#include <sys/ptrace.h>
#include <sys/wait.h>
+#include <sys/fpp.h>
static unsigned long registers_addr PARAMS ((int pid));
};
#endif
+#ifdef SPARC
+/* Mappings from tm-sparc.h */
+
+#define FX(ENTRY)(offsetof(struct fcontext, ENTRY))
+
+static int regmap[] =
+{
+ -1, /* g0 */
+ 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 */
+ -1, /* cpsr */
+};
+#endif
+
+#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 ("Sparc fetch_inferior_registers(ptrace)");
+
+ 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, ®isters[REGISTER_BYTE(I0_REGNUM)],
+ 8 * REGISTER_RAW_SIZE (I0_REGNUM), 0);
+ for (i = I0_REGNUM; i <= I7_REGNUM; i++)
+ register_valid[i] = 1;
+
+ sp += 8 * REGISTER_RAW_SIZE (I0_REGNUM);
+
+ target_xfer_memory (sp, ®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 ("Sparc fetch_inferior_registers(ptrace)");
+
+ 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 ("Sparc fetch_inferior_registers(ptrace)");
+ }
+
+ 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, ®isters[REGISTER_BYTE (I0_REGNUM)],
+ 8 * REGISTER_RAW_SIZE (I0_REGNUM), 1);
+ sp += 8 * REGISTER_RAW_SIZE (I0_REGNUM);
+ target_xfer_memory (sp, ®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)
+ + 8 * REGISTER_RAW_SIZE (I0_REGNUM);
+ else
+ regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (I0_REGNUM);
+ 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 ("Sparc fetch_inferior_registers(ptrace)");
+
+ 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 ("Sparc fetch_inferior_registers(ptrace)");
+ }
+}
+#endif
+
+#ifndef SPARC
+
/* Return the offset relative to the start of the per-thread data to the
saved context block. */
ecp = registers_addr (inferior_pid);
- for (regno = reglo; regno <= reghi; regno++)
+ for (regno = reglo; regno <= reghi && regmap[regno] != -1; regno++)
{
char buf[MAX_REGISTER_RAW_SIZE];
int ptrace_fun = PTRACE_PEEKTHREAD;
ecp = registers_addr (inferior_pid);
- for (regno = reglo; regno <= reghi; regno++)
+ for (regno = reglo; regno <= reghi && regmap[regno] != -1; regno++)
{
int ptrace_fun = PTRACE_POKEUSER;
}
}
}
+#endif /* ifndef SPARC */
/* Wait for child to do something. Return pid of child, or -1 in case
of error; store status through argument pointer OURSTATUS. */
if (attach_flag)
set_sigint_trap(); /* Causes SIGINT to be passed on to the
attached process. */
- pid = wait (status);
+ pid = wait (&status);
+#ifdef SPARC
+/* Swap halves of status so that the rest of GDB can understand it */
+ status = (status << 16) | ((unsigned)status >> 16);
+#endif
+
save_errno = errno;
if (attach_flag)
-/* Native-dependent code for Sparc running LynxOS.
- Copyright (C) 1989, 1992, Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include "defs.h"
-#include "inferior.h"
-#include "target.h"
-
-#include <signal.h>
-#include <sys/ptrace.h>
-#include <sys/wait.h>
-#if 0
-#include <machine/reg.h>
-#endif
-
-/* We don't store all registers immediately when requested, since they
- get sent over in large chunks anyway. Instead, we accumulate most
- of the changes and send them over once. "deferred_stores" keeps
- track of which sets of registers we have locally-changed copies of,
- so we only need send the groups that have changed. */
-
-#define INT_REGS 1
-#define STACK_REGS 2
-#define FP_REGS 4
-
-/* Fetch one or more registers from the inferior. REGNO == -1 to get
- them all. We actually fetch more than requested, when convenient,
- marking them as valid so we won't fetch them again. */
-
-void
-fetch_inferior_registers (regno)
- int regno;
-{
-#if 0
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- int i;
-
- /* We should never be called with deferred stores, because a prerequisite
- for writing regs is to have fetched them all (PREPARE_TO_STORE), sigh. */
- if (deferred_stores) abort();
-
- DO_DEFERRED_STORES;
-
- /* Global and Out regs are fetched directly, as well as the control
- registers. If we're getting one of the in or local regs,
- and the stack pointer has not yet been fetched,
- we have to do that first, since they're found in memory relative
- to the stack pointer. */
