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Message-ID: <32b3358903bf8ba408812a2636f39a275493eb91.camel@gmail.com>
Date: Fri, 29 Mar 2024 11:08:27 +0200
From: Eduard Zingerman <eddyz87@...il.com>
To: Pu Lehui <pulehui@...weicloud.com>, bpf@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, netdev@...r.kernel.org
Cc: Björn Töpel <bjorn@...nel.org>, Alexei Starovoitov
 <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko
 <andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu
 <song@...nel.org>, Yonghong Song <yhs@...com>, John Fastabend
 <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, Stanislav
 Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, Jiri Olsa
 <jolsa@...nel.org>,  Mykola Lysenko <mykolal@...com>, Manu Bretelle
 <chantr4@...il.com>, Pu Lehui <pulehui@...wei.com>
Subject: Re: [PATCH bpf-next 0/5] Support local vmtest for riscv64

On Thu, 2024-03-28 at 12:49 +0000, Pu Lehui wrote:
> Patch 1 is to enable cross platform testing for local vmtest. The
> remaining patch adds local vmtest support for riscv64. It relies on
> commit [0] [1] for better regression.
> 
> We can now perform cross platform testing for riscv64 bpf using the
> following command:
> 
> PLATFORM=riscv64 CROSS_COMPILE=riscv64-linux-gnu- \
>     tools/testing/selftests/bpf/vmtest.sh -- \
>         ./test_progs -d \
>             \"$(cat tools/testing/selftests/bpf/DENYLIST.riscv64 \
>                 | cut -d'#' -f1 \
>                 | sed -e 's/^[[:space:]]*//' \
>                       -e 's/[[:space:]]*$//' \
>                 | tr -s '\n' ','\
>             )\"
> 
> The test platform is x86_64 architecture, and the versions of relevant
> components are as follows:
>     QEMU: 8.2.0
>     CLANG: 17.0.6 (align to BPF CI)
>     OpenSBI: 1.3.1 (default by QEMU)
>     ROOTFS: ubuntu jammy (generated by [2])
> 
> Link: https://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git/commit/?id=ea6873118493 [0]
> Link: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=443574b033876c85 [1]
> Link: https://github.com/libbpf/ci/blob/main/rootfs/mkrootfs_debian.sh [2]

Hello,

I wanted to do a test run for this patch-set but did not figure out
how to build rootfs for riscv64 system.

I modified mkrootfs_debian.sh as below, but build command fails:

$ ./rootfs/mkrootfs_debian.sh -d jammy -a riscv64 -m http://de.archive.ubuntu.com/ubuntu
...
E: Couldn't download http://de.archive.ubuntu.com/ubuntu/dists/jammy/main/binary-riscv64/Packages

Apparently jammy does not have binaries built for riscv64, or I'm failing to find correct mirror.
Could you please provide some instructions on how to prepare rootfs?

Thanks,
Eduard

--

diff --git a/rootfs/mkrootfs_debian.sh b/rootfs/mkrootfs_debian.sh
index dfe957e..1d5b769 100755
--- a/rootfs/mkrootfs_debian.sh
+++ b/rootfs/mkrootfs_debian.sh
@@ -16,6 +16,7 @@ CPUTABLE="${CPUTABLE:-/usr/share/dpkg/cputable}"
 
 deb_arch=$(dpkg --print-architecture)
 distro="bullseye"
+mirror=""
 
 function usage() {
     echo "Usage: $0 [-a | --arch architecture] [-h | --help]
@@ -25,6 +26,7 @@ By default build an image for the architecture of the host running the script.
 
     -a | --arch:    architecture to build the image for. Default (${deb_arch})
     -d | --distro:  distribution to build. Default (${distro})
+    -m | --mirror:  mirror for distribution to build. Default (${mirror})
 "
 }
 
@@ -44,7 +46,7 @@ function qemu_static() {
     # Given a Debian architecture find the location of the matching
     # qemu-${gnu_arch}-static binary.
     gnu_arch=$(debian_to_gnu "${1}")
-    echo "qemu-${gnu_arch}-static"
+    echo "qemu-${gnu_arch}"
 }
 
 function check_requirements() {
@@ -95,7 +97,7 @@ function check_requirements() {
     fi
 }
 
-TEMP=$(getopt  -l "arch:,distro:,help" -o "a:d:h" -- "$@")
+TEMP=$(getopt  -l "arch:,distro:,mirror:,help" -o "a:d:m:h" -- "$@")
 if [ $? -ne 0 ]; then
     usage
 fi
@@ -113,6 +115,10 @@ while true; do
             distro="$2"
             shift 2
             ;;
+        --mirror | -m)
+            mirror="$2"
+            shift 2
+            ;;
         --help | -h)
             usage
             exit
@@ -162,7 +168,8 @@ debootstrap --include="$packages" \
     --arch="${deb_arch}" \
     "$@" \
     "${distro}" \
-    "$root"
+    "$root" \
+    "${mirror}"
 
 qemu=$(which $(qemu_static ${deb_arch}))
 


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