From 02ca603a481d55e175765ab5bff30a04b86e905a Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Sun, 6 Aug 2017 11:07:28 -0600 Subject: [PATCH] Fix add-symbol-file usage and errors This patch updates add-symbol-file help and error text. It changes add-symbol-file to throw an exception if "-s" is seen but not all of the arguments are given. Previously this was silently ignored. It changes the unrecognized argument message to more clearly state what went wrong. Finally, it updates the usage line in the help text to follow GNU style regarding "metasyntactic variables"; a change I believe should be made to all gdb help messages. gdb/ChangeLog 2017-11-29 Tom Tromey * symfile.c (add_symbol_file_command): Error if some arguments to -s are missing. Change unrecognized-argument error message. (_initialize_symfile): Fix usage text for add-symbol-file. gdb/testsuite/ChangeLog 2017-11-29 Tom Tromey * gdb.base/relocate.exp: Update invalid argument test. Add new tests for invalid arguments. --- gdb/ChangeLog | 6 ++++++ gdb/symfile.c | 16 ++++++++++------ gdb/testsuite/ChangeLog | 5 +++++ gdb/testsuite/gdb.base/relocate.exp | 12 ++++++++++-- 4 files changed, 31 insertions(+), 8 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ebb969998c..f3a2175dc9 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2017-11-29 Tom Tromey + + * symfile.c (add_symbol_file_command): Error if some arguments to + -s are missing. Change unrecognized-argument error message. + (_initialize_symfile): Fix usage text for add-symbol-file. + 2017-11-27 Tom Tromey * Makefile.in (REMOTE_OBS): Remove. diff --git a/gdb/symfile.c b/gdb/symfile.c index feb50f8b79..c19cdd20eb 100644 --- a/gdb/symfile.c +++ b/gdb/symfile.c @@ -2244,8 +2244,7 @@ add_symbol_file_command (const char *args, int from_tty) expecting_sec_addr = 1; } else - error (_("USAGE: add-symbol-file " - " [-readnow] [-s ]*")); + error (_("Unrecognized argument \"%s\""), arg); } } @@ -2257,6 +2256,11 @@ add_symbol_file_command (const char *args, int from_tty) error (_("The address where %s has been loaded is missing"), filename.get ()); + if (expecting_sec_name) + error (_("Missing section name after \"-s\"")); + else if (expecting_sec_addr) + error (_("Missing section address after \"-s\"")); + /* Print the prompt for the query below. And save the arguments into a sect_addr_info structure to be passed around to other functions. We have to split this up into separate print @@ -3882,11 +3886,11 @@ to execute."), &cmdlist); c = add_cmd ("add-symbol-file", class_files, add_symbol_file_command, _("\ Load symbols from FILE, assuming FILE has been dynamically loaded.\n\ -Usage: add-symbol-file FILE ADDR [-s -s \ - ...]\nADDR is the starting address of the file's text.\n\ -The optional arguments are section-name section-address pairs and\n\ +Usage: add-symbol-file FILE ADDR [-readnow | -s SECT-NAME SECT-ADDR]...\n\ +ADDR is the starting address of the file's text.\n\ +Each '-s' argument provides a section name and address, and\n\ should be specified if the data and bss segments are not contiguous\n\ -with the text. SECT is a section name to be loaded at SECT_ADDR."), +with the text. SECT-NAME is a section name to be loaded at SECT-ADDR."), &cmdlist); set_cmd_completer (c, filename_completer); diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 87b917e0c5..4fba24bedc 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-11-29 Tom Tromey + + * gdb.base/relocate.exp: Update invalid argument test. + Add new tests for invalid arguments. + 2017-11-29 Thomas Preud'homme * gdb.cp/psymtab-parameter.cc (func): Change return type back to long. diff --git a/gdb/testsuite/gdb.base/relocate.exp b/gdb/testsuite/gdb.base/relocate.exp index 5639cc8847..6eef15fb20 100644 --- a/gdb/testsuite/gdb.base/relocate.exp +++ b/gdb/testsuite/gdb.base/relocate.exp @@ -31,11 +31,19 @@ gdb_reinitialize_dir $srcdir/$subdir #Check that invalid options are rejected. foreach x {"-raednow" "readnow" "foo" "-readnow s"} { + set word [lindex $x [expr [llength $x]-1]] gdb_test "add-symbol-file ${binfile} 0 $x" \ - "USAGE: add-symbol-file .*-readnow.*-s .*" \ - "add-symbol-file: unknown option $x" + "Unrecognized argument \"$word\"" \ + "add-symbol-file: unknown option $word" } +gdb_test "add-symbol-file ${binfile} 0 -s" \ + "Missing section name after .-s." \ + "add-symbol-file bare -s" +gdb_test "add-symbol-file ${binfile} 0 -s .whatever" \ + "Missing section address after .-s." \ + "add-symbol-file missing address" + # Load the object file. gdb_test "add-symbol-file ${binfile} 0" \ "Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \ -- 2.34.1