Le 13/04/2021 à 22:56, Ilya Leoshkevich a écrit :
> Provide the following definitions required by the common code:
>
> * ELF_NREG: with the value of sizeof(s390_regs) / sizeof(long).
> * target_elf_gregset_t: define it like all the other arches do.
> * elf_core_copy_regs(): similar to kernel's s390_regs_get().
> * USE_ELF_CORE_DUMP.
> * ELF_EXEC_PAGESIZE.
>
> Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
> ---
> linux-user/elfload.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/linux-user/elfload.c b/linux-user/elfload.c
> index c6731013fd..4e45bd1539 100644
> --- a/linux-user/elfload.c
> +++ b/linux-user/elfload.c
> @@ -1385,6 +1385,39 @@ static inline void init_thread(struct target_pt_regs
> *regs, struct image_info *i
> regs->gprs[15] = infop->start_stack;
> }
>
> +/* See linux kernel: arch/s390/include/uapi/asm/ptrace.h (s390_regs). */
> +#define ELF_NREG 27
> +typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
> +
> +enum {
> + TARGET_REG_PSWM = 0,
> + TARGET_REG_PSWA = 1,
> + TARGET_REG_GPRS = 2,
> + TARGET_REG_ARS = 18,
> + TARGET_REG_ORIG_R2 = 26,
> +};
> +
> +static void elf_core_copy_regs(target_elf_gregset_t *regs,
> + const CPUS390XState *env)
> +{
> + int i;
> + uint32_t *aregs;
> +
> + (*regs)[TARGET_REG_PSWM] = tswapreg(env->psw.mask);
> + (*regs)[TARGET_REG_PSWA] = tswapreg(env->psw.addr);
> + for (i = 0; i < 16; i++) {
> + (*regs)[TARGET_REG_GPRS + i] = tswapreg(env->regs[i]);
> + }
> + aregs = (uint32_t *)&((*regs)[TARGET_REG_ARS]);
> + for (i = 0; i < 16; i++) {
> + aregs[i] = tswap32(env->aregs[i]);
> + }
> + (*regs)[TARGET_REG_ORIG_R2] = 0;
> +}
> +
> +#define USE_ELF_CORE_DUMP
> +#define ELF_EXEC_PAGESIZE 4096
> +
> #endif /* TARGET_S390X */
>
> #ifdef TARGET_RISCV
>
Applied to my linux-user-for-6.1 branch.
Thanks,
Laurent
