summaryrefslogtreecommitdiff
path: root/arch/riscv/kernel/vdso
diff options
context:
space:
mode:
authorJisheng Zhang <jszhang@kernel.org>2023-01-29 01:28:53 +0800
committerPalmer Dabbelt <palmer@rivosinc.com>2023-01-31 23:29:42 -0800
commitcabfd146b371462ed480a968f98eb0c2c80e3c8a (patch)
tree38df344a6023b4f31d3b03877eb0b550b7d0a820 /arch/riscv/kernel/vdso
parent8d23e94a443388e81c42ea7e476a5d79c1c795c9 (diff)
riscv: alternative: patch alternatives in the vDSO
Make it possible to use alternatives in the vDSO, so that better implementations can be used if possible. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Guo Ren <guoren@kernel.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20230128172856.3814-11-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/kernel/vdso')
-rw-r--r--arch/riscv/kernel/vdso/vdso.lds.S7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/riscv/kernel/vdso/vdso.lds.S b/arch/riscv/kernel/vdso/vdso.lds.S
index 150b1a572e61..4a0606633290 100644
--- a/arch/riscv/kernel/vdso/vdso.lds.S
+++ b/arch/riscv/kernel/vdso/vdso.lds.S
@@ -40,6 +40,13 @@ SECTIONS
. = 0x800;
.text : { *(.text .text.*) } :text
+ . = ALIGN(4);
+ .alternative : {
+ __alt_start = .;
+ *(.alternative)
+ __alt_end = .;
+ }
+
.data : {
*(.got.plt) *(.got)
*(.data .data.* .gnu.linkonce.d.*)