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Compiling P-ext instructions #1190

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infini8-13 opened this issue Feb 13, 2023 · 10 comments
Closed

Compiling P-ext instructions #1190

infini8-13 opened this issue Feb 13, 2023 · 10 comments

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@infini8-13
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How do I compile P-extension instructions(v0.9.11) using the toolchain? I get the error

Error: -march=rv64imafd_zpn: unknown prefixed ISA extension 'zpn' psimd.S:18: Error: unrecognized opcode 'radd16 t3,t2,t4'

when I run

riscv64-unknown-elf-gcc -march=rv64imafd_zpn psimd.S -o psimd.o

How do I proceed further? riscv-opcodes has zpn in unratified. How do I build the toolchain so that it supports Zpn, Zbpbo, Zpsfoperand?
@infini8-13 infini8-13 mentioned this issue Feb 13, 2023
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@pz9115
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pz9115 commented Feb 13, 2023 •
edited
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Since the P-ext is not ratified and plan to refactor, currently we only have downstream supports, you can checkout the gcc&binutils repo into:

gcc: https://github.com/plctlab/riscv-gcc/tree/riscv-gcc-p-ext

binutils: https://github.com/plctlab/riscv-binutils-gdb/tree/riscv-binutils-p-ext

then rebuild the toolchain. Here only support intrinsic to call the instructions.

@infini8-13
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Great, thanks! I will do as suggested and update you.

@infini8-13
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I changed the submodule link in .gitmodules, along with appropriate branches of the repositories given by @pz9115 . I ran the following commands:
git submodule sync
git submodule update --init --recursive --remote
./configure --prefix=/opt/riscv
make linux
The build was successful, but the error is still the same.
Please let me know what the ideal configure options might be before the build, and what commands I should run to compile.

The assembly code:

_start:
andi t0, t0, 0 # Clear register t0
andi t1, t1, 0 # Clear register t1
andi t2, t2, 0 # Clear register t2
andi t3, t3, 0 # Clear register t3
andi t4, t4, 0 # Clear register t3
li t0, 394 # Load register t0
li t1, 19 # Load register t1
#Muldiv
mul t2, t0, t1
#FP single and Double precision
fcvt.s.w ft0, t2
fcvt.d.w ft1, t1
fdiv.d ft2, ft1, ft0
fadd.s ft3, ft0, ft2
fcvt.w.s t4, ft3
#Psimd
radd16 t3, t2, t4

@TommyMurphyTM1234
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TommyMurphyTM1234 commented Feb 17, 2023 •
edited
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When I try to build the toolchain as follows:

cd ~/Downloads
git clone --recursive https://github.com/riscv-collab/riscv-gnu-toolchain
git clone --recursive https://github.com/plctlab/riscv-gcc -b riscv-gcc-p-ext
git clone --recursive https://github.com/plctlab/riscv-binutils-gdb -b riscv-binutils-p-ext
cd riscv-gnu-toolchain
./configure --prefix=`pwd`/installed-tools --with-arch=rv64imafd_zpn --with-abi=lp64d --with-gcc-src=$HOME/Downloads/riscv-gcc --with-binutils-src=$HOME/Downloads/riscv-gnu-toolchain
make

It gets this far and just seems to stall...

make -C build-binutils-newlib
make[1]: Entering directory '/home/tommy/Downloads/riscv-gnu-toolchain/build-binutils-newlib'
mkdir -p /home/tommy/Downloads/riscv-gnu-toolchain/installed-tools/.test || \
	(echo "Sorry, you don't have permission to write to" \
	 "'/home/tommy/Downloads/riscv-gnu-toolchain/installed-tools'. Please make sure that the location is " \
	 "writable or use --prefix to specify another destination.'" \
	 && exit 1)
rm -r /home/tommy/Downloads/riscv-gnu-toolchain/installed-tools/.test
mkdir -p stamps/ && touch stamps/check-write-permission
rm -rf stamps/build-binutils-newlib build-binutils-newlib
mkdir build-binutils-newlib
cd build-binutils-newlib && CC_FOR_TARGET=riscv64-unknown-elf-gcc /home/tommy/Downloads/riscv-gnu-toolchain/binutils/configure \
	--target=riscv64-unknown-elf \
	 \
	--prefix=/home/tommy/Downloads/riscv-gnu-toolchain/installed-tools \
	 \
	--disable-werror \
	--with-expat=yes  \
	--disable-gdb \
	--disable-sim \
	--disable-libdecnumber \
	--disable-readline \
	--with-isa-spec=2.2

