github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

microblaze: Pass -m{big,little}-endian through KBUILD_CPPFLAGS

Browse Source 
These parameters are also necessary for preprocessed files which do not
contain code. One example is arch/microblaze/kernel/vmlinux.lds.S which
inspects __MICROBLAZEEL__ for the definition of 'jiffies_64'.
As currently the endianness is not passed from the build system for this
file, the preprocessor will instead use the default endianness of the
toolchain. When a default big-endian toolchain is used to build a
little-endian kernel, that kernel will hang during delay calibration
as 'jiffies' never changes.

Make sure all preprocessor invocations know about the correct endianness
by passing it through KBUILD_CPPFLAGS. This will also be inherited by
CFLAGS and AFLAGS.

Fixes: 02b08045a0 ("microblaze: Add support for little-endian Microblaze")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20260914-kunit-microblaze-v2-2-7d5756e858f8@weissschuh.net
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Thomas Weißschuh 2026-09-14 01:50:09 +02:00 committed by Michal Simek
parent 54c35131e6
commit b9eababe8c
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/microblaze/Makefile
View File

@ -34,12 +34,10 @@ CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
ifdef CONFIG_CPU_BIG_ENDIAN
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
KBUILD_CPPFLAGS += -mbig-endian
KBUILD_LDFLAGS += -EB
else
KBUILD_CFLAGS += -mlittle-endian
KBUILD_AFLAGS += -mlittle-endian
KBUILD_CPPFLAGS += -mlittle-endian
KBUILD_LDFLAGS += -EL
endif