diff options
Diffstat (limited to 'arch/powerpc/kernel/misc.S')
| -rw-r--r-- | arch/powerpc/kernel/misc.S | 77 |
1 files changed, 74 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S index 330c9dc7db8..7ce26d45777 100644 --- a/arch/powerpc/kernel/misc.S +++ b/arch/powerpc/kernel/misc.S @@ -5,15 +5,19 @@ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) * and Paul Mackerras. * - * 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 @@ -26,11 +30,14 @@ _GLOBAL(reloc_offset) mflr r0 bl 1f 1: mflr r3 - LOAD_REG_IMMEDIATE(r4,1b) + PPC_LL r4,(2f-1b)(r3) subf r3,r4,r3 mtlr r0 blr + .align 3 +2: PPC_LONG 1b + /* * add_reloc_offset(x) returns x + reloc_offset(). */ @@ -38,8 +45,72 @@ _GLOBAL(add_reloc_offset) mflr r0 bl 1f 1: mflr r5 - LOAD_REG_IMMEDIATE(r4,1b) + PPC_LL r4,(2f-1b)(r5) subf r5,r4,r5 add r3,r3,r5 mtlr r0 blr + + .align 3 +2: PPC_LONG 1b + +_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 |