/* Native-dependent code for LynxOS.
- Copyright 1993, 1994 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright 1993, 1994, 1995, 1996, 1999, 2000, 2001, 2003 Free
+ Software Foundation, Inc.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This file is part of GDB.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
+#include "gdbcore.h"
+#include "regcache.h"
#include <sys/ptrace.h>
-#include <sys/wait.h>
+#Include "gdb_wait.h"
#include <sys/fpp.h>
-static unsigned long registers_addr PARAMS ((int pid));
+static unsigned long registers_addr (int pid);
+static void fetch_core_registers (char *, unsigned, int, CORE_ADDR);
#define X(ENTRY)(offsetof(struct econtext, ENTRY))
static int regmap[] =
{
- X(eax),
- X(ecx),
- X(edx),
- X(ebx),
- X(esp), /* sp */
- X(ebp), /* fp */
- X(esi),
- X(edi),
- X(eip), /* pc */
- X(flags), /* ps */
- X(cs),
- X(ss),
- X(ds),
- X(es),
- X(ecode), /* Lynx doesn't give us either fs or gs, so */
- X(fault), /* we just substitute these two in the hopes
+ X (eax),
+ X (ecx),
+ X (edx),
+ X (ebx),
+ X (esp), /* sp */
+ X (ebp), /* fp */
+ X (esi),
+ X (edi),
+ X (eip), /* pc */
+ X (flags), /* ps */
+ X (cs),
+ X (ss),
+ X (ds),
+ X (es),
+ X (ecode), /* Lynx doesn't give us either fs or gs, so */
+ X (fault), /* we just substitute these two in the hopes
that they are useful. */
};
#endif /* I386 */
static int regmap[] =
{
- X(regs[0]), /* d0 */
- X(regs[1]), /* d1 */
- X(regs[2]), /* d2 */
- X(regs[3]), /* d3 */
- X(regs[4]), /* d4 */
- X(regs[5]), /* d5 */
- X(regs[6]), /* d6 */
- X(regs[7]), /* d7 */
- X(regs[8]), /* a0 */
- X(regs[9]), /* a1 */
- X(regs[10]), /* a2 */
- X(regs[11]), /* a3 */
- X(regs[12]), /* a4 */
- X(regs[13]), /* a5 */
- X(regs[14]), /* fp */
- offsetof (st_t, usp) - offsetof (st_t, ec), /* sp */
- X(status), /* ps */
- X(pc),
-
- X(fregs[0*3]), /* fp0 */
- X(fregs[1*3]), /* fp1 */
- X(fregs[2*3]), /* fp2 */
- X(fregs[3*3]), /* fp3 */
- X(fregs[4*3]), /* fp4 */
- X(fregs[5*3]), /* fp5 */
- X(fregs[6*3]), /* fp6 */
- X(fregs[7*3]), /* fp7 */
-
- X(fcregs[0]), /* fpcontrol */
- X(fcregs[1]), /* fpstatus */
- X(fcregs[2]), /* fpiaddr */
- X(ssw), /* fpcode */
- X(fault), /* fpflags */
+ X (regs[0]), /* d0 */
+ X (regs[1]), /* d1 */
+ X (regs[2]), /* d2 */
+ X (regs[3]), /* d3 */
+ X (regs[4]), /* d4 */
+ X (regs[5]), /* d5 */
+ X (regs[6]), /* d6 */
+ X (regs[7]), /* d7 */
+ X (regs[8]), /* a0 */
+ X (regs[9]), /* a1 */
+ X (regs[10]), /* a2 */
+ X (regs[11]), /* a3 */
+ X (regs[12]), /* a4 */
+ X (regs[13]), /* a5 */
+ X (regs[14]), /* fp */
+ offsetof (st_t, usp) - offsetof (st_t, ec), /* sp */
+ X (status), /* ps */
+ X (pc),
+
+ X (fregs[0 * 3]), /* fp0 */
+ X (fregs[1 * 3]), /* fp1 */
+ X (fregs[2 * 3]), /* fp2 */
+ X (fregs[3 * 3]), /* fp3 */
+ X (fregs[4 * 3]), /* fp4 */
+ X (fregs[5 * 3]), /* fp5 */
+ X (fregs[6 * 3]), /* fp6 */
+ X (fregs[7 * 3]), /* fp7 */
+
+ X (fcregs[0]), /* fpcontrol */
+ X (fcregs[1]), /* fpstatus */
