On 12/4/21 10:29, Song Gao wrote:
> Signed-off-by: Song Gao <[email protected]>
> Signed-off-by: Xiaojuan Yang <[email protected]>
> Reviewed-by: Richard Henderson <[email protected]>
> ---
> include/elf.h | 2 ++
> linux-user/elfload.c | 58
> +++++++++++++++++++++++++++++++++++++
> linux-user/loongarch64/target_elf.h | 12 ++++++++
> 3 files changed, 72 insertions(+)
> create mode 100644 linux-user/loongarch64/target_elf.h
> +/* See linux kernel: arch/loongarch/include/asm/reg.h. */
> +enum {
> + TARGET_EF_R0 = 0,
> + TARGET_EF_CSR_ERA = TARGET_EF_R0 + 32,
> + TARGET_EF_CSR_BADVADDR = TARGET_EF_R0 + 33,
> +};
> +
> +/* See linux kernel: arch/loongarch/kernel/process.c:loongarch_dump_regs64.
> */
> +static void elf_core_copy_regs(target_elf_gregset_t *regs,
> + const CPULoongArchState *env)
> +{
> + int i;
> +
> + for (i = 0; i < TARGET_EF_R0; i++) {
> + (*regs)[i] = 0;
> + }
Dead code... Removing it:
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
> + (*regs)[TARGET_EF_R0] = 0;
> +
> + for (i = 1; i < ARRAY_SIZE(env->gpr); i++) {
> + (*regs)[TARGET_EF_R0 + i] = tswapreg(env->gpr[i]);
> + }
> +
> + (*regs)[TARGET_EF_CSR_ERA] = tswapreg(env->pc);
> + (*regs)[TARGET_EF_CSR_BADVADDR] = tswapreg(env->badaddr);
> +}
