-/**
- * Stabs support.
+/*
+ * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
*
- * @author Michael Beck
- * @date 11.9.2006
- * @cvsid $Id$
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
*/
+/**
+ * @file
+ * @brief Stabs support.
+ * @author Michael Beck
+ * @date 11.9.2006
+ * @version $Id$
+ */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <assert.h>
+#include "obst.h"
#include "irprog.h"
-#include "entity.h"
#include "irgraph.h"
-#include "typewalk.h"
#include "tv.h"
#include "xmalloc.h"
#include "pmap.h"
typedef struct stabs_handle {
dbg_handle base; /**< the base class */
FILE *f; /**< the file write to */
- entity *cur_ent; /**< current method entity */
+ ir_entity *cur_ent; /**< current method entity */
const be_stack_layout_t *layout; /**< current stack layout */
unsigned next_type_nr; /**< next type number */
pmap *type_map; /**< a map from type to type number */
+ const char *main_file; /**< name of the main source file */
+ const char *curr_file; /**< name of the current source file */
} stabs_handle;
/**
*/
static unsigned get_type_number(stabs_handle *h, ir_type *tp) {
pmap_entry *entry;
+ unsigned num;
if (tp == NULL) {
/* map to the void type */
return 0;
}
entry = pmap_find(h->type_map, tp);
- return entry ? PTR_TO_INT(entry->value) : 0;
+ if (! entry) {
+ num = h->next_type_nr++;
+ pmap_insert(h->type_map, tp, INT_TO_PTR(num));
+ } else {
+ num = PTR_TO_INT(entry->value);
+ }
+ return num;
} /* get_type_number */
/**
- * Assign a stabs type number to a Firm type.
+ * Map a given Type to void by assigned the type number 0.
*/
-static unsigned assign_type_number(stabs_handle *h, ir_type *tp) {
- unsigned num;
- if (tp == NULL) {
- /* map to the void type */
- return 0;
- }
- num = h->next_type_nr++;
- pmap_insert(h->type_map, tp, INT_TO_PTR(num));
- return num;
-} /* assign_type_number */
+static void map_to_void(stabs_handle *h, ir_type *tp) {
+ pmap_insert(h->type_map, tp, INT_TO_PTR(0));
+}
/**
* generate the void type.
* @param h the stabs handle
* @param tp the type
*/
-static void gen_primitive_type(stabs_handle *h, ir_type *tp)
-{
+static void gen_primitive_type(stabs_handle *h, ir_type *tp) {
ir_mode *mode = get_type_mode(tp);
unsigned type_num;
+ SET_TYPE_READY(tp);
if (mode == mode_T) {
- /* jack and FirmJC compiler use mode_T for the void type.
+ /* firmcc, jack and the FirmJC compiler use mode_T for the void type.
Ignore it here as it's name is remapped to "void". */
+ map_to_void(h, tp);
return;
} /* if */
return;
} /* if */
- type_num = assign_type_number(h, tp);
+ type_num = get_type_number(h, tp);
if (mode_is_int(mode)) {
char buf[64];
* @param tp the type
*/
static void gen_enum_type(stabs_handle *h, ir_type *tp) {
- unsigned type_num = assign_type_number(h, tp);
+ unsigned type_num = get_type_number(h, tp);
int i, n;
+ SET_TYPE_READY(tp);
fprintf(h->f, "\t.stabs\t\"%s:T%u=e", get_type_name(tp), type_num);
for (i = 0, n = get_enumeration_n_enums(tp); i < n; ++i) {
ir_enum_const *ec = get_enumeration_const(tp, i);
fprintf(h->f, ";\",%d,0,0,0\n", N_LSYM);
