move to codebase-defined entry point style, with basic command line argument parsing, capture, thread-ctx, and other boilerplate deduplicated in the base layer's entry point definition

src/os/core/os_core.h

@@ -165,11 +165,6 @@ internal String8 os_string_from_system_path(Arena *arena, OS_SystemPath path);
 
 internal String8List os_string_list_from_argcv(Arena *arena, int argc, char **argv);
 
-////////////////////////////////
-//~ rjf: Process Helpers (Helper, Implemented Once)
-
-internal void os_relaunch_self(void);
-
 ////////////////////////////////
 //~ rjf: Filesystem Helpers (Helpers, Implemented Once)
 
@@ -204,7 +199,7 @@ internal void os_condition_variable_broadcast(OS_Handle cv);
 ////////////////////////////////
 //~ rjf: @os_hooks Main Initialization API (Implemented Per-OS)
 
-internal void os_init(int argc, char **argv);
+internal void os_init(void);
 
 ////////////////////////////////
 //~ rjf: @os_hooks Memory Allocation (Implemented Per-OS)
@@ -234,7 +229,6 @@ internal U64          os_logical_core_count(void);
 ////////////////////////////////
 //~ rjf: @os_hooks Process & Thread Info (Implemented Per-OS)
 
-internal String8List os_get_command_line_arguments(void);
 internal S32         os_get_pid(void);
 internal S32         os_get_tid(void);
 internal String8List os_get_environment(void);
@@ -370,4 +364,15 @@ internal void os_safe_call(OS_ThreadFunctionType *func, OS_ThreadFunctionType *f
 internal OS_Guid os_make_guid(void);
 internal String8 os_string_from_guid(Arena *arena, OS_Guid guid);
 
+////////////////////////////////
+//~ rjf: @os_hooks Entry Points (Implemented Per-OS)
+
+// NOTE(rjf): The implementation of `os_core` will define low-level entry
+// points if BUILD_ENTRY_DEFINING_UNIT is defined to 1. These will call
+// into the standard codebase program entry points, named "entry_point".
+
+#if BUILD_ENTRY_DEFINING_UNIT
+internal void entry_point(CmdLine *cmdline);
+#endif
+
 #endif // OS_CORE_H