-/* sparc-dependent portions of the RPC protocol
- used with a VxWorks target
+/* SPARC-specific portions of the RPC protocol for VxWorks.
Contributed by Wind River Systems.
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <stdio.h>
#include "defs.h"
-
-#include "vx-share/regPacket.h"
-#include "frame.h"
-#include "inferior.h"
-#include "target.h"
-#include "gdbcore.h"
-#include "command.h"
-#include "symtab.h"
-#include "symfile.h" /* for struct complaint */
+#include "regcache.h"
#include "gdb_string.h"
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-
-#ifdef _AIX /* IBM claims "void *malloc()" not char * */
-#define malloc bogon_malloc
-#endif
-
-#include <rpc/rpc.h>
-#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
-#include <netdb.h>
-#include "vx-share/ptrace.h"
-#include "vx-share/xdr_ptrace.h"
-#include "vx-share/xdr_ld.h"
-#include "vx-share/xdr_rdb.h"
-#include "vx-share/dbgRpcLib.h"
-/* get rid of value.h if possible */
-#include <value.h>
-#include <symtab.h>
+#include "sparc-tdep.h"
-/* Flag set if target has fpu */
+#include "vx-share/ptrace.h"
+#include "vx-share/regPacket.h"
-extern int target_has_fp;
+#define SPARC_R_G1 (SPARC_R_G0 + SPARC_GREG_SIZE)
-/* sparc floating point format descriptor, from "sparc-tdep.c." */
+const struct sparc_gregset vxsparc_gregset =
+{
+ SPARC_R_PSR, /* %psr */
+ SPARC_R_PC, /* %pc */
+ SPARC_R_NPC, /* %npc */
+ SPARC_R_Y, /* %y */
+ SPARC_R_WIM, /* %wim */
+ SPARC_R_TBR, /* %tbr */
+ SPARC_R_G1, /* %g1 */
+ SPARC_R_I0 /* %l0 */
+};
+
+/* Flag set if target has an FPU. */
-extern struct ext_format ext_format_sparc;
+extern int target_has_fp;
/* Generic register read/write routines in remote-vx.c. */
extern void net_read_registers ();
extern void net_write_registers ();
-/* Read a register or registers from the VxWorks target.
- REGNO is the register to read, or -1 for all; currently,
- it is ignored. FIXME look at regno to improve efficiency. */
+/* Read a register or registers from the VxWorks target. REGNUM is
+ the register to read, or -1 for all; currently, it is ignored.
+ FIXME: Look at REGNUM to improve efficiency. */
void
-vx_read_register (int regno)
+vx_read_register (int regnum)
{
- char sparc_greg_packet[SPARC_GREG_PLEN];
- char sparc_fpreg_packet[SPARC_FPREG_PLEN];
+ struct regcache *regcache = current_regcache;
+ char gregs[SPARC_GREG_PLEN];
+ char fpregs[SPARC_FPREG_PLEN];
CORE_ADDR sp;
- /* Get general-purpose registers. When copying values into
- registers [], don't assume that a location in registers []
- is properly aligned for the target data type. */
-
- net_read_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_GETREGS);
-
- /* Now copy the register values into registers[].
- Note that this code depends on the ordering of the REGNUMs
- as defined in "tm-sparc.h". */
-
- bcopy (&sparc_greg_packet[SPARC_R_G0],
- ®isters[REGISTER_BYTE (G0_REGNUM)], 32 * SPARC_GREG_SIZE);
- bcopy (&sparc_greg_packet[SPARC_R_Y],
- ®isters[REGISTER_BYTE (Y_REGNUM)], 6 * SPARC_GREG_SIZE);
-
- /* Now write the local and in registers to the register window
- spill area in the frame. VxWorks does not do this for the
- active frame automatically; it greatly simplifies debugging
- (FRAME_FIND_SAVED_REGS, in particular, depends on this). */
-
- sp = extract_address (®isters[REGISTER_BYTE (SP_REGNUM)],
- REGISTER_RAW_SIZE (CORE_ADDR));
- write_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16 * REGISTER_RAW_SIZE (L0_REGNUM));
-
- /* If the target has floating point registers, fetch them.
- Otherwise, zero the floating point register values in
- registers[] for good measure, even though we might not
- need to. */
+ /* Get the general-purpose registers. */
+ net_read_registers (gregs, SPARC_GREG_PLEN, PTRACE_GETREGS);
+ sparc32_supply_gregset (&vxsparc_gregset, regcache, -1, gregs);
+ /* If the target has floating-point registers, fetch them.
