The ftrace.c file may reference the mcount function and this may interfere with the recordmcount.pl processing. To avoid this, the code does not process the kernel/trace/ftrace.o. But currently the check is against a relative path. This patch modifies the check to succeed if the path is an absolute path.
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| @@ -123,7 +123,7 @@ my ($arch, $bits, $objdump, $objcopy, $cc, · 122 unmodified lines | ||
| 123 | 123 | $ld, $nm, $rm, $mv, $is_module, $inputfile) = @ARGV; |
| 124 | 124 | |
| 125 | 125 | # This file refers to mcount and shouldn't be ftraced, so lets' ignore it |
| 126 | −if ($inputfile eq "kernel/trace/ftrace.o") { | |
| 126 | +if ($inputfile =~ m,kernel/trace/ftrace\.o$,) { | |
| 127 | 127 | exit(0); |
| 128 | 128 | } |
| 129 | 129 | |