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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-08-18 19:31:25 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-08-22 13:36:59 +1000 |
| commit | 8a8f7866663588b162031a5348c24e42161461cd (patch) | |
| tree | ddfbcd6e478cb0a38aab8eeeab14667d7c1bc5f0 /arch/powerpc/include/asm | |
| parent | c814bf958926ff45a9c1e899bd001006ab6cfbae (diff) | |
| download | linux-8a8f7866663588b162031a5348c24e42161461cd.tar.bz2 | |
powerpc/vdso: Don't map VDSO at a fixed address on PPC32
PPC64 removed default mapping address from VDSO in
commit 30d0b3682887 ("powerpc: Move 64bit VDSO to improve context
switch performance").
Do like PPC64 and let get_unmapped_area() place the VDSO mapping
at the address it wants, don't force a default address.
This allows randomisation of VDSO address.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/cba76f5a5b01fcc49415e632d92c11c1c5998cab.1660843877.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/vdso.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/vdso.h b/arch/powerpc/include/asm/vdso.h index 8542e9bbeead..7650b6ce14c8 100644 --- a/arch/powerpc/include/asm/vdso.h +++ b/arch/powerpc/include/asm/vdso.h @@ -2,9 +2,6 @@ #ifndef _ASM_POWERPC_VDSO_H #define _ASM_POWERPC_VDSO_H -/* Default map addresses for 32bit vDSO */ -#define VDSO32_MBASE 0x100000 - #define VDSO_VERSION_STRING LINUX_2.6.15 #ifndef __ASSEMBLY__ |