Opened on 10/19/07 at 11:56:23
Closed on 08/04/08 at 19:01:38
#1264 closed enhancement (invalid)
Bad initialization of FPU null context buffer in cpu_asm.S
Reported by: | jacques.seronievivien | Owned by: | Joel Sherrill |
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Priority: | lowest | Milestone: | 4.9 |
Component: | score | Version: | 4.6 |
Severity: | minor | Keywords: | |
Cc: | Blocked By: | ||
Blocking: |
Description
Routine _CPU_Context_initialize_fp defined in cpu_asm.S file should initialize all FPU register context to 0.It loops on a std %g0, [%o0] instruction (which copy values of g0 and g1 registers to [%o0]) whereas g1 value is not forced to 0 before.
This routine is called by _CPU_Initialize routine to initialize CPU_Null_fp_context buffer to 0. It appears during execution that this buffer contains some non nul datas (corresponding to g1 values).
Change History (2)
comment:1 Changed on 10/19/07 at 12:22:20 by Joel Sherrill
Priority: | normal → lowest |
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Severity: | normal → enhancement |
comment:2 Changed on 08/04/08 at 19:01:38 by Joel Sherrill
Resolution: | → invalid |
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Status: | new → closed |
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No comment. Assuming last reference to C99 was sufficient.