Re: [Crash-utility] [PATCH] MIPS32/64: Add 'irq' command support

Added support for the 'irq' series of commands in the MIPS32/64 architecture, except for the 'irq -d' command, others can be used. The result of using the 'irq' command without this patch is as follows: irq: cannot determine number of IRQs Signed-off-by: Youling Tang <tangyouling(a)loongson.cn&gt;

--- mips.c | 10 ++++++++-- mips64.c | 14 ++++++++++++++ 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/mips.c b/mips.c index f73dfad..d6602e3 100644 --- a/mips.c +++ b/mips.c @@ -1126,8 +1126,14 @@ mips_init(int when) machdep->get_irq_affinity = generic_get_irq_affinity; machdep->section_size_bits = _SECTION_SIZE_BITS; machdep->max_physmem_bits = _MAX_PHYSMEM_BITS; - ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc, - "irq_desc", NULL, 0); + + if (symbol_exists("irq_desc")) + ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc, + "irq_desc", NULL, 0); + else if (kernel_symbol_exists("nr_irqs")) + get_symbol_data("nr_irqs", sizeof(unsigned int), + &machdep->nr_irqs); + mips_stackframe_init(); if (!machdep->hz) diff --git a/mips64.c b/mips64.c index 62ed799..b1d6acf 100644 --- a/mips64.c +++ b/mips64.c @@ -1160,6 +1160,9 @@ mips64_dump_machdep_table(ulong arg) fprintf(fp, " is_task_addr: mips64_is_task_addr()\n"); fprintf(fp, " verify_symbol: mips64_verify_symbol()\n"); fprintf(fp, " dis_filter: generic_dis_filter()\n"); + fprintf(fp, " dump_irq: generic_dump_irq()\n"); + fprintf(fp, " show_interrupts: generic_show_interrupts()\n"); + fprintf(fp, " get_irq_affinity: generic_get_irq_affinity()\n"); fprintf(fp, " cmd_mach: mips64_cmd_mach()\n"); fprintf(fp, " get_smp_cpus: mips64_get_smp_cpus()\n"); fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n"); @@ -1246,6 +1249,9 @@ mips64_init(int when) machdep->is_task_addr = mips64_is_task_addr; machdep->get_smp_cpus = mips64_get_smp_cpus; machdep->dis_filter = generic_dis_filter; + machdep->dump_irq = generic_dump_irq; + machdep->show_interrupts = generic_show_interrupts; + machdep->get_irq_affinity = generic_get_irq_affinity; machdep->value_to_symbol = generic_machdep_value_to_symbol; machdep->init_kernel_pgd = NULL; break; @@ -1257,6 +1263,14 @@ mips64_init(int when) mips64_stackframe_init(); if (!machdep->hz) machdep->hz = 250; + + if (symbol_exists("irq_desc")) + ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc, + "irq_desc", NULL, 0); + else if (kernel_symbol_exists("nr_irqs")) + get_symbol_data("nr_irqs", sizeof(unsigned int), + &machdep->nr_irqs); + MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus", "pr_reg"); STRUCT_SIZE_INIT(note_buf, "note_buf_t"); -- 2.1.0