/* Output dbx-format symbol table information from GNU compiler.
- Copyright (C) 1987-2013 Free Software Foundation, Inc.
+ Copyright (C) 1987-2015 Free Software Foundation, Inc.
This file is part of GCC.
#include "system.h"
#include "coretypes.h"
#include "tm.h"
-
+#include "alias.h"
#include "tree.h"
+#include "fold-const.h"
#include "varasm.h"
#include "stor-layout.h"
#include "rtl.h"
#include "diagnostic-core.h"
#include "toplev.h"
#include "tm_p.h"
-#include "ggc.h"
#include "debug.h"
#include "function.h"
#include "target.h"
#include "common/common-target.h"
#include "langhooks.h"
#include "obstack.h"
+#include "expmed.h"
+#include "dojump.h"
+#include "explow.h"
+#include "calls.h"
+#include "emit-rtl.h"
+#include "stmt.h"
#include "expr.h"
#include "cgraph.h"
+#include "stringpool.h"
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h"
static void dbxout_symbol_name (tree, const char *, int);
static void dbxout_common_name (tree, const char *, stab_code_type);
static const char *dbxout_common_check (tree, int *);
-static void dbxout_global_decl (tree);
+static void dbxout_early_global_decl (tree);
+static void dbxout_late_global_decl (tree);
static void dbxout_type_decl (tree, int);
static void dbxout_handle_pch (unsigned);
static void debug_free_queue (void);
dbxout_init,
dbxout_finish,
debug_nothing_void,
+ debug_nothing_void,
debug_nothing_int_charstar,
debug_nothing_int_charstar,
dbxout_start_source_file,
debug_nothing_tree, /* begin_function */
#endif
debug_nothing_int, /* end_function */
+ debug_nothing_tree, /* register_main_translation_unit */
dbxout_function_decl,
- dbxout_global_decl, /* global_decl */
+ dbxout_early_global_decl, /* early_global_decl */
+ dbxout_late_global_decl, /* late_global_decl */
dbxout_type_decl, /* type_decl */
debug_nothing_tree_tree_tree_bool, /* imported_module_or_decl */
debug_nothing_tree, /* deferred_inline_function */
debug_nothing_tree, /* outlining_inline_function */
- debug_nothing_rtx, /* label */
+ debug_nothing_rtx_code_label, /* label */
dbxout_handle_pch, /* handle_pch */
- debug_nothing_rtx, /* var_location */
+ debug_nothing_rtx_insn, /* var_location */
debug_nothing_void, /* switch_text_section */
debug_nothing_tree_tree, /* set_name */
0, /* start_end_main_source_file */
dbxout_init,
dbxout_finish,
debug_nothing_void,
+ debug_nothing_void,
debug_nothing_int_charstar,
debug_nothing_int_charstar,
dbxout_start_source_file,
xcoffout_end_epilogue,
debug_nothing_tree, /* begin_function */
xcoffout_end_function,
+ debug_nothing_tree, /* register_main_translation_unit */
debug_nothing_tree, /* function_decl */
- dbxout_global_decl, /* global_decl */
+ dbxout_early_global_decl, /* early_global_decl */
+ dbxout_late_global_decl, /* late_global_decl */
dbxout_type_decl, /* type_decl */
debug_nothing_tree_tree_tree_bool, /* imported_module_or_decl */
debug_nothing_tree, /* deferred_inline_function */
debug_nothing_tree, /* outlining_inline_function */
- debug_nothing_rtx, /* label */
+ debug_nothing_rtx_code_label, /* label */
dbxout_handle_pch, /* handle_pch */
- debug_nothing_rtx, /* var_location */
+ debug_nothing_rtx_insn, /* var_location */
debug_nothing_void, /* switch_text_section */
debug_nothing_tree_tree, /* set_name */
0, /* start_end_main_source_file */
static void
stabstr_O (tree cst)
{
- unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (cst);
- unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (cst);
-
- char buf[128];
- char *p = buf + sizeof buf;
-
- /* GDB wants constants with no extra leading "1" bits, so
- we need to remove any sign-extension that might be
- present. */
- {
- const unsigned int width = TYPE_PRECISION (TREE_TYPE (cst));
- if (width == HOST_BITS_PER_DOUBLE_INT)
- ;
- else if (width > HOST_BITS_PER_WIDE_INT)
- high &= (((HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT)) - 1);
- else if (width == HOST_BITS_PER_WIDE_INT)
- high = 0;
- else
- high = 0, low &= (((HOST_WIDE_INT) 1 << width) - 1);
- }
+ int prec = TYPE_PRECISION (TREE_TYPE (cst));
+ int res_pres = prec % 3;
+ int i;
+ unsigned int digit;
/* Leading zero for base indicator. */
stabstr_C ('0');
/* If the value is zero, the base indicator will serve as the value
all by itself. */
- if (high == 0 && low == 0)
+ if (wi::eq_p (cst, 0))
return;
- /* If the high half is zero, we need only print the low half normally. */
- if (high == 0)
- NUMBER_FMT_LOOP (p, low, 8);
- else
+ /* GDB wants constants with no extra leading "1" bits, so
+ we need to remove any sign-extension that might be
+ present. */
+ if (res_pres == 1)
{
- /* When high != 0, we need to print enough zeroes from low to
- give the digits from high their proper place-values. Hence
- NUMBER_FMT_LOOP cannot be used. */
- const int n_digits = HOST_BITS_PER_WIDE_INT / 3;
- int i;
-
- for (i = 1; i <= n_digits; i++)
- {
- unsigned int digit = low % 8;
- low /= 8;
- *--p = '0' + digit;
- }
-
- /* Octal digits carry exactly three bits of information. The
- width of a HOST_WIDE_INT is not normally a multiple of three.
