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bootstage: Avoid conflicts between stash/unstash

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At present there is a single shared address for bootstage data in both
TPL and SPL. If SPL unstashs TPL bootstage info and then stashes it again
to pass it to U-Boot, the new stash overwrites the strings of the old
stash.

Fix this by duplicating the strings into the malloc() region. This should
be a small code. Fix the header-file order at the same time.

This problem doesn't happen at the next stage (SPL->U-Boot) since U-Boot
relocates the boostage data.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2019-10-21 17:26:49 -06:00
parent ed54bdaf88
commit 65b2d96f4c
1 changed files with 4 additions and 1 deletions
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5
common/bootstage.c
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@ -10,9 +10,10 @@
*/
#include <common.h>
#include <linux/libfdt.h>
#include <malloc.h>
#include <spl.h>
#include <linux/compiler.h>
#include <linux/libfdt.h>
DECLARE_GLOBAL_DATA_PTR;
@ -472,6 +473,8 @@ int bootstage_unstash(const void *base, int size)
for (rec = data->record + data->next_id, i = 0; i < hdr->count;
i++, rec++) {
rec->name = ptr;
if (spl_phase() == PHASE_SPL)
rec->name = strdup(ptr);
/* Assume no data corruption here */
ptr += strlen(ptr) + 1;