} /* gen_enum_type */
+/**
+ * print a pointer type
+ */
+void print_pointer_type(stabs_handle *h, ir_type *tp, int local) {
+ unsigned type_num = local ? h->next_type_nr++ : get_type_number(h, tp);
+ ir_type *el_tp = get_pointer_points_to_type(tp);
+ unsigned el_num = get_type_number(h, el_tp);
+
+ fprintf(h->f, "%u=*%u", type_num, el_num);
+}
+
/**
* Generates a pointer type
*
- * @param h the stabs handle
+ * @param env the walker environment
* @param tp the type
*/
-static void gen_pointer_type(stabs_handle *h, ir_type *tp) {
- unsigned type_num = assign_type_number(h, tp);
- unsigned el_num = get_type_number(h, get_pointer_points_to_type(tp));
+static void gen_pointer_type(wenv_t *env, ir_type *tp) {
+ stabs_handle *h = env->h;
+ ir_type *el_tp = get_pointer_points_to_type(tp);
+
+ SET_TYPE_READY(tp);
+ if (! IS_TYPE_READY(el_tp))
+ waitq_put(env->wq, el_tp);
- fprintf(h->f, "\t.stabs\t\"%s:t%u=*%u\",%d,0,0,0\n",
- get_type_name(tp), type_num, el_num, N_LSYM);
+ fprintf(h->f, "\t.stabs\t\"%s:t", get_type_name(tp));
+ print_pointer_type(h, tp, 0);
+ fprintf(h->f, "\",%d,0,0,0\n", N_LSYM);
} /* gen_pointer_type */
+/**
+ * print an array type
+ */
+static void print_array_type(stabs_handle *h, ir_type *tp, int local) {
+ ir_type *etp = get_array_element_type(tp);
+ int i, n = get_array_n_dimensions(tp);
+ unsigned type_num = local ? h->next_type_nr++ : get_type_number(h, tp);
+ int *perm;
+
+ fprintf(h->f, "%u=a", type_num);
+ NEW_ARR_A(int, perm, n);
+ for (i = 0; i < n; ++i) {
+ perm[i] = get_array_order(tp, i);
+ }
+
+ for (i = 0; i < n; ++i) {
+ int dim = perm[i];
+
+ if (is_Const(get_array_lower_bound(tp, dim)) && is_Const(get_array_upper_bound(tp, dim))) {
+ long min = get_array_lower_bound_int(tp, dim);
+ long max = get_array_upper_bound_int(tp, dim);
+
+ /* FIXME r1 must be integer type, but seems to work for now */
+ fprintf(h->f, "r1;%ld;%ld;", min, max-1);
+ }
+ }
+
+ type_num = get_type_number(h, etp);
+ fprintf(h->f, "%d", type_num);
+}
+
+/**
+ * Generates an array type
+ *
+ * @param env the walker environment
+ * @param tp the type
+ */
+static void gen_array_type(wenv_t *env, ir_type *tp) {
+ stabs_handle *h = env->h;
+ ir_type *etp = get_array_element_type(tp);
+
+ SET_TYPE_READY(tp);
+ if (! IS_TYPE_READY(etp))
+ waitq_put(env->wq, etp);
+
+ fprintf(h->f, "\t.stabs\t\"%s:t", get_type_name(tp));
+
+ print_array_type(h, tp, 0);
+
+ fprintf(h->f, "\",%d,0,0,0\n", N_LSYM);
+} /* gen_array_type */
+
/**
* Generates a struct/union type
*
- * @param h the stabs handle
+ * @param env the walker environment
* @param tp the type
*/
-static void gen_struct_union_type(stabs_handle *h, ir_type *tp) {
- unsigned type_num = assign_type_number(h, tp);
- int i, n;
- char desc;
+static void gen_struct_union_type(wenv_t *env, ir_type *tp) {
+ stabs_handle *h = env->h;
+ unsigned type_num = get_type_number(h, tp);
+ int i, n;
+ char desc = 's';
+ SET_TYPE_READY(tp);
if (is_Struct_type(tp)) {
desc = 's';
if (get_type_mode(tp) != NULL) {
return;
}
}
- else
+ else if (is_Union_type(tp))
