/* Convert symbols from GDB to GCC
- Copyright (C) 2014-2015 Free Software Foundation, Inc.
+ Copyright (C) 2014-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "compile-internal.h"
-#include "gdb_assert.h"
#include "symtab.h"
#include "parser-defs.h"
#include "block.h"
static hashval_t
hash_symbol_error (const void *a)
{
- const struct symbol_error *se = a;
+ const struct symbol_error *se = (const struct symbol_error *) a;
return htab_hash_pointer (se->sym);
}
static int
eq_symbol_error (const void *a, const void *b)
{
- const struct symbol_error *sea = a;
- const struct symbol_error *seb = b;
+ const struct symbol_error *sea = (const struct symbol_error *) a;
+ const struct symbol_error *seb = (const struct symbol_error *) b;
return sea->sym == seb->sym;
}
static void
del_symbol_error (void *a)
{
- struct symbol_error *se = a;
+ struct symbol_error *se = (struct symbol_error *) a;
xfree (se->message);
xfree (se);
{
struct symbol_error search;
struct symbol_error *err;
- char *message;
if (context->symbol_err_map == NULL)
return;
search.sym = sym;
- err = htab_find (context->symbol_err_map, &search);
+ err = (struct symbol_error *) htab_find (context->symbol_err_map, &search);
if (err == NULL || err->message == NULL)
return;
- message = err->message;
+ gdb::unique_xmalloc_ptr<char> message (err->message);
err->message = NULL;
- make_cleanup (xfree, message);
- error (_("%s"), message);
+ error (_("%s"), message.get ());
}
\f
/* Compute the name of the pointer representing a local symbol's
address. */
-static char *
+static gdb::unique_xmalloc_ptr<char>
symbol_substitution_name (struct symbol *sym)
{
- return concat ("__", SYMBOL_NATURAL_NAME (sym), "_ptr", (char *) NULL);
+ return gdb::unique_xmalloc_ptr<char>
+ (concat ("__", SYMBOL_NATURAL_NAME (sym), "_ptr", (char *) NULL));
}
/* Convert a given symbol, SYM, to the compiler's representation.
static void
convert_one_symbol (struct compile_c_instance *context,
- struct symbol *sym,
+ struct block_symbol sym,
int is_global,
int is_local)
{
gcc_type sym_type;
- const char *filename = symbol_symtab (sym)->filename;
- unsigned short line = SYMBOL_LINE (sym);
+ const char *filename = symbol_symtab (sym.symbol)->filename;
+ unsigned short line = SYMBOL_LINE (sym.symbol);
- error_symbol_once (context, sym);
+ error_symbol_once (context, sym.symbol);
- if (SYMBOL_CLASS (sym) == LOC_LABEL)
+ if (SYMBOL_CLASS (sym.symbol) == LOC_LABEL)
sym_type = 0;
else
- sym_type = convert_type (context, SYMBOL_TYPE (sym));
+ sym_type = convert_type (context, SYMBOL_TYPE (sym.symbol));
- if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)
+ if (SYMBOL_DOMAIN (sym.symbol) == STRUCT_DOMAIN)
{
/* Binding a tag, so we don't need to build a decl. */
C_CTX (context)->c_ops->tagbind (C_CTX (context),
- SYMBOL_NATURAL_NAME (sym),
+ SYMBOL_NATURAL_NAME (sym.symbol),
sym_type, filename, line);
}
else
gcc_decl decl;
enum gcc_c_symbol_kind kind;
CORE_ADDR addr = 0;
- char *symbol_name = NULL;
+ gdb::unique_xmalloc_ptr<char> symbol_name;
- switch (SYMBOL_CLASS (sym))
+ switch (SYMBOL_CLASS (sym.symbol))
{
case LOC_TYPEDEF:
kind = GCC_C_SYMBOL_TYPEDEF;
case LOC_LABEL:
kind = GCC_C_SYMBOL_LABEL;
- addr = SYMBOL_VALUE_ADDRESS (sym);
+ addr = SYMBOL_VALUE_ADDRESS (sym.symbol);
break;
case LOC_BLOCK:
kind = GCC_C_SYMBOL_FUNCTION;
- addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
- if (is_global && TYPE_GNU_IFUNC (SYMBOL_TYPE (sym)))
+ addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym.symbol));
