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powerpc/64: Do not link crtsaveres.o in boot

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crtsaveres.S is empty with 64-bit builds already, so just don't
build and link it to match the vmlinux build.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Use CONFIG_PPC64_BOOT_WRAPPER not CONFIG_PPC32 to fix BE build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-05-12 01:56:50 +10:00 committed by Michael Ellerman
parent baa25b571a
commit 7c868b66f8
2 changed files with 8 additions and 5 deletions
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5
arch/powerpc/boot/Makefile
View File

@ -95,13 +95,16 @@ libfdtheader := fdt.h libfdt.h libfdt_internal.h
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
$(addprefix $(obj)/,$(libfdtheader))
src-wlib-y := string.S crt0.S crtsavres.S stdio.c decompress.c main.c \
src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \
$(libfdt) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
elf_util.c $(zlib-y) devtree.c stdlib.c \
oflib.c ofconsole.c cuboot.c mpsc.c cpm-serial.c \
uartlite.c mpc52xx-psc.c opal.c
src-wlib-$(CONFIG_PPC64_BOOT_WRAPPER) += opal-calls.S
ifndef CONFIG_PPC64_BOOT_WRAPPER
src-wlib-y += crtsavres.S
endif
src-wlib-$(CONFIG_40x) += 4xx.c planetcore.c
src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo.c
src-wlib-$(CONFIG_8xx) += mpc8xx.c planetcore.c fsl-soc.c

8
arch/powerpc/boot/crtsavres.S
View File

@ -37,12 +37,13 @@
* the executable file might be covered by the GNU General Public License.
*/
#ifdef __powerpc64__
#error "On PPC64, FPR save/restore functions are provided by the linker."
#endif
.file "crtsavres.S"
.section ".text"
/* On PowerPC64 Linux, these functions are provided by the linker. */
#ifndef __powerpc64__
#define _GLOBAL(name) \
.type name,@function; \
.globl name; \
@ -230,4 +231,3 @@ _GLOBAL(_rest32gpr_31_x)
mtlr 0
mr 1,11
blr
#endif