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822c97322c
Use regcache_raw_collect instead of regcache_collect. * regcache.h (regcache_collect): Delete declaration. * regcache.c (regcache_colect): Delete function. * win32-nat.c (do_child_store_inferior_registers): Update. * sol-thread.c (sol_thread_store_registers): Update. * shnbsd-tdep.c (shnbsd_fill_reg): Update. * rs6000-nat.c (store_register): Update. * remote.c (store_register_using_P, remote_store_registers): Update. * ppcnbsd-tdep.c (ppcnbsd_fill_reg): Update. * ppc-linux-nat.c (store_altivec_register, store_spe_register) (fill_vrregset, store_spe_registers, fill_gregset) (fill_gregset): Update. * nto-procfs.c (procfs_store_registers): Update. * mipsnbsd-tdep.c (mipsnbsd_fill_reg): Update. * mips-linux-tdep.c (fill_gregset, mips64_fill_gregset): Update. * m68klinux-nat.c (store_register, fill_gregset): Update. * m68k-tdep.c (fill_gregset): Update. * infptrace.c (store_register): Update. * i386-nto-tdep.c (i386nto_regset_fill): Update. * i386-linux-nat.c (store_register, fill_gregset): Update. * hppa-linux-nat.c (fill_gregset): Update. * go32-nat.c (store_register): Update. * armnbsd-nat.c (store_register, store_regs, store_fp_register) (store_fp_regs): Update. * arm-linux-nat.c (store_nwfpe_single, store_nwfpe_double) (store_nwfpe_extended, store_fpregister, store_fpregs) (store_register, store_regs, fill_gregset, fill_fpregset): Update. * alpha-tdep.c (alpha_fill_int_regs, alpha_fill_fp_regs): Update. * aix-thread.c (fill_gprs64, fill_fprs, fill_sprs64, fill_sprs32) (store_regs_user_thread, store_regs_kernel_thread): Update.
1684 lines
46 KiB
C
1684 lines
46 KiB
C
/* Solaris threads debugging interface.
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This module implements a sort of half target that sits between the
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machine-independent parts of GDB and the /proc interface (procfs.c)
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to provide access to the Solaris user-mode thread implementation.
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Solaris threads are true user-mode threads, which are invoked via
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the thr_* and pthread_* (native and POSIX respectivly) interfaces.
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These are mostly implemented in user-space, with all thread context
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kept in various structures that live in the user's heap. These
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should not be confused with lightweight processes (LWPs), which are
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implemented by the kernel, and scheduled without explicit
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intervention by the process.
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Just to confuse things a little, Solaris threads (both native and
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POSIX) are actually implemented using LWPs. In general, there are
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going to be more threads than LWPs. There is no fixed
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correspondence between a thread and an LWP. When a thread wants to
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run, it gets scheduled onto the first available LWP and can
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therefore migrate from one LWP to another as time goes on. A
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sleeping thread may not be associated with an LWP at all!
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To make it possible to mess with threads, Sun provides a library
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called libthread_db.so.1 (not to be confused with
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libthread_db.so.0, which doesn't have a published interface). This
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interface has an upper part, which it provides, and a lower part
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which we provide. The upper part consists of the td_* routines,
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which allow us to find all the threads, query their state, etc...
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The lower part consists of all of the ps_*, which are used by the
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td_* routines to read/write memory, manipulate LWPs, lookup
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symbols, etc... The ps_* routines actually do most of their work
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by calling functions in procfs.c. */
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#include "defs.h"
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#include <thread.h>
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#include <proc_service.h>
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#include <thread_db.h>
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#include "gdbthread.h"
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#include "target.h"
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#include "inferior.h"
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#include <fcntl.h>
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#include "gdb_stat.h"
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#include <dlfcn.h>
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#include "gdbcmd.h"
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#include "gdbcore.h"
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#include "regcache.h"
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#include "symfile.h"
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#include "gdb_string.h"
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extern struct target_ops sol_thread_ops; /* Forward declaration */
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extern struct target_ops sol_core_ops; /* Forward declaration */
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/* place to store core_ops before we overwrite it */
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static struct target_ops orig_core_ops;
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struct target_ops sol_thread_ops;
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struct target_ops sol_core_ops;
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extern int procfs_suppress_run;
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extern struct target_ops procfs_ops; /* target vector for procfs.c */
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extern struct target_ops core_ops; /* target vector for corelow.c */
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extern char *procfs_pid_to_str (ptid_t ptid);
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/* Prototypes for supply_gregset etc. */
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#include "gregset.h"
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/* This struct is defined by us, but mainly used for the proc_service
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interface. We don't have much use for it, except as a handy place
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to get a real PID for memory accesses. */
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struct ps_prochandle
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{
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ptid_t ptid;
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};
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struct string_map
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{
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int num;
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char *str;
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};
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static struct ps_prochandle main_ph;
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static td_thragent_t *main_ta;
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static int sol_thread_active = 0;
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static void sol_thread_resume (ptid_t ptid, int step, enum target_signal signo);
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static int sol_thread_alive (ptid_t ptid);
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static void sol_core_close (int quitting);
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static void init_sol_thread_ops (void);
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static void init_sol_core_ops (void);
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/* Default definitions: These must be defined in tm.h if they are to
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be shared with a process module such as procfs. */
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#define GET_PID(ptid) ptid_get_pid (ptid)
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#define GET_LWP(ptid) ptid_get_lwp (ptid)
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#define GET_THREAD(ptid) ptid_get_tid (ptid)
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#define is_lwp(ptid) (GET_LWP (ptid) != 0)
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#define is_thread(ptid) (GET_THREAD (ptid) != 0)
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#define BUILD_LWP(lwp, pid) ptid_build (pid, lwp, 0)
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#define BUILD_THREAD(tid, pid) ptid_build (pid, 0, tid)
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/* Pointers to routines from libthread_db resolved by dlopen(). */
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static void (*p_td_log)(const int on_off);
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static td_err_e (*p_td_ta_new)(const struct ps_prochandle *ph_p,
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td_thragent_t **ta_pp);
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static td_err_e (*p_td_ta_delete)(td_thragent_t *ta_p);
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static td_err_e (*p_td_init)(void);
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static td_err_e (*p_td_ta_get_ph)(const td_thragent_t *ta_p,
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struct ps_prochandle **ph_pp);
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static td_err_e (*p_td_ta_get_nthreads)(const td_thragent_t *ta_p,
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int *nthread_p);
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static td_err_e (*p_td_ta_tsd_iter)(const td_thragent_t *ta_p,
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td_key_iter_f *cb, void *cbdata_p);
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static td_err_e (*p_td_ta_thr_iter)(const td_thragent_t *ta_p,
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td_thr_iter_f *cb, void *cbdata_p,
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td_thr_state_e state, int ti_pri,
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sigset_t *ti_sigmask_p,
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unsigned ti_user_flags);
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static td_err_e (*p_td_thr_validate)(const td_thrhandle_t *th_p);
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static td_err_e (*p_td_thr_tsd)(const td_thrhandle_t * th_p,
