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RE: crossgcc hosted on win2k CygWin target=linux

From: Dan Kegel <dkegel at ixiacom dot com>
To: "'ptschneider at atlantech dot net '" <ptschneider at atlantech dot net>
Cc: "'crossgcc at sources dot redhat dot com '" <crossgcc at sources dot redhat dot com>
Date: Thu, 12 Jun 2003 09:36:56 -0700
Subject: RE: crossgcc hosted on win2k CygWin target=linux

Thanks!  I haven't had a chance to try running the crosstool
build script on cygwin myself yet, but I appreciate the
heads-up.  None of the errors look particularly familiar.

For what it's worth, here are the two patches I think
I needed to build gcc-3.0.2 on cygwin:

http://gcc.gnu.org/ml/gcc-patches/2001-03/msg01388.html

plus a patch to autoconf2.13:

--- /usr/share/autoconf2.13/acgeneral.m4.orig   Thu Aug 22 18:26:58 2002
+++ acgeneral.m4        Thu Aug 22 19:03:12 2002
@@ -1510,11 +1510,13 @@
 EOF
 if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
   [$2]=yes
-  # If we can't run a trivial program, we are probably using a cross
compiler.
-  if (./conftest; exit) 2>/dev/null; then
-    [$3]=no
-  else
-    [$3]=yes
+  if test "$[$3]" != yes; then
+    # If we can't run a trivial program, we are probably using a cross
compiler.
+    if (./conftest; exit) 2>/dev/null; then
+      [$3]=no
+    else
+      [$3]=yes
+    fi
   fi
 else
   echo "configure: failed program was:" >&AC_FD_CC

and, having patched autoconf2.13, I then had to regenerate
libiberty/configure.
I'll attach the resulting configure script.
I then had to do
    echo "ac_cv_prog_cc_cross=yes" > powerpc-linux/config.cache
in build-gcc before running gcc's configure.

I dunno if any of that will be needed in more recent versions.
- Dan


-----Original Message-----
From: xxx
To: Dan Kegel
Sent: 12.06.2003 05:30
Subject: Re: crossgcc hosted on win2k CygWin target=linux

 I did 3 test runs of the demo script on a Pentium WinXP
box loaded with the latest Cygwin distro. The three
configurations were:
    [A] i686.dat + gcc3.3-glibc2.3.2.dat
    [B] i686.dat + gcc2.95.3-glibc2.2.2.dat
    [C] i686.dat + gcc3.2.3-glibc2.2.5.dat


In each case, I emptied out the tarballs directory so that
it would be a fresh/complete run of the script. {May sound
silly, but I had other reasons for this.}

 All three of the builds ended with different errors, which
I'll try to describe below. In summary:
    [A] : build-glibc-headers: mv fail on sysd_syscallsT
    [B] : build-glibc linker fail (no open, close, etc)
    [C] : build-gcc-core link fail (the mempcpy err)

 I've not identified the causes of any of these errors, nor
have I tried any fixes; at this point, I'm just reporting
them. If
you have suggestions on things I should investigate/try,
let me know; I'll give it a whirl.

*** i686.dat + gcc3.3-glibc2.3.2.dat    ***

This one looks like it made it the furthest before it died.
the build directories for binutils, glibc-headers,
gcc-core, and glibc were present. Looks like it died in the
glibc-headers build. Tail of the output was:

 echo 'sysd-rules-done = t') >
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i6
86-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/sysd-rulesT
mv -f
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-
3.3-glibc-2.3.2/build-glibc-headers/sysd-rulesT
/cygdrive/c/cygwin/usr/src/cross
tool-0.7/build/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-he
aders/sy
sd-rules
for dir in
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu
/gcc-3.3-glibc-2.3.2/build-glibc-headers sysdeps/i386/elf
sysdeps/unix/sysv/linu
x/i386 sysdeps/unix/sysv/linux sysdeps/gnu
sysdeps/unix/common sysdeps/unix/mman
 sysdeps/unix/inet sysdeps/unix/sysv/i386 sysdeps/unix/sysv
sysdeps/unix/i386 sy
sdeps/unix sysdeps/posix sysdeps/i386/i686/fpu
sysdeps/i386/i686 sysdeps/i386/i4
86 sysdeps/i386/fpu sysdeps/i386 sysdeps/wordsize-32
sysdeps/ieee754/ldbl-96 sys
deps/ieee754/dbl-64 sysdeps/ieee754/flt-32 sysdeps/ieee754
sysdeps/generic/elf s
ysdeps/generic; do \
  test -f $dir/syscalls.list && \
  { /bin/sh.exe sysdeps/unix/make-syscalls.sh $dir || exit
1; }; \
  test $dir = sysdeps/unix && break; \
done >
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c
-3.3-glibc-2.3.2/build-glibc-headers/sysd-syscallsT
mv -f
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-
3.3-glibc-2.3.2/build-glibc-headers/sysd-syscallsT
/cygdrive/c/cygwin/usr/src/cr
osstool-0.7/build/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc
-headers
/sysd-syscalls
mv: cannot stat
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-lin
ux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/sysd-syscallsT':
No such file or directory
make[1]: ***
[/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-
gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/sysd-syscalls]
Error 1
make[1]: Leaving directory
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.3-glibc-2.3.2/glibc-2.3.2'
make: *** [sysdeps/gnu/errlist.c] Error 2

