Changbin Du
6870c0165f
scripts/faddr2line: show the code context
Inspired by gdb command 'list', show the code context of target lines.
Here is a example:
$ scripts/faddr2line vmlinux native_write_msr+0x6
native_write_msr+0x6/0x20:
arch_static_branch at arch/x86/include/asm/msr.h:105
100 return EAX_EDX_VAL(val, low, high);
101 }
102
103 static inline void notrace __wrmsr(unsigned int msr, u32 low, u32 high)
104 {
105 asm volatile("1: wrmsr\n"
106 "2:\n"
107 _ASM_EXTABLE_HANDLE(1b, 2b, ex_handler_wrmsr_unsafe)
108 : : "c" (msr), "a"(low), "d" (high) : "memory");
109 }
110
(inlined by) static_key_false at include/linux/jump_label.h:142
137 #define JUMP_TYPE_LINKED 2UL
138 #define JUMP_TYPE_MASK 3UL
139
140 static __always_inline bool static_key_false(struct static_key *key)
141 {
142 return arch_static_branch(key, false);
143 }
144
145 static __always_inline bool static_key_true(struct static_key *key)
146 {
147 return !arch_static_branch(key, true);
(inlined by) native_write_msr at arch/x86/include/asm/msr.h:150
145 static inline void notrace
146 native_write_msr(unsigned int msr, u32 low, u32 high)
147 {
148 __wrmsr(msr, low, high);
149
150 if (msr_tracepoint_active(__tracepoint_write_msr))
151 do_trace_write_msr(msr, ((u64)high << 32 | low), 0);
152 }
153
154 /* Can be uninlined because referenced by paravirt */
155 static inline int notrace
Link: http://lkml.kernel.org/r/1521444205-2259-1-git-send-email-changbin.du@intel.com
Signed-off-by: Changbin Du <changbin.du@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-05 21:36:21 -07:00
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