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Enabled the "crash --log vmcore" command line option on the ARM64

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architecture.  Without the patch, the option fails with the message
"crash: crash --log not implemented on ARM64: TBD".
(anderson@redhat.com)
This commit is contained in:
Dave Anderson 2015-06-04 14:01:38 -04:00
parent 2e84d38c93
commit 23939b2c44
1 changed files with 10 additions and 4 deletions
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14
arm64.c
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@ -289,9 +289,9 @@ arm64_init(int when)
case LOG_ONLY:
machdep->machspec = &arm64_machine_specific;
error(FATAL, "crash --log not implemented on ARM64: TBD\n");
/* machdep->identity_map_base = ARM64_PAGE_OFFSET; */
arm64_calc_VA_BITS();
arm64_calc_phys_offset();
machdep->machspec->page_offset = ARM64_PAGE_OFFSET;
break;
}
}
@ -1910,6 +1910,7 @@ arm64_calc_VA_BITS(void)
{
int bitval;
struct syment *sp;
ulong value;
if (!(sp = symbol_search("swapper_pg_dir")) &&
!(sp = symbol_search("idmap_pg_dir")) &&
@ -1921,8 +1922,13 @@ arm64_calc_VA_BITS(void)
}
}
for (bitval = highest_bit_long(sp->value); bitval; bitval--) {
if ((sp->value & (1UL << bitval)) == 0) {
if (sp)
value = sp->value;
else
value = kt->vmcoreinfo.log_buf_SYMBOL; /* crash --log */
for (bitval = highest_bit_long(value); bitval; bitval--) {
if ((value & (1UL << bitval)) == 0) {
machdep->machspec->VA_BITS = bitval + 2;
break;
}