package/systemd: fix compiling with headers < 4.14

In commit 360a7cd738 ("package/systemd:
bump linux-headers dependency to 4.14"), the headers requirements were
bumped to 4.14 because of new build failures due to
LOOP_SET_BLOCK_SIZE.

Even though systemd does not recommend using it with headers <
4.15 (see [1]), it is still possible to build it and use some of its
features (after fixing the build failure).

Note that this was build-tested with 4.4 headers only, and not all the
way back to 3.15 (which is the version requirement that was used
before 360a7cd738).

[1]: https://github.com/systemd/systemd/blob/main/README

Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Raphaël Mélotte
2024-06-17 10:03:09 +02:00
committed by Thomas Petazzoni
parent 60c8807c69
commit 63b4cbacb1
3 changed files with 45 additions and 6 deletions

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@@ -0,0 +1,38 @@
From e358793a796f8c742af4ea3f4fe398731ca46649 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rapha=C3=ABl=20M=C3=A9lotte?= <raphael.melotte@mind.be>
Date: Fri, 14 Jun 2024 14:37:29 +0200
Subject: [PATCH] src/basic/missing_loop.h: fix missing LOOP_SET_BLOCK_SIZE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Builds with kernels headers < 4.14 fail with:
../src/shared/loop-util.c: In function loop_configure_fallback:
../src/shared/loop-util.c:237:31: error: LOOP_SET_BLOCK_SIZE undeclared (first use in this function); did you mean LOOP_SET_DIRECT_IO?
if (ioctl(fd, LOOP_SET_BLOCK_SIZE, (unsigned long) c->block_size) < 0)
^~~~~~~~~~~~~~~~~~~
LOOP_SET_DIRECT_IO
Fixes: https://github.com/systemd/systemd/issues/33341
Upstream: https://github.com/systemd/systemd/commit/56ab1c54497d9fac74380ff9e11aaf931a917d2b
Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
---
src/basic/missing_loop.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/basic/missing_loop.h b/src/basic/missing_loop.h
index 7141544b64..b1505f678b 100644
--- a/src/basic/missing_loop.h
+++ b/src/basic/missing_loop.h
@@ -22,3 +22,7 @@ struct loop_config {
#ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
#define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN | LO_FLAGS_DIRECT_IO)
#endif
+
+#ifndef LOOP_SET_BLOCK_SIZE
+# define LOOP_SET_BLOCK_SIZE 0x4C09
+#endif
--
2.25.1

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@@ -22,7 +22,7 @@ menuconfig BR2_PACKAGE_SYSTEMD
depends on !BR2_STATIC_LIBS # kmod
depends on BR2_TOOLCHAIN_USES_GLIBC
depends on BR2_TOOLCHAIN_HAS_SSP
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 # LOOP_SET_BLOCK_SIZE
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
depends on BR2_HOST_GCC_AT_LEAST_5 # host-systemd
select BR2_PACKAGE_HAS_UDEV
@@ -239,6 +239,7 @@ config BR2_PACKAGE_SYSTEMD_HOMED
depends on BR2_USE_MMU # cryptsetup -> lvm2
depends on !BR2_STATIC_LIBS # cryptsetup -> lvm2
depends on BR2_TOOLCHAIN_HAS_SYNC_4 # cryptsetup -> json-c
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # fscrypt_key
select BR2_PACKAGE_CRYPTSETUP
select BR2_PACKAGE_OPENSSL
select BR2_PACKAGE_OPENSSL_FORCE_LIBOPENSSL
@@ -249,11 +250,11 @@ config BR2_PACKAGE_SYSTEMD_HOMED
https://www.freedesktop.org/software/systemd/man/systemd-homed.service.html
comment "homed support needs a toolchain w/ threads, dynamic library"
comment "homed support needs a toolchain w/ threads, dynamic library, kernel headers >= 4.12"
depends on BR2_USE_MMU
depends on BR2_TOOLCHAIN_HAS_SYNC_4
depends on !BR2_TOOLCHAIN_HAS_THREADS || \
BR2_STATIC_LIBS
BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
config BR2_PACKAGE_SYSTEMD_HOSTNAMED
bool "enable hostname daemon"

View File

@@ -125,19 +125,19 @@ config BR2_INIT_SYSTEMD
depends on BR2_TOOLCHAIN_USES_GLIBC
depends on BR2_TOOLCHAIN_HAS_SSP
depends on BR2_TOOLCHAIN_HAS_THREADS
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14
depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
depends on BR2_HOST_GCC_AT_LEAST_5
select BR2_ROOTFS_MERGED_USR
select BR2_PACKAGE_SYSTEMD
select BR2_PACKAGE_SKELETON_INIT_SYSTEMD if BR2_ROOTFS_SKELETON_DEFAULT
comment "systemd needs a glibc toolchain w/ SSP, headers >= 4.14, host and target gcc >= 5"
comment "systemd needs a glibc toolchain w/ SSP, headers >= 3.15, host and target gcc >= 5"
depends on BR2_PACKAGE_SYSTEMD_ARCH_SUPPORTS
depends on BR2_USE_MMU
depends on !BR2_TOOLCHAIN_USES_GLIBC || \
!BR2_TOOLCHAIN_HAS_SSP || \
!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 || \
!BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15 || \
!BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
!BR2_HOST_GCC_AT_LEAST_5