desc = 'u';
- fprintf(h->f, "\t.stabs\t\"%s:T%u=%c%d",
+ fprintf(h->f, "\t.stabs\t\"%s:Tt%u=%c%d",
get_type_name(tp), type_num, desc, get_type_size_bytes(tp));
for (i = 0, n = get_compound_n_members(tp); i < n; ++i) {
- entity *ent = get_compound_member(tp, i);
- ir_type *mtp = get_entity_type(ent);
+ ir_entity *ent = get_compound_member(tp, i);
+ ir_type *mtp = get_entity_type(ent);
int ofs, size;
- ofs = get_entity_offset_bits(ent);
+ if (! IS_TYPE_READY(mtp))
+ waitq_put(env->wq, mtp);
+ ofs = get_entity_offset(ent);
if (is_Struct_type(mtp) && get_type_mode(mtp) != NULL) {
/* this structure is a bitfield, skip */
int i, n;
for (i = 0, n = get_struct_n_members(mtp); i < n; ++i) {
- entity *ent = get_struct_member(mtp, i);
+ ir_entity *ent = get_struct_member(mtp, i);
ir_type *tp = get_entity_type(ent);
int bofs;
type_num = get_type_number(h, tp);
size = get_type_size_bits(tp);
- bofs = ofs + get_entity_offset_bits(ent);
+ bofs = (ofs + get_entity_offset(ent)) * 8 + get_entity_offset_bits_remainder(ent);
/* name:type, bit offset from the start of the struct', number of bits in the element. */
fprintf(h->f, "%s:%u,%d,%d;", get_entity_name(ent), type_num, bofs, size);
}
} else {
/* no bitfield */
- type_num = get_type_number(h, mtp);
- size = get_type_size_bits(mtp);
+ fprintf(h->f, "%s:", get_entity_name(ent));
- /* name:type, bit offset from the start of the struct', number of bits in the element. */
- fprintf(h->f, "%s:%u,%d,%d;", get_entity_name(ent), type_num, ofs, size);
+ if (is_Array_type(mtp)) {
+ /* use a local array definition */
+ print_array_type(h, mtp, 1);
+ } else if (is_Pointer_type(mtp)) {
+ /* use local pointer definition */
+ print_pointer_type(h, mtp, 1);
+ } else {
+ type_num = get_type_number(h, mtp);
+
+ /* name:type, bit offset from the start of the struct', number of bits in the element. */
+ fprintf(h->f, "%u", type_num);
+ }
+ size = get_type_size_bits(mtp);
+ fprintf(h->f, ",%d,%d;", ofs * 8, size);
}
}
fprintf(h->f, ";\",%d,0,0,0\n", N_LSYM);
} /* gen_struct_type */
-/**
- * Generates an array type
- *
- * @param h the stabs handle
- * @param tp the type
- */
-static void gen_array_type(stabs_handle *h, ir_type *tp) {
- unsigned type_num = assign_type_number(h, tp);
- int i, n = get_array_n_dimensions(tp);
- int *perm;
- ir_type *etp;
-
- NEW_ARR_A(int, perm, n);
- for (i = 0; i < n; ++i) {
- perm[i] = get_array_order(tp, i);
- }
- fprintf(h->f, "\t.stabs\t\"%s:t%u=a", get_type_name(tp), type_num);
-
- for (i = 0; i < n; ++i) {
- int dim = perm[i];
- long min = get_array_lower_bound_int(tp, dim);
- long max = get_array_upper_bound_int(tp, dim);
-
- /* FIXME r1 must be integer type, but seems to work for now */
- fprintf(h->f, "r1;%ld;%ld;", min, max-1);
- }
-
- etp = get_array_element_type(tp);
- type_num = get_type_number(h, etp);
- fprintf(h->f, "%d\",%d,0,0,0\n", type_num, N_LSYM);
-} /* gen_array_type */
-
/**
* Generates a method type
*
- * @param h the stabs handle
+ * @param env the walker environment
* @param tp the type
*/
-static void gen_method_type(stabs_handle *h, ir_type *tp) {
