-/**
- * Stabs support.
+/*
+ * Copyright (C) 1995-2008 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 "obst.h"
#include "irprog.h"
-#include "entity.h"
#include "irgraph.h"
-#include "typewalk.h"
#include "tv.h"
#include "xmalloc.h"
#include "pmap.h"
#include "irtools.h"
#include "obst.h"
#include "array.h"
-#include "be_dbgout.h"
+#include "be_dbgout_t.h"
#include "beabi.h"
+#include "bemodule.h"
+#include "beemitter.h"
+#include "dbginfo.h"
/* Non-Stab Symbol and Stab Symbol Types */
enum stabs_types {
*/
typedef struct stabs_handle {
dbg_handle base; /**< the base class */
- FILE *f; /**< the file write to */
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 teh current source file */
+ const char *curr_file; /**< name of the current source file */
+ unsigned label_num;
+ unsigned last_line;
} stabs_handle;
/**
return num;
} /* get_type_number */
+/**
+ * Map a given Type to void by assigned the type number 0.
+ */
+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.
*/
static void gen_void_type(stabs_handle *h) {
- fprintf(h->f, "\t.stabs\t\"void:t%u=%u\",%d,0,0,0\n", 0, 0, N_LSYM);
+ (void) h;
+ be_emit_irprintf("\t.stabs\t\"void:t%u=%u\",%d,0,0,0\n", 0, 0, N_LSYM);
+ be_emit_write_line();
} /* gen_void_type */
typedef struct walker_env {
* @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 */
type_num = get_type_number(h, tp);
if (mode_is_int(mode)) {
- char buf[64];
- fprintf(h->f, "\t.stabs\t\"%s:t%u=r%u;", get_type_name(tp), type_num, type_num);
- tarval_snprintf(buf, sizeof(buf), get_mode_min(mode));
- fprintf(h->f, "%s;", buf);
- tarval_snprintf(buf, sizeof(buf), get_mode_max(mode));
- fprintf(h->f, "%s;\",%d,0,0,0\n", buf, N_LSYM);
+ be_emit_irprintf("\t.stabs\t\"%s:t%u=r%u;", get_type_name(tp), type_num, type_num);
+ be_emit_tarval(get_mode_min(mode));
+ be_emit_char(';');
+ be_emit_tarval(get_mode_max(mode));
+ be_emit_irprintf(";\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
} else if (mode_is_float(mode)) {
int size = get_type_size_bytes(tp);
- fprintf(h->f, "\t.stabs\t\"%s:t%u=r1;%d;0;\",%d,0,0,0\n", get_type_name(tp), type_num, size, N_LSYM);
+ be_emit_irprintf("\t.stabs\t\"%s:t%u=r1;%d;0;\",%d,0,0,0\n", get_type_name(tp), type_num, size, N_LSYM);
+ be_emit_write_line();
}
} /* gen_primitive_type */
int i, n;
SET_TYPE_READY(tp);
- fprintf(h->f, "\t.stabs\t\"%s:T%u=e", get_type_name(tp), type_num);
+ be_emit_irprintf("\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);
char buf[64];
tarval_snprintf(buf, sizeof(buf), get_enumeration_value(ec));
- fprintf(h->f, "%s:%s,", get_enumeration_name(ec), buf);
+ be_emit_irprintf("%s:%s,", get_enumeration_name(ec), buf);
}
- fprintf(h->f, ";\",%d,0,0,0\n", N_LSYM);
+ be_emit_irprintf(";\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
} /* 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);
+
+ be_emit_irprintf("%u=*%u", type_num, el_num);
+}
+
/**
* Generates a pointer type
*
*/
static void gen_pointer_type(wenv_t *env, ir_type *tp) {
stabs_handle *h = env->h;
- unsigned type_num = get_type_number(h, tp);
ir_type *el_tp = get_pointer_points_to_type(tp);
- unsigned el_num = get_type_number(h, el_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);
+
+ be_emit_irprintf("\t.stabs\t\"%s:t", get_type_name(tp));
+ print_pointer_type(h, tp, 0);
+ be_emit_irprintf("\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
} /* 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;
+
+ be_emit_irprintf("%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 */
+ be_emit_irprintf("r1;%ld;%ld;", min, max-1);
+ }
+ }
+
+ type_num = get_type_number(h, etp);
+ be_emit_irprintf("%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);
+
+ be_emit_irprintf("\t.stabs\t\"%s:t", get_type_name(tp));
+
+ print_array_type(h, tp, 0);
+
+ be_emit_irprintf("\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
+} /* gen_array_type */
+
/**
