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Tons of more debug capabilities.(0.26.0)

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This commit is contained in:
Johannes Findeisen 2025-10-06 05:53:30 +02:00
commit a014b963c2
5 changed files with 461 additions and 21 deletions
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24
src/vm.h
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@ -70,6 +70,19 @@ struct VM {
int trace_enabled; // when non-zero, print executed ops and stack
int repl_on_error; // when non-zero, enter REPL on runtime error (preserve stack)
int (*on_error_repl)(struct VM *vm); // optional hook to run REPL on error
/* --- Debugger state --- */
int debug_step_mode; // 0 none, 1 step, 2 next, 3 finish
int debug_step_target_fp; // target frame pointer for next/finish
long long debug_step_start_ic; // instruction count snapshot when step/next requested
int debug_stop_requested; // force a pause at loop top
struct {
char *file; // strdup'ed file path
int line; // 1-based line
int active; // 1 if active
} breakpoints[64];
int break_count; // number of active breakpoints
};
typedef struct VM VM;
@ -90,6 +103,17 @@ void vm_dump_globals(VM *vm);
// run entry Bytecode (pushes first frame)
void vm_run(VM *vm, Bytecode *entry);
/* --- Debugger API --- */
void vm_debug_reset(VM *vm);
int vm_debug_add_breakpoint(VM *vm, const char *file, int line); // returns id >=0 or -1
int vm_debug_delete_breakpoint(VM *vm, int id); // returns 1 on success
void vm_debug_clear_breakpoints(VM *vm);
void vm_debug_list_breakpoints(VM *vm);
void vm_debug_request_step(VM *vm);
void vm_debug_request_next(VM *vm);
void vm_debug_request_finish(VM *vm);
void vm_debug_request_continue(VM *vm);
static inline int opcode_is_valid(int op) {
return op >= OP_NOP && op <= OP_EXIT; // all current opcodes
}