perf: script: prefer capstone to XED

Now perf can show assembly instructions with libcapstone for x86, and the
capstone is better in general.

Signed-off-by: Changbin Du <[e-mail]>
Reviewed-by: Adrian Hunter <[e-mail]>
Cc: [e-mail]
Cc: Thomas Richter <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Signed-off-by: Namhyung Kim <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

tools/perf/Documentation/perf-intel-pt.txt

···
 
 perf script also supports higher level ways to dump instruction traces:
 
+	perf script --insn-trace=disasm
+
+or to use the xed disassembler, which requires installing the xed tool
+(see XED below):
+
 	perf script --insn-trace --xed
 
-Dump all instructions. This requires installing the xed tool (see XED below)
 Dumping all instructions in a long trace can be fairly slow. It is usually better
 to start with higher level decoding, like
 
···
 and then select a time range of interest. The time range can then be examined
 in detail with
 
-	perf script --time starttime,stoptime --insn-trace --xed
+	perf script --time starttime,stoptime --insn-trace=disasm
 
 While examining the trace it's also useful to filter on specific CPUs using
 the -C option
 
-	perf script --time starttime,stoptime --insn-trace --xed -C 1
+	perf script --time starttime,stoptime --insn-trace=disasm -C 1
 
 Dump all instructions in time range on CPU 1.
 
···
 
 perf script can be used to provide an instruction trace
 
- $ perf script --guestkallsyms $KALLSYMS --insn-trace --xed -F+ipc | grep -C10 vmresume | head -21
+ $ perf script --guestkallsyms $KALLSYMS --insn-trace=disasm -F+ipc | grep -C10 vmresume | head -21
        CPU 0/KVM  1440  ffffffff82133cdd __vmx_vcpu_run+0x3d ([kernel.kallsyms])                movq  0x48(%rax), %r9
        CPU 0/KVM  1440  ffffffff82133ce1 __vmx_vcpu_run+0x41 ([kernel.kallsyms])                movq  0x50(%rax), %r10
        CPU 0/KVM  1440  ffffffff82133ce5 __vmx_vcpu_run+0x45 ([kernel.kallsyms])                movq  0x58(%rax), %r11
···
 
 'perf script' can be used to provide an instruction trace showing timestamps
 
- $ perf script -i perf.data.kvm --guestkallsyms $KALLSYMS --insn-trace --xed -F+ipc | grep -C10 vmresume | head -21
+ $ perf script -i perf.data.kvm --guestkallsyms $KALLSYMS --insn-trace=disasm -F+ipc | grep -C10 vmresume | head -21
        CPU 1/KVM 17006 [001] 11500.262865593:  ffffffff82133cdd __vmx_vcpu_run+0x3d ([kernel.kallsyms])                 movq  0x48(%rax), %r9
        CPU 1/KVM 17006 [001] 11500.262865593:  ffffffff82133ce1 __vmx_vcpu_run+0x41 ([kernel.kallsyms])                 movq  0x50(%rax), %r10
        CPU 1/KVM 17006 [001] 11500.262865593:  ffffffff82133ce5 __vmx_vcpu_run+0x45 ([kernel.kallsyms])                 movq  0x58(%rax), %r11

tools/perf/ui/browsers/res_sample.c

···
 		     r->tid ? "--tid " : "",
 		     r->tid ? (sprintf(tidbuf, "%d", r->tid), tidbuf) : "",
 		     extra_format,
-		     rstype == A_ASM ? "-F +insn --xed" :
+		     rstype == A_ASM ? "-F +disasm" :
 		     rstype == A_SOURCE ? "-F +srcline,+srccode" : "",
 		     symbol_conf.inline_name ? "--inline" : "",
 		     "--show-lost-events ",

tools/perf/ui/browsers/scripts.c

···
 	if (evsel)
 		attr_to_script(scriptc.extra_format, &evsel->core.attr);
 	add_script_option("Show individual samples", "", &scriptc);
-	add_script_option("Show individual samples with assembler", "-F +insn --xed",
+	add_script_option("Show individual samples with assembler", "-F +disasm",
 			  &scriptc);
 	add_script_option("Show individual samples with source", "-F +srcline,+srccode",
 			  &scriptc);