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Improve debug assertion for runtime svc number

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This patch improves the debug assertion for runtime svc number
 - Remove useless comparison ensuring that the number of descriptors
   is a positive number. The variable is an unsigned integer so can't
   be negative.
 - Check that the end address of the descriptors is sane relative
   to the start address.

Change-Id: Iea7be6b34e33b8b1cbd394eb923cc834ea964831
This commit is contained in:
Soby Mathew
2016-07-26 16:09:44 +01:00
parent 3dd9835f8a
commit 5e5e41625e
1 changed files with 2 additions and 1 deletions
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3
common/runtime_svc.c
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@@ -87,7 +87,8 @@ void runtime_svc_init(void)
int rc = 0, index, start_idx, end_idx;
/* Assert the number of descriptors detected are less than maximum indices */
assert((RT_SVC_DECS_NUM >= 0) && (RT_SVC_DECS_NUM < MAX_RT_SVCS));
assert((RT_SVC_DESCS_END >= RT_SVC_DESCS_START) &&
(RT_SVC_DECS_NUM < MAX_RT_SVCS));
/* If no runtime services are implemented then simply bail out */
if (RT_SVC_DECS_NUM == 0)