Document the 'info proc files' command.

[deliverable/binutils-gdb.git] / gdb / doc / gdb.texinfo

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index efbec3debffdc01f40dabec23a2294fc99d3a6a7..233af614058d63296e170d3a20826bd733ac222a 100644 (file)
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -20128,10 +20128,14 @@ Enable or disable the use of the symbol index cache.
 
 @item set index-cache directory @var{directory}
 @itemx show index-cache directory
-Set/show the directory where index files will be saved.  By default, the index
-is cached in the @file{gdb} subdirectory of the directory pointed to by the
-@env{XDG_CACHE_HOME} environment variable, if it is defined, else in the
-@file{.cache/gdb} subdirectory of your home directory.
+Set/show the directory where index files will be saved.
+
+The default value for this directory depends on the host platform.  On
+most systems, the index is cached in the @file{gdb} subdirectory of
+the directory pointed to by the @env{XDG_CACHE_HOME} environment
+variable, if it is defined, else in the @file{.cache/gdb} subdirectory
+of your home directory.  However, on some systems, the default may
+differ according to local convention.
 
 There is no limit on the disk space used by index cache.  It is perfectly safe
 to delete the content of that directory to free up disk space.
@@ -22244,6 +22248,36 @@ supported on @sc{gnu}/Linux and FreeBSD.
 Show the name of executable of the process.  This command is supported
 on @sc{gnu}/Linux and FreeBSD.
 
+@item info proc files
+@cindex info proc files
+Show the file descriptors open by the process.  For each open file
+descriptor, @value{GDBN} shows its number, type (file, directory,
+character device, socket), file pointer offset, and the name of the
+resource open on the descriptor.  The resource name can be a file name
+(for files, directories, and devices) or a protocol followed by socket
+address (for network connections).  This command is supported on
+FreeBSD.
+
+This example shows the open file descriptors for a process using a
+tty for standard input and output as well as two network sockets:
+
+@smallexample
+(gdb) info proc files 22136
+process 22136
+Open files:
+
+      FD   Type     Offset   Flags   Name
+    text   file          - r-------- /usr/bin/ssh
+    ctty    chr          - rw------- /dev/pts/20
+     cwd    dir          - r-------- /usr/home/john
+    root    dir          - r-------- /
+       0    chr  0x32933a4 rw------- /dev/pts/20
+       1    chr  0x32933a4 rw------- /dev/pts/20
+       2    chr  0x32933a4 rw------- /dev/pts/20
+       3 socket        0x0 rw----n-- tcp4 10.0.1.2:53014 -> 10.0.1.10:22
+       4 socket        0x0 rw------- unix stream:/tmp/ssh-FIt89oAzOn5f/agent.2456
+@end smallexample
+
 @item info proc mappings
 @cindex memory address space mappings
 Report the memory address space ranges accessible in the program.  On