Opened 13 years ago
Last modified 8 years ago
#339 closed defect
Dynamic linker needs full TLS support — at Version 1
| Reported by: | Jiri Svoboda | Owned by: | Jiri Svoboda |
|---|---|---|---|
| Priority: | major | Milestone: | 0.7.0 |
| Component: | helenos/lib/c | Version: | |
| Keywords: | Cc: | ||
| Blocker for: | Depends on: | ||
| See also: |
Description (last modified by )
Currently the dynamic linker can only handle thread-local variables that are static, because it does cannot resolve module numbers in the TLS runtime functions.
Also, thread-local variables can currently only be in one runtime module (the C library) because of the way global symbols are used to measure tdata and tbss sections.
Change History (1)
comment:1 by , 13 years ago
| Description: | modified (diff) |
|---|---|
| Owner: | changed from to |
| Status: | new → assigned |
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There is a special TLS program header that describes the thread-local data section. For this to work tbss should follow tdata (there can be alignment padding between them). From the filesize and memsize of this segment the dynamic loader can derive the beginning and size of tdata and tbss for each module.