From 448628fe90adf4687346f67b63041aa03ec436ab Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Wed, 31 May 2000 20:26:46 +0000 Subject: [PATCH] Add support for FreeBSD/Alpha. * alphabsd-nat.c, config/alpha/fbsd.mh, config/alpha/fbsd.mt, config/alpha/nm-fbsd.h, config/alpha/tm-fbsd.h, config/alpha/xm-fbsd.h: New files. --- gdb/ChangeLog | 7 ++ gdb/alphabsd-nat.c | 187 +++++++++++++++++++++++++++++++++++++ gdb/config/alpha/fbsd.mh | 6 ++ gdb/config/alpha/fbsd.mt | 3 + gdb/config/alpha/nm-fbsd.h | 41 ++++++++ gdb/config/alpha/tm-fbsd.h | 32 +++++++ gdb/config/alpha/xm-fbsd.h | 26 ++++++ 7 files changed, 302 insertions(+) create mode 100644 gdb/alphabsd-nat.c create mode 100644 gdb/config/alpha/fbsd.mh create mode 100644 gdb/config/alpha/fbsd.mt create mode 100644 gdb/config/alpha/nm-fbsd.h create mode 100644 gdb/config/alpha/tm-fbsd.h create mode 100644 gdb/config/alpha/xm-fbsd.h diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9dac3416e5..78e65206c7 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,10 @@ +2000-05-31 Mark Kettenis + + Add support for FreeBSD/Alpha. + * alphabsd-nat.c, config/alpha/fbsd.mh, config/alpha/fbsd.mt, + config/alpha/nm-fbsd.h, config/alpha/tm-fbsd.h, + config/alpha/xm-fbsd.h: New files. + 2000-05-31 Pierre Muller * MAINTAINERS: Add myself to "Write After Approval" list. diff --git a/gdb/alphabsd-nat.c b/gdb/alphabsd-nat.c new file mode 100644 index 0000000000..f6b607d485 --- /dev/null +++ b/gdb/alphabsd-nat.c @@ -0,0 +1,187 @@ +/* Native-dependent code for Alpha BSD's. + Copyright (C) 2000 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "inferior.h" + +#include +#include +#include + +#ifdef HAVE_SYS_PROCFS_H +#include +#endif + +#ifndef HAVE_GREGSET_T +typedef struct reg gregset_t; +#endif + +#ifndef HAVE_FPREGSET_T +typedef struct fpreg fpregset_t; +#endif + +#include "gregset.h" + +/* Number of general-purpose registers. */ +#define NUM_GREGS 32 + +/* Number of floating point registers. */ +#define NUM_FPREGS 31 + + +/* Transfering the registers between GDB, inferiors and core files. */ + +/* Fill GDB's register array with the genereal-purpose register values + in *GREGSETP. */ + +void +supply_gregset (gregset_t *gregsetp) +{ + int i; + + for (i = 0; i < NUM_GREGS; i++) + { + if (CANNOT_FETCH_REGISTER (i)) + supply_register (i, NULL); + else + supply_register (i, (char *) &gregsetp->r_regs[i]); + } + + /* The PC travels in the R_ZERO slot. */ + supply_register (PC_REGNUM, (char *) &gregsetp->r_regs[R_ZERO]); +} + +/* Fill register REGNO (if it is a general-purpose register) in + *GREGSETPS with the value in GDB's register array. If REGNO is -1, + do this for all registers. */ + +void +fill_gregset (gregset_t *gregsetp, int regno) +{ + int i; + + for (i = 0; i < NUM_GREGS; i++) + if ((regno == -1 || regno == i) && ! CANNOT_STORE_REGISTER (i)) + memcpy (&gregsetp->r_regs[i], ®isters[REGISTER_BYTE (i)], + REGISTER_RAW_SIZE (i)); + + /* The PC travels in the R_ZERO slot. */ + if (regno == -1 || regno == PC_REGNUM) + memcpy (&gregsetp->r_regs[R_ZERO], ®isters[REGISTER_BYTE (PC_REGNUM)], + REGISTER_RAW_SIZE (PC_REGNUM)); +} + +/* Fill GDB's register array with the floating-point register values + in *FPREGSETP. */ + +void +supply_fpregset (fpregset_t *fpregsetp) +{ + int i; + + for (i = FP0_REGNUM; i < FP0_REGNUM + NUM_FPREGS; i++) + { + if (CANNOT_FETCH_REGISTER (i)) + supply_register (i, NULL); + else + supply_register (i, (char *) &fpregsetp->fpr_regs[i]); + } + + supply_register (FPCR_REGNUM, (char *) &fpregsetp->fpr_cr); +} + +/* Fill register REGNO (if it is a floating-point register) in + *FPREGSETP with the value in GDB's register array. If REGNO is -1, + do this for all registers. */ + +void +fill_fpregset (fpregset_t *fpregsetp, int regno) +{ + int i; + + for (i = FP0_REGNUM; i < FP0_REGNUM + NUM_FPREGS; i++) + if ((regno == -1 || regno == i) && ! CANNOT_STORE_REGISTER (i)) + memcpy (&fpregsetp->fpr_regs[i - FP0_REGNUM], + ®isters[REGISTER_BYTE (i)], REGISTER_RAW_SIZE (i)); + + if (regno == -1 || regno == FPCR_REGNUM) + memcpy (&fpregsetp->fpr_cr, ®isters[REGISTER_BYTE (FPCR_REGNUM)], + REGISTER_RAW_SIZE (FPCR_REGNUM)); +} + +/* Fetch register REGNO from the inferior. If REGNO is -1, do this + for all registers (including the floating point registers). */ + +void +fetch_inferior_registers (int regno) +{ + gregset_t gregs; + + if (ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &gregs, 0) == -1) + perror_with_name ("Couldn't get registers"); + + supply_gregset (&gregs); + + if (regno == -1 || regno >= FP0_REGNUM) + { + fpregset_t fpregs; + + if (ptrace (PT_GETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) + perror_with_name ("Couldn't get floating point status"); + + supply_fpregset (&fpregs); + } + + /* Reset virtual frame pointer. */ + supply_register (FP_REGNUM, NULL); +} + +/* Store register REGNO back into the inferior. If REGNO is -1, do + this for all registers (including the floating point registers). */ + +void +store_inferior_registers (int regno) +{ + gregset_t gregs; + + if (ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &gregs, 0) == -1) + perror_with_name ("Couldn't get registers"); + + fill_gregset (&gregs, regno); + + if (ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &gregs, 0) == -1) + perror_with_name ("Couldn't write registers"); + + if (regno == -1 || regno >= FP0_REGNUM) + { + fpregset_t fpregs; + + if (ptrace (PT_GETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) + perror_with_name ("Couldn't get floating point status"); + + fill_fpregset (&fpregs, regno); + + if (ptrace (PT_SETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) + perror_with_name ("Couldn't write floating point status"); + } +} diff --git a/gdb/config/alpha/fbsd.mh b/gdb/config/alpha/fbsd.mh new file mode 100644 index 0000000000..9c2b5e580d --- /dev/null +++ b/gdb/config/alpha/fbsd.mh @@ -0,0 +1,6 @@ +# Host: FreeBSD/Alpha +XDEPFILES= ser-tcp.o +NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o \ + corelow.o core-regset.o alphabsd-nat.o +XM_FILE= xm-fbsd.h +NAT_FILE= nm-fbsd.h diff --git a/gdb/config/alpha/fbsd.mt b/gdb/config/alpha/fbsd.mt new file mode 100644 index 0000000000..6d33977c07 --- /dev/null +++ b/gdb/config/alpha/fbsd.mt @@ -0,0 +1,3 @@ +# Target: FreeBSD/Alpha +TDEPFILES= alpha-tdep.o +TM_FILE= tm-fbsd.h diff --git a/gdb/config/alpha/nm-fbsd.h b/gdb/config/alpha/nm-fbsd.h new file mode 100644 index 0000000000..cb72a35956 --- /dev/null +++ b/gdb/config/alpha/nm-fbsd.h @@ -0,0 +1,41 @@ +/* Native-dependent definitions for FreeBSD/Alpha. + Copyright (C) 1986, 87, 89, 92, 96, 2000 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef NM_FBSD_H +#define NM_FBSD_H + +/* Type of the third argument to the `ptrace' system call. */ +#define PTRACE_ARG3_TYPE caddr_t + +/* Override copies of {fetch,store}_inferior_registers in `infptrace.c'. */ +#define FETCH_INFERIOR_REGISTERS + +/* We can attach and detach. */ +#define ATTACH_DETACH + + +/* Shared library support. */ + +#define SVR4_SHARED_LIBS + +#include "solib.h" /* Support for shared libraries. */ +#include "elf/common.h" /* Additional ELF shared library info. */ + +#endif /* NM_FBSD_H */ diff --git a/gdb/config/alpha/tm-fbsd.h b/gdb/config/alpha/tm-fbsd.h new file mode 100644 index 0000000000..73086e463e --- /dev/null +++ b/gdb/config/alpha/tm-fbsd.h @@ -0,0 +1,32 @@ +/* Target-dependent definitions for FreeBSD/Alpha. + Copyright (C) 2000 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef TM_FBSD_H +#define TM_FBSD_H + +#include "alpha/tm-alpha.h" + +/* Number of traps that happen between exec'ing the shell to run an + inferior, and when we finally get to the inferior code. The + default is right for FreeBSD. */ + +#undef START_INFERIOR_TRAPS_EXPECTED + +#endif /* TM_FBSD_H */ diff --git a/gdb/config/alpha/xm-fbsd.h b/gdb/config/alpha/xm-fbsd.h new file mode 100644 index 0000000000..f519512f82 --- /dev/null +++ b/gdb/config/alpha/xm-fbsd.h @@ -0,0 +1,26 @@ +/* Host-dependent definitions for FreeBSD/i386. + Copyright (C) 2000 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef XM_FBSD_H +#define XM_FBSD_H + +#define HOST_BYTE_ORDER LITTLE_ENDIAN + +#endif /* XM_FBSD_H */