linux-stable/tools
Adrian Hunter 62942e9fda perf script: Fix hex dump character output
Using grep -C with perf script -D can give erroneous results as grep loses
lines due to non-printable characters, for example, below the 0020, 0060
and 0070 lines are missing:

 $ perf script -D | grep -C10 AUX | head
 .  0010:  08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00  ................
 .  0030:  01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00  ................
 .  0040:  00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0050:  00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 .  0080:  02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00  ................
 .  0090:  00 00 00 00 00 00 00 00                          ........

 0 0 0x450 [0x98]: PERF_RECORD_AUXTRACE_INFO type: 1
   PMU Type            8
   Time Shift          31

perf's isprint() is a custom implementation from the kernel, but the
kernel's _ctype appears to include characters from Latin-1 Supplement which
is not compatible with, for example, UTF-8. Fix by checking also isascii().

After:

 $ tools/perf/perf script -D | grep -C10 AUX | head
 .  0010:  08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00  ................
 .  0020:  03 84 32 2f 00 00 00 00 63 7c 4f d2 fa ff ff ff  ..2/....c|O.....
 .  0030:  01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00  ................
 .  0040:  00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0050:  00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 .  0060:  00 02 00 00 00 00 00 00 00 c0 03 00 00 00 00 00  ................
 .  0070:  e2 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0080:  02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00  ................
 .  0090:  00 00 00 00 00 00 00 00                          ........

Fixes: 3052ba56bc ("tools perf: Move from sane_ctype.h obtained from git to the Linux's original")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20220112085057.277205-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-01-12 14:28:21 -03:00
..
accounting
arch tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources 2021-11-18 10:08:07 -03:00
bootconfig bootconfig: Cleanup dummy headers in tools/bootconfig 2021-10-10 22:16:02 -04:00
bpf tools/resolve_btfids: Skip unresolved symbol warning for empty BTF sets 2021-12-02 13:39:46 -08:00
build tools build: Enable warnings through HOSTCFLAGS 2021-12-07 22:18:23 -03:00
cgroup
counter tools/counter: Create Counter tools 2021-10-17 10:54:16 +01:00
debugging
edid
firewire
firmware
gpio
hv
iio
include tools headers UAPI: Add new macros for mem_hops field to perf_event.h 2021-12-22 09:34:43 -03:00
io_uring
kvm/kvm_stat KVM: kvm_stat: do not show halt_wait_ns 2021-10-18 14:07:18 -04:00
laptop
leds
lib libperf tests: Fix a spelling mistake "Runnnig" -> "Running" 2021-12-16 12:18:12 -03:00
memory-model
objtool objtool: Fix pv_ops noinstr validation 2021-12-03 09:11:42 +01:00
pci
pcmcia
perf perf script: Fix hex dump character output 2022-01-12 14:28:21 -03:00
power ACPI: tools: Fix compilation when output directory is not present 2021-12-08 15:10:27 +01:00
rcu
scripts tools, build: Add RISC-V to HOSTARCH parsing 2021-11-01 17:08:21 +01:00
spi
testing - Add support for handling hw errors in SGX pages: poisoning, recovering 2022-01-10 09:44:09 -08:00
thermal/tmon
time
tracing tools/latency-collector: Use correct size when writing queue_full_warning 2021-10-25 22:27:19 -04:00
usb
virtio
vm tools/vm/page-types.c: print file offset in hexadecimal 2021-11-06 13:30:40 -07:00
wmi
Makefile tools/lib/lockdep: drop liblockdep 2021-11-12 11:07:17 -08:00