Example #1
0
BIF_RETTYPE loaded_0(BIF_ALIST_0)
{
    Eterm previous = NIL;
    Eterm* hp;
    int i;
    int j = 0;
    
    for (i = 0; i < module_code_size(); i++) {
	if (module_code(i) != NULL &&
	    ((module_code(i)->code_length != 0) ||
	     (module_code(i)->old_code_length != 0))) {
	    j++;
	}
    }
    if (j > 0) {
	hp = HAlloc(BIF_P, j*2);

	for (i = 0; i < module_code_size(); i++) {
	    if (module_code(i) != NULL &&
		((module_code(i)->code_length != 0) ||
		 (module_code(i)->old_code_length != 0))) {
		previous = CONS(hp, make_atom(module_code(i)->module), 
				previous);
		hp += 2;
	    }
	}
    }
    BIF_RET(previous);
}
Example #2
0
BIF_RETTYPE loaded_0(BIF_ALIST_0)
{
    ErtsCodeIndex code_ix = erts_active_code_ix();
    Module* modp;
    Eterm previous = NIL;
    Eterm* hp;
    int i;
    int j = 0;

    for (i = 0; i < module_code_size(code_ix); i++) {
	if ((modp = module_code(i, code_ix)) != NULL &&
	    ((modp->curr.code_length != 0) ||
	     (modp->old.code_length != 0))) {
	    j++;
	}
    }
    if (j > 0) {
	hp = HAlloc(BIF_P, j*2);

	for (i = 0; i < module_code_size(code_ix); i++) {
	    if ((modp=module_code(i,code_ix)) != NULL &&
		((modp->curr.code_length != 0) ||
		 (modp->old.code_length != 0))) {
		previous = CONS(hp, make_atom(modp->module), previous);
		hp += 2;
	    }
	}
    }
    BIF_RET(previous);
}
Example #3
0
static int set_break(Eterm mfa[3], int specified, 
		     Binary *match_spec, Eterm break_op, 
		     enum erts_break_op count_op, Eterm tracer_pid)
{
    Module *modp;
    int num_processed = 0;
    if (!specified) {
	/* Find and process all modules in the system... */
	int current;
	int last = module_code_size();
	for (current = 0; current < last; current++) {
	    modp = module_code(current);
	    ASSERT(modp != NULL);
	    num_processed += 
		set_module_break(modp, mfa, specified, 
				 match_spec, break_op, count_op, 
				 tracer_pid);
	}
    } else {
	/* Process a single module */
	if ((modp = erts_get_module(mfa[0])) != NULL) {
	    num_processed += 
		set_module_break(modp, mfa, specified, 
				 match_spec, break_op, count_op, 
				 tracer_pid);
	}	
    }
    return num_processed;
}
Example #4
0
static int clear_break(Eterm mfa[3], int specified, Uint break_op)
{
    int num_processed = 0;
    Module *modp;

    if (!specified) {
	/* Iterate over all modules */
	int current;
	int last = module_code_size();

	for (current = 0; current < last; current++) {
	    modp = module_code(current);
	    ASSERT(modp != NULL);
	    num_processed += clear_module_break(modp, mfa, specified, break_op);
	}
    } else {
	/* Process a single module */
	if ((modp = erts_get_module(mfa[0])) != NULL) {
	    num_processed += 
		clear_module_break(modp, mfa, specified, break_op);
	}	
    }
    return num_processed;
}
Example #5
0
void
erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
{
    ErtsCodeIndex code_ix = erts_active_code_ix();
    Uint max_funcs = 0;
    int current;
    int max_modules = module_code_size(code_ix);
    int num_modules = 0;
    Module* modp;
    Module** module;
    Uint i;

    module = (Module **) Alloc(max_modules*sizeof(Module *));
    num_modules = 0;
    for (current = 0; current < max_modules; current++) {
	modp = module_code(current, code_ix);
	if (modp->curr.code_hdr) {
	    max_funcs += modp->curr.code_hdr->num_functions;
	    module[num_modules++] = modp;
	}
    }

    f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction));
    i = 0;
    for (current = 0; current < num_modules; current++) {
	BeamCodeHeader* code_hdr = module[current]->curr.code_hdr;
	BeamInstr* code;
	Uint num_functions = (Uint)(UWord) code_hdr->num_functions;
	Uint fi;

	if (specified > 0) {
	    if (mfa[0] != make_atom(module[current]->module)) {
		/* Wrong module name */
		continue;
	    }
	}

	for (fi = 0; fi < num_functions; fi++) {
	    BeamInstr* pc;
	    int wi;

	    code = code_hdr->functions[fi];
	    ASSERT(code[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
	    pc = code+5;
	    if (erts_is_native_break(pc)) {
		continue;
	    }
	    if (is_nil(code[3])) { /* Ignore BIF stub */
		continue;
	    }
	    for (wi = 0;
		 wi < specified && (Eterm) code[2+wi] == mfa[wi];
		 wi++) {
		/* Empty loop body */
	    }
	    if (wi == specified) {
		/* Store match */
		f->matching[i].pc = pc;
		f->matching[i].mod = module[current];
		i++;
	    }
	}
    }
    f->matched = i;
    Free(module);
}
Example #6
0
File: break.c Project: easemob/otp
void
loaded(int to, void *to_arg)
{
    int i;
    int old = 0;
    int cur = 0;
    BeamInstr* code;
    Module* modp;
    ErtsCodeIndex code_ix;

    code_ix = erts_active_code_ix();
    erts_rlock_old_code(code_ix);