 Now, when I looked, there was a sysd-syscalls file already
in the directory (163 kB), and (as reported) no
sysd-syscallsT file. So, I tried just going up into that
build-glibc-headers and executing 'make' again to see if it
would finish sucessfully. It did not, ending with this:

../sysdeps/i386/fpu/s_copysign.S: Assembler messages:
../sysdeps/i386/fpu/s_copysign.S:10: Warning: .type
pseudo-op used outside of .d
ef/.endef ignored.
../sysdeps/i386/fpu/s_copysign.S:10: Warning: rest of line
ignored; first ignore
d character is `_'
../sysdeps/i386/fpu/s_copysign.S:19: Warning: .size
pseudo-op used outside of .d
ef/.endef ignored.
../sysdeps/i386/fpu/s_copysign.S:19: Warning: rest of line
ignored; first ignore
d character is `_'
gcc ../sysdeps/ieee754/dbl-64/s_modf.c -c -std=gnu99 -O2
-Wall -Winline -Wstrict
-prototypes -Wwrite-strings -g   -fPIC   -Wno-uninitialized
-D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_INLINES -I../include -I.
-I/cygdrive/c/cygwin/usr/src/cro
sstool-0.7/build/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-
headers/
math -I.. -I../libio
 -I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unkn
own-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers
-I../sysdeps/i386/elf -I..
/sysdeps/unix/sysv/linux/i386 -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I..
/sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/
unix/sysv/i386 -I../sysdeps/unix/sysv
-I../sysdeps/unix/i386 -I../sysdeps/unix -
I../sysdeps/posix -I../sysdeps/i386/i686/fpu
-I../sysdeps/i386/i686 -I../sysdeps
/i386/i486 -I../sysdeps/i386/fpu -I../sysdeps/i386
-I../sysdeps/wordsize-32 -I..
/sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/flt-32
 -I../sysdeps/ieee754 -I../sysdeps/generic/elf
-I../sysdeps/generic  -nostdinc -
isystem /usr/lib/gcc-lib/i686-pc-cygwin/3.2/include
-isystem /cygdrive/c/cygwin/
usr/src/crosstool-0.7/result/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/
i686-unk
nown-linux-gnu/include  -include ../include/libc-symbols.h
 -DPIC -DSHARED     -
o
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-3.3-
glibc-2.3.2/build-glibc-headers/math/s_modf.os
cc1: warning: -fPIC ignored for target (all code is
position independent)
../sysdeps/ieee754/dbl-64/s_modf.c:81: warning: weak
declaration of `modf' not s
upported
gcc ../sysdeps/i386/fpu/s_scalbn.S -c -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH
_INLINES -I../include -I.
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/math
-I.. -I../libio
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/
gcc-3.3-
glibc-2.3.2/build-glibc-headers -I../sysdeps/i386/elf
-I../sysdeps/unix/sysv/lin
ux/i386 -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu
-I../sysdeps/unix/common -
I../sysdeps/unix/mman -I../sysdeps/unix/inet
-I../sysdeps/unix/sysv/i386 -I../sy
sdeps/unix/sysv -I../sysdeps/unix/i386 -I../sysdeps/unix
-I../sysdeps/posix -I..
/sysdeps/i386/i686/fpu -I../sysdeps/i386/i686
-I../sysdeps/i386/i486 -I../sysdep
s/i386/fpu -I../sysdeps/i386 -I../sysdeps/wordsize-32
-I../sysdeps/ieee754/ldbl-
96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32
-I../sysdeps/ieee754
-I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc
-isystem /usr/lib/gcc-l
ib/i686-pc-cygwin/3.2/include -isystem
/cygdrive/c/cygwin/usr/src/crosstool-0.7/
result/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/i686-unknown-linux-gnu
/include
  -include ../include/libc-symbols.h  -DPIC -DSHARED
