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Re: GCC debug

But how to debug cc1. Because now I port the gcc to my RISC target.
But when build the libgcc2.c.  Some error occurred. So i have to debug
Any advice about how to debug?

gdb --args $(./xgcc -###
-B/usr/local/cross/rice-elf/rice-elf/lib/ -isystem
/usr/local/cross/rice-elf/rice-elf/include -isystem
/usr/local/cross/rice-elf/rice-elf/sys-include -O2 -g -g -O2 -O2  -O2
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include   -g  -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc  -I. -I. -I../.././gcc
-I../../../rice-gcc-4.3.0/libgcc -I../../../rice-gcc-4.3.0/libgcc/.
-I../../../rice-gcc-4.3.0/libgcc/../include  -DHAVE_CC_TLS -o
_muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c
../../../rice-gcc-4.3.0/libgcc/../gcc/libgcc2.c 2>&1 | fgrep cc1)
gdb: `--args' specified but no program specified.


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