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init: Move stack canary initialization after setup_arch 

Stack canary intialization involves getting a random number.
Getting this random number may involve accessing caches or other
architectural specific features which are not available until
after the architecture is setup. Move the stack canary initialization
later to accomodate this.

Change-Id: I00b564a2c3172229a44339c061fa380c17fe7d8e
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
This commit is contained in:
Laura Abbott 2013-08-13 11:37:53 -07:00 committed by Stephen Boyd
parent b5226c05a2
commit 3e3fe67789
1 changed files with 4 additions and 5 deletions
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9
init/main.c
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@ -483,11 +483,6 @@ asmlinkage void __init start_kernel(void)
smp_setup_processor_id();
debug_objects_early_init();
/*
* Set up the the initial canary ASAP:
*/
boot_init_stack_canary();
cgroup_init_early();
local_irq_disable();
@ -501,6 +496,10 @@ asmlinkage void __init start_kernel(void)
page_address_init();
pr_notice("%s", linux_banner);
setup_arch(&command_line);
/*
* Set up the the initial canary ASAP:
*/
boot_init_stack_canary();
mm_init_owner(&init_mm, &init_task);
mm_init_cpumask(&init_mm);
setup_command_line(command_line);