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const thread_key_t key, void **data_pp);
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static td_err_e (*p_td_thr_get_info)(const td_thrhandle_t *th_p,
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td_thrinfo_t *ti_p);
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static td_err_e (*p_td_thr_getfpregs)(const td_thrhandle_t *th_p,
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prfpregset_t *fpregset);
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static td_err_e (*p_td_thr_getxregsize)(const td_thrhandle_t *th_p,
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int *xregsize);
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static td_err_e (*p_td_thr_getxregs)(const td_thrhandle_t *th_p,
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const caddr_t xregset);
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static td_err_e (*p_td_thr_sigsetmask)(const td_thrhandle_t *th_p,
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const sigset_t ti_sigmask);
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static td_err_e (*p_td_thr_setprio)(const td_thrhandle_t *th_p,
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const int ti_pri);
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static td_err_e (*p_td_thr_setsigpending)(const td_thrhandle_t *th_p,
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const uchar_t ti_pending_flag,
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const sigset_t ti_pending);
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static td_err_e (*p_td_thr_setfpregs)(const td_thrhandle_t *th_p,
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const prfpregset_t *fpregset);
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static td_err_e (*p_td_thr_setxregs)(const td_thrhandle_t *th_p,
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const caddr_t xregset);
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static td_err_e (*p_td_ta_map_id2thr)(const td_thragent_t *ta_p,
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thread_t tid,
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td_thrhandle_t *th_p);
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static td_err_e (*p_td_ta_map_lwp2thr)(const td_thragent_t *ta_p,
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lwpid_t lwpid,
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td_thrhandle_t *th_p);
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static td_err_e (*p_td_thr_getgregs)(const td_thrhandle_t *th_p,
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prgregset_t regset);
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static td_err_e (*p_td_thr_setgregs)(const td_thrhandle_t *th_p,
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const prgregset_t regset);
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/* Return the libthread_db error string associated with ERRCODE. If
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ERRCODE is unknown, return an appropriate message. */
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static char *
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td_err_string (td_err_e errcode)
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{
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static struct string_map td_err_table[] =
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{
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{ TD_OK, "generic \"call succeeded\"" },
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{ TD_ERR, "generic error." },
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{ TD_NOTHR, "no thread can be found to satisfy query" },
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{ TD_NOSV, "no synch. variable can be found to satisfy query" },
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{ TD_NOLWP, "no lwp can be found to satisfy query" },
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{ TD_BADPH, "invalid process handle" },
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{ TD_BADTH, "invalid thread handle" },
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{ TD_BADSH, "invalid synchronization handle" },
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{ TD_BADTA, "invalid thread agent" },
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{ TD_BADKEY, "invalid key" },
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{ TD_NOMSG, "td_thr_event_getmsg() called when there was no message" },
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{ TD_NOFPREGS, "FPU register set not available for given thread" },
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{ TD_NOLIBTHREAD, "application not linked with libthread" },
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{ TD_NOEVENT, "requested event is not supported" },
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{ TD_NOCAPAB, "capability not available" },
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{ TD_DBERR, "Debugger service failed" },
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{ TD_NOAPLIC, "Operation not applicable to" },
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{ TD_NOTSD, "No thread specific data for this thread" },
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{ TD_MALLOC, "Malloc failed" },
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{ TD_PARTIALREG, "Only part of register set was written/read" },
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{ TD_NOXREGS, "X register set not available for given thread" }
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};
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const int td_err_size = sizeof td_err_table / sizeof (struct string_map);
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int i;
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static char buf[50];
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for (i = 0; i < td_err_size; i++)
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if (td_err_table[i].num == errcode)
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return td_err_table[i].str;
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sprintf (buf, "Unknown libthread_db error code: %d", errcode);
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return buf;
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}
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/* Return the the libthread_db state string assicoated with STATECODE.
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If STATECODE is unknown, return an appropriate message. */
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static char *
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td_state_string (td_thr_state_e statecode)
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{
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static struct string_map td_thr_state_table[] =
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{
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{ TD_THR_ANY_STATE, "any state" },
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{ TD_THR_UNKNOWN, "unknown" },
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{ TD_THR_STOPPED, "stopped" },
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{ TD_THR_RUN, "run" },
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{ TD_THR_ACTIVE, "active" },
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{ TD_THR_ZOMBIE, "zombie" },
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{ TD_THR_SLEEP, "sleep" },
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{ TD_THR_STOPPED_ASLEEP, "stopped asleep" }
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};
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const int td_thr_state_table_size =
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sizeof td_thr_state_table / sizeof (struct string_map);
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int i;
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static char buf[50];
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for (i = 0; i < td_thr_state_table_size; i++)
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if (td_thr_state_table[i].num == statecode)
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return td_thr_state_table[i].str;
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sprintf (buf, "Unknown libthread_db state code: %d", statecode);
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return buf;
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}
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/* Convert a POSIX or Solaris thread ID into a LWP ID. If THREAD_ID
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doesn't exist, that's an error. If it's an inactive thread, return
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DEFAULT_LPW.
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NOTE: This function probably shouldn't call error(). */
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static ptid_t
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thread_to_lwp (ptid_t thread_id, int default_lwp)
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{
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td_thrinfo_t ti;
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td_thrhandle_t th;
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td_err_e val;
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if (is_lwp (thread_id))
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return thread_id; /* It's already an LWP ID. */
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/* It's a thread. Convert to LWP. */
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val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th);
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if (val == TD_NOTHR)
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return pid_to_ptid (-1); /* Thread must have terminated. */
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else if (val != TD_OK)
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error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val));
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val = p_td_thr_get_info (&th, &ti);
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if (val == TD_NOTHR)
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return pid_to_ptid (-1); /* Thread must have terminated. */
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else if (val != TD_OK)
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error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val));
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if (ti.ti_state != TD_THR_ACTIVE)
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{
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if (default_lwp != -1)
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return pid_to_ptid (default_lwp);
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error ("thread_to_lwp: thread state not active: %s",
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td_state_string (ti.ti_state));
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}
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return BUILD_LWP (ti.ti_lid, PIDGET (thread_id));
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}
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/* Convert an LWP ID into a POSIX or Solaris thread ID. If LWP_ID
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doesn't exists, that's an error.