- if (regno < O7_REGNUM /* including -1 */
- || regno >= Y_REGNUM
- || (!register_valid[SP_REGNUM] && regno < I7_REGNUM))
- {
- if (0 != ptrace (PTRACE_GETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers, 0))
- perror("ptrace_getregs");
-
- registers[REGISTER_BYTE (0)] = 0;
- memcpy (®isters[REGISTER_BYTE (1)], &inferior_registers.r_g1,
- 15 * REGISTER_RAW_SIZE (G0_REGNUM));
- *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
- *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
- *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc;
- *(int *)®isters[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y;
-
- for (i = G0_REGNUM; i <= O7_REGNUM; i++)
- register_valid[i] = 1;
- register_valid[Y_REGNUM] = 1;
- register_valid[PS_REGNUM] = 1;
- register_valid[PC_REGNUM] = 1;
- register_valid[NPC_REGNUM] = 1;
- /* If we don't set these valid, read_register_bytes() rereads
- all the regs every time it is called! FIXME. */
- register_valid[WIM_REGNUM] = 1; /* Not true yet, FIXME */
- register_valid[TBR_REGNUM] = 1; /* Not true yet, FIXME */
- register_valid[FPS_REGNUM] = 1; /* Not true yet, FIXME */
- register_valid[CPS_REGNUM] = 1; /* Not true yet, FIXME */
- }
-
- /* Floating point registers */
- if (regno == -1 || (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31))
- {
- if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers,
- 0))
- perror("ptrace_getfpregs");
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fpu_fr);
- /* memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)],
- &inferior_fp_registers.Fpu_fsr,
- sizeof (FPU_FSR_TYPE)); FIXME??? -- gnu@cyg */
- for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++)
- register_valid[i] = 1;
- register_valid[FPS_REGNUM] = 1;
- }
-
- /* These regs are saved on the stack by the kernel. Only read them
- all (16 ptrace calls!) if we really need them. */
- if (regno == -1)
- {
- target_xfer_memory (*(CORE_ADDR*)®isters[REGISTER_BYTE (SP_REGNUM)],
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16*REGISTER_RAW_SIZE (L0_REGNUM), 0);
- for (i = L0_REGNUM; i <= I7_REGNUM; i++)
- register_valid[i] = 1;
- }
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- {
- CORE_ADDR sp = *(CORE_ADDR*)®isters[REGISTER_BYTE (SP_REGNUM)];
- i = REGISTER_BYTE (regno);
- if (register_valid[regno])
- printf("register %d valid and read\n", regno);
- target_xfer_memory (sp + i - REGISTER_BYTE (L0_REGNUM),
- ®isters[i], REGISTER_RAW_SIZE (regno), 0);
- register_valid[regno] = 1;
- }
-#endif
-}
-
-/* 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). */
-
-void
-store_inferior_registers (regno)
- int regno;
-{
-#if 0
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- int wanna_store = INT_REGS + STACK_REGS + FP_REGS;
-
- /* First decide which pieces of machine-state we need to modify.
- Default for regno == -1 case is all pieces. */
- if (regno >= 0)
- if (FP0_REGNUM <= regno && regno < FP0_REGNUM + 32)
- {
- wanna_store = FP_REGS;
- }
- else
- {
- if (regno == SP_REGNUM)
- wanna_store = INT_REGS + STACK_REGS;
- else if (regno < L0_REGNUM || regno > I7_REGNUM)
- wanna_store = INT_REGS;
- else
- wanna_store = STACK_REGS;
- }
-
- /* See if we're forcing the stores to happen now, or deferring. */
- if (regno == -2)
- {
- wanna_store = deferred_stores;
- deferred_stores = 0;
- }
- else
- {
- if (wanna_store == STACK_REGS)
- {
- /* Fall through and just store one stack reg. If we deferred
- it, we'd have to store them all, or remember more info. */
- }
- else
- {
- deferred_stores |= wanna_store;
- return;
- }
- }
-
- if (wanna_store & STACK_REGS)
- {
- CORE_ADDR sp = *(CORE_ADDR *)®isters[REGISTER_BYTE (SP_REGNUM)];
-
- if (regno < 0 || regno == SP_REGNUM)
- {
- if (!register_valid[L0_REGNUM+5]) abort();
- target_xfer_memory (sp,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16*REGISTER_RAW_SIZE (L0_REGNUM), 1);
- }
- else
- {
- if (!register_valid[regno]) abort();
- target_xfer_memory (sp + REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM),
- ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno), 1);
- }
-
- }
-
