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| author | Jan-Benedict Glaw <jbglaw@lug-owl.de> | 2022-09-06 09:18:36 +0200 |
|---|---|---|
| committer | Jan-Benedict Glaw <jbglaw@lug-owl.de> | 2022-09-06 09:20:37 +0200 |
| commit | bc1bc808d860c013318a3f126dc69cb894cb3e11 (patch) | |
| tree | 20adb380aae2a89f9cd12307aa7be400c2788dd5 | |
| parent | 3f585bdaa7f6fb02753ba7b4918f065357a6b7fd (diff) | |
| download | gcc-bc1bc808d860c013318a3f126dc69cb894cb3e11.zip gcc-bc1bc808d860c013318a3f126dc69cb894cb3e11.tar.gz gcc-bc1bc808d860c013318a3f126dc69cb894cb3e11.tar.bz2 | |
No actual regclasses for bpf
Building for for bpf-unknown-none target, recent GCCs will issue an unused
variable warning as the REGNO_REG_CLASS macro doesn't actually use its
argument. Reference the argument as (void) to silence the warning.
.../gcc/configure --prefix=... --enable-werror-always --enable-languages=all --disable-gcov --disable-shared --disable-threads --target=bpf-unknown-none --without-headers
[...]
make V=1 all-gcc
[...]
/usr/lib/gcc-snapshot/bin/g++ -fno-PIE -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 -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include -I../../gcc/gcc/../libcody -I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../gcc/gcc/../libbacktrace -o regcprop.o -MT regcprop.o -MMD -MP -MF ./.deps/regcprop.TPo ../../gcc/gcc/regcprop.cc
../../gcc/gcc/regcprop.cc: In function 'bool copyprop_hardreg_forward_1(basic_block, value_data*)':
../../gcc/gcc/regcprop.cc:794:24: error: unused variable 'regno' [-Werror=unused-variable]
794 | unsigned int regno = REGNO (SET_SRC (set));
| ^~~~~
cc1plus: all warnings being treated as errors
make[1]: *** [Makefile:1146: regcprop.o] Error 1
make[1]: Leaving directory '/var/lib/laminar/run/gcc-bpf-unknown-none/1/toolchain-build/gcc'
make: *** [Makefile:4565: all-gcc] Error 2
gcc/
* config/bpf/bpf.h (REGNO_REG_CLASS): Reference arguments as (void).
| -rw-r--r-- | gcc/config/bpf/bpf.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/bpf/bpf.h b/gcc/config/bpf/bpf.h index 5b3f4a5..5790347 100644 --- a/gcc/config/bpf/bpf.h +++ b/gcc/config/bpf/bpf.h @@ -209,7 +209,7 @@ enum reg_class register REGNO. In general there is more that one such class; choose a class which is "minimal", meaning that no smaller class also contains the register. */ -#define REGNO_REG_CLASS(REGNO) GENERAL_REGS +#define REGNO_REG_CLASS(REGNO) ((void)(REGNO), GENERAL_REGS) /* A macro whose definition is the name of the class to which a valid base register must belong. A base register is one used in |