01 Dec, 2020

1 commit

• 983df5f26   samples/ftrace: Mark my_tramp[12]? global ... Browse Code »

  my_tramp[12]? are declared as global functions in C, but they are not
  marked global in the inline assembly definition. This mismatch confuses
  Clang's Control-Flow Integrity checking. Fix the definitions by adding
  .globl.

  Link: https://lkml.kernel.org/r/20201113183414.1446671-1-samitolvanen@google.com

  Fixes: 9d907f1ae80b8 ("ftrace/samples: Add a sample module that implements modify_ftrace_direct()")
  Reviewed-by: Kees Cook
  Signed-off-by: Sami Tolvanen
  Signed-off-by: Steven Rostedt (VMware)

  Sami Tolvanen

  2020-12-01 10:42:48 +0800  

20 May, 2020

1 commit

• 9d907f1ae   samples/ftrace: Fix asm function ELF annotations ... Browse Code »

  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
  Signed-off-by: Josh Poimboeuf

  Josh Poimboeuf

  2020-05-20 21:30:43 +0800  

15 Nov, 2019

1 commit

• ae0cc3b7e   ftrace/samples: Add a sample module that implements modify_ftrace_direct() ... Browse Code »

  Add a sample module that tests modify_ftrace_direct(), and this can be used
  by the selftests as well.

  Signed-off-by: Steven Rostedt (VMware)

  Steven Rostedt (VMware)

  2019-11-15 11:45:47 +0800