+ checkstack-add-loongarch-support-for-scripts-checkstackpl.patch added to mm-nonmm-unstable branch

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The patch titled
     Subject: checkstack: add loongarch support for scripts/checkstack.pl
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     checkstack-add-loongarch-support-for-scripts-checkstackpl.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/checkstack-add-loongarch-support-for-scripts-checkstackpl.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
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

scripts-decodecode-add-support-for-loongarch.patch
checkstack-add-loongarch-support-for-scripts-checkstackpl.patch





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