diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-14 12:58:24 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-14 12:58:24 -0500 |
commit | d0316554d3586cbea60592a41391b5def2553d6f (patch) | |
tree | 5e7418f0bacbc68cec5dfd1541e03eb56870aa02 /arch/mn10300 | |
parent | fb0bbb92d42d5bd0ab224605444efdfed06d6934 (diff) | |
parent | 51e99be00ce2713cbb841cedc997cafa6e26c7f4 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
m68k: rename global variable vmalloc_end to m68k_vmalloc_end
percpu: add missing per_cpu_ptr_to_phys() definition for UP
percpu: Fix kdump failure if booted with percpu_alloc=page
percpu: make misc percpu symbols unique
percpu: make percpu symbols in ia64 unique
percpu: make percpu symbols in powerpc unique
percpu: make percpu symbols in x86 unique
percpu: make percpu symbols in xen unique
percpu: make percpu symbols in cpufreq unique
percpu: make percpu symbols in oprofile unique
percpu: make percpu symbols in tracer unique
percpu: make percpu symbols under kernel/ and mm/ unique
percpu: remove some sparse warnings
percpu: make alloc_percpu() handle array types
vmalloc: fix use of non-existent percpu variable in put_cpu_var()
this_cpu: Use this_cpu_xx in trace_functions_graph.c
this_cpu: Use this_cpu_xx for ftrace
this_cpu: Use this_cpu_xx in nmi handling
this_cpu: Use this_cpu operations in RCU
this_cpu: Use this_cpu ops for VM statistics
...
Fix up trivial (famous last words) global per-cpu naming conflicts in
arch/x86/kvm/svm.c
mm/slab.c
Diffstat (limited to 'arch/mn10300')
-rw-r--r-- | arch/mn10300/kernel/kprobes.c | 61 |
1 files changed, 30 insertions, 31 deletions
diff --git a/arch/mn10300/kernel/kprobes.c b/arch/mn10300/kernel/kprobes.c index dacafab00eb..67e6389d625 100644 --- a/arch/mn10300/kernel/kprobes.c +++ b/arch/mn10300/kernel/kprobes.c | |||
@@ -31,13 +31,13 @@ const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist); | |||
31 | #define KPROBE_HIT_ACTIVE 0x00000001 | 31 | #define KPROBE_HIT_ACTIVE 0x00000001 |
32 | #define KPROBE_HIT_SS 0x00000002 | 32 | #define KPROBE_HIT_SS 0x00000002 |
33 | 33 | ||
34 | static struct kprobe *current_kprobe; | 34 | static struct kprobe *cur_kprobe; |
35 | static unsigned long current_kprobe_orig_pc; | 35 | static unsigned long cur_kprobe_orig_pc; |
36 | static unsigned long current_kprobe_next_pc; | 36 | static unsigned long cur_kprobe_next_pc; |
37 | static int current_kprobe_ss_flags; | 37 | static int cur_kprobe_ss_flags; |
38 | static unsigned long kprobe_status; | 38 | static unsigned long kprobe_status; |
39 | static kprobe_opcode_t current_kprobe_ss_buf[MAX_INSN_SIZE + 2]; | 39 | static kprobe_opcode_t cur_kprobe_ss_buf[MAX_INSN_SIZE + 2]; |
40 | static unsigned long current_kprobe_bp_addr; | 40 | static unsigned long cur_kprobe_bp_addr; |
41 | 41 | ||
42 | DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; | 42 | DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; |
43 | 43 | ||
@@ -399,26 +399,25 @@ void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) | |||
399 | { | 399 | { |
400 | unsigned long nextpc; | 400 | unsigned long nextpc; |
401 | 401 | ||
402 | current_kprobe_orig_pc = regs->pc; | 402 | cur_kprobe_orig_pc = regs->pc; |
403 | memcpy(current_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE); | 403 | memcpy(cur_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE); |
404 | regs->pc = (unsigned long) current_kprobe_ss_buf; | 404 | regs->pc = (unsigned long) cur_kprobe_ss_buf; |
405 | 405 | ||
406 | nextpc = find_nextpc(regs, ¤t_kprobe_ss_flags); | 406 | nextpc = find_nextpc(regs, &cur_kprobe_ss_flags); |
407 | if (current_kprobe_ss_flags & SINGLESTEP_PCREL) | 407 | if (cur_kprobe_ss_flags & SINGLESTEP_PCREL) |
408 | current_kprobe_next_pc = | 408 | cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc); |
409 | current_kprobe_orig_pc + (nextpc - regs->pc); | ||
410 | else | 409 | else |
411 | current_kprobe_next_pc = nextpc; | 410 | cur_kprobe_next_pc = nextpc; |
412 | 411 | ||
413 | /* branching instructions need special handling */ | 412 | /* branching instructions need special handling */ |
414 | if (current_kprobe_ss_flags & SINGLESTEP_BRANCH) | 413 | if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) |
415 | nextpc = singlestep_branch_setup(regs); | 414 | nextpc = singlestep_branch_setup(regs); |
416 | 415 | ||
417 | current_kprobe_bp_addr = nextpc; | 416 | cur_kprobe_bp_addr = nextpc; |
418 | 417 | ||
419 | *(u8 *) nextpc = BREAKPOINT_INSTRUCTION; | 418 | *(u8 *) nextpc = BREAKPOINT_INSTRUCTION; |
