#include "pdeq.h"
#include "irtools.h"
#include "obst.h"
+#include "array.h"
#include "be_dbgout.h"
+#include "beabi.h"
/* Non-Stab Symbol and Stab Symbol Types */
enum stabs_types {
* The stabs handle.
*/
typedef struct stabs_handle {
- dbg_handle base; /**< the base class */
- FILE *f; /**< the file write to */
- entity *cur_ent; /**< current method entity */
- unsigned next_type_nr; /**< next type number */
- pmap *type_map; /**< a map from type to type number */
+ dbg_handle base; /**< the base class */
+ FILE *f; /**< the file write to */
+ 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 */
} stabs_handle;
/**
* generate the void type.
*/
static void gen_void_type(stabs_handle *h) {
- fprintf(h->f, "\t.stabs \"void:t%u=%u\",%d,0,0,0\n", 0, 0, N_LSYM);
+ fprintf(h->f, "\t.stabs\t\"void:t%u=%u\",%d,0,0,0\n", 0, 0, N_LSYM);
} /* gen_void_type */
typedef struct walker_env {
#define SET_TYPE_NOT_READY(wq, tp) \
do { \
set_type_link(tp, (void *)1); \
- waitq_put(wq, tp); \
+ waitq_put(wq, tp); \
} while(0)
/* a the is ready */
if (mode_is_int(mode)) {
char buf[64];
- fprintf(h->f, "\t.stabs \"%s:t%u=r%u;", get_type_name(tp), type_num, type_num);
+ 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);
} else if (mode_is_float(mode)) {
int size = get_type_size_bytes(tp);
- fprintf(h->f, "\t.stabs \"%s:t%u=r1;%d;0;\",%d,0,0,0\n", get_type_name(tp), type_num, size, N_LSYM);
+ 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);
}
} /* gen_primitive_type */
unsigned type_num = assign_type_number(h, tp);
int i, n;
- fprintf(h->f, "\t.stabs \"%s:T%u=e", get_type_name(tp), type_num);
+ 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);
char buf[64];
unsigned type_num = assign_type_number(h, tp);
unsigned el_num = get_type_number(h, get_pointer_points_to_type(tp));
- fprintf(h->f, "\t.stabs \"%s:T%u=*%u\",%d,0,0,0\n",
+ 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);
} /* gen_pointer_type */
else
desc = 'u';
- fprintf(h->f, "\t.stabs \"%s:T%u=%c%d",
+ fprintf(h->f, "\t.stabs\t\"%s:T%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) {
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 tp the type
+ */
+static void gen_method_type(stabs_handle *h, ir_type *tp) {
+ unsigned type_num = assign_type_number(h, tp);
+ ir_type *rtp = NULL;
+ unsigned res_type_num;
+ int i, n = get_method_n_ress(tp);
+
+ if (n > 0)
+ rtp = get_method_res_type(tp, 0);
+ 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);
+ res_type_num = get_type_number(h, rtp);
+ fprintf(h->f, ",%u", res_type_num);
+ }
+ fprintf(h->f, "\",%d,0,0,0\n", N_LSYM);
+} /* gen_method_type */
+
/**
* type-walker: generate declaration for simple types,
* put all other types on a wait queue
static void walk_type(type_or_ent *tore, void *ctx)
{
wenv_t *env = ctx;
- FILE *f = env->h->f;
- entity *ent;
ir_type *tp;
- ir_graph *irg;
if (get_kind(tore) == k_type) {
tp = (ir_type *)tore;
switch (get_type_tpop_code(tp)) {
case tpo_method:
if (is_method_type_ready(tp)) {
- if (get_method_n_ress(tp) <= 1)
- //gen_method_type(h, tp)
- ;
- else {
- fprintf(stderr, "Warning: Cannot create stabs debug info for type %s\n", get_type_name(tp));
- } /* if */
+ gen_method_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);
+ gen_array_type(h, tp);
SET_TYPE_READY(tp);
continue;
} /* if */
*/
static void stabs_so(dbg_handle *handle, const char *filename) {
stabs_handle *h = (stabs_handle *)handle;
- fprintf(h->f, "\t.stabs \"%s\",%d,0,0,.Ltext0\n", filename, N_SO);
+ fprintf(h->f, "\t.stabs\t\"%s\",%d,0,0,.Ltext0\n", filename, N_SO);
} /* stabs_so */
/**
stabs_handle *h = (stabs_handle *)handle;
ir_graph *irg = get_irp_main_irg();
if (irg) {
- fprintf(h->f, "\t.stabs \"%s\",%d,0,0,0\n", get_entity_name(get_irg_entity(irg)), N_MAIN);
+ fprintf(h->f, "\t.stabs\t\"%s\",%d,0,0,0\n", get_entity_name(get_irg_entity(irg)), N_MAIN);
}
} /* stabs_main_program */
*/
static void stabs_line(dbg_handle *handle, unsigned lineno, const char *address) {
stabs_handle *h = (stabs_handle *)handle;
- fprintf(h->f, ".stabn %d, 0, %u, %s-%s\n", N_SLINE, lineno, address, get_entity_ld_name(h->cur_ent));
+ 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 */
/**
- * dump the stabs for a function
+ * dump the stabs for a method begin
*/
-static void stabs_method(dbg_handle *handle, entity *ent) {
+static void stabs_method_begin(dbg_handle *handle, entity *ent, const be_stack_layout_t *layout) {
stabs_handle *h = (stabs_handle *)handle;
- ir_type *mtp, *rtp;
- unsigned type_num;
- int i, n;
+ ir_type *mtp, *rtp;
+ unsigned type_num;
+ int i, n, between_size;
h->cur_ent = ent;
+ h->layout = layout;
+ /* create the method entry */
mtp = get_entity_type(ent);
if (is_lowered_type(mtp))
