Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can? Post: 302569873

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Top Forums UNIX for Advanced & Expert Users Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can? Post 302569873 by liklstar on Wednesday 2nd of November 2011 12:26:50 AM

11-02-2011

Registered User

Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can?

Dear all:

Code:

(gdb) add-symbol-file /home/likunlun/rtl8139_driver.ko 0xf80e5000 -s .bss 0xf80e72d4 -s .data 0xf80e70e0
add symbol table from file "/home/likunlun/rtl8139_driver.ko" at
    .text_addr = 0xf80e5000
    .bss_addr = 0xf80e72d4
    .data_addr = 0xf80e70e0
(y or n) y
Reading symbols from /home/likunlun/rtl8139_driver.ko...done.
(gdb) 

(gdb) b rtl8139_start_xmit
Breakpoint 1 at 0xf80e501e: file /home/liklstar/programs/rtl8139/rtl8139_driver.c, line 450.
(gdb) b rtl8139_stop
Breakpoint 2 at 0xf80e5d6d: file /home/liklstar/programs/rtl8139/rtl8139_driver.c, line 433.
(gdb) b rtl8139_interrupt
Breakpoint 3 at 0xf80e5644: file /home/liklstar/programs/rtl8139/rtl8139_driver.c, line 520.
(gdb) 

(gdb) b rtl8139_rx
Function "rtl8139_rx" not defined.
Make breakpoint pending on future shared library load? (y or [n]) n
(gdb) 



*****************In rtl8139_driver.c**********************
... ...
 36 static void rtl8139_hw_start(struct net_device *dev);
 37 static int rtl8139_open (struct net_device *dev);
 38 static int rtl8139_stop (struct net_device *rtl8139_dev);
 39 static int rtl8139_start_xmit(struct sk_buff *skb, struct net_device *dev);
 40 static struct net_device_stats *rtl8139_get_stats(struct net_device *dev);
 41 static int rtl8139_init (struct pci_dev *pdev, struct net_device *dev_out);
 42 static int rtl8139_rx (struct net_device *dev, unsigned int pkt_size);
 43 static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
... ...

Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can? All these function are defined in rtl8139_driver.c!

Last edited by Scott; 11-04-2011 at 05:37 AM.. Reason: Use code tags, please...

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gzexe

GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME

       gzexe - compress executable files in place

SYNOPSIS

       gzexe name ...

DESCRIPTION

       The  gzexe  utility  allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
       penalty in performance).  For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files:
	   -rwxr-xr-x  1 root root 1026675 Jun	7 13:53 /usr/bin/gdb
	   -rwxr-xr-x  1 root root 2304524 May 30 13:02 /usr/bin/gdb~
       /usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file.  You can remove /usr/bin/gdb~ once  you  are
       sure that /usr/bin/gdb works properly.

       This utility is most useful on systems with very small disks.

OPTIONS

       -d     Decompress the given executables instead of compressing them.

SEE ALSO

       gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)

CAVEATS

       The  compressed executable is a shell script.  This may create some security holes.  In particular, the compressed executable relies on the
       PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail).

BUGS

       gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually  in  some  cases,
       using chmod or chown.

																	  GZEXE(1)