mirror of
https://sourceware.org/git/binutils-gdb.git
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c765fdb902
defs.h includes utils.h, and utils.h includes exceptions.h. All GDB .c files include defs.h as their first line, so no file other than utils.h needs to include exceptions.h. This commit removes all such inclusions. gdb/ChangeLog: * ada-lang.c: Do not include exceptions.h. * ada-valprint.c: Likewise. * amd64-tdep.c: Likewise. * auto-load.c: Likewise. * block.c: Likewise. * break-catch-throw.c: Likewise. * breakpoint.c: Likewise. * btrace.c: Likewise. * c-lang.c: Likewise. * cli/cli-cmds.c: Likewise. * cli/cli-interp.c: Likewise. * cli/cli-script.c: Likewise. * completer.c: Likewise. * corefile.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-support.c: Likewise. * cp-valprint.c: Likewise. * darwin-nat.c: Likewise. * dwarf2-frame-tailcall.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * event-top.c: Likewise. * f-valprint.c: Likewise. * frame-unwind.c: Likewise. * frame.c: Likewise. * gdbtypes.c: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * guile/scm-auto-load.c: Likewise. * guile/scm-breakpoint.c: Likewise. * guile/scm-cmd.c: Likewise. * guile/scm-frame.c: Likewise. * guile/scm-lazy-string.c: Likewise. * guile/scm-param.c: Likewise. * guile/scm-symbol.c: Likewise. * guile/scm-type.c: Likewise. * hppa-hpux-tdep.c: Likewise. * i386-tdep.c: Likewise. * inf-loop.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * infrun.c: Likewise. * interps.c: Likewise. * interps.h: Likewise. * jit.c: Likewise. * linespec.c: Likewise. * linux-nat.c: Likewise. * linux-thread-db.c: Likewise. * m32r-rom.c: Likewise. * main.c: Likewise. * memory-map.c: Likewise. * mi/mi-cmd-break.c: Likewise. * mi/mi-cmd-stack.c: Likewise. * mi/mi-interp.c: Likewise. * mi/mi-main.c: Likewise. * monitor.c: Likewise. * nto-procfs.c: Likewise. * objc-lang.c: Likewise. * p-valprint.c: Likewise. * parse.c: Likewise. * ppc-linux-tdep.c: Likewise. * printcmd.c: Likewise. * probe.c: Likewise. * python/py-auto-load.c: Likewise. * python/py-breakpoint.c: Likewise. * python/py-cmd.c: Likewise. * python/py-finishbreakpoint.c: Likewise. * python/py-frame.c: Likewise. * python/py-framefilter.c: Likewise. * python/py-function.c: Likewise. * python/py-gdb-readline.c: Likewise. * python/py-inferior.c: Likewise. * python/py-infthread.c: Likewise. * python/py-lazy-string.c: Likewise. * python/py-linetable.c: Likewise. * python/py-param.c: Likewise. * python/py-prettyprint.c: Likewise. * python/py-symbol.c: Likewise. * python/py-type.c: Likewise. * python/py-value.c: Likewise. * python/python-internal.h: Likewise. * python/python.c: Likewise. * record-btrace.c: Likewise. * record-full.c: Likewise. * regcache.c: Likewise. * remote-fileio.c: Likewise. * remote-mips.c: Likewise. * remote.c: Likewise. * rs6000-aix-tdep.c: Likewise. * rs6000-nat.c: Likewise. * skip.c: Likewise. * solib-darwin.c: Likewise. * solib-dsbt.c: Likewise. * solib-frv.c: Likewise. * solib-ia64-hpux.c: Likewise. * solib-spu.c: Likewise. * solib-svr4.c: Likewise. * solib.c: Likewise. * spu-tdep.c: Likewise. * stack.c: Likewise. * stap-probe.c: Likewise. * symfile-mem.c: Likewise. * symmisc.c: Likewise. * target.c: Likewise. * thread.c: Likewise. * top.c: Likewise. * tracepoint.c: Likewise. * tui/tui-interp.c: Likewise. * typeprint.c: Likewise. * utils.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * windows-nat.c: Likewise. * xml-support.c: Likewise.
678 lines
18 KiB
C
678 lines
18 KiB
C
/* IBM RS/6000 native-dependent code for GDB, the GNU debugger.
