From 59144a812481808f86d7525f5ad23934c5ab4a96 Mon Sep 17 00:00:00 2001 From: Jim Kingdon Date: Sat, 26 Mar 1994 00:19:35 +0000 Subject: [PATCH] * config/i386/ptx.mh (XDEPFILES): Add coredep.o. Delete infptrace.o. * symm-nat.c (child_wait, _initialize_symm_nat, kill_inferior): Supply alternate version if ATTACH_DETACH is not defined. * ptx4-nat.c, config/i386/{nm-ptx4.h, ptx4.mh, ptx.mt, ptx4.mt, tm-ptx.h, tm-ptx4.h, xm-ptx.h, xm-ptx4.h}: New files. * configure.in: Recognize i[34]86-sequent-sysv4* host. --- gdb/ChangeLog | 12 ++ gdb/config/i386/.Sanitize | 8 ++ gdb/config/i386/nm-ptx4.h | 58 ++++++++++ gdb/config/i386/ptx.mh | 4 +- gdb/config/i386/ptx.mt | 3 + gdb/config/i386/ptx4.mh | 7 ++ gdb/config/i386/ptx4.mt | 3 + gdb/config/i386/tm-ptx.h | 232 ++++++++++++++++++++++++++++++++++++++ gdb/config/i386/tm-ptx4.h | 24 ++++ gdb/config/i386/xm-ptx.h | 48 ++++++++ gdb/config/i386/xm-ptx4.h | 25 ++++ gdb/configure.in | 5 +- gdb/ptx4-nat.c | 209 ++++++++++++++++++++++++++++++++++ gdb/symm-nat.c | 50 +++++++- 14 files changed, 680 insertions(+), 8 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index dfc305d8f3..4c8419da94 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,15 @@ +Fri Mar 25 12:40:41 1994 Jim Kingdon (kingdon@lioth.cygnus.com) + + * valprint.c (val_print): Remove inaccurate comment about what + types can be stub types. + + * config/i386/ptx.mh (XDEPFILES): Add coredep.o. Delete infptrace.o. + * symm-nat.c (child_wait, _initialize_symm_nat, kill_inferior): + Supply alternate version if ATTACH_DETACH is not defined. + * ptx4-nat.c, config/i386/{nm-ptx4.h, ptx4.mh, ptx.mt, ptx4.mt, + tm-ptx.h, tm-ptx4.h, xm-ptx.h, xm-ptx4.h}: New files. + * configure.in: Recognize i[34]86-sequent-sysv4* host. + Fri Mar 25 10:14:03 1994 Jeffrey A. Law (law@snake.cs.utah.edu) * hppa-tdep.c (skip_prologue): Return "pc" not zero diff --git a/gdb/config/i386/.Sanitize b/gdb/config/i386/.Sanitize index 647400c8fd..5ce8e5ea98 100644 --- a/gdb/config/i386/.Sanitize +++ b/gdb/config/i386/.Sanitize @@ -58,9 +58,13 @@ nm-i386sco4.h nm-i386v.h nm-i386v4.h nm-linux.h +nm-ptx4.h nm-sun386.h nm-symmetry.h ptx.mh +ptx.mt +ptx4.mh +ptx4.mt sun386.mh sun386.mt symmetry.mh @@ -75,6 +79,8 @@ tm-i386os9k.h tm-i386v.h tm-i386v4.h tm-linux.h +tm-ptx.h +tm-ptx4.h tm-sun386.h tm-symmetry.h xm-go32.h @@ -89,6 +95,8 @@ xm-i386v.h xm-i386v32.h xm-i386v4.h xm-linux.h +xm-ptx.h +xm-ptx4.h xm-sun386.h xm-symmetry.h diff --git a/gdb/config/i386/nm-ptx4.h b/gdb/config/i386/nm-ptx4.h index e69de29bb2..654f9b4d54 100644 --- a/gdb/config/i386/nm-ptx4.h +++ b/gdb/config/i386/nm-ptx4.h @@ -0,0 +1,58 @@ +/* Definitions to make GDB run on a Sequent Symmetry under ptx + with Weitek 1167 and i387 support. + Copyright 1986, 1987, 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 "nm-sysv4.h" + +#undef USE_PROC_FS + +#include "nm-symmetry.h" + +#define PTRACE_READ_REGS(pid,regaddr) mptrace (XPT_RREGS, (pid), (regaddr), 0) +#define PTRACE_WRITE_REGS(pid,regaddr) \ + mptrace (XPT_WREGS, (pid), (regaddr), 0) + +/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */ + +#define FETCH_INFERIOR_REGISTERS + +#define CHILD_WAIT +struct target_waitstatus; +extern int child_wait PARAMS ((int, struct target_waitstatus *)); + +/* + * ptx does attach as of ptx version 2.1. Prior to that, the interface + * exists but does not work. + * + * FIXME: Using attach/detach requires using the ptx MPDEBUGGER + * interface. There are still problems with that, so for now don't + * enable attach/detach. If you turn it on anyway, it will mostly + * work, but has a number of bugs. -fubar, 2/94. + */ +/*#define ATTACH_DETACH 1*/ +#undef ATTACH_DETACH +#define PTRACE_ATTACH XPT_DEBUG +#define PTRACE_DETACH XPT_UNDEBUG +/* + * The following drivel is needed because there are two ptrace-ish + * calls on ptx: ptrace() and mptrace(), each of which does about half + * of the ptrace functions. + */ +#define PTRACE_ATTACH_CALL(pid) ptx_do_attach(pid) +#define PTRACE_DETACH_CALL(pid, signo) ptx_do_detach(pid, signo) diff --git a/gdb/config/i386/ptx.mh b/gdb/config/i386/ptx.mh index cd2bedda92..20e17d8574 100644 --- a/gdb/config/i386/ptx.mh +++ b/gdb/config/i386/ptx.mh @@ -1,6 +1,6 @@ # Host: Sequent Symmetry running ptx 1.3, with Weitek 1167 or i387. -XDEPFILES= infptrace.o inftarg.o fork-child.o symm-nat.o corelow.o -XM_FILE= xm-symmetry.h +XDEPFILES= inftarg.o fork-child.o symm-nat.o corelow.o coredep.o +XM_FILE= xm-ptx.h NAT_FILE= nm-symmetry.h XM_CLIBS= -lPW -lseq REGEX=regex.o diff --git a/gdb/config/i386/ptx.mt b/gdb/config/i386/ptx.mt index e69de29bb2..cfa8c6e48e 100644 --- a/gdb/config/i386/ptx.mt +++ b/gdb/config/i386/ptx.mt @@ -0,0 +1,3 @@ +# Target: Sequent Symmetry running ptx 2.0, with Weitek 1167 or i387. +TDEPFILES= exec.o symm-tdep.o i386-pinsn.o i387-tdep.o i386-tdep.o +TM_FILE= tm-ptx.h diff --git a/gdb/config/i386/ptx4.mh b/gdb/config/i386/ptx4.mh index e69de29bb2..dd06a9c6b6 100644 --- a/gdb/config/i386/ptx4.mh +++ b/gdb/config/i386/ptx4.mh @@ -0,0 +1,7 @@ +# Host: Sequent Symmetry running ptx 1.3, with Weitek 1167 or i387. +XDEPFILES= inftarg.o fork-child.o symm-nat.o corelow.o coredep.o solib.o core-svr4.o +XM_FILE= xm-ptx4.h +NAT_FILE= nm-ptx4.h +XM_CLIBS= -lseq +REGEX=regex.o +REGEX1=regex.o diff --git a/gdb/config/i386/ptx4.mt b/gdb/config/i386/ptx4.mt index e69de29bb2..cc1600de29 100644 --- a/gdb/config/i386/ptx4.mt +++ b/gdb/config/i386/ptx4.mt @@ -0,0 +1,3 @@ +# Target: Sequent Symmetry running ptx 4.0, with Weitek 1167 or i387. +TDEPFILES= exec.o symm-tdep.o i386-pinsn.o i387-tdep.o i386-tdep.o +TM_FILE= tm-ptx4.h diff --git a/gdb/config/i386/tm-ptx.h b/gdb/config/i386/tm-ptx.h index e69de29bb2..6b556cd8ab 100644 --- a/gdb/config/i386/tm-ptx.h +++ b/gdb/config/i386/tm-ptx.h @@ -0,0 +1,232 @@ +/* Target machine definitions for GDB on a Sequent Symmetry under ptx + with Weitek 1167 and i387 support. + Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. + Symmetry version by Jay Vosburgh (fubar@sequent.com). + +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. */ + +/* I don't know if this will work for cross-debugging, even if you do get + a copy of the right include file. */ +#include + +/* +#define SDB_REG_TO_REGNUM(value) ptx_coff_regno_to_gdb(value) +extern int ptx_coff_regno_to_gdb(); +*/ + +#define START_INFERIOR_TRAPS_EXPECTED 2 + +/* Amount PC must be decremented by after a breakpoint. + This is often the number of bytes in BREAKPOINT + but not always. */ + +#define