+ X (fcregs[2]), /* fpiaddr */
+ X (ssw), /* fpcode */
+ X (fault), /* fpflags */
};
#endif /* M68K */
static int regmap[] =
{
-1, /* g0 */
- X(g1),
- X(g2),
- X(g3),
- X(g4),
+ X (g1),
+ X (g2),
+ X (g3),
+ X (g4),
-1, /* g5->g7 aren't saved by Lynx */
-1,
-1,
- X(o[0]),
- X(o[1]),
- X(o[2]),
- X(o[3]),
- X(o[4]),
- X(o[5]),
- X(o[6]), /* sp */
- X(o[7]), /* ra */
-
- -1,-1,-1,-1,-1,-1,-1,-1, /* l0 -> l7 */
-
- -1,-1,-1,-1,-1,-1,-1,-1, /* i0 -> i7 */
-
- FX(f.fregs[0]), /* f0 */
- FX(f.fregs[1]),
- FX(f.fregs[2]),
- FX(f.fregs[3]),
- FX(f.fregs[4]),
- FX(f.fregs[5]),
- FX(f.fregs[6]),
- FX(f.fregs[7]),
- FX(f.fregs[8]),
- FX(f.fregs[9]),
- FX(f.fregs[10]),
- FX(f.fregs[11]),
- FX(f.fregs[12]),
- FX(f.fregs[13]),
- FX(f.fregs[14]),
- FX(f.fregs[15]),
- FX(f.fregs[16]),
- FX(f.fregs[17]),
- FX(f.fregs[18]),
- FX(f.fregs[19]),
- FX(f.fregs[20]),
- FX(f.fregs[21]),
- FX(f.fregs[22]),
- FX(f.fregs[23]),
- FX(f.fregs[24]),
- FX(f.fregs[25]),
- FX(f.fregs[26]),
- FX(f.fregs[27]),
- FX(f.fregs[28]),
- FX(f.fregs[29]),
- FX(f.fregs[30]),
- FX(f.fregs[31]),
-
- X(y),
- X(psr),
- X(wim),
- X(tbr),
- X(pc),
- X(npc),
- FX(fsr), /* fpsr */
+ X (o[0]),
+ X (o[1]),
+ X (o[2]),
+ X (o[3]),
+ X (o[4]),
+ X (o[5]),
+ X (o[6]), /* sp */
+ X (o[7]), /* ra */
+
+ -1, -1, -1, -1, -1, -1, -1, -1, /* l0 -> l7 */
+
+ -1, -1, -1, -1, -1, -1, -1, -1, /* i0 -> i7 */
+
+ FX (f.fregs[0]), /* f0 */
+ FX (f.fregs[1]),
+ FX (f.fregs[2]),
+ FX (f.fregs[3]),
+ FX (f.fregs[4]),
+ FX (f.fregs[5]),
+ FX (f.fregs[6]),
+ FX (f.fregs[7]),
+ FX (f.fregs[8]),
+ FX (f.fregs[9]),
+ FX (f.fregs[10]),
+ FX (f.fregs[11]),
+ FX (f.fregs[12]),
+ FX (f.fregs[13]),
+ FX (f.fregs[14]),
+ FX (f.fregs[15]),
+ FX (f.fregs[16]),
+ FX (f.fregs[17]),
+ FX (f.fregs[18]),
+ FX (f.fregs[19]),
+ FX (f.fregs[20]),
+ FX (f.fregs[21]),
+ FX (f.fregs[22]),
+ FX (f.fregs[23]),
+ FX (f.fregs[24]),
+ FX (f.fregs[25]),
+ FX (f.fregs[26]),
+ FX (f.fregs[27]),
+ FX (f.fregs[28]),
+ FX (f.fregs[29]),
+ FX (f.fregs[30]),
+ FX (f.fregs[31]),
+
+ X (y),
+ X (psr),
+ X (wim),
+ X (tbr),
+ X (pc),
+ X (npc),
+ FX (fsr), /* fpsr */
-1, /* cpsr */
};
#endif /* SPARC */
static int regmap[] =
{
- X(iregs[0]), /* r0 */
- X(iregs[1]),
- X(iregs[2]),
- X(iregs[3]),
- X(iregs[4]),
- X(iregs[5]),
- X(iregs[6]),
- X(iregs[7]),
- X(iregs[8]),
- X(iregs[9]),
- X(iregs[10]),
- X(iregs[11]),
- X(iregs[12]),
- X(iregs[13]),
- X(iregs[14]),
- X(iregs[15]),
- X(iregs[16]),
- X(iregs[17]),
- X(iregs[18]),
- X(iregs[19]),
- X(iregs[20]),
- X(iregs[21]),
- X(iregs[22]),
- X(iregs[23]),
- X(iregs[24]),
- X(iregs[25]),
- X(iregs[26]),
- X(iregs[27]),
- X(iregs[28]),
- X(iregs[29]),
- X(iregs[30]),
- X(iregs[31]),
-
- X(fregs[0]), /* f0 */
- X(fregs[1]),
- X(fregs[2]),
- X(fregs[3]),
- X(fregs[4]),
- X(fregs[5]),
- X(fregs[6]),
- X(fregs[7]),
- X(fregs[8]),
- X(fregs[9]),
- X(fregs[10]),
- X(fregs[11]),
- X(fregs[12]),
- X(fregs[13]),
- X(fregs[14]),
- X(fregs[15]),
- X(fregs[16]),
- X(fregs[17]),
- X(fregs[18]),