+ Otherwise, zero the floating-point register values in GDB's
+ register cache for good measure, even though we might not need
+ to. */
if (target_has_fp)
- {
- net_read_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN,
- PTRACE_GETFPREGS);
- bcopy (&sparc_fpreg_packet[SPARC_R_FP0],
- ®isters[REGISTER_BYTE (FP0_REGNUM)], 32 * SPARC_FPREG_SIZE);
- bcopy (&sparc_fpreg_packet[SPARC_R_FSR],
- ®isters[REGISTER_BYTE (FPS_REGNUM)], 1 * SPARC_FPREG_SIZE);
- }
+ net_read_registers (fpregs, SPARC_FPREG_PLEN, PTRACE_GETFPREGS);
else
- {
- bzero (®isters[REGISTER_BYTE (FP0_REGNUM)], 32 * SPARC_FPREG_SIZE);
- bzero (®isters[REGISTER_BYTE (FPS_REGNUM)], 1 * SPARC_FPREG_SIZE);
- }
-
- /* Mark the register cache valid. */
-
- registers_fetched ();
+ memset (fpregs, 0, SPARC_FPREG_PLEN);
+ sparc32_supply_fpregset (regcache, -1, fpregs);
}
-/* Store a register or registers into the VxWorks target.
- REGNO is the register to store, or -1 for all; currently,
- it is ignored. FIXME look at regno to improve efficiency. */
+/* Store a register or registers into the VxWorks target. REGNUM is
+ the register to store, or -1 for all; currently, it is ignored.
+ FIXME: Look at REGNUM to improve efficiency. */
void
-vx_write_register (int regno)
+vx_write_register (int regnum)
{
- char sparc_greg_packet[SPARC_GREG_PLEN];
- char sparc_fpreg_packet[SPARC_FPREG_PLEN];
- int in_gp_regs;
- int in_fp_regs;
+ struct regcache *regcache = current_regcache;
+ char gregs[SPARC_GREG_PLEN];
+ char fpregs[SPARC_FPREG_PLEN];
+ int gregs_p = 1;
+ int fpregs_p = 1;
CORE_ADDR sp;
- /* Store general purpose registers. When copying values from
- registers [], don't assume that a location in registers []
- is properly aligned for the target data type. */
-
- in_gp_regs = 1;
- in_fp_regs = 1;
- if (regno >= 0)
+ if (regnum != -1)
{
- if ((G0_REGNUM <= regno && regno <= I7_REGNUM)
- || (Y_REGNUM <= regno && regno <= NPC_REGNUM))
- in_fp_regs = 0;
+ if ((SPARC_G0_REGNUM <= regnum && regnum <= SPARC_I7_REGNUM)
+ || (SPARC32_Y_REGNUM <= regnum && regnum <= SPARC32_NPC_REGNUM))
+ fpregs_p = 0;
else
- in_gp_regs = 0;
+ gregs_p = 0;
}
- if (in_gp_regs)
- {
- bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
- &sparc_greg_packet[SPARC_R_G0], 32 * SPARC_GREG_SIZE);
- bcopy (®isters[REGISTER_BYTE (Y_REGNUM)],
- &sparc_greg_packet[SPARC_R_Y], 6 * SPARC_GREG_SIZE);
-
- net_write_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_SETREGS);
- /* If this is a local or in register, or we're storing all
- registers, update the register window spill area. */
+ /* Store the general-purpose registers. */
+ if (gregs_p)
+ {
+ sparc32_collect_gregset (&vxsparc_gregset, regcache, -1, gregs);
+ net_write_registers (gregs, SPARC_GREG_PLEN, PTRACE_SETREGS);
- if (regno < 0 || (L0_REGNUM <= regno && regno <= I7_REGNUM))
+ /* Deal with the stack regs. */
+ if (regnum == -1 || regnum == SPARC_SP_REGNUM
+ || (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM))
{
- sp = extract_address (®isters[REGISTER_BYTE (SP_REGNUM)],
- REGISTER_RAW_SIZE (CORE_ADDR));
- write_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16 * REGISTER_RAW_SIZE (L0_REGNUM));
+ ULONGEST sp;
+
+ regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp);
+ sparc_collect_rwindow (regcache, sp, regnum);
}
}
- /* Store floating point registers if the target has them. */
-
- if (in_fp_regs && target_has_fp)
+ /* Store the floating-point registers if the target has them. */
+ if (fpregs_p && target_has_fp)
{
- bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],
- &sparc_fpreg_packet[SPARC_R_FP0], 32 * SPARC_FPREG_SIZE);
- bcopy (®isters[REGISTER_BYTE (FPS_REGNUM)],
- &sparc_fpreg_packet[SPARC_R_FSR], 1 * SPARC_FPREG_SIZE);
-
- net_write_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN,
- PTRACE_SETFPREGS);
+ sparc32_collect_fpregset (regcache, -1, fpregs);
+ net_write_registers (fpregs, SPARC_FPREG_PLEN, PTRACE_SETFPREGS);
}
}
projects / deliverable / binutils-gdb.git / blobdiff