kexec-tools: Replace a submitted patch by the backported one

This replaces "kexec-tools: purgatory: fix build on `binutils-2.42`"
(Submitted upstream) by "Fix building on x86_64 with binutils 2.41"
(which was actually merged).

Upstream maintainers found the second patch more complete [0].

[0]: https://lore.kernel.org/all/ZbopWV9qrxMME2hU@MiWiFi-R3L-srv/T/

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 96 insertions, 60 deletions

diff --git a/meta/recipes-kernel/kexec/kexec-tools/0001-kexec-tools-purgatory-fix-build-on-binutils-2.42.patch b/meta/recipes-kernel/kexec/kexec-tools/0001-kexec-tools-purgatory-fix-build-on-binutils-2.42.patch
deleted file mode 100644
index 6104a29d71..0000000000
--- a/meta/recipes-kernel/kexec/kexec-tools/0001-kexec-tools-purgatory-fix-build-on-binutils-2.42.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-From 2cdbb12f4b101c7ecb3a4791819d9269d4f07c19 Mon Sep 17 00:00:00 2001
-From: Sergei Trofimovich <slyich@gmail.com>
-Date: Wed, 31 Jan 2024 10:05:08 +0000
-Subject: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`
-
-`binutils-2.42` introduced stricter checks on what `.arch` can be used
-in 64-bit mode and started failing the build as:
-
-    $ as-2.42 --64 -o entry32-16-debug.o entry32-16-debug.s
-    purgatory/arch/i386/entry32-16-debug.S: Assembler messages:
-    purgatory/arch/i386/entry32-16-debug.S:28: Error: 64bit mode not supported on `i386'.
-
-The change moves `.code32` before `.arch 386` as suggested in
-https://sourceware.org/PR31319
-
-Upstream-Status: Submitted [https://lore.kernel.org/all/ZbopWV9qrxMME2hU@MiWiFi-R3L-srv/T/]
-Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
-Reviewed-by: Baoquan He <bhe@redhat.com>
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- purgatory/arch/i386/entry32-16-debug.S | 2 +-
- purgatory/arch/i386/entry32-16.S       | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/purgatory/arch/i386/entry32-16-debug.S b/purgatory/arch/i386/entry32-16-debug.S
-index 5167944..297d6f5 100644
---- a/purgatory/arch/i386/entry32-16-debug.S
-+++ b/purgatory/arch/i386/entry32-16-debug.S
-@@ -25,10 +25,10 @@
- 	.globl entry16_debug_pre32
- 	.globl entry16_debug_first32
- 	.globl entry16_debug_old_first32
-+	.code32
- 	.arch i386
- 	.balign 16
- entry16_debug:
--	.code32
- 	/* Compute where I am running at (assumes esp valid) */
- 	call	1f
- 1:	popl	%ebx
-diff --git a/purgatory/arch/i386/entry32-16.S b/purgatory/arch/i386/entry32-16.S
-index c051aab..7a84565 100644
---- a/purgatory/arch/i386/entry32-16.S
-+++ b/purgatory/arch/i386/entry32-16.S
-@@ -20,10 +20,10 @@
- #undef i386	
- 	.text
- 	.globl entry16, entry16_regs
-+	.code32
- 	.arch i386
- 	.balign 16
- entry16:
--	.code32
- 	/* Compute where I am running at (assumes esp valid) */
- 	call	1f
- 1:	popl	%ebx
--- 
-2.43.0
-
diff --git a/meta/recipes-kernel/kexec/kexec-tools/Fix-building-on-x86_64-with-binutils-2.41.patch b/meta/recipes-kernel/kexec/kexec-tools/Fix-building-on-x86_64-with-binutils-2.41.patch
new file mode 100644
index 0000000000..4894f044fc
--- /dev/null
+++ b/meta/recipes-kernel/kexec/kexec-tools/Fix-building-on-x86_64-with-binutils-2.41.patch
@@ -0,0 +1,95 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Michel Lind <salimma@fedoraproject.org>
+Date: Tue, 30 Jan 2024 04:14:31 -0600
+Subject: [PATCH] Fix building on x86_64 with binutils 2.41
+
+Newer versions of the GNU assembler (observed with binutils 2.41) will
