linux-kernel - [PATCH][kgdb] Make mem access function weak in kgdb.c.

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Date:	Tue, 09 Sep 2008 14:03:40 +0800
From:	sonic zhang <sonic.adi@...il.com>
To:	Jason Wessel <jason.wessel@...driver.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	kgdb mailing list <kgdb-bugreport@...ts.sourceforge.net>
Subject: [PATCH][kgdb] Make mem access function weak in kgdb.c.

L1 instruction memory and MMR memory on blackfin can not be accessed by
common functions probe_kernel_read() and probe_kernel_write().
Blackfin asks for 2/4 byte align access to MMR memory and DMA access to L1
instruction memory. These functions need to be reimplemented in
architecture specific kgdb.c.


Signed-off-by: Sonic Zhang <sonic.adi@...il.com>
---
 kernel/kgdb.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index eaa21fc..88fbab6 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -363,7 +363,7 @@ static void put_packet(char *buffer)
  * Convert the memory pointed to by mem into hex, placing result in buf.
  * Return a pointer to the last char put in buf (null). May return an error.
  */
-int kgdb_mem2hex(char *mem, char *buf, int count)
+int __weak kgdb_mem2hex(char *mem, char *buf, int count)
 {
 	char *tmp;
 	int err;
@@ -393,7 +393,7 @@ int kgdb_mem2hex(char *mem, char *buf, int count)
  * 0x7d escaped with 0x7d.  Return a pointer to the character after
  * the last byte written.
  */
-static int kgdb_ebin2mem(char *buf, char *mem, int count)
+int __weak kgdb_ebin2mem(char *buf, char *mem, int count)
 {
 	int err = 0;
 	char c;
@@ -418,7 +418,7 @@ static int kgdb_ebin2mem(char *buf, char *mem, int count)
  * Return a pointer to the character AFTER the last byte written.
  * May return an error.
  */
-int kgdb_hex2mem(char *buf, char *mem, int count)
+int __weak kgdb_hex2mem(char *buf, char *mem, int count)
 {
 	char *tmp_raw;
 	char *tmp_hex;
-- 
1.6.0

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