diff options
| -rw-r--r-- | gdb/ChangeLog | 13 | ||||
| -rw-r--r-- | gdb/NEWS | 4 | ||||
| -rw-r--r-- | gdb/doc/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 23 | ||||
| -rw-r--r-- | gdb/remote.c | 35 | ||||
| -rw-r--r-- | gdb/target.h | 7 |
6 files changed, 88 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ddedf87..8f4c86a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,18 @@ 2015-04-17 Gary Benson <gbenson@redhat.com> + * target.h (TARGET_OBJECT_EXEC_FILE): New enum value. + * remote.c (PACKET_qXfer_exec_file): Likewise. + (remote_protocol_features): Register the + "qXfer:exec-file:read" feature. + (remote_xfer_partial): Handle TARGET_OBJECT_EXEC_FILE. + (remote_pid_to_exec_file): New function. + (init_remote_ops): Initialize to_pid_to_exec_file. + (_initialize_remote): Register new "set/show remote + pid-to-exec-file-packet" command. + * NEWS: Announce new qXfer:exec-file:read packet. + +2015-04-17 Gary Benson <gbenson@redhat.com> + * nat/linux-procfs.h (linux_proc_pid_to_exec_file): New declaration. * nat/linux-procfs.c (linux_proc_pid_to_exec_file): @@ -106,6 +106,10 @@ hwbreak stop reason vFile:fstat: Return information about files on the remote system. +qXfer:exec-file:read + Return the full absolute name of the file that was executed to + create a process running on the remote system. + * The info record command now shows the recording format and the branch tracing configuration for the current thread when using the btrace record target. diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index f10bdf5..1bb7f41 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,5 +1,12 @@ 2015-04-17 Gary Benson <gbenson@redhat.com> + * gdb.texinfo (Remote Configuration): Document the "set/show + remote pid-to-exec-file-packet" command. + (General Query Packets): Document the qXfer:exec-file:read + qSupported features. Document the qXfer:exec-file:read packet. + +2015-04-17 Gary Benson <gbenson@redhat.com> + * gdb.texinfo (set sysroot): Document that "set sysroot" also applies to executable paths if supplied to GDB as absolute. diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 7f765d0..964f9c4 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -19791,6 +19791,10 @@ are: @tab @code{Z4} @tab @code{awatch} +@item @code{pid-to-exec-file} +@tab @code{qXfer:exec-file:read} +@tab @code{attach}, @code{run} + @item @code{target-features} @tab @code{qXfer:features:read} @tab @code{set architecture} @@ -36016,6 +36020,11 @@ These are the currently defined stub features and their properties: @tab @samp{-} @tab Yes +@item @samp{qXfer:exec-file:read} +@tab No +@tab @samp{-} +@tab Yes + @item @samp{qXfer:features:read} @tab No @tab @samp{-} @@ -36219,6 +36228,10 @@ packet (@pxref{qXfer btrace read}). The remote stub understands the @samp{qXfer:btrace-conf:read} packet (@pxref{qXfer btrace-conf read}). +@item qXfer:exec-file:read +The remote stub understands the @samp{qXfer:exec-file:read} packet +(@pxref{qXfer executable filename read}). + @item qXfer:features:read The remote stub understands the @samp{qXfer:features:read} packet (@pxref{qXfer target description read}). @@ -36533,6 +36546,16 @@ Return a description of the current branch trace configuration. This packet is not probed by default; the remote stub must request it by supplying an appropriate @samp{qSupported} response (@pxref{qSupported}). +@item qXfer:exec-file:read:@var{annex}:@var{offset},@var{length} +@anchor{qXfer executable filename read} +Return the full absolute name of the file that was executed to create +a process running on the remote system. The annex specifies the +numeric process ID of the process to query, encoded as a hexadecimal +number. + +This