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Change some arguments to gdb::string_view instead of name+len 

Just some code cleanup. This change has a few benefits:
- Shorter argument list in the functions
- If the caller needs to calculate the string, they no longer
  need to explicitly call strlen
- It is easy to pass std::string to this (done in one place
  currently)

This also updates a couple of places that were passing 0/1 to
a bool parameter.

gdb/ChangeLog:

2019-10-29  Christian Biesinger  <cbiesinger@google.com>

	* coffread.c (record_minimal_symbol): Update.
	(process_coff_symbol): Update.
	* dbxread.c (read_dbx_symtab): Update.
	* dwarf2read.c (add_partial_symbol): Update.
	(fixup_go_packaging): Update.
	(load_partial_dies): Update.
	(new_symbol): Update.
	* elfread.c (record_minimal_symbol): Change signature to use
	gdb::string_view instead of name+len.
	(elf_symtab_read): Update.
	(elf_rel_plt_read): Update.
	* mdebugread.c (parse_partial_symbols): Update.
	(handle_psymbol_enumerators): Update.
	(new_symbol): Update.
	* minsyms.c (minimal_symbol_reader::record_full): Change signature
	to use gdb::string_view instead of name+len.
	* minsyms.h (class minimal_symbol_reader) <record_full>: Likewise.
	* psympriv.h (add_psymbol_to_list): Likewise.
	* psymtab.c (add_psymbol_to_bcache): Likewise.
	(add_psymbol_to_list): Likewise.
	* stabsread.c (define_symbol): Update.
	* symtab.c (symbol_set_names): Change signature to use gdb::string_view.
	* symtab.h (SYMBOL_SET_NAMES): Likewise.
	(symbol_set_names): Likewise.
	* xcoffread.c (scan_xcoff_symtab): Update.

Change-Id: I2675c6865e0368f9c755a1081088a53aa54dda4c
This commit is contained in:
Christian Biesinger 2019-10-13 06:57:14 -05:00
parent 0c921b219c
commit 31edb80295
15 changed files with 188 additions and 147 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
gdb/ChangeLog
View File

@ -1,3 +1,31 @@
2019-10-29 Christian Biesinger <cbiesinger@google.com>
* coffread.c (record_minimal_symbol): Update.
(process_coff_symbol): Update.
* dbxread.c (read_dbx_symtab): Update.
* dwarf2read.c (add_partial_symbol): Update.
(fixup_go_packaging): Update.
(load_partial_dies): Update.
(new_symbol): Update.
* elfread.c (record_minimal_symbol): Change signature to use
gdb::string_view instead of name+len.
(elf_symtab_read): Update.
(elf_rel_plt_read): Update.
* mdebugread.c (parse_partial_symbols): Update.
(handle_psymbol_enumerators): Update.
(new_symbol): Update.
* minsyms.c (minimal_symbol_reader::record_full): Change signature
to use gdb::string_view instead of name+len.
* minsyms.h (class minimal_symbol_reader) <record_full>: Likewise.
* psympriv.h (add_psymbol_to_list): Likewise.
* psymtab.c (add_psymbol_to_bcache): Likewise.
(add_psymbol_to_list): Likewise.
* stabsread.c (define_symbol): Update.
* symtab.c (symbol_set_names): Change signature to use gdb::string_view.
* symtab.h (SYMBOL_SET_NAMES): Likewise.
(symbol_set_names): Likewise.
* xcoffread.c (scan_xcoff_symtab): Update.
2019-10-29 Christian Biesinger <cbiesinger@google.com>
* symtab.h (symbol_set_names): Document that copy_name must be

5
gdb/coffread.c
View File

@ -462,8 +462,7 @@ record_minimal_symbol (minimal_symbol_reader &reader,
return NULL;
}
return reader.record_full (cs->c_name, strlen (cs->c_name), true, address,
type, section);
return reader.record_full (cs->c_name, true, address, type, section);
}
/* coff_symfile_init ()
@ -1569,7 +1568,7 @@ process_coff_symbol (struct coff_symbol *cs,
name = EXTERNAL_NAME (name, objfile->obfd);
SYMBOL_SET_LANGUAGE (sym, get_current_subfile ()->language,
&objfile->objfile_obstack);
SYMBOL_SET_NAMES (sym, name, strlen (name), 1, objfile);
SYMBOL_SET_NAMES (sym, name, true, objfile);
/* default assumptions */
SYMBOL_VALUE (sym) = cs->c_value;

