/* Handle JIT code generation in the inferior for GDB, the GNU Debugger.
- Copyright (C) 2009-2019 Free Software Foundation, Inc.
+ Copyright (C) 2009-2020 Free Software Foundation, Inc.
This file is part of GDB.
static std::string jit_reader_dir;
-static const struct objfile_data *jit_objfile_data;
-
static const char *const jit_break_name = "__jit_debug_register_code";
static const char *const jit_descriptor_name = "__jit_debug_descriptor";
/* Open a BFD from the target's memory. */
static gdb_bfd_ref_ptr
-bfd_open_from_target_memory (CORE_ADDR addr, ULONGEST size, char *target)
+bfd_open_from_target_memory (CORE_ADDR addr, ULONGEST size,
+ const char *target)
{
struct target_buffer *buffer = XNEW (struct target_buffer);
loaded_jit_reader = NULL;
}
-/* Per-program space structure recording which objfile has the JIT
- symbols. */
+/* Destructor for jiter_objfile_data. */
-struct jit_program_space_data
+jiter_objfile_data::~jiter_objfile_data ()
{
- /* The objfile. This is NULL if no objfile holds the JIT
- symbols. */
-
- struct objfile *objfile = nullptr;
-
- /* If this program space has __jit_debug_register_code, this is the
- cached address from the minimal symbol. This is used to detect
- relocations requiring the breakpoint to be re-created. */
-
- CORE_ADDR cached_code_address = 0;
-
- /* This is the JIT event breakpoint, or NULL if it has not been
- set. */
-
- struct breakpoint *jit_breakpoint = nullptr;
-};
-
-static program_space_key<jit_program_space_data> jit_program_space_key;
-
-/* Per-objfile structure recording the addresses in the program space.
- This object serves two purposes: for ordinary objfiles, it may
- cache some symbols related to the JIT interface; and for
- JIT-created objfiles, it holds some information about the
- jit_code_entry. */
-
-struct jit_objfile_data
-{
- /* Symbol for __jit_debug_register_code. */
- struct minimal_symbol *register_code;
-
- /* Symbol for __jit_debug_descriptor. */
- struct minimal_symbol *descriptor;
-
- /* Address of struct jit_code_entry in this objfile. This is only
- non-zero for objfiles that represent code created by the JIT. */
- CORE_ADDR addr;
-};
+ if (this->jit_breakpoint != nullptr)
+ delete_breakpoint (this->jit_breakpoint);
+}
-/* Fetch the jit_objfile_data associated with OBJF. If no data exists
+/* Fetch the jiter_objfile_data associated with OBJF. If no data exists
yet, make a new structure and attach it. */
-static struct jit_objfile_data *
-get_jit_objfile_data (struct objfile *objf)
+static jiter_objfile_data *
+get_jiter_objfile_data (objfile *objf)
{
- struct jit_objfile_data *objf_data;
-
- objf_data = (struct jit_objfile_data *) objfile_data (objf, jit_objfile_data);
- if (objf_data == NULL)
- {
- objf_data = XCNEW (struct jit_objfile_data);
- set_objfile_data (objf, jit_objfile_data, objf_data);
- }
+ if (objf->jiter_data == nullptr)
+ objf->jiter_data.reset (new jiter_objfile_data ());
- return objf_data;
+ return objf->jiter_data.get ();
}
/* Remember OBJFILE has been created for struct jit_code_entry located
static void
add_objfile_entry (struct objfile *objfile, CORE_ADDR entry)
{
- struct jit_objfile_data *objf_data;
+ gdb_assert (objfile->jited_data == nullptr);
- objf_data = get_jit_objfile_data (objfile);
- objf_data->addr = entry;
-}
-
-/* Return jit_program_space_data for current program space. Allocate
- if not already present. */
-
-static struct jit_program_space_data *
-get_jit_program_space_data ()
-{
- struct jit_program_space_data *ps_data;
-
- ps_data = jit_program_space_key.get (current_program_space);
- if (ps_data == NULL)
