Unable to catch the output after core dump and bus error
I have a weird situation in which the binary dumps core and gives bus error. But before dumping the core and throwing the buss error, it gives some output.
unfortunately I can't grep the output before core dump
But if I do
It returns nothing.
I also tried to redirect the output using
But still can't grep the output.
There is something wrong with bus error and code dump but there must be a way to catch the output. Please help
Thank You.
---------- Post updated at 09:57 AM ---------- Previous update was at 01:29 AM ----------
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LEARN ABOUT OPENDARWIN
core
CORE(5) BSD File Formats Manual CORE(5)NAME
core -- memory image file format
SYNOPSIS
#include <sys/param.h>
DESCRIPTION
A small number of signals which cause abnormal termination of a process also cause a record of the process's in-core state to be written to
disk for later examination by one of the available debuggers. (See sigaction(2).) This memory image is written to a file named by default
core.pid in the /cores directory; provided the terminated process had write permission in the directory, and the directory existed.
The maximum size of a core file is limited by setrlimit(2). Files which would be larger than the limit are not created.
The core file consists of the ~ Mach-O(5) header as described in the <mach-o/loader.h> file. The remainder of the core file consists of
various sections described in the Mach-O(5) header.
NOTE
Core dumps are disabled by default under Darwin/Mac OS X. To re-enable core dumps, a privlaged user must edit /etc/hostconfig to contain the
line:
COREDUMPS=-YES-
SEE ALSO gdb(1), setrlimit(2), sigaction(2), Mach-O(5), sysctl(8)HISTORY
A core file format appeared in Version 6 AT&T UNIX.
BSD March 18, 2002 BSD