/* Read ELF (Executable and Linking Format) object files for GDB.
- Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ Copyright (C) 1991-2019 Free Software Foundation, Inc.
Written by Fred Fish at Cygnus Support.
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
-#include "buildsym.h"
#include "stabsread.h"
#include "gdb-stabs.h"
#include "complaints.h"
#include "value.h"
#include "infcall.h"
#include "gdbthread.h"
+#include "inferior.h"
#include "regcache.h"
#include "bcache.h"
#include "gdb_bfd.h"
#include "build-id.h"
#include "location.h"
#include "auxv.h"
+#include "mdebugread.h"
/* Forward declarations. */
extern const struct sym_fns elf_sym_fns_gdb_index;
asection *mdebugsect; /* Section pointer for .mdebug section */
};
+/* Type for per-BFD data. */
+
+typedef std::vector<std::unique_ptr<probe>> elfread_data;
+
/* Per-BFD data for probe info. */
-static const struct bfd_data *probe_key = NULL;
+static const struct bfd_key<elfread_data> probe_key;
/* Minimal symbols located at the GOT entries for .plt - that is the real
pointer where the given entry will jump to. It gets updated by the real
for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next)
{
int j;
- CORE_ADDR vma;
if ((bfd_get_section_flags (abfd, sect) & SEC_ALLOC) == 0)
continue;
- vma = bfd_get_section_vma (abfd, sect);
+ Elf_Internal_Shdr *this_hdr = &elf_section_data (sect)->this_hdr;
for (j = 0; j < num_segments; j++)
- if (segments[j]->p_memsz > 0
- && vma >= segments[j]->p_vaddr
- && (vma - segments[j]->p_vaddr) < segments[j]->p_memsz)
+ if (ELF_SECTION_IN_SEGMENT (this_hdr, segments[j]))
{
data->segment_info[i] = j + 1;
break;
if (sym->flags & BSF_FILE)
{
filesymname
- = (const char *) bcache (sym->name, strlen (sym->name) + 1,
- objfile->per_bfd->filename_cache);
+ = ((const char *) objfile->per_bfd->filename_cache.insert
+ (sym->name, strlen (sym->name) + 1));
}
else if (sym->flags & BSF_SECTION_SYM)
continue;
/* The data pointer is htab_t for gnu_ifunc_record_cache_unchecked. */
-static const struct objfile_data *elf_objfile_gnu_ifunc_cache_data;
+static const struct objfile_key<htab, htab_deleter>
+ elf_objfile_gnu_ifunc_cache_data;
/* Map function names to CORE_ADDR in elf_objfile_gnu_ifunc_cache_data. */
if (len > 4 && strcmp (target_name + len - 4, "@plt") == 0)
return 0;
- htab = (htab_t) objfile_data (objfile, elf_objfile_gnu_ifunc_cache_data);
+ htab = elf_objfile_gnu_ifunc_cache_data.get (objfile);
if (htab == NULL)
{
- htab = htab_create_alloc_ex (1, elf_gnu_ifunc_cache_hash,
- elf_gnu_ifunc_cache_eq,
- NULL, &objfile->objfile_obstack,
- hashtab_obstack_allocate,
- dummy_obstack_deallocate);
- set_objfile_data (objfile, elf_objfile_gnu_ifunc_cache_data, htab);
+ htab = htab_create_alloc (1, elf_gnu_ifunc_cache_hash,
+ elf_gnu_ifunc_cache_eq,
+ NULL, xcalloc, xfree);
+ elf_objfile_gnu_ifunc_cache_data.set (objfile, htab);
}
entry_local.addr = addr;
static int
elf_gnu_ifunc_resolve_by_cache (const char *name, CORE_ADDR *addr_p)
{
- struct objfile *objfile;
-
- ALL_PSPACE_OBJFILES (current_program_space, objfile)
+ for (objfile *objfile : current_program_space->objfiles ())
{
htab_t htab;
struct elf_gnu_ifunc_cache *entry_p;
void **slot;
- htab = (htab_t) objfile_data (objfile, elf_objfile_gnu_ifunc_cache_data);
+ htab = elf_objfile_gnu_ifunc_cache_data.get (objfile);
if (htab == NULL)
continue;
elf_gnu_ifunc_resolve_by_got (const char *name, CORE_ADDR *addr_p)
{
char *name_got_plt;
- struct objfile *objfile;
const size_t got_suffix_len = strlen (SYMBOL_GOT_PLT_SUFFIX);
name_got_plt = (char *) alloca (strlen (name) + got_suffix_len + 1);
sprintf (name_got_plt, "%s" SYMBOL_GOT_PLT_SUFFIX, name);
- ALL_PSPACE_OBJFILES (current_program_space, objfile)
+ for (objfile *objfile : current_program_space->objfiles ())
{
bfd *obfd = objfile->obfd;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
continue;
addr = extract_typed_address (buf, ptr_type);
addr = gdbarch_convert_from_func_ptr_addr (gdbarch, addr,
- ¤t_target);
+ current_top_target ());
addr = gdbarch_addr_bits_remove (gdbarch, addr);