- ps_data = jit_program_space_key.emplace (current_program_space);
- return ps_data;
+ objfile->jited_data.reset (new jited_objfile_data (entry));
}
/* Helper function for reading the global JIT descriptor from remote
- memory. Returns 1 if all went well, 0 otherwise. */
+ memory. Returns true if all went well, false otherwise. */
-static int
-jit_read_descriptor (struct gdbarch *gdbarch,
- struct jit_descriptor *descriptor,
- struct jit_program_space_data *ps_data)
+static bool
+jit_read_descriptor (gdbarch *gdbarch,
+ jit_descriptor *descriptor,
+ objfile *jiter)
{
int err;
struct type *ptr_type;
int desc_size;
gdb_byte *desc_buf;
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- struct jit_objfile_data *objf_data;
- if (ps_data->objfile == NULL)
- return 0;
- objf_data = get_jit_objfile_data (ps_data->objfile);
- if (objf_data->descriptor == NULL)
- return 0;
+ gdb_assert (jiter != nullptr);
+ jiter_objfile_data *objf_data = jiter->jiter_data.get ();
+ gdb_assert (objf_data != nullptr);
+
+ CORE_ADDR addr = MSYMBOL_VALUE_ADDRESS (jiter, objf_data->descriptor);
if (jit_debug)
fprintf_unfiltered (gdb_stdlog,
"jit_read_descriptor, descriptor_addr = %s\n",
- paddress (gdbarch, MSYMBOL_VALUE_ADDRESS (ps_data->objfile,
- objf_data->descriptor)));
+ paddress (gdbarch, addr));
/* Figure out how big the descriptor is on the remote and how to read it. */
ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
desc_buf = (gdb_byte *) alloca (desc_size);
/* Read the descriptor. */
- err = target_read_memory (MSYMBOL_VALUE_ADDRESS (ps_data->objfile,
- objf_data->descriptor),
- desc_buf, desc_size);
+ err = target_read_memory (addr, desc_buf, desc_size);
if (err)
{
printf_unfiltered (_("Unable to read JIT descriptor from "
"remote memory\n"));
- return 0;
+ return false;
}
/* Fix the endianness to match the host. */
descriptor->first_entry =
extract_typed_address (&desc_buf[8 + ptr_size], ptr_type);
- return 1;
+ return true;
}
/* Helper function for reading a JITed code entry from remote memory. */
struct gdb_block
{
- /* gdb_blocks are linked into a tree structure. Next points to the
- next node at the same depth as this block and parent to the
- parent gdb_block. */
- struct gdb_block *next, *parent;
+ gdb_block (gdb_block *parent, CORE_ADDR begin, CORE_ADDR end,
+ const char *name)
+ : parent (parent),
+ begin (begin),
+ end (end),
+ name (name != nullptr ? xstrdup (name) : nullptr)
+ {}
+
+ /* The parent of this block. */
+ struct gdb_block *parent;
/* Points to the "real" block that is being built out of this
instance. This block will be added to a blockvector, which will
then be added to a symtab. */
- struct block *real_block;
+ struct block *real_block = nullptr;
/* The first and last code address corresponding to this block. */
CORE_ADDR begin, end;
/* The name of this block (if any). If this is non-NULL, the
FUNCTION symbol symbol is set to this value. */
- const char *name;
+ gdb::unique_xmalloc_ptr<char> name;
};
/* Proxy object for building a symtab. */
: file_name (file_name != nullptr ? file_name : "")
{}
- ~gdb_symtab ()
- {
- gdb_block *gdb_block_iter, *gdb_block_iter_tmp;
-
- for ((gdb_block_iter = this->blocks,
- gdb_block_iter_tmp = gdb_block_iter->next);
- gdb_block_iter;
- gdb_block_iter = gdb_block_iter_tmp)
- {
- gdb_block_iter_tmp = gdb_block_iter->next;
- xfree ((void *) gdb_block_iter->name);
- xfree (gdb_block_iter);
- }
- }
-
/* The list of blocks in this symtab. These will eventually be
- converted to real blocks. */
- struct gdb_block *blocks = nullptr;
+ converted to real blocks.
