Linux add backtrace, fixing scaling / DPI problems

build.sh

@@ -3,79 +3,10 @@
 mkdir build
 cd build
 
-if [ "$1" = "release" ]; then
+FLAGS="-nostdlib++ -fno-exceptions -fdiagnostics-absolute-paths -g -Wno-writable-strings -I../src -DDEBUG_BUILD=1"
-    profile_flags="-DDEBUG_BUILD=0 -O2"
+# clang -o metaprogram $FLAGS ../src/metaprogram/metaprogram.cpp
-else
+# ./metaprogram
-    profile_flags="-DDEBUG_BUILD=1"
-fi
 
-if [ ! -f "lbaselib.o" ]; then
+I="-I../src/external/SDL/include -I../src/external/lua/src -I../src/external/glad"
-    clang -g -I../src/external/lua/src -I../src/external/glad \
+clang -o te $FLAGS ../src/text_editor/text_editor.cpp $I -lSDL3 -lm -lbacktrace
-        ../src/external/lua/src/lbaselib.c \
+cp te ../data/te
-        ../src/external/lua/src/lctype.c \
-        ../src/external/lua/src/ldo.c \
-        ../src/external/lua/src/lgc.c \
-        ../src/external/lua/src/liolib.c \
-        ../src/external/lua/src/lmem.c \
-        ../src/external/lua/src/lopcodes.c \
-        ../src/external/lua/src/lstate.c \
-        ../src/external/lua/src/ltable.c \
-        ../src/external/lua/src/lundump.c \
-        ../src/external/lua/src/lzio.c \
-        ../src/external/lua/src/lapi.c \
-        ../src/external/lua/src/lcode.c \
-        ../src/external/lua/src/ldblib.c \
-        ../src/external/lua/src/ldump.c \
-        ../src/external/lua/src/llex.c \
-        ../src/external/lua/src/loadlib.c \
-        ../src/external/lua/src/loslib.c \
-        ../src/external/lua/src/lstring.c \
-        ../src/external/lua/src/ltablib.c \
-        ../src/external/lua/src/lutf8lib.c \
-        ../src/external/lua/src/lauxlib.c \
-        ../src/external/lua/src/lcorolib.c \
-        ../src/external/lua/src/ldebug.c \
-        ../src/external/lua/src/lfunc.c \
-        ../src/external/lua/src/linit.c \
-        ../src/external/lua/src/lmathlib.c \
-        ../src/external/lua/src/lobject.c \
-        ../src/external/lua/src/lparser.c \
-        ../src/external/lua/src/lstrlib.c \
-        ../src/external/lua/src/ltm.c \
-        ../src/external/lua/src/lvm.c \
-        ../src/external/glad/glad.c \
-        -c
-fi
-
-if [ ! -f "metaprogram.exe" ]; then
-    clang ../src/metaprogram/metaprogram.cpp ../src/basic/unix.cpp -o metaprogram.exe \
-        -nostdlib++ -fno-exceptions -fdiagnostics-absolute-paths -g \
-        -Wno-writable-strings \
-        -I../src
-fi
-./metaprogram.exe
-
-clang ../src/text_editor/text_editor.cpp ../src/basic/unix.cpp -o te_linux.exe \
-    -nostdlib++ -fno-exceptions -fdiagnostics-absolute-paths -g \
-    $profile_flags \
-    -Wno-writable-strings \
-    -I../src/external/SDL/include \
-    -I../src/external/lua/src \
-    -I../src/external/glad \
-    -I../src/ \
-    -lm \
-    ../src/external/SDL/build/libSDL3.a \
-    lbaselib.o lctype.o ldo.o lgc.o liolib.o lmem.o \
-    lopcodes.o lstate.o ltable.o lundump.o lzio.o lapi.o lcode.o ldblib.o ldump.o \
-    llex.o loadlib.o loslib.o lstring.o ltablib.o lutf8lib.o lauxlib.o lcorolib.o ldebug.o \
-    lfunc.o  linit.o  lmathlib.o  lobject.o  lparser.o  lstrlib.o  ltm.o  lvm.o \
-    glad.o \
-
-
-if [ "$1" = "release" ]; then
-    cp te_linux.exe ../data/te
-    echo written ../data/te
-else
-    cp te_linux.exe ../data/te_debug
-    echo written ../data/te_debug
-fi

src/backup/todo.txt

@@ -28,7 +28,7 @@ Splits:
 
 Linux
 - Add backtrace
-
+- Use DPI well, use as much resolution but scale with DPI
 
