diff options
Diffstat (limited to 'gnu/usr.bin/gdb/kgdb/trgt.c')
| -rw-r--r-- | gnu/usr.bin/gdb/kgdb/trgt.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/gnu/usr.bin/gdb/kgdb/trgt.c b/gnu/usr.bin/gdb/kgdb/trgt.c new file mode 100644 index 0000000..5c889eb --- /dev/null +++ b/gnu/usr.bin/gdb/kgdb/trgt.c @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2004 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <kvm.h> + +#include "kgdb.h" + +#include <defs.h> +#include <gdbthread.h> +#include <inferior.h> +#include <target.h> + +static struct target_ops kgdb_trgt_ops; + +static char * +kgdb_trgt_extra_thread_info(struct thread_info *ti __unused) +{ + return (NULL); +} + +static void +kgdb_trgt_find_new_threads(void) +{ +} + +static char * +kgdb_trgt_pid_to_str(ptid_t ptid) +{ + static char buf[16]; + + snprintf(buf, sizeof(buf), "TID %d", ptid_get_pid(ptid)); + return (buf); +} + +static int +kgdb_trgt_thread_alive(ptid_t ptid) +{ + return (kgdb_thr_lookup(ptid_get_pid(ptid)) != NULL); +} + +static int +kgdb_trgt_xfer_memory(CORE_ADDR memaddr, char *myaddr, int len, int write, + struct mem_attrib *attrib __unused, struct target_ops *target __unused) +{ + if (len == 0) + return (0); + + if (!write) + return (kvm_read(kvm, memaddr, myaddr, len)); + else + return (kvm_write(kvm, memaddr, myaddr, len)); +} + +void +kgdb_target(void) +{ + struct kthr *kt; + struct thread_info *ti; + + kgdb_trgt_ops.to_magic = OPS_MAGIC; + kgdb_trgt_ops.to_shortname = "kernel"; + kgdb_trgt_ops.to_longname = "kernel core files."; + kgdb_trgt_ops.to_doc = "Kernel core files."; + kgdb_trgt_ops.to_stratum = thread_stratum; + kgdb_trgt_ops.to_has_memory = 1; + kgdb_trgt_ops.to_has_registers = 1; + kgdb_trgt_ops.to_has_stack = 1; + + kgdb_trgt_ops.to_extra_thread_info = kgdb_trgt_extra_thread_info; + kgdb_trgt_ops.to_fetch_registers = kgdb_trgt_fetch_registers; + kgdb_trgt_ops.to_find_new_threads = kgdb_trgt_find_new_threads; + kgdb_trgt_ops.to_pid_to_str = kgdb_trgt_pid_to_str; + kgdb_trgt_ops.to_store_registers = kgdb_trgt_store_registers; + kgdb_trgt_ops.to_thread_alive = kgdb_trgt_thread_alive; + kgdb_trgt_ops.to_xfer_memory = kgdb_trgt_xfer_memory; + add_target(&kgdb_trgt_ops); + push_target(&kgdb_trgt_ops); + + kt = kgdb_thr_first(); + while (kt != NULL) { + ti = add_thread(ptid_build(kt->tid, 0, 0)); + kt = kgdb_thr_next(kt); + } + inferior_ptid = ptid_build(curkthr->tid, 0, 0); +} |
