armv7m: Integrate build of checksum code

Add rules to build armv7m_crc.inc and include it via preprocessor.

Change-Id: I4482c7acb8454de28bdf210d9f06c0720ada490a
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3474
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

diff --git a/contrib/loaders/checksum/Makefile b/contrib/loaders/checksum/Makefile
new file mode 100644 (file)
index 0000000..393c160
--- /dev/null
+++ b/contrib/loaders/checksum/Makefile
@@ -0,0 +1,19 @@
+BIN2C = ../../../src/helper/bin2char.sh
+
+ARM_CROSS_COMPILE ?= arm-none-eabi-
+ARM_AS      ?= $(ARM_CROSS_COMPILE)as
+ARM_OBJCOPY ?= $(ARM_CROSS_COMPILE)objcopy
+
+arm: armv7m_crc.inc
+
+armv7m_%.elf: armv7m_%.s
+       $(ARM_AS) $< -o $@
+
+armv7m_%.bin: armv7m_%.elf
+       $(ARM_OBJCOPY) -Obinary $< $@
+
+armv7m_%.inc: armv7m_%.bin
+       $(BIN2C) < $< > $@
+
+clean:
+       -rm -f *.elf *.bin *.inc

diff --git a/contrib/loaders/checksum/armv7m_crc.inc b/contrib/loaders/checksum/armv7m_crc.inc
new file mode 100644 (file)
index 0000000..1b013fd
--- /dev/null
+++ b/contrib/loaders/checksum/armv7m_crc.inc
@@ -0,0 +1,5 @@
+/* Autogenerated with ../../../src/helper/bin2char.sh */
+0x02,0x46,0x00,0x20,0xc0,0x43,0x0a,0x4e,0x0b,0x46,0x00,0x24,0x0d,0xe0,0x11,0x5d,
+0x09,0x06,0x48,0x40,0x00,0x25,0x00,0x28,0x02,0xda,0x40,0x00,0x70,0x40,0x00,0xe0,
+0x40,0x00,0x01,0x35,0x08,0x2d,0xf6,0xd1,0x01,0x34,0x9c,0x42,0xef,0xd1,0x00,0xbe,
+0xb7,0x1d,0xc1,0x04,

diff --git a/src/target/armv7m.c b/src/target/armv7m.c
index 8662003e3d39474df34e6c54b13eb7770514cd3e..8432a419a752f4a9227049043b9f3feceb69e1f5 100644 (file)
--- a/src/target/armv7m.c
+++ b/src/target/armv7m.c
@@ -686,40 +686,8 @@ int armv7m_checksum_memory(struct target *target,
        struct reg_param reg_params[2];
        int retval;
 
-       /* see contrib/loaders/checksum/armv7m_crc.s for src */
-
        static const uint8_t cortex_m_crc_code[] = {
-               /* main: */
-               0x02, 0x46,                     /* mov          r2, r0 */
-               0x00, 0x20,                     /* movs         r0, #0 */
-               0xC0, 0x43,                     /* mvns         r0, r0 */
-               0x0A, 0x4E,                     /* ldr          r6, CRC32XOR */
-               0x0B, 0x46,                     /* mov          r3, r1 */
-               0x00, 0x24,                     /* movs         r4, #0 */
-               0x0D, 0xE0,                     /* b            ncomp */
-               /* nbyte: */
-               0x11, 0x5D,                     /* ldrb         r1, [r2, r4] */
-               0x09, 0x06,                     /* lsls         r1, r1, #24 */
-               0x48, 0x40,                     /* eors         r0, r0, r1 */
-               0x00, 0x25,                     /* movs         r5, #0 */
-               /* loop: */
-               0x00, 0x28,                     /* cmp          r0, #0 */
-               0x02, 0xDA,                     /* bge          notset */
-               0x40, 0x00,                     /* lsls         r0, r0, #1 */
-               0x70, 0x40,                     /* eors         r0, r0, r6 */
-               0x00, 0xE0,                     /* b            cont */
-               /* notset: */
-               0x40, 0x00,                     /* lsls         r0, r0, #1 */
-               /* cont: */
-               0x01, 0x35,                     /* adds         r5, r5, #1 */
-               0x08, 0x2D,                     /* cmp          r5, #8 */
-               0xF6, 0xD1,                     /* bne          loop */
-               0x01, 0x34,                     /* adds         r4, r4, #1 */
-               /* ncomp: */
-               0x9C, 0x42,                     /* cmp          r4, r3 */
-               0xEF, 0xD1,                     /* bne          nbyte */
-               0x00, 0xBE,                     /* bkpt         #0 */
-               0xB7, 0x1D, 0xC1, 0x04  /* CRC32XOR:    .word   0x04c11db7 */
+#include "../../contrib/loaders/checksum/armv7m_crc.inc"
        };
 
        retval = target_alloc_working_area(target, sizeof(cortex_m_crc_code), &crc_algorithm);