14
gdb/ctfread.c
View File

@ -380,7 +380,7 @@ ctf_add_enum_member_cb (const char *name, int enum_value, void *arg)
OBJSTAT (ccp->of, n_syms++);
SYMBOL_SET_LANGUAGE (sym, language_c, &ccp->of->objfile_obstack);
SYMBOL_SET_NAMES (sym, name, strlen (name), 0, ccp->of);
SYMBOL_SET_NAMES (sym, name, false, ccp->of);
SYMBOL_ACLASS_INDEX (sym) = LOC_CONST;
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
SYMBOL_TYPE (sym) = fip->ptype;
@ -409,7 +409,7 @@ new_symbol (ctf_context_t *ccp, struct type *type, ctf_id_t tid)
OBJSTAT (objfile, n_syms++);
SYMBOL_SET_LANGUAGE (sym, language_c, &objfile->objfile_obstack);
SYMBOL_SET_NAMES (sym, name.get (), strlen (name.get ()), 1, objfile);
SYMBOL_SET_NAMES (sym, name.get (), true, objfile);
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
SYMBOL_ACLASS_INDEX (sym) = LOC_OPTIMIZED_OUT;
@ -1029,7 +1029,7 @@ ctf_add_var_cb (const char *name, ctf_id_t id, void *arg)
if (type)
{
sym = new_symbol (ccp, type, id);
SYMBOL_SET_NAMES (sym, name, strlen (name), 0, ccp->of);
SYMBOL_SET_NAMES (sym, name, false, ccp->of);
}
break;
case CTF_K_STRUCT:
@ -1045,7 +1045,7 @@ ctf_add_var_cb (const char *name, ctf_id_t id, void *arg)
SYMBOL_TYPE (sym) = type;
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
SYMBOL_ACLASS_INDEX (sym) = LOC_OPTIMIZED_OUT;
SYMBOL_SET_NAMES (sym, name, strlen (name), 0, ccp->of);
SYMBOL_SET_NAMES (sym, name, false, ccp->of);
add_symbol_to_list (sym, ccp->builder->get_global_symbols ());
break;
default:
@ -1365,7 +1365,7 @@ ctf_psymtab_type_cb (ctf_id_t tid, void *arg)
return 0;
}
add_psymbol_to_list (name.get (), strlen (name.get ()), true,
add_psymbol_to_list (name.get (), true,
domain, aclass, section,
psymbol_placement::GLOBAL,
0, language_c, ccp->of);
@ -1380,7 +1380,7 @@ ctf_psymtab_var_cb (const char *name, ctf_id_t id, void *arg)
{
ctf_context_t *ccp = (ctf_context_t *) arg;
add_psymbol_to_list (name, strlen (name), true,
add_psymbol_to_list (name, true,
VAR_DOMAIN, LOC_STATIC, -1,
psymbol_placement::GLOBAL,
0, language_c, ccp->of);
@ -1445,7 +1445,7 @@ scan_partial_symbols (ctf_file_t *cfp, struct objfile *of)
else
aclass = LOC_TYPEDEF;
add_psymbol_to_list (tname.get (), strlen (tname.get ()), true,
add_psymbol_to_list (tname.get (), true,
tdomain, aclass, -1,
psymbol_placement::STATIC,
0, language_c, of);

24
gdb/dbxread.c
View File

@ -1464,7 +1464,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
if (gdbarch_static_transform_name_p (gdbarch))
gdbarch_static_transform_name (gdbarch, namestring);
add_psymbol_to_list (sym_name, sym_len, true,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len), true,
VAR_DOMAIN, LOC_STATIC,
data_sect_index,
psymbol_placement::STATIC,
@ -1474,7 +1474,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
case 'G':
/* The addresses in these entries are reported to be
wrong. See the code that reads 'G's for symtabs. */
add_psymbol_to_list (sym_name, sym_len, true,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len), true,
VAR_DOMAIN, LOC_STATIC,
data_sect_index,
psymbol_placement::GLOBAL,
@ -1492,15 +1492,15 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
|| (p == namestring + 1
&& namestring[0] != ' '))
{
add_psymbol_to_list (sym_name, sym_len, true,
STRUCT_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len),
true, STRUCT_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
if (p[2] == 't')
{
/* Also a typedef with the same name. */
add_psymbol_to_list (sym_name, sym_len, true,
VAR_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
p += 1;
@ -1511,8 +1511,8 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
case 't':
if (p != namestring) /* a name is there, not just :T... */
{
add_psymbol_to_list (sym_name, sym_len, true,
VAR_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
}
@ -1572,7 +1572,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
;
/* Note that the value doesn't matter for
enum constants in psymtabs, just in symtabs. */
add_psymbol_to_list (p, q - p, true,
add_psymbol_to_list (gdb::string_view (p, q - p), true,
VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC, 0,
psymtab_language, objfile);
@ -1590,7 +1590,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
case 'c':
/* Constant, e.g. from "const" in Pascal. */
add_psymbol_to_list (sym_name, sym_len, true,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len), true,
VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC, 0,
psymtab_language, objfile);
@ -1645,7 +1645,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
pst->set_text_low (nlist.n_value);
textlow_not_set = 0;
}
add_psymbol_to_list (sym_name, sym_len, true,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len), true,
VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::STATIC,
@ -1704,7 +1704,7 @@ read_dbx_symtab (minimal_symbol_reader &reader, struct objfile *objfile)
pst->set_text_low (nlist.n_value);
textlow_not_set = 0;
}
add_psymbol_to_list (sym_name, sym_len, true,
add_psymbol_to_list (gdb::string_view (sym_name, sym_len), true,
VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::GLOBAL,

