Resending to the new crash list address (without kexec list)
On 2023/12/04 19:50, Song Shuai wrote:
> With the patch we can get full dump of "struct elf_prstatus" in 'help -n':
>
> ```
> crash> help -n
> <snip>
> Elf64_Nhdr:
> n_namesz: 5 ("CORE")
> n_descsz: 376
> n_type: 1 (NT_PRSTATUS)
> si.signo: 0 si.code: 0 si.errno: 0
> cursig: 0 sigpend: 0 sighold: 0
> pid: 0 ppid: 0 pgrp: 0 sid:0
> utime: 0.000000 stime: 0.000000
> cutime: 0.000000 cstime: 0.000000
> epc: ffffffff80822426 ra: ffffffff80822422 sp: ff20000000093f20
> gp: ffffffff814ee2a8 tp: ff60000000104800 t0: ff2000000027bb18
> t1: 0000000000000088 t2: 0000000000000000 s0: ff20000000093f30
> s1: 0000000000000001 a0: 0000000000000004 a1: 0000000000000008
> a2: ff6000009e9f0000 a3: 0000000000005fe4 a4: ffffffff80c1c290
> a5: 0000000000000000 a6: ff6000001f60a6b0 a7: 00000088e4450548
> s2: ffffffff814ef220 s3: 0000000000000002 s4: 000000000000003f
> s8: ffffffff814ef3d8 s9: 0000000000000000 s10: ffffffff814ef0d0
> s11: ffffffff81525d10 t3: ffffffff80c1d840 t4: 0000000000000000
> t5: 0000000000000001 t6: 00000000000000aa
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> 0000000000000000 0000000000000000
> ffffffff80822426 ffffffff80822422
> ff20000000093f20 ffffffff814ee2a8
> ff60000000104800 ff2000000027bb18
> <snip>
> ```
>
> Signed-off-by: Song Shuai <songshuaishuai@xxxxxxxxxxx>
> ---
> netdump.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 83 insertions(+)
>
> diff --git a/netdump.c b/netdump.c
> index 3907863..b266b27 100644
> --- a/netdump.c
> +++ b/netdump.c
> @@ -2578,6 +2578,8 @@ dump_Elf64_Nhdr(Elf64_Off offset, int store)
> display_ELF_note(EM_PPC64, PRSTATUS_NOTE, note, nd->ofp);
> if (machine_type("ARM64") && (note->n_type == NT_PRSTATUS))
> display_ELF_note(EM_AARCH64, PRSTATUS_NOTE, note, nd->ofp);
> + if (machine_type("RISCV64") && (note->n_type == NT_PRSTATUS))
> + display_ELF_note(EM_RISCV, PRSTATUS_NOTE, note, nd->ofp);
> }
> for (i = lf = 0; i < note->n_descsz/sizeof(ulonglong); i++) {
> if (((i%2)==0)) {
> @@ -3399,6 +3401,79 @@ display_prstatus_arm64(void *note_ptr, FILE *ofp)
> space(sp), pr->pr_reg[33], pr->pr_fpvalid);
> }
>
> +struct riscv64_elf_siginfo {
> + int si_signo;
> + int si_code;
> + int si_errno;
> +};
> +
> +struct riscv64_elf_prstatus {
> + struct riscv64_elf_siginfo pr_info;
> + short pr_cursig;
> + unsigned long pr_sigpend;
> + unsigned long pr_sighold;
> + pid_t pr_pid;
> + pid_t pr_ppid;
> + pid_t pr_pgrp;
> + pid_t pr_sid;
> + struct timeval pr_utime;
> + struct timeval pr_stime;
> + struct timeval pr_cutime;
> + struct timeval pr_cstime;
> +/* elf_gregset_t pr_reg; => typedef struct user_regs_struct elf_gregset_t; */
> + unsigned long pr_reg[32];
> + int pr_fpvalid;
> +};
> +
> +static void
> +display_prstatus_riscv64(void *note_ptr, FILE *ofp)
> +{
> + struct riscv64_elf_prstatus *pr;
> + Elf64_Nhdr *note;
> + int sp;
> +
> + note = (Elf64_Nhdr *)note_ptr;