+
+ This is specifically a linked list, instead of, for example, a vector,
+ because the pointers are returned to the user's debug info reader. So
+ it's important that the objects don't change location during their
+ lifetime (which would happen with a vector of objects getting resized). */
+ std::forward_list<gdb_block> blocks;
/* The number of blocks inserted. */
int nblocks = 0;
return &object->symtabs.front ();
}
-/* Returns true if the block corresponding to old should be placed
- before the block corresponding to new in the final blockvector. */
-
-static int
-compare_block (const struct gdb_block *const old,
- const struct gdb_block *const newobj)
-{
- if (old == NULL)
- return 1;
- if (old->begin < newobj->begin)
- return 1;
- else if (old->begin == newobj->begin)
- {
- if (old->end > newobj->end)
- return 1;
- else
- return 0;
- }
- else
- return 0;
-}
-
/* Called by readers to open a new gdb_block. This function also
inserts the new gdb_block in the correct place in the corresponding
gdb_symtab. */
struct gdb_symtab *symtab, struct gdb_block *parent,
GDB_CORE_ADDR begin, GDB_CORE_ADDR end, const char *name)
{
- struct gdb_block *block = XCNEW (struct gdb_block);
-
- block->next = symtab->blocks;
- block->begin = (CORE_ADDR) begin;
- block->end = (CORE_ADDR) end;
- block->name = name ? xstrdup (name) : NULL;
- block->parent = parent;
-
- /* Ensure that the blocks are inserted in the correct (reverse of
- the order expected by blockvector). */
- if (compare_block (symtab->blocks, block))
- {
- symtab->blocks = block;
- }
- else
- {
- struct gdb_block *i = symtab->blocks;
-
- for (;; i = i->next)
- {
- /* Guaranteed to terminate, since compare_block (NULL, _)
- returns 1. */
- if (compare_block (i->next, block))
- {
- block->next = i->next;
- i->next = block;
- break;
- }
- }
- }
+ /* Place the block at the beginning of the list, it will be sorted when the
+ symtab is finalized. */
+ symtab->blocks.emplace_front (parent, begin, end, name);
symtab->nblocks++;
- return block;
+ return &symtab->blocks.front ();
}
/* Readers call this to add a line mapping (from PC to line number) to
{
stab->linetable->item[i].pc = (CORE_ADDR) map[i].pc;
stab->linetable->item[i].line = map[i].line;
+ stab->linetable->item[i].is_stmt = 1;
}
}
finalize_symtab (struct gdb_symtab *stab, struct objfile *objfile)
{
struct compunit_symtab *cust;
- struct gdb_block *gdb_block_iter;
- struct block *block_iter;
- int actual_nblocks, i;
size_t blockvector_size;
CORE_ADDR begin, end;
struct blockvector *bv;
- actual_nblocks = FIRST_LOCAL_BLOCK + stab->nblocks;
+ int actual_nblocks = FIRST_LOCAL_BLOCK + stab->nblocks;
+
+ /* Sort the blocks in the order they should appear in the blockvector. */
+ stab->blocks.sort([] (const gdb_block &a, const gdb_block &b)
+ {
+ if (a.begin != b.begin)
+ return a.begin < b.begin;
+
+ return a.end > b.end;
+ });
cust = allocate_compunit_symtab (objfile, stab->file_name.c_str ());
allocate_symtab (cust, stab->file_name.c_str ());
blockvector_size);
COMPUNIT_BLOCKVECTOR (cust) = bv;
- /* (begin, end) will contain the PC range this entire blockvector
- spans. */
+ /* At the end of this function, (begin, end) will contain the PC range this
+ entire blockvector spans. */
BLOCKVECTOR_MAP (bv) = NULL;
- begin = stab->blocks->begin;
- end = stab->blocks->end;
+ begin = stab->blocks.front ().begin;
+ end = stab->blocks.front ().end;
BLOCKVECTOR_NBLOCKS (bv) = actual_nblocks;
/* First run over all the gdb_block objects, creating a real block
object for each. Simultaneously, keep setting the real_block
fields. */
- for (i = (actual_nblocks - 1), gdb_block_iter = stab->blocks;
- i >= FIRST_LOCAL_BLOCK;
- i--, gdb_block_iter = gdb_block_iter->next)