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Copyright (C) 1986-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "libbfd.h" /* For bfd_default_set_arch_mach (FIXME) */
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#include "bfd.h"
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#include "gdb-stabs.h"
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#include "regcache.h"
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#include "arch-utils.h"
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#include "inf-child.h"
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#include "inf-ptrace.h"
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#include "ppc-tdep.h"
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#include "rs6000-tdep.h"
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#include "rs6000-aix-tdep.h"
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#include "exec.h"
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#include "observer.h"
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#include "xcoffread.h"
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#include <sys/ptrace.h>
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#include <sys/reg.h>
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#include <sys/dir.h>
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#include <sys/user.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <a.out.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include "gdb_bfd.h"
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#include <sys/core.h>
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#define __LDINFO_PTRACE32__ /* for __ld_info32 */
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#define __LDINFO_PTRACE64__ /* for __ld_info64 */
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#include <sys/ldr.h>
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#include <sys/systemcfg.h>
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/* On AIX4.3+, sys/ldr.h provides different versions of struct ld_info for
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debugging 32-bit and 64-bit processes. Define a typedef and macros for
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accessing fields in the appropriate structures. */
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/* In 32-bit compilation mode (which is the only mode from which ptrace()
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works on 4.3), __ld_info32 is #defined as equivalent to ld_info. */
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#if defined (__ld_info32) || defined (__ld_info64)
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# define ARCH3264
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#endif
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/* Return whether the current architecture is 64-bit. */
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#ifndef ARCH3264
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# define ARCH64() 0
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#else
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# define ARCH64() (register_size (target_gdbarch (), 0) == 8)
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#endif
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static target_xfer_partial_ftype rs6000_xfer_shared_libraries;
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/* Given REGNO, a gdb register number, return the corresponding
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number suitable for use as a ptrace() parameter. Return -1 if
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there's no suitable mapping. Also, set the int pointed to by
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ISFLOAT to indicate whether REGNO is a floating point register. */
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static int
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regmap (struct gdbarch *gdbarch, int regno, int *isfloat)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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*isfloat = 0;
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if (tdep->ppc_gp0_regnum <= regno
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&& regno < tdep->ppc_gp0_regnum + ppc_num_gprs)
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return regno;
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else if (tdep->ppc_fp0_regnum >= 0
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&& tdep->ppc_fp0_regnum <= regno
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&& regno < tdep->ppc_fp0_regnum + ppc_num_fprs)
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{
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*isfloat = 1;
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return regno - tdep->ppc_fp0_regnum + FPR0;
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}
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else if (regno == gdbarch_pc_regnum (gdbarch))
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return IAR;
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else if (regno == tdep->ppc_ps_regnum)
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return MSR;
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else if (regno == tdep->ppc_cr_regnum)
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return CR;
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else if (regno == tdep->ppc_lr_regnum)
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return LR;
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else if (regno == tdep->ppc_ctr_regnum)
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return CTR;
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else if (regno == tdep->ppc_xer_regnum)
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return XER;
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else if (tdep->ppc_fpscr_regnum >= 0
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&& regno == tdep->ppc_fpscr_regnum)
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return FPSCR;
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else if (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum)
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return MQ;
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else
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return -1;
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}
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/* Call ptrace(REQ, ID, ADDR, DATA, BUF). */
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static int
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rs6000_ptrace32 (int req, int id, int *addr, int data, int *buf)
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{
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#ifdef HAVE_PTRACE64
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int ret = ptrace64 (req, id, (uintptr_t) addr, data, buf);
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#else
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int ret = ptrace (req, id, (int *)addr, data, buf);
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#endif
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#if 0
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printf ("rs6000_ptrace32 (%d, %d, 0x%x, %08x, 0x%x) = 0x%x\n",
