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Diffstat (limited to 'gdb/stap-probe.c')
-rw-r--r--gdb/stap-probe.c71
1 files changed, 36 insertions, 35 deletions
diff --git a/gdb/stap-probe.c b/gdb/stap-probe.c
index 3064614..6bb7323 100644
--- a/gdb/stap-probe.c
+++ b/gdb/stap-probe.c
@@ -99,7 +99,7 @@ struct stap_probe
struct probe p;
/* If the probe has a semaphore associated, then this is the value of
- it. */
+ it, relative to SECT_OFF_DATA. */
CORE_ADDR sem_addr;
/* One if the arguments have been parsed. */
@@ -1151,6 +1151,15 @@ stap_parse_probe_arguments (struct stap_probe *probe, struct gdbarch *gdbarch)
}
}
+/* Implementation of the get_probe_address method. */
+
+static CORE_ADDR
+stap_get_probe_address (struct probe *probe, struct objfile *objfile)
+{
+ return probe->address + ANOFFSET (objfile->section_offsets,
+ SECT_OFF_DATA (objfile));
+}
+
/* Given PROBE, returns the number of arguments present in that probe's
argument string. */
@@ -1241,7 +1250,7 @@ static int
stap_can_evaluate_probe_arguments (struct probe *probe_generic)
{
struct stap_probe *stap_probe = (struct stap_probe *) probe_generic;
- struct gdbarch *gdbarch = get_objfile_arch (stap_probe->p.objfile);
+ struct gdbarch *gdbarch = stap_probe->p.arch;
/* For SystemTap probes, we have to guarantee that the method
stap_is_single_operand is defined on gdbarch. If it is not, then it
@@ -1323,7 +1332,7 @@ compute_probe_arg (struct gdbarch *arch, struct internalvar *ivar,
struct frame_info *frame = get_selected_frame (_("No frame selected"));
CORE_ADDR pc = get_frame_pc (frame);
int sel = (int) (uintptr_t) data;
- struct probe *pc_probe;
+ struct bound_probe pc_probe;
const struct sym_probe_fns *pc_probe_fns;
unsigned n_args;
@@ -1331,10 +1340,10 @@ compute_probe_arg (struct gdbarch *arch, struct internalvar *ivar,
gdb_assert (sel >= -1);
pc_probe = find_probe_by_pc (pc);
- if (pc_probe == NULL)
+ if (pc_probe.probe == NULL)
error (_("No SystemTap probe at PC %s"), core_addr_to_string (pc));
- n_args = get_probe_argument_count (pc_probe, frame);
+ n_args = get_probe_argument_count (pc_probe.probe, frame);
if (sel == -1)
return value_from_longest (builtin_type (arch)->builtin_int, n_args);
@@ -1342,7 +1351,7 @@ compute_probe_arg (struct gdbarch *arch, struct internalvar *ivar,
error (_("Invalid probe argument %d -- probe has %u arguments available"),
sel, n_args);
- return evaluate_probe_argument (pc_probe, sel, frame);
+ return evaluate_probe_argument (pc_probe.probe, sel, frame);
}
/* This is called to compile one of the $_probe_arg* convenience
@@ -1354,7 +1363,7 @@ compile_probe_arg (struct internalvar *ivar, struct agent_expr *expr,
{
CORE_ADDR pc = expr->scope;
int sel = (int) (uintptr_t) data;
- struct probe *pc_probe;
+ struct bound_probe pc_probe;
const struct sym_probe_fns *pc_probe_fns;
int n_args;
struct frame_info *frame = get_selected_frame (NULL);
@@ -1363,10 +1372,10 @@ compile_probe_arg (struct internalvar *ivar, struct agent_expr *expr,
gdb_assert (sel >= -1);
pc_probe = find_probe_by_pc (pc);
- if (pc_probe == NULL)
+ if (pc_probe.probe == NULL)
error (_("No SystemTap probe at PC %s"), core_addr_to_string (pc));
- n_args = get_probe_argument_count (pc_probe, frame);
+ n_args = get_probe_argument_count (pc_probe.probe, frame);
if (sel == -1)
{
@@ -1381,7 +1390,7 @@ compile_probe_arg (struct internalvar *ivar, struct agent_expr *expr,
