https://sourceware.org/bugzilla/show_bug.cgi?id=33130
Bug ID: 33130
Summary: GNU2 TLS binary may not work on Linux
Product: binutils
Version: 2.45 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
CC: fweimer at redhat dot com
Depends on: 33129, 31372
Target Milestone: ---
Target: x86-64
GNU2 TLS binary may not work on Linux without the GNU2 TLS run-time fix for:
https://sourceware.org/bugzilla/show_bug.cgi?id=31372
There is a proposal to add a glibc version tag, GLIBC_ABI_GNU2_TLS, to indicate
that glibc has the working GNU2 TLS run-time:
https://sourceware.org/bugzilla/show_bug.cgi?id=33129
Linker should add GLIBC_ABI_GNU2_TLS version dependency on output when linking
against glibc if inputs have R_X86_64_TLSDESC_CALL relocations so that the
output
will fail to run with glibc which doesn't have the GLIBC_ABI_GNU2_TLS version.
Referenced Bugs:
https://sourceware.org/bugzilla/show_bug.cgi?id=31372
[Bug 31372] _dl_tlsdesc_dynamic doesn't preserve all caller-saved registers
https://sourceware.org/bugzilla/show_bug.cgi?id=33129
[Bug 33129] Need a version tag to indicate that glibc has working GNU2 TLS
support
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