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* [Bug debug/43325] New: C++ external inner reference does not override outer scope @ 2010-03-10 19:15 jan dot kratochvil at redhat dot com 2010-03-31 9:35 ` [Bug debug/43325] [4.5 Regression] " dodji at gcc dot gnu dot org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: jan dot kratochvil at redhat dot com @ 2010-03-10 19:15 UTC (permalink / raw) To: gcc-bugs namespace S { int f () { int i = 42; { extern int i; return i; } } } generates DWARF: # Grossly simplified. <1><2d>: Abbrev Number: 2 (DW_TAG_namespace) <2e> DW_AT_name : S <2><36>: Abbrev Number: 3 (DW_TAG_subprogram) <37> DW_AT_external : 1 <38> DW_AT_name : f <3c> DW_AT_MIPS_linkage_name: (indirect string, offset: 0x49): _ZN1S1fEv <61> DW_AT_low_pc : 0x0 <69> DW_AT_high_pc : 0x13 <71> DW_AT_frame_base : 0x0 (location list) <3><75>: Abbrev Number: 7 (DW_TAG_lexical_block) <76> DW_AT_low_pc : 0x4 <7e> DW_AT_high_pc : 0x11 <4><86>: Abbrev Number: 8 (DW_TAG_variable) <87> DW_AT_name : i <8f> DW_AT_location : 2 byte block: 91 6c (DW_OP_fbreg: -20) <4><92>: Abbrev Number: 9 (DW_TAG_lexical_block) <93> DW_AT_low_pc : 0xb <9b> DW_AT_high_pc : 0x11 <2><45>: Abbrev Number: 4 (DW_TAG_variable) <46> DW_AT_name : i <4a> DW_AT_MIPS_linkage_name: (indirect string, offset: 0x40): _ZN1S1iE <52> DW_AT_external : 1 <53> DW_AT_declaration : 1 But the last DIE should have been <5><45> being in inner DW_TAG_lexical_block so that debugger would display external variable S::i in the inner block. (I have inlined the DW_AT_specification reference in the dump above.) Similar case in C works OK: int f (void) { int i = 42; { extern int i; return i; } } -- Summary: C++ external inner reference does not override outer scope Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jan dot kratochvil at redhat dot com GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43325 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/43325] [4.5 Regression] C++ external inner reference does not override outer scope 2010-03-10 19:15 [Bug debug/43325] New: C++ external inner reference does not override outer scope jan dot kratochvil at redhat dot com @ 2010-03-31 9:35 ` dodji at gcc dot gnu dot org 2010-03-31 10:08 ` dodji at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: dodji at gcc dot gnu dot org @ 2010-03-31 9:35 UTC (permalink / raw) To: gcc-bugs -- dodji at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |dodji at gcc dot gnu dot org |dot org | Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2010-03-31 09:35:28 date| | Summary|C++ external inner reference|[4.5 Regression] C++ |does not override outer |external inner reference |scope |does not override outer | |scope http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43325 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/43325] [4.5 Regression] C++ external inner reference does not override outer scope 2010-03-10 19:15 [Bug debug/43325] New: C++ external inner reference does not override outer scope jan dot kratochvil at redhat dot com 2010-03-31 9:35 ` [Bug debug/43325] [4.5 Regression] " dodji at gcc dot gnu dot org @ 2010-03-31 10:08 ` dodji at gcc dot gnu dot org 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: dodji at gcc dot gnu dot org @ 2010-03-31 10:08 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from dodji at gcc dot gnu dot org 2010-03-31 10:08 ------- A patch was proposed at http://gcc.gnu.org/ml/gcc-patches/2010-03/msg01473.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43325 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/43325] [4.5 Regression] C++ external inner reference does not override outer scope 2010-03-10 19:15 [Bug debug/43325] New: C++ external inner reference does not override outer scope jan dot kratochvil at redhat dot com 2010-03-31 9:35 ` [Bug debug/43325] [4.5 Regression] " dodji at gcc dot gnu dot org 2010-03-31 10:08 ` dodji at gcc dot gnu dot org @ 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: dodji at gcc dot gnu dot org @ 2010-04-01 18:55 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from dodji at gcc dot gnu dot org 2010-04-01 18:54 ------- Subject: Bug 43325 Author: dodji Date: Thu Apr 1 18:54:30 2010 New Revision: 157928 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157928 Log: Fix for PR debug/43325 gcc/ChangeLog: PR debug/43325 * dwarf2out.c (gen_variable_die): Allow debug info for variable re-declaration when it happens in a function. gcc/testsuite/ChangeLog: PR debug/43325 * c-c++-common/dwarf2/redeclaration-1.C: New test. Added: trunk/gcc/testsuite/c-c++-common/dwarf2/redeclaration-1.C Modified: trunk/gcc/ChangeLog trunk/gcc/dwarf2out.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43325 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/43325] [4.5 Regression] C++ external inner reference does not override outer scope 2010-03-10 19:15 [Bug debug/43325] New: C++ external inner reference does not override outer scope jan dot kratochvil at redhat dot com ` (2 preceding siblings ...) 2010-04-01 18:55 ` dodji at gcc dot gnu dot org @ 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: dodji at gcc dot gnu dot org @ 2010-04-01 18:55 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from dodji at gcc dot gnu dot org 2010-04-01 18:55 ------- Fixed in 4.5 (trunk). -- dodji at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43325 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-04-01 18:55 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-03-10 19:15 [Bug debug/43325] New: C++ external inner reference does not override outer scope jan dot kratochvil at redhat dot com 2010-03-31 9:35 ` [Bug debug/43325] [4.5 Regression] " dodji at gcc dot gnu dot org 2010-03-31 10:08 ` dodji at gcc dot gnu dot org 2010-04-01 18:55 ` dodji at gcc dot gnu dot org 2010-04-01 18:55 ` dodji at gcc dot gnu dot org
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