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powerpc/xmon: Paginate kernel log buffer display

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The kernel log buffer is often much longer than the size of a terminal
so paginate it's output.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sam bobroff 2015-10-08 11:50:24 +11:00 committed by Michael Ellerman
parent 958b7c8050
commit 0c23a88ccc
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/xmon/xmon.c
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@ -242,9 +242,7 @@ Commands:\n\
" u dump TLB\n"
#endif
" ? help\n"
#ifdef CONFIG_PPC64
" # n limit output to n lines per page (dump paca only)\n"
#endif
" # n limit output to n lines per page (for dp, dpa, dl)\n"
" zr reboot\n\
zh halt\n"
;
@ -2333,10 +2331,12 @@ dump_log_buf(void)
sync();
kmsg_dump_rewind_nolock(&dumper);
xmon_start_pagination();
while (kmsg_dump_get_line_nolock(&dumper, false, buf, sizeof(buf), &len)) {
buf[len] = '\0';
printf("%s", buf);
}
xmon_end_pagination();
sync();
/* wait a little while to see if we get a machine check */