+ int block_idx = FIRST_LOCAL_BLOCK;
+ for (gdb_block &gdb_block_iter : stab->blocks)
{
struct block *new_block = allocate_block (&objfile->objfile_obstack);
- struct symbol *block_name = allocate_symbol (objfile);
- struct type *block_type = arch_type (get_objfile_arch (objfile),
+ struct symbol *block_name = new (&objfile->objfile_obstack) symbol;
+ struct type *block_type = arch_type (objfile->arch (),
TYPE_CODE_VOID,
TARGET_CHAR_BIT,
"void");
BLOCK_MULTIDICT (new_block)
= mdict_create_linear (&objfile->objfile_obstack, NULL);
/* The address range. */
- BLOCK_START (new_block) = (CORE_ADDR) gdb_block_iter->begin;
- BLOCK_END (new_block) = (CORE_ADDR) gdb_block_iter->end;
+ BLOCK_START (new_block) = (CORE_ADDR) gdb_block_iter.begin;
+ BLOCK_END (new_block) = (CORE_ADDR) gdb_block_iter.end;
/* The name. */
SYMBOL_DOMAIN (block_name) = VAR_DOMAIN;
SYMBOL_TYPE (block_name) = lookup_function_type (block_type);
SYMBOL_BLOCK_VALUE (block_name) = new_block;
- block_name->name = obstack_strdup (&objfile->objfile_obstack,
- gdb_block_iter->name);
+ block_name->m_name = obstack_strdup (&objfile->objfile_obstack,
+ gdb_block_iter.name.get ());
BLOCK_FUNCTION (new_block) = block_name;
- BLOCKVECTOR_BLOCK (bv, i) = new_block;
+ BLOCKVECTOR_BLOCK (bv, block_idx) = new_block;
if (begin > BLOCK_START (new_block))
begin = BLOCK_START (new_block);
if (end < BLOCK_END (new_block))
end = BLOCK_END (new_block);
- gdb_block_iter->real_block = new_block;
+ gdb_block_iter.real_block = new_block;
+
+ block_idx++;
}
/* Now add the special blocks. */
- block_iter = NULL;
- for (i = 0; i < FIRST_LOCAL_BLOCK; i++)
+ struct block *block_iter = NULL;
+ for (enum block_enum i : { GLOBAL_BLOCK, STATIC_BLOCK })
{
struct block *new_block;
/* Fill up the superblock fields for the real blocks, using the
real_block fields populated earlier. */
- for (gdb_block_iter = stab->blocks;
- gdb_block_iter;
- gdb_block_iter = gdb_block_iter->next)
+ for (gdb_block &gdb_block_iter : stab->blocks)
{
- if (gdb_block_iter->parent != NULL)
+ if (gdb_block_iter.parent != NULL)
{
/* If the plugin specifically mentioned a parent block, we
use that. */
- BLOCK_SUPERBLOCK (gdb_block_iter->real_block) =
- gdb_block_iter->parent->real_block;
+ BLOCK_SUPERBLOCK (gdb_block_iter.real_block) =
+ gdb_block_iter.parent->real_block;
}
else
{
/* And if not, we set a default parent block. */
- BLOCK_SUPERBLOCK (gdb_block_iter->real_block) =
+ BLOCK_SUPERBLOCK (gdb_block_iter.real_block) =
BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
}
}
{
for (objfile *objf : current_program_space->objfiles ())
{
- struct jit_objfile_data *objf_data;
-
- objf_data
- = (struct jit_objfile_data *) objfile_data (objf, jit_objfile_data);
- if (objf_data != NULL && objf_data->addr == entry_addr)
+ if (objf->jited_data != nullptr && objf->jited_data->addr == entry_addr)
return objf;
}
+
return NULL;
}
static void
jit_breakpoint_deleted (struct breakpoint *b)
{
- struct bp_location *iter;
-
if (b->type != bp_jit_event)
return;
- for (iter = b->loc; iter != NULL; iter = iter->next)
+ for (bp_location *iter = b->loc; iter != nullptr; iter = iter->next)
{
- struct jit_program_space_data *ps_data;
-
- ps_data = jit_program_space_key.get (iter->pspace);
- if (ps_data != NULL && ps_data->jit_breakpoint == iter->owner)
+ for (objfile *objf : iter->pspace->objfiles ())
{
- ps_data->cached_code_address = 0;
- ps_data->jit_breakpoint = NULL;
+ jiter_objfile_data *jiter_data = objf->jiter_data.get ();
+
+ if (jiter_data != nullptr
+ && jiter_data->jit_breakpoint == iter->owner)
+ {
+ jiter_data->cached_code_address = 0;
+ jiter_data->jit_breakpoint = nullptr;
+ }
}
}
}
-/* (Re-)Initialize the jit breakpoint if necessary.
