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Re: Problem Regarding ROHC Implementation

 

Good Morning Didier,

It's possible that I've made a mistake when trying to reinstall the
application.
Here the results for your diagnostic.
Thanks,
Edvar


>> $ gcc -o rohc_hello_world -Wall -Wl,--verbose \
>>     $(pkg-config rohc --cflags --libs) rohc_hello_world.c


GNU ld (GNU Binutils for Ubuntu) 2.23.2
  Supported emulations:
   elf_x86_64
   elf32_x86_64
   elf_i386
   i386linux
   elf_l1om
   elf_k1om
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
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");
SECTIONS
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    KEEP (*(EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o )
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    /* gcc uses crtbegin.o to find the start of
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       first.  Because this is a wildcard, it
       doesn't matter if the user does not
       actually link against crtbegin.o; the
       linker won't look for a file to match a
       wildcard.  The wildcard also means that it
       doesn't matter which directory crtbegin.o
       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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    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
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    KEEP (*(.ctors))
  }
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  {
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      FIXME: Why do we need it? When there is no .bss section, we don't
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}


==================================================
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crt1.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crt1.o
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crti.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crti.o
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/crtbegin.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.7/crtbegin.o
attempt to open /usr/local/lib/librohc_decomp.so succeeded
-lrohc_decomp (/usr/local/lib/librohc_decomp.so)
attempt to open /usr/local/lib/librohc_comp.so succeeded
-lrohc_comp (/usr/local/lib/librohc_comp.so)
attempt to open /usr/local/lib/librohc_common.so succeeded
-lrohc_common (/usr/local/lib/librohc_common.so)
attempt to open /tmp/ccoTd6j4.o succeeded
/tmp/ccoTd6j4.o
attempt to open /usr/local/lib/libgcc.so failed
attempt to open /usr/local/lib/libgcc.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc.a succeeded
attempt to open /usr/local/lib/libgcc_s.so failed
attempt to open /usr/local/lib/libgcc_s.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc_s.so)
attempt to open /usr/local/lib/libc.so failed
attempt to open /usr/local/lib/libc.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libc.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libc.a failed
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/libc.so
succeeded
opened script file
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/libc.so
opened script file
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../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
attempt to open /usr/local/lib/libgcc.so failed
attempt to open /usr/local/lib/libgcc.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc.so failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc.a succeeded
attempt to open /usr/local/lib/libgcc_s.so failed
attempt to open /usr/local/lib/libgcc_s.a failed
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc_s.so)
attempt to open /usr/lib/gcc/x86_64-linux-gnu/4.7/crtend.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.7/crtend.o
attempt to open
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crtn.o succeeded
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../x86_64-linux-gnu/crtn.o
ld-linux-x86-64.so.2 needed by /lib/x86_64-linux-gnu/libc.so.6
found ld-linux-x86-64.so.2 at /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
/tmp/ccoTd6j4.o: In function `main':
rohc_hello_world.c:(.text+0x50): undefined reference to
`rohc_alloc_compressor'
rohc_hello_world.c:(.text+0x249): undefined reference to
`rohc_free_compressor'
collect2: error: ld returned 1 exit status

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