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NOTE: This function probably shouldn't call error(). */
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static ptid_t
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lwp_to_thread (ptid_t lwp)
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{
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td_thrinfo_t ti;
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td_thrhandle_t th;
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td_err_e val;
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if (is_thread (lwp))
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return lwp; /* It's already a thread ID. */
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/* It's an LWP. Convert it to a thread ID. */
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if (!sol_thread_alive (lwp))
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return pid_to_ptid (-1); /* Must be a defunct LPW. */
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val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th);
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if (val == TD_NOTHR)
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return pid_to_ptid (-1); /* Thread must have terminated. */
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else if (val != TD_OK)
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error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val));
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val = p_td_thr_validate (&th);
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if (val == TD_NOTHR)
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return lwp; /* Unknown to libthread; just return LPW, */
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else if (val != TD_OK)
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error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val));
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val = p_td_thr_get_info (&th, &ti);
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if (val == TD_NOTHR)
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return pid_to_ptid (-1); /* Thread must have terminated. */
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else if (val != TD_OK)
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error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val));
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return BUILD_THREAD (ti.ti_tid, PIDGET (lwp));
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}
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/* Most target vector functions from here on actually just pass
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through to procfs.c, as they don't need to do anything specific for
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threads. */
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static void
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sol_thread_open (char *arg, int from_tty)
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{
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procfs_ops.to_open (arg, from_tty);
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||
}
|
||
|
||
/* Attach to process PID, then initialize for debugging it and wait
|
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for the trace-trap that results from attaching. */
|
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|
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static void
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sol_thread_attach (char *args, int from_tty)
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{
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procfs_ops.to_attach (args, from_tty);
|
||
|
||
/* Must get symbols from shared libraries before libthread_db can run! */
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SOLIB_ADD ((char *) 0, from_tty, (struct target_ops *) 0, auto_solib_add);
|
||
|
||
if (sol_thread_active)
|
||
{
|
||
printf_filtered ("sol-thread active.\n");
|
||
main_ph.ptid = inferior_ptid; /* Save for xfer_memory. */
|
||
push_target (&sol_thread_ops);
|
||
inferior_ptid = lwp_to_thread (inferior_ptid);
|
||
if (PIDGET (inferior_ptid) == -1)
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||
inferior_ptid = main_ph.ptid;
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||
else
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add_thread (inferior_ptid);
|
||
}
|
||
|
||
/* FIXME: Might want to iterate over all the threads and register
|
||
them. */
|
||
}
|
||
|
||
/* Take a program previously attached to and detaches it. The program
|
||
resumes execution and will no longer stop on signals, etc. We'd
|
||
better not have left any breakpoints in the program or it'll die
|
||
when it hits one. For this to work, it may be necessary for the
|
||
process to have been previously attached. It *might* work if the
|
||
program was started via the normal ptrace (PTRACE_TRACEME). */
|
||
|
||
static void
|
||
sol_thread_detach (char *args, int from_tty)
|
||
{
|
||
inferior_ptid = pid_to_ptid (PIDGET (main_ph.ptid));
|
||
unpush_target (&sol_thread_ops);
|
||
procfs_ops.to_detach (args, from_tty);
|
||
}
|
||
|
||
/* Resume execution of process PTID. If STEP is nozero, then just
|
||
single step it. If SIGNAL is nonzero, restart it with that signal
|
||
activated. We may have to convert PTID from a thread ID to an LWP
|
||
ID for procfs. */
|
||
|
||
static void
|
||
sol_thread_resume (ptid_t ptid, int step, enum target_signal signo)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
|
||
if (PIDGET (inferior_ptid) == -1)
|
||
inferior_ptid = procfs_first_available ();
|
||
|
||
if (PIDGET (ptid) != -1)
|
||
{
|
||
ptid_t save_ptid = ptid;
|
||
|
||
ptid = thread_to_lwp (ptid, -2);
|
||
if (PIDGET (ptid) == -2) /* Inactive thread. */
|
||
error ("This version of Solaris can't start inactive threads.");
|
||
if (info_verbose && PIDGET (ptid) == -1)
|
||
warning ("Specified thread %ld seems to have terminated",
|
||
GET_THREAD (save_ptid));
|
||
}
|
||
|
||
procfs_ops.to_resume (ptid, step, signo);
|
||
|
||
do_cleanups (old_chain);
|
||
}
|
||
|
||
/* Wait for any threads to stop. We may have to convert PIID from a
|
||
thread ID to an LWP ID, and vice versa on the way out. */
|
||
|
||
static ptid_t
|
||
sol_thread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
|
||
{
|
||
ptid_t rtnval;
|
||
ptid_t save_ptid;
|
||
struct cleanup *old_chain;
|
||
|
||
save_ptid = inferior_ptid;
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = thread_to_lwp (inferior_ptid, PIDGET (main_ph.ptid));
|
||
if (PIDGET (inferior_ptid) == -1)
|
||
inferior_ptid = procfs_first_available ();
|
||
|
||
if (PIDGET (ptid) != -1)
|
||
{
|
||
ptid_t save_ptid = ptid;
|
||
|
||
ptid = thread_to_lwp (ptid, -2);
|
||
if (PIDGET (ptid) == -2) /* Inactive thread. */
|
||
error ("This version of Solaris can't start inactive threads.");
|
||
if (info_verbose && PIDGET (ptid) == -1)
|
||
warning ("Specified thread %ld seems to have terminated",
|
||
GET_THREAD (save_ptid));
|
||
}
|
||
|
||
rtnval = procfs_ops.to_wait (ptid, ourstatus);
|
||
|
||
if (ourstatus->kind != TARGET_WAITKIND_EXITED)
|
||
{
|
||
/* Map the LWP of interest back to the appropriate thread ID. */
|
||
rtnval = lwp_to_thread (rtnval);
|
||
if (PIDGET (rtnval) == -1)
|
||
rtnval = save_ptid;
|
||
|
||
/* See if we have a new thread. */
|
||
if (is_thread (rtnval)
|
||
&& !ptid_equal (rtnval, save_ptid)
|
||
&& !in_thread_list (rtnval))
|
||
{
|
||
printf_filtered ("[New %s]\n", target_pid_to_str (rtnval));
|
||
add_thread (rtnval);
|
||
}
|
||
}
|
||
|
||
/* During process initialization, we may get here without the thread
|
||
package being initialized, since that can only happen after we've
|
||
found the shared libs. */
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return rtnval;
|
||
}
|
||
|
||
static void
|
||
sol_thread_fetch_registers (int regnum)
|
||
{
|
||
thread_t thread;
|
||
td_thrhandle_t thandle;
|
||
td_err_e val;
|
||
prgregset_t gregset;
|
||
prfpregset_t fpregset;
|
||
#if 0
|
||
int xregsize;
|
||
caddr_t xregset;
|
||
#endif
|
||
|
||
if (!is_thread (inferior_ptid))
|
||
{
|
||
/* It's an LWP; pass the request on to procfs. */
|
||
if (target_has_execution)
|
||
procfs_ops.to_fetch_registers (regnum);
|
||
else
|
||
orig_core_ops.to_fetch_registers (regnum);
|
||
return;
|
||
}
|
||
|
||
/* Solaris thread: convert INFERIOR_PTID into a td_thrhandle_t. */
|
||
