[sdcc-devel] [ sdcc-Bugs-1460578 ] Segmentation fault when optimization on

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Bugs item #1460578, was opened at 2006-03-29 12:16
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Category: pic16 target
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Wojciech Zabolotny (wzab)
Assigned to: Nobody/Anonymous (nobody)
Summary: Segmentation fault when optimization on

Initial Comment:
I've tried to switch the optimization on, when
compiling the USB firmware.
I've attached the part of the sources, which are needed
to reproduce the error (the sources are obtained from:
http://gforge.enseeiht.fr/projects/vasco/ )

My sdcc is the latest one, downloaded yesterday from
the cvs, and compiled on my machine (debian/testing).

When I run the compilation from the command line, I get:

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$ /usr/bin/sdcc -mpic16 --optimize-df --opt-code-size
-p18f4455 -Iinclude -c ep0.c -o ep0.o
Caught signal 11: SIGSEGV
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

And the sdcc generates only the begining of the ep0.asm
file:
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$ cat ep0.asm
;--------------------------------------------------------
; File Created by SDCC : FreeWare ANSI-C Compiler
; Version 2.5.5 #1230 (Mar 29 2006)
; This file generated Wed Mar 29 12:11:21 2006
;--------------------------------------------------------
; PIC16 port for the Microchip 16-bit core micros
;--------------------------------------------------------
        list    p=18f4455

        radix dec
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

I've tried to run compilation in the gdb.
This is the transcript of the GDB session:
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$ gdb /usr/bin/sdcc
GNU gdb 6.4-debian
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public
License, and you are
welcome to change it and/or distribute copies of it
under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show
warranty" for details.
This GDB was configured as "i486-linux-gnu"...(no
debugging symbols found)
Using host libthread_db library
"/lib/tls/libthread_db.so.1".

(gdb) set args  -mpic16 --optimize-df --opt-code-size
-p18f4455 -Iinclude -c ep0 .c -o ep0.o
(gdb) run
Starting program: /usr/bin/sdcc -mpic16 --optimize-df
--opt-code-size -p18f4455 -Iinclude -c ep0.c -o ep0.o

[1]+  Stopped                 gdb /usr/bin/sdcc
user@myhost:/tmp/bug$ fg
gdb /usr/bin/sdcc
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)

Program received signal SIGSEGV, Segmentation fault.
0x08186d38 in ?? ()
(gdb) bt
#0  0x08186d38 in ?? ()
#1  0x08562178 in ?? ()
#2  0x08251c00 in stdin ()
#3  0x00000080 in ?? ()
#4  0x00000001 in ?? ()
#5  0x0865b4b0 in ?? ()
#6  0xb7e98880 in __malloc_initialize_hook () from
/lib/tls/libc.so.6
#7  0xbfe050a8 in ?? ()
#8  0x00002003 in ?? ()
#9  0x00001020 in ?? ()
#10 0x00000000 in ?? ()
(gdb)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>



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