if (elf_gnu_ifunc_record_cache (name, addr))
parameter. FUNCTION is the function entry address. ADDRESS may be a
function descriptor. */
- target_auxv_search (¤t_target, AT_HWCAP, &hwcap);
+ target_auxv_search (current_top_target (), AT_HWCAP, &hwcap);
hwcap_val = value_from_longest (builtin_type (gdbarch)
->builtin_unsigned_long, hwcap);
- address_val = call_function_by_hand (function, NULL, 1, &hwcap_val);
+ address_val = call_function_by_hand (function, NULL, hwcap_val);
address = value_as_address (address_val);
- address = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
- ¤t_target);
+ address = gdbarch_convert_from_func_ptr_addr (gdbarch, address, current_top_target ());
address = gdbarch_addr_bits_remove (gdbarch, address);
if (name_at_pc)
struct frame_info *prev_frame = get_prev_frame (get_current_frame ());
struct frame_id prev_frame_id = get_stack_frame_id (prev_frame);
CORE_ADDR prev_pc = get_frame_pc (prev_frame);
- int thread_id = ptid_to_global_thread_id (inferior_ptid);
+ int thread_id = inferior_thread ()->global_num;
gdb_assert (b->type == bp_gnu_ifunc_resolver);
static void
elf_gnu_ifunc_resolver_return_stop (struct breakpoint *b)
{
+ thread_info *thread = inferior_thread ();
struct gdbarch *gdbarch = get_frame_arch (get_current_frame ());
struct type *func_func_type = builtin_type (gdbarch)->builtin_func_func;
struct type *value_type = TYPE_TARGET_TYPE (func_func_type);
- struct regcache *regcache = get_thread_regcache (inferior_ptid);
+ struct regcache *regcache = get_thread_regcache (thread);
struct value *func_func;
struct value *value;
CORE_ADDR resolved_address, resolved_pc;
resolved_address = value_as_address (value);
resolved_pc = gdbarch_convert_from_func_ptr_addr (gdbarch,
resolved_address,
- ¤t_target);
+ current_top_target ());
resolved_pc = gdbarch_addr_bits_remove (gdbarch, resolved_pc);
gdb_assert (current_program_space == b->pspace || b->pspace == NULL);
if (!debugfile.empty ())
{
- gdb_bfd_ref_ptr abfd (symfile_bfd_open (debugfile.c_str ()));
+ gdb_bfd_ref_ptr debug_bfd (symfile_bfd_open (debugfile.c_str ()));
- symbol_file_add_separate (abfd.get (), debugfile.c_str (),
+ symbol_file_add_separate (debug_bfd.get (), debugfile.c_str (),
symfile_flags, objfile);
}
}
elf_new_init (struct objfile *ignore)
{
stabsread_new_init ();
- buildsym_new_init ();
}
/* Perform any local cleanups required when we are done with a particular
static void
elf_symfile_finish (struct objfile *objfile)
{
- dwarf2_free_objfile (objfile);
}
/* ELF specific initialization routine for reading symbols. */
/* Implementation of `sym_get_probes', as documented in symfile.h. */
-static const std::vector<probe *> &
+static const elfread_data &
elf_get_probes (struct objfile *objfile)
{
- std::vector<probe *> *probes_per_bfd;
-
- /* Have we parsed this objfile's probes already? */
- probes_per_bfd = (std::vector<probe *> *) bfd_data (objfile->obfd, probe_key);
+ elfread_data *probes_per_bfd = probe_key.get (objfile->obfd);
if (probes_per_bfd == NULL)
{
- probes_per_bfd = new std::vector<probe *>;
+ probes_per_bfd = probe_key.emplace (objfile->obfd);
/* Here we try to gather information about all types of probes from the
objfile. */
for (const static_probe_ops *ops : all_static_probe_ops)
ops->get_probes (probes_per_bfd, objfile);
-
- set_bfd_data (objfile->obfd, probe_key, probes_per_bfd);
}
return *probes_per_bfd;
}
-/* Helper function used to free the space allocated for storing SystemTap
- probe information. */
-
-static void
-probe_key_free (bfd *abfd, void *d)
-{
- std::vector<probe *> *probes = (std::vector<probe *> *) d;
-
- for (probe *p : *probes)
- delete p;
-
- delete probes;
-}
-
\f
/* Implementation `sym_probe_fns', as documented in symfile.h. */
void
_initialize_elfread (void)
{
- probe_key = register_bfd_data_with_cleanup (NULL, probe_key_free);
add_symtab_fns (bfd_target_elf_flavour, &elf_sym_fns);
- elf_objfile_gnu_ifunc_cache_data = register_objfile_data ();
gnu_ifunc_fns_p = &elf_gnu_ifunc_fns;
}
projects / deliverable / binutils-gdb.git / blobdiff