- Therefore, the next digit printed probably needs to carry
- information from both low and high. */
- if (HOST_BITS_PER_WIDE_INT % 3 != 0)
- {
- const int n_leftover_bits = HOST_BITS_PER_WIDE_INT % 3;
- const int n_bits_from_high = 3 - n_leftover_bits;
-
- const unsigned HOST_WIDE_INT
- low_mask = (((unsigned HOST_WIDE_INT)1) << n_leftover_bits) - 1;
- const unsigned HOST_WIDE_INT
- high_mask = (((unsigned HOST_WIDE_INT)1) << n_bits_from_high) - 1;
-
- unsigned int digit;
-
- /* At this point, only the bottom n_leftover_bits bits of low
- should be set. */
- gcc_assert (!(low & ~low_mask));
-
- digit = (low | ((high & high_mask) << n_leftover_bits));
- high >>= n_bits_from_high;
-
- *--p = '0' + digit;
- }
-
- /* Now we can format high in the normal manner. However, if
- the only bits of high that were set were handled by the
- digit split between low and high, high will now be zero, and
- we don't want to print extra digits in that case. */
- if (high)
- NUMBER_FMT_LOOP (p, high, 8);
+ digit = wi::extract_uhwi (cst, prec - 1, 1);
+ stabstr_C ('0' + digit);
+ }
+ else if (res_pres == 2)
+ {
+ digit = wi::extract_uhwi (cst, prec - 2, 2);
+ stabstr_C ('0' + digit);
}
- obstack_grow (&stabstr_ob, p, (buf + sizeof buf) - p);
+ prec -= res_pres;
+ for (i = prec - 3; i >= 0; i = i - 3)
+ {
+ digit = wi::extract_uhwi (cst, i, 3);
+ stabstr_C ('0' + digit);
+ }
}
/* Called whenever it is safe to break a stabs string into multiple
get_lang_number (void)
{
const char *language_string = lang_hooks.name;
-
- if (strcmp (language_string, "GNU C") == 0)
+ if (lang_GNU_C ())
return N_SO_C;
- else if (strcmp (language_string, "GNU C++") == 0)
+ else if (lang_GNU_CXX ())
return N_SO_CC;
else if (strcmp (language_string, "GNU F77") == 0)
return N_SO_FORTRAN;
- else if (strcmp (language_string, "GNU Fortran") == 0)
+ else if (lang_GNU_Fortran ())
return N_SO_FORTRAN90; /* CHECKME */
else if (strcmp (language_string, "GNU Pascal") == 0)
return N_SO_PASCAL;
const char *mapped_name;
typevec_len = 100;
- typevec = ggc_alloc_cleared_vec_typeinfo (typevec_len);
+ typevec = ggc_cleared_vec_alloc<typeinfo> (typevec_len);
/* stabstr_ob contains one string, which will be just fine with
1-byte alignment. */
#endif /* DBX_DEBUGGING_INFO */
+static void
+dbxout_early_global_decl (tree decl ATTRIBUTE_UNUSED)
+{
+ /* NYI for non-dwarf. */
+}
+
/* Debug information for a global DECL. Called from toplev.c after
compilation proper has finished. */
static void
-dbxout_global_decl (tree decl)
+dbxout_late_global_decl (tree decl)
{
if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
{
/* Also ignore abstract methods; those are only interesting to
the DWARF backends. */
- if (DECL_IGNORED_P (fndecl) || DECL_ABSTRACT (fndecl))
+ if (DECL_IGNORED_P (fndecl) || DECL_ABSTRACT_P (fndecl))
continue;
/* Redundantly output the plain name, since that's what gdb
another type's definition; instead, output an xref
and let the definition come when the name is defined. */
stabstr_S ((TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu");
- if (TYPE_NAME (type) != 0
- /* The C frontend creates for anonymous variable length
- records/unions TYPE_NAME with DECL_NAME NULL. */
- && (TREE_CODE (TYPE_NAME (type)) != TYPE_DECL
- || DECL_NAME (TYPE_NAME (type))))
- dbxout_type_name (type);
+ if (TYPE_IDENTIFIER (type))
+ {
+ /* Note that the C frontend creates for anonymous variable
+ length records/unions TYPE_NAME with DECL_NAME NULL. */
+ dbxout_type_name (type);
+ }
else
{
stabstr_S ("$$");
access == access_protected_node
? '1' :'0');
if (BINFO_VIRTUAL_P (child)
- && (strcmp (lang_hooks.name, "GNU C++") == 0
+ && (lang_GNU_CXX ()
|| strcmp (lang_hooks.name, "GNU Objective-C++") == 0))
/* For a virtual base, print the (negative)
offset within the vtable where we must look
if (TREE_CODE (value) == CONST_DECL)
value = DECL_INITIAL (value);
- if (TREE_INT_CST_HIGH (value) == 0)
- stabstr_D (TREE_INT_CST_LOW (value));
- else if (TREE_INT_CST_HIGH (value) == -1
- && (HOST_WIDE_INT) TREE_INT_CST_LOW (value) < 0)
+ if (cst_and_fits_in_hwi (value))
stabstr_D (TREE_INT_CST_LOW (value));
else
stabstr_O (value);
dbxout_type (TREE_TYPE (type), 0);
break;
+ case POINTER_BOUNDS_TYPE:
+ /* No debug info for pointer bounds type supported yet. */
+ break;
+
default:
+ /* A C++ function with deduced return type can have a TEMPLATE_TYPE_PARM
+ named 'auto' in its type.
