public inbox for gdb-prs@sourceware.org help / color / mirror / Atom feed
* [Bug tui/10829] New: Confusing results printed when a subexpression is optimized out @ 2009-10-22 14:52 ajax at redhat dot com 2009-10-22 15:54 ` [Bug tui/10829] " jan dot kratochvil at redhat dot com ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: ajax at redhat dot com @ 2009-10-22 14:52 UTC (permalink / raw) To: gdb-prs [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 1158 bytes --] In the X server during request processing, where "stuff" is a struct xReq * with a member named class: (gdb) print stuff $3 = <value optimized out> (gdb) print stuff->class Cannot access memory at address 0x16 The naïve conclusion for the user is that "stuff" somehow became NULL, which is not in fact true; its value is merely being flattened to zero before computing the offset of the "class" member. The second print statement should be more along the lines of "Cannot evaluate subexpression foo". gdb version: % rpm -q gdb gdb-6.8.91.20090921-1.fc12.i686 -- Summary: Confusing results printed when a subexpression is optimized out Product: gdb Version: unknown Status: UNCONFIRMED Severity: normal Priority: P2 Component: tui AssignedTo: unassigned at sourceware dot org ReportedBy: ajax at redhat dot com CC: gdb-prs at sourceware dot org http://sourceware.org/bugzilla/show_bug.cgi?id=10829 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tui/10829] Confusing results printed when a subexpression is optimized out 2009-10-22 14:52 [Bug tui/10829] New: Confusing results printed when a subexpression is optimized out ajax at redhat dot com @ 2009-10-22 15:54 ` jan dot kratochvil at redhat dot com 2010-01-07 19:08 ` ajax at redhat dot com 2010-04-18 1:12 ` [Bug gdb/10829] " pedro at codesourcery dot com 2 siblings, 0 replies; 4+ messages in thread From: jan dot kratochvil at redhat dot com @ 2009-10-22 15:54 UTC (permalink / raw) To: gdb-prs -- What |Removed |Added ---------------------------------------------------------------------------- CC| |jan dot kratochvil at redhat | |dot com http://sourceware.org/bugzilla/show_bug.cgi?id=10829 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tui/10829] Confusing results printed when a subexpression is optimized out 2009-10-22 14:52 [Bug tui/10829] New: Confusing results printed when a subexpression is optimized out ajax at redhat dot com 2009-10-22 15:54 ` [Bug tui/10829] " jan dot kratochvil at redhat dot com @ 2010-01-07 19:08 ` ajax at redhat dot com 2010-04-18 1:12 ` [Bug gdb/10829] " pedro at codesourcery dot com 2 siblings, 0 replies; 4+ messages in thread From: ajax at redhat dot com @ 2010-01-07 19:08 UTC (permalink / raw) To: gdb-prs -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 http://sourceware.org/bugzilla/show_bug.cgi?id=10829 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gdb/10829] Confusing results printed when a subexpression is optimized out 2009-10-22 14:52 [Bug tui/10829] New: Confusing results printed when a subexpression is optimized out ajax at redhat dot com 2009-10-22 15:54 ` [Bug tui/10829] " jan dot kratochvil at redhat dot com 2010-01-07 19:08 ` ajax at redhat dot com @ 2010-04-18 1:12 ` pedro at codesourcery dot com 2 siblings, 0 replies; 4+ messages in thread From: pedro at codesourcery dot com @ 2010-04-18 1:12 UTC (permalink / raw) To: gdb-prs -- What |Removed |Added ---------------------------------------------------------------------------- Component|tui |gdb http://sourceware.org/bugzilla/show_bug.cgi?id=10829 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-04-18 1:12 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-10-22 14:52 [Bug tui/10829] New: Confusing results printed when a subexpression is optimized out ajax at redhat dot com 2009-10-22 15:54 ` [Bug tui/10829] " jan dot kratochvil at redhat dot com 2010-01-07 19:08 ` ajax at redhat dot com 2010-04-18 1:12 ` [Bug gdb/10829] " pedro at codesourcery 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).