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[RFC,v3,01/12] powerpc/64: Don't provide time functions in compat VDSO32

Message ID f64d31871148a75db9b6aeec7fbad0e3ea1b0737.1578934751.git.christophe.leroy@c-s.fr (mailing list archive)
State Superseded
Delegated to: Paul Burton
Headers show
Series powerpc: switch VDSO to C implementation. | expand

Commit Message

Christophe Leroy Jan. 13, 2020, 5:08 p.m. UTC
In order to allow use of generic C VDSO, remove time functions
from the 32 bits VDSO on PPC64.

This (temporary) removal is needed because powerpc kernel C headers
are not prepared for building 32 bits code on PPC64.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/kernel/vdso32/Makefile     | 3 ++-
 arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile
index 06f54d947057..738d52105392 100644
--- a/arch/powerpc/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso32/Makefile
@@ -3,7 +3,8 @@ 
 # List of files in the vdso, has to be asm only for now
 
 obj-vdso32-$(CONFIG_PPC64) = getcpu.o
-obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o \
+obj-vdso32-$(CONFIG_PPC32) = gettimeofday.o
+obj-vdso32 = sigtramp.o datapage.o cacheflush.o note.o \
 		$(obj-vdso32-y)
 
 # Build rules
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index 00c025ba4a92..9400b182e163 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -144,7 +144,7 @@  VERSION
 		__kernel_datapage_offset;
 
 		__kernel_get_syscall_map;
-#ifndef CONFIG_PPC_BOOK3S_601
+#if defined(CONFIG_PPC32) && !defined(CONFIG_PPC_BOOK3S_601)
 		__kernel_gettimeofday;
 		__kernel_clock_gettime;
 		__kernel_clock_getres;