Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / misc.S

diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 330c9dc7db8615f517863a5de438ad1623abe566..7b91602206985b0bf23a9b530f937b2b954f7fdb 100644 (file)
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -8,12 +8,17 @@
  * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
  * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
  *
+ * setjmp/longjmp code by Paul Mackerras.
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
 #include <asm/ppc_asm.h>
+#include <asm/unistd.h>
+#include <asm/asm-compat.h>
+#include <asm/asm-offsets.h>
 
        .text
 
@@ -43,3 +48,71 @@ _GLOBAL(add_reloc_offset)
        add     r3,r3,r5
        mtlr    r0
        blr
+
+_GLOBAL(kernel_execve)
+       li      r0,__NR_execve
+       sc
+       bnslr
+       neg     r3,r3
+       blr
+
+_GLOBAL(setjmp)
+       mflr    r0
+       PPC_STL r0,0(r3)
+       PPC_STL r1,SZL(r3)
+       PPC_STL r2,2*SZL(r3)
+       mfcr    r0
+       PPC_STL r0,3*SZL(r3)
+       PPC_STL r13,4*SZL(r3)
+       PPC_STL r14,5*SZL(r3)
+       PPC_STL r15,6*SZL(r3)
+       PPC_STL r16,7*SZL(r3)
+       PPC_STL r17,8*SZL(r3)
+       PPC_STL r18,9*SZL(r3)
+       PPC_STL r19,10*SZL(r3)
+       PPC_STL r20,11*SZL(r3)
+       PPC_STL r21,12*SZL(r3)
+       PPC_STL r22,13*SZL(r3)
+       PPC_STL r23,14*SZL(r3)
+       PPC_STL r24,15*SZL(r3)
+       PPC_STL r25,16*SZL(r3)
+       PPC_STL r26,17*SZL(r3)
+       PPC_STL r27,18*SZL(r3)
+       PPC_STL r28,19*SZL(r3)
+       PPC_STL r29,20*SZL(r3)
+       PPC_STL r30,21*SZL(r3)
+       PPC_STL r31,22*SZL(r3)
+       li      r3,0
+       blr
+
+_GLOBAL(longjmp)
+       PPC_LCMPI r4,0
+       bne     1f
+       li      r4,1
+1:     PPC_LL  r13,4*SZL(r3)
+       PPC_LL  r14,5*SZL(r3)
+       PPC_LL  r15,6*SZL(r3)
+       PPC_LL  r16,7*SZL(r3)
+       PPC_LL  r17,8*SZL(r3)
+       PPC_LL  r18,9*SZL(r3)
+       PPC_LL  r19,10*SZL(r3)
+       PPC_LL  r20,11*SZL(r3)
+       PPC_LL  r21,12*SZL(r3)
+       PPC_LL  r22,13*SZL(r3)
+       PPC_LL  r23,14*SZL(r3)
+       PPC_LL  r24,15*SZL(r3)
+       PPC_LL  r25,16*SZL(r3)
+       PPC_LL  r26,17*SZL(r3)
+       PPC_LL  r27,18*SZL(r3)
+       PPC_LL  r28,19*SZL(r3)
+       PPC_LL  r29,20*SZL(r3)
+       PPC_LL  r30,21*SZL(r3)
+       PPC_LL  r31,22*SZL(r3)
+       PPC_LL  r0,3*SZL(r3)
+       mtcrf   0x38,r0
+       PPC_LL  r0,0(r3)
+       PPC_LL  r1,SZL(r3)
+       PPC_LL  r2,2*SZL(r3)
+       mtlr    r0
+       mr      r3,r4
+       blr