On 7/31/23 13:23, HAGIO KAZUHITO(萩尾 一仁) wrote: > On 2023/07/27 21:28, Ming Wang wrote: >> This patch are for Crash-utility tool, it make crash tool support on >> loongarch64 architecture and the common commands(bt, p, rd, mod, log, set, >> dis, and so on). >> >> The upstream GDB code supports the loongarch64 architecture from version 13.1. >> See: https://sourceware.org/gdb/download/ANNOUNCEMENT >> But Crash-utility depends on gdb-10.2, gdb-10.2 do NOT supported loongarch64. >> So we need a patch(gdb-10.2-loongarch.patch) to support it. I don't have a better >> way to deal with this problem at the moment. > > I have not seen the patch yet, but personally I don't have a plan to > rebase the embedded gdb for now and a rebase work is so hard, so if a > gdb patch works well for LoongArch, probably I will be able to accept it. Hi Kazu, Thanks for your feedback, I will send the patch later. Thanks, Ming > > Lianbo, do you have any plan to rebase the embedded gdb? > Usually we don't maintain two crash versions, so if we rebase it now, > RHEL9 crash will need a lot of backport efforts or major version > rebasing. I think maybe it's too early. > > Thanks, > Kazu > >> >> I test this patch on Loongson 3C50000 processor platform. >> ... >> KERNEL: /usr/lib/debug/lib/modules/5.10.0-60.102.0.128.oe2203.loongarch64/vmlinux >> DUMPFILE: /proc/kcore >> CPUS: 16 >> DATE: Thu Jul 27 19:51:21 CST 2023 >> UPTIME: 06:35:11 >> LOAD AVERAGE: 0.15, 0.03, 0.01 >> TASKS: 257 >> NODENAME: localhost.localdomain >> RELEASE: 5.10.0-60.102.0.128.oe2203.loongarch64 >> VERSION: #1 SMP Fri Jul 14 04:17:09 UTC 2023 >> MACHINE: loongarch64 (2200 Mhz) >> MEMORY: 64 GB >> PID: 2964 >> COMMAND: "crash" >> TASK: 9000000098805500 [THREAD_INFO: 9000000094d48000] >> CPU: 6 >> STATE: TASK_RUNNING (ACTIVE) >> crash> >> crash> dis -l start_kernel >> /linux-5.10.0-60.102.0.128.oe2203.loongarch64/init/main.c: 883 >> 0x9000000001030818 <start_kernel>: 0x0141ee40 >> /linux-5.10.0-60.102.0.128.oe2203.loongarch64/init/main.c: 879 >> 0x900000000103081c <start_kernel+4>: 0x90000000 >> /linux-5.10.0-60.102.0.128.oe2203.loongarch64/init/main.c: 883 >> 0x9000000001030820 <start_kernel+8>: addu16i.d $zero, $t8, 8179(0x1ff3) >> /linux-5.10.0-60.102.0.128.oe2203.loongarch64/init/main.c: 879 >> ... >> >> About the LoongArch64 Architecture: >> https://www.kernel.org/doc/html/latest/loongarch/index.html >> >> After this RFC, I will split this big patch to many small patchs by function, >> like RISCV64 patch sets. >> >> Ming Wang (1): >> loongarch64: Support loongarch64 architecture and common commands >> >> Makefile | 9 +- >> README | 4 +- >> configure.c | 27 +- >> crash.8 | 2 +- >> defs.h | 161 +- >> diskdump.c | 24 +- >> gdb-10.2-loongarch.patch | 15207 +++++++++++++++++++++++++++++++++++++ >> gdb_interface.c | 1 - >> help.c | 9 +- >> lkcd_vmdump_v1.h | 2 +- >> lkcd_vmdump_v2_v3.h | 5 +- >> loongarch64.c | 1347 ++++ >> main.c | 3 +- >> netdump.c | 26 +- >> ramdump.c | 2 + >> symbols.c | 26 +- >> 16 files changed, 16832 insertions(+), 23 deletions(-) >> create mode 100644 gdb-10.2-loongarch.patch >> create mode 100644 loongarch64.c >> >> >> base-commit: c74f375e0ef7cd9b593fa1d73c47505822c8f2a0 -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/crash-utility Contribution Guidelines: https://github.com/crash-utility/crash/wiki