@TommyMurphyTM1234
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And when I used this modified .gitmodules.pext file:

[submodule "binutils"]
	path = binutils
	url = https://github.com/plctlab/riscv-binutils-gdb
	branch = riscv-binutils-p-ext
[submodule "gcc"]
	path = gcc
	url = https://github.com/plctlab/riscv-gcc
	branch = riscv-gcc-p-ext
[submodule "glibc"]
	path = glibc
	url = https://sourceware.org/git/glibc.git
[submodule "dejagnu"]
	path = dejagnu
	url = https://git.savannah.gnu.org/git/dejagnu.git
	branch = dejagnu-1.6.3
[submodule "newlib"]
	path = newlib
	url = https://sourceware.org/git/newlib-cygwin.git
	branch = master
[submodule "gdb"]
	path = gdb
	url = https://sourceware.org/git/binutils-gdb.git
	branch = gdb-12-branch
[submodule "qemu"]
	path = qemu
	url = https://gitlab.com/qemu-project/qemu.git
[submodule "musl"]
	path = musl
	url = https://git.musl-libc.org/git/musl
	branch = master
[submodule "spike"]
	path = spike
	url = https://github.com/riscv-software-src/riscv-isa-sim.git
	branch = master
[submodule "pk"]
	path = pk
	url = https://github.com/riscv-software-src/riscv-pk.git
	branch = master

which is copied here:

git clone  https://github.com/riscv-collab/riscv-gnu-toolchain
cd riscv-gnu-toolchain
cp ../.gitmodules.pext .gitmodules
./configure --prefix=`pwd`/installed-tools --with-arch=rv64imafd_zpn --with-abi=lp64d

and tried to build, I got this

make 2>&1 | tee build.log
cd /home/tommy/Downloads/riscv-gnu-toolchain && \
flock `git rev-parse --git-dir`/config git submodule init /home/tommy/Downloads/riscv-gnu-toolchain/gcc/ && \
flock `git rev-parse --git-dir`/config git submodule update /home/tommy/Downloads/riscv-gnu-toolchain/gcc/
Submodule 'gcc' (https://github.com/plctlab/riscv-gcc) registered for path 'gcc'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/gcc'...
From https://github.com/plctlab/riscv-gcc
 * branch                    2ee5e4300186a92ad73f1a1a64cb918dc76c8d67 -> FETCH_HEAD
Submodule path 'gcc': checked out '2ee5e4300186a92ad73f1a1a64cb918dc76c8d67'
cd /home/tommy/Downloads/riscv-gnu-toolchain && \
flock `git rev-parse --git-dir`/config git submodule init /home/tommy/Downloads/riscv-gnu-toolchain/newlib/ && \
flock `git rev-parse --git-dir`/config git submodule update /home/tommy/Downloads/riscv-gnu-toolchain/newlib/
Submodule 'newlib' (https://sourceware.org/git/newlib-cygwin.git) registered for path 'newlib'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/newlib'...
Submodule path 'newlib': checked out '415fdd4279b85eeec9d54775ce13c5c412451e08'
cd /home/tommy/Downloads/riscv-gnu-toolchain && \
flock `git rev-parse --git-dir`/config git submodule init /home/tommy/Downloads/riscv-gnu-toolchain/binutils/ && \
flock `git rev-parse --git-dir`/config git submodule update /home/tommy/Downloads/riscv-gnu-toolchain/binutils/
Submodule 'binutils' (https://github.com/plctlab/riscv-binutils-gdb) registered for path 'binutils'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/binutils'...
fatal: remote error: upload-pack: not our ref b51c2fec1da205ea3e7354cbb3e253018d64873c
fatal: the remote end hung up unexpectedly
Fetched in submodule path 'binutils', but it did not contain b51c2fec1da205ea3e7354cbb3e253018d64873c. Direct fetching of that commit failed.
make: *** [Makefile:282: /home/tommy/Downloads/riscv-gnu-toolchain/binutils/.git] Error 1

@TommyMurphyTM1234
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I changed the submodule link in .gitmodules, along with appropriate branches of the repositories given by @pz9115 . I ran the following commands: git submodule sync git submodule update --init --recursive --remote ./configure --prefix=/opt/riscv make linux The build was successful

