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| author | Qian Cai <cai@lca.pw> | 2018-12-14 23:17:20 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-15 00:05:45 +0100 |
| commit | f1733a1d3cd32a9492f4cf866be37bb46e10163d (patch) | |
| tree | 8e499ba0aa68e32263632242c19cb0113f609bb7 | |
| parent | userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered (diff) | |
| download | linux-f1733a1d3cd32a9492f4cf866be37bb46e10163d.tar.xz linux-f1733a1d3cd32a9492f4cf866be37bb46e10163d.zip | |
checkstack.pl: fix for aarch64
There is actually a space after "sp," like this,
ffff2000080813c8: a9bb7bfd stp x29, x30, [sp, #-80]!
Right now, checkstack.pl isn't able to print anything on aarch64,
because it won't be able to match the stating objdump line of a function
due to this missing space. Hence, it displays every stack as zero-size.
After this patch, checkpatch.pl is able to match the start of a
function's objdump, and is then able to calculate each function's stack
correctly.
Link: http://lkml.kernel.org/r/20181207195843.38528-1-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rwxr-xr-x | scripts/checkstack.pl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl index 8081b6cf67d2..34414c6efad6 100755 --- a/scripts/checkstack.pl +++ b/scripts/checkstack.pl @@ -47,8 +47,8 @@ my (@stack, $re, $dre, $x, $xs, $funcre); $xs = "[0-9a-f ]"; # hex character or space $funcre = qr/^$x* <(.*)>:$/; if ($arch eq 'aarch64') { - #ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp,#-80]! - $re = qr/^.*stp.*sp,\#-([0-9]{1,8})\]\!/o; + #ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp, #-80]! + $re = qr/^.*stp.*sp, \#-([0-9]{1,8})\]\!/o; } elsif ($arch eq 'arm') { #c0008ffc: e24dd064 sub sp, sp, #100 ; 0x64 $re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o; |