Differential D14148 Diff 40284 head/devel/gdb/files/kgdb/amd64fbsd-kern.c

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head/devel/gdb/files/kgdb/amd64fbsd-kern.c

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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.		* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/		*/

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <sys/types.h>		#include "defs.h"
#ifdef __amd64__		#include "frame-unwind.h"
#include <machine/pcb.h>
#include <machine/frame.h>
#endif
#include <string.h>

#include <defs.h>
#include <frame-unwind.h>
#include "gdbcore.h"		#include "gdbcore.h"
#include "osabi.h"		#include "osabi.h"
#include <regcache.h>		#include "regcache.h"
#include "solib.h"		#include "solib.h"
#include "stack.h"		#include "stack.h"
#include "symtab.h"		#include "symtab.h"
#include "trad-frame.h"		#include "trad-frame.h"
#include <amd64-tdep.h>		#include "amd64-tdep.h"
		#include "x86-xstate.h"

		#ifdef __amd64__
		#include <machine/pcb.h>
		#include <machine/frame.h>
		#endif

#include "kgdb.h"		#include "kgdb.h"

static const int amd64fbsd_pcb_offset[] = {		static const int amd64fbsd_pcb_offset[] = {
-1, /* %rax */		-1, /* %rax */
6 * 8, /* %rbx */		6 * 8, /* %rbx */
-1, /* %rcx */		-1, /* %rcx */
-1, /* %rdx */		-1, /* %rdx */
-1, /* %rsi */		-1, /* %rsi */
Show All 27 Lines	amd64fbsd_supply_pcb(struct regcache *regcache, CORE_ADDR pcb_addr)
gdb_byte buf[8];		gdb_byte buf[8];
int i;		int i;

for (i = 0; i < ARRAY_SIZE (amd64fbsd_pcb_offset); i++)		for (i = 0; i < ARRAY_SIZE (amd64fbsd_pcb_offset); i++)
if (amd64fbsd_pcb_offset[i] != -1) {		if (amd64fbsd_pcb_offset[i] != -1) {
if (target_read_memory(pcb_addr + amd64fbsd_pcb_offset[i], buf,		if (target_read_memory(pcb_addr + amd64fbsd_pcb_offset[i], buf,
sizeof buf) != 0)		sizeof buf) != 0)
continue;		continue;
regcache_raw_supply(regcache, i, buf);		regcache->raw_supply(i, buf);
}		}

regcache_raw_supply_unsigned(regcache, AMD64_CS_REGNUM, CODE_SEL);		regcache->raw_supply_unsigned(AMD64_CS_REGNUM, CODE_SEL);
regcache_raw_supply_unsigned(regcache, AMD64_SS_REGNUM, DATA_SEL);		regcache->raw_supply_unsigned(AMD64_SS_REGNUM, DATA_SEL);
}		}

static const int amd64fbsd_trapframe_offset[] = {		static const int amd64fbsd_trapframe_offset[] = {
6 * 8, /* %rax */		6 * 8, /* %rax */
7 * 8, /* %rbx */		7 * 8, /* %rbx */
3 * 8, /* %rcx */		3 * 8, /* %rcx */
2 * 8, /* %rdx */		2 * 8, /* %rdx */
1 * 8, /* %rsi */		1 * 8, /* %rsi */
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amd64fbsd_trapframe_sniffer (const struct frame_unwind *self,		amd64fbsd_trapframe_sniffer (const struct frame_unwind *self,
struct frame_info *this_frame,		struct frame_info *this_frame,
void **this_prologue_cache)		void **this_prologue_cache)
{		{
const char *name;		const char *name;

find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL);		find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL);
return (name && ((strcmp (name, "calltrap") == 0)		return (name && ((strcmp (name, "calltrap") == 0)
		\|\| (strcmp (name, "fast_syscall_common") == 0)
\|\| (strcmp (name, "fork_trampoline") == 0)		\|\| (strcmp (name, "fork_trampoline") == 0)
\|\| (strcmp (name, "mchk_calltrap") == 0)		\|\| (strcmp (name, "mchk_calltrap") == 0)
\|\| (strcmp (name, "nmi_calltrap") == 0)		\|\| (strcmp (name, "nmi_calltrap") == 0)
\|\| (name[0] == 'X' && name[1] != '_')));		\|\| (name[0] == 'X' && name[1] != '_')));
}		}

static const struct frame_unwind amd64fbsd_trapframe_unwind = {		static const struct frame_unwind amd64fbsd_trapframe_unwind = {
SIGTRAMP_FRAME,		SIGTRAMP_FRAME,
default_frame_unwind_stop_reason,		default_frame_unwind_stop_reason,
amd64fbsd_trapframe_this_id,		amd64fbsd_trapframe_this_id,
amd64fbsd_trapframe_prev_register,		amd64fbsd_trapframe_prev_register,
NULL,		NULL,
amd64fbsd_trapframe_sniffer		amd64fbsd_trapframe_sniffer
};		};

static void		static void
amd64fbsd_kernel_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)		amd64fbsd_kernel_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
{		{

amd64_init_abi(info, gdbarch);		amd64_init_abi(info, gdbarch,
		amd64_target_description (X86_XSTATE_SSE_MASK));

frame_unwind_prepend_unwinder(gdbarch, &amd64fbsd_trapframe_unwind);		frame_unwind_prepend_unwinder(gdbarch, &amd64fbsd_trapframe_unwind);

set_solib_ops(gdbarch, &kld_so_ops);		set_solib_ops(gdbarch, &kld_so_ops);

fbsd_vmcore_set_supply_pcb(gdbarch, amd64fbsd_supply_pcb);		fbsd_vmcore_set_supply_pcb(gdbarch, amd64fbsd_supply_pcb);
fbsd_vmcore_set_cpu_pcb_addr(gdbarch, kgdb_trgt_stop_pcb);		fbsd_vmcore_set_cpu_pcb_addr(gdbarch, kgdb_trgt_stop_pcb);
}		}

void _initialize_amd64_kgdb_tdep(void);

void		void
_initialize_amd64_kgdb_tdep(void)		_initialize_amd64_kgdb_tdep(void)
{		{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,		gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_FREEBSD_KERNEL, amd64fbsd_kernel_init_abi);		GDB_OSABI_FREEBSD_KERNEL, amd64fbsd_kernel_init_abi);

#ifdef __amd64__		#ifdef __amd64__
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