    /*
     * Calculate and print totals.
     */
    for (i = 0; i < module_code_size(code_ix); i++) {
	if ((modp = module_code(i, code_ix)) != NULL &&
	    ((modp->curr.code_length != 0) ||
	     (modp->old.code_length != 0))) {
	    cur += modp->curr.code_length;
	    if (modp->old.code_length != 0) {
		old += modp->old.code_length;
	    }
	}
    }
    erts_print(to, to_arg, "Current code: %d\n", cur);
    erts_print(to, to_arg, "Old code: %d\n", old);
    
    /*
     * Print one line per module.
     */

    for (i = 0; i < module_code_size(code_ix); i++) {
	modp = module_code(i, code_ix);
	if (!ERTS_IS_CRASH_DUMPING) {
	    /*
	     * Interactive dump; keep it brief.
	     */
	    if (modp != NULL &&
	    ((modp->curr.code_length != 0) ||
	     (modp->old.code_length != 0))) {
		erts_print(to, to_arg, "%T", make_atom(modp->module));
		cur += modp->curr.code_length;
		erts_print(to, to_arg, " %d", modp->curr.code_length );
		if (modp->old.code_length != 0) {
		    erts_print(to, to_arg, " (%d old)",
			       modp->old.code_length );
		    old += modp->old.code_length;
		}
		erts_print(to, to_arg, "\n");
	    }
	} else {
	    /*
	     * To crash dump; make it parseable.
	     */
	    if (modp != NULL &&
		((modp->curr.code_length != 0) ||
		 (modp->old.code_length != 0))) {
		erts_print(to, to_arg, "=mod:");
		erts_print(to, to_arg, "%T", make_atom(modp->module));
		erts_print(to, to_arg, "\n");
		erts_print(to, to_arg, "Current size: %d\n",
			   modp->curr.code_length);
		code = modp->curr.code;
		if (code != NULL && code[MI_ATTR_PTR]) {
		    erts_print(to, to_arg, "Current attributes: ");
		    dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
				    code[MI_ATTR_SIZE]);
		}
		if (code != NULL && code[MI_COMPILE_PTR]) {
		    erts_print(to, to_arg, "Current compilation info: ");
		    dump_attributes(to, to_arg, (byte *) code[MI_COMPILE_PTR],
				    code[MI_COMPILE_SIZE]);
		}

		if (modp->old.code_length != 0) {
		    erts_print(to, to_arg, "Old size: %d\n", modp->old.code_length);
		    code = modp->old.code;
		    if (code[MI_ATTR_PTR]) {
			erts_print(to, to_arg, "Old attributes: ");
			dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
					code[MI_ATTR_SIZE]);
		    }
		    if (code[MI_COMPILE_PTR]) {
			erts_print(to, to_arg, "Old compilation info: ");
			dump_attributes(to, to_arg, (byte *) code[MI_COMPILE_PTR],
					code[MI_COMPILE_SIZE]);
		    }
		}
	    }
	}
    }
    erts_runlock_old_code(code_ix);
}
Example #7
0
void
erts_bp_match_functions(BpFunctions* f, ErtsCodeMFA *mfa, int specified)
{
    ErtsCodeIndex code_ix = erts_active_code_ix();
    Uint max_funcs = 0;
    int current;
    int max_modules = module_code_size(code_ix);
    int num_modules = 0;
    Module* modp;
    Module** module;
    Uint i;

    module = (Module **) Alloc(max_modules*sizeof(Module *));
    num_modules = 0;
    for (current = 0; current < max_modules; current++) {
	modp = module_code(current, code_ix);
	if (modp->curr.code_hdr) {
	    max_funcs += modp->curr.code_hdr->num_functions;
	    module[num_modules++] = modp;
	}
    }

    f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction));
    i = 0;
    for (current = 0; current < num_modules; current++) {
	BeamCodeHeader* code_hdr = module[current]->curr.code_hdr;
	ErtsCodeInfo* ci;
	Uint num_functions = (Uint)(UWord) code_hdr->num_functions;
	Uint fi;

	if (specified > 0) {
	    if (mfa->module != make_atom(module[current]->module)) {
		/* Wrong module name */
		continue;
	    }
	}

	for (fi = 0; fi < num_functions; fi++) {

	    ci = code_hdr->functions[fi];
	    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
	    if (erts_is_function_native(ci)) {
		continue;
	    }
	    if (is_nil(ci->mfa.module)) { /* Ignore BIF stub */
		continue;
	    }
            switch (specified) {
            case 3:
                if (ci->mfa.arity != mfa->arity)
                    continue;
            case 2:
                if (ci->mfa.function != mfa->function)
                    continue;
            case 1:
                if (ci->mfa.module != mfa->module)
                    continue;
            case 0:
                break;
            }
            /* Store match */
            f->matching[i].ci = ci;
            f->matching[i].mod = module[current];
            i++;
	}
    }
    f->matched = i;
    Free(module);
}