- if (wanna_store & INT_REGS)
- {
- if (!register_valid[G1_REGNUM]) abort();
-
- memcpy (&inferior_registers.r_g1, ®isters[REGISTER_BYTE (G1_REGNUM)],
- 15 * REGISTER_RAW_SIZE (G1_REGNUM));
-
- inferior_registers.r_ps =
- *(int *)®isters[REGISTER_BYTE (PS_REGNUM)];
- inferior_registers.r_pc =
- *(int *)®isters[REGISTER_BYTE (PC_REGNUM)];
- inferior_registers.r_npc =
- *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)];
- inferior_registers.r_y =
- *(int *)®isters[REGISTER_BYTE (Y_REGNUM)];
-
- if (0 != ptrace (PTRACE_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers, 0))
- perror("ptrace_setregs");
- }
-
- if (wanna_store & FP_REGS)
- {
- if (!register_valid[FP0_REGNUM+9]) abort();
- /* Initialize inferior_fp_registers members that gdb doesn't set
- by reading them from the inferior. */
- if (0 !=
- ptrace (PTRACE_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0))
- perror("ptrace_getfpregs");
- memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fpu_fr);
-
-/* memcpy (&inferior_fp_registers.Fpu_fsr,
- ®isters[REGISTER_BYTE (FPS_REGNUM)], sizeof (FPU_FSR_TYPE));
-****/
- if (0 !=
- ptrace (PTRACE_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0))
- perror("ptrace_setfpregs");
- }
-#endif
-}
-
-
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- unsigned int ignore; /* reg addr, unused in this version */
-{
-#if 0
- if (which == 0) {
-
- /* Integer registers */
-
-#define gregs ((struct regs *)core_reg_sect)
- /* G0 *always* holds 0. */
- *(int *)®isters[REGISTER_BYTE (0)] = 0;
-
- /* The globals and output registers. */
- memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1,
- 15 * REGISTER_RAW_SIZE (G1_REGNUM));
- *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
- *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
- *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
- *(int *)®isters[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;
-
- /* My best guess at where to get the locals and input
- registers is exactly where they usually are, right above
- the stack pointer. If the core dump was caused by a bus error
- from blowing away the stack pointer (as is possible) then this
- won't work, but it's worth the try. */
- {
- int sp;
-
- sp = *(int *)®isters[REGISTER_BYTE (SP_REGNUM)];
- if (0 != target_read_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16 * REGISTER_RAW_SIZE (L0_REGNUM)))
- {
- /* fprintf so user can still use gdb */
- fprintf (stderr,
- "Couldn't read input and local registers from core file\n");
- }
- }
- } else if (which == 2) {
-
- /* Floating point registers */
-
-#define fpuregs ((struct fpu *) core_reg_sect)
- if (core_reg_size >= sizeof (struct fpu))
- {
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fpuregs->fpu_regs,
- sizeof (fpuregs->fpu_regs));
- memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr,
- sizeof (FPU_FSR_TYPE));
- }
- else
- fprintf (stderr, "Couldn't read float regs from core file\n");
- }
-#endif
-}
-
-/* Wait for child to do something. Return pid of child, or -1 in case
- of error; store status through argument pointer STATUS. */
-
-/* FIXME: Not sparc-specific. Should be using lynx-nat.c instead; the
- child_wait's are identical. */
-
-int
-child_wait (pid, status)
- int pid;
- struct target_waitstatus *ourstatus;
-{
- int save_errno;
- int thread;
-
- while (1)
- {
- int sig;
-
- if (attach_flag)
- set_sigint_trap(); /* Causes SIGINT to be passed on to the
- attached process. */
- pid = wait (status);
- save_errno = errno;
-
- if (attach_flag)
- 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));
- /* 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?!? */
- continue;
-
-/* thread = WIFTID (*status);*/
- thread = *status >> 16;
-
- /* Initial thread value can only be acquired via wait, so we have to
- resort to this hack. */
-
- if (TIDGET (inferior_pid) == 0)
- {
- inferior_pid = BUILDPID (inferior_pid, thread);
- add_thread (inferior_pid);
- }
-
- pid = BUILDPID (pid, thread);
-
- store_waitstatus (ourstatus, status);
-
- return pid;
- }
-}
projects / deliverable / binutils-gdb.git / commitdiff
