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/* Public API to SFrame stacktracer.
Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of libsframest.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _SFRAME_BACKTRACE_API_H
#define _SFRAME_BACKTRACE_API_H
#ifdef __cplusplus
extern "C"
{
#endif
enum sframe_bt_errcode
{
SFRAME_BT_OK,
SFRAME_BT_ERR_BAD_SFSTATE,
SFRAME_BT_ERR_ARG,
SFRAME_BT_ERR_MALLOC,
SFRAME_BT_ERR_REALLOC,
SFRAME_BT_ERR_OPEN,
SFRAME_BT_ERR_READLINK,
SFRAME_BT_ERR_LSEEK,
SFRAME_BT_ERR_READ,
SFRAME_BT_ERR_GETCONTEXT,
SFRAME_BT_ERR_DECODE,
SFRAME_BT_ERR_CFA_OFFSET,
SFRAME_BT_ERR_FRE_INVAL,
};
#define SFRAME_BT_ERR ((int) -1)
#define NUM_OF_DSOS 32 /* Number of DSOs. */
#define ENUM_ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
/* Get the stacktrace of the calling program by storing return addresses
in BUFFER. The SIZE argument specifies the maximum number of addresses
that can be stored in the buffer. Return the number of return addresses
collected or -1 if there is any error. */
extern int sframe_stacktrace (void **buffer, int size, int *errp);
extern const char *sframe_bt_errmsg (enum sframe_bt_errcode ecode);
extern int sframe_bt_ret_set_errno (int *errp, int error);
extern int sframe_bt_errno (const int *errp);
#ifdef __cplusplus
}
#endif
#endif /* _SFRAME_BACKTRACE_API_H */
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