> + pr = (struct riscv64_elf_prstatus *)(
> + (char *)note + sizeof(Elf64_Nhdr) + note->n_namesz);
> + pr = (struct riscv64_elf_prstatus *)roundup((ulong)pr, 4);
> + sp = nd->num_prstatus_notes ? 25 : 22;
> +
> + fprintf(ofp,
> + "%ssi.signo: %d si.code: %d si.errno: %d\n"
> + "%scursig: %d sigpend: %lx sighold: %lx\n"
> + "%spid: %d ppid: %d pgrp: %d sid:%d\n"
> + "%sutime: %01lld.%06d stime: %01lld.%06d\n"
> + "%scutime: %01lld.%06d cstime: %01lld.%06d\n",
> + space(sp), pr->pr_info.si_signo, pr->pr_info.si_code, pr->pr_info.si_errno,
> + space(sp), pr->pr_cursig, pr->pr_sigpend, pr->pr_sighold,
> + space(sp), pr->pr_pid, pr->pr_ppid, pr->pr_pgrp, pr->pr_sid,
> + space(sp), (long long)pr->pr_utime.tv_sec, (int)pr->pr_utime.tv_usec,
> + (long long)pr->pr_stime.tv_sec, (int)pr->pr_stime.tv_usec,
> + space(sp), (long long)pr->pr_cutime.tv_sec, (int)pr->pr_cutime.tv_usec,
> + (long long)pr->pr_cstime.tv_sec, (int)pr->pr_cstime.tv_usec);
> + fprintf(ofp,
> + "%sepc: %016lx ra: %016lx sp: %016lx\n"
> + "%s gp: %016lx tp: %016lx t0: %016lx\n"
> + "%s t1: %016lx t2: %016lx s0: %016lx\n"
> + "%s s1: %016lx a0: %016lx a1: %016lx\n"
> + "%s a2: %016lx a3: %016lx a4: %016lx\n"
> + "%s a5: %016lx a6: %016lx a7: %016lx\n"
> + "%s s2: %016lx s3: %016lx s4: %016lx\n"
> + "%s s8: %016lx s9: %016lx s10: %016lx\n"
> + "%ss11: %016lx t3: %016lx t4: %016lx\n"
> + "%s t5: %016lx t6: %016lx\n",
10 lines.
> + space(sp), pr->pr_reg[0], pr->pr_reg[1], pr->pr_reg[2],
> + space(sp), pr->pr_reg[3], pr->pr_reg[4], pr->pr_reg[5],
> + space(sp), pr->pr_reg[6], pr->pr_reg[7], pr->pr_reg[8],
> + space(sp), pr->pr_reg[9], pr->pr_reg[10], pr->pr_reg[11],
> + space(sp), pr->pr_reg[12], pr->pr_reg[13], pr->pr_reg[14],
> + space(sp), pr->pr_reg[15], pr->pr_reg[16], pr->pr_reg[17],
> + space(sp), pr->pr_reg[18], pr->pr_reg[19], pr->pr_reg[20],
> + space(sp), pr->pr_reg[21], pr->pr_reg[22], pr->pr_reg[23],
> + space(sp), pr->pr_reg[24], pr->pr_reg[25], pr->pr_reg[26],
> + space(sp), pr->pr_reg[27], pr->pr_reg[28], pr->pr_reg[29],
> + space(sp), pr->pr_reg[30], pr->pr_reg[31]);
11 lines. It looks short of the format string. (s5 - s7?)
$ make warn TARGET=RISCV64
...
cc -c -g -DRISCV64 -DGDB_10_2 netdump.c -Wall -O2 -Wstrict-prototypes -Wmissing-prototypes -fstack-protector -Wformat-security
netdump.c: In function 'display_prstatus_riscv64':
netdump.c:3455:3: warning: too many arguments for format [-Wformat-extra-args]
"%sepc: %016lx ra: %016lx sp: %016lx\n"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks,
Kazu
> +}
>
> void
> display_ELF_note(int machine, int type, void *note, FILE *ofp)
> @@ -3449,6 +3524,14 @@ display_ELF_note(int machine, int type, void *note, FILE *ofp)
> break;
> }
> break;
> + case EM_RISCV:
> + switch (type)
> + {
> + case PRSTATUS_NOTE:
> + display_prstatus_riscv64(note, ofp);
> + break;
> + }
> + break;
>
> default:
> return;
--
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