29
gdb/dwarf2read.c
View File

@ -8952,7 +8952,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
But in Ada and Fortran, we want to be able to access nested
procedures globally. So all Ada and Fortran subprograms are
stored in the global scope. */
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
@ -8962,7 +8962,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
}
else
{
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
@ -8974,7 +8974,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
set_objfile_main_name (objfile, actual_name, cu->language);
break;
case DW_TAG_constant:
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL, VAR_DOMAIN, LOC_STATIC,
-1, (pdi->is_external
? psymbol_placement::GLOBAL
@ -9010,7 +9010,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
table building. */
if (pdi->d.locdesc || pdi->has_type)
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_STATIC,
SECT_OFF_TEXT (objfile),
@ -9029,7 +9029,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
return;
}
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_STATIC,
SECT_OFF_TEXT (objfile),
@ -9041,7 +9041,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
case DW_TAG_typedef:
case DW_TAG_base_type:
case DW_TAG_subrange_type:
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
@ -9049,7 +9049,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
break;
case DW_TAG_imported_declaration:
case DW_TAG_namespace:
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::GLOBAL,
@ -9060,7 +9060,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
available without any name. If so, we skip the module as it
doesn't bring any value. */
if (actual_name != nullptr)
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
MODULE_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::GLOBAL,
@ -9084,7 +9084,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
/* NOTE: carlton/2003-10-07: See comment in new_symbol about
static vs. global. */
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
STRUCT_DOMAIN, LOC_TYPEDEF, -1,
cu->language == language_cplus
@ -9094,7 +9094,7 @@ add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
break;
case DW_TAG_enumerator:
add_psymbol_to_list (actual_name, strlen (actual_name),
add_psymbol_to_list (actual_name,
built_actual_name != NULL,
VAR_DOMAIN, LOC_CONST, -1,
cu->language == language_cplus
@ -9924,8 +9924,7 @@ fixup_go_packaging (struct dwarf2_cu *cu)
sym = allocate_symbol (objfile);
SYMBOL_SET_LANGUAGE (sym, language_go, &objfile->objfile_obstack);
SYMBOL_SET_NAMES (sym, saved_package_name,
strlen (saved_package_name), 0, objfile);
SYMBOL_SET_NAMES (sym, saved_package_name, false, objfile);
/* This is not VAR_DOMAIN because we want a way to ensure a lookup of,
e.g., "main" finds the "main" module and not C's main(). */
SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
@ -18566,7 +18565,7 @@ load_partial_dies (const struct die_reader_specs *reader,
|| pdi.tag == DW_TAG_subrange_type))
{
if (building_psymtab && pdi.name != NULL)
add_psymbol_to_list (pdi.name, strlen (pdi.name), false,
add_psymbol_to_list (pdi.name, false,
VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, cu->language, objfile);
@ -18600,7 +18599,7 @@ load_partial_dies (const struct die_reader_specs *reader,
if (pdi.name == NULL)
complaint (_("malformed enumerator DIE ignored"));
else if (building_psymtab)
add_psymbol_to_list (pdi.name, strlen (pdi.name), false,
add_psymbol_to_list (pdi.name, false,
VAR_DOMAIN, LOC_CONST, -1,
cu->language == language_cplus
? psymbol_placement::GLOBAL
@ -21606,7 +21605,7 @@ new_symbol (struct die_info *die, struct type *type, struct dwarf2_cu *cu,
/* Cache this symbol's name and the name's demangled form (if any). */
SYMBOL_SET_LANGUAGE (sym, cu->language, &objfile->objfile_obstack);
linkagename = dwarf2_physname (name, die, cu);
SYMBOL_SET_NAMES (sym, linkagename, strlen (linkagename), 0, objfile);
SYMBOL_SET_NAMES (sym, linkagename, false, objfile);
/* Fortran does not have mangling standard and the mangling does differ
between gfortran, iFort etc. */

