Discussion:
Link Issue: /usr/bin/ld: cannot find : No such file or directory
Jeffrey Walton
2012-08-15 00:57:43 UTC
Permalink
Hi All,

I'm getting an unexpected complaint from LD that it can't find
something. I'm not sure what LD cannot find, even after passing
--verbose.

$ g++ -g3 -O0 sample.cpp -o sample.exe -Wall -Wextra -Wconversion
-fPIE -pie -fstack-protector-all -Wl,-z,noexecstack -Wl,-z,noexecheap
-Wl,-z,relro, -Wl,-z,now
/usr/bin/ld: warning: -z noexecheap ignored.
/usr/bin/ld: cannot find : No such file or directory
collect2: ld returned 1 exit status

Any help would be appreciated.

Jeff

$ uname -a
Linux vm-ubuntu-12-x64 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27
17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
$ g++ --version
g++ (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ ld --version
GNU ld (GNU Binutils for Ubuntu) 2.22
Copyright 2011 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.

$ g++ -g3 -O0 sample.cpp -o sample.exe -Wall -Wextra -Wconversion
-fPIE -pie -fstack-protector-all -Wl,--verbose -Wl,-z,noexecstack
-Wl,-z,noexecheap -Wl,-z,relro, -Wl,-z,now
GNU ld (GNU Binutils for Ubuntu) 2.22
Supported emulations:
elf_x86_64
elf32_x86_64
elf_i386
i386linux
elf_l1om
elf_k1om
using internal linker script:
==================================================
/* Script for -pie -z combreloc -z now -z relro: position independent
executable, combine & sort relocs */
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
"elf64-x86-64")
OUTPUT_ARCH(i386:x86-64)
ENTRY(_start)
SEARCH_DIR("/usr/x86_64-linux-gnu/lib64");
SEARCH_DIR("=/usr/local/lib/x86_64-linux-gnu");
SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib/x86_64-linux-gnu");
SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/lib/x86_64-linux-gnu");
SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib");
SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
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==================================================
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/Scrt1.o
succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/Scrt1.o
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/crti.o
succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/crti.o
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/crtbeginS.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.6/crtbeginS.o
attempt to open /tmp/ccOLcDO2.o succeeded
/tmp/ccOLcDO2.o
attempt to open failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libstdc++.so succeeded
-lstdc++ (/usr/lib/gcc/x86_64-linux-gnu/4.6/libstdc++.so)
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libm.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libm.a failed
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libm.so
succeeded
-lm (/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libm.so)
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/x86_64-linux-gnu/4.6/libgcc_s.so)
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libgcc.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libgcc.a succeeded
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libc.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.6/libc.a failed
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libc.so
succeeded
opened script file
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libc.so
opened script file
/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libc.so
attempt to open /lib/x86_64-linux-gnu/libc.so.6 succeeded
/lib/x86_64-linux-gnu/libc.so.6
attempt to open /usr/lib/x86_64-linux-gnu/libc_nonshared.a succeeded
(/usr/lib/x86_64-linux-gnu/libc_nonshared.a)elf-init.oS
attempt to open /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 succeeded
/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
/usr/bin/ld: warning: -z noexecheap ignored.
/usr/bin/ld: cannot find : No such file or directory
collect2: ld returned 1 exit status
$
Alan Modra
2012-08-15 01:18:13 UTC
Permalink
Post by Jeffrey Walton
Hi All,
I'm getting an unexpected complaint from LD that it can't find
something. I'm not sure what LD cannot find, even after passing
--verbose.
$ g++ -g3 -O0 sample.cpp -o sample.exe -Wall -Wextra -Wconversion
-fPIE -pie -fstack-protector-all -Wl,-z,noexecstack -Wl,-z,noexecheap
-Wl,-z,relro, -Wl,-z,now
/usr/bin/ld: warning: -z noexecheap ignored.
/usr/bin/ld: cannot find : No such file or directory
collect2: ld returned 1 exit status
Try adding -Wl,-v to see how g++ is invoking ld. You might need to
dump that output to a file then inspect with a hex editor to find some
weird filename.
--
Alan Modra
Australia Development Lab, IBM
Jeffrey Walton
2012-08-15 02:26:06 UTC
Permalink
Post by Alan Modra
Post by Jeffrey Walton
Hi All,
I'm getting an unexpected complaint from LD that it can't find
something. I'm not sure what LD cannot find, even after passing
--verbose.
$ g++ -g3 -O0 sample.cpp -o sample.exe -Wall -Wextra -Wconversion
-fPIE -pie -fstack-protector-all -Wl,-z,noexecstack -Wl,-z,noexecheap
-Wl,-z,relro, -Wl,-z,now
/usr/bin/ld: warning: -z noexecheap ignored.
/usr/bin/ld: cannot find : No such file or directory
collect2: ld returned 1 exit status
Try adding -Wl,-v to see how g++ is invoking ld. You might need to
dump that output to a file then inspect with a hex editor to find some
weird filename.
Post by Jeffrey Walton
-Wl,-z,relro, -Wl,-z,now
Thanks for the help.

Jeff

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