Bug#882874: glibc 2.25 FTBFS on ia64
Source: glibc
Version: 2.25
Severity: normal
Dear Maintainer,
When trying to build glibc 2.25 under ia64, ld.so does not build properly,
and produces a segmentation fault immediately upon execution.
The following backtrace is common to every combination of toolchain part and compilation flag I've tried:
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
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Reading symbols from ./ld.so...done.
(gdb) run
Starting program: /root/sid/glibc-2.25/build-tree/ia64-libc/elf/ld.so
Failed to read a valid object file image from memory.
Program received signal SIGSEGV, Segmentation fault.
make_fdesc (gp=2305843043573611080, ip=<optimized out>) at dl-fptr.c:127
127 old = root->first_unused;
(gdb) bt
#0 make_fdesc (gp=2305843043573611080, ip=<optimized out>) at dl-fptr.c:127
#1 _dl_make_fptr (map=0x20000008000553a8 <_rtld_local+2448>, sym=0x2000000800000540, ip=2305843043573579456) at dl-fptr.c:243
#2 0x2000000800004440 in elf_machine_rela (skip_ifunc=0, reloc_addr_arg=0x2000000800050640 <_rtld_local_ro+208>,
version=<optimized out>, sym=0x2000000800000540, reloc=0x2000000800000f68, map=0x20000008000553a8 <_rtld_local+2448>)
at ../sysdeps/ia64/dl-machine.h:432
#3 elf_dynamic_do_Rela (skip_ifunc=0, lazy=0, nrelative=<optimized out>, relsize=<optimized out>, reladdr=<optimized out>,
map=0x20000008000553a8 <_rtld_local+2448>) at do-rel.h:137
#4 _dl_start (arg=0x60000fffffffb670) at rtld.c:502
#5 0x2000000800001990 in _start ()
(gdb)
It appears that local->root is set to NULL at execution time, even before any instructions are set.
I have tried binutils (2.25, 2.28, 2.29.1) and gcc 6.4.0 and 7.2.0.
-- System Information:
Debian Release: buster/sid
Architecture: ia64
Kernel: Linux 3.2.0-4-mckinley (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
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