packet is not probed by default; the remote stub must request it, +by supplying an appropriate @samp{qSupported} response (@pxref{qSupported}). + @item qXfer:features:read:@var{annex}:@var{offset},@var{length} @anchor{qXfer target description read} Access the @dfn{target description}. @xref{Target Descriptions}. The diff --git a/gdb/remote.c b/gdb/remote.c index dcd24c4..a4b82e8 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -1252,6 +1252,7 @@ enum { PACKET_vFile_fstat, PACKET_qXfer_auxv, PACKET_qXfer_features, + PACKET_qXfer_exec_file, PACKET_qXfer_libraries, PACKET_qXfer_libraries_svr4, PACKET_qXfer_memory_map, @@ -3963,6 +3964,8 @@ static const struct protocol_feature remote_protocol_features[] = { { "PacketSize", PACKET_DISABLE, remote_packet_size, -1 }, { "qXfer:auxv:read", PACKET_DISABLE, remote_supported_packet, PACKET_qXfer_auxv }, + { "qXfer:exec-file:read", PACKET_DISABLE, remote_supported_packet, + PACKET_qXfer_exec_file }, { "qXfer:features:read", PACKET_DISABLE, remote_supported_packet, PACKET_qXfer_features }, { "qXfer:libraries:read", PACKET_DISABLE, remote_supported_packet, @@ -9035,6 +9038,11 @@ remote_xfer_partial (struct target_ops *ops, enum target_object object, len, xfered_len, &remote_protocol_packets[PACKET_qXfer_btrace_conf]); + case TARGET_OBJECT_EXEC_FILE: + return remote_read_qxfer (ops, "exec-file", annex, readbuf, offset, + len, xfered_len, + &remote_protocol_packets[PACKET_qXfer_exec_file]); + default: return TARGET_XFER_E_IO; } @@ -11642,6 +11650,29 @@ remote_load (struct target_ops *self, const char *name, int from_tty) generic_load (name, from_tty); } +/* Accepts an integer PID; returns a string representing a file that + can be opened on the remote side to get the symbols for the child + process. Returns NULL if the operation is not supported. */ + +static char * +remote_pid_to_exec_file (struct target_ops *self, int pid) +{ + static char *filename = NULL; + char annex[9]; + + if (packet_support (PACKET_qXfer_exec_file) != PACKET_ENABLE) + return NULL; + + if (filename != NULL) + xfree (filename); + + xsnprintf (annex, sizeof (annex), "%x", pid); + filename = target_read_stralloc (¤t_target, + TARGET_OBJECT_EXEC_FILE, annex); + + return filename; +} + static void init_remote_ops (void) { @@ -11691,6 +11722,7 @@ Specify the serial device it is connected to\n\ remote_ops.to_stop = remote_stop; remote_ops.to_xfer_partial = remote_xfer_partial; remote_ops.to_rcmd = remote_rcmd; + remote_ops.to_pid_to_exec_file = remote_pid_to_exec_file; remote_ops.to_log_command = serial_log_command; remote_ops.to_get_thread_local_address = remote_get_thread_local_address; remote_ops.to_stratum = process_stratum; @@ -12219,6 +12251,9 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL, add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_auxv], "qXfer:auxv:read", "read-aux-vector", 0); + add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_exec_file], + "qXfer:exec-file:read", "pid-to-exec-file", 0); + add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_features], "qXfer:features:read", "target-features", 0); diff --git a/gdb/target.h b/gdb/target.h index f57e431..66bf91e 100644 --- a/gdb/target.h +++ b/gdb/target.h @@ -204,7 +204,12 @@ enum target_object /* Branch trace data, in XML format. */ TARGET_OBJECT_BTRACE, /* Branch trace configuration, in XML format. */ - TARGET_OBJECT_BTRACE_CONF + TARGET_OBJECT_BTRACE_CONF, + /* The pathname of the executable file that was run to create + a specified process. ANNEX should be a string representation + of the process ID of the process in question, in hexadecimal + format. */ + TARGET_OBJECT_EXEC_FILE, /* Possible future objects: TARGET_OBJECT_FILE, ... */ }; |