mtp = get_associated_type(mtp);
else
rtp = NULL;
type_num = get_type_number(h, rtp);
- fprintf(h->f, "\t.stabs \"%s:%c%u\",%u,0,0,%s\n",
+ fprintf(h->f, "\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));
+ /* create parameter entries */
+ between_size = get_type_size_bytes(layout->between_type);
for (i = 0, n = get_method_n_params(mtp); i < n; ++i) {
ir_type *ptp = get_method_param_type(mtp, i);
const char *name = get_method_param_name(mtp, i);
unsigned type_num = get_type_number(h, ptp);
char buf[16];
int ofs = 0;
+ entity *stack_ent;
if (! name) {
snprintf(buf, sizeof(buf), "arg%d", i);
name = buf;
}
- /* FIXME: calculate the offset */
- fprintf(h->f, "\t.stabs \"%s:p%u\",%d,0,0,%d\n", name, type_num, N_PSYM, ofs);
+ /* check if this parameter has a stack entity. If it has, it
+ 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;
+ }
+ fprintf(h->f, "\t.stabs\t\"%s:p%u\",%d,0,0,%d\n", name, type_num, N_PSYM, ofs);
}
-} /* stabs_method */
+} /* stabs_method_begin */
+
+/**
+ * dump the stabs for a method end
+ */
+static void stabs_method_end(dbg_handle *handle) {
+ stabs_handle *h = (stabs_handle *)handle;
+ 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;
+ static unsigned scope_nr = 0;
+
+ /* 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_type *tp;
+ int ofs;
+ unsigned type_num;
+
+ /* ignore spill slots and other helper objects */
+ if (is_entity_compiler_generated(ent))
+ continue;
+
+ tp = get_entity_type(ent);
+ /* should not happen in backend but ... */
+ if (is_Method_type(tp))
+ continue;
+ type_num = get_type_number(h, tp);
+ ofs = -frame_size + get_entity_offset_bytes(ent);
+
+ fprintf(h->f, "\t.stabs\t\"%s:%u\",%d,0,0,%d\n",
+ get_entity_name(ent), type_num, N_LSYM, ofs);
+ }
+ /* 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);
+ ++scope_nr;
+
+ h->cur_ent = NULL;
+ h->layout = NULL;
+} /* stabs_method_end */
/**
* dump types
} /* stabs_types */
/**
- * dump a global
+ * dump a variable in the global type
*/
-static void stabs_global(dbg_handle *handle, struct obstack *obst, entity *ent) {
+static void stabs_variable(dbg_handle *handle, struct obstack *obst, entity *ent) {
stabs_handle *h = (stabs_handle *)handle;
unsigned tp_num = get_type_number(h, get_entity_type(ent));
+ char buf[1024];
- if (obst) {
- obstack_printf(obst, "\t.stabs \"%s:G%u\",%d,0,0,0\n",
- get_entity_name(ent), tp_num, N_GSYM);
- } else {
- fprintf(h->f, "\t.stabs \"%s:G%u\",%d,0,0,0\n",
+ if (get_entity_visibility(ent) == visibility_external_visible) {
+ /* a global variable */
+ snprintf(buf, sizeof(buf), "\t.stabs\t\"%s:G%u\",%d,0,0,0\n",
get_entity_name(ent), tp_num, N_GSYM);
+ } else { /* some kind of local */
+ ir_variability variability = get_entity_variability(ent);
+ int kind = N_STSYM;
+
+ if (variability == variability_uninitialized)
+ kind = N_LCSYM;
+ else if (variability == variability_constant)
+ kind = N_ROSYM;
+ snprintf(buf, sizeof(buf), "\t.stabs\t\"%s:S%u\",%d,0,0,%s\n",
+ get_entity_name(ent), tp_num, kind, get_entity_ld_name(ent));
}
-} /* stabs_global */
+ buf[sizeof(buf) - 1] = '\0';
+
+ if (obst)
+ obstack_printf(obst, "%s", buf);
+ else
+ fprintf(h->f, "%s", buf);
+} /* stabs_variable */
/**
* Close the stabs handler.
stabs_close,
stabs_so,
stabs_main_program,
- stabs_method,
+ stabs_method_begin,
+ stabs_method_end,
stabs_line,
stabs_types,
- stabs_global
+ stabs_variable
};
+/* 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) {
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->type_map = pmap_create_ex(64);
return &h->base;
/** close a debug handler. */
void be_dbg_close(dbg_handle *h) {
- if (h->ops->close)
+ 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->ops->so)
+ if (h && h->ops->so)
h->ops->so(h, filename);
} /* be_dbg_begin */
* Main program
*/
void be_dbg_main_program(dbg_handle *h) {
- if (h->ops->main_program)
+ if (h && h->ops->main_program)
h->ops->main_program(h);
} /* be_dbg_main_program */
-/** debug for a function */
-void be_dbg_method(dbg_handle *h, entity *ent) {
- if (h->ops->method)
- h->ops->method(h, ent);
-} /* be_dbg_method */
+/** debug for a method begin */
+void be_dbg_method_begin(dbg_handle *h, 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->ops->line)
+ 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->ops->types)
+ if (h && h->ops->types)
h->ops->types(h);
} /* be_dbg_types */
/** dump a global */
-void be_dbg_global(dbg_handle *h, struct obstack *obst, entity *ent) {
- if (h->ops->global)
- h->ops->global(h, obst, ent);
-} /* be_dbg_global */
+void be_dbg_variable(dbg_handle *h, struct obstack *obst, entity *ent) {
+ if (h && h->ops->variable)
+ h->ops->variable(h, obst, ent);
+} /* be_dbg_variable */
projects / libfirm / blobdiff