- X(fregs[19]),
- X(fregs[20]),
- X(fregs[21]),
- X(fregs[22]),
- X(fregs[23]),
- X(fregs[24]),
- X(fregs[25]),
- X(fregs[26]),
- X(fregs[27]),
- X(fregs[28]),
- X(fregs[29]),
- X(fregs[30]),
- X(fregs[31]),
-
- X(srr0), /* IAR (PC) */
- X(srr1), /* MSR (PS) */
- X(cr), /* CR */
- X(lr), /* LR */
- X(ctr), /* CTR */
- X(xer), /* XER */
- X(mq) /* MQ */
+ X (iregs[0]), /* r0 */
+ X (iregs[1]),
+ X (iregs[2]),
+ X (iregs[3]),
+ X (iregs[4]),
+ X (iregs[5]),
+ X (iregs[6]),
+ X (iregs[7]),
+ X (iregs[8]),
+ X (iregs[9]),
+ X (iregs[10]),
+ X (iregs[11]),
+ X (iregs[12]),
+ X (iregs[13]),
+ X (iregs[14]),
+ X (iregs[15]),
+ X (iregs[16]),
+ X (iregs[17]),
+ X (iregs[18]),
+ X (iregs[19]),
+ X (iregs[20]),
+ X (iregs[21]),
+ X (iregs[22]),
+ X (iregs[23]),
+ X (iregs[24]),
+ X (iregs[25]),
+ X (iregs[26]),
+ X (iregs[27]),
+ X (iregs[28]),
+ X (iregs[29]),
+ X (iregs[30]),
+ X (iregs[31]),
+
+ X (fregs[0]), /* f0 */
+ X (fregs[1]),
+ X (fregs[2]),
+ X (fregs[3]),
+ X (fregs[4]),
+ X (fregs[5]),
+ X (fregs[6]),
+ X (fregs[7]),
+ X (fregs[8]),
+ X (fregs[9]),
+ X (fregs[10]),
+ X (fregs[11]),
+ X (fregs[12]),
+ X (fregs[13]),
+ X (fregs[14]),
+ X (fregs[15]),
+ X (fregs[16]),
+ X (fregs[17]),
+ X (fregs[18]),
+ X (fregs[19]),
+ X (fregs[20]),
+ X (fregs[21]),
+ X (fregs[22]),
+ X (fregs[23]),
+ X (fregs[24]),
+ X (fregs[25]),
+ X (fregs[26]),
+ X (fregs[27]),
+ X (fregs[28]),
+ X (fregs[29]),
+ X (fregs[30]),
+ X (fregs[31]),
+
+ X (srr0), /* IAR (PC) */
+ X (srr1), /* MSR (PS) */
+ X (cr), /* CR */
+ X (lr), /* LR */
+ X (ctr), /* CTR */
+ X (xer), /* XER */
+ X (mq) /* MQ */
};
#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 (regno)
- 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, inferior_pid, (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_xfer_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE(I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM), 0);
- for (i = I0_REGNUM; i <= I7_REGNUM; i++)
- register_valid[i] = 1;
-
- target_xfer_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE(L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM), 0);
- 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, inferior_pid, (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 (regno)
- 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, inferior_pid, (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])
- abort();
- target_xfer_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE (I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM), 1);
-
- target_xfer_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM), 1);
- }
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- {
- if (!register_valid[regno])
- abort();
- 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_xfer_memory (sp + regoffset, ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno), 1);
- }
- }
-
- 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, inferior_pid, (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, inferior_pid, (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