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req, id, (unsigned int)addr, data, (unsigned int)buf, ret);
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#endif
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return ret;
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}
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/* Call ptracex(REQ, ID, ADDR, DATA, BUF). */
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static int
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rs6000_ptrace64 (int req, int id, long long addr, int data, void *buf)
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{
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#ifdef ARCH3264
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# ifdef HAVE_PTRACE64
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int ret = ptrace64 (req, id, addr, data, buf);
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# else
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int ret = ptracex (req, id, addr, data, buf);
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# endif
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#else
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int ret = 0;
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#endif
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#if 0
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printf ("rs6000_ptrace64 (%d, %d, %s, %08x, 0x%x) = 0x%x\n",
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req, id, hex_string (addr), data, (unsigned int)buf, ret);
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#endif
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return ret;
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}
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/* Fetch register REGNO from the inferior. */
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static void
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fetch_register (struct regcache *regcache, int regno)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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int addr[MAX_REGISTER_SIZE];
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int nr, isfloat;
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/* Retrieved values may be -1, so infer errors from errno. */
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errno = 0;
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nr = regmap (gdbarch, regno, &isfloat);
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/* Floating-point registers. */
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if (isfloat)
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rs6000_ptrace32 (PT_READ_FPR, ptid_get_pid (inferior_ptid), addr, nr, 0);
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/* Bogus register number. */
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else if (nr < 0)
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{
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if (regno >= gdbarch_num_regs (gdbarch))
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fprintf_unfiltered (gdb_stderr,
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"gdb error: register no %d not implemented.\n",
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regno);
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return;
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}
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/* Fixed-point registers. */
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else
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{
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if (!ARCH64 ())
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*addr = rs6000_ptrace32 (PT_READ_GPR, ptid_get_pid (inferior_ptid),
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(int *) nr, 0, 0);
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else
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{
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/* PT_READ_GPR requires the buffer parameter to point to long long,
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even if the register is really only 32 bits. */
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long long buf;
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rs6000_ptrace64 (PT_READ_GPR, ptid_get_pid (inferior_ptid),
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nr, 0, &buf);
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if (register_size (gdbarch, regno) == 8)
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memcpy (addr, &buf, 8);
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else
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*addr = buf;
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}
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}
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if (!errno)
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regcache_raw_supply (regcache, regno, (char *) addr);
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else
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{
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#if 0
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/* FIXME: this happens 3 times at the start of each 64-bit program. */
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perror (_("ptrace read"));
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#endif
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errno = 0;
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}
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}
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/* Store register REGNO back into the inferior. */
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static void
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store_register (struct regcache *regcache, int regno)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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int addr[MAX_REGISTER_SIZE];
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int nr, isfloat;
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/* Fetch the register's value from the register cache. */
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regcache_raw_collect (regcache, regno, addr);
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/* -1 can be a successful return value, so infer errors from errno. */
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errno = 0;
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nr = regmap (gdbarch, regno, &isfloat);
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/* Floating-point registers. */
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if (isfloat)
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rs6000_ptrace32 (PT_WRITE_FPR, ptid_get_pid (inferior_ptid), addr, nr, 0);
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/* Bogus register number. */
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else if (nr < 0)
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{
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if (regno >= gdbarch_num_regs (gdbarch))
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fprintf_unfiltered (gdb_stderr,
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"gdb error: register no %d not implemented.\n",
