diff options
| author | Konstantin Khlebnikov <koct9i@gmail.com> | 2014-08-08 17:23:35 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 18:57:27 -0400 |
| commit | fda9f9903be6c3b590472c175c514b0834bb3c83 (patch) | |
| tree | 02209b01041024c8f3ac21175292e25ff236187e /scripts | |
| parent | c965526a82a62a97363ea7f3caae0e4a8a809bb9 (diff) | |
scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86
This patch adds support for ARCH=x86 into checkstack.
Commit ffee0de411fd ("x86: Default to ARCH=x86 to avoid overriding
CONFIG_64BIT") had merged ARCH=i386 and ARCH=x86_64 into one ARCH=x86.
checkstack.pl searches patterns of machine instructions which are
usually used for allocating stack frames. checkstalk.pl needs either
i386 or x86_64, x86 isn't enough:
$ make checkstack
objdump -d vmlinux $(find . -name '*.ko') | \
perl linux/scripts/checkstack.pl x86
wrong or unknown architecture "x86"
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkstack.pl | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl index c05d586b1fee..899b4230320e 100755 --- a/scripts/checkstack.pl +++ b/scripts/checkstack.pl | |||
| @@ -52,14 +52,12 @@ my (@stack, $re, $dre, $x, $xs, $funcre); | |||
| 52 | #8000008a: 20 1d sub sp,4 | 52 | #8000008a: 20 1d sub sp,4 |
| 53 | #80000ca8: fa cd 05 b0 sub sp,sp,1456 | 53 | #80000ca8: fa cd 05 b0 sub sp,sp,1456 |
| 54 | $re = qr/^.*sub.*sp.*,([0-9]{1,8})/o; | 54 | $re = qr/^.*sub.*sp.*,([0-9]{1,8})/o; |
| 55 | } elsif ($arch =~ /^i[3456]86$/) { | 55 | } elsif ($arch =~ /^x86(_64)?$/ || $arch =~ /^i[3456]86$/) { |
| 56 | #c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp | 56 | #c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp |
| 57 | $re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%esp$/o; | 57 | # or |
| 58 | $dre = qr/^.*[as][du][db] (%.*),\%esp$/o; | 58 | # 2f60: 48 81 ec e8 05 00 00 sub $0x5e8,%rsp |
| 59 | } elsif ($arch eq 'x86_64') { | 59 | $re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%(e|r)sp$/o; |
| 60 | # 2f60: 48 81 ec e8 05 00 00 sub $0x5e8,%rsp | 60 | $dre = qr/^.*[as][du][db] (%.*),\%(e|r)sp$/o; |
| 61 | $re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%rsp$/o; | ||
| 62 | $dre = qr/^.*[as][du][db] (\%.*),\%rsp$/o; | ||
| 63 | } elsif ($arch eq 'ia64') { | 61 | } elsif ($arch eq 'ia64') { |
| 64 | #e0000000044011fc: 01 0f fc 8c adds r12=-384,r12 | 62 | #e0000000044011fc: 01 0f fc 8c adds r12=-384,r12 |
| 65 | $re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o; | 63 | $re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o; |