saved context block. */
static unsigned long
-registers_addr(pid)
- int pid;
+registers_addr (int pid)
{
CORE_ADDR stblock;
- int ecpoff = offsetof(st_t, ecp);
+ int ecpoff = offsetof (st_t, ecp);
CORE_ADDR ecp;
errno = 0;
- stblock = (CORE_ADDR) ptrace (PTRACE_THREADUSER, pid, (PTRACE_ARG3_TYPE)0,
+ stblock = (CORE_ADDR) ptrace (PTRACE_THREADUSER, pid, (PTRACE_ARG3_TYPE) 0,
0);
if (errno)
perror_with_name ("ptrace(PTRACE_THREADUSER)");
- ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, pid, (PTRACE_ARG3_TYPE)ecpoff,
+ ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, pid, (PTRACE_ARG3_TYPE) ecpoff,
0);
if (errno)
perror_with_name ("ptrace(PTRACE_PEEKTHREAD)");
marking them as valid so we won't fetch them again. */
void
-fetch_inferior_registers (regno)
- int regno;
+fetch_inferior_registers (int regno)
{
int reglo, reghi;
int i;
else
reglo = reghi = regno;
- ecp = registers_addr (inferior_pid);
-
- for (regno = reglo; regno <= reghi; regno++)
- {
- char buf[MAX_REGISTER_RAW_SIZE];
- int ptrace_fun = PTRACE_PEEKTHREAD;
+ ecp = registers_addr (PIDGET (inferior_ptid));
+ {
+ 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, inferior_pid,
- (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 < register_size (current_gdbarch, 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;
+ }
+ regcache_raw_supply (current_regcache, 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 (regno)
- int regno;
+store_inferior_registers (int regno)
{
int reglo, reghi;
int i;
else
reglo = reghi = regno;
- ecp = registers_addr (inferior_pid);
+ ecp = registers_addr (PIDGET (inferior_ptid));
for (regno = reglo; regno <= reghi; 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 < register_size (current_gdbarch, 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, inferior_pid,
+ ptrace (ptrace_fun, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) (ecp + regmap[regno] + i), reg);
if (errno)
perror_with_name ("ptrace(PTRACE_POKEUSP)");
/* Wait for child to do something. Return pid of child, or -1 in case
of error; store status through argument pointer OURSTATUS. */
-int
-child_wait (pid, ourstatus)
- int pid;
- struct target_waitstatus *ourstatus;
+ptid_t
+child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
int save_errno;
int thread;
union wait status;
+ int pid;
while (1)
{
int sig;
- set_sigint_trap(); /* Causes SIGINT to be passed on to the
+ set_sigint_trap (); /* Causes SIGINT to be passed on to the
attached process. */
pid = wait (&status);
save_errno = errno;
- clear_sigint_trap();
+ clear_sigint_trap ();
if (pid == -1)
{
if (save_errno == EINTR)
continue;
fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
- safe_strerror (save_errno));
+ safe_strerror (save_errno));
/* Claim it exited with unknown signal. */
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
return -1;
}