I tried this too.
I get various errors:

git submodule update --init --recursive --remote
Submodule 'binutils' (https://github.com/plctlab/riscv-binutils-gdb) registered for path 'binutils'
Submodule 'dejagnu' (https://git.savannah.gnu.org/git/dejagnu.git) registered for path 'dejagnu'
Submodule 'gcc' (https://github.com/plctlab/riscv-gcc) registered for path 'gcc'
Submodule 'gdb' (https://sourceware.org/git/binutils-gdb.git) registered for path 'gdb'
Submodule 'glibc' (https://sourceware.org/git/glibc.git) registered for path 'glibc'
Submodule 'musl' (https://git.musl-libc.org/git/musl) registered for path 'musl'
Submodule 'newlib' (https://sourceware.org/git/newlib-cygwin.git) registered for path 'newlib'
Submodule 'pk' (https://github.com/riscv-software-src/riscv-pk.git) registered for path 'pk'
Submodule 'qemu' (https://gitlab.com/qemu-project/qemu.git) registered for path 'qemu'
Submodule 'spike' (https://github.com/riscv-software-src/riscv-isa-sim.git) registered for path 'spike'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/binutils'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/dejagnu'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/gcc'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/gdb'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/glibc'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/musl'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/newlib'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/pk'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/spike'...
Submodule path 'binutils': checked out '9e69931fc403608176cc056b541b567e09271194'
Submodule path 'dejagnu': checked out 'd51e3f9f8188a735a64e7b2348e8fb7084f1d666'
Submodule path 'gcc': checked out '7eeadf67b7b46ef0c814e4769d5dd301ad8401b8'
Submodule path 'gdb': checked out 'a4418a9c6f99fd31c51698b1f6a6f8dbc1b81b6f'
remote: Enumerating objects: 11, done.
remote: Counting objects: 100% (11/11), done.
remote: Compressing objects: 100% (6/6), done.
remote: Total 6 (delta 5), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (6/6), 892 bytes | 63.00 KiB/s, done.
From https://sourceware.org/git/glibc
   26c1769509..609054152f  master     -> origin/master
Submodule path 'glibc': checked out '609054152fd77c9b572bb04c4af2f8da1ed0c86e'
Submodule path 'musl': checked out 'f47a8cdd250d9163fcfb39bf4e9d813957c0b187'
Submodule path 'newlib': checked out 'e4cc9e48462b538253d62109012b90befaaf7bc5'
Submodule path 'pk': checked out '573c858d9071a2216537f71de651a814f76ee76d'
Submodule path 'qemu': checked out '6dffbe36af79e26a4d23f94a9a1c1201de99c261'
Submodule 'dtc' (https://gitlab.com/qemu-project/dtc.git) registered for path 'qemu/dtc'
Submodule 'meson' (https://gitlab.com/qemu-project/meson.git) registered for path 'qemu/meson'
Submodule 'roms/QemuMacDrivers' (https://gitlab.com/qemu-project/QemuMacDrivers.git) registered for path 'qemu/roms/QemuMacDrivers'
Submodule 'roms/SLOF' (https://gitlab.com/qemu-project/SLOF.git) registered for path 'qemu/roms/SLOF'
Submodule 'roms/edk2' (https://gitlab.com/qemu-project/edk2.git) registered for path 'qemu/roms/edk2'
Submodule 'roms/ipxe' (https://gitlab.com/qemu-project/ipxe.git) registered for path 'qemu/roms/ipxe'
Submodule 'roms/openbios' (https://gitlab.com/qemu-project/openbios.git) registered for path 'qemu/roms/openbios'
Submodule 'roms/opensbi' (https://gitlab.com/qemu-project/opensbi.git) registered for path 'qemu/roms/opensbi'
Submodule 'roms/qboot' (https://gitlab.com/qemu-project/qboot.git) registered for path 'qemu/roms/qboot'
Submodule 'roms/qemu-palcode' (https://gitlab.com/qemu-project/qemu-palcode.git) registered for path 'qemu/roms/qemu-palcode'
Submodule 'roms/seabios' (https://gitlab.com/qemu-project/seabios.git/) registered for path 'qemu/roms/seabios'
Submodule 'roms/seabios-hppa' (https://gitlab.com/qemu-project/seabios-hppa.git) registered for path 'qemu/roms/seabios-hppa'
Submodule 'roms/skiboot' (https://gitlab.com/qemu-project/skiboot.git) registered for path 'qemu/roms/skiboot'
Submodule 'roms/u-boot' (https://gitlab.com/qemu-project/u-boot.git) registered for path 'qemu/roms/u-boot'
Submodule 'roms/u-boot-sam460ex' (https://gitlab.com/qemu-project/u-boot-sam460ex.git) registered for path 'qemu/roms/u-boot-sam460ex'
Submodule 'roms/vbootrom' (https://gitlab.com/qemu-project/vbootrom.git) registered for path 'qemu/roms/vbootrom'
Submodule 'subprojects/libvfio-user' (https://gitlab.com/qemu-project/libvfio-user.git) registered for path 'qemu/subprojects/libvfio-user'
Submodule 'tests/fp/berkeley-softfloat-3' (https://gitlab.com/qemu-project/berkeley-softfloat-3.git) registered for path 'qemu/tests/fp/berkeley-softfloat-3'
