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/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <skiboot.h>
#include <lock.h>
#include <fsp.h>
#include <processor.h>
#include <cpu.h>
#include <stack.h>
unsigned long __stack_chk_guard = 0xdeadf00dbaad300d;
void __noreturn assert_fail(const char *msg)
{
prlog(PR_EMERG, "Assert fail: %s\n", msg);
abort();
}
void __noreturn abort(void)
{
static bool in_abort = false;
unsigned long hid0;
if (in_abort)
for (;;) ;
in_abort = true;
bust_locks = true;
op_display(OP_FATAL, OP_MOD_CORE, 0x6666);
prlog(PR_EMERG, "Aborting!\n");
backtrace();
/* XXX FIXME: We should fsp_poll for a while to ensure any pending
* console writes have made it out, but until we have decent PSI
* link handling we must not do it forever. Polling can prevent the
* FSP from bringing the PSI link up and it can get stuck in a
* reboot loop.
*/
hid0 = mfspr(SPR_HID0);
hid0 |= SPR_HID0_ENABLE_ATTN;
set_hid0(hid0);
trigger_attn();
for (;;) ;
}
char __attrconst tohex(uint8_t nibble)
{
static const char __tohex[] = {'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F'};
if (nibble > 0xf)
return '?';
return __tohex[nibble];
}
unsigned long get_symbol(unsigned long addr, char **sym, char **sym_end)
{
unsigned long prev = 0, next;
char *psym = NULL, *p = __sym_map_start;
*sym = *sym_end = NULL;
while(p < __sym_map_end) {
next = strtoul(p, &p, 16) | SKIBOOT_BASE;
if (next > addr && prev <= addr) {
p = psym + 3;;
if (p >= __sym_map_end)
return 0;
*sym = p;
while(p < __sym_map_end && *p != 10)
p++;
*sym_end = p;
return prev;
}
prev = next;
psym = p;
while(p < __sym_map_end && *p != 10)
p++;
p++;
}
return 0;
}
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