Does not build

[algrobman]

I'm running :
make -f $RV_ROOT/tools/Makefile

rm -rf *.log .s .hex .dis .tbl irun vcs simv .map snapshots veer
verilator .exe obj *.o *.sym ucli.key vc_hdrs.h csrc *.csv work
dataset.asdb library.cfg vsimsa.cfg riviera-build wave.asdb make -f el2/Cores-VeeR-EL2/tools/picolibc.mk all make[1]: Entering directory `el2' cd el2/Cores-VeeR-EL2/third_party/picolibc && meson el2/Cores-VeeR-EL2/third_party/picolibc/build
-Dmultilib=true
-Dmultilib-list=rv32imac/ilp32
-Dpicocrt=false
-Datomic-ungetc=false
-Dthread-local-storage=false
-Dio-long-long=true
-Dformat-default=integer
-Dincludedir=picolibc/riscv64-unknown-elf/include
-Dlibdir=picolibc/riscv64-unknown-elf/lib
-Dprefix=el2/Cores-VeeR-EL2/third_party/picolibc/install
-Dspecsdir=el2/Cores-VeeR-EL2/third_party/picolibc/install
--cross-file el2/Cores-VeeR-EL2/third_party/picolibc/build/cross.txt

ERROR: Neither directory contains a build file meson.build. make[1]: *** [el2/Cores-VeeR-EL2/third_party/picolibc/install/picolibc.specs] Error 1 make[1]: Leaving directory `el2' make: *** [picolibc] Error 2

what's wrong?

[robertszczepanski]

Hi @algrobman, it looks like the error you've attached occurs when you try to build VeeR core without having all required submodules.

Please make sure that command git submodule update --init --recursive executes without errors. Since you've already run build command you might have to first run git submodule deinit --force . (note the dot at the end).

[algrobman]

BTW, what is this picolibs stuff for?

[algrobman]

cd el2/Cores-VeeR-EL2/third_party/picolibc && meson el2/Cores-VeeR-EL2/third_party/picolibc/build
-Dmultilib=true
-Dmultilib-list=rv32imac/ilp32
-Dpicocrt=false
-Datomic-ungetc=false
-Dthread-local-storage=false
-Dio-long-long=true
-Dformat-default=integer
-Dincludedir=picolibc/riscv64-unknown-elf/include
-Dlibdir=picolibc/riscv64-unknown-elf/lib
-Dprefix=el2/Cores-VeeR-EL2/third_party/picolibc/install
-Dspecsdir=el2/Cores-VeeR-EL2/third_party/picolibc/install
--cross-file el2/Cores-VeeR-EL2/third_party/picolibc/build/cross.txt DEPRECATION: c_args in the [properties] section of the machine file is deprecated, use the [built-in options] section. The Meson build system Version: 0.59.0 Source dir: el2/Cores-VeeR-EL2/third_party/picolibc Build dir: el2/Cores-VeeR-EL2/third_party/picolibc/build Build type: cross build Project name: picolibc Project version: 1.8 C compiler for the host machine: riscv64-unknown-elf-gcc (gcc 10.1.0 "riscv64-unknown-elf-gcc (GCC) 10.1.0") C linker for the host machine: riscv64-unknown-elf-gcc ld.bfd 2.35 C compiler for the build machine: cc (gcc 4.8.5 "cc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)") C linker for the build machine: cc ld.bfd 2.34 Build machine cpu family: x86_64 Build machine cpu: x86_64 Host machine cpu family: riscv64 Host machine cpu: riscv Target machine cpu family: riscv64 Target machine cpu: riscv Compiler for C supports arguments -nostdlib: YES Checking if "long double check" compiles: YES Fetching value of define "SIZEOF_FLOAT" : 4 Fetching value of define "SIZEOF_DOUBLE" : 8 Fetching value of define "SIZEOF_LONG_DOUBLE" : 16 Compiler for C supports arguments -fno-common: YES Compiler for C supports arguments -frounding-math: YES Compiler for C supports arguments -fsignaling-nans: YES Compiler for C supports arguments -Wno-unsupported-floating-point-opt: NO Compiler for C supports arguments -fno-stack-protector: YES Compiler for C supports arguments -fno-builtin-copysignl: YES Program riscv64-unknown-elf-gcc-nm found: YES Program scripts/duplicate-names found: YES (el2/Cores-VeeR-EL2/third_party/picolibc/scripts/duplicate-names) Compiler for C supports link arguments -Wl,--defsym=_start=0: YES Compiler for C supports link arguments -Wl,-alias,main,testalias: NO Compiler for C supports function attribute alias: YES Compiler for C supports function attribute format: YES Compiler for C supports function attribute weak: YES Configuring picolibc.specs using configuration Configuring picolibcpp.specs using configuration Configuring picolibc.ld using configuration Configuring picolibcpp.ld using configuration Compiler for C supports arguments -Werror=implicit-function-declaration: YES Compiler for C supports arguments -Werror=vla: YES Compiler for C supports arguments -Warray-bounds: YES Compiler for C supports arguments -Wold-style-definition: YES Compiler for C supports arguments -Werror=double-promotion: YES Compiler for C supports arguments -Wno-missing-braces: YES Compiler for C supports arguments -Wno-implicit-int: YES Compiler for C supports arguments -Wno-return-type: YES Compiler for C supports arguments -Wno-unused-command-line-argument: NO Checking if "packed structs may contain bitfields" compiles: YES Checking if "has __builtin_mul_overflow" links: YES Checking if "has __builtin_add_overflow" links: YES Checking if "supports _Complex" compiles: YES Checking if "has __builtin_expect" links: YES Compiler for C supports arguments -Werror: YES Checking if "attribute alloc_size" compiles: YES Checking if "attributes constructor/destructor" compiles: YES Message: target .;

meson.build:920:1: ERROR: Problem encountered: Unavailable multilib: rv32imac/ilp32

A full log can be found at el2/Cores-VeeR-EL2/third_party/picolibc/build/meson-logs/meson-log.txt make[1]: *** [el2/Cores-VeeR-EL2/third_party/picolibc/install/picolibc.specs] Error 1 make[1]: Leaving directory `el2' make: *** [picolibc] Error 2

[tmichalak]

This error means that the toolchain you're using doesn't have support for the 32-bit RISC-V architecture with the specified ISA extensions and ABI. You need a toolchain with multilib support (see #132).

[tmichalak]

BTW, what is this picolibs stuff for?

picolibc is a fully BSD licensed revised version of newlibc which uses a lightweight stdio lib, which is more suitable for low memory devices which VeeR is meant for.

[algrobman]

Don't you think that not all users need this picolibc and it shouldn't be built in main Makefile if I want to run just hello_world?