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fe5ddfc3ee
FreeBSD kernels have reported exec events via the PL_FLAG_EXEC flag since 8.2 release. The most recent release that did not support this flag is 7.4 released in November of 2011. Note that the FreeBSD native target already assumed that PL_FLAG_SCE and PL_FLAG_SCX were always supported on systems supporting PT_LWPINFO, but those flags were added at the same time as PL_FLAG_EXEC. Building the native target on a system without PL_FLAG_EXEC would have failed to build before this change already as a result. gdb/ChangeLog: * fbsd-nat.c (fbsd_nat_target::wait): Always check for PL_FLAG_EXEC. (fbsd_nat_target::insert_exec_catchpoint) (fbsd_nat_target::remove_exec_catchpoint): Always define. * fbsd-nat.h (fbsd_nat_target::insert_exec_catchpoint) (fbsd_nat_target::remove_exec_catchpoint): Always declare.
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
/* Native-dependent code for FreeBSD.
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Copyright (C) 2004-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef FBSD_NAT_H
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#define FBSD_NAT_H
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#include "inf-ptrace.h"
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#include <osreldate.h>
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#include <sys/proc.h>
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/* FreeBSD kernels 11.3 and later report valid si_code values for
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SIGTRAP on all architectures. Older FreeBSD kernels that supported
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TRAP_BRKPT did not report valid values for MIPS and sparc64. Even
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older kernels without TRAP_BRKPT support did not report valid
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values on any architecture. */
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#if (__FreeBSD_kernel_version >= 1102502) || (__FreeBSD_version >= 1102502)
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# define USE_SIGTRAP_SIGINFO
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#elif defined(TRAP_BRKPT)
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# if !defined(__mips__) && !defined(__sparc64__)
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# define USE_SIGTRAP_SIGINFO
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# endif
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#endif
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/* A prototype FreeBSD target. */
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class fbsd_nat_target : public inf_ptrace_target
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{
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public:
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char *pid_to_exec_file (int pid) override;
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int find_memory_regions (find_memory_region_ftype func, void *data) override;
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bool info_proc (const char *, enum info_proc_what) override;
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enum target_xfer_status xfer_partial (enum target_object object,
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const char *annex,
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gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, ULONGEST len,
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ULONGEST *xfered_len) override;
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bool thread_alive (ptid_t ptid) override;
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std::string pid_to_str (ptid_t) override;
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#ifdef HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME
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const char *thread_name (struct thread_info *) override;
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#endif
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void update_thread_list () override;
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thread_control_capabilities get_thread_control_capabilities () override
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{ return tc_schedlock; }
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void resume (ptid_t, int, enum gdb_signal) override;
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ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
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void post_startup_inferior (ptid_t) override;
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void post_attach (int) override;
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#ifdef USE_SIGTRAP_SIGINFO
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bool supports_stopped_by_sw_breakpoint () override;
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bool stopped_by_sw_breakpoint () override;
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#endif
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#ifdef TDP_RFPPWAIT
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bool follow_fork (bool, bool) override;
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int insert_fork_catchpoint (int) override;
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int remove_fork_catchpoint (int) override;
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int insert_vfork_catchpoint (int) override;
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int remove_vfork_catchpoint (int) override;
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#endif
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int insert_exec_catchpoint (int) override;
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int remove_exec_catchpoint (int) override;
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#ifdef HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE
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int set_syscall_catchpoint (int, bool, int, gdb::array_view<const int>)
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override;
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#endif
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bool supports_multi_process () override;
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};
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#endif /* fbsd-nat.h */
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