- if (pid != PIDGET (inferior_pid)) /* Some other process?!? */
+ if (pid != PIDGET (inferior_ptid)) /* Some other process?!? */
continue;
thread = status.w_tid; /* Get thread id from status */
/* Initial thread value can only be acquired via wait, so we have to
- resort to this hack. */
+ resort to this hack. */
- if (TIDGET (inferior_pid) == 0)
+ if (TIDGET (inferior_ptid) == 0 && thread != 0)
{
- inferior_pid = BUILDPID (inferior_pid, thread);
- add_thread (inferior_pid);
+ inferior_ptid = MERGEPID (PIDGET (inferior_ptid), thread);
+ add_thread (inferior_ptid);
}
- pid = BUILDPID (pid, thread);
+ ptid = BUILDPID (pid, thread);
- if (WIFSTOPPED(status)
- && WSTOPSIG(status) == SIGTRAP
- && !in_thread_list (pid))
+ /* We've become a single threaded process again. */
+ if (thread == 0)
+ inferior_ptid = ptid;
+
+ /* Check for thread creation. */
+ if (WIFSTOPPED (status)
+ && WSTOPSIG (status) == SIGTRAP
+ && !in_thread_list (ptid))
{
int realsig;
- realsig = ptrace (PTRACE_GETTRACESIG, pid, (PTRACE_ARG3_TYPE)0, 0);
+ realsig = ptrace (PTRACE_GETTRACESIG, PIDGET (ptid),
+ (PTRACE_ARG3_TYPE) 0, 0);
if (realsig == SIGNEWTHREAD)
{
- /* It's a new thread notification. Nothing to do here since
- the machine independent code in wait_for_inferior will
- add the thread to the thread list and restart the thread
- when pid != inferior_pid and pid is not in the thread
- list. We don't even want to much with realsig -- the
- code in wait_for_inferior expects SIGTRAP. */
- ;
+ /* It's a new thread notification. We don't want to much with
+ realsig -- the code in wait_for_inferior expects SIGTRAP. */
+ ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
+ ourstatus->value.sig = TARGET_SIGNAL_0;
+ return ptid;
}
else
error ("Signal for unknown thread was not SIGNEWTHREAD");
}
+ /* Check for thread termination. */
+ else if (WIFSTOPPED (status)
+ && WSTOPSIG (status) == SIGTRAP
+ && in_thread_list (ptid))
+ {
+ int realsig;
+
+ realsig = ptrace (PTRACE_GETTRACESIG, PIDGET (ptid),
+ (PTRACE_ARG3_TYPE) 0, 0);
+
+ if (realsig == SIGTHREADEXIT)
+ {
+ ptrace (PTRACE_CONT, PIDGET (ptid), (PTRACE_ARG3_TYPE) 0, 0);
+ continue;
+ }
+ }
+
#ifdef SPARC
/* SPARC Lynx uses an byte reversed wait status; we must use the
- host macros to access it. These lines just a copy of
- store_waitstatus. We can't use CHILD_SPECIAL_WAITSTATUS
- because target.c can't include the Lynx <sys/wait.h>. */
+ host macros to access it. These lines just a copy of
+ store_waitstatus. We can't use CHILD_SPECIAL_WAITSTATUS
+ because target.c can't include the Lynx <sys/wait.h>. */
if (WIFEXITED (status))
{
ourstatus->kind = TARGET_WAITKIND_EXITED;
store_waitstatus (ourstatus, status.w_status);
#endif
- return pid;
+ return ptid;
}
}
+/* Return nonzero if the given thread is still alive. */
+int
+child_thread_alive (ptid_t ptid)
+{
+ int pid = PIDGET (ptid);
+
+ /* Arggh. Apparently pthread_kill only works for threads within
+ the process that calls pthread_kill.
