sigsev for 2 different prgramms before main

[Dumas Patrice]

Hi,
I use linux redhat 7.0 glibc-2.2.4.
I compiled 2 different software, and the 2 get a SIGSEV signal in the same way,
before they reach the main. So I think this is a libc issue, but I am not
really sure.

When I use gdb, a breakpoint in main doesn't stop the programm, here is a
session:

(gdb) set args -x /usr/local/share/wv/wvHtml.xml chp1Franck.doc >
chp1Franck.html
(gdb) break main
Breakpoint 1 at 0x804a997: file ./wvWare.c, line 256.
(gdb) run
Starting program: /usr/local/bin/wvWare -x /usr/local/share/wv/wvHtml.xml 
chp1Franck.doc > chp1Franck.html
Program received signal SIGSEGV, Segmentation fault.
0x4000ae90 in ?? ()
(gdb)

A strace give:
execve("/usr/local/bin/wvWare", ["wvWare", "-x", 
"/usr/local/share/wv/wvHtml.xml", "chp1Franck.doc"], [/* 23
 vars */]) = 0
uname({sys="Linux", node="zeus", ...})  = 0
brk(0)                                  = 0x80e04d4
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, 0xbfffec2c)                  = -1 ENOSYS (Function not implemented)
fstat(3, {st_mode=S_IFREG|0644, st_size=37358, ...}) = 0
old_mmap(NULL, 37358, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40016000
close(3)                                = 0
open("/usr/lib/libpng.so.2", O_RDONLY)  = 3
read(3, "address@hidden"..., 1024) = 1024
fstat(3, {st_mode=S_IFREG|0755, st_size=129052, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
0x40020000
old_mmap(NULL, 132060, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40021000
mprotect(0x40040000, 5084, PROT_NONE)   = 0
old_mmap(0x40040000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
0x1e000) = 0x40040000

a lot more of such lines for the different library used by the programm, and in 
the end

open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\230\303"..., 1024) = 
1024
fstat(3, {st_mode=S_IFREG|0755, st_size=5703506, ...}) = 0
old_mmap(NULL, 1258856, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40236000
mprotect(0x40360000, 38248, PROT_NONE)  = 0
old_mmap(0x40360000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
0x129000) = 0x40360000
old_mmap(0x40366000, 13672, PROT_READ|PROT_WRITE, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40366000
close(3)                                = 0
mprotect(0x40042000, 49152, PROT_READ|PROT_WRITE) = 0
mprotect(0x40042000, 49152, PROT_READ|PROT_EXEC) = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

gcc 2.96. gcc options when compiling:
CFLAGS =  -g -O2  -DHAVE_CONFIG_H  -I/usr/lib/glib/include -ansi -pedantic -I. 
-I./ -I$(srcdir)/ -I$(srcdir)/magick/ -I$(srcdir)/expat/xmlparse/ 
-DXMLCONFIG=\"$(datadir)/wv/wvConfig.xml\" 
-DHTMLCONFIG=\"$(datadir)/wv/wvHtml.xml\" -I$(srcdir)/libole2/ 
-I$(srcdir)/oledecod/ -I/usr/local/include/freetype2 -I/usr/X11R6/include 
-I/usr/local/include 

The same happen with ssh-agent. The gcc options are here:
CFLAGS=-g -O2 -Wall

here is the end of strace:
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\230\303"..., 1024) = 
1024
fstat(3, {st_mode=S_IFREG|0755, st_size=5703506, ...}) = 0
old_mmap(NULL, 1258856, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4012e000
mprotect(0x40258000, 38248, PROT_NONE)  = 0
old_mmap(0x40258000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
0x129000) = 0x40258000
old_mmap(0x4025e000, 13672, PROT_READ|PROT_WRITE, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4025e000
close(3)                                = 0
mprotect(0x40049000, 708608, PROT_READ|PROT_WRITE) = 0
mprotect(0x40049000, 708608, PROT_READ|PROT_EXEC) = 0
mprotect(0x40021000, 49152, PROT_READ|PROT_WRITE) = 0
mprotect(0x40021000, 49152, PROT_READ|PROT_EXEC) = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

I don't know what to do nor what is wrong. I had never such things before, but 
I 
only recently upgraded the glib, so I though it could be linked.

Pat

Pat