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authorTom Tromey <tromey@redhat.com>2013-01-31 19:55:15 +0000
committerTom Tromey <tromey@redhat.com>2013-01-31 19:55:15 +0000
commit8eacb197657337dd8eb09c716b8d7f3679a0952c (patch)
tree0e765233fe1e80610062b2506abb1156b4219ce7 /gdb/jit.c
parentf25c01353c492b47dc6f230257822ed54d554c95 (diff)
* jit.c (jit_program_space_data): Rename from jit_inferior_data;
change type. (struct jit_program_space_data): Rename from jit_inferior_data. Update comments. (get_jit_program_space_data): Rename from get_jit_inferior_data. Change return type. Attach data to program space. (jit_program_space_data_cleanup): Rename from jit_inferior_data_cleanup; change argument type. (jit_read_descriptor): Change 'inf_data' argument to 'ps_data', change type. (jit_register_code): Update. (jit_update_inferior_cache): Remove. (jit_breakpoint_deleted): Get jit data from the location's program space. (jit_breakpoint_re_set_internal): Rename 'inf_data' argument to 'ps_data', change type. (jit_inferior_init, jit_breakpoint_re_set_internal) (jit_event_handler): Update. (free_objfile_data): Get data from objfile's program space. (_initialize_jit): Update.
Diffstat (limited to 'gdb/jit.c')
-rw-r--r--gdb/jit.c120
1 files changed, 54 insertions, 66 deletions
diff --git a/gdb/jit.c b/gdb/jit.c
index a2a9b9e878..ecf7317a13 100644
--- a/gdb/jit.c
+++ b/gdb/jit.c
@@ -49,7 +49,7 @@ static const char *const jit_break_name = "__jit_debug_register_code";
static const char *const jit_descriptor_name = "__jit_debug_descriptor";
-static const struct inferior_data *jit_inferior_data = NULL;
+static const struct program_space_data *jit_program_space_data = NULL;
static void jit_inferior_init (struct gdbarch *gdbarch);
@@ -234,17 +234,17 @@ jit_reader_unload_command (char *args, int from_tty)
loaded_jit_reader = NULL;
}
-/* Per-inferior structure recording which objfile has the JIT
+/* Per-program space structure recording which objfile has the JIT
symbols. */
-struct jit_inferior_data
+struct jit_program_space_data
{
/* The objfile. This is NULL if no objfile holds the JIT
symbols. */
struct objfile *objfile;
- /* If this inferior has __jit_debug_register_code, this is the
+ /* 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. */
@@ -256,7 +256,7 @@ struct jit_inferior_data
struct breakpoint *jit_breakpoint;
};
-/* Per-objfile structure recording the addresses in the inferior.
+/* 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
@@ -305,28 +305,27 @@ add_objfile_entry (struct objfile *objfile, CORE_ADDR entry)
objf_data->addr = entry;
}
-/* Return jit_inferior_data for current inferior. Allocate if not already
- present. */
+/* Return jit_program_space_data for current program space. Allocate
+ if not already present. */
-static struct jit_inferior_data *
-get_jit_inferior_data (void)
+static struct jit_program_space_data *
+get_jit_program_space_data (void)
{
- struct inferior *inf;
- struct jit_inferior_data *inf_data;
+ struct jit_program_space_data *ps_data;
- inf = current_inferior ();
- inf_data = inferior_data (inf, jit_inferior_data);
- if (inf_data == NULL)
+ ps_data = program_space_data (current_program_space, jit_program_space_data);
+ if (ps_data == NULL)
{
- inf_data = XZALLOC (struct jit_inferior_data);
- set_inferior_data (inf, jit_inferior_data, inf_data);
+ ps_data = XZALLOC (struct jit_program_space_data);
+ set_program_space_data (current_program_space, jit_program_space_data,
+ ps_data);
}
- return inf_data;
+ return ps_data;
}
static void
-jit_inferior_data_cleanup (struct inferior *inf, void *arg)
+jit_program_space_data_cleanup (struct program_space *ps, void *arg)
{
xfree (arg);
}
@@ -337,7 +336,7 @@ jit_inferior_data_cleanup (struct inferior *inf, void *arg)
static int
jit_read_descriptor (struct gdbarch *gdbarch,
struct jit_descriptor *descriptor,
- struct jit_inferior_data *inf_data)
+ struct jit_program_space_data *ps_data)
{
int err;
struct type *ptr_type;
@@ -347,9 +346,9 @@ jit_read_descriptor (struct gdbarch *gdbarch,
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct jit_objfile_data *objf_data;
- if (inf_data->objfile == NULL)
+ if (ps_data->objfile == NULL)
return 0;
- objf_data = get_jit_objfile_data (inf_data->objfile);
+ objf_data = get_jit_objfile_data (ps_data->objfile);
if (objf_data->descriptor == NULL)
return 0;
@@ -984,29 +983,6 @@ jit_find_objf_with_entry_addr (CORE_ADDR entry_addr)
return NULL;
}
-/* A callback for iterate_over_inferiors that updates the inferior's
- JIT breakpoint information, if necessary. */
-
-static int
-jit_update_inferior_cache (struct inferior *inf, void *data)
-{
- struct bp_location *loc = data;
-
- if (inf->pspace == loc->pspace)
- {
- struct jit_inferior_data *inf_data;
-
- inf_data = inferior_data (inf, jit_inferior_data);
- if (inf_data != NULL && inf_data->jit_breakpoint == loc->owner)
- {
- inf_data->cached_code_address = 0;
- inf_data->jit_breakpoint = NULL;
- }
- }
-
- return 0;
-}
-
/* This is called when a breakpoint is deleted. It updates the
inferior's cache, if needed. */
@@ -1019,7 +995,16 @@ jit_breakpoint_deleted (struct breakpoint *b)
return;
for (iter = b->loc; iter != NULL; iter = iter->next)
- iterate_over_inferiors (jit_update_inferior_cache, iter);
+ {
+ struct jit_program_space_data *ps_data;
+
+ ps_data = program_space_data (iter->pspace, jit_program_space_data);
+ if (ps_data != NULL && ps_data->jit_breakpoint == iter->owner)
+ {
+ ps_data->cached_code_address = 0;
+ ps_data->jit_breakpoint = NULL;
+ }
+ }
}
/* (Re-)Initialize the jit breakpoint if necessary.
