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Message-Id: <1210619140.24092.58.camel@brick>
Date: Mon, 12 May 2008 12:05:40 -0700
From: Harvey Harrison <harvey.harrison@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 07/12] cris: use the common ascii hex helpers
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
arch/cris/arch-v10/kernel/kgdb.c | 79 +++++++++++--------------------------
arch/cris/arch-v32/kernel/kgdb.c | 60 ++++++----------------------
2 files changed, 37 insertions(+), 102 deletions(-)
diff --git a/arch/cris/arch-v10/kernel/kgdb.c b/arch/cris/arch-v10/kernel/kgdb.c
index a3ca551..6fea45f 100644
--- a/arch/cris/arch-v10/kernel/kgdb.c
+++ b/arch/cris/arch-v10/kernel/kgdb.c
@@ -278,14 +278,6 @@ void putDebugChar (int val);
void enableDebugIRQ (void);
-/* Returns the character equivalent of a nibble, bit 7, 6, 5, and 4 of a byte,
- represented by int x. */
-static char highhex (int x);
-
-/* Returns the character equivalent of a nibble, bit 3, 2, 1, and 0 of a byte,
- represented by int x. */
-static char lowhex (int x);
-
/* Returns the integer equivalent of a hexadecimal character. */
static int hex (char ch);
@@ -356,9 +348,6 @@ extern unsigned char executing_task;
/* Run-length encoding maximum length. Send 64 at most. */
#define RUNLENMAX 64
-/* Definition of all valid hexadecimal characters */
-static const char hexchars[] = "0123456789abcdef";
-
/* The inbound/outbound buffers used in packet I/O */
static char remcomInBuffer[BUFMAX];
static char remcomOutBuffer[BUFMAX];
@@ -499,8 +488,8 @@ gdb_cris_strtol (const char *s, char **endptr, int base)
char *sd;
int x = 0;
- for (s1 = (char*)s; (sd = gdb_cris_memchr(hexchars, *s1, base)) != NULL; ++s1)
- x = x * base + (sd - hexchars);
+ for (s1 = (char*)s; (sd = gdb_cris_memchr(hex_asc, *s1, base)) != NULL; ++s1)
+ x = x * base + (sd - hex_asc);
if (endptr)
{
@@ -670,22 +659,6 @@ read_register (char regno, unsigned int *valptr)
}
/********************************** Packet I/O ******************************/
-/* Returns the character equivalent of a nibble, bit 7, 6, 5, and 4 of a byte,
- represented by int x. */
-static inline char
-highhex(int x)
-{
- return hexchars[(x >> 4) & 0xf];
-}
-
-/* Returns the character equivalent of a nibble, bit 3, 2, 1, and 0 of a byte,
- represented by int x. */
-static inline char
-lowhex(int x)
-{
- return hexchars[x & 0xf];
-}
-
/* Returns the integer equivalent of a hexadecimal character. */
static int
hex (char ch)
@@ -721,8 +694,7 @@ mem2hex(char *buf, unsigned char *mem, int count)
/* Valid mem address. */
for (i = 0; i < count; i++) {
ch = *mem++;
- *buf++ = highhex (ch);
- *buf++ = lowhex (ch);
+ buf = pack_hex_byte(buf, ch);
}
}
@@ -857,9 +829,9 @@ putpacket(char *buffer)
src++;
}
}
- putDebugChar ('#');
- putDebugChar (highhex (checksum));
- putDebugChar (lowhex (checksum));
+ putDebugChar('#');
+ putDebugChar(hex_asc_hi(checksum));
+ putDebugChar(hex_asc_lo(checksum));
} while(kgdb_started && (getDebugChar() != '+'));
}
@@ -895,9 +867,8 @@ stub_is_stopped(int sigval)
/* Send trap type (converted to signal) */
- *ptr++ = 'T';
- *ptr++ = highhex (sigval);
- *ptr++ = lowhex (sigval);
+ *ptr++ = 'T';
+ ptr = pack_hex_byte(ptr, sigval);
/* Send register contents. We probably only need to send the
* PC, frame pointer and stack pointer here. Other registers will be
@@ -910,9 +881,7 @@ stub_is_stopped(int sigval)
status = read_register (regno, ®_cont);
if (status == SUCCESS) {
-
- *ptr++ = highhex (regno);
- *ptr++ = lowhex (regno);
+ ptr = pack_hex_byte(ptr, regno);
*ptr++ = ':';
ptr = mem2hex(ptr, (unsigned char *)®_cont,
@@ -937,8 +906,8 @@ stub_is_stopped(int sigval)
/* Store thread:r...; with the executing task TID. */
gdb_cris_strcpy (&remcomOutBuffer[pos], "thread:");
pos += gdb_cris_strlen ("thread:");
- remcomOutBuffer[pos++] = highhex (executing_task);
- remcomOutBuffer[pos++] = lowhex (executing_task);
+ remcomOutBuffer[pos++] = hex_asc_hi(executing_task);
+ remcomOutBuffer[pos++] = hex_asc_lo(executing_task);
gdb_cris_strcpy (&remcomOutBuffer[pos], ";");
#endif
@@ -1126,8 +1095,8 @@ handle_exception (int sigval)
Success: SAA, where AA is the signal number.
