Bug 1624776
| Summary: | binutils: ld removes some R_X86_64_JUMP_SLOT relocations | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Florian Weimer <fweimer> |
| Component: | binutils | Assignee: | Nick Clifton <nickc> |
| Status: | CLOSED ERRATA | QA Contact: | Miloš Prchlík <mprchlik> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 7.5 | CC: | codonell, law, mcermak, mprchlik, ohudlick |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | binutils-2.27-38.base.el7 | Doc Type: | No Doc Update |
| Doc Text: |
undefined
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-08-06 12:41:33 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1655768 | ||
I forgot to mention that this issue does not seem to be present in binutils-2.31.1-12.fc30.x86_64. Fixed in binutils-2.27-38.base.el7 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2019:2075 |
Consider this assembler source file (reloc.s): .text mov malloc@GOTPCREL(%rip), %rax jmp malloc@plt Assemble and link it into a shared object: as -o reloc.o reloc.s ld -o reloc.so -shared reloc.o binutils-2.23.52.0.1-16.el7.x86_64 generates these relocations: Relocation section '.rela.dyn' at offset 0x200 contains 1 entries: Offset Info Type Symbol's Value Symbol's Name + Addend 0000000000200ff8 0000000200000006 R_X86_64_GLOB_DAT 0000000000000000 malloc + 0 Relocation section '.rela.plt' at offset 0x218 contains 1 entries: Offset Info Type Symbol's Value Symbol's Name + Addend 0000000000201018 0000000200000007 R_X86_64_JUMP_SLOT 0000000000000000 malloc + 0 But binutils-2.27-27.base.el7.x86_64 generates these relocations: Relocation section '.rela.dyn' at offset 0x1e0 contains 1 entries: Offset Info Type Symbol's Value Symbol's Name + Addend 0000000000200ff8 0000000100000006 R_X86_64_GLOB_DAT 0000000000000000 malloc + 0 This is a regression because it prevents PLT enter/exit hooks from working for malloc@plt.