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Message #01353
Re: [Question #234832]: compilation error
Question #234832 on rohc changed:
https://answers.launchpad.net/rohc/+question/234832
Status: Needs information => Open
manish shivare gave more information on the question:
thanks for reply,
i am providing log of both command.
manish@manish-HP-630-Notebook-PC:~$ gcc -Wl,--verbose -o test_pcap -lpcap
test_pcap.c
GNU ld (GNU Binutils for Ubuntu) 2.22.90.20120924
Supported emulations:
elf_i386
i386linux
elf32_x86_64
elf_x86_64
elf_l1om
elf_k1om
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-i386", "elf32-i386",
"elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SEARCH_DIR("/usr/i686-linux-gnu/lib32"); SEARCH_DIR("=/usr/local/lib32");
SEARCH_DIR("=/lib32"); SEARCH_DIR("=/usr/lib32");
SEARCH_DIR("=/usr/local/lib/i386-linux-gnu");
SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib/i386-linux-gnu");
SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib/i386-linux-gnu");
SEARCH_DIR("=/usr/lib");
SECTIONS
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linker won't look for a file to match a
wildcard. The wildcard also means that it
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is in. */
KEEP (*crtbegin.o(.ctors))
KEEP (*crtbegin?.o(.ctors))
/* We don't want to include the .ctor section from
the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
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==================================================
attempt to open
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crt1.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crt1.o
attempt to open
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crti.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crti.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/crtbegin.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.8/crtbegin.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libpcap.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libpcap.a failed
attempt to open
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libpcap.so succeeded
-lpcap (/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libpcap.so)
attempt to open /tmp/ccWKcRXK.o succeeded
/tmp/ccWKcRXK.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc.a succeeded
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/i686-linux-gnu/4.8/libgcc_s.so)
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libc.a failed
attempt to open
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.so succeeded
opened script file
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.so
opened script file
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.so
attempt to open /lib/i386-linux-gnu/libc.so.6 succeeded
/lib/i386-linux-gnu/libc.so.6
attempt to open /usr/lib/i386-linux-gnu/libc_nonshared.a succeeded
(/usr/lib/i386-linux-gnu/libc_nonshared.a)elf-init.oS
attempt to open /lib/i386-linux-gnu/ld-linux.so.2 succeeded
/lib/i386-linux-gnu/ld-linux.so.2
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc.a succeeded
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/i686-linux-gnu/4.8/libgcc_s.so)
attempt to open /usr/lib/gcc/i686-linux-gnu/4.8/crtend.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.8/crtend.o
attempt to open
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crtn.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/crtn.o
ld-linux.so.2 needed by /lib/i386-linux-gnu/libc.so.6
found ld-linux.so.2 at /lib/i386-linux-gnu/ld-linux.so.2
/tmp/ccWKcRXK.o: In function `main':
test_pcap.c:(.text+0x19): undefined reference to `pcap_open_dead'
test_pcap.c:(.text+0x29): undefined reference to `pcap_close'
collect2: error: ld returned 1 exit status
output of second command
manish@manish-HP-630-Notebook-PC:~$ gcc -Wall test_pcap.c -o test_pcap
-lpcap
manish@manish-HP-630-Notebook-PC:~$ file test_pcap
test_pcap: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV),
dynamically linked (uses shared libs), for GNU/Linux 2.6.24,
BuildID[sha1]=0x85c5248439361f209038fbf5686d4c536e3a3dca, not stripped
manish@manish-HP-630-Notebook-PC:~$ ldd test_pcap
linux-gate.so.1 => (0xb779b000)
libpcap.so.0.8 => /usr/lib/i386-linux-gnu/libpcap.so.0.8 (0xb7748000)
libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb759e000)
/lib/ld-linux.so.2 (0xb779c000)
second command log is compile the program properly.
any suggestion regrading this.
and you did not given any advise for my previous query about compiling
librohc.
i am waiting for your reply.
On Tue, Sep 10, 2013 at 10:31 PM, Didier Barvaux <
question234832@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Question #234832 on rohc changed:
> https://answers.launchpad.net/rohc/+question/234832
>
> Status: Open => Needs information
>
> Didier Barvaux requested more information:
> Hello,
>
> Do you mean that the command below does not work:
> $ gcc -Wl,--verbose -o test_pcap -lpcap test_pcap.c
>
> And the command below works:
> $ gcc -Wall test_pcap.c -o test_pcap -lpcap
>
> with the same content in the test_pcap.c file?
>
> Regards,
> Didier
>
> --
> You received this question notification because you are a member of ROHC
> Team, which is an answer contact for rohc.
>
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