25
gdb/elfread.c
View File

@ -48,6 +48,7 @@
#include "auxv.h"
#include "mdebugread.h"
#include "ctfread.h"
#include "gdbsupport/gdb_string_view.h"
/* Forward declarations. */
extern const struct sym_fns elf_sym_fns_gdb_index;
@ -198,7 +199,7 @@ elf_locate_sections (bfd *ignore_abfd, asection *sectp, void *eip)
static struct minimal_symbol *
record_minimal_symbol (minimal_symbol_reader &reader,
const char *name, int name_len, bool copy_name,
gdb::string_view name, bool copy_name,
CORE_ADDR address,
enum minimal_symbol_type ms_type,
asection *bfd_section, struct objfile *objfile)
@ -210,7 +211,7 @@ record_minimal_symbol (minimal_symbol_reader &reader,
address = gdbarch_addr_bits_remove (gdbarch, address);
struct minimal_symbol *result
= reader.record_full (name, name_len, copy_name, address,
= reader.record_full (name, copy_name, address,
ms_type,
gdb_bfd_section_index (objfile->obfd,
bfd_section));
@ -330,7 +331,7 @@ elf_symtab_read (minimal_symbol_reader &reader,
continue;
msym = record_minimal_symbol
(reader, sym->name, strlen (sym->name), copy_names,
(reader, sym->name, copy_names,
symaddr, mst_solib_trampoline, sect, objfile);
if (msym != NULL)
{
@ -474,7 +475,7 @@ elf_symtab_read (minimal_symbol_reader &reader,
continue; /* Skip this symbol. */
}
msym = record_minimal_symbol
(reader, sym->name, strlen (sym->name), copy_names, symaddr,
(reader, sym->name, copy_names, symaddr,
ms_type, sym->section, objfile);
if (msym)
@ -503,8 +504,10 @@ elf_symtab_read (minimal_symbol_reader &reader,
{
int len = atsign - sym->name;
record_minimal_symbol (reader, sym->name, len, true, symaddr,
ms_type, sym->section, objfile);
record_minimal_symbol (reader,
gdb::string_view (sym->name, len),
true, symaddr, ms_type, sym->section,
objfile);
}
}
@ -520,10 +523,9 @@ elf_symtab_read (minimal_symbol_reader &reader,
{
struct minimal_symbol *mtramp;
mtramp = record_minimal_symbol (reader, sym->name, len - 4,
true, symaddr,
mst_solib_trampoline,
sym->section, objfile);
mtramp = record_minimal_symbol
(reader, gdb::string_view (sym->name, len - 4), true,
symaddr, mst_solib_trampoline, sym->section, objfile);
if (mtramp)
{
SET_MSYMBOL_SIZE (mtramp, MSYMBOL_SIZE (msym));
@ -639,8 +641,7 @@ elf_rel_plt_read (minimal_symbol_reader &reader,
string_buffer.assign (name);
string_buffer.append (got_suffix, got_suffix + got_suffix_len);
msym = record_minimal_symbol (reader, string_buffer.c_str (),
string_buffer.size (),
msym = record_minimal_symbol (reader, string_buffer,
true, address, mst_slot_got_plt,
msym_section, objfile);
if (msym)

