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fix: CSPRNG on Windows, and a window's first title is the package's app name

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Crypto.random_* and Uuid.* read /dev/urandom, which Windows lacks, so every
byte was zero; the Windows target now calls RtlGenRandom (advapi32).
ludicc takes --title, which ludic build/run/bundle pass from package.ludic's
app name, so rt_init opens the window under that name instead of the
program name.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-17 16:22:05 +03:00
parent 28f661c36f
commit 7f9f8de08a
9 changed files with 33592 additions and 33300 deletions
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9
selfhost/main.ludic
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@ -135,6 +135,7 @@ entry {
var save = false # --save-temps: keep the intermediate .ll
var run = false # compile then execute the result
var target = null # --target <triple>: null means the host
var title = null # --title <name>: game_title() - the window's first title - instead of the program name
var gui = false # --gui: a Windows GUI-subsystem program (no console behind the window)
var links = new []pointer # --link <file>: an extra input to the link (a compiled resource)
g_coverage = false # --coverage: instrument each statement with a per-line hit counter
@ -153,6 +154,7 @@ entry {
else if a == "--coverage" { g_coverage = true }
else if a == "--target" { ai += 1; if ai < arg_count() { target = arg(ai) } }
else if a == "--gui" { gui = true }
else if a == "--title" { ai += 1; if ai < arg_count() { title = arg(ai) } }
else if a == "--link" { ai += 1; if ai < arg_count() { push(links, arg(ai)) } }
else if a == "-o" { ai += 1; if ai < arg_count() { out = arg(ai) } }
else if a[0] == '-' {
@ -178,7 +180,10 @@ entry {
g_parse_file = path # for the compiler's own file:line diagnostics
lex(src)
parse_program()
g_prog_user_end = len(prog) # decls from the user's source; runtime splice appends after
g_prog_user_end = len(prog)
# `ludic build` passes the package's `app name`, so the window opens under the name the
# player knows rather than the `program` name and is not retitled a moment later
if (title != null) and (len(title) > 0) { g_game_name = title } # decls from the user's source; runtime splice appends after
# --fmt is the doc-check gate: reaching here means it lexed and parsed. A parse
# error would already have exited nonzero, so a clean parse exits 0. (Canonical
@ -281,6 +286,8 @@ entry {
}
# Process.* links the child-process layer: posix_spawn from libSystem on macOS,
# CreateProcessW from kernel32 on Windows.
# Crypto.random_* / Uuid.* read RtlGenRandom on Windows, which advapi32 exports
if g_target_win and g_uses_cryptort { cmd = `{cmd} -ladvapi32` }
if g_uses_process {
if g_target_win { cmd = `{cmd} {join_path(home, "runtime/native/process_win.ll")}` }
else { cmd = `{cmd} {join_path(home, "runtime/native/process.ll")}` }