thread = GET_THREAD (inferior_ptid);
|
||
if (thread == 0)
|
||
error ("sol_thread_fetch_registers: thread == 0");
|
||
|
||
val = p_td_ta_map_id2thr (main_ta, thread, &thandle);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s",
|
||
td_err_string (val));
|
||
|
||
/* Get the general-purpose registers. */
|
||
|
||
val = p_td_thr_getgregs (&thandle, gregset);
|
||
if (val != TD_OK && val != TD_PARTIALREG)
|
||
error ("sol_thread_fetch_registers: td_thr_getgregs %s",
|
||
td_err_string (val));
|
||
|
||
/* For SPARC, TD_PARTIALREG means that only %i0...%i7, %l0..%l7, %pc
|
||
and %sp are saved (by a thread context switch). */
|
||
|
||
/* And, now the floating-point registers. */
|
||
|
||
val = p_td_thr_getfpregs (&thandle, &fpregset);
|
||
if (val != TD_OK && val != TD_NOFPREGS)
|
||
error ("sol_thread_fetch_registers: td_thr_getfpregs %s",
|
||
td_err_string (val));
|
||
|
||
/* Note that we must call supply_gregset and supply_fpregset *after*
|
||
calling the td routines because the td routines call ps_lget*
|
||
which affect the values stored in the registers array. */
|
||
|
||
supply_gregset ((gdb_gregset_t *) &gregset);
|
||
supply_fpregset ((gdb_fpregset_t *) &fpregset);
|
||
|
||
#if 0
|
||
/* FIXME: libthread_db doesn't seem to handle this right. */
|
||
val = td_thr_getxregsize (&thandle, &xregsize);
|
||
if (val != TD_OK && val != TD_NOXREGS)
|
||
error ("sol_thread_fetch_registers: td_thr_getxregsize %s",
|
||
td_err_string (val));
|
||
|
||
if (val == TD_OK)
|
||
{
|
||
xregset = alloca (xregsize);
|
||
val = td_thr_getxregs (&thandle, xregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_fetch_registers: td_thr_getxregs %s",
|
||
td_err_string (val));
|
||
}
|
||
#endif
|
||
}
|
||
|
||
static void
|
||
sol_thread_store_registers (int regnum)
|
||
{
|
||
thread_t thread;
|
||
td_thrhandle_t thandle;
|
||
td_err_e val;
|
||
prgregset_t gregset;
|
||
prfpregset_t fpregset;
|
||
#if 0
|
||
int xregsize;
|
||
caddr_t xregset;
|
||
#endif
|
||
|
||
if (!is_thread (inferior_ptid))
|
||
{
|
||
/* It's an LWP; pass the request on to procfs.c. */
|
||
procfs_ops.to_store_registers (regnum);
|
||
return;
|
||
}
|
||
|
||
/* Solaris thread: convert INFERIOR_PTID into a td_thrhandle_t. */
|
||
thread = GET_THREAD (inferior_ptid);
|
||
|
||
val = p_td_ta_map_id2thr (main_ta, thread, &thandle);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_ta_map_id2thr %s",
|
||
td_err_string (val));
|
||
|
||
if (regnum != -1)
|
||
{
|
||
/* Not writing all the registers. */
|
||
char old_value[MAX_REGISTER_SIZE];
|
||
|
||
/* Save new register value. */
|
||
regcache_raw_collect (current_regcache, regnum, old_value);
|
||
|
||
val = p_td_thr_getgregs (&thandle, gregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_thr_getgregs %s",
|
||
td_err_string (val));
|
||
val = p_td_thr_getfpregs (&thandle, &fpregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_thr_getfpregs %s",
|
||
td_err_string (val));
|
||
|
||
/* Restore new register value. */
|
||
regcache_raw_supply (current_regcache, regnum, old_value);
|
||
|
||
#if 0
|
||
/* FIXME: libthread_db doesn't seem to handle this right. */
|
||
val = td_thr_getxregsize (&thandle, &xregsize);
|
||
if (val != TD_OK && val != TD_NOXREGS)
|
||
error ("sol_thread_store_registers: td_thr_getxregsize %s",
|
||
td_err_string (val));
|
||
|
||
if (val == TD_OK)
|
||
{
|
||
xregset = alloca (xregsize);
|
||
val = td_thr_getxregs (&thandle, xregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_thr_getxregs %s",
|
||
td_err_string (val));
|
||
}
|
||
#endif
|
||
}
|
||
|
||
fill_gregset ((gdb_gregset_t *) &gregset, regnum);
|
||
fill_fpregset ((gdb_fpregset_t *) &fpregset, regnum);
|
||
|
||
val = p_td_thr_setgregs (&thandle, gregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_thr_setgregs %s",
|
||
td_err_string (val));
|
||
val = p_td_thr_setfpregs (&thandle, &fpregset);
|
||
if (val != TD_OK)
|
||
error ("sol_thread_store_registers: td_thr_setfpregs %s",
|
||
td_err_string (val));
|
||
|
||
#if 0
|
||
/* FIXME: libthread_db doesn't seem to handle this right. */
|
||
val = td_thr_getxregsize (&thandle, &xregsize);
|
||
if (val != TD_OK && val != TD_NOXREGS)
|
||
error ("sol_thread_store_registers: td_thr_getxregsize %s",
|
||
td_err_string (val));
|
||
|
||
/* ??? Should probably do something about writing the xregs here,
|
||
but what are they? */
|
||
#endif
|
||
}
|
||
|
||
/* Get ready to modify the registers array. On machines which store
|
||
individual registers, this doesn't need to do anything. On
|
||
machines which store all the registers in one fell swoop, this
|
||
makes sure that registers contains all the registers from the
|
||
program being debugged. */
|
||
|
||
static void
|
||
sol_thread_prepare_to_store (void)
|
||
{
|
||
procfs_ops.to_prepare_to_store ();
|
||
}
|
||
|
||
/* Transfer LEN bytes between GDB address MYADDR and target address
|
||
MEMADDR. If DOWRITE is non-zero, transfer them to the target,
|
||
otherwise transfer them from the target. TARGET is unused.
|
||
|
||
Returns the number of bytes transferred. */
|
||
|
||
static int
|
||
sol_thread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int dowrite,
|
||
struct mem_attrib *attrib,
|
||
struct target_ops *target)
|
||
{
|
||
int retval;
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
if (is_thread (inferior_ptid) || !target_thread_alive (inferior_ptid))
|
||
{
|
||
/* It's either a thread or an LWP that isn't alive. Any live
|
||
LWP will do so use the first available.
|
||
|
||
NOTE: We don't need to call switch_to_thread; we're just
|
||
reading memory. */
|
||
inferior_ptid = procfs_first_available ();
|
||
}
|
||
|
||
if (target_has_execution)
|
||
retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len,
|
||
dowrite, attrib, target);
|
||
else
|
||
retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len,
|
||
dowrite, attrib, target);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Perform partial transfers on OBJECT. See target_read_partial and
|
||
target_write_partial for details of each variant. One, and only
|
||
one, of readbuf or writebuf must be non-NULL. */
|
||
|
||
static LONGEST
|
||
sol_thread_xfer_partial (struct target_ops *ops, enum target_object object,
|
||
const char *annex, void *readbuf,
|
||
const void *writebuf, ULONGEST offset, LONGEST len)
|
||
{
|
||
int retval;
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
if (is_thread (inferior_ptid) || !target_thread_alive (inferior_ptid))
|
||
{
|
||
/* It's either a thread or an LWP that isn't alive. Any live
|
||
LWP will do so use the first available.
|
||
|
||
NOTE: We don't need to call switch_to_thread; we're just
|
||
reading memory. */
|
||
inferior_ptid = procfs_first_available ();
|
||
}
|
||
|
||
if (target_has_execution)
|
||
retval = procfs_ops.to_xfer_partial (ops, object, annex,
|
||
readbuf, writebuf, offset, len);
|
||
else
|
||
retval = orig_core_ops.to_xfer_partial (ops, object, annex,
|
||
readbuf, writebuf, offset, len);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Print status information about what we're accessing. */
|
||
|
||
static void
|
||
sol_thread_files_info (struct target_ops *ignore)
|
||
{
|
||
procfs_ops.to_files_info (ignore);
|
||
}
|
||
|
||
static void
|
||
sol_thread_kill_inferior (void)
|
||
{
|
||
procfs_ops.to_kill ();
|
||
}
|
||
|
||
static void
|
||
sol_thread_notice_signals (ptid_t ptid)
|
||
{
|
||
procfs_ops.to_notice_signals (pid_to_ptid (PIDGET (ptid)));
|
||
}
|
||
|
||
/* Fork an inferior process, and start debugging it with /proc. */
|
||
|
||
static void
|
||
sol_thread_create_inferior (char *exec_file, char *allargs, char **env,
|
||
int from_tty)
|
||
{
|
||
procfs_ops.to_create_inferior (exec_file, allargs, env, from_tty);
|
||
|
||
if (sol_thread_active && !ptid_equal (inferior_ptid, null_ptid))
|
||
{
|
||
/* Save for xfer_memory. */
|
||
main_ph.ptid = inferior_ptid;
|
||
|
||
push_target (&sol_thread_ops);
|
||
|
||
inferior_ptid = lwp_to_thread (inferior_ptid);
|
||
if (PIDGET (inferior_ptid) == -1)
|
||
inferior_ptid = main_ph.ptid;
|
||
|
||
if (!in_thread_list (inferior_ptid))
|
||
add_thread (inferior_ptid);
|
||
}
|
||
}
|
||
|
||
/* This routine is called whenever a new symbol table is read in, or
|
||
when all symbol tables are removed. libthread_db can only be
|
||
initialized when it finds the right variables in libthread.so.
|
||
Since it's a shared library, those variables don't show up until
|
||
the library gets mapped and the symbol table is read in.
