75dbc389ec
Several small improvements of the stack checking code:
- move the CPU0 stack check right before jumping to the payload
and out of hardwaremain (that file is too crowded anyways)
- fix prototype in lib.h
- print size of used stack
- use checkstack function both on CPU0 and CPU1-x
- print amount of stack used per core
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Test: Boot coreboot on Link, see the following output:
...
CPU1: stack: 00156000 - 00157000, lowest used address 00156c68,
stack used: 920 bytes
CPU2: stack: 00155000 - 00156000, lowest used address 00155c68,
stack used: 920 bytes
CPU3: stack: 00154000 - 00155000, lowest used address 00154c68,
stack used: 920 bytes
...
Jumping to boot code at 1110008
CPU0: stack: 00157000 - 00158000, lowest used address 00157af8,
stack used: 1288 bytes
Change-Id: I7b83eeee0186559a0a62daa12e3f7782990fd2df
Reviewed-on: http://review.coreboot.org/1787
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/*
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This software and ancillary information (herein called SOFTWARE )
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called LinuxBIOS is made available under the terms described
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here. The SOFTWARE has been approved for release with associated
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LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has
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been authored by an employee or employees of the University of
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California, operator of the Los Alamos National Laboratory under
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Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The
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U.S. Government has rights to use, reproduce, and distribute this
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SOFTWARE. The public may copy, distribute, prepare derivative works
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and publicly display this SOFTWARE without charge, provided that this
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Notice and any statement of authorship are reproduced on all copies.
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Neither the Government nor the University makes any warranty, express
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or implied, or assumes any liability or responsibility for the use of
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this SOFTWARE. If SOFTWARE is modified to produce derivative works,
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such modified SOFTWARE should be clearly marked, so as not to confuse
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it with the version available from LANL.
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*/
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/* Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL
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* rminnich@lanl.gov
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*/
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#include <lib.h>
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#include <console/console.h>
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int checkstack(void *top_of_stack, int core)
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{
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int i;
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u32 *stack = (u32 *) (top_of_stack - CONFIG_STACK_SIZE);
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if (stack[0] != 0xDEADBEEF){
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printk(BIOS_ERR, "Stack overrun on CPU%d."
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"Increase stack from current %d bytes\n",
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CONFIG_STACK_SIZE, core);
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return -1;
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}
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for(i = 1; i < CONFIG_STACK_SIZE/sizeof(stack[0]); i++){
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if (stack[i] == 0xDEADBEEF)
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continue;
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printk(BIOS_SPEW, "CPU%d: stack: %p - %p, ",
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core, stack,
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&stack[CONFIG_STACK_SIZE/sizeof(stack[0])]);
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printk(BIOS_SPEW, "lowest used address %p, ", &stack[i]);
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printk(BIOS_SPEW, "stack used: %ld bytes\n",
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(unsigned long)&stack[CONFIG_STACK_SIZE /
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sizeof(stack[0])] - (unsigned long)&stack[i]);
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return 0;
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}
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return 0;
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}
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