[PATCH 1/2]support64: Add functions into types and target

Add functions into types.h, target.c, target.h to operate 64bits data.
Prepare for 64bits mips target.

Change-Id: I668a8a5ac12ba754ae310fa6e92cfc91af850b1c
Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Reviewed-on: http://openocd.zylin.com/1700
Tested-by: jenkins
Reviewed-by: Mathias Küster <kesmtp@freenet.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

diff --git a/src/helper/types.h b/src/helper/types.h
index 7a845284e4467cd8f4db5fad568eebfe02f50828..210d3c3e92fd3d2f1354e8eb0066a41da9a703cd 100644 (file)
--- a/src/helper/types.h
+++ b/src/helper/types.h
@@ -110,6 +110,17 @@ typedef bool _Bool;
  * Again, note that the "buf" pointer in memory is probably unaligned.
  */
 
+static inline uint64_t le_to_h_u64(const uint8_t *buf)
+{
+       return (uint64_t)((uint64_t)buf[0] |
+                         (uint64_t)buf[1] << 8 |
+                         (uint64_t)buf[2] << 16 |
+                         (uint64_t)buf[3] << 24 |
+                         (uint64_t)buf[4] << 32 |
+                         (uint64_t)buf[5] << 40 |
+                         (uint64_t)buf[6] << 48 |
+                         (uint64_t)buf[7] << 56);
+}
 
 static inline uint32_t le_to_h_u32(const uint8_t* buf)
 {
@@ -126,6 +137,18 @@ static inline uint16_t le_to_h_u16(const uint8_t* buf)
        return (uint16_t)(buf[0] | buf[1] << 8);
 }
 
+static inline uint64_t be_to_h_u64(const uint8_t *buf)
+{
+       return (uint64_t)((uint64_t)buf[7] |
+                         (uint64_t)buf[6] << 8 |
+                         (uint64_t)buf[5] << 16 |
+                         (uint64_t)buf[4] << 24 |
+                         (uint64_t)buf[3] << 32 |
+                         (uint64_t)buf[2] << 40 |
+                         (uint64_t)buf[1] << 48 |
+                         (uint64_t)buf[0] << 56);
+}
+
 static inline uint32_t be_to_h_u32(const uint8_t* buf)
 {
        return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
@@ -141,6 +164,30 @@ static inline uint16_t be_to_h_u16(const uint8_t* buf)
        return (uint16_t)(buf[1] | buf[0] << 8);
 }
 
+static inline void h_u64_to_le(uint8_t *buf, int64_t val)
+{
+       buf[7] = (uint8_t) (val >> 56);
+       buf[6] = (uint8_t) (val >> 48);
+       buf[5] = (uint8_t) (val >> 40);
+       buf[4] = (uint8_t) (val >> 32);
+       buf[3] = (uint8_t) (val >> 24);
+       buf[2] = (uint8_t) (val >> 16);
+       buf[1] = (uint8_t) (val >> 8);
+       buf[0] = (uint8_t) (val >> 0);
+}
+
+static inline void h_u64_to_be(uint8_t *buf, int64_t val)
+{
+       buf[0] = (uint8_t) (val >> 56);
+       buf[1] = (uint8_t) (val >> 48);
+       buf[2] = (uint8_t) (val >> 40);
+       buf[3] = (uint8_t) (val >> 32);
+       buf[4] = (uint8_t) (val >> 24);
+       buf[5] = (uint8_t) (val >> 16);
+       buf[6] = (uint8_t) (val >> 8);
+       buf[7] = (uint8_t) (val >> 0);
+}
+
 static inline void h_u32_to_le(uint8_t* buf, int val)
 {
        buf[3] = (uint8_t) (val >> 24);

diff --git a/src/target/target.c b/src/target/target.c
index 3042d5d6cf0a43ab698175c55897739435574d1b..cb54ced5e5733ac42044b37371f498d4a55103c9 100644 (file)
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -294,6 +294,15 @@ static int new_target_number(void)
        return x + 1;
 }
 
