systemd: fix efi stubs

Before the patch:

| $ objdump -h deploy/images/intel-corei7-64/linuxx64.efi.stub
| objdump: deploy/images/intel-corei7-64/linuxx64.efi.stub (.reloc): section flag STYP_GROUP (0x4) ignored
| objdump: deploy/images/intel-corei7-64/linuxx64.efi.stub (.reloc): section flag STYP_GROUP (0x4) ignored
| objdump: deploy/images/intel-corei7-64/linuxx64.efi.stub: file format not recognized

After the patch:

| $objdump -h deploy/images/intel-corei7-64/linuxx64.efi.stub
|
| deploy/images/intel-corei7-64/linuxx64.efi.stub:     file format pei-x86-64
|
| Sections:
| Idx Name          Size      VMA               LMA               File off  Algn
|   0 .text         0000f99f  000000014df91000  000000014df91000  00000400  2**4
|                   CONTENTS, ALLOC, LOAD, READONLY, CODE
|   1 .rodata       00002c40  000000014dfa1000  000000014dfa1000  0000fe00  2**2
|                   CONTENTS, ALLOC, LOAD, READONLY, DATA
|   2 .data         000002d8  000000014dfa4000  000000014dfa4000  00012c00  2**4
|                   CONTENTS, ALLOC, LOAD, DATA
|   3 .sdmagic      00000032  000000014dfa5000  000000014dfa5000  00013000  2**2
|                   CONTENTS, ALLOC, LOAD, READONLY, DATA
|   4 .reloc        00000080  000000014dfa6000  000000014dfa6000  00013200  2**2
|                   CONTENTS, ALLOC, LOAD, READONLY, DATA

Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 71 insertions, 0 deletions

diff --git a/meta/recipes-core/systemd/systemd.inc b/meta/recipes-core/systemd/systemd.inc
index b00a49884b..e5686fbe44 100644
--- a/meta/recipes-core/systemd/systemd.inc
+++ b/meta/recipes-core/systemd/systemd.inc
@@ -17,6 +17,7 @@ LIC_FILES_CHKSUM = "file://LICENSE.GPL2;md5=751419260aa954499f7abaabaa882bbe \
 SRCREV = "994c7978608a0bd9b317f4f74ff266dd50a3e74e"
 SRCBRANCH = "v254-stable"
 SRC_URI = "git://github.com/systemd/systemd-stable.git;protocol=https;branch=${SRCBRANCH} \
+           file://0001-elf2efi-Fix-header-size-calculation.patch \
            "
 
 S = "${WORKDIR}/git"
diff --git a/meta/recipes-core/systemd/systemd/0001-elf2efi-Fix-header-size-calculation.patch b/meta/recipes-core/systemd/systemd/0001-elf2efi-Fix-header-size-calculation.patch
new file mode 100644
index 0000000000..0e8924d27d
--- /dev/null
+++ b/meta/recipes-core/systemd/systemd/0001-elf2efi-Fix-header-size-calculation.patch
@@ -0,0 +1,70 @@
+From d082d6502fa86e08dda858933838dde0406b824f Mon Sep 17 00:00:00 2001
+From: Jan Janssen <medhefgo@web.de>
+Date: Sun, 30 Jul 2023 20:59:04 +0200
+Subject: [PATCH] elf2efi: Fix header size calculation
+
+The PE header size calculation failed to take the PE magic and coff
+header size into account, which will lead to header truncation if we are
+writing only 5 sections.
+
+Upstream-Status: Backport [https://github.com/systemd/systemd/commit/ee91e06a5841c30bc7306260528ef407e0ebbab3]
+
+Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
+---
+ tools/elf2efi.py | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/tools/elf2efi.py b/tools/elf2efi.py
+index e233c8e3ab..2e478940f5 100755
+--- a/tools/elf2efi.py
++++ b/tools/elf2efi.py
+@@ -210,6 +210,7 @@ FILE_ALIGNMENT = 512
+ 
+ # Nobody cares about DOS headers, so put the PE header right after.
+ PE_OFFSET = 64
++PE_MAGIC = b"PE\0\0"
+ 
+ 
+ def align_to(x: int, align: int) -> int:
+@@ -304,7 +305,10 @@ def copy_sections(elf: ELFFile, opt: PeOptionalHeader) -> typing.List[PeSection]
+ 
+ 
+ def apply_elf_relative_relocation(
+-    reloc: ElfRelocation, image_base: int, sections: typing.List[PeSection], addend_size: int
++    reloc: ElfRelocation,
++    image_base: int,
++    sections: typing.List[PeSection],
++    addend_size: int,
+ ):
+     # fmt: off
+     [target] = [
+@@ -439,7 +443,7 @@ def write_pe(
+     file.seek(0x3C, io.SEEK_SET)
+     file.write(PE_OFFSET.to_bytes(2, byteorder="little"))
+     file.seek(PE_OFFSET, io.SEEK_SET)
+-    file.write(b"PE\0\0")
++    file.write(PE_MAGIC)
+     file.write(coff)
+     file.write(opt)
+ 
+@@ -453,6 +457,8 @@ def write_pe(
+         file.write(pe_s)
+         offset = align_to(offset + len(pe_s.data), FILE_ALIGNMENT)
+ 
++    assert file.tell() <= opt.SizeOfHeaders
++
+     for pe_s in sections:
+         file.seek(pe_s.PointerToRawData, io.SEEK_SET)
+         file.write(pe_s.data)
+@@ -515,6 +521,8 @@ def elf2efi(args: argparse.Namespace):
+ 
+     opt.SizeOfHeaders = align_to(
+         PE_OFFSET
++        + len(PE_MAGIC)
++        + sizeof(PeCoffHeader)
+         + coff.SizeOfOptionalHeader
+         + sizeof(PeSection) * max(coff.NumberOfSections, args.minimum_sections),
+         FILE_ALIGNMENT,
+-- 
+2.34.1
+