Added target.c for common target routines.

src/Makefile

@@ -30,6 +30,7 @@ SRC = 	gdb_if.c	\
 	stm32f4.c	\
 	crc32.c		\
 	sam3x.c		\
+	target.c	\
 
 include $(PLATFORM_DIR)/Makefile.inc
 

src/adiv5.c

@@ -40,11 +40,6 @@
 #define DO_RESET_SEQ 0
 #endif
 
-/* This belongs elsewhere... */
-target *target_list = NULL;
-target *cur_target = NULL;
-target *last_target = NULL;
-
 static const char adiv5_driver_str[] = "ARM ADIv5 MEM-AP";
 
 ADIv5_DP_t *adiv5_dp_list;
@@ -130,9 +125,7 @@ void adiv5_dp_init(ADIv5_DP_t *dp)
 		/* Should probe further here... */
 
 		/* Prepend to target list... */
-		t = (void*)calloc(1, sizeof(struct target_ap_s));
-		t->next = target_list;
-		target_list = t;
+		t = target_new(sizeof(struct target_ap_s));
 		((struct target_ap_s *)t)->ap = ap;
 
 		t->driver = adiv5_driver_str;

src/adiv5_swdp.c

@@ -50,7 +50,7 @@ int adiv5_swdp_scan(void)
 	ADIv5_DP_t *dp;
 	uint8_t ack;
 
-	TARGET_LIST_FREE();
+	target_list_free();
 #warning "These should be elsewhere!"
 	adiv5_free_all();
 

src/arm7tdmi.c

@@ -117,7 +117,7 @@ static void arm7_halt_resume(struct target_s *target, uint8_t step);
 
 void arm7tdmi_jtag_handler(jtag_dev_t *dev)
 {
-	struct target_arm7_s *tj = calloc(1, sizeof(*tj));
+	struct target_arm7_s *tj = (void*)target_new(sizeof(*tj));
 	target *t = (target *)tj;
 
 	t->driver = arm7_driver_str;
@@ -143,9 +143,6 @@ void arm7tdmi_jtag_handler(jtag_dev_t *dev)
 	/* TODO: Breakpoint and watchpoint functions. */
 	/* TODO: Fault unwinder. */
 	/* TODO: Memory map / Flash programming. */
-
-	t->next = target_list;
-	target_list = t;
 }
 
 static void arm7_select_scanchain(struct target_arm7_s *target, uint8_t chain)

src/include/target.h

@@ -25,6 +25,11 @@
 #ifndef __TARGET_H
 #define __TARGET_H
 
+typedef struct target_s target;
+
+target *target_new(unsigned size);
+void target_list_free(void);
+
 /* Halt/resume functions */
 #define target_attach(target)	\
 	(target)->attach(target)
@@ -106,18 +111,7 @@
 #define target_flash_write(target, dest, src, len)	\
 	(target)->flash_write((target), (dest), (src), (len))
 
-
-#define TARGET_LIST_FREE() {				\
-	while(target_list) {				\
-		target *t = target_list->next;		\
-		free(target_list);			\
-		target_list = t;			\
-	}						\
-	last_target = cur_target = NULL;		\
-}
-
-
-typedef struct target_s {
+struct target_s {
 	/* Attach/Detach funcitons */
 	void (*attach)(struct target_s *target);
 	void (*detach)(struct target_s *target);
@@ -173,7 +167,7 @@ typedef struct target_s {
 
 	int size;
 	struct target_s *next;
-} target;
+};
 
 extern target *target_list, *cur_target, *last_target;
 

src/jtag_scan.c

@@ -102,7 +102,7 @@ int jtag_scan(void)
 	int i;
 	uint32_t j;
 
-	TARGET_LIST_FREE();
+	target_list_free();
 
 	jtag_dev_count = 0;
 	memset(&jtag_devs, 0, sizeof(jtag_devs));

src/platforms/native/platform.h

@@ -126,7 +126,7 @@ extern const char *morse_msg;
 	if(running_status) gdb_putpacketz("X1D");	\
 		else gdb_putpacketz("EFF");		\
 	running_status = 0;				\
-	TARGET_LIST_FREE();				\
+	target_list_free();				\
 	cur_target = last_target = NULL;		\
 	morse("TARGET LOST.", 1);			\
 	longjmp(fatal_error_jmpbuf, (error));		\

src/platforms/stlink/platform.h

@@ -98,7 +98,7 @@ extern const char *morse_msg;
 	if(running_status) gdb_putpacketz("X1D");	\
 		else gdb_putpacketz("EFF");		\
 	running_status = 0;				\
-	TARGET_LIST_FREE();				\
+	target_list_free();				\
 	cur_target = last_target = NULL;		\
 	longjmp(fatal_error_jmpbuf, (error));		\
 }

src/target.c

@@ -0,0 +1,48 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2012  Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "general.h"
+#include "target.h"
+
+#include <stdlib.h>
+
+target *target_list = NULL;
+target *cur_target = NULL;
+target *last_target = NULL;
+
+target *target_new(unsigned size)
+{
+	target *t = (void*)calloc(1, size);
+	t->next = target_list;
+	target_list = t;
+
+	return t;
+}
+
+void target_list_free(void)
+{
+	while(target_list) {
+		target *t = target_list->next;
+		free(target_list);
+		target_list = t;
+	}
+	last_target = cur_target = NULL;
+}
+