public inbox for gdb-prs@sourceware.org help / color / mirror / Atom feed
* [Bug gdb/30204] New: RFE add an option to to ptype to print the decl file and decl line for a type @ 2023-03-06 18:32 woodard at redhat dot com 2023-03-07 14:13 ` [Bug gdb/30204] " tromey at sourceware dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: woodard at redhat dot com @ 2023-03-06 18:32 UTC (permalink / raw) To: gdb-prs https://sourceware.org/bugzilla/show_bug.cgi?id=30204 Bug ID: 30204 Summary: RFE add an option to to ptype to print the decl file and decl line for a type Product: gdb Version: HEAD Status: NEW Severity: normal Priority: P2 Component: gdb Assignee: unassigned at sourceware dot org Reporter: woodard at redhat dot com Target Milestone: --- Sometimes when you are looking at a type it is hard to figure out where that declaration actually came from. This is included in the DWARF, can you print it out. Maybe add a flag to ptype that does this: (gdb) help ptype Print definition of type TYPE. Usage: ptype[/FLAGS] TYPE | EXPRESSION Argument may be any type (for example a type name defined by typedef, or "struct STRUCT-TAG" or "class CLASS-NAME" or "union UNION-TAG" or "enum ENUM-TAG") or an expression. The selected stack frame's lexical context is used to look up the name. Contrary to "whatis", "ptype" always unrolls any typedefs. Available FLAGS are: /r print in "raw" form; do not substitute typedefs /m do not print methods defined in a class /M print methods defined in a class /t do not print typedefs defined in a class /T print typedefs defined in a class /o print offsets and sizes of fields in a struct (like pahole) like /l include declaration file and line according to fche this could probably be added to whatis_exp() in typeprint.c if gdb's struct type in gdbtypes.h was modified to add the declfile and the declline attributes. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gdb/30204] RFE add an option to to ptype to print the decl file and decl line for a type 2023-03-06 18:32 [Bug gdb/30204] New: RFE add an option to to ptype to print the decl file and decl line for a type woodard at redhat dot com @ 2023-03-07 14:13 ` tromey at sourceware dot org 2023-03-07 15:34 ` ssbssa at sourceware dot org 2023-03-08 0:54 ` woodard at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: tromey at sourceware dot org @ 2023-03-07 14:13 UTC (permalink / raw) To: gdb-prs https://sourceware.org/bugzilla/show_bug.cgi?id=30204 Tom Tromey <tromey at sourceware dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tromey at sourceware dot org See Also| |https://sourceware.org/bugz | |illa/show_bug.cgi?id=11796 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gdb/30204] RFE add an option to to ptype to print the decl file and decl line for a type 2023-03-06 18:32 [Bug gdb/30204] New: RFE add an option to to ptype to print the decl file and decl line for a type woodard at redhat dot com 2023-03-07 14:13 ` [Bug gdb/30204] " tromey at sourceware dot org @ 2023-03-07 15:34 ` ssbssa at sourceware dot org 2023-03-08 0:54 ` woodard at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: ssbssa at sourceware dot org @ 2023-03-07 15:34 UTC (permalink / raw) To: gdb-prs https://sourceware.org/bugzilla/show_bug.cgi?id=30204 Hannes Domani <ssbssa at sourceware dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ssbssa at sourceware dot org --- Comment #1 from Hannes Domani <ssbssa at sourceware dot org> --- Have you tried `info types`? -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gdb/30204] RFE add an option to to ptype to print the decl file and decl line for a type 2023-03-06 18:32 [Bug gdb/30204] New: RFE add an option to to ptype to print the decl file and decl line for a type woodard at redhat dot com 2023-03-07 14:13 ` [Bug gdb/30204] " tromey at sourceware dot org 2023-03-07 15:34 ` ssbssa at sourceware dot org @ 2023-03-08 0:54 ` woodard at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: woodard at redhat dot com @ 2023-03-08 0:54 UTC (permalink / raw) To: gdb-prs https://sourceware.org/bugzilla/show_bug.cgi?id=30204 --- Comment #2 from Ben Woodard <woodard at redhat dot com> --- "info types REGEX" can do what I need in many cases. However, it becomes rather unhandy in C++ code where the number of types can be astronomically large. It also doesn't associate it with a variable in the particular context the way that ptype does. This can be particularly confusing when you have ABI compatible but polymorphic C types defined differently in different compilation units. For example a few days ago I was dealing with four different versions of struct _Unwind_Context and the type changed depending on which function I happened to be in. It was hard to know which one of the various versions of the type I was using at any given time. That is why I think it would be nice if you could do something like: ptype/l variable and it would print the declaration file and line number in addition to the normal output of ptype. I do not have any particular attachment to /l in particular, I was thinking "declaration location" 'l' for location but it could be 'd' for declaration or something else that makes sense to people. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-03-08 0:54 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-03-06 18:32 [Bug gdb/30204] New: RFE add an option to to ptype to print the decl file and decl line for a type woodard at redhat dot com 2023-03-07 14:13 ` [Bug gdb/30204] " tromey at sourceware dot org 2023-03-07 15:34 ` ssbssa at sourceware dot org 2023-03-08 0:54 ` woodard at redhat dot com
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).