/* Native-dependent code for LynxOS.
- Copyright 1993, 1994, 1995, 1996, 1999, 2000, 2001
- Free Software Foundation, Inc.
+
+ Copyright 1993, 1994, 1995, 1996, 1999, 2000, 2001, 2003 Free
+ Software Foundation, Inc.
This file is part of GDB.
#include "regcache.h"
#include <sys/ptrace.h>
-#include <sys/wait.h>
+#Include "gdb_wait.h"
#include <sys/fpp.h>
static unsigned long registers_addr (int pid);
#endif /* rs6000 */
-#ifdef SPARC
-
-/* This routine handles some oddball cases for Sparc registers and LynxOS.
- In partucular, it causes refs to G0, g5->7, and all fp regs to return zero.
- It also handles knows where to find the I & L regs on the stack. */
-
-void
-fetch_inferior_registers (int regno)
-{
- int whatregs = 0;
-
-#define WHATREGS_FLOAT 1
-#define WHATREGS_GEN 2
-#define WHATREGS_STACK 4
-
- if (regno == -1)
- whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- whatregs = WHATREGS_STACK;
- else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
- whatregs = WHATREGS_FLOAT;
- else
- whatregs = WHATREGS_GEN;
-
- if (whatregs & WHATREGS_GEN)
- {
- struct econtext ec; /* general regs */
- char buf[MAX_REGISTER_RAW_SIZE];
- int retval;
- int i;
-
- errno = 0;
- retval = ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & ec, 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_GETREGS)");
-
- memset (buf, 0, REGISTER_RAW_SIZE (G0_REGNUM));
- supply_register (G0_REGNUM, buf);
- supply_register (TBR_REGNUM, (char *) &ec.tbr);
-
- memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &ec.g1,
- 4 * REGISTER_RAW_SIZE (G1_REGNUM));
- for (i = G1_REGNUM; i <= G1_REGNUM + 3; i++)
- register_valid[i] = 1;
-
- supply_register (PS_REGNUM, (char *) &ec.psr);
- supply_register (Y_REGNUM, (char *) &ec.y);
- supply_register (PC_REGNUM, (char *) &ec.pc);
- supply_register (NPC_REGNUM, (char *) &ec.npc);
- supply_register (WIM_REGNUM, (char *) &ec.wim);
-
- memcpy (®isters[REGISTER_BYTE (O0_REGNUM)], ec.o,
- 8 * REGISTER_RAW_SIZE (O0_REGNUM));
- for (i = O0_REGNUM; i <= O0_REGNUM + 7; i++)
- register_valid[i] = 1;
- }
-
- if (whatregs & WHATREGS_STACK)
- {
- CORE_ADDR sp;
- int i;
-
- sp = read_register (SP_REGNUM);
-
- target_read_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE (I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM));
- for (i = I0_REGNUM; i <= I7_REGNUM; i++)
- register_valid[i] = 1;
-
- target_read_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM));
- for (i = L0_REGNUM; i <= L0_REGNUM + 7; i++)
- register_valid[i] = 1;
- }
-
- if (whatregs & WHATREGS_FLOAT)
- {
- struct fcontext fc; /* fp regs */
- int retval;
- int i;
-
- errno = 0;
- retval = ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & fc, 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_GETFPREGS)");
-
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fc.f.fregs,
- 32 * REGISTER_RAW_SIZE (FP0_REGNUM));
- for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
- register_valid[i] = 1;
-
- supply_register (FPS_REGNUM, (char *) &fc.fsr);
- }
-}
-
-/* This routine handles storing of the I & L regs for the Sparc. The trick
- here is that they actually live on the stack. The really tricky part is
- that when changing the stack pointer, the I & L regs must be written to
- where the new SP points, otherwise the regs will be incorrect when the
- process is started up again. We assume that the I & L regs are valid at
- this point. */
-
-void
-store_inferior_registers (int regno)
-{
- int whatregs = 0;
-
- if (regno == -1)
- whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- whatregs = WHATREGS_STACK;
- else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
- whatregs = WHATREGS_FLOAT;
- else if (regno == SP_REGNUM)
- whatregs = WHATREGS_STACK | WHATREGS_GEN;
- else
- whatregs = WHATREGS_GEN;
-
- if (whatregs & WHATREGS_GEN)
- {
- struct econtext ec; /* general regs */
- int retval;
-
- ec.tbr = read_register (TBR_REGNUM);
- memcpy (&ec.g1, ®isters[REGISTER_BYTE (G1_REGNUM)],
- 4 * REGISTER_RAW_SIZE (G1_REGNUM));
-
- ec.psr = read_register (PS_REGNUM);
- ec.y = read_register (Y_REGNUM);
