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Install the btrace target ops for i386-linux-nat and amd64-linux-nat.

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gdb/
	* amd64-linux-nat.c: Include btrace.h and linux-btrace.h.
	(amd64_linux_enable_btrace): New.
	(amd64_linux_disable_btrace): New.
	(amd64_linux_teardown_btrace): New.
	(_initialize_amd64_linux_nat): Initialize btrace ops.
	* i386-linux.nat.c: Include btrace.h and linux-btrace.h.
	(i386_linux_enable_btrace): New.
	(i386_linux_disable_btrace): New.
	(i386_linux_teardown_btrace): New.
	(_initialize_i386_linux_nat): Initialize btrace ops.
	* config/i386/linux.mh: Add linux-btrace.o.
	* config/i386/linux64.mh: Add linux-btrace.o.
This commit is contained in:
Markus Metzger 2013-03-11 08:25:58 +00:00
parent 7c97f91ebf
commit 3e3aea48e2
5 changed files with 120 additions and 2 deletions
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15
gdb/ChangeLog
View File

@ -1,3 +1,18 @@
2013-03-11 Markus Metzger <markus.t.metzger@intel.com>
* amd64-linux-nat.c: Include btrace.h and linux-btrace.h.
(amd64_linux_enable_btrace): New.
(amd64_linux_disable_btrace): New.
(amd64_linux_teardown_btrace): New.
(_initialize_amd64_linux_nat): Initialize btrace ops.
* i386-linux.nat.c: Include btrace.h and linux-btrace.h.
(i386_linux_enable_btrace): New.
(i386_linux_disable_btrace): New.
(i386_linux_teardown_btrace): New.
(_initialize_i386_linux_nat): Initialize btrace ops.
* config/i386/linux.mh: Add linux-btrace.o.
* config/i386/linux64.mh: Add linux-btrace.o.
2013-03-11 Markus Metzger <markus.t.metzger@intel.com>
* common/linux_btrace.h: New file.

51
gdb/amd64-linux-nat.c
View File

@ -25,6 +25,8 @@
#include "regset.h"
#include "linux-nat.h"
#include "amd64-linux-tdep.h"
#include "linux-btrace.h"
#include "btrace.h"
#include "gdb_assert.h"
#include "gdb_string.h"
@ -1119,6 +1121,48 @@ amd64_linux_read_description (struct target_ops *ops)
}
}
/* Enable branch tracing. */
static struct btrace_target_info *
amd64_linux_enable_btrace (ptid_t ptid)
{
struct btrace_target_info *tinfo;
struct gdbarch *gdbarch;
errno = 0;
tinfo = linux_enable_btrace (ptid);
if (tinfo == NULL)
error (_("Could not enable branch tracing for %s: %s."),
target_pid_to_str (ptid), safe_strerror (errno));
/* Fill in the size of a pointer in bits. */
gdbarch = target_thread_architecture (ptid);
tinfo->ptr_bits = gdbarch_ptr_bit (gdbarch);
return tinfo;
}
/* Disable branch tracing. */
static void
amd64_linux_disable_btrace (struct btrace_target_info *tinfo)
{
int errcode = linux_disable_btrace (tinfo);
if (errcode != 0)
error (_("Could not disable branch tracing: %s."), safe_strerror (errcode));
}
/* Teardown branch tracing. */
static void
amd64_linux_teardown_btrace (struct btrace_target_info *tinfo)
{
/* Ignore errors. */
linux_disable_btrace (tinfo);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64_linux_nat (void);
@ -1157,6 +1201,13 @@ _initialize_amd64_linux_nat (void)
t->to_read_description = amd64_linux_read_description;
/* Add btrace methods. */
t->to_supports_btrace = linux_supports_btrace;
t->to_enable_btrace = amd64_linux_enable_btrace;
t->to_disable_btrace = amd64_linux_disable_btrace;
t->to_teardown_btrace = amd64_linux_teardown_btrace;
t->to_read_btrace = linux_read_btrace;
/* Register the target. */
linux_nat_add_target (t);
linux_nat_set_new_thread (t, amd64_linux_new_thread);

3
gdb/config/i386/linux.mh
View File

@ -4,7 +4,8 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
i386-nat.o i386-linux-nat.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
linux-btrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/i386/linux64.mh
View File

@ -3,7 +3,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
i386-nat.o amd64-nat.o amd64-linux-nat.o \
linux-nat.o linux-osdata.o \
proc-service.o linux-thread-db.o linux-fork.o \
linux-procfs.o linux-ptrace.o
linux-procfs.o linux-ptrace.o linux-btrace.o
NAT_FILE= config/nm-linux.h
NAT_CDEPS = $(srcdir)/proc-service.list

51
gdb/i386-linux-nat.c
View File

@ -25,6 +25,8 @@
#include "regset.h"
#include "target.h"
#include "linux-nat.h"
#include "linux-btrace.h"
#include "btrace.h"
#include "gdb_assert.h"
#include "gdb_string.h"
@ -1046,6 +1048,48 @@ i386_linux_read_description (struct target_ops *ops)
return tdesc_i386_linux;
}
/* Enable branch tracing. */
static struct btrace_target_info *
i386_linux_enable_btrace (ptid_t ptid)
{
struct btrace_target_info *tinfo;
struct gdbarch *gdbarch;
errno = 0;
tinfo = linux_enable_btrace (ptid);
if (tinfo == NULL)
error (_("Could not enable branch tracing for %s: %s."),
target_pid_to_str (ptid), safe_strerror (errno));
/* Fill in the size of a pointer in bits. */
gdbarch = target_thread_architecture (ptid);
tinfo->ptr_bits = gdbarch_ptr_bit (gdbarch);
return tinfo;
}
/* Disable branch tracing. */
static void
i386_linux_disable_btrace (struct btrace_target_info *tinfo)
{
int errcode = linux_disable_btrace (tinfo);
if (errcode != 0)
error (_("Could not disable branch tracing: %s."), safe_strerror (errcode));
}
/* Teardown branch tracing. */
static void
i386_linux_teardown_btrace (struct btrace_target_info *tinfo)
{
/* Ignore errors. */
linux_disable_btrace (tinfo);
}
/* -Wmissing-prototypes */
extern initialize_file_ftype _initialize_i386_linux_nat;
@ -1079,6 +1123,13 @@ _initialize_i386_linux_nat (void)
t->to_read_description = i386_linux_read_description;
/* Add btrace methods. */
t->to_supports_btrace = linux_supports_btrace;
t->to_enable_btrace = i386_linux_enable_btrace;
t->to_disable_btrace = i386_linux_disable_btrace;
t->to_teardown_btrace = i386_linux_teardown_btrace;
t->to_read_btrace = linux_read_btrace;
/* Register the target. */
linux_nat_add_target (t);
linux_nat_set_new_thread (t, i386_linux_new_thread);