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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug dynamic-link/28453] ld.so segfaults when relocating x86
 libstdc++.so compiled with -fno-plt
Date: Wed, 17 Nov 2021 14:10:11 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28453

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
I built libstdc++ with -fno-plt and

-Wl,--as-needed,-O1,--hash-style=3Dgnu,-z,relro,-z,now

using bfd linker.  I got

Dynamic section at offset 0x203c40 contains 29 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: [libm.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [ld-linux-x86-64.s=
o.2]
 0x0000000000000001 (NEEDED)             Shared library: [libgcc_s.so.1]
 0x000000000000000e (SONAME)             Library soname: [libstdc++.so.6]
 0x000000000000000c (INIT)               0x99000
 0x000000000000000d (FINI)               0x18de44
 0x0000000000000019 (INIT_ARRAY)         0x1fb898
 0x000000000000001b (INIT_ARRAYSZ)       96 (bytes)
 0x000000000000001a (FINI_ARRAY)         0x1fb8f8
 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes)
 0x000000006ffffef5 (GNU_HASH)           0x2a8
 0x0000000000000005 (STRTAB)             0x2d120
 0x0000000000000006 (SYMTAB)             0x9000
 0x000000000000000a (STRSZ)              301565 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000003 (PLTGOT)             0x204e50
 0x0000000000000007 (RELA)               0x7a340
 0x0000000000000008 (RELASZ)             124464 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffc (VERDEF)             0x79b38
 0x000000006ffffffd (VERDEFNUM)          48
 0x0000000000000018 (BIND_NOW)=20=20=20=20=20=20=20=20=20=20=20
 0x000000006ffffffb (FLAGS_1)            Flags: NOW
 0x000000006ffffffe (VERNEED)            0x7a1d0
 0x000000006fffffff (VERNEEDNUM)         4
 0x000000006ffffff0 (VERSYM)             0x76b1e
 0x000000006ffffff9 (RELACOUNT)          892
 0x0000000000000000 (NULL)               0x0

Please pass "-Wl,--verbose" to GCC to identify the linker used.

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