Failure: void. */
remcomOutBuffer[0] = 'S';
- remcomOutBuffer[1] = highhex (sigval);
- remcomOutBuffer[2] = lowhex (sigval);
+ remcomOutBuffer[1] = hex_asc_hi(sigval);
+ remcomOutBuffer[2] = hex_asc_lo(sigval);
remcomOutBuffer[3] = 0;
break;
@@ -1224,23 +1193,23 @@ handle_exception (int sigval)
case 'C':
/* Identify the remote current thread. */
gdb_cris_strcpy (&remcomOutBuffer[0], "QC");
- remcomOutBuffer[2] = highhex (current_thread_c);
- remcomOutBuffer[3] = lowhex (current_thread_c);
+ remcomOutBuffer[2] = hex_asc_hi(current_thread_c);
+ remcomOutBuffer[3] = hex_asc_lo(current_thread_c);
remcomOutBuffer[4] = '\0';
break;
case 'L':
gdb_cris_strcpy (&remcomOutBuffer[0], "QM");
/* Reply with number of threads. */
if (os_is_started()) {
- remcomOutBuffer[2] = highhex (number_of_tasks);
- remcomOutBuffer[3] = lowhex (number_of_tasks);
+ remcomOutBuffer[2] = hex_asc_hi(number_of_tasks);
+ remcomOutBuffer[3] = hex_asc_lo(number_of_tasks);
}
else {
- remcomOutBuffer[2] = highhex (0);
- remcomOutBuffer[3] = lowhex (1);
+ remcomOutBuffer[2] = hex_asc_hi(0);
+ remcomOutBuffer[3] = hex_asc_lo(1);
}
/* Done with the reply. */
- remcomOutBuffer[4] = lowhex (1);
+ remcomOutBuffer[4] = hex_asc_lo(1);
pos = 5;
/* Expects the argument thread id. */
for (; pos < (5 + HEXCHARS_IN_THREAD_ID); pos++)
@@ -1251,16 +1220,16 @@ handle_exception (int sigval)
for (thread_id = 0; thread_id < number_of_tasks; thread_id++) {
nextpos = pos + HEXCHARS_IN_THREAD_ID - 1;
for (; pos < nextpos; pos ++)
- remcomOutBuffer[pos] = lowhex (0);
- remcomOutBuffer[pos++] = lowhex (thread_id);
+ remcomOutBuffer[pos] = hex_asc_lo(0);
+ remcomOutBuffer[pos++] = hex_asc_lo(thread_id);
}
}
else {
/* Store the thread identifier of the boot task. */
nextpos = pos + HEXCHARS_IN_THREAD_ID - 1;
for (; pos < nextpos; pos ++)
- remcomOutBuffer[pos] = lowhex (0);
- remcomOutBuffer[pos++] = lowhex (current_thread_c);
+ remcomOutBuffer[pos] = hex_asc_lo(0);
+ remcomOutBuffer[pos++] = hex_asc_lo(current_thread_c);
}
remcomOutBuffer[pos] = '\0';
break;
diff --git a/arch/cris/arch-v32/kernel/kgdb.c b/arch/cris/arch-v32/kernel/kgdb.c
index 4e2e2e2..8bd5a5b 100644
--- a/arch/cris/arch-v32/kernel/kgdb.c
+++ b/arch/cris/arch-v32/kernel/kgdb.c
@@ -398,14 +398,6 @@ void putDebugChar(int val)
}
#endif
-/* Returns the character equivalent of a nibble, bit 7, 6, 5, and 4 of a byte,
- represented by int x. */
-static char highhex(int x);
-
-/* Returns the character equivalent of a nibble, bit 3, 2, 1, and 0 of a byte,
- represented by int x. */
-static char lowhex(int x);
-
/* Returns the integer equivalent of a hexadecimal character. */
static int hex(char ch);
@@ -464,9 +456,6 @@ void breakpoint(void);
/* Run-length encoding maximum length. Send 64 at most. */
#define RUNLENMAX 64
-/* Definition of all valid hexadecimal characters */
-static const char hexchars[] = "0123456789abcdef";
-
/* The inbound/outbound buffers used in packet I/O */
static char input_buffer[BUFMAX];
static char output_buffer[BUFMAX];
@@ -550,8 +539,8 @@ gdb_cris_strtol(const char *s, char **endptr, int base)
char *sd;
int x = 0;
- for (s1 = (char*)s; (sd = gdb_cris_memchr(hexchars, *s1, base)) != NULL; ++s1)