|
||
|
||
This new_objfile event is managed by a chained function pointer.
|
||
It is the callee's responsability to call the next client on the
|
||
chain. */
|
||
|
||
/* Saved pointer to previous owner of the new_objfile event. */
|
||
static void (*target_new_objfile_chain) (struct objfile *);
|
||
|
||
void
|
||
sol_thread_new_objfile (struct objfile *objfile)
|
||
{
|
||
td_err_e val;
|
||
|
||
if (!objfile)
|
||
{
|
||
sol_thread_active = 0;
|
||
goto quit;
|
||
}
|
||
|
||
/* Don't do anything if init failed to resolve the libthread_db
|
||
library. */
|
||
if (!procfs_suppress_run)
|
||
goto quit;
|
||
|
||
/* Now, initialize libthread_db. This needs to be done after the
|
||
shared libraries are located because it needs information from
|
||
the user's thread library. */
|
||
|
||
val = p_td_init ();
|
||
if (val != TD_OK)
|
||
{
|
||
warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val));
|
||
goto quit;
|
||
}
|
||
|
||
val = p_td_ta_new (&main_ph, &main_ta);
|
||
if (val == TD_NOLIBTHREAD)
|
||
goto quit;
|
||
else if (val != TD_OK)
|
||
{
|
||
warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val));
|
||
goto quit;
|
||
}
|
||
|
||
sol_thread_active = 1;
|
||
|
||
quit:
|
||
/* Call predecessor on chain, if any. */
|
||
if (target_new_objfile_chain)
|
||
target_new_objfile_chain (objfile);
|
||
}
|
||
|
||
/* Clean up after the inferior dies. */
|
||
|
||
static void
|
||
sol_thread_mourn_inferior (void)
|
||
{
|
||
unpush_target (&sol_thread_ops);
|
||
procfs_ops.to_mourn_inferior ();
|
||
}
|
||
|
||
/* Mark our target-struct as eligible for stray "run" and "attach"
|
||
commands. */
|
||
|
||
static int
|
||
sol_thread_can_run (void)
|
||
{
|
||
return procfs_suppress_run;
|
||
}
|
||
|
||
/*
|
||
|
||
LOCAL FUNCTION
|
||
|
||
sol_thread_alive - test thread for "aliveness"
|
||
|
||
SYNOPSIS
|
||
|
||
static bool sol_thread_alive (ptid_t ptid);
|
||
|
||
DESCRIPTION
|
||
|
||
returns true if thread still active in inferior.
|
||
|
||
*/
|
||
|
||
/* Return true if PTID is still active in the inferior. */
|
||
|
||
static int
|
||
sol_thread_alive (ptid_t ptid)
|
||
{
|
||
if (is_thread (ptid))
|
||
{
|
||
/* It's a (user-level) thread. */
|
||
td_err_e val;
|
||
td_thrhandle_t th;
|
||
int pid;
|
||
|
||
pid = GET_THREAD (ptid);
|
||
if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK)
|
||
return 0; /* Thread not found. */
|
||
if ((val = p_td_thr_validate (&th)) != TD_OK)
|
||
return 0; /* Thread not valid. */
|
||
return 1; /* Known thread. */
|
||
}
|
||
else
|
||
{
|
||
/* It's an LPW; pass the request on to procfs. */
|
||
if (target_has_execution)
|
||
return procfs_ops.to_thread_alive (ptid);
|
||
else
|
||
return orig_core_ops.to_thread_alive (ptid);
|
||
}
|
||
}
|
||
|
||
static void
|
||
sol_thread_stop (void)
|
||
{
|
||
procfs_ops.to_stop ();
|
||
}
|
||
|
||
/* These routines implement the lower half of the thread_db interface,
|
||
i.e. the ps_* routines. */
|
||
|
||
/* Various versions of <proc_service.h> have slightly different
|
||
function prototypes. In particular, we have
|
||
|
||
NEWER OLDER
|
||
struct ps_prochandle * const struct ps_prochandle *
|
||
void* char*
|
||
const void* char*
|
||
int size_t
|
||
|
||
Which one you have depends on the Solaris version and what patches
|
||
you've applied. On the theory that there are only two major
|
||
variants, we have configure check the prototype of ps_pdwrite (),
|
||
and use that info to make appropriate typedefs here. */
|
||
|
||
#ifdef PROC_SERVICE_IS_OLD
|
||
typedef const struct ps_prochandle *gdb_ps_prochandle_t;
|
||
typedef char *gdb_ps_read_buf_t;
|
||
typedef char *gdb_ps_write_buf_t;
|
||
typedef int gdb_ps_size_t;
|
||
typedef paddr_t gdb_ps_addr_t;
|
||
#else
|
||
typedef struct ps_prochandle *gdb_ps_prochandle_t;
|
||
typedef void *gdb_ps_read_buf_t;
|
||
typedef const void *gdb_ps_write_buf_t;
|
||
typedef size_t gdb_ps_size_t;
|
||
typedef psaddr_t gdb_ps_addr_t;
|
||
#endif
|
||
|
||
/* The next four routines are called by libthread_db to tell us to
|
||
stop and stop a particular process or lwp. Since GDB ensures that
|
||
these are all stopped by the time we call anything in thread_db,
|
||
these routines need to do nothing. */
|
||
|
||
/* Process stop. */
|
||
|
||
ps_err_e
|
||
ps_pstop (gdb_ps_prochandle_t ph)
|
||
{
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Process continue. */
|
||
|
||
ps_err_e
|
||
ps_pcontinue (gdb_ps_prochandle_t ph)
|
||
{
|
||
return PS_OK;
|
||
}
|
||
|
||
/* LWP stop. */
|
||
|
||
ps_err_e
|
||
ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid)
|
||
{
|
||
return PS_OK;
|
||
}
|
||
|
||
/* LWP continue. */
|
||
|
||
ps_err_e
|
||
ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid)
|
||
{
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */
|
||
|
||
ps_err_e
|
||
ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name,
|
||
const char *ld_symbol_name, gdb_ps_addr_t *ld_symbol_addr)
|
||
{
|
||
struct minimal_symbol *ms;
|
||
|
||
ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL);
|
||
if (!ms)
|
||
return PS_NOSYM;
|
||
|
||
*ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms);
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Common routine for reading and writing memory. */
|
||
|
||
static ps_err_e
|
||
rw_common (int dowrite, const struct ps_prochandle *ph, gdb_ps_addr_t addr,
|
||
char *buf, int size)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
if (is_thread (inferior_ptid) || !target_thread_alive (inferior_ptid))
|
||
{
|
||
/* It's either a thread or an LWP that isn't alive. Any live
|
||
LWP will do so use the first available.
