Re: [ES40-developers] Patch: Backtrace fix

[Camiel V. <iam...@gm...>]

This has been committed to the repository.

Camiel.

On Thu, Feb 21, 2008 at 2:55 PM, Brian Wheeler <bdw...@in...> wrote:
> This patch make a few changes to the backtrace functionality:
>
>  * adds the -rdynamic LD flag if DEBUG_BACKTRACE is specified.  This
>  allows all non-static function names to appear in the backtrace.
>
>  * catch SIGUSR1 to trigger the backtracer if es40 seems to have hung.
>
>  * use _exit() to really really quit when a SIGSEGV is caught.
>
>
>  Index: Makefile
>  ===================================================================
>  RCS file: /cvsroot/es40/es40/src/Makefile,v
>  retrieving revision 1.26
>  diff -u -w -r1.26 Makefile
>  --- Makefile    20 Feb 2008 21:02:50 -0000      1.26
>  +++ Makefile    21 Feb 2008 13:47:38 -0000
>  @@ -135,6 +135,7 @@
>   #   -DDEBUG_PIC                    Turn on Programmable Interrupt Controller debugging
>   #   -DDEBUG_LPT         Turn on debugging for LPT Port
>   #   -DDEBUG_BACKTRACE   Turn on backtrace dump on SIGSEGV
>  +#   -DDEBUG_USB                Turn on debugging for USB controller
>   #
>   CDEBUGFLAGS = -g -DHIDE_COUNTER -DDEBUG_BACKTRACE
>
>  @@ -172,6 +173,11 @@
>   LDOPTIONFLAGS += -g
>   endif
>
>  +ifneq ($(findstring "-DDEBUG_BACKTRACE",$(CDEBUGFLAGS)),"")
>  +LDOPTIONFLAGS += -rdynamic
>  +endif
>  +
>  +
>   CFLAGS =  -I. -I..  \
>         $(CDEBUGFLAGS) $(CTUNINGFLAGS) $(OPTIONS) $(COPTIONFLAGS)
>   LDFLAGS = $(LDOPTIONFLAGS)
>  @@ -265,4 +271,3 @@
>         $(DEPEND) -o.do -a -- $(IDB_CFLAGS) -- $(SRCS)
>   clean:
>         rm -f es40 es40_idb es40_lss es40_lsm *.o *.do *.mao *.slo *.trc gui/*.o gui/*.mao gui/*.slo gui/*.do
>  -
>  Index: AlphaSim.cpp
>  ===================================================================
>  RCS file: /cvsroot/es40/es40/src/AlphaSim.cpp,v
>  retrieving revision 1.40
>  diff -u -w -r1.40 AlphaSim.cpp
>  --- AlphaSim.cpp        7 Feb 2008 20:33:26 -0000       1.40
>  +++ AlphaSim.cpp        21 Feb 2008 13:47:38 -0000
>  @@ -211,7 +211,7 @@
>      printf("%3d %s\n",nptrs-i, strings[i]);
>    }
>    free(strings);
>  -  exit(1);
>  +  if(signum==SIGSEGV) _exit(1);
>   }
>
>   #else
>  @@ -255,6 +255,7 @@
>
>   #ifdef HAS_BACKTRACE
>    signal(SIGSEGV, &segv_handler);
>  +  signal(SIGUSR1, &segv_handler);
>   #endif
>
>    try
>
>
>
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