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digitalmars.D.bugs - [Issue 4809] New: Stack trace when throwing exception misses location of the throw statement

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4809

           Summary: Stack trace when throwing exception misses location of
                    the throw statement
           Product: D
           Version: D1 & D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Keywords: patch
          Severity: normal
          Priority: P2
         Component: druntime
        AssignedTo: sean invisibleduck.org
        ReportedBy: r.sagitario gmx.de



PDT ---
Under windows, the following code

void func1() {
    throw new Exception("msg");
}

void main() {
    func1();
} 

shows this stack frame (debug info run through cv2pdb) when intercepting
throwing exceptions:

     kernel32.dll!_RaiseException 16()  + 0x52 bytes    
     test.exe!_d_throw(Object & h={...})  Line 238    C++

 	testexe!_Dmain()  Line 7 + 0x5 bytes	C++


     test.exe!rt dmain2 main runMain()  + 0xb bytes    C++
     test.exe!rt dmain2 main runAll()  + 0xe bytes    C++
     test.exe!main(int argc=1, char * * argv=0x008a03c4)  C++
     test.exe!_mainCRTStartup()  + 0xa9 bytes    C++
     kernel32.dll!_BaseProcessStart 4()  + 0x23 bytes    

i.e. it is missing the function actually throwing the exception.

This is caused by _d_throw not having a standard stack frame.

_d_throw is defined in deh.c and should be compiled with forcing standard stack
frames using option "-S":

deh.obj : src\rt\deh.c
-    $(CC) -c $(CFLAGS) src\rt\deh.c
+    $(CC) -c $(CFLAGS) -S src\rt\deh.c

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Sep 04 2010
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4809




PDT ---
The patch here is no longer valid, because deh.c has been translated to d some
time back.

Instead, use this:
https://github.com/D-Programming-Language/druntime/pull/80

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Oct 15 2011
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4809




Commit pushed to master at https://github.com/D-Programming-Language/druntime

https://github.com/D-Programming-Language/druntime/commit/80625a2fc87a830aa538f2f58579019c661ceac9


Issue 4809: Help the stack walker to find the location of a throw statement

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Jul 08 2012
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4809




Commits pushed to master at https://github.com/D-Programming-Language/druntime

https://github.com/D-Programming-Language/druntime/commit/dcc5a08e8b4ac9de869d727ceea3d407c7f92d00


This reverts commit 80625a2fc87a830aa538f2f58579019c661ceac9, reversing
changes made to ce783fff516d21c253edfecb40982c833add3e4b.

https://github.com/D-Programming-Language/druntime/commit/0baa13d9df06b0a27e9b8004ecdd5e8ef338adae
fix Issue 4809

- set up a stackframe for _d_throwc so that
  the caller is listed in the trace

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Jul 22 2012