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| author | Alan Kao <alankao@andestech.com> | 2018-02-13 13:13:16 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2018-04-02 19:59:10 -0700 |
| commit | a1d2a6b4cee858a2f27eebce731fbf1dfd72cb4e (patch) | |
| tree | 02678da661691d5576560c22f7aa62621d3773c2 /scripts/recordmcount.pl | |
| parent | 0adb32858b0bddf4ada5f364a84ed60b196dbcda (diff) | |
| download | lwn-a1d2a6b4cee858a2f27eebce731fbf1dfd72cb4e.tar.gz lwn-a1d2a6b4cee858a2f27eebce731fbf1dfd72cb4e.zip | |
riscv/ftrace: Add RECORD_MCOUNT support
Now recordmcount.pl recognizes RISC-V object files. For the mechanism to
work, we have to disable the linker relaxation.
Cc: Greentime Hu <greentime@andestech.com>
Signed-off-by: Alan Kao <alankao@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'scripts/recordmcount.pl')
| -rwxr-xr-x | scripts/recordmcount.pl | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 2033af758173..d44d55db7c06 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -376,6 +376,11 @@ if ($arch eq "x86_64") { $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s__mcount\$"; $type = ".quad"; $alignment = 8; +} elsif ($arch eq "riscv") { + $function_regex = "^([0-9a-fA-F]+)\\s+<([^.0-9][0-9a-zA-Z_\\.]+)>:"; + $mcount_regex = "^\\s*([0-9a-fA-F]+):\\sR_RISCV_CALL\\s_mcount\$"; + $type = ".quad"; + $alignment = 2; } else { die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD"; } |