- ec.pc = read_register (PC_REGNUM);
- ec.npc = read_register (NPC_REGNUM);
- ec.wim = read_register (WIM_REGNUM);
-
- memcpy (ec.o, ®isters[REGISTER_BYTE (O0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (O0_REGNUM));
-
- errno = 0;
- retval = ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & ec, 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_SETREGS)");
- }
-
- if (whatregs & WHATREGS_STACK)
- {
- int regoffset;
- CORE_ADDR sp;
-
- sp = read_register (SP_REGNUM);
-
- if (regno == -1 || regno == SP_REGNUM)
- {
- if (!register_valid[L0_REGNUM + 5])
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
- target_write_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE (I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM));
-
- target_write_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM));
- }
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- {
- if (!register_valid[regno])
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
- if (regno >= L0_REGNUM && regno <= L0_REGNUM + 7)
- regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM)
- + FRAME_SAVED_L0;
- else
- regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (I0_REGNUM)
- + FRAME_SAVED_I0;
- target_write_memory (sp + regoffset,
- ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno));
- }
- }
-
- if (whatregs & WHATREGS_FLOAT)
- {
- struct fcontext fc; /* fp regs */
- int retval;
-
-/* We read fcontext first so that we can get good values for fq_t... */
- errno = 0;
- retval = ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & fc, 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_GETFPREGS)");
-
- memcpy (fc.f.fregs, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- 32 * REGISTER_RAW_SIZE (FP0_REGNUM));
-
- fc.fsr = read_register (FPS_REGNUM);
-
- errno = 0;
- retval = ptrace (PTRACE_SETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & fc, 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_SETFPREGS)");
- }
-}
-#endif /* SPARC */
-
#if defined (I386) || defined (M68K) || defined (rs6000)
/* Return the offset relative to the start of the per-thread data to the
ecp = registers_addr (PIDGET (inferior_ptid));
- for (regno = reglo; regno <= reghi; regno++)
- {
- char buf[MAX_REGISTER_RAW_SIZE];
- int ptrace_fun = PTRACE_PEEKTHREAD;
-
+ {
+ char buf[MAX_REGISTER_SIZE];
+ for (regno = reglo; regno <= reghi; regno++)
+ {
+ int ptrace_fun = PTRACE_PEEKTHREAD;
+
#ifdef M68K
- ptrace_fun = regno == SP_REGNUM ? PTRACE_PEEKUSP : PTRACE_PEEKTHREAD;
+ ptrace_fun = regno == SP_REGNUM ? PTRACE_PEEKUSP : PTRACE_PEEKTHREAD;
#endif
-
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
- {
- unsigned int reg;
-
- errno = 0;
- reg = ptrace (ptrace_fun, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) (ecp + regmap[regno] + i), 0);
- if (errno)
- perror_with_name ("ptrace(PTRACE_PEEKUSP)");
-
- *(int *) &buf[i] = reg;
- }
- supply_register (regno, buf);
- }
+
+ for (i = 0; i < DEPRECATED_REGISTER_RAW_SIZE (regno); i += sizeof (int))
+ {
+ unsigned int reg;
+
+ errno = 0;
+ reg = ptrace (ptrace_fun, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) (ecp + regmap[regno] + i), 0);
+ if (errno)
+ perror_with_name ("ptrace(PTRACE_PEEKUSP)");
+
+ *(int *) &buf[i] = reg;
+ }
+ supply_register (regno, buf);
+ }
+ }
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
-/* Registers we shouldn't try to store. */
-#if !defined (CANNOT_STORE_REGISTER)
-#define CANNOT_STORE_REGISTER(regno) 0
-#endif
-
void
store_inferior_registers (int regno)
{
ptrace_fun = regno == SP_REGNUM ? PTRACE_POKEUSP : PTRACE_POKEUSER;
#endif
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
+ for (i = 0; i < DEPRECATED_REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
unsigned int reg;
- reg = *(unsigned int *) ®isters[REGISTER_BYTE (regno) + i];
+ reg = *(unsigned int *) &deprecated_registers[DEPRECATED_REGISTER_BYTE (regno) + i];
errno = 0;
ptrace (ptrace_fun, PIDGET (inferior_ptid),
void
_initialize_core_lynx (void)
{
- add_core_fns (&lynx_core_fns);
+ deprecated_add_core_fns (&lynx_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff