static linking to an older glibc
Hi, all:
I don't know if I misunderstand the purpose of this mail-list. But I
don't know somewhere else to ask.
Recently, I compiled a program on a Debian 5.0.2 system with default
configurations.
Then I got 'FATAL: kernel too old' message when I tried the binary
file on a SLES9 system with the kernel 2.6.5.
'file foo' said: 'foo: ELF 32-bit LSB executable, Intel 80386, version
1 (SYSV), statically linked, for GNU/Linux 2.6.8, not stripped'
So I guessed the problem might be that GLIBC is not old enough ( with
--enable-kernel=2.6.8 ).
Then I downloaded libc6-dev_2.3.6.ds1-13etch9+b1_i386.deb, and
extracted libc.a from it. After that, I compiled again:
$ gcc -Wall -Wextra -pedantic -O0 -ggdb -std=gnu99 -D_XOPEN_SOURCE=500
-c -o foo.o foo.c
$ gcc -Wall -Wextra -pedantic -O0 -ggdb -std=gnu99 -c -o main.o main.c
$ gcc -Wall -Wextra -pedantic -O0 -ggdb -std=gnu99 -static -nostdlib
-o foo main.o foo.o old-libc/libc.a `gcc -print-libgcc-file-name`
I got '/usr/bin/ld: warning: cannot find entry symbol _start;
defaulting to 00000000080480a0' during compilation.
_Q1_: is it safe to ignore this warning, since the program looks good now?
_Q2_: what can I do to eliminate this warning?
Then I tried exact the same steps on another Debian 5.0.2 amd64 system.
Of course, I replaced libc6-dev_2.3.6.ds1-13etch9+b1_i386.deb with
libc6-dev_2.3.6.ds1-13etch9_amd64.deb.
_Q3_: how can I get rid of the errors below.
Thanks in advance.
old-libc/libc.a(ioputs.o): In function `puts':
(.text+0x17b): undefined reference to `_Unwind_Resume'
old-libc/libc.a(ioputs.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(putchar.o):(.eh_frame+0x12): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(iofclose.o): In function `fclose':
(.text+0x1f6): undefined reference to `_Unwind_Resume'
old-libc/libc.a(iofclose.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(iofputs.o): In function `fputs':
(.text+0x135): undefined reference to `_Unwind_Resume'
old-libc/libc.a(iofputs.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(iofwrite.o): In function `fwrite':
(.text+0x15e): undefined reference to `_Unwind_Resume'
old-libc/libc.a(iofwrite.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(wfileops.o): In function `_IO_wfile_underflow':
(.text+0x1193): undefined reference to `_Unwind_Resume'
old-libc/libc.a(wfileops.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(fileops.o): In function `_IO_file_underflow':
(.text+0x10ee): undefined reference to `_Unwind_Resume'
old-libc/libc.a(fileops.o): In function `_IO_file_fopen':
(.text+0x196e): undefined reference to `_Unwind_Resume'
old-libc/libc.a(fileops.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(syslog.o): In function `openlog':
(.text+0x2d7): undefined reference to `_Unwind_Resume'
old-libc/libc.a(syslog.o): In function `vsyslog':
(.text+0x814): undefined reference to `_Unwind_Resume'
old-libc/libc.a(syslog.o): In function `vsyslog':
(.text+0x82c): undefined reference to `_Unwind_Resume'
old-libc/libc.a(syslog.o): In function `closelog':
(.text+0x942): undefined reference to `_Unwind_Resume'
old-libc/libc.a(syslog.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(iofflush.o): In function `fflush':
(.text+0xf0): undefined reference to `_Unwind_Resume'
old-libc/libc.a(iofflush.o):(.eh_frame+0x13): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(ioftell.o):(.eh_frame+0x12): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(iogetdelim.o):(.eh_frame+0x12): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(ioseekoff.o):(.eh_frame+0x12): undefined reference to
`__gcc_personality_v0'
old-libc/libc.a(fseek.o):(.eh_frame+0x12): undefined reference to
`__gcc_personality_v0'
collect2: ld returned 1 exit status
--
Regards.
-Tian
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