Date: Sun, 17 Dec 2006 18:08:11 +0300 From: Alexander Shiryaev <coumarin@gmail.com> To: Dan Nelson <dnelson@allantgroup.com> Cc: freebsd-hackers@freebsd.org Subject: Re: ICC 9 in FreeBSD 6 Message-ID: <45855D5B.6060001@gmail.com> In-Reply-To: <20061217034557.GB43992@dan.emsphone.com> References: <45847990.8060605@gmail.com> <20061217034557.GB43992@dan.emsphone.com>
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Dan Nelson wrote:
> In the last episode (Dec 17), Alexander Shiryaev said:
>> I'm trying to hack ICC 9.1.045 ia32 (using lang/icc port for ICC 8). I
>> can't compile hello world ;-(
>>
>> icc -c main.c
>> icc -o main main.o
>> IPO link: can not find -ldl
>> iccbin: error: problem during multi-file optimization compilation (code 1)
>> *** Error code 1
>
> Ouch. A quick ktrace indicates that message is generated by mcpcom,
> which might mean that icc's ipo feature links the final binary itself
> without calling ldwrapper, and that means you're not going to get a
> FreeBSD binary out of the link stage. If there's an option to disable
> ipo, try adding that to your icc.cfg file as a quick fix.
>
> Since it looks like mcpcom just gets its instructions from its parent
> iccbin through a temp file, it should be possible to write an mcpcom
> wrapper that opens the tempfile, rewrites its contents (in a manner
> similar to what ldwrapper does for the ld commandline), then launches
> the real mcpcom binary.
>
It works!
I attached quickly-written mcpcom wrapper.
Move /usr/local/intel_cc_80/bin/mcpcom to
/usr/local/intel_cc_80/bin/mcpcom.x and then copy attached mcpcom to
/usr/local/intel_cc_80/bin/
$ make CC=icc CFLAGS=
icc -c main.c
icc -o main main.o
mcpcom input: -mIPOPT_cmdline_link="/usr/lib/crt1.o" "/usr/lib/crti.o"
"/usr/local/intel_cc_80/lib/crtbegin.o" "-dynamic-linker"
"/lib/ld-linux.so.2" "-m" "elf_i386" "-o" "main" "main.o"
"-L/usr/local/intel_cc_80/lib" "-L/usr/lib" "-Bstatic" "-limf"
"-Bdynamic" "-lm" "-Bstatic" "-lipgo" "-Bdynamic" "-Bstatic" "-lirc"
"-Bdynamic" "-lc" "-Bstatic" "-lirc_s" "-Bdynamic" "-ldl" "-lc"
"/usr/local/intel_cc_80/lib/crtend.o" "/usr/lib/crtn.o"
mcpcom output: -mIPOPT_cmdline_link="/usr/lib/crt1.o" "/usr/lib/crti.o"
"/usr/local/intel_cc_80/lib/crtbegin.o" "-dynamic-linker"
"/lib/ld-linux.so.2" "-m" "elf_i386" "-o" "main" "main.o"
"-L/usr/local/intel_cc_80/lib" "-L/usr/lib" "-Bstatic" "-limf"
"-Bdynamic" "-lm" "-Bstatic" "-lipgo" "-Bdynamic" "-Bstatic" "-lirc"
"-Bdynamic" "-lc" "-Bstatic" "-lirc_s" "-Bdynamic" "-lc"
"/usr/local/intel_cc_80/lib/crtend.o" "/usr/lib/crtn.o"
ldwrapper input: /usr/local/intel_cc_80/bin/ldwrapper/ld /usr/lib/crt1.o
/usr/lib/crti.o /usr/local/intel_cc_80/lib/crtbegin.o -dynamic-linker
/lib/ld-linux.so.2 -m elf_i386 -o main main.o
-L/usr/local/intel_cc_80/lib -L/usr/lib -Bstatic -limf -Bdynamic -lm
-Bstatic -lipgo -Bdynamic -Bstatic -lirc -Bdynamic -lc -Bstatic -lirc_s
-Bdynamic -ldl -lc /usr/local/intel_cc_80/lib/crtend.o /usr/lib/crtn.o
ldwrapper output: /usr/local/intel_cc_80/bin/ldwrapper/ld
-melf_i386_fbsd /usr/lib/crt1.o /usr/lib/crti.o
/usr/local/intel_cc_80/lib/crtbegin.o -dynamic-linker
/libexec/ld-elf.so.1 -o main main.o -L/usr/local/intel_cc_80/lib
-L/usr/libexec/elf -L/usr/libexec -L/usr/lib -Bstatic -limf -Bdynamic
-lm -Bstatic -lipgo -Bdynamic -Bstatic -lirc -Bdynamic -Bstatic
-liccfbsd -Bdynamic -lc -Bstatic -lirc_s -Bdynamic -Bstatic -liccfbsd
-Bdynamic -lc /usr/local/intel_cc_80/lib/crtend.o /usr/lib/crtn.o
It means ldwrapper works after mcpcom.
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filename="mcpcom"
#! /usr/bin/env python
import os, sys, re, string
if __name__ == '__main__':
assert len(sys.argv) == 2
filename = sys.argv[1][1:]
# read all lines from file
fh = open(filename, 'r')
lines = fh.readlines()
fh.close()
out_lines = []
for line in lines:
r = re.match('^-mIPOPT_cmdline_link=(.*)', line)
if r:
print "mcpcom input: %s" % line,
line = string.replace(line, '"-ldl"', '')
print "mcpcom output: %s" % line,
out_lines.append(line)
# update file
fh = open(filename, 'w')
for line in out_lines:
fh.write(line)
fh.close()
os.execvp("mcpcom.x", sys.argv)
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