    -DASSEMBLER  -DGAS_SYNT
AX  -o
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c
-3.3-glibc-2.3.2/build-glibc-headers/math/s_scalbn.os
../sysdeps/i386/fpu/s_scalbn.S: Assembler messages:
../sysdeps/i386/fpu/s_scalbn.S:10: Warning: .type pseudo-op
used outside of .def
/.endef ignored.
../sysdeps/i386/fpu/s_scalbn.S:10: Warning: rest of line
ignored; first ignored
character is `_'
../sysdeps/i386/fpu/s_scalbn.S:16: Warning: .size pseudo-op
used outside of .def
/.endef ignored.
../sysdeps/i386/fpu/s_scalbn.S:16: Warning: rest of line
ignored; first ignored
character is `_'
gcc ../sysdeps/i386/fpu/s_frexp.S -c -D__NO_MATH_INLINES
-D__LIBC_INTERNAL_MATH_
INLINES -I../include -I.
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-u
nknown-linux-gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/math
-I.. -I../libio  -
I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/g
cc-3.3-g
libc-2.3.2/build-glibc-headers -I../sysdeps/i386/elf
-I../sysdeps/unix/sysv/linu
x/i386 -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu
-I../sysdeps/unix/common -I
../sysdeps/unix/mman -I../sysdeps/unix/inet
-I../sysdeps/unix/sysv/i386 -I../sys
deps/unix/sysv -I../sysdeps/unix/i386 -I../sysdeps/unix
-I../sysdeps/posix -I../
sysdeps/i386/i686/fpu -I../sysdeps/i386/i686
-I../sysdeps/i386/i486 -I../sysdeps
/i386/fpu -I../sysdeps/i386 -I../sysdeps/wordsize-32
-I../sysdeps/ieee754/ldbl-9
6 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32
-I../sysdeps/ieee754 -
I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc
-isystem /usr/lib/gcc-li
b/i686-pc-cygwin/3.2/include -isystem
/cygdrive/c/cygwin/usr/src/crosstool-0.7/r
esult/i686-unknown-linux-gnu/gcc-3.3-glibc-2.3.2/i686-unknown-linux-gnu/
include
 -include ../include/libc-symbols.h  -DPIC -DSHARED
    -DASSEMBLER  -DGAS_SYNTA
X  -o
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-
3.3-glibc-2.3.2/build-glibc-headers/math/s_frexp.os
../sysdeps/i386/fpu/s_frexp.S: Assembler messages:
../sysdeps/i386/fpu/s_frexp.S:32: Warning: .type pseudo-op
used outside of .def/
.endef ignored.
../sysdeps/i386/fpu/s_frexp.S:32: Warning: rest of line
ignored; first ignored c
haracter is `t'
../sysdeps/i386/fpu/s_frexp.S:34: Warning: .size pseudo-op
used outside of .def/
.endef ignored.
../sysdeps/i386/fpu/s_frexp.S:34: Warning: rest of line
ignored; first ignored c
haracter is `t'
../sysdeps/i386/fpu/s_frexp.S:48: Warning: .type pseudo-op
used outside of .def/
.endef ignored.
../sysdeps/i386/fpu/s_frexp.S:48: Warning: rest of line
ignored; first ignored c
haracter is `_'
../sysdeps/i386/fpu/s_frexp.S:94: Warning: .size pseudo-op
used outside of .def/
.endef ignored.
../sysdeps/i386/fpu/s_frexp.S:94: Warning: rest of line
ignored; first ignored c
haracter is `_'
/usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/as:
BFD 2.13.
90 20030308 assertion fail
/netrel/src/binutils-20030307-1/bfd/coff-i386.c:529
../sysdeps/i386/fpu/s_frexp.S:68: Error: cannot represent
relocation type BFD_RE
LOC_386_GOTPC
make[2]: ***
[/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-
gnu/gcc-3.3-glibc-2.3.2/build-glibc-headers/math/s_frexp.os]
Error 1
make[2]: Leaving directory
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.3-glibc-2.3.2/glibc-2.3.2/math'
make[1]: *** [math/subdir_lib] Error 2
make[1]: Leaving directory
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.3-glibc-2.3.2/glibc-2.3.2'
make: *** [all] Error 2

