new file mode 100644
@@ -0,0 +1,40 @@
+From 1b205aa9b15f04c510f76f3574726f6159f08291 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/pull/33342
+
+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 b88501d78b..f83a14c914 100644
+--- a/src/basic/missing_loop.h
++++ b/src/basic/missing_loop.h
+@@ -29,3 +29,7 @@ assert_cc(LOOP_SET_DIRECT_IO == 0x4C08);
+ #ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
+ # define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN)
+ #endif
++
++#ifndef LOOP_SET_BLOCK_SIZE
++# define LOOP_SET_BLOCK_SIZE 0x4C09
++#endif
+--
+2.45.1
+
@@ -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"
@@ -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
In commit 360a7cd738a85067ba60b029ca88eb7c874bfe4f ("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 360a7cd738a85067ba60b029ca88eb7c874bfe4f). [1]: https://github.com/systemd/systemd/blob/main/README Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be> --- ...g_loop.h-fix-missing-LOOP_SET_BLOCK_.patch | 40 +++++++++++++++++++ package/systemd/Config.in | 7 ++-- system/Config.in | 6 +-- 3 files changed, 47 insertions(+), 6 deletions(-) create mode 100644 package/systemd/0001-src-basic-missing_loop.h-fix-missing-LOOP_SET_BLOCK_.patch