* set sysroot foo cannot be undone @ 2015-03-10 16:38 Gary Benson 2015-03-10 16:44 ` Pedro Alves 0 siblings, 1 reply; 3+ messages in thread From: Gary Benson @ 2015-03-10 16:38 UTC (permalink / raw) To: gdb-patches Hi all, When you start GDB sysroot is set to "", unless you configured it differently. After you set it to something else it doesn't seem possible to restore sysroot to "". Would anyone object to my implementing an "unset sysroot" command? Cheers, Gary -- http://gbenson.net/ ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: set sysroot foo cannot be undone 2015-03-10 16:38 set sysroot foo cannot be undone Gary Benson @ 2015-03-10 16:44 ` Pedro Alves 2015-03-12 11:50 ` [OB PATCH] Allow "set sysroot" with no argument Gary Benson 0 siblings, 1 reply; 3+ messages in thread From: Pedro Alves @ 2015-03-10 16:44 UTC (permalink / raw) To: Gary Benson, gdb-patches On 03/10/2015 04:38 PM, Gary Benson wrote: > Hi all, > > When you start GDB sysroot is set to "", unless you configured it > differently. After you set it to something else it doesn't seem > possible to restore sysroot to "". Would anyone object to my > implementing an "unset sysroot" command? Why not just make "set sysroot" (no argument) work? That's the first thing that I blindly tried without even thinking about it, thinking it'd just work like other commands (below). Did you find a good reason that wouldn't be desirable? $ gdb GNU gdb (GDB) 7.9.50.20150309-cvs ... (gdb) show debug-file-directory The directory where separate debug symbols are searched for is "/usr/lib/debug". (gdb) set debug-file-directory (gdb) show debug-file-directory The directory where separate debug symbols are searched for is "". ... (gdb) show args Argument list to give program being debugged when it is started is "". (gdb) set args foo (gdb) show args Argument list to give program being debugged when it is started is "foo". (gdb) set args (gdb) show args Argument list to give program being debugged when it is started is "". ... Thanks, Pedro Alves ^ permalink raw reply [flat|nested] 3+ messages in thread
* [OB PATCH] Allow "set sysroot" with no argument 2015-03-10 16:44 ` Pedro Alves @ 2015-03-12 11:50 ` Gary Benson 0 siblings, 0 replies; 3+ messages in thread From: Gary Benson @ 2015-03-12 11:50 UTC (permalink / raw) To: gdb-patches; +Cc: Pedro Alves Pedro Alves wrote: > On 03/10/2015 04:38 PM, Gary Benson wrote: > > When you start GDB sysroot is set to "", unless you configured it > > differently. After you set it to something else it doesn't seem > > possible to restore sysroot to "". Would anyone object to my > > implementing an "unset sysroot" command? > > Why not just make "set sysroot" (no argument) work? That's the > first thing that I blindly tried without even thinking about it, > thinking it'd just work like other commands (below). Did you find > a good reason that wouldn't be desirable? Nope. Ok, I've done it. This commit creates the "set/show sysroot" commands using add_setshow_optional_filename_cmd to allow the sysroot to be restored to empty after being set. Pushed as obvious. Would it be intuitive to automatically add "unset" commands for any set command that allows no arguments? Cheers, Gary --- gdb/ChangeLog: * solib.c (_initialize_solib): Make "set/show sysroot" use add_setshow_optional_filename_cmd so it can be restored to empty after being set. --- gdb/ChangeLog | 6 ++++++ gdb/solib.c | 10 +++++----- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/gdb/solib.c b/gdb/solib.c index 8417f88..c8138ef 100644 --- a/gdb/solib.c +++ b/gdb/solib.c @@ -1590,16 +1590,16 @@ inferior. Otherwise, symbols must be loaded manually, using \ show_auto_solib_add, &setlist, &showlist); - add_setshow_filename_cmd ("sysroot", class_support, - &gdb_sysroot, _("\ + add_setshow_optional_filename_cmd ("sysroot", class_support, + &gdb_sysroot, _("\ Set an alternate system root."), _("\ Show the current system root."), _("\ The system root is used to load absolute shared library symbol files.\n\ For other (relative) files, you can add directories using\n\ `set solib-search-path'."), - reload_shared_libraries, - NULL, - &setlist, &showlist); + reload_shared_libraries, + NULL, + &setlist, &showlist); add_alias_cmd ("solib-absolute-prefix", "sysroot", class_support, 0, &setlist); -- 1.7.1 ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-03-12 11:50 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-03-10 16:38 set sysroot foo cannot be undone Gary Benson 2015-03-10 16:44 ` Pedro Alves 2015-03-12 11:50 ` [OB PATCH] Allow "set sysroot" with no argument Gary Benson
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