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It's been reported that function tracing does not work on the sh architecture

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because gcc 4.8 for superH does not support -m32, and the recordmcount.pl
 script adds "-m32" when re-compiling the object files with the mcount
 locations.
 
 I was not able to reproduce this problem, as it seems that -m32 works fine
 for my cross compiler gcc 4.6.3, but I have to assume that -m32 was
 deprecated somewhere between 4.6 and 4.8. As it still seems to compile
 fine without -m32, I have no reason not to add this patch, as having
 -m32 seems to cause trouble for others.
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Merge tag 'trace-sh-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull superh tracing fix from Steven Rostedt:
 "It's been reported that function tracing does not work on the sh
  architecture because gcc 4.8 for superH does not support -m32, and the
  recordmcount.pl script adds "-m32" when re-compiling the object files
  with the mcount locations.

  I was not able to reproduce this problem, as it seems that -m32 works
  fine for my cross compiler gcc 4.6.3, but I have to assume that -m32
  was deprecated somewhere between 4.6 and 4.8.  As it still seems to
  compile fine without -m32, I have no reason not to add this patch, as
  having -m32 seems to cause trouble for others"

* tag 'trace-sh-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore
This commit is contained in:
Linus Torvalds 2015-01-22 06:26:07 +12:00
commit b942c653ae
1 changed files with 0 additions and 1 deletions
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scripts/recordmcount.pl
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@ -255,7 +255,6 @@ if ($arch eq "x86_64") {
# force flags for this arch
$ld .= " -m shlelf_linux";
$objcopy .= " -O elf32-sh-linux";
$cc .= " -m32";
} elsif ($arch eq "powerpc") {
$local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";