- Return 0 if the jit breakpoint has been successfully initialized. */
+/* (Re-)Initialize the jit breakpoints for JIT-producing objfiles in
+ PSPACE. */
-static int
-jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
- struct jit_program_space_data *ps_data)
+static void
+jit_breakpoint_re_set_internal (struct gdbarch *gdbarch, program_space *pspace)
{
- struct bound_minimal_symbol reg_symbol;
- struct bound_minimal_symbol desc_symbol;
- struct jit_objfile_data *objf_data;
- CORE_ADDR addr;
-
- if (ps_data->objfile == NULL)
+ for (objfile *the_objfile : pspace->objfiles ())
{
+ if (the_objfile->skip_jit_symbol_lookup)
+ continue;
+
/* Lookup the registration symbol. If it is missing, then we
assume we are not attached to a JIT. */
- reg_symbol = lookup_bound_minimal_symbol (jit_break_name);
+ bound_minimal_symbol reg_symbol
+ = lookup_minimal_symbol (jit_break_name, nullptr, the_objfile);
if (reg_symbol.minsym == NULL
|| BMSYMBOL_VALUE_ADDRESS (reg_symbol) == 0)
- return 1;
+ {
+ /* No need to repeat the lookup the next time. */
+ the_objfile->skip_jit_symbol_lookup = true;
+ continue;
+ }
- desc_symbol = lookup_minimal_symbol (jit_descriptor_name, NULL,
- reg_symbol.objfile);
+ bound_minimal_symbol desc_symbol
+ = lookup_minimal_symbol (jit_descriptor_name, NULL, the_objfile);
if (desc_symbol.minsym == NULL
|| BMSYMBOL_VALUE_ADDRESS (desc_symbol) == 0)
- return 1;
+ {
+ /* No need to repeat the lookup the next time. */
+ the_objfile->skip_jit_symbol_lookup = true;
+ continue;
+ }
- objf_data = get_jit_objfile_data (reg_symbol.objfile);
+ jiter_objfile_data *objf_data
+ = get_jiter_objfile_data (reg_symbol.objfile);
objf_data->register_code = reg_symbol.minsym;
objf_data->descriptor = desc_symbol.minsym;
- ps_data->objfile = reg_symbol.objfile;
- }
- else
- objf_data = get_jit_objfile_data (ps_data->objfile);
-
- addr = MSYMBOL_VALUE_ADDRESS (ps_data->objfile, objf_data->register_code);
+ CORE_ADDR addr = MSYMBOL_VALUE_ADDRESS (the_objfile,
+ objf_data->register_code);
- if (jit_debug)
- fprintf_unfiltered (gdb_stdlog,
- "jit_breakpoint_re_set_internal, "
- "breakpoint_addr = %s\n",
- paddress (gdbarch, addr));
-
- if (ps_data->cached_code_address == addr)
- return 0;
+ if (jit_debug)
+ fprintf_unfiltered (gdb_stdlog,
+ "jit_breakpoint_re_set_internal, "
+ "breakpoint_addr = %s\n",
+ paddress (gdbarch, addr));
- /* Delete the old breakpoint. */
- if (ps_data->jit_breakpoint != NULL)
- delete_breakpoint (ps_data->jit_breakpoint);
+ /* Check if we need to re-create the breakpoint. */
+ if (objf_data->cached_code_address == addr)
+ continue;
- /* Put a breakpoint in the registration symbol. */
- ps_data->cached_code_address = addr;
- ps_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);
+ /* Delete the old breakpoint. */
+ if (objf_data->jit_breakpoint != nullptr)
+ delete_breakpoint (objf_data->jit_breakpoint);
- return 0;
+ /* Put a breakpoint in the registration symbol. */
+ objf_data->cached_code_address = addr;