Submodule 'tests/fp/berkeley-testfloat-3' (https://gitlab.com/qemu-project/berkeley-testfloat-3.git) registered for path 'qemu/tests/fp/berkeley-testfloat-3'
Submodule 'tests/lcitool/libvirt-ci' (https://gitlab.com/libvirt/libvirt-ci.git) registered for path 'qemu/tests/lcitool/libvirt-ci'
Submodule 'ui/keycodemapdb' (https://gitlab.com/qemu-project/keycodemapdb.git) registered for path 'qemu/ui/keycodemapdb'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/dtc'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/meson'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/QemuMacDrivers'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/SLOF'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/ipxe'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/openbios'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/opensbi'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/qboot'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/qemu-palcode'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/seabios'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/seabios-hppa'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/skiboot'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/u-boot'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/u-boot-sam460ex'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/vbootrom'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/subprojects/libvfio-user'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/tests/fp/berkeley-softfloat-3'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/tests/fp/berkeley-testfloat-3'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/tests/lcitool/libvirt-ci'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/ui/keycodemapdb'...
Submodule path 'qemu/dtc': checked out '039a99414e778332d8f9c04cbd3072e1dcc62798'
Submodule path 'qemu/meson': checked out '8fdb8b01ad009cb3e9621b033f2f16e6f5203a68'
Submodule path 'qemu/roms/QemuMacDrivers': checked out '90c488d5f4a407342247b9ea869df1c2d9c8e266'
Submodule path 'qemu/roms/SLOF': checked out '6b6c16b4b40763507cf1f518096f3c3883c5cf2d'
Submodule path 'qemu/roms/edk2': checked out '02fcfdce1e5ce86f1951191883e7e30de5aa08be'
Submodule 'SoftFloat' (https://github.com/ucb-bar/berkeley-softfloat-3.git) registered for path 'qemu/roms/edk2/ArmPkg/Library/ArmSoftFloatLib/berkeley-softfloat-3'
Submodule 'BaseTools/Source/C/BrotliCompress/brotli' (https://github.com/google/brotli) registered for path 'qemu/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli'
Submodule 'CryptoPkg/Library/OpensslLib/openssl' (https://github.com/openssl/openssl) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl'
Submodule 'MdeModulePkg/Library/BrotliCustomDecompressLib/brotli' (https://github.com/google/brotli) registered for path 'qemu/roms/edk2/MdeModulePkg/Library/BrotliCustomDecompressLib/brotli'
Submodule 'MdeModulePkg/Universal/RegularExpressionDxe/oniguruma' (https://github.com/kkos/oniguruma) registered for path 'qemu/roms/edk2/MdeModulePkg/Universal/RegularExpressionDxe/oniguruma'
Submodule 'RedfishPkg/Library/JsonLib/jansson' (https://github.com/akheron/jansson) registered for path 'qemu/roms/edk2/RedfishPkg/Library/JsonLib/jansson'
Submodule 'UnitTestFrameworkPkg/Library/CmockaLib/cmocka' (https://github.com/tianocore/edk2-cmocka.git) registered for path 'qemu/roms/edk2/UnitTestFrameworkPkg/Library/CmockaLib/cmocka'
Submodule 'UnitTestFrameworkPkg/Library/GoogleTestLib/googletest' (https://github.com/google/googletest.git) registered for path 'qemu/roms/edk2/UnitTestFrameworkPkg/Library/GoogleTestLib/googletest'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/ArmPkg/Library/ArmSoftFloatLib/berkeley-softfloat-3'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/MdeModulePkg/Library/BrotliCustomDecompressLib/brotli'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/MdeModulePkg/Universal/RegularExpressionDxe/oniguruma'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/RedfishPkg/Library/JsonLib/jansson'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/UnitTestFrameworkPkg/Library/CmockaLib/cmocka'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/UnitTestFrameworkPkg/Library/GoogleTestLib/googletest'...
Submodule path 'qemu/roms/edk2/ArmPkg/Library/ArmSoftFloatLib/berkeley-softfloat-3': checked out '5c06db33fc1e2130f67c045327b0ec949032df1d'
Submodule path 'qemu/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli': checked out 'ed1995b6bda19244070ab5d331111f16f67c8054'
Submodule path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl': checked out 'cd870db16348d0d09cb05b7393cf9281509c7795'
Submodule 'gost-engine' (https://github.com/gost-engine/engine) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/gost-engine'
