[Bug debug/29132] [4.1/4.2 Regression] Mips exception handling broken.

["ddaney at avtrex dot com" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #3 from ddaney at avtrex dot com  2006-09-18 21:32 -------
Subject: Re:  [4.2 Regression] Mips exception handling broken.

roger at eyesopen dot com wrote:
> ------- Comment #1 from roger at eyesopen dot com  2006-09-18 21:27 -------
> Hi David,
> 
> I was wondering if you have a MIPS tree handy, whether you could easily
> test the following single line patch:
> 
> Index: dwarf2out.c
> ===================================================================
> *** dwarf2out.c (revision 117035)
> --- dwarf2out.c (working copy)
> *************** dwarf2out_begin_prologue (unsigned int l
> *** 2572,2578 ****
>     fde = &fde_table[fde_table_in_use++];
>     fde->decl = current_function_decl;
>     fde->dw_fde_begin = dup_label;
> !   fde->dw_fde_current_label = NULL;
>     fde->dw_fde_hot_section_label = NULL;
>     fde->dw_fde_hot_section_end_label = NULL;
>     fde->dw_fde_unlikely_section_label = NULL;
> --- 2572,2578 ----
>     fde = &fde_table[fde_table_in_use++];
>     fde->decl = current_function_decl;
>     fde->dw_fde_begin = dup_label;
> !   fde->dw_fde_current_label = dup_label;
>     fde->dw_fde_hot_section_label = NULL;
>     fde->dw_fde_hot_section_end_label = NULL;
>     fde->dw_fde_unlikely_section_label = NULL;
> 
> Due to all the abstraction with debugging formats, its difficult to tell the
> order in which things get executed, and whether this initial value for
> dw_fde_current_label survives long enough to avoid use of a set_loc.
> 

I will try the patch now.  A full build with libgcj will take me several 
hours to build and test.

David Daney.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29132