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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-11-26 15:21:04 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-01-02 16:17:40 -0500 |
| commit | 3fd996a29515df23b3f20c36d69788a3707254a9 (patch) | |
| tree | 7b6b4484ec5da2e1a63993705d978f50ac16b3ac /kernel/trace/trace_probe.c | |
| parent | 34fee3a104cea1c4b658e51836e4bcd99bd76c70 (diff) | |
| download | linux-3fd996a29515df23b3f20c36d69788a3707254a9.tar.gz linux-3fd996a29515df23b3f20c36d69788a3707254a9.tar.bz2 linux-3fd996a29515df23b3f20c36d69788a3707254a9.zip | |
tracing/probes: Implement 'stack' fetch method for uprobes
Use separate method to fetch from stack. Move existing functions to
trace_kprobe.c and make them static. Also add new stack fetch
implementation for uprobes.
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'kernel/trace/trace_probe.c')
| -rw-r--r-- | kernel/trace/trace_probe.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 541036ec7392..77aa7d18821e 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -70,16 +70,6 @@ __kprobes int PRINT_TYPE_FUNC_NAME(string)(struct trace_seq *s, const char PRINT_TYPE_FMT_NAME(string)[] = "\\\"%s\\\""; -/* - * Define macro for basic types - we don't need to define s* types, because - * we have to care only about bitwidth at recording time. - */ -#define DEFINE_BASIC_FETCH_FUNCS(method) \ -DEFINE_FETCH_##method(u8) \ -DEFINE_FETCH_##method(u16) \ -DEFINE_FETCH_##method(u32) \ -DEFINE_FETCH_##method(u64) - #define CHECK_FETCH_FUNCS(method, fn) \ (((FETCH_FUNC_NAME(method, u8) == fn) || \ (FETCH_FUNC_NAME(method, u16) == fn) || \ @@ -102,18 +92,6 @@ DEFINE_BASIC_FETCH_FUNCS(reg) #define fetch_reg_string NULL #define fetch_reg_string_size NULL -#define DEFINE_FETCH_stack(type) \ -__kprobes void FETCH_FUNC_NAME(stack, type)(struct pt_regs *regs, \ - void *offset, void *dest) \ -{ \ - *(type *)dest = (type)regs_get_kernel_stack_nth(regs, \ - (unsigned int)((unsigned long)offset)); \ -} -DEFINE_BASIC_FETCH_FUNCS(stack) -/* No string on the stack entry */ -#define fetch_stack_string NULL -#define fetch_stack_string_size NULL - #define DEFINE_FETCH_retval(type) \ __kprobes void FETCH_FUNC_NAME(retval, type)(struct pt_regs *regs, \ void *dummy, void *dest) \ |