+complain about the ".arch i386" in files assembled with "as --64",
+with the message "Error: 64bit mode not supported on 'i386'".
+
+Fix by moving ".arch i386" below the relevant ".code32" directive, so
+that the assembler is no longer expecting 64-bit instructions to be used
+by the time that the ".arch i386" directive is encountered.
+
+Based on similar iPXE fix:
+https://github.com/ipxe/ipxe/commit/6ca597eee
+
+Signed-off-by: Michel Lind <michel@michel-slm.name>
+Signed-off-by: Simon Horman <horms@kernel.org>
+
+Upstream-Status: Backport [https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?h=main&id=328de8e00e298f00d7ba6b25dc3950147e9642e6]
+Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
+---
+ purgatory/arch/i386/entry32-16-debug.S | 2 +-
+ purgatory/arch/i386/entry32-16.S       | 2 +-
+ purgatory/arch/i386/entry32.S          | 2 +-
+ purgatory/arch/i386/setup-x86.S        | 2 +-
+ 4 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/purgatory/arch/i386/entry32-16-debug.S b/purgatory/arch/i386/entry32-16-debug.S
+index 5167944..12e1164 100644
+--- a/purgatory/arch/i386/entry32-16-debug.S
++++ b/purgatory/arch/i386/entry32-16-debug.S
+@@ -25,10 +25,10 @@
+ 	.globl entry16_debug_pre32
+ 	.globl entry16_debug_first32
+ 	.globl entry16_debug_old_first32
+-	.arch i386
+ 	.balign 16
+ entry16_debug:
+ 	.code32
++	.arch i386
+ 	/* Compute where I am running at (assumes esp valid) */
+ 	call	1f
+ 1:	popl	%ebx
+diff --git a/purgatory/arch/i386/entry32-16.S b/purgatory/arch/i386/entry32-16.S
+index c051aab..eace095 100644
+--- a/purgatory/arch/i386/entry32-16.S
++++ b/purgatory/arch/i386/entry32-16.S
+@@ -20,10 +20,10 @@
+ #undef i386	
+ 	.text
+ 	.globl entry16, entry16_regs
+-	.arch i386
+ 	.balign 16
+ entry16:
+ 	.code32
++	.arch i386
+ 	/* Compute where I am running at (assumes esp valid) */
+ 	call	1f
+ 1:	popl	%ebx
+diff --git a/purgatory/arch/i386/entry32.S b/purgatory/arch/i386/entry32.S
+index f7a494f..8ce9e31 100644
+--- a/purgatory/arch/i386/entry32.S
++++ b/purgatory/arch/i386/entry32.S
+@@ -20,10 +20,10 @@
+ #undef i386
+ 
+ 	.text
+-	.arch	i386
+ 	.globl entry32, entry32_regs
+ entry32:
+ 	.code32
++	.arch	i386
+ 
+ 	/* Setup a gdt that should that is generally usefully */
+ 	lgdt	%cs:gdt
+diff --git a/purgatory/arch/i386/setup-x86.S b/purgatory/arch/i386/setup-x86.S
+index 201bb2c..a212eed 100644
+--- a/purgatory/arch/i386/setup-x86.S
++++ b/purgatory/arch/i386/setup-x86.S
+@@ -21,10 +21,10 @@
+ #undef i386
+ 
+ 	.text
+-	.arch	i386
+ 	.globl purgatory_start
+ purgatory_start:
+ 	.code32
++	.arch	i386
+ 
+ 	/* Load a gdt so I know what the segment registers are */
+ 	lgdt	%cs:gdt
+-- 
+2.39.2
+
diff --git a/meta/recipes-kernel/kexec/kexec-tools_2.0.28.bb b/meta/recipes-kernel/kexec/kexec-tools_2.0.28.bb
index 4471cdf21e..dec821ea88 100644
--- a/meta/recipes-kernel/kexec/kexec-tools_2.0.28.bb
+++ b/meta/recipes-kernel/kexec/kexec-tools_2.0.28.bb
@@ -17,7 +17,7 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/kernel/kexec/kexec-tools-${PV}.tar.gz
            file://0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch \
            file://0005-Disable-PIE-during-link.patch \
            file://0001-arm64-kexec-disabled-check-if-kaslr-seed-dtb-propert.patch \
-           file://0001-kexec-tools-purgatory-fix-build-on-binutils-2.42.patch \
+           file://Fix-building-on-x86_64-with-binutils-2.41.patch \
            "
 
 SRC_URI[sha256sum] = "f33d2660b3e38d25a127e87097978e0f7a9a73ab5151a29eb80974d169ff6a29"