diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/kernel/ptrace.c | 90 | ||||
| -rw-r--r-- | arch/arc/kernel/signal.c | 56 |
2 files changed, 137 insertions, 9 deletions
diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c index 13b3ffb27a38..4dd9e3a8c2da 100644 --- a/arch/arc/kernel/ptrace.c +++ b/arch/arc/kernel/ptrace.c @@ -47,10 +47,47 @@ static int genregs_get(struct task_struct *target, offsetof(struct user_regs_struct, LOC) + 4); REG_O_ZERO(pad); - REG_O_CHUNK(scratch, callee, ptregs); + REG_O_ONE(scratch.bta, &ptregs->bta); + REG_O_ONE(scratch.lp_start, &ptregs->lp_start); + REG_O_ONE(scratch.lp_end, &ptregs->lp_end); + REG_O_ONE(scratch.lp_count, &ptregs->lp_count); + REG_O_ONE(scratch.status32, &ptregs->status32); + REG_O_ONE(scratch.ret, &ptregs->ret); + REG_O_ONE(scratch.blink, &ptregs->blink); + REG_O_ONE(scratch.fp, &ptregs->fp); + REG_O_ONE(scratch.gp, &ptregs->r26); + REG_O_ONE(scratch.r12, &ptregs->r12); + REG_O_ONE(scratch.r11, &ptregs->r11); + REG_O_ONE(scratch.r10, &ptregs->r10); + REG_O_ONE(scratch.r9, &ptregs->r9); + REG_O_ONE(scratch.r8, &ptregs->r8); + REG_O_ONE(scratch.r7, &ptregs->r7); + REG_O_ONE(scratch.r6, &ptregs->r6); + REG_O_ONE(scratch.r5, &ptregs->r5); + REG_O_ONE(scratch.r4, &ptregs->r4); + REG_O_ONE(scratch.r3, &ptregs->r3); + REG_O_ONE(scratch.r2, &ptregs->r2); + REG_O_ONE(scratch.r1, &ptregs->r1); + REG_O_ONE(scratch.r0, &ptregs->r0); + REG_O_ONE(scratch.sp, &ptregs->sp); + REG_O_ZERO(pad2); - REG_O_CHUNK(callee, efa, cregs); - REG_O_CHUNK(efa, stop_pc, &target->thread.fault_address); + + REG_O_ONE(callee.r25, &cregs->r25); + REG_O_ONE(callee.r24, &cregs->r24); + REG_O_ONE(callee.r23, &cregs->r23); + REG_O_ONE(callee.r22, &cregs->r22); + REG_O_ONE(callee.r21, &cregs->r21); + REG_O_ONE(callee.r20, &cregs->r20); + REG_O_ONE(callee.r19, &cregs->r19); + REG_O_ONE(callee.r18, &cregs->r18); + REG_O_ONE(callee.r17, &cregs->r17); + REG_O_ONE(callee.r16, &cregs->r16); + REG_O_ONE(callee.r15, &cregs->r15); + REG_O_ONE(callee.r14, &cregs->r14); + REG_O_ONE(callee.r13, &cregs->r13); + + REG_O_ONE(efa, &target->thread.fault_address); if (!ret) { if (in_brkpt_trap(ptregs)) { @@ -97,12 +134,51 @@ static int genregs_set(struct task_struct *target, offsetof(struct user_regs_struct, LOC) + 4); REG_IGNORE_ONE(pad); - /* TBD: disallow updates to STATUS32 etc*/ - REG_IN_CHUNK(scratch, pad2, ptregs); /* pt_regs[bta..sp] */ + + REG_IN_ONE(scratch.bta, &ptregs->bta); + REG_IN_ONE(scratch.lp_start, &ptregs->lp_start); + REG_IN_ONE(scratch.lp_end, &ptregs->lp_end); + REG_IN_ONE(scratch.lp_count, &ptregs->lp_count); + + REG_IGNORE_ONE(scratch.status32); + + REG_IN_ONE(scratch.ret, &ptregs->ret); + REG_IN_ONE(scratch.blink, &ptregs->blink); + REG_IN_ONE(scratch.fp, &ptregs->fp); + REG_IN_ONE(scratch.gp, &ptregs->r26); + REG_IN_ONE(scratch.r12, &ptregs->r12); + REG_IN_ONE(scratch.r11, &ptregs->r11); + REG_IN_ONE(scratch.r10, &ptregs->r10); + REG_IN_ONE(scratch.r9, &ptregs->r9); + REG_IN_ONE(scratch.r8, &ptregs->r8); + REG_IN_ONE(scratch.r7, &ptregs->r7); + REG_IN_ONE(scratch.r6, &ptregs->r6); + REG_IN_ONE(scratch.r5, &ptregs->r5); + REG_IN_ONE(scratch.r4, &ptregs->r4); + REG_IN_ONE(scratch.r3, &ptregs->r3); + REG_IN_ONE(scratch.r2, &ptregs->r2); + REG_IN_ONE(scratch.r1, &ptregs->r1); + REG_IN_ONE(scratch.r0, &ptregs->r0); + REG_IN_ONE(scratch.sp, &ptregs->sp); + REG_IGNORE_ONE(pad2); - REG_IN_CHUNK(callee, efa, cregs); /* callee_regs[r25..r13] */ + + REG_IN_ONE(callee.r25, &cregs->r25); + REG_IN_ONE(callee.r24, &cregs->r24); + REG_IN_ONE(callee.r23, &cregs->r23); + REG_IN_ONE(callee.r22, &cregs->r22); + REG_IN_ONE(callee.r21, &cregs->r21); + REG_IN_ONE(callee.r20, &cregs->r20); + REG_IN_ONE(callee.r19, &cregs->r19); + REG_IN_ONE(callee.r18, &cregs->r18); + REG_IN_ONE(callee.r17, &cregs->r17); + REG_IN_ONE(callee.r16, &cregs->r16); + REG_IN_ONE(callee.r15, &cregs->r15); + REG_IN_ONE(callee.r14, &cregs->r14); + REG_IN_ONE(callee.r13, &cregs->r13); + REG_IGNORE_ONE(efa); /* efa update invalid */ - REG_IGNORE_ONE(stop_pc); /* PC updated via @ret */ + REG_IGNORE_ONE(stop_pc); /* PC updated via @ret */ return ret; } diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c index 2251fb4bbfd7..b15d2fe9c461 100644 --- a/arch/arc/kernel/signal.c +++ b/arch/arc/kernel/signal.c @@ -67,7 +67,33 @@ stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs, sigset_t *set) { int err; - err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), regs, + struct user_regs_struct uregs; + + uregs.scratch.bta = regs->bta; + uregs.scratch.lp_start = regs->lp_start; + uregs.scratch.lp_end = regs->lp_end; + uregs.scratch.lp_count = regs->lp_count; + uregs.scratch.status32 = regs->status32; + uregs.scratch.ret = regs->ret; + uregs.scratch.blink = regs->blink; + uregs.scratch.fp = regs->fp; + uregs.scratch.gp = regs->r26; + uregs.scratch.r12 = regs->r12; + uregs.scratch.r11 = regs->r11; + uregs.scratch.r10 = regs->r10; + uregs.scratch.r9 = regs->r9; + uregs.scratch.r8 = regs->r8; + uregs.scratch.r7 = regs->r7; + uregs.scratch.r6 = regs->r6; + uregs.scratch.r5 = regs->r5; + uregs.scratch.r4 = regs->r4; + uregs.scratch.r3 = regs->r3; + uregs.scratch.r2 = regs->r2; + uregs.scratch.r1 = regs->r1; + uregs.scratch.r0 = regs->r0; + uregs.scratch.sp = regs->sp; + + err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), &uregs.scratch, sizeof(sf->uc.uc_mcontext.regs.scratch)); err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t)); @@ -78,14 +104,40 @@ static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf) { sigset_t set; int err; + struct user_regs_struct uregs; err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set)); if (!err) set_current_blocked(&set); - err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs.scratch), + err |= __copy_from_user(&uregs.scratch, + &(sf->uc.uc_mcontext.regs.scratch), sizeof(sf->uc.uc_mcontext.regs.scratch)); + regs->bta = uregs.scratch.bta; + regs->lp_start = uregs.scratch.lp_start; + regs->lp_end = uregs.scratch.lp_end; + regs->lp_count = uregs.scratch.lp_count; + regs->status32 = uregs.scratch.status32; + regs->ret = uregs.scratch.ret; + regs->blink = uregs.scratch.blink; + regs->fp = uregs.scratch.fp; + regs->r26 = uregs.scratch.gp; + regs->r12 = uregs.scratch.r12; + regs->r11 = uregs.scratch.r11; + regs->r10 = uregs.scratch.r10; + regs->r9 = uregs.scratch.r9; + regs->r8 = uregs.scratch.r8; + regs->r7 = uregs.scratch.r7; + regs->r6 = uregs.scratch.r6; + regs->r5 = uregs.scratch.r5; + regs->r4 = uregs.scratch.r4; + regs->r3 = uregs.scratch.r3; + regs->r2 = uregs.scratch.r2; + regs->r1 = uregs.scratch.r1; + regs->r0 = uregs.scratch.r0; + regs->sp = uregs.scratch.sp; + return err; } |