DECR_PC_AFTER_BREAK 0 + +#ifdef SEQUENT_PTX4 +#include "i386/tm-i386v4.h" +#else /* !SEQUENT_PTX4 */ +#include "i386/tm-i386v.h" +#endif + +#if 0 + --- this code can't be used unless we know we are running native, + since it uses host specific ptrace calls. +/* code for 80387 fpu. Functions are from i386-dep.c, copied into + * symm-dep.c. + */ +#define FLOAT_INFO { i386_float_info(); } +#endif + +/* Number of machine registers */ +#undef NUM_REGS +#define NUM_REGS 49 + +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ + +#undef REGISTER_NAMES +#define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \ + "esp", "ebp", "esi", "edi", \ + "eip", "eflags", "st0", "st1", "st2", \ + "st3", "st4", "st5", "st6", "st7", \ + "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", \ + "fp8", "fp9", "fp10", "fp11", "fp12", \ + "fp13", "fp14", "fp15", "fp16", "fp17", \ + "fp18", "fp19", "fp20", "fp21", "fp22", \ + "fp23", "fp24", "fp25", "fp26", "fp27", \ + "fp28", "fp29", "fp30", "fp31" } + +/* Register numbers of various important registers. + Note that some of these values are "real" register numbers, + and correspond to the general registers of the machine, + and some are "phony" register numbers which are too large + to be actual register numbers as far as the user is concerned + but do serve to get the desired values when passed to read_register. */ + +#define EAX_REGNUM 0 +#define ECX_REGNUM 1 +#define EDX_REGNUM 2 +#define EBX_REGNUM 3 + +#define ESP_REGNUM 4 +#define EBP_REGNUM 5 + +#define ESI_REGNUM 6 +#define EDI_REGNUM 7 + +#define EIP_REGNUM 8 +#define EFLAGS_REGNUM 9 + +#define ST0_REGNUM 10 +#define ST1_REGNUM 11 +#define ST2_REGNUM 12 +#define ST3_REGNUM 13 + +#define ST4_REGNUM 14 +#define ST5_REGNUM 15 +#define ST6_REGNUM 16 +#define ST7_REGNUM 17 + +#define FP1_REGNUM 18 /* first 1167 register */ +/* Get %fp2 - %fp31 by addition, since they are contiguous */ + +#undef SP_REGNUM +#define SP_REGNUM ESP_REGNUM /* Contains address of top of stack */ +#undef FP_REGNUM +#define FP_REGNUM EBP_REGNUM /* Contains address of executing stack frame */ +#undef PC_REGNUM +#define PC_REGNUM EIP_REGNUM /* Contains program counter */ +#undef PS_REGNUM +#define PS_REGNUM EFLAGS_REGNUM /* Contains processor status */ + +/* + * For ptx, this is a little bit bizarre, since the register block + * is below the u area in memory. This means that blockend here ends + * up being negative (for the call from coredep.c) since the value in + * u.u_ar0 will be less than KERNEL_U_ADDR (and coredep.c passes us + * u.u_ar0 - KERNEL_U_ADDR in blockend). Since we also define + * FETCH_INFERIOR_REGISTERS (and supply our own functions for that), + * the core file case will be the only use of this function. + */ + +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ (addr) = ptx_register_u_addr((blockend), (regno)); } + +extern int +ptx_register_u_addr PARAMS ((int, int)); + + +/* Total amount of space needed to store our copies of the machine's + register state, the array `registers'. */ +/* 10 i386 registers, 8 i387 registers, and 31 Weitek 1167 registers */ +#undef REGISTER_BYTES +#define REGISTER_BYTES ((10 * 4) + (8 * 10) + (31 * 4)) + +/* Index within `registers' of the first byte of the space for + register N. */ + +#undef REGISTER_BYTE +#define REGISTER_BYTE(N) \ +((N < ST0_REGNUM) ? (N * 4) : \ + (N < FP1_REGNUM) ? (40 + ((N - ST0_REGNUM) * 10)) : \ + (40 + 80 + ((N - FP1_REGNUM) * 4))) + +/* Number of bytes of storage in the actual machine representation + * for register N. All registers are 4 bytes, except 387 st(0) - st(7), + * which are 80 bits each. + */ + +#undef REGISTER_RAW_SIZE +#define REGISTER_RAW_SIZE(N) \ +((N < ST0_REGNUM) ? 