|
||
|
||
NOTE: We don't need to call switch_to_thread; we're just
|
||
reading memory. */
|
||
inferior_ptid = procfs_first_available ();
|
||
}
|
||
|
||
#if defined (__sparcv9)
|
||
/* For Sparc64 cross Sparc32, make sure the address has not been
|
||
accidentally sign-extended (or whatever) to beyond 32 bits. */
|
||
if (bfd_get_arch_size (exec_bfd) == 32)
|
||
addr &= 0xffffffff;
|
||
#endif
|
||
|
||
while (size > 0)
|
||
{
|
||
int cc;
|
||
|
||
/* FIXME: passing 0 as attrib argument. */
|
||
if (target_has_execution)
|
||
cc = procfs_ops.to_xfer_memory (addr, buf, size,
|
||
dowrite, 0, &procfs_ops);
|
||
else
|
||
cc = orig_core_ops.to_xfer_memory (addr, buf, size,
|
||
dowrite, 0, &core_ops);
|
||
|
||
if (cc < 0)
|
||
{
|
||
if (dowrite == 0)
|
||
print_sys_errmsg ("rw_common (): read", errno);
|
||
else
|
||
print_sys_errmsg ("rw_common (): write", errno);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_ERR;
|
||
}
|
||
else if (cc == 0)
|
||
{
|
||
if (dowrite == 0)
|
||
warning ("rw_common (): unable to read at addr 0x%lx",
|
||
(long) addr);
|
||
else
|
||
warning ("rw_common (): unable to write at addr 0x%lx",
|
||
(long) addr);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_ERR;
|
||
}
|
||
|
||
size -= cc;
|
||
buf += cc;
|
||
}
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Copies SIZE bytes from target process .data segment to debugger memory. */
|
||
|
||
ps_err_e
|
||
ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
|
||
gdb_ps_read_buf_t buf, gdb_ps_size_t size)
|
||
{
|
||
return rw_common (0, ph, addr, buf, size);
|
||
}
|
||
|
||
/* Copies SIZE bytes from debugger memory .data segment to target process. */
|
||
|
||
ps_err_e
|
||
ps_pdwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
|
||
gdb_ps_write_buf_t buf, gdb_ps_size_t size)
|
||
{
|
||
return rw_common (1, ph, addr, (char *) buf, size);
|
||
}
|
||
|
||
/* Copies SIZE bytes from target process .text segment to debugger memory. */
|
||
|
||
ps_err_e
|
||
ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
|
||
gdb_ps_read_buf_t buf, gdb_ps_size_t size)
|
||
{
|
||
return rw_common (0, ph, addr, buf, size);
|
||
}
|
||
|
||
/* Copies SIZE bytes from debugger memory .text segment to target process. */
|
||
|
||
ps_err_e
|
||
ps_ptwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
|
||
gdb_ps_write_buf_t buf, gdb_ps_size_t size)
|
||
{
|
||
return rw_common (1, ph, addr, (char *) buf, size);
|
||
}
|
||
|
||
/* Get general-purpose registers for LWP. */
|
||
|
||
ps_err_e
|
||
ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
|
||
|
||
if (target_has_execution)
|
||
procfs_ops.to_fetch_registers (-1);
|
||
else
|
||
orig_core_ops.to_fetch_registers (-1);
|
||
fill_gregset ((gdb_gregset_t *) gregset, -1);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Set general-purpose registers for LWP. */
|
||
|
||
ps_err_e
|
||
ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
||
const prgregset_t gregset)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
|
||
|
||
supply_gregset ((gdb_gregset_t *) gregset);
|
||
if (target_has_execution)
|
||
procfs_ops.to_store_registers (-1);
|
||
else
|
||
orig_core_ops.to_store_registers (-1);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Log a message (sends to gdb_stderr). */
|
||
|
||
void
|
||
ps_plog (const char *fmt, ...)
|
||
{
|
||
va_list args;
|
||
|
||
va_start (args, fmt);
|
||
|
||
vfprintf_filtered (gdb_stderr, fmt, args);
|
||
}
|
||
|
||
/* Get size of extra register set. Currently a noop. */
|
||
|
||
ps_err_e
|
||
ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize)
|
||
{
|
||
#if 0
|
||
int lwp_fd;
|
||
int regsize;
|
||
ps_err_e val;
|
||
|
||
val = get_lwp_fd (ph, lwpid, &lwp_fd);
|
||
if (val != PS_OK)
|
||
return val;
|
||
|
||
if (ioctl (lwp_fd, PIOCGXREGSIZE, ®size))
|
||
{
|
||
if (errno == EINVAL)
|
||
return PS_NOFREGS; /* XXX Wrong code, but this is the closest
|
||
thing in proc_service.h */
|
||
|
||
print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno);
|
||
return PS_ERR;
|
||
}
|
||
#endif
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Get extra register set. Currently a noop. */
|
||
|
||
ps_err_e
|
||
ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
|
||
{
|
||
#if 0
|
||
int lwp_fd;
|
||
ps_err_e val;
|
||
|
||
val = get_lwp_fd (ph, lwpid, &lwp_fd);
|
||
if (val != PS_OK)
|
||
return val;
|
||
|
||
if (ioctl (lwp_fd, PIOCGXREG, xregset))
|
||
{
|
||
print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno);
|
||
return PS_ERR;
|
||
}
|
||
#endif
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Set extra register set. Currently a noop. */
|
||
|
||
ps_err_e
|
||
ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
|
||
{
|
||
#if 0
|
||
int lwp_fd;
|
||
ps_err_e val;
|
||
|
||
val = get_lwp_fd (ph, lwpid, &lwp_fd);
|
||
if (val != PS_OK)
|
||
return val;
|
||
|
||
if (ioctl (lwp_fd, PIOCSXREG, xregset))
|
||
{
|
||
print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno);
|
||
return PS_ERR;
|
||
}
|
||
#endif
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Get floating-point registers for LWP. */
|
||
|
||
ps_err_e
|
||
ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
||
prfpregset_t *fpregset)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
|
||
|
||
if (target_has_execution)
|
||
procfs_ops.to_fetch_registers (-1);
|
||
else
|
||
orig_core_ops.to_fetch_registers (-1);
|
||
fill_fpregset ((gdb_fpregset_t *) fpregset, -1);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
/* Set floating-point regs for LWP */
|
||
|
||
ps_err_e
|
||
ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
||
const prfpregset_t * fpregset)
|
||
{
|
||
struct cleanup *old_chain;
|
||
|
||
old_chain = save_inferior_ptid ();
|
||
|
||
inferior_ptid = BUILD_LWP (lwpid, PIDGET (inferior_ptid));
|
||
|
||
supply_fpregset ((gdb_fpregset_t *) fpregset);
|
||
if (target_has_execution)
|
||
procfs_ops.to_store_registers (-1);
|
||
else
|
||
orig_core_ops.to_store_registers (-1);
|
||
|
||
do_cleanups (old_chain);
|
||
|
||
return PS_OK;
|
||
}
|
||
|
||
#ifdef PR_MODEL_LP64
|
||
/* Identify process as 32-bit or 64-bit. At the moment we're using
|
||
BFD to do this. There might be a more Solaris-specific
|
||
(e.g. procfs) method, but this ought to work. */
|
||
|
||
ps_err_e
|
||
ps_pdmodel (gdb_ps_prochandle_t ph, int *data_model)
|
||
{
|
||
if (exec_bfd == 0)
