[Bug backtrace/10770] New: Hang on some CFI programs

[Bug backtrace/10770] New: Hang on some CFI programs

[jan dot kratochvil at redhat dot com]

The attached testcase contains all the known CFI OP_*s, written by Jakub Jelinek.

(gdb) b force_unwind
Breakpoint 1 at 0x400690: file cleanup-13.c, line 285.
(gdb) r
Starting program: .../cleanup-13 
Breakpoint 1, force_unwind () at cleanup-13.c:285
285	  struct _Unwind_Exception *exc = malloc (sizeof (*exc));
(gdb) bt
#0  force_unwind () at cleanup-13.c:285
#1  0x00000000004006ff in callme () at cleanup-13.c:306
<hang>

-- 
           Summary: Hang on some CFI programs
           Product: gdb
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: backtrace
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: jan dot kratochvil at redhat dot com
                CC: gdb-prs at sourceware dot org
GCC target triplet: x86_64-unknown-linux-gnu


http://sourceware.org/bugzilla/show_bug.cgi?id=10770

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[Bug backtrace/10770] Hang on some CFI programs

[jan dot kratochvil at redhat dot com]

------- Additional Comments From jan dot kratochvil at redhat dot com  2009-10-13 17:52 -------
Created an attachment (id=4277)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=4277&action=view)
testcase


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http://sourceware.org/bugzilla/show_bug.cgi?id=10770

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[Bug backtrace/10770] Hang on some CFI programs

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-01-19 18:36 -------
Testing a patch.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at sourceware dot|tromey at redhat dot com
                   |org                         |
             Status|UNCONFIRMED                 |ASSIGNED


http://sourceware.org/bugzilla/show_bug.cgi?id=10770

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[Bug backtrace/10770] Hang on some CFI programs

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2010-01-20 18:06 -------
Subject: Bug 10770

CVSROOT:	/cvs/src
Module name:	src
Changes by:	tromey@sourceware.org	2010-01-20 18:06:16

Modified files:
	gdb            : ChangeLog dwarf2expr.c valarith.c 
	gdb/testsuite  : ChangeLog 
	gdb/testsuite/gdb.dwarf2: Makefile.in 
Added files:
	gdb/testsuite/gdb.dwarf2: pr10770.c pr10770.exp 

Log message:
	gdb
	PR backtrace/10770:
	* valarith.c (value_binop): Handle BINOP_GTR, BINOP_LEQ, and
	BINOP_GEQ.  Handle BINOP_NOTEQUAL in the signed case.
	* dwarf2expr.c (new_dwarf_expr_context): Allocate
	dwarf_stack_values, not CORE_ADDRs.
	(execute_stack_op): Change DW_OP_div and comparison operators to
	use signed operands.
	gdb/testsuite
	PR backtrace/10770:
	* gdb.dwarf2/pr10770.exp: New file.
	* gdb.dwarf2/pr10770.c: New file.
	* gdb.dwarf2/Makefile.in (EXECUTABLES): Add pr10770.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.11282&r2=1.11283
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/dwarf2expr.c.diff?cvsroot=src&r1=1.39&r2=1.40
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/valarith.c.diff?cvsroot=src&r1=1.78&r2=1.79
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.2096&r2=1.2097
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/pr10770.c.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/pr10770.exp.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.dwarf2/Makefile.in.diff?cvsroot=src&r1=1.5&r2=1.6



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[Bug backtrace/10770] Hang on some CFI programs

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-01-20 18:08 -------
Fix checked in.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=10770

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