- unsigned type_num = assign_type_number(h, tp);
+static void gen_method_type(wenv_t *env, ir_type *tp) {
+ stabs_handle *h = env->h;
+ unsigned type_num = get_type_number(h, tp);
ir_type *rtp = NULL;
unsigned res_type_num;
int i, n = get_method_n_ress(tp);
- if (n > 0)
+ SET_TYPE_READY(tp);
+ if (n > 0) {
rtp = get_method_res_type(tp, 0);
+ if (! IS_TYPE_READY(rtp))
+ waitq_put(env->wq, rtp);
+ }
res_type_num = get_type_number(h, rtp);
fprintf(h->f, "\t.stabs\t\"%s:t%u=f%u", get_type_name(tp), type_num, res_type_num);
/* handle more than one return type */
for (i = 1; i < n; ++i) {
rtp = get_method_res_type(tp, i);
+ if (! IS_TYPE_READY(rtp))
+ waitq_put(env->wq, rtp);
res_type_num = get_type_number(h, rtp);
fprintf(h->f, ",%u", res_type_num);
}
/* fall through */
case tpo_struct:
case tpo_union:
- SET_TYPE_NOT_READY(env->wq, tp);
+ gen_struct_union_type(env, tp);
break;
case tpo_enumeration:
gen_enum_type(env->h, tp);
- SET_TYPE_READY(tp);
break;
case tpo_primitive:
gen_primitive_type(env->h, tp);
- SET_TYPE_READY(tp);
break;
case tpo_method:
+ gen_method_type(env, tp);
+ break;
+
case tpo_array:
- SET_TYPE_NOT_READY(env->wq, tp);
+ gen_array_type(env, tp);
break;
case tpo_pointer:
- /* must construct the pointer type */
- SET_TYPE_NOT_READY(env->wq, tp);
+ gen_pointer_type(env, tp);
break;
case tpo_unknown:
/* the unknown type: ignore */
+ SET_TYPE_READY(tp);
break;
default:
assert(! "Unknown tpop code");
} /* walk_type */
/**
- * check, if a method type can be generated
- */
-static int is_method_type_ready(ir_type *tp)
-{
- int i;
- ir_type *etp;
-
- for (i = get_method_n_ress(tp) - 1; i >= 0; --i) {
- etp = SKIP_PTR(get_method_res_type(tp, i));
-
- if (! IS_TYPE_READY(etp) && (! is_compound_type(etp) || is_Array_type(etp)))
- return 0;
- } /* for */
-
- for (i = get_method_n_params(tp) - 1; i >= 0; --i) {
- etp = SKIP_PTR(get_method_param_type(tp, i));
-
- if (! IS_TYPE_READY(etp) && (! is_compound_type(etp) || is_Array_type(etp)))
- return 0;
- } /* for */
- return 1;
-} /* is_method_type_ready */
-
-/**
- * check, whether a compound type can be generated
+ * generate declaration for all types
*/
-static int is_compound_type_ready(ir_type *tp)
+static void finish_types(wenv_t *env)
{
- int i;
- ir_type *etp;
-
- for (i = get_compound_n_members(tp) - 1; i >= 0; --i) {
- etp = SKIP_PTR(get_entity_type(get_compound_member(tp, i)));
+ waitq *wq = env->wq;
+ ir_type *tp;
- if (! IS_TYPE_READY(etp) && (! is_compound_type(etp) || is_Array_type(etp)))
- return 0;
- } /* for */
- return 1;
-} /* is_compound_type_ready */
+ while (! waitq_empty(wq)) {
+ tp = waitq_get(wq);
+ if (IS_TYPE_READY(tp))
+ continue;
-/**
- * generate declaration for all types
- */
-static void finish_types(stabs_handle *h, waitq *wq)
-{
- ir_type *tp;
-
- while (! waitq_empty(wq)) {
- tp = waitq_get(wq);
-
- switch (get_type_tpop_code(tp)) {
- case tpo_method:
- if (is_method_type_ready(tp)) {
- gen_method_type(h, tp);
- SET_TYPE_READY(tp);
- continue;
- } /* if */
- break;
- case tpo_class:
- case tpo_union:
