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Add real CPU time tracking to the scheduler: - Thread struct gains cpu_ticks_total and owner_pid fields - Scheduler charges elapsed ticks to outgoing thread at context switch - get_process_cpu_ticks() accessor returns per-PID CPU time including in-flight ticks for currently-running threads - All thread creation paths (create_main_thread, fork, clone) set owner_pid Update btop monitor tab to show real CPU%: - Queries scheduler for per-process CPU ticks each refresh cycle - Computes delta-based CPU% with one decimal place (e.g., "1.5%") - Includes heap_size in per-process memory display (code+heap+stack) Update /proc/[pid]/status CpuTicks to read from scheduler instead of the stale process.cpu_ticks field. Add BWM handoff document (docs/planning/BWM_HANDOFF.md) describing architecture for replacing kernel terminal manager with userspace window manager. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add give_back_display syscall (432) that reactivates the kernel terminal manager after userspace releases the display. This enables crash recovery: when BWM dies, init calls give_back_display before respawning. Update sys_fbmmap to return full-screen mapping when userspace has taken over the display via take_over_display, and left-pane-only otherwise. Update init to spawn BWM as primary UI with crash recovery: - Spawns /bin/bwm instead of /bin/bsh directly - Falls back to /bin/bsh after MAX_RAPID_FAILURES BWM crashes - Calls give_back_display on BWM exit to restore kernel terminal Add libbreenix::graphics::give_back_display() wrapper. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
… switch Adds tracing hooks to ARM64 code paths so SYSCALL_TOTAL, TIMER_TICK_TOTAL, and CTX_SWITCH_TOTAL counters show real values on ARM64 (previously always 0). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
BWM Window Manager: - Render BWM on right half only (per-process display ownership via has_display_ownership flag on Process struct) - Left pane reserved for graphics demos (bounce), right pane for BWM - Flush copies offset by x_offset for correct framebuffer positioning - Match kernel terminal_manager colors and tab layout exactly - Font scale 1 for terminal content (compact ~80-col), scale 2 for tabs - Add separator line, padding, and proper terminal area calculation - Fix stair-stepping newlines (LF now implies CR) - Add TIOCSWINSZ to inform PTY children of terminal dimensions - Add mouse click tab switching (poll mouse_state syscall) - Add hit_test_tab_bar for click-to-tab-switch support Kernel fixes: - PTY TCSETS now updates line discipline (was only updating pair.termios, so raw mode never took effect for input processing) - F-keys routed to userspace as VT100 escape sequences when display is inactive (both ARM64 keycode_to_escape_seq and x86_64 scancode_to_fkey_escape) - sys_get_mouse_pos extended to return button state ([x, y, buttons]) - sys_take_over_display sets per-process has_display_ownership flag New programs: - fart: FM audio synthesis tool for Breenix audio subsystem - synth module in libbreenix for audio waveform generation Co-Authored-By: Ryan Breen <rbreen@gmail.com> Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
TCSETSnow updates the line discipline, so raw mode actually works — shell input and echo functional in BWM.mouse_state()syscall exposes button state; BWM polls for clicks and switches tabs on hit.libbreenix::synthmodule.Test plan
./run.sh— verify BWM renders on right half, bounce demo works on leftbouncefrom BWM shell — verify left-pane graphics demo doesn't crash./docker/qemu/run-aarch64-boot-test-native.sh— verify boot tests pass🤖 Generated with Claude Code