Submodule 'krb5' (https://github.com/krb5/krb5) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/krb5'
Submodule 'oqs-provider' (https://github.com/open-quantum-safe/oqs-provider.git) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/oqs-provider'
Submodule 'pyca.cryptography' (https://github.com/pyca/cryptography.git) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/pyca-cryptography'
Submodule 'python-ecdsa' (https://github.com/tlsfuzzer/python-ecdsa) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/python-ecdsa'
Submodule 'tlsfuzzer' (https://github.com/tlsfuzzer/tlsfuzzer) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/tlsfuzzer'
Submodule 'tlslite-ng' (https://github.com/tlsfuzzer/tlslite-ng) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/tlslite-ng'
Submodule 'wycheproof' (https://github.com/google/wycheproof) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/wycheproof'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/gost-engine'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/krb5'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/oqs-provider'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/pyca-cryptography'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/python-ecdsa'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/tlsfuzzer'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/tlslite-ng'...
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/wycheproof'...
Submodule path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/gost-engine': checked out '2b22503cf83c56f27719eccce013999203e69db0'
Submodule 'libprov' (https://github.com/provider-corner/libprov.git) registered for path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/gost-engine/libprov'
Cloning into '/home/tommy/Downloads/riscv-gnu-toolchain/qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/gost-engine/libprov'...
fatal: Needed a single revision
Unable to find current origin/master revision in submodule path 'libprov'
Submodule path 'qemu/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/krb5': checked out '47c2a12830dbd7fb8e13c239ddc0ac74129a91f6'
fatal: Needed a single revision
Unable to find current origin/master revision in submodule path 'oqs-provider'
Submodule path 'qemu/roms/edk2/MdeModulePkg/Library/BrotliCustomDecompressLib/brotli': checked out 'ed1995b6bda19244070ab5d331111f16f67c8054'
Submodule path 'qemu/roms/edk2/MdeModulePkg/Universal/RegularExpressionDxe/oniguruma': checked out '28ee452bc98501b9b82e088948044fb810f2833c'
Submodule path 'qemu/roms/edk2/RedfishPkg/Library/JsonLib/jansson': checked out 'a22dc95311a79f07b68fdfeefe3b06eb793d3bc9'
Submodule path 'qemu/roms/edk2/UnitTestFrameworkPkg/Library/CmockaLib/cmocka': checked out '59dc0013f9f29fcf212fe4911c78e734263ce24c'
fatal: Needed a single revision
Unable to find current origin/master revision in submodule path 'UnitTestFrameworkPkg/Library/GoogleTestLib/googletest'
Submodule path 'qemu/roms/ipxe': checked out '2733c4763a50b9eb0c206e7430d4d0638451e5e9'
Submodule path 'qemu/roms/openbios': checked out 'af97fd7af5e7c18f591a7b987291d3db4ffb28b5'
Submodule path 'qemu/roms/opensbi': checked out '65c2190b47b14341dac9f763fed2d4ecbbff2a69'
Submodule path 'qemu/roms/qboot': checked out '8ca302e86d685fa05b16e2b208888243da319941'
Submodule path 'qemu/roms/qemu-palcode': checked out '99d9b4dcf27d7fbcbadab71bdc88ef6531baf6bf'
Submodule path 'qemu/roms/seabios': checked out 'ea1b7a0733906b8425d948ae94fba63c32b1d425'
Submodule path 'qemu/roms/seabios-hppa': checked out '458626c4c6441045c0612f24313c7cf1f95e71c6'
Submodule path 'qemu/roms/skiboot': checked out 'cd0dae8fe84fbba65a91d7c54c0a0bf1d57a6b3a'
Submodule path 'qemu/roms/u-boot': checked out 'fcb5117da8876fc5b2bf941528301218d1be7b1c'
Submodule path 'qemu/roms/u-boot-sam460ex': checked out '60b3916f33e617a815973c5a6df77055b2e3a588'
Submodule path 'qemu/roms/vbootrom': checked out '1287b6e42e839ba2ab0f06268c5b53ae60df3537'
Submodule path 'qemu/subprojects/libvfio-user': checked out '1305f161b7e0dd2c2a420c17efcb0bd49b94dad4'
Submodule path 'qemu/tests/fp/berkeley-softfloat-3': checked out 'b64af41c3276f97f0e181920400ee056b9c88037'
Submodule path 'qemu/tests/fp/berkeley-testfloat-3': checked out '5a59dcec19327396a011a17fd924aed4fec416b3'
Submodule path 'qemu/tests/lcitool/libvirt-ci': checked out '1c3e16cae38407d0782dc94080d1104106456fa4'
Submodule path 'qemu/ui/keycodemapdb': checked out 'c2c09b3f4c1d7688711e6501338ac88017d4341c'
Failed to recurse into submodule path 'qemu/roms/edk2'
Submodule path 'spike': checked out '6077cf88807029e2bbe3aa4c935c7e72c3d8d7ce'
Failed to recurse into submodule path 'qemu'

