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-rwxr-xr-xscripts/checkstack.pl45
1 files changed, 30 insertions, 15 deletions
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index f27d552aec..14ce31f732 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -8,7 +8,6 @@
# Original idea maybe from Keith Owens
# s390 port and big speedup by Arnd Bergmann <arnd@bergmann-dalldorf.de>
# Mips port by Juan Quintela <quintela@mandrakesoft.com>
-# IA64 port via Andreas Dilger
# Arm port by Holger Schurig
# Random bits by Matt Mackall <mpm@selenic.com>
# M68k port by Geert Uytterhoeven and Andreas Schwab
@@ -16,9 +15,10 @@
# sparc port by Martin Habets <errandir_news@mph.eclipse.co.uk>
# ppc64le port by Breno Leitao <leitao@debian.org>
# riscv port by Wadim Mueller <wafgo01@gmail.com>
+# loongarch port by Youling Tang <tangyouling@kylinos.cn>
#
# Usage:
-# objdump -d vmlinux | scripts/checkstack.pl [arch]
+# objdump -d vmlinux | scripts/checkstack.pl [arch] [min_stack]
#
# TODO : Port to all architectures (one regex per arch)
@@ -47,7 +47,7 @@ my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
$min_stack = shift;
if ($min_stack eq "" || $min_stack !~ /^\d+$/) {
- $min_stack = 100;
+ $min_stack = 512;
}
$x = "[0-9a-f]"; # hex character
@@ -56,7 +56,7 @@ my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
if ($arch =~ '^(aarch|arm)64$') {
#ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp, #-80]!
#a110: d11643ff sub sp, sp, #0x590
- $re = qr/^.*stp.*sp, \#-([0-9]{1,8})\]\!/o;
+ $re = qr/^.*stp.*sp, ?\#-([0-9]{1,8})\]\!/o;
$dre = qr/^.*sub.*sp, sp, #(0x$x{1,8})/o;
} elsif ($arch eq 'arm') {
#c0008ffc: e24dd064 sub sp, sp, #100 ; 0x64
@@ -68,25 +68,22 @@ my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
# 2f60: 48 81 ec e8 05 00 00 sub $0x5e8,%rsp
$re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%(e|r)sp$/o;
$dre = qr/^.*[as][du][db] (%.*),\%(e|r)sp$/o;
- } elsif ($arch eq 'ia64') {
- #e0000000044011fc: 01 0f fc 8c adds r12=-384,r12
- $re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
} elsif ($arch eq 'm68k') {
# 2b6c: 4e56 fb70 linkw %fp,#-1168
# 1df770: defc ffe4 addaw #-28,%sp
$re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
} elsif ($arch eq 'mips64') {
#8800402c: 67bdfff0 daddiu sp,sp,-16
- $re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ $re = qr/.*daddiu.*sp,sp,-([0-9]{1,8})/o;
} elsif ($arch eq 'mips') {
#88003254: 27bdffe0 addiu sp,sp,-32
- $re = qr/.*addiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ $re = qr/.*addiu.*sp,sp,-([0-9]{1,8})/o;
} elsif ($arch eq 'nios2') {
#25a8: defffb04 addi sp,sp,-20
- $re = qr/.*addi.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ $re = qr/.*addi.*sp,sp,-([0-9]{1,8})/o;
} elsif ($arch eq 'openrisc') {
# c000043c: 9c 21 fe f0 l.addi r1,r1,-272
- $re = qr/.*l\.addi.*r1,r1,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ $re = qr/.*l\.addi.*r1,r1,-([0-9]{1,8})/o;
} elsif ($arch eq 'parisc' || $arch eq 'parisc64') {
$re = qr/.*ldo ($x{1,8})\(sp\),sp/o;
} elsif ($arch eq 'powerpc' || $arch =~ /^ppc(64)?(le)?$/ ) {
@@ -100,10 +97,13 @@ my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
$re = qr/.*(?:lay|ag?hi).*\%r15,-([0-9]+)(?:\(\%r15\))?$/o;
} elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
# f0019d10: 9d e3 bf 90 save %sp, -112, %sp
- $re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
+ $re = qr/.*save.*%sp, -([0-9]{1,8}), %sp/o;
} elsif ($arch =~ /^riscv(64)?$/) {
#ffffffff8036e868: c2010113 addi sp,sp,-992
- $re = qr/.*addi.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ $re = qr/.*addi.*sp,sp,-([0-9]{1,8})/o;
+ } elsif ($arch =~ /^loongarch(32|64)?$/) {
+ #9000000000224708: 02ff4063 addi.d $sp, $sp, -48(0xfd0)
+ $re = qr/.*addi\..*sp, .*sp, -([0-9]{1,8}).*/o;
} else {
print("wrong or unknown architecture \"$arch\"\n");
exit
@@ -189,5 +189,20 @@ if ($total_size > $min_stack) {
push @stack, "$intro$total_size\n";
}
-# Sort output by size (last field)
-print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack;
+# Sort output by size (last field) and function name if size is the same
+sub sort_lines {
+ my ($a, $b) = @_;
+
+ my $num_a = $1 if $a =~ /:\t*(\d+)$/;
+ my $num_b = $1 if $b =~ /:\t*(\d+)$/;
+ my $func_a = $1 if $a =~ / (.*):/;
+ my $func_b = $1 if $b =~ / (.*):/;
+
+ if ($num_a != $num_b) {
+ return $num_b <=> $num_a;
+ } else {
+ return $func_a cmp $func_b;
+ }
+}
+
+print sort { sort_lines($a, $b) } @stack;