*** ---                             --- ***


*** i686.dat + gcc2.95.3-glibc2.2.2.dat ***

I didn't save the tail of the output on this one, but it
was a linker
error in glibc; something to the effect of:

   build-glibc/iconv/iconv_prog.o: In function 'main':
                     iconv_prog.o: undefined reference to
close
                                                    ...
  open
                                                    ...
  __fxstat
                                                    ...
  read
   .
   .
   .
   build-glibc/libc.so.6: undefined reference to __fcntl
                                           ...   __access
                                           ...   __open64
                                           ...
  ____fstatvfs64
   collect2: ld returned 1 exit status


        

*** ---                             --- ***
 
*** i686.dat + gcc3.2.3-glibc2.2.5.dat  ***
This loks like it died in build-gcc-core. It's the old
mempcpy link error. I've seen multiple "fixes' recommended
for this; some say it is a -Dinhibit_libc thing, others say
just go into the gnu_regex.c file and #if 0 it out, I'm not
sure what the 'right' answer is. Here's the tail of the
build.

/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-3.2.3-
glibc-2.2.5/gcc-3.2.3/gcc/fixinc/gnu-regex.c: In function
`regerror':
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-3.2.3-
glibc-2.2.5/gcc-3.2.3/gcc/fixinc/gnu-regex.c:5723: warning:
implicit declaration
 of function `__mempcpy'
gcc -c -DIN_GCC -DHAVE_CONFIG_H -DIN_GCC -DCROSS_COMPILE -g
-O2 -W -Wall -Wwrite
-strings -Wstrict-prototypes -Wmissing-prototypes
-Wtraditional -pedantic -Wno-l
ong-long -DHAVE_CONFIG_H -DGENERATOR_FILE  -W -Wall
-Wwrite-strings -Wstrict-pro
totypes -Wmissing-prototypes -Wtraditional -pedantic
-Wno-long-long -I. -I.. -I/
cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gcc
-3.2.3-g
libc-2.2.5/gcc-3.2.3/gcc/fixinc
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build
/i686-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/gcc-3.2.3/gcc/fixinc/..
-I/cygdriv
e/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gcc-3.2.3-
glibc-2.
2.5/gcc-3.2.3/gcc/fixinc/../config
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/bu
ild/i686-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/gcc-3.2.3/gcc/fixinc/..
/../incl
ude
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-3.
2.3-glibc-2.2.5/gcc-3.2.3/gcc/fixinc/fixlib.c
gcc -DIN_GCC -DHAVE_CONFIG_H -DIN_GCC -DCROSS_COMPILE -g
-O2 -W -Wall -Wwrite-st
rings -Wstrict-prototypes -Wmissing-prototypes
-Wtraditional -pedantic -Wno-long
-long -DHAVE_CONFIG_H -DGENERATOR_FILE  -W -Wall
-Wwrite-strings -Wstrict-protot
ypes -Wmissing-prototypes -Wtraditional -pedantic
-Wno-long-long -I. -I.. -I/cyg
drive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gcc-3.
2.3-glib
c-2.2.5/gcc-3.2.3/gcc/fixinc
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i6
86-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/gcc-3.2.3/gcc/fixinc/..
-I/cygdrive/c
/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gcc-3.2.3-gli
bc-2.2.5
/gcc-3.2.3/gcc/fixinc/../config
-I/cygdrive/c/cygwin/usr/src/crosstool-0.7/build
/i686-unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/gcc-3.2.3/gcc/fixinc/../..
/include
  -o fixincl.exe fixincl.o fixtests.o fixfixes.o server.o
procopen.o gnu-regex.o
 fixlib.o ../../libiberty/libiberty.a
gnu-regex.o(.text+0x6556): In function `regerror':
/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-unknown-linux-gnu/gc
c-3.2.3-
glibc-2.2.5/gcc-3.2.3/gcc/fixinc/gnu-regex.c:5723:
undefined reference to `___me
mpcpy'
collect2: ld returned 1 exit status
make[2]: *** [full-stamp] Error 1
make[2]: Leaving directory
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-gcc-core/gcc/fixinc'
make[1]: *** [fixinc.sh] Error 2
make[1]: Leaving directory
`/cygdrive/c/cygwin/usr/src/crosstool-0.7/build/i686-
unknown-linux-gnu/gcc-3.2.3-glibc-2.2.5/build-gcc-core/gcc'
make: *** [all-gcc] Error 2

*** ---                             --- ***

Attachment: libib-configure
Description: Binary data

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