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Problem with generating file libgcc.map


Hello,

I'm trying to cross compile latest gcc snapshot. Host is
MINGW32_NT-5.1, target is x86_64-pc-linux. I've successfully
cross-compiled binutils and configured gcc with options:

../gcc/configure --target=x86_64-pc-linux
--prefix=/c/cross-gcc/x86_64-pc-linux --disable-nls
--enable-languages=c,c++ --without-headers --with-newlib
--disable-decimal-float --disable-libgomp --disable-threads

Make generated empty file  ligbcc.map which causes linker error:

c:\cross-gcc\x86_64-pc-linux\x86_64-pc-linux\bin\ld.exe:libgcc.map:1:
syntax err or in VERSION script

libgcc.map is build as following

{ /usr/src/build-gcc/./gcc/nm -pg _muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3
_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _enable_execute_stac
k_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3
_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s
.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s
.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.
o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o
_muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3
_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o _fixunsxfsi_s.o
_fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsx
fdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatundisf_s.o _floatundi
df_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_
w_sdiv_s.o _udivmoddi4_s.o addtf3_s.o divtf3_s.o eqtf2_s.o getf2_s.o letf2_s.o m
ultf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsit
f_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o e
xtendsftf2_s.o extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o tru
nctfxf2_s.o tf-signs_s.o unwind-dw2_s.o unwind-dw2-fde-glibc_s.o unwind-sjlj_s.o
gthr-gnat_s.o unwind-c_s.o emutls_s.o; echo %%; \
cat ../../../../gcc/libgcc/../gcc/libgcc-std.ver ../../../../gcc/libgc
c/../gcc/config/i386/libgcc-glibc.ver \
| sed -e '/^[ ]*#/d' \
-e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
| /usr/src/build-gcc/./gcc/xgcc -B/usr/src/build-gcc/./gcc/ -B/c/cro
ss-gcc/x86_64-pc-linux/x86_64-pc-linux/bin/ -B/c/cross-gcc/x86_64-pc-linux/x86_6
4-pc-linux/lib/ -isystem /c/cross-gcc/x86_64-pc-linux/x86_64-pc-linux/include -i
system /c/cross-gcc/x86_64-pc-linux/x86_64-pc-linux/sys-include -g -O2 -m32 -
O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -DNATIVE_CROSS -W -Wall -Wwrite
-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-defini
tion -isystem ./include -fPIC -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhi
bit_libc -I. -I. -I../../.././gcc -I../../../../gcc/libgcc -I../../../../gcc/li
bgcc/. -I../../../../gcc/libgcc/../gcc -I../../../../gcc/libgcc/../include -DHA
VE_CC_TLS -DUSE_TLS -E -xassembler-with-cpp -; \
} | gawk -f ../../../../gcc/libgcc/../gcc/mkmap-symver.awk > tmp-libgc
c.map
mv tmp-libgcc.map libgcc.map

I've traced it and its final "gawk -f
../../../../gcc/libgcc/../gcc/mkmap-symver.awk" which produces empty
file.

My first guess is that nm produces result in other format that
mkmap-symver.awk expects, but what should be correct nm flags?

Or is there anything else wrong?

--
Piotr Jachowicz

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