linux-stable/arch/ia64
Peter Zijlstra ab8f581408 arch: Introduce CONFIG_FUNCTION_ALIGNMENT
commit d49a062621 upstream.

Generic function-alignment infrastructure.

Architectures can select FUNCTION_ALIGNMENT_xxB symbols; the
FUNCTION_ALIGNMENT symbol is then set to the largest such selected
size, 0 otherwise.

>From this the -falign-functions compiler argument and __ALIGN macro
are set.

This incorporates the DEBUG_FORCE_FUNCTION_ALIGN_64B knob and future
alignment requirements for x86_64 (later in this series) into a single
place.

NOTE: also removes the 0x90 filler byte from the generic __ALIGN
      primitive, that value makes no sense outside of x86.

NOTE: .balign 0 reverts to a no-op.

Requested-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I053b3c408d56988381feb8c8bdb5e27ea221755f
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111143.719248727@infradead.org
[cascardo: adjust context at arch/x86/Kconfig]
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-10 16:18:49 +02:00
..
configs ia64: drop marked broken DISCONTIGMEM and VIRTUAL_MEM_MAP 2021-04-30 11:20:35 -07:00
hp/common ia64/sba_iommu: return error code from sba_map_sg_attrs() 2021-08-09 17:13:05 +02:00
include ia64/cpu: Switch to arch_cpu_finalize_init() 2023-08-08 19:58:30 +02:00
kernel ia64/cpu: Switch to arch_cpu_finalize_init() 2023-08-08 19:58:30 +02:00
lib Merge branch 'work.csum_and_copy' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-12 16:24:13 -07:00
mm memblock: allow to specify flags with memblock_add_node() 2023-12-20 15:17:33 +01:00
pci PCI/sysfs: Find shadow ROM before static attribute initialization 2022-02-01 17:27:05 +01:00
scripts kbuild: remove PYTHON variable 2021-02-01 10:37:19 +09:00
uv
Kbuild ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild 2021-09-03 08:17:20 +09:00
Kconfig arch: Introduce CONFIG_FUNCTION_ALIGNMENT 2024-04-10 16:18:49 +02:00
Kconfig.debug ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK 2021-11-18 19:16:13 +01:00
Makefile arch: Introduce CONFIG_FUNCTION_ALIGNMENT 2024-04-10 16:18:49 +02:00
install.sh