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authorStefan Reinauer <reinauer@chromium.org>2012-10-15 15:19:43 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2012-11-13 18:25:17 +0100
commit75dbc389ec62d9ec85178eb5364850c7f9a77997 (patch)
treed8edbdbea72689f646774f87e1d419ebcd6dd5f3 /src/cpu/x86
parent4221a195745837b05725d7ffeda415516ac44a7f (diff)
downloadcoreboot-75dbc389ec62d9ec85178eb5364850c7f9a77997.tar.xz
Clean up stack checking code
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>
Diffstat (limited to 'src/cpu/x86')
-rw-r--r--src/cpu/x86/lapic/lapic_cpu_init.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/src/cpu/x86/lapic/lapic_cpu_init.c b/src/cpu/x86/lapic/lapic_cpu_init.c
index 6c01d8c3a1..621990c0e5 100644
--- a/src/cpu/x86/lapic/lapic_cpu_init.c
+++ b/src/cpu/x86/lapic/lapic_cpu_init.c
@@ -22,6 +22,7 @@
#include <cpu/x86/lapic.h>
#include <delay.h>
+#include <lib.h>
#include <string.h>
#include <console/console.h>
#include <arch/hlt.h>
@@ -240,7 +241,6 @@ volatile unsigned int secondary_cpu_index;
int start_cpu(device_t cpu)
{
- extern unsigned char _estack[];
struct cpu_info *info;
unsigned long stack_end;
unsigned long stack_base;
@@ -503,21 +503,8 @@ static void wait_other_cpus_stop(struct bus *cpu_bus)
}
}
printk(BIOS_DEBUG, "All AP CPUs stopped (%ld loops)\n", loopcount);
- for(i = 1; i <= last_cpu_index; i++){
- unsigned long *stack = stacks[i];
- int lowest;
- int maxstack = (CONFIG_STACK_SIZE - sizeof(struct cpu_info))
- /sizeof(*stack) - 1;
- if (stack[0] != 0xDEADBEEF)
- printk(BIOS_ERR, "CPU%d overran its stack\n", i);
- for(lowest = 0; lowest < maxstack; lowest++)
- if (stack[lowest] != 0xDEADBEEF)
- break;
- printk(BIOS_SPEW, "CPU%d: stack allocated from %p to %p:", i,
- stack, &stack[maxstack]);
- printk(BIOS_SPEW, "lowest stack address was %p\n",
- &stack[lowest]);
- }
+ for(i = 1; i <= last_cpu_index; i++)
+ checkstack((void *)stacks[i] + CONFIG_STACK_SIZE, i);
}
#endif /* CONFIG_SMP */