The quilt patch titled
Subject: checkstack: add loongarch support for scripts/checkstack.pl
has been removed from the -mm tree. Its filename was
checkstack-add-loongarch-support-for-scripts-checkstackpl.patch
This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Youling Tang <tangyouling@xxxxxxxxxx>
Subject: checkstack: add loongarch support for scripts/checkstack.pl
Date: Sat, 16 Dec 2023 14:40:54 +0800
scripts/checkstack.pl lacks support for the loongarch architecture. Add
support to detect "addi.{w,d} $sp, $sp, -FRAME_SIZE" stack frame
generation instruction.
Link: https://lkml.kernel.org/r/MW4PR84MB314514273F0B7DBCC5E35A978192A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Youling Tang <tangyouling@xxxxxxxxxx>
Acked-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkstack.pl | 4 ++++
1 file changed, 4 insertions(+)
--- a/scripts/checkstack.pl~checkstack-add-loongarch-support-for-scripts-checkstackpl
+++ a/scripts/checkstack.pl
@@ -16,6 +16,7 @@
# sparc port by Martin Habets <errandir_news@xxxxxxxxxxxxxxxxx>
# ppc64le port by Breno Leitao <leitao@xxxxxxxxxx>
# riscv port by Wadim Mueller <wafgo01@xxxxxxxxx>
+# loongarch port by Youling Tang <tangyouling@xxxxxxxxxx>
#
# Usage:
# objdump -d vmlinux | scripts/checkstack.pl [arch]
@@ -104,6 +105,9 @@ my (@stack, $re, $dre, $sub, $x, $xs, $f
} elsif ($arch =~ /^riscv(64)?$/) {
#ffffffff8036e868: c2010113 addi sp,sp,-992
$re = qr/.*addi.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ } elsif ($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
_
Patches currently in -mm which might be from tangyouling@xxxxxxxxxx are