|
||
*data_model = PR_MODEL_UNKNOWN;
|
||
else if (bfd_get_arch_size (exec_bfd) == 32)
|
||
*data_model = PR_MODEL_ILP32;
|
||
else
|
||
*data_model = PR_MODEL_LP64;
|
||
|
||
return PS_OK;
|
||
}
|
||
#endif /* PR_MODEL_LP64 */
|
||
|
||
#ifdef TM_I386SOL2_H
|
||
|
||
/* Reads the local descriptor table of a LWP. */
|
||
|
||
ps_err_e
|
||
ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid,
|
||
struct ssd *pldt)
|
||
{
|
||
/* NOTE: only used on Solaris, therefore OK to refer to procfs.c. */
|
||
extern struct ssd *procfs_find_LDT_entry (ptid_t);
|
||
struct ssd *ret;
|
||
|
||
/* FIXME: can't I get the process ID from the prochandle or
|
||
something? */
|
||
|
||
if (PIDGET (inferior_ptid) <= 0 || lwpid <= 0)
|
||
return PS_BADLID;
|
||
|
||
ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_ptid)));
|
||
if (ret)
|
||
{
|
||
memcpy (pldt, ret, sizeof (struct ssd));
|
||
return PS_OK;
|
||
}
|
||
else
|
||
/* LDT not found. */
|
||
return PS_ERR;
|
||
}
|
||
#endif /* TM_I386SOL2_H */
|
||
|
||
|
||
/* Convert PTID to printable form. */
|
||
|
||
char *
|
||
solaris_pid_to_str (ptid_t ptid)
|
||
{
|
||
static char buf[100];
|
||
|
||
/* In case init failed to resolve the libthread_db library. */
|
||
if (!procfs_suppress_run)
|
||
return procfs_pid_to_str (ptid);
|
||
|
||
if (is_thread (ptid))
|
||
{
|
||
ptid_t lwp;
|
||
|
||
lwp = thread_to_lwp (ptid, -2);
|
||
|
||
if (PIDGET (lwp) == -1)
|
||
sprintf (buf, "Thread %ld (defunct)", GET_THREAD (ptid));
|
||
else if (PIDGET (lwp) != -2)
|
||
sprintf (buf, "Thread %ld (LWP %ld)",
|
||
GET_THREAD (ptid), GET_LWP (lwp));
|
||
else
|
||
sprintf (buf, "Thread %ld ", GET_THREAD (ptid));
|
||
}
|
||
else if (GET_LWP (ptid) != 0)
|
||
sprintf (buf, "LWP %ld ", GET_LWP (ptid));
|
||
else
|
||
sprintf (buf, "process %d ", PIDGET (ptid));
|
||
|
||
return buf;
|
||
}
|
||
|
||
|
||
/* Worker bee for find_new_threads. Callback function that gets
|
||
called once per user-level thread (i.e. not for LWP's). */
|
||
|
||
static int
|
||
sol_find_new_threads_callback (const td_thrhandle_t *th, void *ignored)
|
||
{
|
||
td_err_e retval;
|
||
td_thrinfo_t ti;
|
||
ptid_t ptid;
|
||
|
||
retval = p_td_thr_get_info (th, &ti);
|
||
if (retval != TD_OK)
|
||
return -1;
|
||
|
||
ptid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_ptid));
|
||
if (!in_thread_list (ptid))
|
||
add_thread (ptid);
|
||
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
sol_find_new_threads (void)
|
||
{
|
||
/* Don't do anything if init failed to resolve the libthread_db
|
||
library. */
|
||
if (!procfs_suppress_run)
|
||
return;
|
||
|
||
if (PIDGET (inferior_ptid) == -1)
|
||
{
|
||
printf_filtered ("No process.\n");
|
||
return;
|
||
}
|
||
|
||
/* First Find any new LWP's. */
|
||
procfs_ops.to_find_new_threads ();
|
||
|
||
/* Then find any new user-level threads. */
|
||
p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0,
|
||
TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
|
||
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
|
||
}
|
||
|
||
static void
|
||
sol_core_open (char *filename, int from_tty)
|
||
{
|
||
orig_core_ops.to_open (filename, from_tty);
|
||
}
|
||
|
||
static void
|
||
sol_core_close (int quitting)
|
||
{
|
||
orig_core_ops.to_close (quitting);
|
||
}
|
||
|
||
static void
|
||
sol_core_detach (char *args, int from_tty)
|
||
{
|
||
unpush_target (&core_ops);
|
||
orig_core_ops.to_detach (args, from_tty);
|
||
}
|
||
|
||
static void
|
||
sol_core_files_info (struct target_ops *t)
|
||
{
|
||
orig_core_ops.to_files_info (t);
|
||
}
|
||
|
||
/* Worker bee for the "info sol-thread" command. This is a callback
|
||
function that gets called once for each Solaris user-level thread
|
||
(i.e. not for LWPs) in the inferior. Print anything interesting
|
||
that we can think of. */
|
||
|
||
static int
|
||
info_cb (const td_thrhandle_t *th, void *s)
|
||
{
|
||
td_err_e ret;
|
||
td_thrinfo_t ti;
|
||
|
||
ret = p_td_thr_get_info (th, &ti);
|
||
if (ret == TD_OK)
|
||
{
|
||
printf_filtered ("%s thread #%d, lwp %d, ",
|
||
ti.ti_type == TD_THR_SYSTEM ? "system" : "user ",
|
||
ti.ti_tid, ti.ti_lid);
|
||
switch (ti.ti_state)
|
||
{
|
||
default:
|
||
case TD_THR_UNKNOWN:
|
||
printf_filtered ("<unknown state>");
|
||
break;
|
||
case TD_THR_STOPPED:
|
||
printf_filtered ("(stopped)");
|
||
break;
|
||
case TD_THR_RUN:
|
||
printf_filtered ("(run) ");
|
||
break;
|
||
case TD_THR_ACTIVE:
|
||
printf_filtered ("(active) ");
|
||
break;
|
||
case TD_THR_ZOMBIE:
|
||
printf_filtered ("(zombie) ");
|
||
break;
|
||
case TD_THR_SLEEP:
|
||
printf_filtered ("(asleep) ");
|
||
break;
|
||
case TD_THR_STOPPED_ASLEEP:
|
||
printf_filtered ("(stopped asleep)");
|
||
break;
|
||
}
|
||
/* Print thr_create start function. */
|
||
if (ti.ti_startfunc != 0)
|
||
{
|
||
struct minimal_symbol *msym;
|
||
msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc);
|
||
if (msym)
|
||
printf_filtered (" startfunc: %s\n",
|
||
DEPRECATED_SYMBOL_NAME (msym));
|
||
else
|
||
printf_filtered (" startfunc: 0x%s\n", paddr (ti.ti_startfunc));
|
||
}
|
||
|
||
/* If thread is asleep, print function that went to sleep. */
|
||
if (ti.ti_state == TD_THR_SLEEP)
|
||
{
|
||
struct minimal_symbol *msym;
|
||
msym = lookup_minimal_symbol_by_pc (ti.ti_pc);
|
||
if (msym)
|
||
printf_filtered (" - Sleep func: %s\n",
|
||
DEPRECATED_SYMBOL_NAME (msym));
|
||
else
|
||
printf_filtered (" - Sleep func: 0x%s\n", paddr (ti.ti_startfunc));
|
||
}
|
||
|
||
/* Wrap up line, if necessary. */
|
||
if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0)
|
||
printf_filtered ("\n"); /* don't you hate counting newlines? */
|
||
}
|
||
else
|
||
warning ("info sol-thread: failed to get info for thread.");
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* List some state about each Solaris user-level thread in the
|
||
inferior. */
|
||
|
||
static void
|
||
info_solthreads (char *args, int from_tty)
|
||
{
|
||
p_td_ta_thr_iter (main_ta, info_cb, args,
|
||
TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
|
||
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
|
||
}
|
||
|
||
static int
|
||
sol_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
|
||
int, int, int, void *),
|
||
void *data)
|
||
{
|
||
return procfs_ops.to_find_memory_regions (func, data);
|
||
}
|
||
|
||
static char *
|
||
sol_make_note_section (bfd *obfd, int *note_size)
