d0f7acf9eb
An x86-64 operating system built from xv6, now largely rewritten: SMP, a copy-on-write root filesystem (SchFS), PCI/USB/virtio drivers, a TTF rasteriser, and a Linux-numbered syscall ABI. No history before this point -- the tree was never under version control. This commit exists so the rename that follows has something to undo to.
87 lines
2.9 KiB
PowerShell
87 lines
2.9 KiB
PowerShell
# Draw on /dev/fb0 and photograph the result.
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#
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# bootcheck -Fb proves fbinfo *ran* and that the numbers it read back are the
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# ones the bootloader programmed. It cannot prove the pixels landed where they
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# were meant to: a framebuffer written with the wrong stride still reports
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# every byte accepted, and the only symptom is a picture that shears
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# progressively down the screen. That is a thing you have to look at.
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#
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# tools\fbshot.ps1 gradient through mmap
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# tools\fbshot.ps1 -Mode bars colour bars through write()
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param(
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[ValidateSet('fill', 'bars')]
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[string]$Mode = 'fill',
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[int]$BootSeconds = 20,
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[string]$Qemu = "$env:USERPROFILE\scoop\apps\qemu\current\qemu-system-x86_64.exe"
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)
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$ErrorActionPreference = 'Stop'
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$root = Split-Path $PSScriptRoot -Parent
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$hda = Join-Path $root 'schunix.img'
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$hdb = Join-Path $root 'build\fs.img'
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$log = Join-Path $root 'build\fbshot.log'
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$ppm = Join-Path $root "build\fb-$Mode.ppm"
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Remove-Item -Force $log, $ppm -ErrorAction SilentlyContinue
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$monPort = 55556 # not crashshot's 55555, so the two can run back to back
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$psi = New-Object System.Diagnostics.ProcessStartInfo
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$psi.FileName = $Qemu
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$psi.Arguments = @(
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"-drive file=`"$hda`",format=raw,index=0,media=disk"
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"-drive file=`"$hdb`",format=raw,index=1,media=disk"
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'-m 1G -smp 1 -cpu qemu64,+rdtscp -machine pc-i440fx-9.2'
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'-display none'
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"-chardev stdio,id=c0,logfile=`"$log`""
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'-serial chardev:c0'
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"-monitor tcp:127.0.0.1:$monPort,server,nowait"
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) -join ' '
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$psi.RedirectStandardInput = $true
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$psi.UseShellExecute = $false
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Write-Host "==> booting" -ForegroundColor Cyan
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$p = [System.Diagnostics.Process]::Start($psi)
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function Send-Line($text) {
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foreach ($ch in ($text + "`n").ToCharArray()) {
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$p.StandardInput.Write($ch)
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$p.StandardInput.Flush()
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Start-Sleep -Milliseconds 30 # serial has no flow control
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}
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}
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try {
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Start-Sleep -Seconds $BootSeconds
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Write-Host " > fbinfo $Mode" -ForegroundColor DarkGray
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Send-Line "fbinfo $Mode"
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Start-Sleep -Seconds 8 # 1.9 MB a pixel at a time is not fast
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Write-Host "==> capturing the framebuffer" -ForegroundColor Cyan
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$client = New-Object System.Net.Sockets.TcpClient('127.0.0.1', $monPort)
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$writer = New-Object System.IO.StreamWriter($client.GetStream())
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$writer.AutoFlush = $true
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Start-Sleep -Milliseconds 500
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$writer.WriteLine("screendump $ppm")
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Start-Sleep -Seconds 2
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$writer.WriteLine('quit')
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Start-Sleep -Milliseconds 500
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$client.Close()
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} finally {
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if (-not $p.HasExited) { $p.Kill() }
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Start-Sleep -Milliseconds 800
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}
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if (Test-Path $log) {
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$text = Get-Content $log -Raw
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$idx = $text.IndexOf('fbinfo')
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if ($idx -ge 0) { Write-Host $text.Substring($idx) }
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}
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if (Test-Path $ppm) {
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Write-Host "==> $ppm ($((Get-Item $ppm).Length) bytes)" -ForegroundColor Green
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} else {
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Write-Host 'FAIL: no screendump was produced' -ForegroundColor Red
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exit 1
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}
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