* [Ada] Fix possible uninitialized ATCB component use
@ 2020-12-16 13:15 Pierre-Marie de Rodat
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From: Pierre-Marie de Rodat @ 2020-12-16 13:15 UTC (permalink / raw)
To: gcc-patches; +Cc: Philippe Gil
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When System.Memory implementation is using Debug_Pools, Common ATCB's
uninitialized Global_Task_Lock_Nesting component may be used.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* libgnarl/s-tporft.adb (Register_Foreign_Thread): Set
Global_Task_Lock_Nesting before using allocator.
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diff --git a/gcc/ada/libgnarl/s-tporft.adb b/gcc/ada/libgnarl/s-tporft.adb
--- a/gcc/ada/libgnarl/s-tporft.adb
+++ b/gcc/ada/libgnarl/s-tporft.adb
@@ -53,6 +53,7 @@ begin
Local_ATCB.Common.LL.Thread := Thread;
Local_ATCB.Common.Current_Priority := System.Priority'First;
+ Local_ATCB.Common.Global_Task_Lock_Nesting := 0;
Specific.Set (Local_ATCB'Unchecked_Access);
-- It is now safe to use an allocator
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2020-12-16 13:15 [Ada] Fix possible uninitialized ATCB component use Pierre-Marie de Rodat
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