+ if (is_global && TYPE_GNU_IFUNC (SYMBOL_TYPE (sym.symbol)))
addr = gnu_ifunc_resolve_addr (target_gdbarch (), addr);
break;
case LOC_CONST:
- if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_ENUM)
+ if (TYPE_CODE (SYMBOL_TYPE (sym.symbol)) == TYPE_CODE_ENUM)
{
/* Already handled by convert_enum. */
return;
}
- C_CTX (context)->c_ops->build_constant (C_CTX (context), sym_type,
- SYMBOL_NATURAL_NAME (sym),
- SYMBOL_VALUE (sym),
- filename, line);
+ C_CTX (context)->c_ops->build_constant
+ (C_CTX (context),
+ sym_type, SYMBOL_NATURAL_NAME (sym.symbol),
+ SYMBOL_VALUE (sym.symbol),
+ filename, line);
return;
case LOC_CONST_BYTES:
error (_("Unsupported LOC_CONST_BYTES for symbol \"%s\"."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
case LOC_UNDEF:
internal_error (__FILE__, __LINE__, _("LOC_UNDEF found for \"%s\"."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
case LOC_COMMON_BLOCK:
error (_("Fortran common block is unsupported for compilation "
"evaluaton of symbol \"%s\"."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
case LOC_OPTIMIZED_OUT:
error (_("Symbol \"%s\" cannot be used for compilation evaluation "
"as it is optimized out."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
case LOC_COMPUTED:
if (is_local)
warning (_("Symbol \"%s\" is thread-local and currently can only "
"be referenced from the current thread in "
"compiled code."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
/* FALLTHROUGH */
case LOC_UNRESOLVED:
/* 'symbol_name' cannot be used here as that one is used only for
struct value *val;
struct frame_info *frame = NULL;
- if (symbol_read_needs_frame (sym))
+ if (symbol_read_needs_frame (sym.symbol))
{
frame = get_selected_frame (NULL);
if (frame == NULL)
error (_("Symbol \"%s\" cannot be used because "
"there is no selected frame"),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
}
- val = read_var_value (sym, frame);
+ val = read_var_value (sym.symbol, sym.block, frame);
if (VALUE_LVAL (val) != lval_memory)
error (_("Symbol \"%s\" cannot be used for compilation "
"evaluation as its address has not been found."),
- SYMBOL_PRINT_NAME (sym));
+ SYMBOL_PRINT_NAME (sym.symbol));
kind = GCC_C_SYMBOL_VARIABLE;
addr = value_address (val);
case LOC_LOCAL:
substitution:
kind = GCC_C_SYMBOL_VARIABLE;
- symbol_name = symbol_substitution_name (sym);
+ symbol_name = symbol_substitution_name (sym.symbol);
break;
case LOC_STATIC:
kind = GCC_C_SYMBOL_VARIABLE;
- addr = SYMBOL_VALUE_ADDRESS (sym);
+ addr = SYMBOL_VALUE_ADDRESS (sym.symbol);
break;
case LOC_FINAL_VALUE:
if (context->base.scope != COMPILE_I_RAW_SCOPE
|| symbol_name == NULL)
{
- decl = C_CTX (context)->c_ops->build_decl (C_CTX (context),
- SYMBOL_NATURAL_NAME (sym),
- kind,
- sym_type,
- symbol_name, addr,
- filename, line);
+ decl = C_CTX (context)->c_ops->build_decl
+ (C_CTX (context),
+ SYMBOL_NATURAL_NAME (sym.symbol),
+ kind,
+ sym_type,
+ symbol_name.get (), addr,
+ filename, line);
C_CTX (context)->c_ops->bind (C_CTX (context), decl, is_global);
}
-
- xfree (symbol_name);
}
}
static void
convert_symbol_sym (struct compile_c_instance *context, const char *identifier,
- struct symbol *sym, domain_enum domain)
+ struct block_symbol sym, domain_enum domain)
{
- const struct block *static_block, *found_block;
+ const struct block *static_block;
int is_local_symbol;
- found_block = block_found;
-
/* If we found a symbol and it is not in the static or global
scope, then we should first convert any static or global scope
symbol of the same name. This lets this unusual case work:
}
*/
- static_block = block_static_block (found_block);
+ static_block = block_static_block (sym.block);
/* STATIC_BLOCK is NULL if FOUND_BLOCK is the global block. */
- is_local_symbol = (found_block != static_block && static_block != NULL);
+ is_local_symbol = (sym.block != static_block && static_block != NULL);
if (is_local_symbol)
{
- struct symbol *global_sym;
+ struct block_symbol global_sym;
global_sym = lookup_symbol (identifier, NULL, domain, NULL);
/* If the outer symbol is in the static block, we ignore it, as
it cannot be referenced. */
- if (global_sym != NULL
- && block_found != block_static_block (block_found))
+ if (global_sym.symbol != NULL
+ && global_sym.block != block_static_block (global_sym.block))
{
if (compile_debug)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_convert_symbol \"%s\": global symbol\n",
identifier);
convert_one_symbol (context, global_sym, 1, 0);
}
if (compile_debug)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_convert_symbol \"%s\": local symbol\n",
identifier);
convert_one_symbol (context, sym, 0, is_local_symbol);
break;
case mst_text_gnu_ifunc:
- /* nodebug_text_gnu_ifunc_symbol would cause:
- function return type cannot be function */
- type = objfile_type (objfile)->nodebug_text_symbol;
+ type = objfile_type (objfile)->nodebug_text_gnu_ifunc_symbol;
kind = GCC_C_SYMBOL_FUNCTION;
addr = gnu_ifunc_resolve_addr (target_gdbarch (), addr);
break;
enum gcc_c_oracle_request request,
const char *identifier)
{
- struct compile_c_instance *context = datum;
+ struct compile_c_instance *context = (struct compile_c_instance *) datum;
domain_enum domain;
int found = 0;
is to simply emit a gcc error. */
TRY
{
- struct symbol *sym;
+ struct block_symbol sym;
sym = lookup_symbol (identifier, context->base.block, domain, NULL);
- if (sym != NULL)
+ if (sym.symbol != NULL)
{
convert_symbol_sym (context, identifier, sym, domain);
found = 1;
END_CATCH
if (compile_debug && !found)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_convert_symbol \"%s\": lookup_symbol failed\n",
identifier);
return;
gcc_symbol_address (void *datum, struct gcc_c_context *gcc_context,
const char *identifier)
{
- struct compile_c_instance *context = datum;
+ struct compile_c_instance *context = (struct compile_c_instance *) datum;
gcc_address result = 0;
int found = 0;
struct symbol *sym;
/* We only need global functions here. */
- sym = lookup_symbol (identifier, NULL, VAR_DOMAIN, NULL);
+ sym = lookup_symbol (identifier, NULL, VAR_DOMAIN, NULL).symbol;
if (sym != NULL && SYMBOL_CLASS (sym) == LOC_BLOCK)
{
if (compile_debug)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_symbol_address \"%s\": full symbol\n",
identifier);
result = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
if (msym.minsym != NULL)
{
if (compile_debug)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_symbol_address \"%s\": minimal "
"symbol\n",
identifier);
END_CATCH
if (compile_debug && !found)
- fprintf_unfiltered (gdb_stdout,
+ fprintf_unfiltered (gdb_stdlog,
"gcc_symbol_address \"%s\": failed\n",
identifier);
return result;
static hashval_t
hash_symname (const void *a)
{
- const struct symbol *sym = a;
+ const struct symbol *sym = (const struct symbol *) a;
return htab_hash_string (SYMBOL_NATURAL_NAME (sym));
}
static int
eq_symname (const void *a, const void *b)
{
- const struct symbol *syma = a;
- const struct symbol *symb = b;
+ const struct symbol *syma = (const struct symbol *) a;
+ const struct symbol *symb = (const struct symbol *) b;