80
gdb/mdebugread.c
View File

@ -3050,8 +3050,9 @@ parse_partial_symbols (minimal_symbol_reader &reader,
namestring = gdbarch_static_transform_name
(gdbarch, namestring);
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_STATIC,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_STATIC,
SECT_OFF_DATA (objfile),
psymbol_placement::STATIC,
sh.value,
@ -3061,8 +3062,9 @@ parse_partial_symbols (minimal_symbol_reader &reader,
/* The addresses in these entries are reported
to be wrong. See the code that reads 'G's
for symtabs. */
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_STATIC,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_STATIC,
SECT_OFF_DATA (objfile),
psymbol_placement::GLOBAL,
sh.value,
@ -3080,21 +3082,20 @@ parse_partial_symbols (minimal_symbol_reader &reader,
|| (p == namestring + 1
&& namestring[0] != ' '))
{
add_psymbol_to_list (namestring, p - namestring, true,
STRUCT_DOMAIN, LOC_TYPEDEF,
-1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
add_psymbol_to_list
(gdb::string_view (namestring, p - namestring),
true, STRUCT_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC, 0, psymtab_language,
objfile);
if (p[2] == 't')
{
/* Also a typedef with the same name. */
add_psymbol_to_list (namestring,
p - namestring, true,
VAR_DOMAIN, LOC_TYPEDEF,
-1,
psymbol_placement::STATIC,
0, psymtab_language,
objfile);
add_psymbol_to_list
(gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC, 0,
psymtab_language, objfile);
p += 1;
}
}
@ -3103,11 +3104,12 @@ parse_partial_symbols (minimal_symbol_reader &reader,
if (p != namestring) /* a name is there, not
just :T... */
{
add_psymbol_to_list (namestring, p - namestring,
true, VAR_DOMAIN, LOC_TYPEDEF,
-1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
add_psymbol_to_list
(gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC, 0, psymtab_language,
objfile);
}
check_enum:
/* If this is an enumerated type, we need to add
@ -3168,9 +3170,10 @@ parse_partial_symbols (minimal_symbol_reader &reader,
/* Note that the value doesn't matter for
enum constants in psymtabs, just in
symtabs. */
add_psymbol_to_list (p, q - p, true,
VAR_DOMAIN, LOC_CONST,
-1,
add_psymbol_to_list (gdb::string_view (p,
q - p),
true, VAR_DOMAIN,
LOC_CONST, -1,
psymbol_placement::STATIC,
0, psymtab_language,
objfile);
@ -3187,8 +3190,9 @@ parse_partial_symbols (minimal_symbol_reader &reader,
continue;
case 'c':
/* Constant, e.g. from "const" in Pascal. */
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_CONST, -1,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
continue;
@ -3200,8 +3204,9 @@ parse_partial_symbols (minimal_symbol_reader &reader,
function_outside_compilation_unit_complaint
(copy.c_str ());
}
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_BLOCK,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::STATIC,
sh.value,
@ -3219,8 +3224,9 @@ parse_partial_symbols (minimal_symbol_reader &reader,
function_outside_compilation_unit_complaint
(copy.c_str ());
}
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_BLOCK,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::GLOBAL,
sh.value,
@ -3454,13 +3460,13 @@ parse_partial_symbols (minimal_symbol_reader &reader,
symbol table, and the MAIN__ symbol via the minimal
symbol table. */
if (sh.st == stProc)
add_psymbol_to_list (sym_name, strlen (sym_name), true,
add_psymbol_to_list (sym_name, true,
VAR_DOMAIN, LOC_BLOCK,
section,
psymbol_placement::GLOBAL,
sh.value, psymtab_language, objfile);
else
add_psymbol_to_list (sym_name, strlen (sym_name), true,
add_psymbol_to_list (sym_name, true,
VAR_DOMAIN, LOC_BLOCK,
section,
psymbol_placement::STATIC,
@ -3527,7 +3533,7 @@ parse_partial_symbols (minimal_symbol_reader &reader,
&& sh.iss != 0
&& sh.index != cur_sdx + 2)
{
add_psymbol_to_list (sym_name, strlen (sym_name), true,
add_psymbol_to_list (sym_name, true,
STRUCT_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
@ -3567,7 +3573,7 @@ parse_partial_symbols (minimal_symbol_reader &reader,
continue;
}
/* Use this gdb symbol. */
add_psymbol_to_list (sym_name, strlen (sym_name), true,
add_psymbol_to_list (sym_name, true,
VAR_DOMAIN, theclass, section,
psymbol_placement::STATIC,
sh.value, psymtab_language, objfile);
@ -3646,7 +3652,7 @@ parse_partial_symbols (minimal_symbol_reader &reader,
break;
}
char *sym_name = debug_info->ssext + psh->iss;
add_psymbol_to_list (sym_name, strlen (sym_name), true,
add_psymbol_to_list (sym_name, true,
VAR_DOMAIN, theclass,
section,
psymbol_placement::GLOBAL,
@ -3809,7 +3815,7 @@ handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype,
/* Note that the value doesn't matter for enum constants
in psymtabs, just in symtabs. */
add_psymbol_to_list (name, strlen (name), true,
add_psymbol_to_list (name, true,
VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC, 0,
psymtab_language, objfile);
@ -4758,7 +4764,7 @@ new_symbol (const char *name)
SYMBOL_SET_LANGUAGE (s, psymtab_language,
&mdebugread_objfile->objfile_obstack);
SYMBOL_SET_NAMES (s, name, strlen (name), 1, mdebugread_objfile);
SYMBOL_SET_NAMES (s, name, true, mdebugread_objfile);
return s;
}