+
+ We want to avoid the lynx signal extensions as they simply don't
+ map well to the generic gdb interface we want to keep.
+
+ All we want to do is determine if a particular thread is alive;
+ it appears as if we can just make a harmless thread specific
+ ptrace call to do that. */
+ return (ptrace (PTRACE_THREADUSER, pid, 0, 0) != -1);
+}
+
/* Resume execution of the inferior process.
If STEP is nonzero, single-step it.
If SIGNAL is nonzero, give it that signal. */
void
-child_resume (pid, step, signal)
- int pid;
- int step;
- enum target_signal signal;
+child_resume (ptid_t ptid, int step, enum target_signal signal)
{
int func;
+ int pid = PIDGET (ptid);
errno = 0;
+ /* If pid == -1, then we want to step/continue all threads, else
+ we only want to step/continue a single thread. */
if (pid == -1)
{
- /* Resume all threads. */
-
- pid = inferior_pid;
+ pid = PIDGET (inferior_ptid);
+ func = step ? PTRACE_SINGLESTEP : PTRACE_CONT;
}
+ else
+ func = step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT_ONE;
- func = step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT;
/* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
it was. (If GDB wanted it to start some other way, we have already
buffer. */
char *
-lynx_pid_to_str (pid)
- int pid;
+child_pid_to_str (ptid_t ptid)
{
static char buf[40];
- sprintf (buf, "process %d thread %d", PIDGET (pid), TIDGET (pid));
+ sprintf (buf, "process %d thread %d", PIDGET (ptid), TIDGET (ptid));
return buf;
}
CORE_REG_SECT points to the register values themselves, read into memory.
CORE_REG_SIZE is the size of that area.
WHICH says which set of registers we are handling (0 = int, 2 = float
- on machines where they are discontiguous).
+ on machines where they are discontiguous).
REG_ADDR is the offset from u.u_ar0 to the register values relative to
- core_reg_sect. This is used with old-fashioned core files to
- locate the registers in a large upage-plus-stack ".reg" section.
- Original upage address X is at location core_reg_sect+x+reg_addr.
+ core_reg_sect. This is used with old-fashioned core files to
+ locate the registers in a large upage-plus-stack ".reg" section.
+ Original upage address X is at location core_reg_sect+x+reg_addr.
*/
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- unsigned reg_addr;
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
+ CORE_ADDR reg_addr)
{
struct st_entry s;
unsigned int regno;
for (regno = 0; regno < NUM_REGS; regno++)
if (regmap[regno] != -1)
- supply_register (regno, core_reg_sect + offsetof (st_t, ec)
- + regmap[regno]);
+ regcache_raw_supply (current_regcache, regno,
+ core_reg_sect + offsetof (st_t, ec) + regmap[regno]);
#ifdef SPARC
/* Fetching this register causes all of the I & L regs to be read from the
fetch_inferior_registers (I0_REGNUM);
#endif
}
+\f
+
+/* Register that we are able to handle lynx core file formats.
+ FIXME: is this really bfd_target_unknown_flavour? */
+
+static struct core_fns lynx_core_fns =
+{
+ bfd_target_unknown_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ NULL /* next */
+};
+
+void
+_initialize_core_lynx (void)
+{
+ deprecated_add_core_fns (&lynx_core_fns);
+}
projects / binutils.git / blobdiff