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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-09-27 11:16:31 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-03 15:01:17 +0100 |
| commit | 591857b635c1f635cae556e1b1f9d81808242493 (patch) | |
| tree | de39edda42b4155e094f14e61af5f6d5f8f26935 /arch/powerpc/kernel | |
| parent | powerpc/vdso: Move vdso datapage up front (diff) | |
| download | linux-591857b635c1f635cae556e1b1f9d81808242493.tar.xz linux-591857b635c1f635cae556e1b1f9d81808242493.zip | |
powerpc/vdso: Simplify __get_datapage()
The VDSO datapage and the text pages are always located immediately
next to each other, so it can be hardcoded without an indirection
through __kernel_datapage_offset
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b08f5ef99d64cfc38f79b7ad5310d9b4d2479eeb.1601197618.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64/vdso64.lds.S | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S index 27a2d03c72d5..88a2976e9942 100644 --- a/arch/powerpc/kernel/vdso32/vdso32.lds.S +++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S @@ -4,6 +4,7 @@ * library */ #include <asm/vdso.h> +#include <asm/page.h> #ifdef __LITTLE_ENDIAN__ OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle") @@ -15,6 +16,7 @@ ENTRY(_start) SECTIONS { + PROVIDE(_vdso_datapage = . - PAGE_SIZE); . = VDSO32_LBASE + SIZEOF_HEADERS; .hash : { *(.hash) } :text diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S index 71be083b24ed..e43731386469 100644 --- a/arch/powerpc/kernel/vdso64/vdso64.lds.S +++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S @@ -4,6 +4,7 @@ * library */ #include <asm/vdso.h> +#include <asm/page.h> #ifdef __LITTLE_ENDIAN__ OUTPUT_FORMAT("elf64-powerpcle", "elf64-powerpcle", "elf64-powerpcle") @@ -15,6 +16,7 @@ ENTRY(_start) SECTIONS { + PROVIDE(_vdso_datapage = . - PAGE_SIZE); . = VDSO64_LBASE + SIZEOF_HEADERS; .hash : { *(.hash) } :text |