* Generates a struct/union type
*
else if (is_Union_type(tp))
desc = 'u';
- fprintf(h->f, "\t.stabs\t\"%s:Tt%u=%c%d",
+ be_emit_irprintf("\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) {
ir_entity *ent = get_compound_member(tp, i);
ir_type *mtp = get_entity_type(ent);
- int ofs, size;
+ int ofs;
+ unsigned size;
if (! IS_TYPE_READY(mtp))
waitq_put(env->wq, mtp);
int bofs;
type_num = get_type_number(h, tp);
- size = get_type_size_bits(tp);
+ size = get_type_size_bytes(tp) * 8;
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);
+ be_emit_irprintf("%s:%u,%d,%u;", get_entity_name(ent), type_num, bofs, size);
}
} else {
/* no bitfield */
- type_num = get_type_number(h, mtp);
- size = get_type_size_bits(mtp);
+ be_emit_irprintf("%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. */
+ be_emit_irprintf("%u", type_num);
+ }
+ size = get_type_size_bytes(mtp) * 8;
+ be_emit_irprintf(",%d,%u;", ofs * 8, size);
}
}
- fprintf(h->f, ";\",%d,0,0,0\n", N_LSYM);
+ be_emit_irprintf(";\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
} /* gen_struct_type */
-/**
- * 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;
- unsigned type_num = get_type_number(h, tp);
- int i, n = get_array_n_dimensions(tp);
- ir_type *etp = get_array_element_type(tp);
- int *perm;
-
- SET_TYPE_READY(tp);
- if (! IS_TYPE_READY(etp))
- waitq_put(env->wq, 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);
- }
-
- 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
*
}
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);
+ be_emit_irprintf("\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) {
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);
+ be_emit_irprintf(",%u", res_type_num);
}
- fprintf(h->f, "\",%d,0,0,0\n", N_LSYM);
+ be_emit_irprintf("\",%d,0,0,0\n", N_LSYM);
+ be_emit_write_line();
} /* gen_method_type */
/**
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);
+ be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,.Ltext0\n", filename, N_SO);
+ be_emit_write_line();
} /* 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
*/
static void stabs_main_program(dbg_handle *handle) {
- stabs_handle *h = (stabs_handle *)handle;
ir_graph *irg = get_irp_main_irg();
+
+ (void) handle;
if (irg) {
- fprintf(h->f, "\t.stabs\t\"%s\",%d,0,0,0\n", get_entity_name(get_irg_entity(irg)), N_MAIN);
+ be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,0\n", get_entity_name(get_irg_entity(irg)), N_MAIN);
+ be_emit_write_line();
}
} /* stabs_main_program */
-/**
- * prints a line number
- */
-static void stabs_line(dbg_handle *handle, unsigned lineno, const char *address) {
- stabs_handle *h = (stabs_handle *)handle;
- fprintf(h->f, "\t.stabn\t%d, 0, %u, %s-%s\n", N_SLINE, lineno, address, get_entity_ld_name(h->cur_ent));
-} /* stabs_line */
+static void stabs_set_dbg_info(dbg_handle *h, dbg_info *dbgi)
+{
+ stabs_handle *handle = (stabs_handle*) h;
+ unsigned lineno;
+ const char *fname = ir_retrieve_dbg_info(dbgi, &lineno);
+
+ if (fname == NULL)
+ return;
+
+ if (handle->curr_file != fname) {
+ /* TODO: escape filename correctly */
+ if (handle->curr_file != handle->main_file) {
+ be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,0\n", handle->curr_file,
+ N_EINCL);
+ be_emit_write_line();
+ }
+ if (fname != handle->main_file) {
+ be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,0\n", fname, N_SOL);
+ be_emit_write_line();
+ }
+ handle->curr_file = fname;
+ }
+ if (handle->last_line != lineno) {
+ char label[64];
+
+ snprintf(label, sizeof(label), ".LM%u", ++handle->label_num);
+ handle->last_line = lineno;
+
+ be_emit_irprintf("\t.stabn\t%d, 0, %u, %s-%s\n", N_SLINE, lineno,
+ label, get_entity_ld_name(handle->cur_ent));
+ be_emit_write_line();
+
+ be_emit_string(label);
+ be_emit_cstring(":\n");
+ be_emit_write_line();
+ }
+}
/**
* dump the stabs for a method begin
else
rtp = NULL;
