http://sourceware.org/bugzilla/show_bug.cgi?id=16546
Bug ID: 16546
Summary: powerpc __tls_get_addr should be ignored in
ppc_elf_relax_section
Product: binutils
Version: 2.14
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: wang.deqiang1 at zte dot com.cn
Created attachment 7400
--> http://sourceware.org/bugzilla/attachment.cgi?id=7400&action=edit
source code
when i static link the source in attachment with ld relax option,i get a error
like this:
~/toolchain/ppc_gcc4.5.2_glibc2.13.0_multi/bin/ppc6xx-softfloat-linux-gnu-gcc
-o test pthread_tls_relax_tst.c -lpthread --save-temps --static -Wl,--relax
/home/wangdeqiang/gcc4.5.2_glibc2.13.0/src/ppc_multi/build-binutils/ld/ld-new:
BFD (GNU Binutils) 2.24 assertion fail
/home/wangdeqiang/gcc4.5.2_glibc2.13.0/src/ppc_multi/binutils-2.21/bfd/elf32-ppc.c:7731
when i look into the code , i find ppc_elf_relax_section relax the call to
__tls_get_addr, and modify the relocation of tls access in global-dynamic and
local-dynamic mode , in fuction ppc_elf_relocate_section when we do tls
optimize to change the global-dynamic mode or local-dynamic mode to
initial-exec mode, we need the relocation type information, but it is changed
in ppc_elf_relax_section, so we got this error.
normally powerpc ld always do tls optimize, so i think we should just ignore
the tls_get_addr symbol in ppc_elf_relax_section .
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