+/* read a uint64_t from a buffer in target memory endianness */
+uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
+{
+       if (target->endianness == TARGET_LITTLE_ENDIAN)
+               return le_to_h_u64(buffer);
+       else
+               return be_to_h_u64(buffer);
+}
+
 /* read a uint32_t from a buffer in target memory endianness */
 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 {
@@ -327,6 +336,15 @@ static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer
        return *buffer & 0x0ff;
 }
 
+/* write a uint64_t to a buffer in target memory endianness */
+void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
+{
+       if (target->endianness == TARGET_LITTLE_ENDIAN)
+               h_u64_to_le(buffer, value);
+       else
+               h_u64_to_be(buffer, value);
+}
+
 /* write a uint32_t to a buffer in target memory endianness */
 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 {
@@ -360,6 +378,14 @@ static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t
        *buffer = value;
 }
 
+/* write a uint64_t array to a buffer in target memory endianness */
+void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
+{
+       uint32_t i;
+       for (i = 0; i < count; i++)
+               dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
+}
+
 /* write a uint32_t array to a buffer in target memory endianness */
 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 {
@@ -376,6 +402,14 @@ void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, u
                dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 }
 
+/* write a uint64_t array to a buffer in target memory endianness */
+void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
+{
+       uint32_t i;
+       for (i = 0; i < count; i++)
+               target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
+}
+
 /* write a uint32_t array to a buffer in target memory endianness */
 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 {
@@ -1983,6 +2017,30 @@ int target_blank_check_memory(struct target *target, uint32_t address, uint32_t
        return retval;
 }
 
+int target_read_u64(struct target *target, uint64_t address, uint64_t *value)
+{
+       uint8_t value_buf[8];
+       if (!target_was_examined(target)) {
+               LOG_ERROR("Target not examined yet");
+               return ERROR_FAIL;
+       }
+
+       int retval = target_read_memory(target, address, 8, 1, value_buf);
+
+       if (retval == ERROR_OK) {
+               *value = target_buffer_get_u64(target, value_buf);
+               LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
+                                 address,
+                                 *value);
+       } else {
+               *value = 0x0;
+               LOG_DEBUG("address: 0x%" PRIx64 " failed",
+                                 address);
+       }
+
+       return retval;
+}
+
 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
 {
        uint8_t value_buf[4];
@@ -2053,6 +2111,27 @@ int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
        return retval;
 }
 
+int target_write_u64(struct target *target, uint64_t address, uint64_t value)
+{
+       int retval;
+       uint8_t value_buf[8];
+       if (!target_was_examined(target)) {
+               LOG_ERROR("Target not examined yet");
+               return ERROR_FAIL;
+       }
+
+       LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
+                         address,
+                         value);
+
+       target_buffer_set_u64(target, value_buf, value);
+       retval = target_write_memory(target, address, 8, 1, value_buf);
+       if (retval != ERROR_OK)
+               LOG_DEBUG("failed: %i", retval);
+
+       return retval;
+}
+
 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
 {
        int retval;

diff --git a/src/target/target.h b/src/target/target.h
index 124dc9b709b4af0bef06f8c82216d88f8216132b..21b94eea8a583fd5f84d8c8159a60542ab180bf8 100644 (file)
--- a/src/target/target.h
+++ b/src/target/target.h
@@ -593,21 +593,27 @@ uint32_t target_get_working_area_avail(struct target *target);
 
 extern struct target *all_targets;
 
+uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer);
 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer);
 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer);
 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer);
+void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value);
 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value);
 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value);
 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value);
 
+void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf);
 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf);
 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf);
+void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf);
 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf);
 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf);
 
+int target_read_u64(struct target *target, uint64_t address, uint64_t *value);
 int target_read_u32(struct target *target, uint32_t address, uint32_t *value);
 int target_read_u16(struct target *target, uint32_t address, uint16_t *value);
 int target_read_u8(struct target *target, uint32_t address, uint8_t *value);
+int target_write_u64(struct target *target, uint64_t address, uint64_t value);
 int target_write_u32(struct target *target, uint32_t address, uint32_t value);
 int target_write_u16(struct target *target, uint32_t address, uint16_t value);
 int target_write_u8(struct target *target, uint32_t address, uint8_t value);