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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2006-10-02 02:18:46 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 07:57:24 -0700
commitc5f2420a063fcc5a4cd6610c3ef6934827853001 (patch)
tree2fe3b65e20ea176f23cdb6954d8c958d10e43c1d /arch/avr32
parent135ab6ec8fdad6f61aabe53f456821baf4a4aa0e (diff)
downloadop-kernel-dev-c5f2420a063fcc5a4cd6610c3ef6934827853001.zip
op-kernel-dev-c5f2420a063fcc5a4cd6610c3ef6934827853001.tar.gz
[PATCH] AVR32: Implement kernel_execve
Move execve() into arch/avr32/kernel/sys_avr32.c, rename it to kernel_execve() and return the syscall return value directly without setting errno. This also gets rid of the __KERNEL_SYSCALLS__ stuff from unistd.h and expands #ifdef __KERNEL__ to cover everything in unistd.h except the __NR_foo definitions. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/kernel/sys_avr32.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
index 6ec5693..8deb600 100644
--- a/arch/avr32/kernel/sys_avr32.c
+++ b/arch/avr32/kernel/sys_avr32.c
@@ -49,3 +49,17 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
fput(file);
return error;
}
+
+int kernel_execve(const char *file, char **argv, char **envp)
+{
+ register long scno asm("r8") = __NR_execve;
+ register long sc1 asm("r12") = (long)file;
+ register long sc2 asm("r11") = (long)argv;
+ register long sc3 asm("r10") = (long)envp;
+
+ asm volatile("scall"
+ : "=r"(sc1)
+ : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
+ : "cc", "memory");
+ return sc1;
+}
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