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Date: Thu, 01 May 2008 13:51:09 -0700
From: Harvey Harrison <harvey.harrison@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/4] kgdb: use the common ascii hex helpers
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
drivers/misc/kgdbts.c | 5 ++---
kernel/kgdb.c | 36 +++++++++++-------------------------
2 files changed, 13 insertions(+), 28 deletions(-)
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 30a1af8..03d3549 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -118,7 +118,6 @@
} while (0)
#define MAX_CONFIG_LEN 40
-static const char hexchars[] = "0123456789abcdef";
static struct kgdb_io kgdbts_io_ops;
static char get_buf[BUFMAX];
static int get_buf_cnt;
@@ -618,8 +617,8 @@ static void fill_get_buf(char *buf)
count++;
}
strcat(get_buf, "#");
- get_buf[count + 2] = hexchars[checksum >> 4];
- get_buf[count + 3] = hexchars[checksum & 0xf];
+ get_buf[count + 2] = hex_asc_hi(checksum);
+ get_buf[count + 3] = hex_asc_lo(checksum);
get_buf[count + 4] = '\0';
v2printk("get%i: %s\n", ts.idx, get_buf);
}
diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index 1bd0ec1..216c3dc 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -226,20 +226,6 @@ void __weak kgdb_disable_hw_debug(struct pt_regs *regs)
/*
* GDB remote protocol parser:
*/
-
-static const char hexchars[] = "0123456789abcdef";
-
-static int hex(char ch)
-{
- if ((ch >= 'a') && (ch <= 'f'))
- return ch - 'a' + 10;
- if ((ch >= '0') && (ch <= '9'))
- return ch - '0';
- if ((ch >= 'A') && (ch <= 'F'))
- return ch - 'A' + 10;
- return -1;
-}
-
/* scan for the sequence $<data>#<checksum> */
static void get_packet(char *buffer)
{
@@ -276,8 +262,8 @@ static void get_packet(char *buffer)
buffer[count] = 0;
if (ch == '#') {
- xmitcsum = hex(kgdb_io_ops->read_char()) << 4;
- xmitcsum += hex(kgdb_io_ops->read_char());
+ xmitcsum = hex_to_int(kgdb_io_ops->read_char()) << 4;
+ xmitcsum += hex_to_int(kgdb_io_ops->read_char());
if (checksum != xmitcsum)
/* failed checksum */
@@ -316,8 +302,8 @@ static void put_packet(char *buffer)
}
kgdb_io_ops->write_char('#');
- kgdb_io_ops->write_char(hexchars[checksum >> 4]);
- kgdb_io_ops->write_char(hexchars[checksum & 0xf]);
+ kgdb_io_ops->write_char(hex_asc_hi(checksum));
+ kgdb_io_ops->write_char(hex_asc_lo(checksum));
if (kgdb_io_ops->flush)
kgdb_io_ops->flush();
@@ -348,8 +334,8 @@ static void put_packet(char *buffer)
static char *pack_hex_byte(char *pkt, u8 byte)
{
- *pkt++ = hexchars[byte >> 4];
- *pkt++ = hexchars[byte & 0xf];
+ *pkt++ = hex_asc_hi(byte);
+ *pkt++ = hex_asc_lo(byte);
return pkt;
}
@@ -427,8 +413,8 @@ int kgdb_hex2mem(char *buf, char *mem, int count)
tmp_hex = tmp_raw - 1;
while (tmp_hex >= buf) {
tmp_raw--;
- *tmp_raw = hex(*tmp_hex--);
- *tmp_raw |= hex(*tmp_hex--) << 4;
+ *tmp_raw = hex_to_int(*tmp_hex--);
+ *tmp_raw |= hex_to_int(*tmp_hex--) << 4;
}
return probe_kernel_write(mem, tmp_raw, count);
@@ -446,7 +432,7 @@ int kgdb_hex2long(char **ptr, long *long_val)
*long_val = 0;
while (**ptr) {
- hex_val = hex(**ptr);
+ hex_val = hex_to_int(**ptr);
if (hex_val < 0)
break;
@@ -486,8 +472,8 @@ static void error_packet(char *pkt, int error)
{
error = -error;
pkt[0] = 'E';
- pkt[1] = hexchars[(error / 10)];
- pkt[2] = hexchars[(error % 10)];
+ pkt[1] = hex_asc[(error / 10)];
+ pkt[2] = hex_asc[(error % 10)];
pkt[3] = '\0';
}
--
1.5.5.1.305.g7c84
--
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