linux-next: manual merge of the signal tree with the sparc tree

linux-next: manual merge of the signal tree with the sparc tree

[Stephen Rothwell]

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Hi Al,

Today's linux-next merge of the signal tree got a conflict in
arch/sparc/kernel/sys_sparc_64.c between commit 517ffce4e1a0 ("sparc64:
Make montmul/montsqr/mpmul usable in 32-bit threads") from the sparc tree
and commit 2f12af35a988 ("sparc64: switch to generic kernel_execve()")
from the signal tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

diff --cc arch/sparc/kernel/sys_sparc_64.c
index 878ef3d,adfe60e..0000000
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@@ -729,30 -729,3 +729,8 @@@ SYSCALL_DEFINE5(rt_sigaction, int, sig
  
  	return ret;
  }
 +
- /*
-  * Do a system call from kernel instead of calling sys_execve so we
-  * end up with proper pt_regs.
-  */
- int kernel_execve(const char *filename,
- 		  const char *const argv[],
- 		  const char *const envp[])
- {
- 	long __res;
- 	register long __g1 __asm__ ("g1") = __NR_execve;
- 	register long __o0 __asm__ ("o0") = (long)(filename);
- 	register long __o1 __asm__ ("o1") = (long)(argv);
- 	register long __o2 __asm__ ("o2") = (long)(envp);
- 	asm volatile ("t 0x6d\n\t"
- 		      "sub %%g0, %%o0, %0\n\t"
- 		      "movcc %%xcc, %%o0, %0\n\t"
- 		      : "=r" (__res), "=&r" (__o0)
- 		      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1)
- 		      : "cc");
- 	return __res;
- }
- 
 +asmlinkage long sys_kern_features(void)
 +{
 +	return KERN_FEATURE_MIXED_MODE_STACK;
 +}

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Re: linux-next: manual merge of the signal tree with the sparc tree

[David Miller]

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 29 Oct 2012 14:00:32 +1100

> Today's linux-next merge of the signal tree got a conflict in
> arch/sparc/kernel/sys_sparc_64.c between commit 517ffce4e1a0 ("sparc64:
> Make montmul/montsqr/mpmul usable in 32-bit threads") from the sparc tree
> and commit 2f12af35a988 ("sparc64: switch to generic kernel_execve()")
> from the signal tree.
> 
> I fixed it up (see below) and can carry the fix as necessary (no action
> is required).

I intend to pull the sparc tree into sparc-next, then pull the sparc
branch from Al's tree into sparc-next to fix this up.