|
||
{
|
||
return procfs_ops.to_make_corefile_notes (obfd, note_size);
|
||
}
|
||
|
||
static int
|
||
ignore (CORE_ADDR addr, char *contents)
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
init_sol_thread_ops (void)
|
||
{
|
||
sol_thread_ops.to_shortname = "solaris-threads";
|
||
sol_thread_ops.to_longname = "Solaris threads and pthread.";
|
||
sol_thread_ops.to_doc = "Solaris threads and pthread support.";
|
||
sol_thread_ops.to_open = sol_thread_open;
|
||
sol_thread_ops.to_attach = sol_thread_attach;
|
||
sol_thread_ops.to_detach = sol_thread_detach;
|
||
sol_thread_ops.to_resume = sol_thread_resume;
|
||
sol_thread_ops.to_wait = sol_thread_wait;
|
||
sol_thread_ops.to_fetch_registers = sol_thread_fetch_registers;
|
||
sol_thread_ops.to_store_registers = sol_thread_store_registers;
|
||
sol_thread_ops.to_prepare_to_store = sol_thread_prepare_to_store;
|
||
sol_thread_ops.to_xfer_memory = sol_thread_xfer_memory;
|
||
sol_thread_ops.to_xfer_partial = sol_thread_xfer_partial;
|
||
sol_thread_ops.to_files_info = sol_thread_files_info;
|
||
sol_thread_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
||
sol_thread_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
||
sol_thread_ops.to_terminal_init = terminal_init_inferior;
|
||
sol_thread_ops.to_terminal_inferior = terminal_inferior;
|
||
sol_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
||
sol_thread_ops.to_terminal_ours = terminal_ours;
|
||
sol_thread_ops.to_terminal_save_ours = terminal_save_ours;
|
||
sol_thread_ops.to_terminal_info = child_terminal_info;
|
||
sol_thread_ops.to_kill = sol_thread_kill_inferior;
|
||
sol_thread_ops.to_create_inferior = sol_thread_create_inferior;
|
||
sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior;
|
||
sol_thread_ops.to_can_run = sol_thread_can_run;
|
||
sol_thread_ops.to_notice_signals = sol_thread_notice_signals;
|
||
sol_thread_ops.to_thread_alive = sol_thread_alive;
|
||
sol_thread_ops.to_pid_to_str = solaris_pid_to_str;
|
||
sol_thread_ops.to_find_new_threads = sol_find_new_threads;
|
||
sol_thread_ops.to_stop = sol_thread_stop;
|
||
sol_thread_ops.to_stratum = process_stratum;
|
||
sol_thread_ops.to_has_all_memory = 1;
|
||
sol_thread_ops.to_has_memory = 1;
|
||
sol_thread_ops.to_has_stack = 1;
|
||
sol_thread_ops.to_has_registers = 1;
|
||
sol_thread_ops.to_has_execution = 1;
|
||
sol_thread_ops.to_has_thread_control = tc_none;
|
||
sol_thread_ops.to_find_memory_regions = sol_find_memory_regions;
|
||
sol_thread_ops.to_make_corefile_notes = sol_make_note_section;
|
||
sol_thread_ops.to_magic = OPS_MAGIC;
|
||
}
|
||
|
||
static void
|
||
init_sol_core_ops (void)
|
||
{
|
||
sol_core_ops.to_shortname = "solaris-core";
|
||
sol_core_ops.to_longname = "Solaris core threads and pthread.";
|
||
sol_core_ops.to_doc = "Solaris threads and pthread support for core files.";
|
||
sol_core_ops.to_open = sol_core_open;
|
||
sol_core_ops.to_close = sol_core_close;
|
||
sol_core_ops.to_attach = sol_thread_attach;
|
||
sol_core_ops.to_detach = sol_core_detach;
|
||
sol_core_ops.to_fetch_registers = sol_thread_fetch_registers;
|
||
sol_core_ops.to_xfer_memory = sol_thread_xfer_memory;
|
||
sol_core_ops.to_xfer_partial = sol_thread_xfer_partial;
|
||
sol_core_ops.to_files_info = sol_core_files_info;
|
||
sol_core_ops.to_insert_breakpoint = ignore;
|
||
sol_core_ops.to_remove_breakpoint = ignore;
|
||
sol_core_ops.to_create_inferior = sol_thread_create_inferior;
|
||
sol_core_ops.to_stratum = core_stratum;
|
||
sol_core_ops.to_has_memory = 1;
|
||
sol_core_ops.to_has_stack = 1;
|
||
sol_core_ops.to_has_registers = 1;
|
||
sol_core_ops.to_has_thread_control = tc_none;
|
||
sol_core_ops.to_thread_alive = sol_thread_alive;
|
||
sol_core_ops.to_pid_to_str = solaris_pid_to_str;
|
||
/* On Solaris/x86, when debugging a threaded core file from process
|
||
<n>, the following causes "info threads" to produce "procfs:
|
||
couldn't find pid <n> in procinfo list" where <n> is the pid of
|
||
the process that produced the core file. Disable it for now. */
|
||
#if 0
|
||
sol_core_ops.to_find_new_threads = sol_find_new_threads;
|
||
#endif
|
||
sol_core_ops.to_magic = OPS_MAGIC;
|
||
}
|
||
|
||
/* We suppress the call to add_target of core_ops in corelow because
|
||
if there are two targets in the stratum core_stratum,
|
||
find_core_target won't know which one to return. See corelow.c for
|
||
an additonal comment on coreops_suppress_target. */
|
||
int coreops_suppress_target = 1;
|
||
|
||
void
|
||
_initialize_sol_thread (void)
|
||
{
|
||
void *dlhandle;
|
||
|
||
init_sol_thread_ops ();
|
||
init_sol_core_ops ();
|
||
|
||
dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW);
|
||
if (!dlhandle)
|
||
goto die;
|
||
|
||
#define resolve(X) \
|
||
if (!(p_##X = dlsym (dlhandle, #X))) \
|
||
goto die;
|
||
|
||
resolve (td_log);
|
||
resolve (td_ta_new);
|
||
resolve (td_ta_delete);
|
||
resolve (td_init);
|
||
resolve (td_ta_get_ph);
|
||
resolve (td_ta_get_nthreads);
|
||
resolve (td_ta_tsd_iter);
|
||
resolve (td_ta_thr_iter);
|
||
resolve (td_thr_validate);
|
||
resolve (td_thr_tsd);
|
||
resolve (td_thr_get_info);
|
||
resolve (td_thr_getfpregs);
|
||
resolve (td_thr_getxregsize);
|
||
resolve (td_thr_getxregs);
|
||
resolve (td_thr_sigsetmask);
|
||
resolve (td_thr_setprio);
|
||
resolve (td_thr_setsigpending);
|
||
resolve (td_thr_setfpregs);
|
||
resolve (td_thr_setxregs);
|
||
resolve (td_ta_map_id2thr);
|
||
resolve (td_ta_map_lwp2thr);
|
||
resolve (td_thr_getgregs);
|
||
resolve (td_thr_setgregs);
|
||
|
||
add_target (&sol_thread_ops);
|
||
|
||
procfs_suppress_run = 1;
|
||
|
||
add_cmd ("sol-threads", class_maintenance, info_solthreads,
|
||
"Show info on Solaris user threads.\n", &maintenanceinfolist);
|
||
|
||
memcpy (&orig_core_ops, &core_ops, sizeof (struct target_ops));
|
||
memcpy (&core_ops, &sol_core_ops, sizeof (struct target_ops));
|
||
add_target (&core_ops);
|
||
|
||
/* Hook into new_objfile notification. */
|
||
target_new_objfile_chain = deprecated_target_new_objfile_hook;
|
||
deprecated_target_new_objfile_hook = sol_thread_new_objfile;
|
||
return;
|
||
|
||
die:
|
||
fprintf_unfiltered (gdb_stderr, "\
|
||
[GDB will not be able to debug user-mode threads: %s]\n", dlerror ());
|
||
|
||
if (dlhandle)
|
||
dlclose (dlhandle);
|
||
|
||
/* Allow the user to debug non-threaded core files. */
|
||
add_target (&core_ops);
|
||
|
||
return;
|
||
}
|