[Crash-utility] [PATCH 7/8] RISCV64: Add 'mach' command support
With the patch we can get some basic machine state information,
crash> mach
MACHINE TYPE: riscv64
MEMORY SIZE: 1 GB
CPUS: 1
PROCESSOR SPEED: (unknown)
HZ: 250
PAGE SIZE: 4096
KERNEL STACK SIZE: 16384
Signed-off-by: Xianting Tian <xianting.tian(a)linux.alibaba.com>
---
riscv64.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/riscv64.c b/riscv64.c
index 475dc98..cbf75cf 100644
--- a/riscv64.c
+++ b/riscv64.c
@@ -139,10 +139,53 @@ static int riscv64_get_struct_page_max_shift(struct machine_specific
*ms)
return (int)ceil(log2(ms->struct_page_size));
}
+/*
+ * "mach" command output.
+ */
+static void
+riscv64_display_machine_stats(void)
+{
+ struct new_utsname *uts;
+ char buf[BUFSIZE];
+ ulong mhz;
+
+ uts = &kt->utsname;
+
+ fprintf(fp, " MACHINE TYPE: %s\n", uts->machine);
+ fprintf(fp, " MEMORY SIZE: %s\n", get_memory_size(buf));
+ fprintf(fp, " CPUS: %d\n", get_cpus_to_display());
+ fprintf(fp, " PROCESSOR SPEED: ");
+ if ((mhz = machdep->processor_speed()))
+ fprintf(fp, "%ld Mhz\n", mhz);
+ else
+ fprintf(fp, "(unknown)\n");
+ fprintf(fp, " HZ: %d\n", machdep->hz);
+ fprintf(fp, " PAGE SIZE: %d\n", PAGESIZE());
+ fprintf(fp, " KERNEL STACK SIZE: %ld\n", STACKSIZE());
+}
+
static void
riscv64_cmd_mach(void)
{
- /* TODO: */
+ int c;
+
+ while ((c = getopt(argcnt, args, "cmo")) != EOF) {
+ switch (c) {
+ case 'c':
+ case 'm':
+ case 'o':
+ option_not_supported(c);
+ break;
+ default:
+ argerrs++;
+ break;
+ }
+ }
+
+ if (argerrs)
+ cmd_usage(pc->curcmd, SYNOPSIS);
+
+ riscv64_display_machine_stats();
}
static int
--
2.17.1