+ No debug info for TEMPLATE_TYPE_PARM type supported yet. */
+ if (lang_GNU_CXX ())
+ {
+ tree name = TYPE_IDENTIFIER (type);
+ if (name == get_identifier ("auto")
+ || name == get_identifier ("decltype(auto)"))
+ break;
+ }
+
gcc_unreachable ();
}
}
stabstr_I (t);
}
-/* Output leading leading struct or class names needed for qualifying
- type whose scope is limited to a struct or class. */
+/* Output leading struct or class names needed for qualifying type
+ whose scope is limited to a struct or class. */
static void
dbxout_class_name_qualifiers (tree decl)
/* If this is a var that might not be actually output,
return NULL, otherwise stabs might reference an undefined
symbol. */
- varpool_node *node = varpool_get_node (expr);
+ varpool_node *node = varpool_node::get (expr);
if (!node || !node->definition)
return NULL;
}
case ARRAY_RANGE_REF:
case BIT_FIELD_REF:
{
- enum machine_mode mode;
+ machine_mode mode;
HOST_WIDE_INT bitsize, bitpos;
tree offset, tem;
int volatilep = 0, unsignedp = 0;
/* Helper function for output_used_types. Queue one entry from the
used types hash to be output. */
-static int
-output_used_types_helper (void **slot, void *data)
+bool
+output_used_types_helper (tree const &type, vec<tree> *types_p)
{
- tree type = (tree) *slot;
- vec<tree> *types_p = (vec<tree> *) data;
-
if ((TREE_CODE (type) == RECORD_TYPE
|| TREE_CODE (type) == UNION_TYPE
|| TREE_CODE (type) == QUAL_UNION_TYPE
&& TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
types_p->quick_push (TYPE_NAME (type));
- return 1;
+ return true;
}
/* This is a qsort callback which sorts types and declarations into a
int i;
tree type;
- types.create (htab_elements (cfun->used_types_hash));
- htab_traverse (cfun->used_types_hash, output_used_types_helper, &types);
+ types.create (cfun->used_types_hash->elements ());
+ cfun->used_types_hash->traverse<vec<tree> *, output_used_types_helper>
+ (&types);
/* Sort by UID to prevent dependence on hash table ordering. */
types.qsort (output_types_sort);
DBX format, and it confuses some tools such as objdump. */
&& tree_fits_uhwi_p (TYPE_SIZE (type)))
{
- tree name = TYPE_NAME (type);
- if (TREE_CODE (name) == TYPE_DECL)
- name = DECL_NAME (name);
+ tree name = TYPE_IDENTIFIER (type);
dbxout_begin_complex_stabs ();
stabstr_I (name);
This is what represents `struct foo' with no typedef. */
/* In C++, the name of a type is the corresponding typedef.
In C, it is an IDENTIFIER_NODE. */
- tree name = TYPE_NAME (type);
- if (TREE_CODE (name) == TYPE_DECL)
- name = DECL_NAME (name);
+ tree name = TYPE_IDENTIFIER (type);
dbxout_begin_complex_stabs ();
stabstr_I (name);
if (!decl_rtl)
DBXOUT_DECR_NESTING_AND_RETURN (0);
- decl_rtl = eliminate_regs (decl_rtl, VOIDmode, NULL_RTX);
+ if (!is_global_var (decl))
+ decl_rtl = eliminate_regs (decl_rtl, VOIDmode, NULL_RTX);
#ifdef LEAF_REG_REMAP
if (crtl->uses_only_leaf_regs)
leaf_renumber_regs_insn (decl_rtl);
we rely on the fact that error_mark_node initializers always
end up in bss for C++ and never end up in bss for C. */
if (DECL_INITIAL (decl) == 0
- || (!strcmp (lang_hooks.name, "GNU C++")
+ || (lang_GNU_CXX ()
&& DECL_INITIAL (decl) == error_mark_node))
{
int offs;
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