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regno);
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}
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/* Fixed-point registers. */
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else
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{
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/* The PT_WRITE_GPR operation is rather odd. For 32-bit inferiors,
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the register's value is passed by value, but for 64-bit inferiors,
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the address of a buffer containing the value is passed. */
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if (!ARCH64 ())
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rs6000_ptrace32 (PT_WRITE_GPR, ptid_get_pid (inferior_ptid),
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(int *) nr, *addr, 0);
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else
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{
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/* PT_WRITE_GPR requires the buffer parameter to point to an 8-byte
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area, even if the register is really only 32 bits. */
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long long buf;
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if (register_size (gdbarch, regno) == 8)
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memcpy (&buf, addr, 8);
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else
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buf = *addr;
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rs6000_ptrace64 (PT_WRITE_GPR, ptid_get_pid (inferior_ptid),
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nr, 0, &buf);
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}
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}
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if (errno)
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{
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perror (_("ptrace write"));
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errno = 0;
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}
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}
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/* Read from the inferior all registers if REGNO == -1 and just register
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REGNO otherwise. */
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static void
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rs6000_fetch_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regno)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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if (regno != -1)
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fetch_register (regcache, regno);
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else
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* Read 32 general purpose registers. */
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for (regno = tdep->ppc_gp0_regnum;
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regno < tdep->ppc_gp0_regnum + ppc_num_gprs;
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regno++)
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{
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fetch_register (regcache, regno);
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}
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/* Read general purpose floating point registers. */
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if (tdep->ppc_fp0_regnum >= 0)
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for (regno = 0; regno < ppc_num_fprs; regno++)
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fetch_register (regcache, tdep->ppc_fp0_regnum + regno);
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/* Read special registers. */
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fetch_register (regcache, gdbarch_pc_regnum (gdbarch));
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fetch_register (regcache, tdep->ppc_ps_regnum);
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fetch_register (regcache, tdep->ppc_cr_regnum);
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fetch_register (regcache, tdep->ppc_lr_regnum);
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fetch_register (regcache, tdep->ppc_ctr_regnum);
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fetch_register (regcache, tdep->ppc_xer_regnum);
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if (tdep->ppc_fpscr_regnum >= 0)
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fetch_register (regcache, tdep->ppc_fpscr_regnum);
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if (tdep->ppc_mq_regnum >= 0)
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fetch_register (regcache, tdep->ppc_mq_regnum);
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}
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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static void
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rs6000_store_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regno)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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if (regno != -1)
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store_register (regcache, regno);
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else
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* Write general purpose registers first. */
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for (regno = tdep->ppc_gp0_regnum;
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regno < tdep->ppc_gp0_regnum + ppc_num_gprs;
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regno++)
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{
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store_register (regcache, regno);
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}
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/* Write floating point registers. */
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if (tdep->ppc_fp0_regnum >= 0)
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for (regno = 0; regno < ppc_num_fprs; regno++)
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store_register (regcache, tdep->ppc_fp0_regnum + regno);
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/* Write special registers. */
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store_register (regcache, gdbarch_pc_regnum (gdbarch));
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store_register (regcache, tdep->ppc_ps_regnum);
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store_register (regcache, tdep->ppc_cr_regnum);
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store_register (regcache, tdep->ppc_lr_regnum);
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store_register (regcache, tdep->ppc_ctr_regnum);
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store_register (regcache, tdep->ppc_xer_regnum);
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if (tdep->ppc_fpscr_regnum >= 0)
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store_register (regcache, tdep->ppc_fpscr_regnum);
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if (tdep->ppc_mq_regnum >= 0)
