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58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* Get a thread's general register set.
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Copyright (C) 1999-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "thread_dbP.h"
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td_err_e
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td_thr_getgregs (const td_thrhandle_t *th, prgregset_t regset)
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{
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psaddr_t cancelhandling, tid;
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td_err_e err;
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LOG ("td_thr_getgregs");
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if (th->th_unique == 0)
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/* Special case for the main thread before initialization. */
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return ps_lgetregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
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regset) != PS_OK ? TD_ERR : TD_OK;
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/* We have to get the state and the PID for this thread. */
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err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread,
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cancelhandling, 0);
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if (err != TD_OK)
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return err;
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/* If the thread already terminated we return all zeroes. */
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if (((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK)
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memset (regset, '\0', sizeof (*regset));
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/* Otherwise get the register content through the callback. */
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else
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{
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err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0);
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if (err != TD_OK)
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return err;
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if (ps_lgetregs (th->th_ta_p->ph, (uintptr_t) tid, regset) != PS_OK)
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return TD_ERR;
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}
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return TD_OK;
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}
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