 
 Commands TODO:

src/basic/basic_alloc.cpp

@@ -42,6 +42,8 @@ API bool VDecommit(void *p, size_t size) {
 }
 
 #elif OS_LINUX || OS_MAC
+#include <sys/mman.h>
+
 
 API void *VReserve(size_t size) {
     void *result = mmap(0, size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, (off_t)0);

src/basic/basic_os.cpp

@@ -14,11 +14,58 @@
 #include <stdlib.h>
 #include <spawn.h>
 #include <poll.h>
+#include <execinfo.h>
+#include <backtrace.h>
 
 API void (*Error)(const char *, ...);
 
+struct backtrace_state *backtrace_state = NULL;
+
+void os_core_backtrace_error_callback(void *data, const char *msg, int errnum) {
+    Error("libbacktrace error: %s (errnum: %d)\n", msg, errnum);
+}
+
+int os_core_backtrace_print_callback(void *data, uintptr_t pc, const char *filename, int lineno, const char *function) {
+    bool printed = false;
+    if (filename != NULL) {
+        char buffer[512];
+        char *f = realpath(filename, buffer);
+        printf("%s:%d:1: ", f, lineno);
+        printed = true;
+    }
+    if (function != NULL) {
+        printf("%s", function);
+        printed = true;
+    }
+    if (printed) {
+        printf("\n");
+    }
+    return 0;
+}
+
+void os_unix_crash_handler(int signal, siginfo_t* info, void* context) {
+    backtrace_full(backtrace_state, 2, os_core_backtrace_print_callback, os_core_backtrace_error_callback, NULL);
+    exit(1);
+}
+
+void os_unix_register_crash_handler(void) {
+    backtrace_state = backtrace_create_state(NULL, 1, os_core_backtrace_error_callback, NULL);
+
+    struct sigaction sa;
+    sa.sa_sigaction = os_unix_crash_handler;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = SA_RESTART | SA_SIGINFO;
+
+    sigaction(SIGSEGV, &sa, NULL);
+    sigaction(SIGABRT, &sa, NULL);
+    sigaction(SIGBUS, &sa, NULL);
+    sigaction(SIGILL, &sa, NULL);
+    sigaction(SIGFPE, &sa, NULL);
+}
+
 API void InitOS(void (*error_proc)(const char *, ...)) {
     Error = error_proc;
+    os_unix_register_crash_handler();
 }
 
 API String ReadFile(Allocator al, String path) {
@@ -171,9 +218,9 @@ API void Advance(FileIter *it) {
 
         const char *dir_char_ending = it->is_directory ? "/" : "";
         const char *separator = it->path.data[it->path.len - 1] == '/' ? "" : "/";
-        it->relative_path = Format(it->allocator, "%.*s%s%s%s", FmtString(it->path), separator, file->d_name, dir_char_ending);
+        it->relative_path = Format(it->allocator, "%S%s%s%s", it->path, separator, file->d_name, dir_char_ending);
         it->absolute_path = GetAbsolutePath(it->allocator, it->relative_path);
-        if (it->is_directory) it->absolute_path = Format(it->allocator, "%.*s/", FmtString(it->absolute_path));
+        if (it->is_directory) it->absolute_path = Format(it->allocator, "%S/", it->absolute_path);
         it->is_valid = true;
         return;
     }

src/text_editor/buffer.cpp

@@ -1467,13 +1467,11 @@ void InitBuffers() {
     Buffer   *null_buffer   = CreateBuffer(sys_allocator, GetUniqueBufferName(GetWorkingDir(scratch), "console"));
     View     *null_view     = CreateView(null_buffer->id);
     Assert(null_buffer->id == NullBufferID && null_view->id == NullViewID);
-
     TraceBuffer             = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "trace"));
     TraceView               = CreateView(TraceBuffer->id);
     GCInfoBuffer            = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "gc"));
     EventBuffer             = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "events"));
     ScratchBuffer           = BufferOpenFile(GetUniqueBufferName(WorkDir, "scratch"));
-
     EventBuffer->no_history = true;
     GCInfoBuffer->no_history = true;
 }

src/text_editor/commands_bindings.cpp

@@ -125,8 +125,6 @@ void OnCommand(Event event) {
     } else if (IsDocumentSelectionValid()) {
         Assert(ScrollbarSelected.id == -1);
         BSet selected = GetBSet(DocumentSelected);
-
-
         Vec2I mouse = MouseVec2I();
         // Special case for full-screen where we can have document
         // aligned with monitor screen in which case mouse cursor cannot
@@ -134,6 +132,8 @@ void OnCommand(Event event) {
         if (mouse.y == 0 && selected.window->document_rect.min.y == 0) {
             float x, y;
             SDL_GetGlobalMouseState(&x, &y);
+            x = roundf(DPIScale * x);
+            y = roundf(DPIScale * y);
             if (y == 0) {
                 mouse.y = -10;
             }

