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OpenCloudOS-Kernel
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2 Commits

Author SHA1 Message Date
Josh Poimboeuf 9d907f1ae8 samples/ftrace: Fix asm function ELF annotations 
Enable objtool coverage for the sample ftrace modules by adding ELF
annotations to the asm trampoline functions.

  samples/ftrace/ftrace-direct.o: warning: objtool: .text+0x0: unreachable instruction
  samples/ftrace/ftrace-direct-modify.o: warning: objtool: .text+0x0: unreachable instruction
  samples/ftrace/ftrace-direct-too.o: warning: objtool: .text+0x0: unreachable instruction

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
 2020-05-20 08:30:43 -05:00
Steven Rostedt (VMware) 156473a0ff ftrace: Add another example of register_ftrace_direct() use case 
Add another module sample that registers a direct trampoline to a function
via register_ftrace_direct(). Having another module that does this allows to
test the use case of multiple direct callers registered, as more than one
direct caller goes into another path, and is needed to perform proper
testing of the register_ftrace_direct() call.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
 2019-11-13 09:36:49 -05:00