+ objf_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);
+ }
}
/* The private data passed around in the frame unwind callback
{
struct jit_descriptor descriptor;
struct jit_code_entry cur_entry;
- struct jit_program_space_data *ps_data;
CORE_ADDR cur_entry_addr;
if (jit_debug)
jit_prepend_unwinder (gdbarch);
- ps_data = get_jit_program_space_data ();
- if (jit_breakpoint_re_set_internal (gdbarch, ps_data) != 0)
- return;
-
- /* Read the descriptor so we can check the version number and load
- any already JITed functions. */
- if (!jit_read_descriptor (gdbarch, &descriptor, ps_data))
- return;
-
- /* Check that the version number agrees with that we support. */
- if (descriptor.version != 1)
- {
- printf_unfiltered (_("Unsupported JIT protocol version %ld "
- "in descriptor (expected 1)\n"),
- (long) descriptor.version);
- return;
- }
+ jit_breakpoint_re_set_internal (gdbarch, current_program_space);
- /* If we've attached to a running program, we need to check the descriptor
- to register any functions that were already generated. */
- for (cur_entry_addr = descriptor.first_entry;
- cur_entry_addr != 0;
- cur_entry_addr = cur_entry.next_entry)
+ for (objfile *jiter : current_program_space->objfiles ())
{
- jit_read_code_entry (gdbarch, cur_entry_addr, &cur_entry);
+ if (jiter->jiter_data == nullptr)
+ continue;
- /* This hook may be called many times during setup, so make sure we don't
- add the same symbol file twice. */
- if (jit_find_objf_with_entry_addr (cur_entry_addr) != NULL)
+ /* Read the descriptor so we can check the version number and load
+ any already JITed functions. */
+ if (!jit_read_descriptor (gdbarch, &descriptor, jiter))
continue;
- jit_register_code (gdbarch, cur_entry_addr, &cur_entry);
+ /* Check that the version number agrees with that we support. */
+ if (descriptor.version != 1)
+ {
+ printf_unfiltered (_("Unsupported JIT protocol version %ld "
+ "in descriptor (expected 1)\n"),
+ (long) descriptor.version);
+ continue;
+ }
+
+ /* If we've attached to a running program, we need to check the
+ descriptor to register any functions that were already
+ generated. */
+ for (cur_entry_addr = descriptor.first_entry;
+ cur_entry_addr != 0;
+ cur_entry_addr = cur_entry.next_entry)
+ {
+ jit_read_code_entry (gdbarch, cur_entry_addr, &cur_entry);
+
+ /* This hook may be called many times during setup, so make sure
+ we don't add the same symbol file twice. */
+ if (jit_find_objf_with_entry_addr (cur_entry_addr) != NULL)
+ continue;
+
+ jit_register_code (gdbarch, cur_entry_addr, &cur_entry);
+ }
}
}
void
jit_breakpoint_re_set (void)
{
- jit_breakpoint_re_set_internal (target_gdbarch (),
- get_jit_program_space_data ());
+ jit_breakpoint_re_set_internal (target_gdbarch (), current_program_space);
}
/* This function cleans up any code entries left over when the
{
for (objfile *objf : current_program_space->objfiles_safe ())
{
- struct jit_objfile_data *objf_data
- = (struct jit_objfile_data *) objfile_data (objf, jit_objfile_data);
-
