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kernel: rely on alignment directive for stacks

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. unnecessary to do it manually with ELF
	. also makes 1 extra alignment page unnecessary
This commit is contained in:
Ben Gras 2012-08-19 01:04:51 +02:00
parent 7ca1ce7968
commit caa7efa117
2 changed files with 3 additions and 7 deletions
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8
kernel/arch/i386/arch_system.c
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@ -244,12 +244,8 @@ void cpu_identify(void)
void arch_init(void) void arch_init(void)
{ {
/* FIXME stupid a.out k_stacks = (void*) &k_stacks_start;
* align the stacks in the stack are to the K_STACK_SIZE which is a assert(!((vir_bytes) k_stacks % K_STACK_SIZE));
* power of 2
*/
k_stacks = (void*) (((vir_bytes)&k_stacks_start + K_STACK_SIZE - 1) &
~(K_STACK_SIZE - 1));
#ifndef CONFIG_SMP #ifndef CONFIG_SMP
/* /*

2
kernel/arch/i386/mpx.S
View File

@ -521,7 +521,7 @@ LABEL(k_boot_stktop) /* top of kernel stack */
LABEL(k_stacks_start) LABEL(k_stacks_start)
/* two pages for each stack, one for data, other as a sandbox */ /* two pages for each stack, one for data, other as a sandbox */
.space 2 * (K_STACK_SIZE * (CONFIG_MAX_CPUS + 1)) .space 2 * (K_STACK_SIZE * CONFIG_MAX_CPUS)
LABEL(k_stacks_end) LABEL(k_stacks_end)