type_num = get_type_number(h, rtp);
- fprintf(h->f, "\t.stabs\t\"%s:%c%u\",%u,0,0,%s\n",
+ be_emit_irprintf("\t.stabs\t\"%s:%c%u\",%u,0,0,%s\n",
get_entity_name(ent),
get_entity_visibility(ent) == visibility_external_visible ? 'F' : 'f',
type_num,
N_FUN,
get_entity_ld_name(ent));
+ be_emit_write_line();
/* create parameter entries */
between_size = get_type_size_bytes(layout->between_type);
if (stack_ent) {
ofs = get_entity_offset(stack_ent) + between_size;
}
- fprintf(h->f, "\t.stabs\t\"%s:p%u\",%d,0,0,%d\n", name, type_num, N_PSYM, ofs);
+ be_emit_irprintf("\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. */
+ be_emit_irprintf("%u", type_num);
+ }
+
+ be_emit_irprintf("\",%d,0,0,%d\n", N_PSYM, ofs);
+ be_emit_write_line();
}
} /* stabs_method_begin */
type_num = get_type_number(h, tp);
ofs = -frame_size + get_entity_offset(ent);
- fprintf(h->f, "\t.stabs\t\"%s:%u\",%d,0,0,%d\n",
+ be_emit_irprintf("\t.stabs\t\"%s:%u\",%d,0,0,%d\n",
get_entity_name(ent), type_num, N_LSYM, ofs);
+ be_emit_write_line();
}
/* we need a lexical block here */
- fprintf(h->f, "\t.stabn\t%d,0,0,%s-%s\n", N_LBRAC, ld_name, ld_name);
- fprintf(h->f, "\t.stabn\t%d,0,0,.Lscope%u-%s\n", N_RBRAC, scope_nr, ld_name);
- fprintf(h->f, ".Lscope%u:\n", scope_nr);
+ be_emit_irprintf("\t.stabn\t%d,0,0,%s-%s\n", N_LBRAC, ld_name, ld_name);
+ be_emit_write_line();
+ be_emit_irprintf("\t.stabn\t%d,0,0,.Lscope%u-%s\n", N_RBRAC, scope_nr, ld_name);
+ be_emit_write_line();
+ be_emit_irprintf(".Lscope%u:\n", scope_nr);
+ be_emit_write_line();
++scope_nr;
h->cur_ent = NULL;
/**
* dump a variable in the global type
*/
-static void stabs_variable(dbg_handle *handle, struct obstack *obst, ir_entity *ent) {
+static void stabs_variable(dbg_handle *handle, ir_entity *ent) {
stabs_handle *h = (stabs_handle *)handle;
unsigned tp_num = get_type_number(h, get_entity_type(ent));
char buf[1024];
}
buf[sizeof(buf) - 1] = '\0';
- if (obst)
- obstack_printf(obst, "%s", buf);
- else
- fprintf(h->f, "%s", buf);
+ be_emit_string(buf);
} /* stabs_variable */
/**
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,
- stabs_line,
stabs_types,
- stabs_variable
+ stabs_variable,
+ stabs_set_dbg_info
};
-/* Opens the NULL handler */
-dbg_handle *be_nulldbg_open(void) {
- return NULL;
-} /* be_nulldbg_open */
-
/* Opens a stabs handler */
-dbg_handle *be_stabs_open(FILE *out) {
+dbg_handle *be_stabs_open(void) {
stabs_handle *h = xmalloc(sizeof(*h));
h->base.ops = &stabs_ops;
- h->f = out;
h->cur_ent = NULL;
h->layout = NULL;
h->next_type_nr = 0;
h->curr_file = NULL;
return &h->base;
-} /* stabs_open */
-
-/** close a debug handler. */
-void be_dbg_close(dbg_handle *h) {
- if (h && h->ops->close)
- h->ops->close(h);
-} /* be_dbg_close */
-
-/**
- * start a new source object (compilation unit)
- */
-void be_dbg_so(dbg_handle *h, const char *filename) {
- if (h && h->ops->so)
- 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 */
+void be_init_stabs(void)
+{
+ be_register_dbgout_module("stabs", be_stabs_open);
+}
-/**
- * Main program
- */
-void be_dbg_main_program(dbg_handle *h) {
- if (h && h->ops->main_program)
- h->ops->main_program(h);
-} /* be_dbg_main_program */
-
-/** debug for a method begin */
-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 */
-
-/** debug for a method end */
-void be_dbg_method_end(dbg_handle *h) {
- if (h && h->ops->method_end)
- h->ops->method_end(h);
-} /* be_dbg_method_end */
-
-/** debug for line number */
-void be_dbg_line(dbg_handle *h, unsigned lineno, const char *address) {
- if (h && h->ops->line)
- h->ops->line(h, lineno, address);
-} /* be_dbg_line */
-
-/** dump types */
-void be_dbg_types(dbg_handle *h) {
- if (h && h->ops->types)
- h->ops->types(h);
-} /* be_dbg_types */
-
-/** dump a global */
-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 */
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_stabs);
projects / libfirm / blobdiff