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store_register (regcache, tdep->ppc_mq_regnum);
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}
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}
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/* Implement the to_xfer_partial target_ops method. */
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static enum target_xfer_status
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rs6000_xfer_partial (struct target_ops *ops, enum target_object object,
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const char *annex, gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
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{
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pid_t pid = ptid_get_pid (inferior_ptid);
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int arch64 = ARCH64 ();
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switch (object)
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{
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case TARGET_OBJECT_LIBRARIES_AIX:
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return rs6000_xfer_shared_libraries (ops, object, annex,
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readbuf, writebuf,
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offset, len, xfered_len);
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case TARGET_OBJECT_MEMORY:
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{
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union
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{
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PTRACE_TYPE_RET word;
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gdb_byte byte[sizeof (PTRACE_TYPE_RET)];
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} buffer;
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ULONGEST rounded_offset;
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LONGEST partial_len;
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/* Round the start offset down to the next long word
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boundary. */
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rounded_offset = offset & -(ULONGEST) sizeof (PTRACE_TYPE_RET);
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/* Since ptrace will transfer a single word starting at that
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rounded_offset the partial_len needs to be adjusted down to
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that (remember this function only does a single transfer).
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Should the required length be even less, adjust it down
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again. */
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partial_len = (rounded_offset + sizeof (PTRACE_TYPE_RET)) - offset;
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if (partial_len > len)
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partial_len = len;
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if (writebuf)
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{
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/* If OFFSET:PARTIAL_LEN is smaller than
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ROUNDED_OFFSET:WORDSIZE then a read/modify write will
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be needed. Read in the entire word. */
|
||
if (rounded_offset < offset
|
||
|| (offset + partial_len
|
||
< rounded_offset + sizeof (PTRACE_TYPE_RET)))
|
||
{
|
||
/* Need part of initial word -- fetch it. */
|
||
if (arch64)
|
||
buffer.word = rs6000_ptrace64 (PT_READ_I, pid,
|
||
rounded_offset, 0, NULL);
|
||
else
|
||
buffer.word = rs6000_ptrace32 (PT_READ_I, pid,
|
||
(int *) (uintptr_t)
|
||
rounded_offset,
|
||
0, NULL);
|
||
}
|
||
|
||
/* Copy data to be written over corresponding part of
|
||
buffer. */
|
||
memcpy (buffer.byte + (offset - rounded_offset),
|
||
writebuf, partial_len);
|
||
|
||
errno = 0;
|
||
if (arch64)
|
||
rs6000_ptrace64 (PT_WRITE_D, pid,
|
||
rounded_offset, buffer.word, NULL);
|
||
else
|
||
rs6000_ptrace32 (PT_WRITE_D, pid,
|
||
(int *) (uintptr_t) rounded_offset,
|
||
buffer.word, NULL);
|
||
if (errno)
|
||
return TARGET_XFER_EOF;
|
||
}
|
||
|
||
if (readbuf)
|
||
{
|
||
errno = 0;
|
||
if (arch64)
|
||
buffer.word = rs6000_ptrace64 (PT_READ_I, pid,
|
||
rounded_offset, 0, NULL);
|
||
else
|
||
buffer.word = rs6000_ptrace32 (PT_READ_I, pid,
|
||
(int *)(uintptr_t)rounded_offset,
|
||
0, NULL);
|
||
if (errno)
|
||
return TARGET_XFER_EOF;
|
||
|
||
/* Copy appropriate bytes out of the buffer. */
|
||
memcpy (readbuf, buffer.byte + (offset - rounded_offset),
|
||
partial_len);
|
||
}
|
||
|
||
*xfered_len = (ULONGEST) partial_len;
|
||
return TARGET_XFER_OK;
|
||
}
|
||
|
||
default:
|
||
return TARGET_XFER_E_IO;
|
||
}
|
||
}
|
||
|
||
/* Wait for the child specified by PTID to do something. Return the
|
||
process ID of the child, or MINUS_ONE_PTID in case of error; store
|
||
the status in *OURSTATUS. */
|
||
|
||
static ptid_t
|
||
rs6000_wait (struct target_ops *ops,
|
||
ptid_t ptid, struct target_waitstatus *ourstatus, int options)
|
||
{
|
||
pid_t pid;
|
||
int status, save_errno;
|
||
|
||
do
|
||
{
|
||
set_sigint_trap ();
|
||
|
||
do
|
||
{
|
||
pid = waitpid (ptid_get_pid (ptid), &status, 0);
|
||
save_errno = errno;
|
||
}
|
||
while (pid == -1 && errno == EINTR);
|
||
|
||
clear_sigint_trap ();
|
||
|
||
if (pid == -1)
|
||
{
|
||
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 = GDB_SIGNAL_UNKNOWN;
|
||
return inferior_ptid;
|
||
}
|
||
|
||
/* Ignore terminated detached child processes. */
|
||
if (!WIFSTOPPED (status) && pid != ptid_get_pid (inferior_ptid))
|
||
pid = -1;
|
||
}
|
||
while (pid == -1);
|
||
|
||
/* AIX has a couple of strange returns from wait(). */
|
||
|
||
/* stop after load" status. */
|
||
if (status == 0x57c)
|
||
ourstatus->kind = TARGET_WAITKIND_LOADED;
|
||
/* signal 0. I have no idea why wait(2) returns with this status word. */
|
||
else if (status == 0x7f)
|
||
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
|
||
/* A normal waitstatus. Let the usual macros deal with it. */
|
||
else
|
||
store_waitstatus (ourstatus, status);
|
||
|
||
return pid_to_ptid (pid);
|
||
}
|
||
|
||
|
||
/* Set the current architecture from the host running GDB. Called when
|
||
starting a child process. */
|
||
|
||
static void (*super_create_inferior) (struct target_ops *,char *exec_file,
|
||
char *allargs, char **env, int from_tty);
|
||
static void
|
||
rs6000_create_inferior (struct target_ops * ops, char *exec_file,
|
||
char *allargs, char **env, int from_tty)
|
||
{
|
||
enum bfd_architecture arch;
|
||
unsigned long mach;
|
||
bfd abfd;
|
||
struct gdbarch_info info;
|
||
|
||
super_create_inferior (ops, exec_file, allargs, env, from_tty);
|
||
|
||
if (__power_rs ())
|
||
{
|
||
arch = bfd_arch_rs6000;
|
||
mach = bfd_mach_rs6k;
|
||
}
|
||
else
|
||
{
|
||
arch = bfd_arch_powerpc;
|
||
mach = bfd_mach_ppc;
|
||
}
|
||
|
||
/* FIXME: schauer/2002-02-25:
|
||
We don't know if we are executing a 32 or 64 bit executable,
|
||
and have no way to pass the proper word size to rs6000_gdbarch_init.
|
||
So we have to avoid switching to a new architecture, if the architecture
|
||
matches already.
