Opened 10 years ago
Last modified 10 years ago
#317 new enhancement
FPU control word safe API wrappers
| Reported by: | bird | Owned by: | |
|---|---|---|---|
| Priority: | normal | Milestone: | libc-0.7 |
| Component: | libc | Version: | 0.6.5 |
| Severity: | minor | Keywords: | FPUCW FS SIGFPE |
| Cc: |
Description (last modified by )
Extend the high memory 'safe' wrappers to include FPU CW safeness.
APIs that may modify FPU CW:
- DosLoadModule?
- DosFreeModule?
- DosRead? (console)
- DosWrite? (console)
- WinCreateMsgQueue?
- ...
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Just noticed that neither DosLoadModuleEx? or DosFreeModuleEx? was making any efforts to preserve the FPU CW register. This naturally affects kLibC's dlopen/dlclose implementation. Fixed this in r3906 on both trunk and branch.