- case tpo_struct:
- if (is_compound_type_ready(tp)) {
- gen_struct_union_type(h, tp);
- SET_TYPE_READY(tp);
- continue;
- } /* if */
- break;
- case tpo_array:
- if (IS_TYPE_READY(get_array_element_type(tp))) {
- gen_array_type(h, tp);
- SET_TYPE_READY(tp);
- continue;
- } /* if */
- break;
- case tpo_pointer:
- if (IS_TYPE_READY(get_pointer_points_to_type(tp))) {
- gen_pointer_type(h, tp);
- SET_TYPE_READY(tp);
- continue;
- } /* if */
- break;
- default:
- assert(! "Unknown tpop code");
- } /* switch */
-
- /* still not ready, defer type output */
- pdeq_putr(wq, tp);
- } /* while */
+ switch (get_type_tpop_code(tp)) {
+ case tpo_method:
+ gen_method_type(env, tp);
+ break;
+ case tpo_class:
+ case tpo_union:
+ case tpo_struct:
+ gen_struct_union_type(env, tp);
+ break;
+ case tpo_enumeration:
+ gen_enum_type(env->h, tp);
+ break;
+ case tpo_primitive:
+ gen_primitive_type(env->h, tp);
+ break;
+ case tpo_array:
+ gen_array_type(env, tp);
+ break;
+ case tpo_pointer:
+ gen_pointer_type(env, tp);
+ break;
+ case tpo_unknown:
+ /* the unknown type: ignore */
+ SET_TYPE_READY(tp);
+ break;
+ default:
+ assert(! "Unknown tpop code");
+ } /* switch */
+ } /* while */
} /* finish_types */
/**
env.h = h;
env.wq = new_waitq();
type_walk(NULL, walk_type, &env);
- finish_types(h, env.wq);
+ finish_types(&env);
del_waitq(env.wq);
} /* gen_types */
*/
static void stabs_so(dbg_handle *handle, const char *filename) {
stabs_handle *h = (stabs_handle *)handle;
+ h->main_file = h->curr_file = filename;
fprintf(h->f, "\t.stabs\t\"%s\",%d,0,0,.Ltext0\n", filename, N_SO);
} /* stabs_so */
+/**
+ * end an include file
+ */
+static void stabs_include_end(dbg_handle *handle) {
+ stabs_handle *h = (stabs_handle *)handle;
+ h->curr_file = h->main_file;
+} /* stabs_include_end */
+
+/**
+ * start an include file
+ */
+static void stabs_include_begin(dbg_handle *handle, const char *filename) {
+ stabs_handle *h = (stabs_handle *)handle;
+ if (h->main_file != h->curr_file)
+ stabs_include_end(handle);
+ h->curr_file = filename;
+ fprintf(h->f, "\t.stabs\t\"%s\",%d,0,0,0\n", filename, N_SOL);
+} /* stabs_include_begin */
+
/**
* Main Program
*/
/**
* dump the stabs for a method begin
*/
-static void stabs_method_begin(dbg_handle *handle, entity *ent, const be_stack_layout_t *layout) {
+static void stabs_method_begin(dbg_handle *handle, ir_entity *ent, const be_stack_layout_t *layout) {
stabs_handle *h = (stabs_handle *)handle;
ir_type *mtp, *rtp;
unsigned type_num;
unsigned type_num = get_type_number(h, ptp);
char buf[16];
int ofs = 0;
- entity *stack_ent;
+ ir_entity *stack_ent;
if (! name) {
snprintf(buf, sizeof(buf), "arg%d", i);
it transmitted on the stack, else in a register */
stack_ent = layout->param_map[i];
if (stack_ent) {
- ofs = get_entity_offset_bytes(stack_ent) + between_size;
+ ofs = get_entity_offset(stack_ent) + between_size;
+ }
+ fprintf(h->f, "\t.stabs\t\"%s:p", name);
+ if (is_Array_type(ptp)) {
+ /* use a local array definition */
+ print_array_type(h, ptp, 1);
+ } else if (is_Pointer_type(ptp)) {