return strcmp (SYMBOL_NATURAL_NAME (syma), SYMBOL_NATURAL_NAME (symb)) == 0;
}
static void
generate_vla_size (struct compile_c_instance *compiler,
- struct ui_file *stream,
+ string_file &stream,
struct gdbarch *gdbarch,
unsigned char *registers_used,
CORE_ADDR pc,
{
type = check_typedef (type);
- if (TYPE_CODE (type) == TYPE_CODE_REF)
+ if (TYPE_IS_REFERENCE (type))
type = check_typedef (TYPE_TARGET_TYPE (type));
switch (TYPE_CODE (type))
|| TYPE_HIGH_BOUND_KIND (type) == PROP_LOCLIST)
{
const struct dynamic_prop *prop = &TYPE_RANGE_DATA (type)->high;
- char *name = c_get_range_decl_name (prop);
- struct cleanup *cleanup = make_cleanup (xfree, name);
+ std::string name = c_get_range_decl_name (prop);
- dwarf2_compile_property_to_c (stream, name,
+ dwarf2_compile_property_to_c (stream, name.c_str (),
gdbarch, registers_used,
prop, pc, sym);
- do_cleanups (cleanup);
}
}
break;
static void
generate_c_for_for_one_variable (struct compile_c_instance *compiler,
- struct ui_file *stream,
+ string_file &stream,
struct gdbarch *gdbarch,
unsigned char *registers_used,
CORE_ADDR pc,
{
if (is_dynamic_type (SYMBOL_TYPE (sym)))
{
- struct ui_file *size_file = mem_fileopen ();
- struct cleanup *cleanup = make_cleanup_ui_file_delete (size_file);
+ /* We need to emit to a temporary buffer in case an error
+ occurs in the middle. */
+ string_file local_file;
- generate_vla_size (compiler, size_file, gdbarch, registers_used, pc,
+ generate_vla_size (compiler, local_file, gdbarch, registers_used, pc,
SYMBOL_TYPE (sym), sym);
- ui_file_put (size_file, ui_file_write_for_put, stream);
- do_cleanups (cleanup);
+ stream.write (local_file.c_str (), local_file.size ());
}
if (SYMBOL_COMPUTED_OPS (sym) != NULL)
{
- char *generated_name = symbol_substitution_name (sym);
- struct cleanup *cleanup = make_cleanup (xfree, generated_name);
+ gdb::unique_xmalloc_ptr<char> generated_name
+ = symbol_substitution_name (sym);
/* We need to emit to a temporary buffer in case an error
occurs in the middle. */
- struct ui_file *local_file = mem_fileopen ();
+ string_file local_file;
- make_cleanup_ui_file_delete (local_file);
SYMBOL_COMPUTED_OPS (sym)->generate_c_location (sym, local_file,
gdbarch,
registers_used,
- pc, generated_name);
- ui_file_put (local_file, ui_file_write_for_put, stream);
-
- do_cleanups (cleanup);
+ pc,
+ generated_name.get ());
+ stream.write (local_file.c_str (), local_file.size ());
}
else
{
unsigned char *
generate_c_for_variable_locations (struct compile_c_instance *compiler,
- struct ui_file *stream,
+ string_file &stream,
struct gdbarch *gdbarch,
const struct block *block,
CORE_ADDR pc)
{
- struct cleanup *cleanup, *outer;
- htab_t symhash;
+ struct cleanup *outer;
const struct block *static_block = block_static_block (block);
unsigned char *registers_used;
/* Ensure that a given name is only entered once. This reflects the
reality of shadowing. */
- symhash = htab_create_alloc (1, hash_symname, eq_symname, NULL,
- xcalloc, xfree);
- cleanup = make_cleanup_htab_delete (symhash);
+ htab_up symhash (htab_create_alloc (1, hash_symname, eq_symname, NULL,
+ xcalloc, xfree));
while (1)
{
sym != NULL;
sym = block_iterator_next (&iter))
{
- if (!symbol_seen (symhash, sym))
+ if (!symbol_seen (symhash.get (), sym))
generate_c_for_for_one_variable (compiler, stream, gdbarch,
registers_used, pc, sym);
}
block = BLOCK_SUPERBLOCK (block);
}
- do_cleanups (cleanup);
discard_cleanups (outer);
return registers_used;
}
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