lgcosta
5a7382185b
The VM harness (tests/vm/) builds and exercises the tools on real Debian and Alpine guests, driving the serial console (no sshd/cloud-init dependency). Results on Debian 12 (glibc 2.36, gcc 12.2): 12/12 checks pass, 0 warnings with -Wall -Wextra, including a real 128M -> 256M resize and the rollback save/restore/reject paths. Results on Alpine 3.20 (musl 1.2.5): the build cannot start. configure stops at "reiserfsprogs requires a method to add printf modifiers" because reiserfscore/prints.c depends on glibc's register_printf_specifier(3) and <printf.h>, which musl does not provide. This is pre-existing and out of scope here; measured at 341 use sites across 20+ files, all routed through reiserfs_warning()/reiserfs_info(). Documented in tests/vm/RESULTS.md. Fix the one real defect the harness surfaced: fsck/semantic_check.c: check_check_regular_file() is called with NULL for new_ih (line 466), so the block that would fill *new_ih is unreachable and check_semantic_pass() never returns RELOCATED through that path. The "case RELOCATED:" arm still reads relocated_ih.ih_key, which gcc 12.2 reports as "may be used uninitialized" (-Wmaybe-uninitialized); gcc 16 does not, because it proves the path dead. Zero-initialise the struct and say why. Verified: 0 warnings on gcc 12.2 after the change, and the Debian battery stays at 12/12.
91 lines
2.4 KiB
Bash
Executable File
91 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# Prepara o ambiente de VMs: imagens, seed e maquinas virtuais.
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# Requer: libvirt (qemu:///session), virt-install, qemu-img, mkisofs.
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set -e
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HERE=$(cd "$(dirname "$0")" && pwd)
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WORK=${WORK:-/var/tmp/vmtest}
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CONN=qemu:///session
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mkdir -p "$WORK"
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cd "$WORK"
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fetch() {
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url=$1; out=$2
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[ -s "$out" ] && { echo " $out ja existe"; return; }
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echo " baixando $out"
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curl -fsSL -o "$out.part" "$url"
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mv "$out.part" "$out"
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}
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echo "== imagens =="
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fetch https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-genericcloud-amd64.qcow2 debian.qcow2
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fetch https://dl-cdn.alpinelinux.org/alpine/v3.20/releases/cloud/nocloud_alpine-3.20.3-x86_64-bios-cloudinit-r0.qcow2 alpine.qcow2
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echo "== redimensionando =="
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for img in debian.qcow2 alpine.qcow2; do
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size=$(qemu-img info --output=json "$img" | grep -oP '"virtual-size":\s*\K[0-9]+')
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if [ "${size:-0}" -lt 8589934592 ]; then
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qemu-img resize "$img" 8G
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else
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echo " $img ja tem 8G"
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fi
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done
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echo "== disco de dados (fontes + script de teste) =="
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if [ ! -s data.img ]; then
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dd if=/dev/zero of=data.img bs=1M count=8 status=none
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mkfs.ext4 -q -F data.img
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fi
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echo "== seed cloud-init =="
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cat > user-data <<'EOF'
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#cloud-config
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hostname: rfs-test
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ssh_pwauth: true
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disable_root: false
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users:
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- name: root
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lock_passwd: false
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plain_text_passwd: rfstest
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chpasswd:
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expire: false
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EOF
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cat > meta-data <<'EOF'
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instance-id: rfs-test-1
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local-hostname: rfs-test
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EOF
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cat > network-config <<'EOF'
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version: 2
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ethernets:
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eth0:
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dhcp4: true
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EOF
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rm -f seed.iso
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mkisofs -output seed.iso -volid cidata -joliet -rock \
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user-data meta-data network-config >/dev/null 2>&1
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echo "== definindo VMs =="
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define_vm() {
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name=$1; img=$2; variant=$3; mem=$4
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if virsh -c "$CONN" dominfo "$name" >/dev/null 2>&1; then
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echo " $name ja existe"
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return
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fi
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virt-install -c "$CONN" \
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--name "$name" \
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--memory "$mem" --vcpus 2 \
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--disk "path=$WORK/$img,format=qcow2,bus=virtio" \
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--disk "path=$WORK/seed.iso,device=cdrom" \
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--os-variant "$variant" \
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--network user,model=virtio \
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--graphics none --console pty \
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--import --noautoconsole >/dev/null
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echo " criada: $name"
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}
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define_vm rfs-debian debian.qcow2 debian12 2048
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define_vm rfs-alpine alpine.qcow2 alpinelinux3.20 1024
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echo
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echo "Pronto. Use tests/vm/run_in_vm.sh <vm> para testar." |