420 | mn10300_dcache_flush_range2((unsigned) current_kprobe_ss_buf, | 419 | mn10300_dcache_flush_range2((unsigned) cur_kprobe_ss_buf, |
421 | sizeof(current_kprobe_ss_buf)); | 420 | sizeof(cur_kprobe_ss_buf)); |
422 | mn10300_icache_inv(); | 421 | mn10300_icache_inv(); |
423 | } | 422 | } |
424 | 423 | ||
@@ -440,7 +439,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs) | |||
440 | disarm_kprobe(p, regs); | 439 | disarm_kprobe(p, regs); |
441 | ret = 1; | 440 | ret = 1; |
442 | } else { | 441 | } else { |
443 | p = current_kprobe; | 442 | p = cur_kprobe; |
444 | if (p->break_handler && p->break_handler(p, regs)) | 443 | if (p->break_handler && p->break_handler(p, regs)) |
445 | goto ss_probe; | 444 | goto ss_probe; |
446 | } | 445 | } |
@@ -464,7 +463,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs) | |||
464 | } | 463 | } |
465 | 464 | ||
466 | kprobe_status = KPROBE_HIT_ACTIVE; | 465 | kprobe_status = KPROBE_HIT_ACTIVE; |
467 | current_kprobe = p; | 466 | cur_kprobe = p; |
468 | if (p->pre_handler(p, regs)) { | 467 | if (p->pre_handler(p, regs)) { |
469 | /* handler has already set things up, so skip ss setup */ | 468 | /* handler has already set things up, so skip ss setup */ |
470 | return 1; | 469 | return 1; |
@@ -491,8 +490,8 @@ no_kprobe: | |||
491 | static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) | 490 | static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) |
492 | { | 491 | { |
493 | /* we may need to fixup regs/stack after singlestepping a call insn */ | 492 | /* we may need to fixup regs/stack after singlestepping a call insn */ |
494 | if (current_kprobe_ss_flags & SINGLESTEP_BRANCH) { | 493 | if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) { |
495 | regs->pc = current_kprobe_orig_pc; | 494 | regs->pc = cur_kprobe_orig_pc; |
496 | switch (p->ainsn.insn[0]) { | 495 | switch (p->ainsn.insn[0]) { |
497 | case 0xcd: /* CALL (d16,PC) */ | 496 | case 0xcd: /* CALL (d16,PC) */ |
498 | *(unsigned *) regs->sp = regs->mdr = regs->pc + 5; | 497 | *(unsigned *) regs->sp = regs->mdr = regs->pc + 5; |
@@ -523,8 +522,8 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) | |||
523 | } | 522 | } |
524 | } | 523 | } |
525 | 524 | ||
526 | regs->pc = current_kprobe_next_pc; | 525 | regs->pc = cur_kprobe_next_pc; |
527 | current_kprobe_bp_addr = 0; | 526 | cur_kprobe_bp_addr = 0; |
528 | } | 527 | } |
529 | 528 | ||
530 | static inline int __kprobes post_kprobe_handler(struct pt_regs *regs) | 529 | static inline int __kprobes post_kprobe_handler(struct pt_regs *regs) |
@@ -532,10 +531,10 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs) | |||
532 | if (!kprobe_running()) | 531 | if (!kprobe_running()) |
533 | return 0; | 532 | return 0; |
534 | 533 | ||
535 | if (current_kprobe->post_handler) | 534 | if (cur_kprobe->post_handler) |
536 | current_kprobe->post_handler(current_kprobe, regs, 0); | 535 | cur_kprobe->post_handler(cur_kprobe, regs, 0); |
537 | 536 | ||
538 | resume_execution(current_kprobe, regs); | 537 | resume_execution(cur_kprobe, regs); |
539 | reset_current_kprobe(); | 538 | reset_current_kprobe(); |
540 | preempt_enable_no_resched(); | 539 | preempt_enable_no_resched(); |
541 | return 1; | 540 | return 1; |
@@ -545,12 +544,12 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs) | |||
545 | static inline | 544 | static inline |
546 | int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) | 545 | int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) |
547 | { | 546 | { |
548 | if (current_kprobe->fault_handler && | 547 | if (cur_kprobe->fault_handler && |
549 | current_kprobe->fault_handler(current_kprobe, regs, trapnr)) | 548 | cur_kprobe->fault_handler(cur_kprobe, regs, trapnr)) |
550 | return 1; | 549 | return 1; |
551 | 550 | ||
552 | if (kprobe_status & KPROBE_HIT_SS) { | 551 | if (kprobe_status & KPROBE_HIT_SS) { |
553 | resume_execution(current_kprobe, regs); | 552 | resume_execution(cur_kprobe, regs); |
554 | reset_current_kprobe(); | 553 | reset_current_kprobe(); |
555 | preempt_enable_no_resched(); | 554 | preempt_enable_no_resched(); |
556 | } | 555 | } |
@@ -567,7 +566,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, | |||
567 | 566 | ||
568 | switch (val) { | 567 | switch (val) { |
569 | case DIE_BREAKPOINT: | 568 | case DIE_BREAKPOINT: |
570 | if (current_kprobe_bp_addr != args->regs->pc) { | 569 | if (cur_kprobe_bp_addr != args->regs->pc) { |
571 | if (kprobe_handler(args->regs)) | 570 | if (kprobe_handler(args->regs)) |
572 | return NOTIFY_STOP; | 571 | return NOTIFY_STOP; |
573 | } else { | 572 | } else { |