@@ -1027,14 +1012,14 @@ jit_breakpoint_deleted (struct breakpoint *b)
static int
jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
- struct jit_inferior_data *inf_data)
+ struct jit_program_space_data *ps_data)
{
struct minimal_symbol *reg_symbol, *desc_symbol;
struct objfile *objf;
struct jit_objfile_data *objf_data;
CORE_ADDR addr;
- if (inf_data->objfile == NULL)
+ if (ps_data->objfile == NULL)
{
/* Lookup the registration symbol. If it is missing, then we
assume we are not attached to a JIT. */
@@ -1050,10 +1035,10 @@ jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
objf_data->register_code = reg_symbol;
objf_data->descriptor = desc_symbol;
- inf_data->objfile = objf;
+ ps_data->objfile = objf;
}
else
- objf_data = get_jit_objfile_data (inf_data->objfile);
+ objf_data = get_jit_objfile_data (ps_data->objfile);
addr = SYMBOL_VALUE_ADDRESS (objf_data->register_code);
@@ -1063,16 +1048,16 @@ jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
"breakpoint_addr = %s\n",
paddress (gdbarch, addr));
- if (inf_data->cached_code_address == addr)
+ if (ps_data->cached_code_address == addr)
return 1;
/* Delete the old breakpoint. */
- if (inf_data->jit_breakpoint != NULL)
- delete_breakpoint (inf_data->jit_breakpoint);
+ if (ps_data->jit_breakpoint != NULL)
+ delete_breakpoint (ps_data->jit_breakpoint);
/* Put a breakpoint in the registration symbol. */
- inf_data->cached_code_address = addr;
- inf_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);
+ ps_data->cached_code_address = addr;
+ ps_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);
return 0;
}
@@ -1316,7 +1301,7 @@ jit_inferior_init (struct gdbarch *gdbarch)
{
struct jit_descriptor descriptor;
struct jit_code_entry cur_entry;
- struct jit_inferior_data *inf_data;
+ struct jit_program_space_data *ps_data;
CORE_ADDR cur_entry_addr;
if (jit_debug)
@@ -1324,13 +1309,13 @@ jit_inferior_init (struct gdbarch *gdbarch)
jit_prepend_unwinder (gdbarch);
- inf_data = get_jit_inferior_data ();
- if (jit_breakpoint_re_set_internal (gdbarch, inf_data) != 0)
+ 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, inf_data))
+ if (!jit_read_descriptor (gdbarch, &descriptor, ps_data))
return;
/* Check that the version number agrees with that we support. */
@@ -1374,7 +1359,7 @@ void
jit_breakpoint_re_set (void)
{
jit_breakpoint_re_set_internal (target_gdbarch (),
- get_jit_inferior_data ());
+ get_jit_program_space_data ());
}
/* This function cleans up any code entries left over when the
@@ -1406,7 +1391,8 @@ jit_event_handler (struct gdbarch *gdbarch)
struct objfile *objf;
/* Read the descriptor from remote memory. */
- if (!jit_read_descriptor (gdbarch, &descriptor, get_jit_inferior_data ()))
+ if (!jit_read_descriptor (gdbarch, &descriptor,
+ get_jit_program_space_data ()))
return;
entry_addr = descriptor.relevant_entry;
@@ -1435,7 +1421,7 @@ jit_event_handler (struct gdbarch *gdbarch)
}
}
-/* Called to free the data allocated to the jit_inferior_data slot. */
+/* Called to free the data allocated to the jit_program_space_data slot. */
static void
free_objfile_data (struct objfile *objfile, void *data)
@@ -1444,10 +1430,11 @@ free_objfile_data (struct objfile *objfile, void *data)
if (objf_data->register_code != NULL)
{
- struct jit_inferior_data *inf_data = get_jit_inferior_data ();
+ struct jit_program_space_data *ps_data;
- if (inf_data->objfile == objfile)
- inf_data->objfile = NULL;
+ ps_data = program_space_data (objfile->pspace, jit_program_space_data);
+ if (ps_data != NULL && ps_data->objfile == objfile)
+ ps_data->objfile = NULL;
}
xfree (data);
@@ -1488,8 +1475,9 @@ _initialize_jit (void)
jit_objfile_data =
register_objfile_data_with_cleanup (NULL, free_objfile_data);
- jit_inferior_data =
- register_inferior_data_with_cleanup (NULL, jit_inferior_data_cleanup);
+ jit_program_space_data =
+ register_program_space_data_with_cleanup (NULL,
+ jit_program_space_data_cleanup);
jit_gdbarch_data = gdbarch_data_register_pre_init (jit_gdbarch_data_init);
if (is_dl_available ())
{