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/* sframe-state.h - The SFrame state for stacktracing.
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_STATE_H
#define SFRAME_STATE_H
#include "config.h"
#include <link.h>
#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <stdbool.h>
#include <assert.h>
#include <execinfo.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <ucontext.h>
#include <stdarg.h>
#include "ansidecl.h"
#include "sframe-api.h"
#include "sframe-stacktrace-api.h"
#include "sframe-stacktrace-regs.h"
#ifndef PT_SFRAME
#define PT_SFRAME 0x6474e554 /* FIXME. */
#endif
/* SFrame decode data for the main module or a DSO. */
struct sframe_stinfo
{
char *sfdd_data; /* SFrame decode data. */
int sfdd_data_size; /* SFrame decode data size. */
uint64_t sfdd_text_vma; /* Text segment's virtual address. */
int sfdd_text_size; /* Text segment's size. */
uint64_t sfdd_sframe_vma; /* SFrame segment's virtual address. */
sframe_decoder_ctx *sfdd_sframe_ctx; /* SFrame decoder context. */
};
/* List that holds SFrame info for the shared libraries. */
struct sframe_stinfo_list
{
int alloced; /* Entries allocated. */
int used; /* Entries used. */
struct sframe_stinfo *entry; /* DSO's decode data. */
};
/* Data that's passed through sframe_callback. */
struct sframe_state
{
int sui_fd; /* File descriptor. */
struct sframe_stinfo sui_ctx; /* The decode data. */
struct sframe_stinfo_list sui_dsos; /* The DSO list. */
};
void sframe_unwind_init_debug (void);
int sframe_callback (struct dl_phdr_info *info,
size_t size ATTRIBUTE_UNUSED,
void *data);
void sframe_update_ctx (struct sframe_state *sf, uint64_t raddr,
sframe_decoder_ctx **ctx, uint64_t *cfi_vma);
sframe_decoder_ctx *sframe_load_ctx (struct sframe_state *sf, uint64_t raddr);
struct sframe_stinfo *
sframe_find_context (struct sframe_state *sf, uint64_t addr);
void sframe_free_cfi (struct sframe_state *sf);
#endif /* SFRAME_STATE_H. */
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