On Mon, 2023-10-30 at 19:50 +0800, chenglulu wrote:
> 在 2023/10/30 下午7:42, Xi Ruoyao 写道:
> > Now loongarch.md uses HAVE_AS_TLS, we need this to fix the failure
> > building a cross compiler if the cross assembler is not installed yet.
> >
> > gcc/ChangeLog:
> >
> > * config/loongarch/loongarch-opts.h (HAVE_AS_TLS): Define to 0
> > if not defined yet.
> > ---
> >
> > Ok for trunk?
> I have no problem with this submission, but I don't understand the
> circumstances surrounding the error.
When the developers hack GCC they sometimes build a cross compiler with
no cross assembler, then HAVE_AS_TLS will just be undefined. And in the
future we may have an assmebler w/o TLS support (for example a tiny
assembler for bare-metal target), then HAVE_AS_TLS will be undefined
too.
The error message is:
g++ -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -I.
-Ibuild -I../../gcc/gcc -I../../gcc/gcc/build -I../../gcc/gcc/../include
-I../../gcc/gcc/../libcpp/include \
-o build/gencondmd.o build/gencondmd.cc
../../gcc/gcc/config/loongarch/loongarch.md:3655:2: error: 'HAVE_AS_TLS' was
not declared in this scope
3655 | "HAVE_AS_TLS"
| ^~~~~~~~~~~
../../gcc/gcc/config/loongarch/loongarch.md:3655:2: error: 'HAVE_AS_TLS' was
not declared in this scope
3655 | "HAVE_AS_TLS"
| ^~~~~~~~~~~
../../gcc/gcc/config/loongarch/loongarch.md:3655:2: error: 'HAVE_AS_TLS' was
not declared in this scope
3655 | "HAVE_AS_TLS"
| ^~~~~~~~~~~
../../gcc/gcc/config/loongarch/loongarch.md:3655:2: error: 'HAVE_AS_TLS' was
not declared in this scope
3655 | "HAVE_AS_TLS"
| ^~~~~~~~~~~
make[1]: *** [Makefile:2962: build/gencondmd.o] Error 1
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
