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linux/arch/powerpc/boot
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Nathan Chancellor 2b694fc96f powerpc/boot: Disable power10 features after BOOTAFLAGS assignment 
When building the boot wrapper assembly files with clang after
commit 648a1783fe ("powerpc/boot: Fix boot wrapper code generation
with CONFIG_POWER10_CPU"), the following warnings appear for each file
built:

  '-prefixed' is not a recognized feature for this target (ignoring feature)
  '-pcrel' is not a recognized feature for this target (ignoring feature)

While it is questionable whether or not LLVM should be emitting a
warning when passed negative versions of code generation flags when
building assembly files (since it does not emit a warning for the
altivec and vsx flags), it is easy enough to work around this by just
moving the disabled flags to BOOTCFLAGS after the assignment of
BOOTAFLAGS, so that they are not added when building assembly files.
Do so to silence the warnings.

Fixes: 648a1783fe ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU")
Link: https://github.com/ClangBuiltLinux/linux/issues/1839
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230427-remove-power10-args-from-boot-aflags-clang-v1-1-9107f7c943bc@kernel.org
2023-05-12 16:20:18 +10:00
..
dts powerpc: drop PowerQUICC II Family ADS platform support 2023-04-20 13:21:48 +10:00
.gitignore powerpc/boot: Add otheros-too-big.bld to .gitignore 2022-02-15 22:29:52 +11:00
4xx.c powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize 2020-01-06 16:25:27 +11:00
4xx.h powerpc/boot: Convert more files to use SPDX tags 2022-08-26 11:02:17 +10:00
44x.h powerpc/boot: Convert more files to use SPDX tags 2022-08-26 11:02:17 +10:00
addnote.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
bamboo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
cpm-serial.c
crt0.S powerpc/boot: Fix crt0.S current address branch form 2023-04-12 10:58:10 +10:00
crtsavres.S
cuboot-8xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-52xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-83xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-85xx-cpm2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-85xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-824x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-acadia.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-amigaone.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-bamboo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-ebony.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-hotfoot.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
cuboot-katmai.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-kilauea.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-pq2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-rainier.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
cuboot-sam440ep.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-sequoia.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
cuboot-taishan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-warp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot-yosemite.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cuboot.h
dcr.h
decompress.c powerpc/boot: Fix a typo in partial_decompress() comment 2021-05-17 15:27:16 +10:00
devtree.c powerpc/boot: Fixup device-tree on little endian 2021-06-21 21:16:32 +10:00
div64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ebony.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
elf_util.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
elf.h
ep88xc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ep8248e.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
epapr-wrapper.c
epapr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fixed-head.S
fixup-headers.sed
fsl-soc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fsl-soc.h
gamecube-head.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gamecube.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hack-coff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
holly.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
io.h
libfdt_env.h libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h 2019-11-26 13:35:25 -07:00
libfdt-wrapper.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 161 2019-05-30 11:26:38 -07:00
main.c powerpc/boot: Use address-of operator on section symbols 2020-06-30 14:38:00 +10:00
Makefile powerpc/boot: Disable power10 features after BOOTAFLAGS assignment 2023-05-12 16:20:18 +10:00
microwatt.c powerpc/boot: Add a boot wrapper for Microwatt 2021-06-21 21:16:32 +10:00
mktree.c
motload-head.S
mpc8xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mpc8xx.h
mpc52xx-psc.c
mvme5100.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mvme7100.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ns16550.c powerpc/boot: Fixup device-tree on little endian 2021-06-21 21:16:32 +10:00
of.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
of.h
ofconsole.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
oflib.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
opal-calls.S powerpc/64: asm use consistent global variable declaration and access 2022-09-28 19:22:12 +10:00
opal.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ops.h powerpc/boot: Convert more files to use SPDX tags 2022-08-26 11:02:17 +10:00
page.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
planetcore.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
planetcore.h
ppc_asm.h powerpc/64: switch asm helpers from GOT to TOC relative addressing 2022-09-28 19:22:12 +10:00
ppcboot-hotfoot.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ppcboot.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pq2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pq2.h
ps3-head.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
ps3-hvcall.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
ps3.c powerpc/ps3: Drop unused DBG macro 2020-11-19 14:50:14 +11:00
pseries-head.S
README
redboot-8xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
redboot-83xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
redboot.h
reg.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
rs6000.h
serial.c powerpc/boot: Convert more files to use SPDX tags 2022-08-26 11:02:17 +10:00
simple_alloc.c powerpc/boot: Convert more files to use SPDX tags 2022-08-26 11:02:17 +10:00
simpleboot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
stdbool.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
stdint.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
stdio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
stdio.h
stdlib.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
stdlib.h
string.h
string.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
swab.h
treeboot-akebono.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
treeboot-bamboo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
treeboot-currituck.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
treeboot-ebony.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
treeboot-iss4xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
types.h
ugecon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ugecon.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
util.S powerpc/boot: Make use of REL16 relocs in powerpc/boot/util.S 2020-12-04 01:00:44 +11:00
wii-head.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wii.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wrapper powerpc/boot: Fix incorrect version calculation issue in ld_version 2023-01-11 16:28:43 +11:00
xz_config.h powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h 2019-07-10 13:20:44 +10:00
zImage.coff.lds.S
zImage.lds.S powerpc/toc: Future proof kernel toc 2021-12-23 22:35:01 +11:00
zImage.ps3.lds.S powerpc/ps3: Re-align DTB in image 2021-06-10 21:44:57 +10:00

README 

To extract the kernel vmlinux, System.map, .config or initrd from the zImage binary:

objcopy -j .kernel:vmlinux -O binary zImage vmlinux.gz
objcopy -j .kernel:System.map -O binary zImage System.map.gz
objcopy -j .kernel:.config -O binary zImage config.gz
objcopy -j .kernel:initrd -O binary zImage.initrd initrd.gz


	Peter