diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-07-25 10:56:19 +0900 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-07-27 21:36:03 +1000 |
| commit | 9257971377e2fe6e82f41f688651a82a2f160a88 (patch) | |
| tree | 89b0fa0cfd9267c318d09d7a0ffeae1eb477558f /arch/powerpc/purgatory | |
| parent | 118b1366930c8c833b8b36abef657f40d4e26610 (diff) | |
powerpc/purgatory: Omit use of bin2c
The .incbin assembler directive is much faster than bin2c + $(CC).
Do similar refactoring as in commit 4c0f032d4963 ("s390/purgatory:
Omit use of bin2c").
Please note the .quad directive matches to size_t in C (both 8 byte)
because the purgatory is compiled only for the 64-bit kernel.
(KEXEC_FILE depends on PPC64).
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220725015619.618070-1-masahiroy@kernel.org
Diffstat (limited to 'arch/powerpc/purgatory')
| -rw-r--r-- | arch/powerpc/purgatory/.gitignore | 1 | ||||
| -rw-r--r-- | arch/powerpc/purgatory/Makefile | 8 | ||||
| -rw-r--r-- | arch/powerpc/purgatory/kexec-purgatory.S | 14 |
3 files changed, 16 insertions, 7 deletions
diff --git a/arch/powerpc/purgatory/.gitignore b/arch/powerpc/purgatory/.gitignore index b8dc6ff34254..5e40575c1f2b 100644 --- a/arch/powerpc/purgatory/.gitignore +++ b/arch/powerpc/purgatory/.gitignore @@ -1,3 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -kexec-purgatory.c purgatory.ro diff --git a/arch/powerpc/purgatory/Makefile b/arch/powerpc/purgatory/Makefile index 348f59581052..a81d155b89ae 100644 --- a/arch/powerpc/purgatory/Makefile +++ b/arch/powerpc/purgatory/Makefile @@ -2,17 +2,13 @@ KASAN_SANITIZE := n -targets += trampoline_$(BITS).o purgatory.ro kexec-purgatory.c +targets += trampoline_$(BITS).o purgatory.ro LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined $(obj)/purgatory.ro: $(obj)/trampoline_$(BITS).o FORCE $(call if_changed,ld) -quiet_cmd_bin2c = BIN2C $@ - cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@ - -$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE - $(call if_changed,bin2c) +$(obj)/kexec-purgatory.o: $(obj)/purgatory.ro obj-y += kexec-purgatory.o diff --git a/arch/powerpc/purgatory/kexec-purgatory.S b/arch/powerpc/purgatory/kexec-purgatory.S new file mode 100644 index 000000000000..f494fd5a0526 --- /dev/null +++ b/arch/powerpc/purgatory/kexec-purgatory.S @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + + .section .rodata, "a" + + .align 8 +kexec_purgatory: + .globl kexec_purgatory + .incbin "arch/powerpc/purgatory/purgatory.ro" +.Lkexec_purgatory_end: + + .align 8 +kexec_purgatory_size: + .globl kexec_purgatory_size + .quad .Lkexec_purgatory_end - kexec_purgatory |