@TommyMurphyTM1234
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TommyMurphyTM1234 commented Feb 17, 2023 •
edited
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In spite of the previous errors that I mentioned, the toolchain build succeeds.
When I put your example code:

_start:
andi t0, t0, 0 # Clear register t0
andi t1, t1, 0 # Clear register t1
andi t2, t2, 0 # Clear register t2
andi t3, t3, 0 # Clear register t3
andi t4, t4, 0 # Clear register t3
li t0, 394 # Load register t0
li t1, 19 # Load register t1
#Muldiv
mul t2, t0, t1
#FP single and Double precision
fcvt.s.w ft0, t2
fcvt.d.w ft1, t1
fdiv.d ft2, ft1, ft0
fadd.s ft3, ft0, ft2
fcvt.w.s t4, ft3
#Psimd
radd16 t3, t2, t4

into the file test.S and then compile it to object file, it works fine and then disassembles back OK:

riscv64-unknown-linux-gnu-gcc -march=rv64imafd_zpn -c test.S
riscv64-unknown-linux-gnu-objdump -d test.o

test.o:     file format elf64-littleriscv

Disassembly of section .text:

0000000000000000 <start>:
   0:	0002f293          	andi	t0,t0,0
   4:	00037313          	andi	t1,t1,0
   8:	0003f393          	andi	t2,t2,0
   c:	000e7e13          	andi	t3,t3,0
  10:	000efe93          	andi	t4,t4,0
  14:	18a00293          	li	t0,394
  18:	01300313          	li	t1,19
  1c:	026283b3          	mul	t2,t0,t1
  20:	d003f053          	fcvt.s.w	ft0,t2
  24:	d20300d3          	fcvt.d.w	ft1,t1
  28:	1a00f153          	fdiv.d	ft2,ft1,ft0
  2c:	002071d3          	fadd.s	ft3,ft0,ft2
  30:	c001fed3          	fcvt.w.s	t4,ft3
  34:	01d38e77          	radd16	t3,t2,t4

Did you definitely pass -march=rv64imafd_zpn?

@infini8-13
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Hi @TommyMurphyTM1234, that's wonderful! Yes I did pass -march=rv64imafd_zpn, but I had configured it wrong. I'll build now and update here about the same.

@TommyMurphyTM1234
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Ok, I'll close this issue now so.

@infini8-13
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Hi @TommyMurphyTM1234 and @pz9115, it works! Thanks for your brilliant help.

@TommyMurphyTM1234 TommyMurphyTM1234 mentioned this issue Jul 10, 2023
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@TommyMurphyTM1234 @pz9115 @infini8-13