|
||
Blindly calling rs6000_gdbarch_init used to work in older versions of
|
||
GDB, as rs6000_gdbarch_init incorrectly used the previous tdep to
|
||
determine the wordsize. */
|
||
if (exec_bfd)
|
||
{
|
||
const struct bfd_arch_info *exec_bfd_arch_info;
|
||
|
||
exec_bfd_arch_info = bfd_get_arch_info (exec_bfd);
|
||
if (arch == exec_bfd_arch_info->arch)
|
||
return;
|
||
}
|
||
|
||
bfd_default_set_arch_mach (&abfd, arch, mach);
|
||
|
||
gdbarch_info_init (&info);
|
||
info.bfd_arch_info = bfd_get_arch_info (&abfd);
|
||
info.abfd = exec_bfd;
|
||
|
||
if (!gdbarch_update_p (info))
|
||
internal_error (__FILE__, __LINE__,
|
||
_("rs6000_create_inferior: failed "
|
||
"to select architecture"));
|
||
}
|
||
|
||
|
||
/* Shared Object support. */
|
||
|
||
/* Return the LdInfo data for the given process. Raises an error
|
||
if the data could not be obtained.
|
||
|
||
The returned value must be deallocated after use. */
|
||
|
||
static gdb_byte *
|
||
rs6000_ptrace_ldinfo (ptid_t ptid)
|
||
{
|
||
const int pid = ptid_get_pid (ptid);
|
||
int ldi_size = 1024;
|
||
gdb_byte *ldi = xmalloc (ldi_size);
|
||
int rc = -1;
|
||
|
||
while (1)
|
||
{
|
||
if (ARCH64 ())
|
||
rc = rs6000_ptrace64 (PT_LDINFO, pid, (unsigned long) ldi, ldi_size,
|
||
NULL);
|
||
else
|
||
rc = rs6000_ptrace32 (PT_LDINFO, pid, (int *) ldi, ldi_size, NULL);
|
||
|
||
if (rc != -1)
|
||
break; /* Success, we got the entire ld_info data. */
|
||
|
||
if (errno != ENOMEM)
|
||
perror_with_name (_("ptrace ldinfo"));
|
||
|
||
/* ldi is not big enough. Double it and try again. */
|
||
ldi_size *= 2;
|
||
ldi = xrealloc (ldi, ldi_size);
|
||
}
|
||
|
||
return ldi;
|
||
}
|
||
|
||
/* Implement the to_xfer_partial target_ops method for
|
||
TARGET_OBJECT_LIBRARIES_AIX objects. */
|
||
|
||
static enum target_xfer_status
|
||
rs6000_xfer_shared_libraries
|
||
(struct target_ops *ops, enum target_object object,
|
||
const char *annex, gdb_byte *readbuf, const gdb_byte *writebuf,
|
||
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
|
||
{
|
||
gdb_byte *ldi_buf;
|
||
ULONGEST result;
|
||
struct cleanup *cleanup;
|
||
|
||
/* This function assumes that it is being run with a live process.
|
||
Core files are handled via gdbarch. */
|
||
gdb_assert (target_has_execution);
|
||
|
||
if (writebuf)
|
||
return TARGET_XFER_E_IO;
|
||
|
||
ldi_buf = rs6000_ptrace_ldinfo (inferior_ptid);
|
||
gdb_assert (ldi_buf != NULL);
|
||
cleanup = make_cleanup (xfree, ldi_buf);
|
||
result = rs6000_aix_ld_info_to_xml (target_gdbarch (), ldi_buf,
|
||
readbuf, offset, len, 1);
|
||
xfree (ldi_buf);
|
||
|
||
do_cleanups (cleanup);
|
||
|
||
if (result == 0)
|
||
return TARGET_XFER_EOF;
|
||
else
|
||
{
|
||
*xfered_len = result;
|
||
return TARGET_XFER_OK;
|
||
}
|
||
}
|
||
|
||
void _initialize_rs6000_nat (void);
|
||
|
||
void
|
||
_initialize_rs6000_nat (void)
|
||
{
|
||
struct target_ops *t;
|
||
|
||
t = inf_ptrace_target ();
|
||
t->to_fetch_registers = rs6000_fetch_inferior_registers;
|
||
t->to_store_registers = rs6000_store_inferior_registers;
|
||
t->to_xfer_partial = rs6000_xfer_partial;
|
||
|
||
super_create_inferior = t->to_create_inferior;
|
||
t->to_create_inferior = rs6000_create_inferior;
|
||
|
||
t->to_wait = rs6000_wait;
|
||
|
||
add_target (t);
|
||
}
|