error (_("Invalid probe argument %d -- probe has %d arguments available"),
sel, n_args);
- pc_probe->pops->compile_to_ax (pc_probe, expr, value, sel);
+ pc_probe.probe->pops->compile_to_ax (pc_probe.probe, expr, value, sel);
}
@@ -1433,25 +1442,33 @@ stap_modify_semaphore (CORE_ADDR address, int set, struct gdbarch *gdbarch)
the probes, but that is too rare to care. */
static void
-stap_set_semaphore (struct probe *probe_generic, struct gdbarch *gdbarch)
+stap_set_semaphore (struct probe *probe_generic, struct objfile *objfile,
+ struct gdbarch *gdbarch)
{
struct stap_probe *probe = (struct stap_probe *) probe_generic;
+ CORE_ADDR addr;
gdb_assert (probe_generic->pops == &stap_probe_ops);
- stap_modify_semaphore (probe->sem_addr, 1, gdbarch);
+ addr = (probe->sem_addr
+ + ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile)));
+ stap_modify_semaphore (addr, 1, gdbarch);
}
/* Clear a SystemTap semaphore. SEM is the semaphore's address. */
static void
-stap_clear_semaphore (struct probe *probe_generic, struct gdbarch *gdbarch)
+stap_clear_semaphore (struct probe *probe_generic, struct objfile *objfile,
+ struct gdbarch *gdbarch)
{
struct stap_probe *probe = (struct stap_probe *) probe_generic;
+ CORE_ADDR addr;
gdb_assert (probe_generic->pops == &stap_probe_ops);
- stap_modify_semaphore (probe->sem_addr, 0, gdbarch);
+ addr = (probe->sem_addr
+ + ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile)));
+ stap_modify_semaphore (addr, 0, gdbarch);
}
/* Implementation of `$_probe_arg*' set of variables. */
@@ -1491,7 +1508,7 @@ handle_stap_probe (struct objfile *objfile, struct sdt_note *el,
ret = obstack_alloc (&objfile->objfile_obstack, sizeof (*ret));
ret->p.pops = &stap_probe_ops;
- ret->p.objfile = objfile;
+ ret->p.arch = gdbarch;
/* Provider and the name of the probe. */
ret->p.provider = (char *) &el->data[3 * size];
@@ -1520,13 +1537,9 @@ handle_stap_probe (struct objfile *objfile, struct sdt_note *el,
/* Semaphore address. */
ret->sem_addr = extract_typed_address (&el->data[2 * size], ptr_type);
- ret->p.address += (ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile))
- + base - base_ref);
+ ret->p.address += base - base_ref;
if (ret->sem_addr != 0)
- ret->sem_addr += (ANOFFSET (objfile->section_offsets,
- SECT_OFF_DATA (objfile))
- + base - base_ref);
+ ret->sem_addr += base - base_ref;
/* Arguments. We can only extract the argument format if there is a valid
name for this probe. */
@@ -1647,18 +1660,6 @@ stap_get_probes (VEC (probe_p) **probesp, struct objfile *objfile)
}
}
-static void
-stap_relocate (struct probe *probe_generic, CORE_ADDR delta)
-{
- struct stap_probe *probe = (struct stap_probe *) probe_generic;
-
- gdb_assert (probe_generic->pops == &stap_probe_ops);
-
- probe->p.address += delta;
- if (probe->sem_addr != 0)
- probe->sem_addr += delta;
-}
-
static int
stap_probe_is_linespec (const char **linespecp)
{
@@ -1688,7 +1689,7 @@ stap_gen_info_probes_table_values (struct probe *probe_generic,
gdb_assert (probe_generic->pops == &stap_probe_ops);
- gdbarch = get_objfile_arch (probe->p.objfile);
+ gdbarch = probe->p.arch;
if (probe->sem_addr != 0)
val = print_core_address (gdbarch, probe->sem_addr);
@@ -1702,7 +1703,7 @@ static const struct probe_ops stap_probe_ops =
{
stap_probe_is_linespec,
stap_get_probes,
- stap_relocate,
+ stap_get_probe_address,
stap_get_probe_argument_count,
stap_can_evaluate_probe_arguments,
stap_evaluate_probe_argument,