18
gdb/minsyms.c
View File

@ -1086,7 +1086,7 @@ mst_str (minimal_symbol_type t)
/* See minsyms.h. */
struct minimal_symbol *
minimal_symbol_reader::record_full (const char *name, int name_len,
minimal_symbol_reader::record_full (gdb::string_view name,
bool copy_name, CORE_ADDR address,
enum minimal_symbol_type ms_type,
int section)
@ -1100,24 +1100,22 @@ minimal_symbol_reader::record_full (const char *name, int name_len,
lookup_minimal_symbol_by_pc would have no way of getting the
right one. */
if (ms_type == mst_file_text && name[0] == 'g'
&& (strcmp (name, GCC_COMPILED_FLAG_SYMBOL) == 0
|| strcmp (name, GCC2_COMPILED_FLAG_SYMBOL) == 0))
&& (name == GCC_COMPILED_FLAG_SYMBOL
|| name == GCC2_COMPILED_FLAG_SYMBOL))
return (NULL);
/* It's safe to strip the leading char here once, since the name
is also stored stripped in the minimal symbol table. */
if (name[0] == get_symbol_leading_char (m_objfile->obfd))
{
++name;
--name_len;
}
name = name.substr (1);
if (ms_type == mst_file_text && startswith (name, "__gnu_compiled"))
return (NULL);
if (symtab_create_debug >= 2)
printf_unfiltered ("Recording minsym: %-21s %18s %4d %s\n",
mst_str (ms_type), hex_string (address), section, name);
printf_unfiltered ("Recording minsym: %-21s %18s %4d %.*s\n",
mst_str (ms_type), hex_string (address), section,
(int) name.size (), name.data ());
if (m_msym_bunch_index == BUNCH_SIZE)
{
@ -1129,7 +1127,7 @@ minimal_symbol_reader::record_full (const char *name, int name_len,
msymbol = &m_msym_bunch->contents[m_msym_bunch_index];
symbol_set_language (msymbol, language_auto,
&m_objfile->per_bfd->storage_obstack);
symbol_set_names (msymbol, name, name_len, copy_name, m_objfile->per_bfd);
symbol_set_names (msymbol, name, copy_name, m_objfile->per_bfd);
SET_MSYMBOL_VALUE_ADDRESS (msymbol, address);
MSYMBOL_SECTION (msymbol) = section;

10
gdb/minsyms.h
View File

@ -88,7 +88,6 @@ class minimal_symbol_reader
Arguments are:
NAME - the symbol's name
NAME_LEN - the length of the name
COPY_NAME - if true, the minsym code must make a copy of NAME. If
false, then NAME must be NUL-terminated, and must have a lifetime
that is at least as long as OBJFILE's lifetime.
@ -97,15 +96,14 @@ class minimal_symbol_reader
SECTION - the symbol's section
*/
struct minimal_symbol *record_full (const char *name,
int name_len,
struct minimal_symbol *record_full (gdb::string_view name,
bool copy_name,
CORE_ADDR address,
enum minimal_symbol_type ms_type,
int section);
/* Like record_full, but:
- uses strlen to compute NAME_LEN,
- computes the length of NAME
- passes COPY_NAME = true,
- and passes a default SECTION, depending on the type
@ -115,7 +113,7 @@ class minimal_symbol_reader
enum minimal_symbol_type ms_type);
/* Like record_full, but:
- uses strlen to compute NAME_LEN,
- computes the length of NAME
- passes COPY_NAME = true.
This variant does not return the new symbol. */
@ -124,7 +122,7 @@ class minimal_symbol_reader
enum minimal_symbol_type ms_type,
int section)
{
record_full (name, strlen (name), true, address, ms_type, section);
record_full (name, true, address, ms_type, section);
}
private:

3
gdb/psympriv.h
View File

@ -22,6 +22,7 @@
#include "psymtab.h"
#include "objfiles.h"
#include "gdbsupport/gdb_string_view.h"
/* A partial_symbol records the name, domain, and address class of
symbols whose types we have not parsed yet. For functions, it also
@ -304,7 +305,7 @@ enum class psymbol_placement
LANGUAGE is the language from which the symbol originates. This will
influence, amongst other things, how the symbol name is demangled. */
extern void add_psymbol_to_list (const char *name, int namelength,
extern void add_psymbol_to_list (gdb::string_view name,
bool copy_name, domain_enum domain,
enum address_class theclass,
short section,