- if (objf_data != NULL && objf_data->addr != 0)
+ if (objf->jited_data != nullptr && objf->jited_data->addr != 0)
objf->unlink ();
}
}
void
-jit_event_handler (struct gdbarch *gdbarch)
+jit_event_handler (gdbarch *gdbarch, objfile *jiter)
{
struct jit_descriptor descriptor;
- struct jit_code_entry code_entry;
- CORE_ADDR entry_addr;
- struct objfile *objf;
+
+ /* If we get a JIT breakpoint event for this objfile, it is necessarily a
+ JITer. */
+ gdb_assert (jiter->jiter_data != nullptr);
/* Read the descriptor from remote memory. */
- if (!jit_read_descriptor (gdbarch, &descriptor,
- get_jit_program_space_data ()))
+ if (!jit_read_descriptor (gdbarch, &descriptor, jiter))
return;
- entry_addr = descriptor.relevant_entry;
+ CORE_ADDR entry_addr = descriptor.relevant_entry;
/* Do the corresponding action. */
switch (descriptor.action_flag)
{
case JIT_NOACTION:
break;
+
case JIT_REGISTER:
- jit_read_code_entry (gdbarch, entry_addr, &code_entry);
- jit_register_code (gdbarch, entry_addr, &code_entry);
- break;
+ {
+ jit_code_entry code_entry;
+ jit_read_code_entry (gdbarch, entry_addr, &code_entry);
+ jit_register_code (gdbarch, entry_addr, &code_entry);
+ break;
+ }
+
case JIT_UNREGISTER:
- objf = jit_find_objf_with_entry_addr (entry_addr);
- if (objf == NULL)
- printf_unfiltered (_("Unable to find JITed code "
- "entry at address: %s\n"),
- paddress (gdbarch, entry_addr));
- else
- objf->unlink ();
+ {
+ objfile *jited = jit_find_objf_with_entry_addr (entry_addr);
+ if (jited == nullptr)
+ printf_unfiltered (_("Unable to find JITed code "
+ "entry at address: %s\n"),
+ paddress (gdbarch, entry_addr));
+ else
+ jited->unlink ();
+
+ break;
+ }
- break;
default:
error (_("Unknown action_flag value in JIT descriptor!"));
break;
}
}
-/* Called to free the data allocated to the jit_program_space_data slot. */
-
-static void
-free_objfile_data (struct objfile *objfile, void *data)
-{
- struct jit_objfile_data *objf_data = (struct jit_objfile_data *) data;
-
- if (objf_data->register_code != NULL)
- {
- struct jit_program_space_data *ps_data;
-
- ps_data = jit_program_space_key.get (objfile->pspace);
- if (ps_data != NULL && ps_data->objfile == objfile)
- {
- ps_data->objfile = NULL;
- if (ps_data->jit_breakpoint != NULL)
- delete_breakpoint (ps_data->jit_breakpoint);
- ps_data->cached_code_address = 0;
- }
- }
-
- xfree (data);
-}
-
/* Initialize the jit_gdbarch_data slot with an instance of struct
jit_gdbarch_data_type */
return data;
}
+void _initialize_jit ();
void
-_initialize_jit (void)
+_initialize_jit ()
{
jit_reader_dir = relocate_gdb_directory (JIT_READER_DIR,
JIT_READER_DIR_RELOCATABLE);
gdb::observers::inferior_exit.attach (jit_inferior_exit_hook);
gdb::observers::breakpoint_deleted.attach (jit_breakpoint_deleted);
- jit_objfile_data =
- register_objfile_data_with_cleanup (NULL, free_objfile_data);
jit_gdbarch_data = gdbarch_data_register_pre_init (jit_gdbarch_data_init);
if (is_dl_available ())
{
projects / binutils-gdb.git / blobdiff