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I am building branch khadas-linux-6.1.y with fenix tool using docker.
And I got some errors related to preprocess constant expressions. I was fixing it replacing expressions like 0.707 * 1024 with manually calculated values until stuck with the following error:
Info: Linux: Already on branch 'khadas-linux-6.1.y'
Info: Build linux...
aarch64-none-linux-gnu- /home/khadas/fenix/build/toolchains/gcc-arm-aarch64-none-linux-gnu-mainline/bin
make[1]: Entering directory '/home/khadas/fenix/build/linux'
#
# No change to .config
#
make[1]: Leaving directory '/home/khadas/fenix/build/linux'
make[1]: Entering directory '/home/khadas/fenix/build/linux'
CALL scripts/checksyscalls.sh
CC drivers/base/power/sysfs.o
CC drivers/base/power/generic_ops.o
CC drivers/gpu/drm/meson/meson_viu.o
CC [M] drivers/block/drbd/drbd_bitmap.o
CC drivers/base/power/common.o
CC drivers/base/power/qos.o
drivers/gpu/drm/meson/meson_viu.c:64:9: internal compiler error: Illegal instruction
64 | COEFF_NORM(0.181873), COEFF_NORM(0.611831), COEFF_NORM(0.061765),
| ^~~~~~~~~~
0x1732310 diagnostic_impl(rich_location*, diagnostic_metadata const*, int, char const*, __va_list_tag (*) [1], diagnostic_t)
???:0
0x1732f96 internal_error(char const*, ...)
???:0
0xc24faf crash_signal(int)
???:0
0x1935b09 __gmpn_mul_basecase
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://bugs.linaro.org/> for instructions.
make[6]: *** [scripts/Makefile.build:250: drivers/gpu/drm/meson/meson_viu.o] Error 1
make[5]: *** [scripts/Makefile.build:500: drivers/gpu/drm/meson] Error 2
make[4]: *** [scripts/Makefile.build:500: drivers/gpu/drm] Error 2
make[3]: *** [scripts/Makefile.build:500: drivers/gpu] Error 2
make[3]: *** Waiting for unfinished jobs....
It is related to same issue as compiler unable to precalculate expression #define COEFF_NORM(a) ((int)((((a) * 2048.0) + 1) / 2)), but I am not so familiar to this code to resolve such kind of issues.
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