src/text_editor/event.cpp

@@ -270,11 +270,11 @@ void FillEventWithBasicData(Event *event) {
 
     float xmouse, ymouse;
     SDL_GetMouseState(&xmouse, &ymouse);
-    event->xmouse = (int16_t)xmouse;
+    event->xmouse = (int16_t)roundf(DPIScale * xmouse);
-    event->ymouse = (int16_t)ymouse;
+    event->ymouse = (int16_t)roundf(DPIScale * ymouse);
 
     int xwindow, ywindow;
-    SDL_GetWindowSize(SDLWindow, &xwindow, &ywindow);
+    SDL_GetWindowSizeInPixels(SDLWindow, &xwindow, &ywindow);
     event->xwindow = xwindow;
     event->ywindow = ywindow;
     event->text = "";
@@ -305,8 +305,8 @@ Event TranslateSDLEvent(SDL_Event *input_event) {
 
     case SDL_EVENT_MOUSE_BUTTON_DOWN: {
         SDL_MouseButtonEvent &b = input_event->button;
-        event.xmouse            = (int16_t)b.x;
+        event.xmouse = (int16_t)roundf(DPIScale * b.x);
-        event.ymouse            = (int16_t)b.y;
+        event.ymouse = (int16_t)roundf(DPIScale * b.y);
         event.clicks = b.clicks;
         if (b.button == SDL_BUTTON_LEFT) {
             event.kind   = EVENT_MOUSE_LEFT;
@@ -326,8 +326,8 @@ Event TranslateSDLEvent(SDL_Event *input_event) {
 
     case SDL_EVENT_MOUSE_BUTTON_UP: {
         SDL_MouseButtonEvent &b = input_event->button;
-        event.xmouse            = (int16_t)b.x;
+        event.xmouse = (int16_t)roundf(DPIScale * b.x);
-        event.ymouse            = (int16_t)b.y;
+        event.ymouse = (int16_t)roundf(DPIScale * b.y);
         if (b.button == SDL_BUTTON_LEFT) {
             event.kind = EVENT_MOUSE_LEFT_UP;
         } else if (b.button == SDL_BUTTON_RIGHT) {
@@ -346,8 +346,8 @@ Event TranslateSDLEvent(SDL_Event *input_event) {
     case SDL_EVENT_MOUSE_WHEEL: {
         event.kind             = EVENT_MOUSE_WHEEL;
         SDL_MouseWheelEvent &b = input_event->wheel;
-        event.xmouse           = (int16_t)b.mouse_x;
+        event.xmouse = (int16_t)roundf(DPIScale * b.x);
-        event.ymouse           = (int16_t)b.mouse_y;
+        event.ymouse = (int16_t)roundf(DPIScale * b.y);
         event.xwheel = b.x;
         event.ywheel = b.y;
     } break;

src/text_editor/text_editor.cpp

@@ -7,6 +7,9 @@
 #include "external/glad/glad.h"
 #include "external/stb_truetype.h"
 #include "external/stb_truetype.c"
+#if OS_LINUX
+#define MCO_USE_UCONTEXT
+#endif
 #define MINICORO_IMPL
 #include "external/minicoro.h"
 #define LUA_USE_LONGJMP
@@ -198,7 +201,7 @@ void MainLoop() {
 
         if (it.xwindow == 0 || it.ywindow == 0) {
             int xwindow, ywindow;
-            SDL_GetWindowSize(SDLWindow, &xwindow, &ywindow);
+            SDL_GetWindowSizeInPixels(SDLWindow, &xwindow, &ywindow);
             it.xwindow = xwindow;
             it.ywindow = ywindow;
         }

src/text_editor/title_bar.cpp

@@ -14,7 +14,7 @@ void UpdateDebugBuffer() {
 
     float xmouse, ymouse;
     SDL_GetMouseState(&xmouse, &ymouse);
-    RawAppendf(buffer, "mouse: [%f, %f]\n", xmouse, ymouse);
+    RawAppendf(buffer, "mouse: [%f, %f]\n", roundf(DPIScale * xmouse), roundf(DPIScale * ymouse));
 
     RawAppendf(buffer, "BufferID id = %d\n", main.buffer->id.id);
     RawAppendf(buffer, "String name = %S\n", main.buffer->name);