Bug 1289812
| Summary: | ld.so fails to load go binary when using LD_BIND_NOW=1 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Carlos O'Donell <codonell> |
| Component: | glibc | Assignee: | Carlos O'Donell <codonell> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 23 | CC: | arjun.is, codonell, fweimer, jakub, law, mfabian, pfrankli, siddhesh |
| Target Milestone: | --- | Keywords: | Patch |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | glibc-2.23 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-11-24 14:34:07 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: | |||
The code is question is generic, so marking "All" hardware. Why change glibc? IMNSHO that is clearly a bug in the tool that generated the binary/library. (In reply to Jakub Jelinek from comment #2) > Why change glibc? IMNSHO that is clearly a bug in the tool that generated > the binary/library. There is a pre-existing comment in the glibc source code that this layout has to be supported: /* On some machines, notably SPARC, DT_REL* includes DT_JMPREL in its range. Note that according to the ELF spec, this is completely legal! We are guarenteed that we have one of three situations. Either DT_JMPREL comes immediately after DT_REL*, or there is overlap and DT_JMPREL consumes precisely the very end of the DT_REL*, or DT_JMPREL and DT_REL* are completely separate and there is a gap between them. */ This message is a reminder that Fedora 23 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 23. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '23'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 23 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. This was fixed in Fedora 24. |
Create a go program that uses cgo to reference external API's like those core glibc API's which in turn use NSS. This causes the the go runtime to create a real dynamic binary, but this binary has a gap between .rela and .rela.plt, which F23's version of ld.so does not support. cat >> print-user-home.go <<EOF package main import "fmt" import "os/user" import "log" func main() { myself, err := user.Current() if (err != nil) { log.Fatal (err) } fmt.Println(myself.HomeDir) } EOF go build print-user-home.go ./print-user-home /home/carlos ldd print-user-home linux-vdso.so.1 (0x00007ffdac7f4000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fdf4f197000) libc.so.6 => /lib64/libc.so.6 (0x00007fdf4edd6000) /lib64/ld-linux-x86-64.so.2 (0x0000555c63c7d000) LD_BIND_NOW=1 ./print-user-home ./print-user-home: error while loading shared libraries: unexpected reloc type 0x005a4018 This is upstream bug 14341, adding here for posterity, but without any real user reports we'll park it here for documentation purposes. From fa19d5c48a6b36518ce68412e3bdde6bfa8aa4a6 Mon Sep 17 00:00:00 2001 From: Petar Jovanovic <petar.jovanovic> Date: Wed, 20 Aug 2014 00:50:54 +0200 Subject: [PATCH] Fix dynamic linker issue with bind-now Fix the bind-now case when DT_REL and DT_JMPREL sections are separate and there is a gap between them. [BZ #14341] * elf/dynamic-link.h (elf_machine_lazy_rel): Properly handle the case when there is a gap between DT_REL and DT_JMPREL sections. * sysdeps/x86_64/Makefile (tests): Add tst-split-dynreloc. (LDFLAGS-tst-split-dynreloc): New. (tst-split-dynreloc-ENV): Likewise. * sysdeps/x86_64/tst-split-dynreloc.c: New file. * sysdeps/x86_64/tst-split-dynreloc.lds: Likewise.