump to sys_exit */
ENDPROC(ret_from_kernel_thread) ENDPROC(ret_from_kernel_thread)
ENTRY(ret_from_kernel_execve)
GET_THREAD_INFO A12
BNOP .S2 syscall_exit,4
ADD .D2X A4,-8,SP
ENDPROC(ret_from_kernel_execve)
;; ;;
;; These are the interrupt handlers, responsible for calling __do_IRQ() ;; These are the interrupt handlers, responsible for calling __do_IRQ()
;; int6 is used for syscalls (see _system_call entry) ;; int6 is used for syscalls (see _system_call entry)
@ -613,13 +619,6 @@ ENTRY(sys_sigaltstack)
NOP 4 NOP 4
ENDPROC(sys_sigaltstack) ENDPROC(sys_sigaltstack)
;; kernel_execve
ENTRY(kernel_execve)
MVK .S2 __NR_execve,B0
SWE
BNOP .S2 B3,5
ENDPROC(kernel_execve)
;; ;;
;; Special system calls ;; Special system calls
;; return address is in B3 ;; return address is in B3