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65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* Attach to target process.
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Copyright (C) 1999-2020 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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<https://www.gnu.org/licenses/>. */
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <version.h>
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#include "thread_dbP.h"
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/* Datatype for the list of known thread agents. Normally there will
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be exactly one so we don't spend much though on making it fast. */
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LIST_HEAD (__td_agent_list);
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td_err_e
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td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
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{
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psaddr_t versaddr;
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char versbuf[sizeof (VERSION)];
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LOG ("td_ta_new");
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/* Check whether the versions match. */
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if (td_lookup (ps, SYM_nptl_version, &versaddr) != PS_OK)
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return TD_NOLIBTHREAD;
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if (ps_pdread (ps, versaddr, versbuf, sizeof (versbuf)) != PS_OK)
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return TD_ERR;
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if (memcmp (versbuf, VERSION, sizeof VERSION) != 0)
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/* Not the right version. */
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return TD_VERSION;
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/* Fill in the appropriate information. */
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*ta = (td_thragent_t *) calloc (1, sizeof (td_thragent_t));
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if (*ta == NULL)
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return TD_MALLOC;
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/* Store the proc handle which we will pass to the callback functions
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back into the debugger. */
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(*ta)->ph = ps;
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/* Now add the new agent descriptor to the list. */
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list_add (&(*ta)->list, &__td_agent_list);
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return TD_OK;
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}
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