diff options
| author | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 00:24:54 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 00:24:54 -0400 |
| commit | bc95f3669f5e6f63cf0b84fe4922c3c6dd4aa775 (patch) | |
| tree | 427fcf2a7287c16d4b5aa6cbf494d59579a6a8b1 /arch/powerpc/lib/sstep.c | |
| parent | 3d29cdff999c37b3876082278a8134a0642a02cd (diff) | |
| parent | dc87c3985e9b442c60994308a96f887579addc39 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/usb/input/Makefile
drivers/usb/input/gtco.c
Diffstat (limited to 'arch/powerpc/lib/sstep.c')
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 7e8ded051b5b..4aae0c387645 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -54,7 +54,7 @@ static int __kprobes branch_taken(unsigned int instr, struct pt_regs *regs) */ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) { - unsigned int opcode, rd; + unsigned int opcode, rs, rb, rd, spr; unsigned long int imm; opcode = instr >> 26; @@ -152,6 +152,49 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) regs->nip &= 0xffffffffUL; return 1; #endif + case 0x26: /* mfcr */ + regs->gpr[rd] = regs->ccr; + regs->gpr[rd] &= 0xffffffffUL; + goto mtspr_out; + case 0x2a6: /* mfspr */ + spr = (instr >> 11) & 0x3ff; + switch (spr) { + case 0x20: /* mfxer */ + regs->gpr[rd] = regs->xer; + regs->gpr[rd] &= 0xffffffffUL; + goto mtspr_out; + case 0x100: /* mflr */ + regs->gpr[rd] = regs->link; + goto mtspr_out; + case 0x120: /* mfctr */ + regs->gpr[rd] = regs->ctr; + goto mtspr_out; + } + break; + case 0x378: /* orx */ + rs = (instr >> 21) & 0x1f; + rb = (instr >> 11) & 0x1f; + if (rs == rb) { /* mr */ + rd = (instr >> 16) & 0x1f; + regs->gpr[rd] = regs->gpr[rs]; + goto mtspr_out; + } + break; + case 0x3a6: /* mtspr */ + spr = (instr >> 11) & 0x3ff; + switch (spr) { + case 0x20: /* mtxer */ + regs->xer = (regs->gpr[rd] & 0xffffffffUL); + goto mtspr_out; + case 0x100: /* mtlr */ + regs->link = regs->gpr[rd]; + goto mtspr_out; + case 0x120: /* mtctr */ + regs->ctr = regs->gpr[rd]; +mtspr_out: + regs->nip += 4; + return 1; + } } } return 0; |