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spl: fix stack usage check if gd is not initialized 

Most platforms do not set up gd->start_addr_sp in SPL. Since this is
required for CONFIG_SPL_SYS_REPORT_SACK_F_USAGE to work correctly, set
up gd->start_addr_sp in SPL to the value passed to
board_init_f_init_reserve if it is not set yet.

Fixes: d8c0332031 ("spl: implement stack usage check")
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
This commit is contained in:
Simon Goldschmidt 2019-11-11 22:30:46 +01:00 committed by Tom Rini
parent 8947145cd0
commit c82abaa5d6
1 changed files with 17 additions and 0 deletions
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17
common/init/board_init.c
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@ -18,6 +18,19 @@ __weak void arch_setup_gd(struct global_data *gd_ptr)
}
#endif /* !CONFIG_X86 && !CONFIG_ARM */
/**
* This function is called from board_init_f_init_reserve to set up
* gd->start_addr_sp for stack protection if not already set otherwise
*/
__weak void board_init_f_init_stack_protection_addr(ulong base)
{
#if CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE)
/* set up stack pointer for stack usage if not set yet */
if (!gd->start_addr_sp)
gd->start_addr_sp = base;
#endif
}
/**
* This function is called after the position of the initial stack is
* determined in gd->start_addr_sp. Boards can override it to set up
@ -129,6 +142,10 @@ void board_init_f_init_reserve(ulong base)
#if !defined(CONFIG_ARM)
arch_setup_gd(gd_ptr);
#endif
if (CONFIG_IS_ENABLED(SYS_REPORT_STACK_F_USAGE))
board_init_f_init_stack_protection_addr(base);
/* next alloc will be higher by one GD plus 16-byte alignment */
base += roundup(sizeof(struct global_data), 16);