Bug 245035
| Summary: | Dynamical linker fails to load libs created with older gcc, crash. | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nikolay Igotti <nikolay.igotti> | ||||
| Component: | glibc | Assignee: | Jakub Jelinek <jakub> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 7 | ||||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | 2.6-4 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2007-07-11 15:22:01 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 157482 [details]
tarball with test
This is already fixed in glibc CVS.
2007-06-18 Jakub Jelinek <jakub>
* elf/dl-addr.c (_dl_addr): Skip PT_LOAD checking if l_contiguous.
Move PT_LOAD checking to...
(_dl_addr_inside_object): ... here, new function.
* elf/dl-sym.c (do_sym): If not l_contiguous,
call _dl_addr_inside_object.
* elf/dl-iteratephdr.c (__dl_iterate_phdr): Likewise.
* dlfcn/dlinfo.c (dlinfo_doit): Likewise.
* elf/dl-open.c (dl_open_worker): Likewise.
(_dl_addr_inside_object): New function if IS_IN_rtld.
* elf/dl-load.c (_dl_map_object_from_fd): Set l_contiguous if no
holes are present or are PROT_NONE protected.
* include/link.h (struct link_map): Add l_contiguous field.
* sysdeps/generic/ldsodefs.h (_dl_addr_inside_object): New prototype.
2007-05-06 Ulrich Drepper <drepper>
[BZ #4131]
* elf/dl-addr.c (_dl_addr): Compare address with actual segment
boundaries to work around systems with overlapping binary loading.
Based on a patch by Suzuki <suzuki.com>.
Any estimations when fix will appear in FC7 updates? glibc-2.6-4 has been pushed to the Fedora 7 testing repository. If problems still persist, please make note of it in this bug report. glibc-2.6-4 has been pushed to the Fedora 7 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: RTLD linker fails to work with programs compiled on older libc releases. It prevents JDK (especially Netbeans) to work on FC7. Version-Release number of selected component (if applicable): FC7 How reproducible: Attached files with simple test. Steps to Reproduce: 1. unpack attachment 2 [details]. clean preloaded libs with 'prelink -ua' 3. make run 4. type r in gdb prompt 5. well, enjoy the crash Backtrace is like this: #0 0x00002aaaaaab41bd in _dl_lookup_symbol_x () from /lib64/ld-linux-x86-64.so.2 #1 0x00002aaaaafcf43f in do_sym () from /lib64/libc.so.6 #2 0x00002aaaaacc7104 in dlsym_doit () from /lib64/libdl.so.2 #3 0x00002aaaaaab7fc6 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2 #4 0x00002aaaaacc750d in _dlerror_run () from /lib64/libdl.so.2 #5 0x00002aaaaacc70ba in dlsym () from /lib64/libdl.so.2 #6 0x00002aaaaaae1792 in on_load () from /net/crawler/export/users/ni81036/dllib/libtest.so #7 0x0000000000400626 in test ( lib=0x7fff7f019490 "/net/crawler/export/users/ni81036/dllib/libtest.so") at dltst.c:18 #8 0x0000000000400698 in main (argc=2, argv=0x7fff7f019688) at dltst.c:31 Actual results: Crash Expected results: No crash Additional info: When all system libs get prelinked problem disappears.