[PATCH v2 06/25] x86_64: modify mach -c to hide offline cpus' data

[Qiao Nuohan <qiaonuohan@xxxxxxxxxxxxxx>]

mach -c will display some per-cpu structures. This patch will hide
offline cpus' structures.

The original output is like below:
<cut>
crash> mach -c
...
  cpu_index = 1,
  microcode = 1
}

CPU 2:
struct cpuinfo_x86 {
  x86 = 6 '\006',
  x86_vendor = 0 '\000',
  x86_model = 2 '\002',
  x86_mask = 3 '\003',
  x86_tlbsize = 0,
  x86_virt_bits = 48 '0',
  x86_phys_bits = 40 '(',
...
<cut>

With data of offline cpu(cpu #2) hiden, the output is like below:
<cut>
crash> mach -c
...
  cpu_index = 1,
  microcode = 1
}

CPU 2: <OFFLINE>

CPU 3:
struct cpuinfo_x86 {
struct cpuinfo_x86 {
  x86 = 6 '\006',
  x86_vendor = 0 '\000',
  x86_model = 2 '\002',
  x86_mask = 3 '\003',
  x86_tlbsize = 0,
...
<cut>

Signed-off-by: Qiao Nuohan <qiaonuohan@xxxxxxxxxxxxxx>
---
 x86_64.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/x86_64.c b/x86_64.c
index 69d7ea8..473ea8b 100755
--- a/x86_64.c
+++ b/x86_64.c
@@ -5163,8 +5163,13 @@ x86_64_display_cpu_data(unsigned int radix)
         for (cpu = 0; cpu < cpus; cpu++) {
 		if (boot_cpu)
                 	fprintf(fp, "BOOT CPU:\n");
-		else
-                	fprintf(fp, "%sCPU %d:\n", cpu ? "\n" : "", cpu);
+		else {
+			if (hide_offline_cpu(cpu)) {
+				fprintf(fp, "%sCPU %d: <OFFLINE>\n", cpu ? "\n" : "", cpu);
+				continue;
+			} else
+				fprintf(fp, "%sCPU %d:\n", cpu ? "\n" : "", cpu);
+		}
 
 		if (per_cpu)
 			cpu_data = per_cpu->value + kt->__per_cpu_offset[cpu];
-- 
1.8.5.3

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