+ /* use local pointer definition */
+ print_pointer_type(h, ptp, 1);
+ } else {
+ type_num = get_type_number(h, ptp);
+
+ /* name:type, bit offset from the start of the struct', number of bits in the element. */
+ fprintf(h->f, "%u", type_num);
}
- fprintf(h->f, "\t.stabs\t\"%s:p%u\",%d,0,0,%d\n", name, type_num, N_PSYM, ofs);
+
+ fprintf(h->f, "\",%d,0,0,%d\n", N_PSYM, ofs);
}
} /* stabs_method_begin */
*/
static void stabs_method_end(dbg_handle *handle) {
stabs_handle *h = (stabs_handle *)handle;
- entity *ent = h->cur_ent;
+ ir_entity *ent = h->cur_ent;
const be_stack_layout_t *layout = h->layout;
const char *ld_name = get_entity_ld_name(ent);
int i, n, frame_size;
/* create entries for automatic variables on the stack */
frame_size = get_type_size_bytes(layout->frame_type);
for (i = 0, n = get_compound_n_members(layout->frame_type); i < n; ++i) {
- entity *ent = get_compound_member(layout->frame_type, i);
+ ir_entity *ent = get_compound_member(layout->frame_type, i);
ir_type *tp;
int ofs;
unsigned type_num;
if (is_Method_type(tp))
continue;
type_num = get_type_number(h, tp);
- ofs = -frame_size + get_entity_offset_bytes(ent);
+ ofs = -frame_size + get_entity_offset(ent);
fprintf(h->f, "\t.stabs\t\"%s:%u\",%d,0,0,%d\n",
get_entity_name(ent), type_num, N_LSYM, ofs);
/**
* dump a variable in the global type
*/
-static void stabs_variable(dbg_handle *handle, struct obstack *obst, entity *ent) {
+static void stabs_variable(dbg_handle *handle, struct obstack *obst, ir_entity *ent) {
stabs_handle *h = (stabs_handle *)handle;
unsigned tp_num = get_type_number(h, get_entity_type(ent));
char buf[1024];
static const debug_ops stabs_ops = {
stabs_close,
stabs_so,
+ stabs_include_begin,
+ stabs_include_end,
stabs_main_program,
stabs_method_begin,
stabs_method_end,
h->layout = NULL;
h->next_type_nr = 0;
h->type_map = pmap_create_ex(64);
+ h->main_file = NULL;
+ h->curr_file = NULL;
+
return &h->base;
} /* stabs_open */
h->ops->so(h, filename);
} /* be_dbg_begin */
+/**
+ * start an include file
+ */
+void be_dbg_include_begin(dbg_handle *h, const char *filename) {
+ if (h && h->ops->include_begin)
+ h->ops->include_begin(h, filename);
+} /* stabs_include_begin */
+
+/**
+ * end an include file
+ */
+void be_dbg_include_end(dbg_handle *h) {
+ if (h && h->ops->include_end)
+ h->ops->include_end(h);
+} /* stabs_include_end */
+
/**
* Main program
*/
} /* be_dbg_main_program */
/** debug for a method begin */
-void be_dbg_method_begin(dbg_handle *h, entity *ent, const be_stack_layout_t *layout) {
+void be_dbg_method_begin(dbg_handle *h, ir_entity *ent, const be_stack_layout_t *layout) {
if (h && h->ops->method_begin)
h->ops->method_begin(h, ent, layout);
} /* be_dbg_method_begin */
} /* be_dbg_types */
/** dump a global */
-void be_dbg_variable(dbg_handle *h, struct obstack *obst, entity *ent) {
+void be_dbg_variable(dbg_handle *h, struct obstack *obst, ir_entity *ent) {
if (h && h->ops->variable)
h->ops->variable(h, obst, ent);
} /* be_dbg_variable */
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