binutils-gdb/gdb/fbsd-tdep.h
John Baldwin ed810cc7d3 Implement the skip_solib_resolver gdbarch hook for FreeBSD architectures.
The ELF runtime linker on all FreeBSD architectures uses the
"_rtld_bind" entry point for unresolved PTL entries.  FreeBSD/mips has
an additional entry point called "_mips_rtld_bind".

gdb/ChangeLog:

	* fbsd-tdep.c (fbsd_skip_solib_resolver): New function.
	(fbsd_init_abi): Install gdbarch "skip_solib_resolver" method.
	* fbsd-tdep.h (fbsd_skip_solib_resolver): New prototype.
	* mips-fbsd-tdep.c (mips_fbsd_skip_solib_resolver): New function.
	(mips_fbsd_init_abi): Install gdbarch "skip_solib_resolver"
	method.
2020-07-20 09:10:18 -07:00

80 lines
3.1 KiB
C

/* Target-dependent code for FreeBSD, architecture independent.
Copyright (C) 2009-2020 Free Software Foundation, Inc.
This file is part of GDB.
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 FBSD_TDEP_H
#define FBSD_TDEP_H
extern void fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch);
/* Output the header for "info proc files". */
extern void fbsd_info_proc_files_header ();
/* Output description of a single file descriptor for "info proc
files". The KF_TYPE, KF_FD, KF_FLAGS, KF_OFFSET, KF_VNODE_TYPE,
KF_SOCK_DOMAIN, KF_SOCK_TYPE, and KF_SOCK_PROTOCOL parameters
should contain the value of the corresponding fields in a 'struct
kinfo_file'. The KF_SA_LOCAL, KF_SA_PEER, and KF_PATH parameters
should contain pointers to the corresponding fields in a 'struct
kinfo_file'. */
extern void fbsd_info_proc_files_entry (int kf_type, int kf_fd, int kf_flags,
LONGEST kf_offset, int kf_vnode_type,
int kf_sock_domain, int kf_sock_type,
int kf_sock_protocol,
const void *kf_sa_local,
const void *kf_sa_peer,
const void *kf_path);
/* Output the header for "info proc mappings". ADDR_BIT is the size
of a virtual address in bits. */
extern void fbsd_info_proc_mappings_header (int addr_bit);
/* Output description of a single memory range for "info proc
mappings". ADDR_BIT is the size of a virtual address in bits. The
KVE_START, KVE_END, KVE_OFFSET, KVE_FLAGS, and KVE_PROTECTION
parameters should contain the value of the corresponding fields in
a 'struct kinfo_vmentry'. The KVE_PATH parameter should contain a
pointer to the 'kve_path' field in a 'struct kinfo_vmentry'. */
extern void fbsd_info_proc_mappings_entry (int addr_bit, ULONGEST kve_start,
ULONGEST kve_end,
ULONGEST kve_offset,
int kve_flags, int kve_protection,
const void *kve_path);
/* Helper function to fetch the address of a thread-local variable.
DTV_ADDR is the base address of the thread's dtv array. LM_ADDR is
the address of the link_map structure for the associated object
file. OFFSET is the offset of the variable in the object file's
thread-local variable block. */
extern CORE_ADDR fbsd_get_thread_local_address (struct gdbarch *gdbarch,
CORE_ADDR dtv_addr,
CORE_ADDR lm_addr,
CORE_ADDR offset);
/* Implement the "skip_solib_resolver" gdbarch method. */
extern CORE_ADDR fbsd_skip_solib_resolver (struct gdbarch *gdbarch,
CORE_ADDR pc);
#endif /* fbsd-tdep.h */