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platform: Make the platform read-only

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platform should be a read-only variable, if it is placed in the data
segment, it may be exploited.

Signed-off-by: Xiang Wang <wxjstz@126.com>
This commit is contained in:
Xiang Wang
2019-03-06 15:29:34 +08:00
committed by Atish Patra
parent 27fae182dc
commit 9eb8f0f90d
11 changed files with 45 additions and 43 deletions
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2
lib/sbi_timer.c
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@@ -39,7 +39,7 @@ u64 get_ticks(void)
u64 sbi_timer_value(struct sbi_scratch *scratch)
{
struct sbi_platform *plat = sbi_platform_ptr(scratch);
const struct sbi_platform *plat = sbi_platform_ptr(scratch);
if (sbi_platform_has_timer_value(plat))
return sbi_platform_timer_value(plat);