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X-Received-From: 2607:f8b0:4864:20::544 Subject: [Qemu-devel] [PATCH 1/2] monitor: Add dump-stack command X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: david@gibson.dropbear.id.au, qemu-ppc@nongnu.org, dgilbert@redhat.com, Suraj Jitindar Singh , armbru@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add a monitor command "dump-stack" to be used to dump the stack for the current cpu. Signed-off-by: Suraj Jitindar Singh --- hmp-commands.hx | 13 +++++++++++++ hmp.h | 1 + include/qom/cpu.h | 10 ++++++++++ monitor.c | 12 ++++++++++++ qom/cpu.c | 10 ++++++++++ 5 files changed, 46 insertions(+) diff --git a/hmp-commands.hx b/hmp-commands.hx index 9b4035965c..965ccdea28 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -862,6 +862,19 @@ ETEXI }, STEXI +@item dump-stack +@findex dump-stack +dump stack of the cpu +ETEXI + { + .name = "dump-stack", + .args_type = "", + .params = "", + .help = "dump stack", + .cmd = hmp_dumpstack, + }, + +STEXI @item pmemsave @var{addr} @var{size} @var{file} @findex pmemsave save to disk physical memory dump starting at @var{addr} of size @var{size}. diff --git a/hmp.h b/hmp.h index 43617f2646..e6edf1215c 100644 --- a/hmp.h +++ b/hmp.h @@ -51,6 +51,7 @@ void hmp_announce_self(Monitor *mon, const QDict *qdict); void hmp_cpu(Monitor *mon, const QDict *qdict); void hmp_memsave(Monitor *mon, const QDict *qdict); void hmp_pmemsave(Monitor *mon, const QDict *qdict); +void hmp_dumpstack(Monitor *mon, const QDict *qdict); void hmp_ringbuf_write(Monitor *mon, const QDict *qdict); void hmp_ringbuf_read(Monitor *mon, const QDict *qdict); void hmp_cont(Monitor *mon, const QDict *qdict); diff --git a/include/qom/cpu.h b/include/qom/cpu.h index 08abcbd3fe..f2e83e9918 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -181,6 +181,7 @@ typedef struct CPUClass { int (*memory_rw_debug)(CPUState *cpu, vaddr addr, uint8_t *buf, int len, bool is_write); void (*dump_state)(CPUState *cpu, FILE *, int flags); + void (*dump_stack)(CPUState *cpu, FILE *f); GuestPanicInformation* (*get_crash_info)(CPUState *cpu); void (*dump_statistics)(CPUState *cpu, int flags); int64_t (*get_arch_id)(CPUState *cpu); @@ -568,6 +569,15 @@ enum CPUDumpFlags { void cpu_dump_state(CPUState *cpu, FILE *f, int flags); /** + * cpu_dump_stack: + * @cpu: The CPU whose stack is to be dumped. + * @f: If non-null, dump to this stream, else to current print sink. + * + * Dumps CPU stack. + */ +void cpu_dump_stack(CPUState *cpu, FILE *f); + +/** * cpu_dump_statistics: * @cpu: The CPU whose state is to be dumped. * @flags: Flags what to dump. diff --git a/monitor.c b/monitor.c index 9b5f10b475..dbec2e4376 100644 --- a/monitor.c +++ b/monitor.c @@ -1299,6 +1299,18 @@ static void hmp_info_registers(Monitor *mon, const QDict *qdict) } } +void hmp_dumpstack(Monitor *mon, const QDict *qdict) +{ + CPUState *cs = mon_get_cpu(); + + if (!cs) { + monitor_printf(mon, "No CPU available\n"); + return; + } + + cpu_dump_stack(cs, NULL); +} + #ifdef CONFIG_TCG static void hmp_info_jit(Monitor *mon, const QDict *qdict) { diff --git a/qom/cpu.c b/qom/cpu.c index 3c5493c96c..0dc10004f4 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -230,6 +230,16 @@ void cpu_dump_state(CPUState *cpu, FILE *f, int flags) } } +void cpu_dump_stack(CPUState *cpu, FILE *f) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (cc->dump_stack) { + cpu_synchronize_state(cpu); + cc->dump_stack(cpu, f); + } +} + void cpu_dump_statistics(CPUState *cpu, int flags) { CPUClass *cc = CPU_GET_CLASS(cpu);