- x = x * base + (sd - hexchars);
+ for (s1 = (char*)s; (sd = gdb_cris_memchr(hex_asc, *s1, base)) != NULL; ++s1)
+ x = x * base + (sd - hex_asc);
if (endptr) {
/* Unconverted suffix is stored in endptr unless endptr is NULL. */
@@ -655,22 +644,6 @@ read_register(char regno, unsigned int *valptr)
}
/********************************** Packet I/O ******************************/
-/* Returns the character equivalent of a nibble, bit 7, 6, 5, and 4 of a byte,
- represented by int x. */
-static inline char
-highhex(int x)
-{
- return hexchars[(x >> 4) & 0xf];
-}
-
-/* Returns the character equivalent of a nibble, bit 3, 2, 1, and 0 of a byte,
- represented by int x. */
-static inline char
-lowhex(int x)
-{
- return hexchars[x & 0xf];
-}
-
/* Returns the integer equivalent of a hexadecimal character. */
static int
hex(char ch)
@@ -704,8 +677,7 @@ mem2hex(char *buf, unsigned char *mem, int count)
/* Valid mem address. */
for (i = 0; i < count; i++) {
ch = *mem++;
- *buf++ = highhex (ch);
- *buf++ = lowhex (ch);
+ buf = pack_hex_byte(buf, ch);
}
}
/* Terminate properly. */
@@ -723,8 +695,7 @@ mem2hex_nbo(char *buf, unsigned char *mem, int count)
mem += count - 1;
for (i = 0; i < count; i++) {
ch = *mem--;
- *buf++ = highhex (ch);
- *buf++ = lowhex (ch);
+ buf = pack_hex_byte(buf, ch);
}
/* Terminate properly. */
@@ -862,8 +833,8 @@ putpacket(char *buffer)
}
}
putDebugChar('#');
- putDebugChar(highhex (checksum));
- putDebugChar(lowhex (checksum));
+ putDebugChar(hex_asc_hi(checksum));
+ putDebugChar(hex_asc_lo(checksum));
} while(kgdb_started && (getDebugChar() != '+'));
}
@@ -909,8 +880,7 @@ stub_is_stopped(int sigval)
/* Send trap type (converted to signal) */
*ptr++ = 'T';
- *ptr++ = highhex(sigval);
- *ptr++ = lowhex(sigval);
+ ptr = pack_hex_byte(ptr, sigval);
if (((reg.exs & 0xff00) >> 8) == 0xc) {
@@ -1018,30 +988,26 @@ stub_is_stopped(int sigval)
}
/* Only send PC, frame and stack pointer. */
read_register(PC, ®_cont);
- *ptr++ = highhex(PC);
- *ptr++ = lowhex(PC);
+ ptr = pack_hex_byte(PC);
*ptr++ = ':';
ptr = mem2hex(ptr, (unsigned char *)®_cont, register_size[PC]);
*ptr++ = ';';
read_register(R8, ®_cont);
- *ptr++ = highhex(R8);
- *ptr++ = lowhex(R8);
+ ptr = pack_hex_byte(R8);
*ptr++ = ':';
ptr = mem2hex(ptr, (unsigned char *)®_cont, register_size[R8]);
*ptr++ = ';';
read_register(SP, ®_cont);
- *ptr++ = highhex(SP);
- *ptr++ = lowhex(SP);
+ ptr = pack_hex_byte(SP);
*ptr++ = ':';
ptr = mem2hex(ptr, (unsigned char *)®_cont, register_size[SP]);
*ptr++ = ';';
/* Send ERP as well; this will save us an entire register fetch in some cases. */
read_register(ERP, ®_cont);
- *ptr++ = highhex(ERP);
- *ptr++ = lowhex(ERP);
+ ptr = pack_hex_byte(ERP);
*ptr++ = ':';
ptr = mem2hex(ptr, (unsigned char *)®_cont, register_size[ERP]);
*ptr++ = ';';
@@ -1533,8 +1499,8 @@ handle_exception(int sigval)
Success: SAA, where AA is the signal number.
Failure: void. */
output_buffer[0] = 'S';
- output_buffer[1] = highhex(sigval);
- output_buffer[2] = lowhex(sigval);
+ output_buffer[1] = hex_asc_hi(sigval);
+ output_buffer[2] = hex_asc_lo(sigval);
output_buffer[3] = 0;
break;
--
1.5.5.1.404.g981f6
--
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