4 : \ + (N < FP1_REGNUM) ? 10 : \ + 4) + +/* Largest value REGISTER_RAW_SIZE can have. */ + +#undef MAX_REGISTER_RAW_SIZE +#define MAX_REGISTER_RAW_SIZE 10 + +/* Nonzero if register N requires conversion + from raw format to virtual format. */ + +#undef REGISTER_CONVERTIBLE +#define REGISTER_CONVERTIBLE(N) \ +((N < ST0_REGNUM) ? 0 : \ + (N < FP1_REGNUM) ? 1 : \ + 0) + +/* Convert data from raw format for register REGNUM + to virtual format for register REGNUM. */ +extern const struct floatformat floatformat_i387_ext; /* from floatformat.h */ + +#undef REGISTER_CONVERT_TO_VIRTUAL +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ +((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \ + (REGNUM < FP1_REGNUM) ? (void)floatformat_to_double(&floatformat_i387_ext, \ + (FROM),(TO)) : \ + (void)memcpy ((TO), (FROM), 4)) + +/* Convert data from virtual format for register REGNUM + to raw format for register REGNUM. */ + +#undef REGISTER_CONVERT_TO_RAW +#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ +((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \ + (REGNUM < FP1_REGNUM) ? (void)floatformat_from_double(&floatformat_i387_ext, \ + (FROM),(TO)) : \ + (void)memcpy ((TO), (FROM), 4)) + +/* Return the GDB type object for the "standard" data type + of data in register N. */ +/* + * Note: the 1167 registers (the last line, builtin_type_float) are + * generally used in pairs, with each pair being treated as a double. + * It it also possible to use them singly as floats. I'm not sure how + * in gdb to treat the register pair pseudo-doubles. -fubar + */ +#undef REGISTER_VIRTUAL_TYPE +#define REGISTER_VIRTUAL_TYPE(N) \ +((N < ST0_REGNUM) ? builtin_type_int : \ + (N < FP1_REGNUM) ? builtin_type_double : \ + builtin_type_float) + +/* Extract from an array REGBUF containing the (raw) register state + a function return value of type TYPE, and copy that, in virtual format, + into VALBUF. */ + +#undef EXTRACT_RETURN_VALUE +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + symmetry_extract_return_value(TYPE, REGBUF, VALBUF) + + +/* + * Removed extra PUSH_DUMMY_FRAME, et al: it was identical to the + * i386-tdep.c version. + */ + +extern void +print_387_control_word PARAMS ((unsigned int)); + +extern void +print_387_status_word PARAMS ((unsigned int)); + +/* +#undef FRAME_FIND_SAVED_REGS +#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ +{ ptx_frame_find_saved_regs((frame_info), &(frame_saved_regs)); } +*/ diff --git a/gdb/config/i386/tm-ptx4.h b/gdb/config/i386/tm-ptx4.h index e69de29bb2..d719b4f7a8 100644 --- a/gdb/config/i386/tm-ptx4.h +++ b/gdb/config/i386/tm-ptx4.h @@ -0,0 +1,24 @@ +/* Target machine definitions for GDB on a Sequent Symmetry under ptx + with Weitek 1167 and i387 support. + Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. + Symmetry version by Jay Vosburgh (fubar@sequent.com). + +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. */ + +#define SEQUENT_PTX4 + +#include "tm-ptx.h" diff --git a/gdb/config/i386/xm-ptx.h b/gdb/config/i386/xm-ptx.h index e69de29bb2..fe6809856b 100644 --- a/gdb/config/i386/xm-ptx.h +++ b/gdb/config/i386/xm-ptx.h @@ -0,0 +1,48 @@ +/* Definitions to make GDB run on a Sequent Symmetry under ptx, with + Weitek 1167 and i387 support. Copyright 1986, 1987, 1989, 1992, + 1993 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. */ + +/* Symmetry version by Jay Vosburgh (fubar@sequent.com) */ + +#ifdef _SEQUENT_PTX4_ +#include "xm-sysv4.h" +#endif /* _SEQUENT_PTX4_ */ + +/* This machine doesn't have the siginterrupt call. */ +#define NO_SIGINTERRUPT + +#define HAVE_WAIT_STRUCT + +#define HAVE_MMAP + +#undef HAVE_TERMIO +#define HAVE_TERMIOS +#define USG + +#define MEM_FNS_DECLARED + +#define NEED_POSIX_SETPGID + +#define USE_O_NOCTTY + +#define HOST_BYTE_ORDER LITTLE_ENDIAN + +/* We must fetch all the regs before storing, since we store all at once. */ + +#define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES) diff --git a/gdb/config/i386/xm-ptx4.h b/gdb/config/i386/xm-ptx4.h index e69de29bb2..87ebf1a3e3 100644 --- a/gdb/config/i386/xm-ptx4.h +++ b/gdb/config/i386/xm-ptx4.h @@ -0,0 +1,25 @@ +/* Definitions to make GDB run on a Sequent Symmetry under ptx, with + Weitek 1167 and i387 support. Copyright 1986, 1987, 1989, 1992, + 1993 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. */ + +/* Symmetry version by Jay Vosburgh (fubar@sequent.com) */ + +#include "xm-sysv4.h" + +#include "xm-ptx.h" diff --git a/gdb/configure.in b/gdb/configure.in index 74dfc9c3d9..07b5cf363b 100644 --- a/gdb/configure.in +++ b/gdb/configure.in @@ -38,6 +38,7 @@ hppa*-*-osf*) gdb_host=hppabsd ;; i[34]86-ncr-*) gdb_host=ncr3000 ;; i[34]86-sequent-bsd*) gdb_host=symmetry ;; #dynix +i[34]86-sequent-sysv4*) gdb_host=ptx4 ;; i[34]86-sequent-sysv*) gdb_host=ptx ;; i[34]86-*-aix*) gdb_host=i386aix ;; @@ -191,7 +192,9 @@ hppa*-*-hpux*) gdb_target=hppahpux ;; hppa*-*-hiux*) gdb_target=hppahpux ;; hppa*-*-osf*) gdb_target=hppaosf ;; -i[34]86-sequent-*) gdb_target=symmetry ;; +i[34]86-sequent-bsd*) gdb_target=symmetry ;; +i[34]86-sequent-sysv4*) gdb_target=ptx4 ;; +i[34]86-sequent-sysv*) gdb_target=ptx ;; i[34]86-ncr-*) gdb_target=ncr3000 ;; i[34]86-*-aout*) gdb_target=i386aout ;; diff --git a/gdb/ptx4-nat.c b/gdb/ptx4-nat.c index e69de29bb2..fa6b80f974 100644 --- a/gdb/ptx4-nat.c +++ b/gdb/ptx4-nat.c @@ -0,0 +1,209 @@ +/* Native-dependent code for ptx 4.0 + Copyright 1988, 1989, 1991, 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 "gdbcore.h" +#include +#include +#include +#include + +/* Given a pointer to a general register set in /proc format (gregset_t *), + unpack the register contents and supply them as gdb's idea of the current + register values. */ + +void +supply_gregset (gregsetp) + gregset_t *gregsetp; +{ + supply_register(EAX_REGNUM, (char *)&(*gregsetp)[EAX]); + supply_register(EDX_REGNUM, (char *)&(*gregsetp)[EDX]); + supply_register(ECX_REGNUM, (char *)&(*gregsetp)[ECX]); + supply_register(EBX_REGNUM, (char *)&(*gregsetp)[EBX]); + supply_register(ESI_REGNUM, (char *)&(*gregsetp)[ESI]); + supply_register(EDI_REGNUM, (char *)&(*gregsetp)[EDI]); + supply_register(ESP_REGNUM, (char *)&(*gregsetp)[UESP]); + supply_register(EBP_REGNUM, (char *)&(*gregsetp)[EBP]); + supply_register(EIP_REGNUM, (char *)&(*gregsetp)[EIP]); + supply_register(EFLAGS_REGNUM, (char *)&(*gregsetp)[EFL]); +} + +void +fill_gregset (gregsetp, regno) + gregset_t *gregsetp; + int regno; +{ + int regi; + extern char registers[]; + + for (regi = 0 ; regi < NUM_REGS ; regi++) + { + if ((regno == -1) || (regno == regi)) + { + (*gregsetp)[regi] = *(greg_t *)®isters[REGISTER_BYTE (regi)]; + } + } +} + +#if defined (FP0_REGNUM) + +/* Given a pointer to a floating point register set in /proc format + (fpregset_t *), unpack the register contents and supply them as gdb's + idea of the current floating point register values. */ + +void +supply_fpregset (fpregsetp) + fpregset_t *fpregsetp; +{ + supply_fpu_registers((struct fpusave *)&fpregsetp->fp_reg_set); + supply_fpa_registers((struct fpasave *)&fpregsetp->f_wregs); +} + +/* Given a pointer to a floating point register set in /proc format + (fpregset_t *), update the register specified by REGNO from gdb's idea + of the current floating point register set. If REGNO is -1, update + them all. */ + +void +fill_fpregset (fpregsetp, regno) + fpregset_t *fpregsetp; + int regno; +{ + int regi; + char *to; + char *from; + extern char registers[]; + + /* FIXME: see m68k-tdep.c for an example, for the m68k. */ +} + +#endif /* defined (FP0_REGNUM) */ + +/* + * This doesn't quite do the same thing as the procfs.c version, but give + * it the same name so we don't have to put an ifdef in solib.c. + */ +/* this could use elf_interpreter() from elfread.c */ +int +proc_iterate_over_mappings(func) + int (*func) PARAMS ((int, CORE_ADDR)); +{ + vaddr_t curseg, memptr; + pt_vseg_t pv; + int rv, cmperr; + sec_ptr interp_sec; + char *interp_content; + int interp_fd, funcstat; + unsigned int size; + char buf1[NBPG], buf2[NBPG]; + + /* + * The following is really vile. We can get the name of the + * shared library from the exec_bfd, and we can get a list of + * each virtual memory segment, but there is no simple way to + * find the mapped segment from the shared library (ala + * procfs's PIOCOPENMEM). As a pretty nasty kludge, we + * compare the virtual memory segment to the contents of the + * .interp file. If they match, we assume that we've got the + * right one. + */ + + /* + * TODO: for attach, use XPT_OPENT to get the executable, in + * case we're attached without knowning the executable's + * filename. + */ + +#ifdef VERBOSE_DEBUG + printf("proc_iter\n"); +#endif + interp_sec = bfd_get_section_by_name(exec_bfd, ".interp"); + if (!interp_sec) { + return 0; + } + + size = bfd_section_size(exec_bfd, interp_sec); + interp_content = alloca(size); + if (0 == bfd_get_section_contents(exec_bfd, interp_sec, + interp_content, (file_ptr)0, size)) { + return 0; + } + +#ifdef VERBOSE_DEBUG + printf("proc_iter: \"%s\"\n", interp_content); +#endif + interp_fd = open(interp_content, O_RDONLY, 0); + if (-1 == interp_fd) { + return 0; + } + + curseg = 0; + while (1) { + rv = ptrace(PT_NEXT_VSEG, inferior_pid, &pv, curseg); +#ifdef VERBOSE_DEBUG + printf("PT_NEXT_VSEG: rv %d errno %d\n", rv, errno); +#endif + if (-1 == rv) + break; + if (0 == rv) + break; +#ifdef VERBOSE_DEBUG + printf("pv.pv_start 0x%x pv_size 0x%x pv_prot 0x%x\n", + pv.pv_start, pv.pv_size, pv.pv_prot); +#endif + curseg = pv.pv_start + pv.pv_size; + + rv = lseek(interp_fd, 0, SEEK_SET); + if (-1 == rv) { + perror("lseek"); + close(interp_fd); + return 0; + } + for (memptr = pv.pv_start; memptr < pv.pv_start + pv.pv_size; + memptr += NBPG) { +#ifdef VERBOSE_DEBUG + printf("memptr 0x%x\n", memptr); +#endif + rv = read(interp_fd, buf1, NBPG); + if (-1 == rv) { + perror("read"); + close(interp_fd); + return 0; + } + rv = ptrace(PT_RDATA_PAGE, inferior_pid, buf2, + memptr); + if (-1 == rv) { + perror("ptrace"); + close(interp_fd); + return 0; + } + cmperr = memcmp(buf1, buf2, NBPG); + if (cmperr) + break; + } + if (0 == cmperr) { + /* this is it */ + funcstat = (*func)(interp_fd, pv.pv_start); + break; + } + } + close(interp_fd); + return 0; +} diff --git a/gdb/symm-nat.c b/gdb/symm-nat.c index f910d7dbd2..e63ef97d0d 100644 --- a/gdb/symm-nat.c +++ b/gdb/symm-nat.c @@ -362,7 +362,7 @@ sigchld_handler(signo) sigmask(SIGCONT) | sigmask(SIGWINCH) | sigmask(SIGPWR) | \ sigmask(SIGURG) | sigmask(SIGPOLL) - +#ifdef ATTACH_DETACH /* * Thanks to XPT_MPDEBUGGER, we have to mange child_wait(). */ @@ -514,6 +514,38 @@ child_wait(pid, status) return pid; } +#else /* !ATTACH_DETACH */ +/* + * Simple child_wait() based on inftarg.c child_wait() for use until + * the MPDEBUGGER child_wait() works properly. This will go away when + * that is fixed. + */ +child_wait (pid, ourstatus) + int pid; + struct target_waitstatus *ourstatus; +{ + int save_errno; + int status; + + do { + pid = wait (&status); + save_errno = errno; + + if (pid == -1) + { + if (save_errno == EINTR) + continue; + fprintf (stderr, "Child process unexpectedly missing: %s.\n", + safe_strerror (save_errno)); + ourstatus->kind = TARGET_WAITKIND_SIGNALLED; + ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; + return -1; + } + } while (pid != inferior_pid); /* Some other child died or stopped */ + store_waitstatus (ourstatus, status); + return pid; +} +#endif /* ATTACH_DETACH */ @@ -550,12 +582,18 @@ kill_inferior () { if (inferior_pid == 0) return; - /* - * Don't use PT_KILL, since the child will stop again with a PTS_EXIT. - * Just hit him with SIGKILL (so he stops) and detach. - */ + + /* For MPDEBUGGER, don't use PT_KILL, since the child will stop + again with a PTS_EXIT. Just hit him with SIGKILL (so he stops) + and detach. */ + kill (inferior_pid, SIGKILL); +#ifdef ATTACH_DETACH detach(SIGKILL); +#else /* ATTACH_DETACH */ + ptrace(PT_KILL, inferior_pid, 0, 0); + wait((int *)NULL); +#endif /* ATTACH_DETACH */ target_mourn_inferior (); } @@ -737,6 +775,7 @@ child_xfer_memory (memaddr, myaddr, len, write, target) void _initialize_symm_nat () { +#ifdef ATTACH_DETACH /* * the MPDEBUGGER is necessary for process tree debugging and attach * to work, but it alters the behavior of debugged processes, so other @@ -786,4 +825,5 @@ _initialize_symm_nat () fatal("_initialize_symm_nat(): sigaction(SIGCHLD): %s", safe_strerror(errno)); } +#endif } -- 2.34.1