Re: target/6434: Thumb compilation produces no DWARF FDE instructions

Re: target/6434: Thumb compilation produces no DWARF FDE instructions

[Francisco Moraes]

The following reply was made to PR target/6434; it has been noted by GNATS.

From: "Francisco Moraes" <fmoraes@nc.rr.com>
To: <rearnsha@gcc.gnu.org>,
	<fmoraes@nc.rr.com>,
	<gcc-bugs@gcc.gnu.org>,
	<gcc-prs@gcc.gnu.org>,
	<nobody@gcc.gnu.org>,
	<gcc-gnats@gcc.gnu.org>
Cc:  
Subject: Re: target/6434: Thumb compilation produces no DWARF FDE instructions
Date: Wed, 24 Apr 2002 09:58:25 -0400

 Hi,
 
 One thing I noticed as well is that GCC does not produce a lot of FDE
 instructions other than those for the prologue. Is this the way GCC
 operates?
 
 Francisco
 ----- Original Message -----
 From: <rearnsha@gcc.gnu.org>
 To: <fmoraes@nc.rr.com>; <gcc-bugs@gcc.gnu.org>; <gcc-prs@gcc.gnu.org>;
 <nobody@gcc.gnu.org>
 Sent: Wednesday, April 24, 2002 9:09 AM
 Subject: Re: target/6434: Thumb compilation produces no DWARF FDE
 instructions
 
 
 > Synopsis: Thumb compilation produces no DWARF FDE instructions
 >
 > State-Changed-From-To: open->analyzed
 > State-Changed-By: rearnsha
 > State-Changed-When: Wed Apr 24 06:09:40 2002
 > State-Changed-Why:
 >     Confirmed.  The Thumb prologue expansion code does not annotate
 >     the prologue instructions to inform the debug table generator
 >     that they are related to the frame creation.  A further problem
 >     is that not all of the prologue is expanded into RTL (it's
 >     written directly to the assembly file); this will have to be
 >     rectified before the dwarf annotations will be correct.
 >
 >
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p
 r=6434
 >
 
 

Re: target/6434: Thumb compilation produces no DWARF FDE instructions

[rearnsha]

Synopsis: Thumb compilation produces no DWARF FDE instructions

State-Changed-From-To: open->analyzed
State-Changed-By: rearnsha
State-Changed-When: Wed Apr 24 06:09:40 2002
State-Changed-Why:
    Confirmed.  The Thumb prologue expansion code does not annotate
    the prologue instructions to inform the debug table generator
    that they are related to the frame creation.  A further problem
    is that not all of the prologue is expanded into RTL (it's
    written directly to the assembly file); this will have to be 
    rectified before the dwarf annotations will be correct.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6434