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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 13:20:25 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 13:20:25 -0500 |
commit | 6556a6743549defc32e5f90ee2cb1ecd833a44c3 (patch) | |
tree | 622306583d4a3c13235a8bfc012854c125c597f1 /arch/x86/kernel/ptrace.c | |
parent | e0d272429a34ff143bfa04ee8e29dd4eed2964c7 (diff) | |
parent | 1dd2980d990068e20045b90c424518cc7f3657ff (diff) |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (172 commits)
perf_event, amd: Fix spinlock initialization
perf_event: Fix preempt warning in perf_clock()
perf tools: Flush maps on COMM events
perf_events, x86: Split PMU definitions into separate files
perf annotate: Handle samples not at objdump output addr boundaries
perf_events, x86: Remove superflous MSR writes
perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in()
perf_events, x86: AMD event scheduling
perf_events: Add new start/stop PMU callbacks
perf_events: Report the MMAP pgoff value in bytes
perf annotate: Defer allocating sym_priv->hist array
perf symbols: Improve debugging information about symtab origins
perf top: Use a macro instead of a constant variable
perf symbols: Check the right return variable
perf/scripts: Tag syscall_name helper as not yet available
perf/scripts: Add perf-trace-python Documentation
perf/scripts: Remove unnecessary PyTuple resizes
perf/scripts: Add syscall tracing scripts
perf/scripts: Add Python scripting engine
perf/scripts: Remove check-perf-trace from listed scripts
...
Fix trivial conflict in tools/perf/util/probe-event.c
Diffstat (limited to 'arch/x86/kernel/ptrace.c')
-rw-r--r-- | arch/x86/kernel/ptrace.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 0c1033d61e59..d03146f71b2f 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c | |||
@@ -140,30 +140,6 @@ static const int arg_offs_table[] = { | |||
140 | #endif | 140 | #endif |
141 | }; | 141 | }; |
142 | 142 | ||
143 | /** | ||
144 | * regs_get_argument_nth() - get Nth argument at function call | ||
145 | * @regs: pt_regs which contains registers at function entry. | ||
146 | * @n: argument number. | ||
147 | * | ||
148 | * regs_get_argument_nth() returns @n th argument of a function call. | ||
149 | * Since usually the kernel stack will be changed right after function entry, | ||
150 | * you must use this at function entry. If the @n th entry is NOT in the | ||
151 | * kernel stack or pt_regs, this returns 0. | ||
152 | */ | ||
153 | unsigned long regs_get_argument_nth(struct pt_regs *regs, unsigned int n) | ||
154 | { | ||
155 | if (n < ARRAY_SIZE(arg_offs_table)) | ||
156 | return *(unsigned long *)((char *)regs + arg_offs_table[n]); | ||
157 | else { | ||
158 | /* | ||
159 | * The typical case: arg n is on the stack. | ||
160 | * (Note: stack[0] = return address, so skip it) | ||
161 | */ | ||
162 | n -= ARRAY_SIZE(arg_offs_table); | ||
163 | return regs_get_kernel_stack_nth(regs, 1 + n); | ||
164 | } | ||
165 | } | ||
166 | |||
167 | /* | 143 | /* |
168 | * does not yet catch signals sent when the child dies. | 144 | * does not yet catch signals sent when the child dies. |
169 | * in exit.c or in signal.c. | 145 | * in exit.c or in signal.c. |