linux/arch/riscv
Jisheng Zhang 8d23e94a44
riscv: switch to relative alternative entries
Instead of using absolute addresses for both the old instrucions and
the alternative instructions, use offsets relative to the alt_entry
values. So this not only cuts the size of the alternative entry, but
also meets the prerequisite for patching alternatives in the vDSO,
since absolute alternative entries are subject to dynamic relocation,
which is incompatible with the vDSO building.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230128172856.3814-10-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-01-31 23:29:41 -08:00
..
boot RISC-V: kbuild: convert all use of SOC_FOO to ARCH_FOO 2022-12-27 18:01:40 +00:00
configs RISC-V Patches for the 6.2 Merge Window, Part 1 2022-12-14 15:23:49 -08:00
errata riscv: switch to relative alternative entries 2023-01-31 23:29:41 -08:00
include riscv: switch to relative alternative entries 2023-01-31 23:29:41 -08:00
kernel riscv: switch to relative alternative entries 2023-01-31 23:29:41 -08:00
kvm RISC-V: KVM: Add ONE_REG interface for mvendorid, marchid, and mimpid 2022-12-07 09:17:49 +05:30
lib riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit 2022-08-10 14:06:31 -07:00
mm RISC-V Patches for the 6.2 Merge Window, Part 1 2022-12-14 15:23:49 -08:00
net riscv, bpf: Emit fixed-length instructions for BPF_PSEUDO_FUNC 2022-12-06 20:59:27 +01:00
purgatory riscv/purgatory: Omit use of bin2c 2022-08-11 09:32:34 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig RISC-V Patches for the 6.2 Merge Window, Part 1 2022-12-14 15:23:49 -08:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Kconfig.erratas drivers/perf: riscv_pmu_sbi: add support for PMU variant on T-Head C9xx cores 2022-10-27 14:35:20 -07:00
Kconfig.socs RISC-V: Kconfig: Remove trailing whitespace 2023-01-24 18:09:12 -08:00
Makefile RISC-V: kbuild: convert all use of SOC_FOO to ARCH_FOO 2022-12-27 18:01:40 +00:00