8
gdb/psymtab.c
View File

@ -1568,7 +1568,7 @@ psymbol_compare (const void *addr1, const void *addr2, int length)
different domain (or address) is possible and correct. */
static struct partial_symbol *
add_psymbol_to_bcache (const char *name, int namelength, bool copy_name,
add_psymbol_to_bcache (gdb::string_view name, bool copy_name,
domain_enum domain,
enum address_class theclass,
short section,
@ -1585,7 +1585,7 @@ add_psymbol_to_bcache (const char *name, int namelength, bool copy_name,
psymbol.aclass = theclass;
symbol_set_language (&psymbol.ginfo, language,
objfile->partial_symtabs->obstack ());
symbol_set_names (&psymbol.ginfo, name, namelength, copy_name,
symbol_set_names (&psymbol.ginfo, name, copy_name,
objfile->per_bfd);
/* Stash the partial symbol away in the cache. */
@ -1608,7 +1608,7 @@ append_psymbol_to_list (std::vector<partial_symbol *> *list,
/* See psympriv.h. */
void
add_psymbol_to_list (const char *name, int namelength, bool copy_name,
add_psymbol_to_list (gdb::string_view name, bool copy_name,
domain_enum domain,
enum address_class theclass,
short section,
@ -1621,7 +1621,7 @@ add_psymbol_to_list (const char *name, int namelength, bool copy_name,
int added;
/* Stash the partial symbol away in the cache. */
psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, theclass,
psym = add_psymbol_to_bcache (name, copy_name, domain, theclass,
section, coreaddr, language, objfile, &added);
/* Do not duplicate global partial symbols. */

5
gdb/stabsread.c
View File

@ -752,11 +752,12 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
if (!new_name.empty ())
{
SYMBOL_SET_NAMES (sym,
new_name.c_str (), new_name.length (),
new_name,
1, objfile);
}
else
SYMBOL_SET_NAMES (sym, string, p - string, 1, objfile);
SYMBOL_SET_NAMES (sym, gdb::string_view (string, p - string), true,
objfile);
if (SYMBOL_LANGUAGE (sym) == language_cplus)
cp_scan_for_anonymous_namespaces (get_buildsym_compunit (), sym,

37
gdb/symtab.c
View File

@ -828,7 +828,7 @@ symbol_find_demangled_name (struct general_symbol_info *gsymbol,
void
symbol_set_names (struct general_symbol_info *gsymbol,
const char *linkage_name, int len, bool copy_name,
gdb::string_view linkage_name, bool copy_name,
struct objfile_per_bfd_storage *per_bfd)
{
struct demangled_name_entry **slot;
@ -838,14 +838,14 @@ symbol_set_names (struct general_symbol_info *gsymbol,
/* In Ada, we do the symbol lookups using the mangled name, so
we can save some space by not storing the demangled name. */
if (!copy_name)
gsymbol->name = linkage_name;
gsymbol->name = linkage_name.data ();
else
{
char *name = (char *) obstack_alloc (&per_bfd->storage_obstack,
len + 1);
linkage_name.length () + 1);
memcpy (name, linkage_name, len);
name[len] = '\0';
memcpy (name, linkage_name.data (), linkage_name.length ());
name[linkage_name.length ()] = '\0';
gsymbol->name = name;
}
symbol_set_demangled_name (gsymbol, NULL, &per_bfd->storage_obstack);
@ -856,7 +856,7 @@ symbol_set_names (struct general_symbol_info *gsymbol,
if (per_bfd->demangled_names_hash == NULL)
create_demangled_names_hash (per_bfd);
struct demangled_name_entry entry (gdb::string_view (linkage_name, len));
struct demangled_name_entry entry (linkage_name);
slot = ((struct demangled_name_entry **)
htab_find_slot (per_bfd->demangled_names_hash.get (),
&entry, INSERT));
@ -870,20 +870,21 @@ symbol_set_names (struct general_symbol_info *gsymbol,
/* A 0-terminated copy of the linkage name. Callers must set COPY_NAME
to true if the string might not be nullterminated. We have to make
this copy because demangling needs a nullterminated string. */
const char *linkage_name_copy;
gdb::string_view linkage_name_copy;
if (copy_name)
{
char *alloc_name = (char *) alloca (len + 1);
memcpy (alloc_name, linkage_name, len);
alloc_name[len] = '\0';
char *alloc_name = (char *) alloca (linkage_name.length () + 1);
memcpy (alloc_name, linkage_name.data (), linkage_name.length ());
alloc_name[linkage_name.length ()] = '\0';
linkage_name_copy = alloc_name;
linkage_name_copy = gdb::string_view (alloc_name,
linkage_name.length ());
}
else
linkage_name_copy = linkage_name;
gdb::unique_xmalloc_ptr<char> demangled_name_ptr
(symbol_find_demangled_name (gsymbol, linkage_name_copy));
(symbol_find_demangled_name (gsymbol, linkage_name_copy.data ()));
/* Suppose we have demangled_name==NULL, copy_name==0, and
linkage_name_copy==linkage_name. In this case, we already have the
@ -900,8 +901,7 @@ symbol_set_names (struct general_symbol_info *gsymbol,
= ((struct demangled_name_entry *)
obstack_alloc (&per_bfd->storage_obstack,
sizeof (demangled_name_entry)));
new (*slot) demangled_name_entry
(gdb::string_view (linkage_name, len));
new (*slot) demangled_name_entry (linkage_name);
}
else
{
@ -910,12 +910,13 @@ symbol_set_names (struct general_symbol_info *gsymbol,
*slot
= ((struct demangled_name_entry *)
obstack_alloc (&per_bfd->storage_obstack,
sizeof (demangled_name_entry) + len + 1));
sizeof (demangled_name_entry)
+ linkage_name.length () + 1));
char *mangled_ptr = reinterpret_cast<char *> (*slot + 1);
memcpy (mangled_ptr, linkage_name, len);
mangled_ptr [len] = '\0';
memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ());
mangled_ptr [linkage_name.length ()] = '\0';
new (*slot) demangled_name_entry
(gdb::string_view (mangled_ptr, len));
(gdb::string_view (mangled_ptr, linkage_name.length ()));
}
(*slot)->demangled = std::move (demangled_name_ptr);
(*slot)->language = gsymbol->language;

