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From: argante <argante@pm.me>
To: "musl@lists.openwall.com" <musl@lists.openwall.com>
Subject: static linking problem
Date: Sat, 01 Dec 2018 22:07:53 +0000	[thread overview]
Message-ID: <VC_XxHyIMal7jUmIZZn2L_YcMLtkpyQ6j3C4XdeOZzXy_GF-PMposllHBJMkyLZ21T5W-YLANppIaNGVdjV0YA==@pm.me> (raw)

Hi,

Does anyone have any idea why this is happening? The compiler (7.3.0) doesn't produce a statically linked binaries.

# cat test.c
#include <stdio.h>
int main() { printf("hello..\n"); return 0; }
# gcc -static test.c
# ldd a.out
	ldd (0x7f67f767e000)
# readelf -d a.out

Dynamic section at offset 0x1e88 contains 16 entries:
  Tag        Type                         Name/Value
 0x0000000000000010 (SYMBOLIC)           0x0
 0x000000000000000c (INIT)               0x290
 0x000000000000000d (FINI)               0x1207
 0x0000000000000004 (HASH)               0x158
 0x0000000000000005 (STRTAB)             0x180
 0x0000000000000006 (SYMTAB)             0x168
 0x000000000000000a (STRSZ)              1 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000015 (DEBUG)              0x0
 0x0000000000000003 (PLTGOT)             0x202000
 0x0000000000000007 (RELA)               0x188
 0x0000000000000008 (RELASZ)             264 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffb (FLAGS_1)            Flags: PIE
 0x000000006ffffff9 (RELACOUNT)          11
 0x0000000000000000 (NULL)               0x0

# /usr/local/musl/bin/musl-gcc -static test.c
# ldd a.out
	ldd (0x7f5a608f9000)
# gcc -static -specs=/lib/musl-gcc.specs test.c
# ldd a.out
	ldd (0x7fb6c936f000)
# gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-linux-musl/7.3.0/lto-wrapper
Target: x86_64-linux-musl
Configured with: ./configure CFLAGS='-Os -g0' CXXFLAGS= --enable-languages=c,c++ --disable-nls --disable-multilib --disable-werror --disable-libmudflap --disable-libsanitizer --disable-gnu-indirect-function --disable-libmpx --disable-libssp --disable-symver --disable-libgomp --disable-fixed-point --enable-tls --enable-deterministic-archives --enable-__cxa_atexit --enable-default-pie --build=x86_64-linux-musl
Thread model: posix
gcc version 7.3.0 (GCC)


without '-static' everything looks ok

# gcc test.c
# ldd a.out
	/lib/ld-musl-x86_64.so.1 (0x7ff0dca25000)
	libc.so => /lib/ld-musl-x86_64.so.1 (0x7ff0dca25000)


Best regards



             reply	other threads:[~2018-12-01 22:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-01 22:07 argante [this message]
2018-12-02  0:18 ` Rich Felker
2018-12-02 17:20   ` argante
2018-12-02 18:15     ` Szabolcs Nagy
2018-12-02 19:25       ` argante
2018-12-02 21:16         ` Rich Felker

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