gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / findcmd.c

diff --git a/gdb/findcmd.c b/gdb/findcmd.c
index 5eba2dcc7839e46fa52a769ab974c04548bd34f7..c8631571f209ef5472c96f7de325cc374d5a28b0 100644 (file)
--- a/gdb/findcmd.c
+++ b/gdb/findcmd.c
@@ -1,6 +1,6 @@
 /* The find command.
 
-   Copyright (C) 2008-2017 Free Software Foundation, Inc.
+   Copyright (C) 2008-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,7 +25,7 @@
 #include "target.h"
 #include "cli/cli-utils.h"
 #include <algorithm>
-#include "common/byte-vector.h"
+#include "gdbsupport/byte-vector.h"
 
 /* Copied from bfd_put_bits.  */
 
@@ -209,7 +209,7 @@ parse_find_args (const char *args, ULONGEST *max_countp,
 }
 
 static void
-find_command (char *args, int from_tty)
+find_command (const char *args, int from_tty)
 {
   struct gdbarch *gdbarch = get_current_arch ();
   bfd_boolean big_p = gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG;
@@ -280,20 +280,23 @@ find_command (char *args, int from_tty)
                     found_count > 1 ? "s" : "");
 }
 
+void _initialize_mem_search ();
 void
-_initialize_mem_search (void)
+_initialize_mem_search ()
 {
   add_cmd ("find", class_vars, find_command, _("\
 Search memory for a sequence of bytes.\n\
 Usage:\nfind \
-[/size-char] [/max-count] start-address, end-address, expr1 [, expr2 ...]\n\
-find [/size-char] [/max-count] start-address, +length, expr1 [, expr2 ...]\n\
-size-char is one of b,h,w,g for 8,16,32,64 bit values respectively,\n\
+[/SIZE-CHAR] [/MAX-COUNT] START-ADDRESS, END-ADDRESS, EXPR1 [, EXPR2 ...]\n\
+find [/SIZE-CHAR] [/MAX-COUNT] START-ADDRESS, +LENGTH, EXPR1 [, EXPR2 ...]\n\
+SIZE-CHAR is one of b,h,w,g for 8,16,32,64 bit values respectively,\n\
 and if not specified the size is taken from the type of the expression\n\
 in the current language.\n\
 Note that this means for example that in the case of C-like languages\n\
 a search for an untyped 0x42 will search for \"(int) 0x42\"\n\
-which is typically four bytes.\n\
+which is typically four bytes, and a search for a string \"hello\" will\n\
+include the trailing '\\0'.  The null terminator can be removed from\n\
+searching by using casts, e.g.: {char[5]}\"hello\".\n\
 \n\
 The address of the last match is stored as the value of \"$_\".\n\
 Convenience variable \"$numfound\" is set to the number of matches."),