7
gdb/symtab.h
View File

@ -29,6 +29,7 @@
#include "gdbsupport/enum-flags.h"
#include "gdbsupport/function-view.h"
#include "gdbsupport/gdb_optional.h"
#include "gdbsupport/gdb_string_view.h"
#include "gdbsupport/next-iterator.h"
#include "completer.h"
@ -506,11 +507,11 @@ extern void symbol_set_language (struct general_symbol_info *symbol,
/* Set the linkage and natural names of a symbol, by demangling
the linkage name. If linkage_name may not be nullterminated,
copy_name must be set to true. */
#define SYMBOL_SET_NAMES(symbol,linkage_name,len,copy_name,objfile) \
symbol_set_names (&(symbol)->ginfo, linkage_name, len, copy_name, \
#define SYMBOL_SET_NAMES(symbol,linkage_name,copy_name,objfile) \
symbol_set_names (&(symbol)->ginfo, linkage_name, copy_name, \
(objfile)->per_bfd)
extern void symbol_set_names (struct general_symbol_info *symbol,
const char *linkage_name, int len, bool copy_name,
gdb::string_view linkage_name, bool copy_name,
struct objfile_per_bfd_storage *per_bfd);
/* Now come lots of name accessor macros. Short version as to when to

42
gdb/xcoffread.c
View File

@ -2634,8 +2634,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
namestring = gdbarch_static_transform_name
(gdbarch, namestring);
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_STATIC,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_STATIC,
SECT_OFF_DATA (objfile),
psymbol_placement::STATIC,
symbol.n_value,
@ -2645,8 +2646,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
case 'G':
/* The addresses in these entries are reported to be
wrong. See the code that reads 'G's for symtabs. */
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_STATIC,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_STATIC,
SECT_OFF_DATA (objfile),
psymbol_placement::GLOBAL,
symbol.n_value,
@ -2664,15 +2666,17 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
|| (p == namestring + 1
&& namestring[0] != ' '))
{
add_psymbol_to_list (namestring, p - namestring, true,
STRUCT_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, STRUCT_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
if (p[2] == 't')
{
/* Also a typedef with the same name. */
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
p += 1;
@ -2683,8 +2687,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
case 't':
if (p != namestring) /* a name is there, not just :T... */
{
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_TYPEDEF, -1,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_TYPEDEF, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
}
@ -2745,7 +2750,7 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
;
/* Note that the value doesn't matter for
enum constants in psymtabs, just in symtabs. */
add_psymbol_to_list (p, q - p, true,
add_psymbol_to_list (gdb::string_view (p, q - p), true,
VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
@ -2763,8 +2768,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
case 'c':
/* Constant, e.g. from "const" in Pascal. */
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_CONST, -1,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_CONST, -1,
psymbol_placement::STATIC,
0, psymtab_language, objfile);
continue;
@ -2780,8 +2786,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
function_outside_compilation_unit_complaint (name);
xfree (name);
}
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_BLOCK,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::STATIC,
symbol.n_value,
@ -2810,8 +2817,9 @@ scan_xcoff_symtab (minimal_symbol_reader &reader,
if (startswith (namestring, "@FIX"))
continue;
add_psymbol_to_list (namestring, p - namestring, true,
VAR_DOMAIN, LOC_BLOCK,
add_psymbol_to_list (gdb::string_view (namestring,
p - namestring),
true, VAR_DOMAIN, LOC_BLOCK,
SECT_OFF_TEXT (objfile),
psymbol_placement::GLOBAL,
symbol.n_value,