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- the 'help' command now takes an optional argument to display help only on a certain command (thanks to Andrew Dyer for this enhancement)

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- OpenOCD now includes the ability to diassemble instructions on its own (only ARM for now, Thumb might follow). 
The command is "armv4_5 disassemble <address> <count> ['thumb']" (thumb is currently unsupported).
I've compared the produced disassembly against GDB/GNU Objdump output, and it seems to be correct, but there may still be some bugs left.


git-svn-id: svn://svn.berlios.de/openocd/trunk@68 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
drath
2006-06-12 16:49:49 +00:00
parent 335f667d44
commit b9628accd6
5 changed files with 1403 additions and 2 deletions
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44
src/target/armv4_5.c
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@@ -19,6 +19,8 @@
***************************************************************************/
#include "config.h"
#include "arm_disassembler.h"
#include "armv4_5.h"
#include "target.h"
@@ -377,6 +379,47 @@ int handle_armv4_5_core_state_command(struct command_context_s *cmd_ctx, char *c
return ERROR_OK;
}
int handle_armv4_5_disassemble_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
armv4_5_common_t *armv4_5 = target->arch_info;
u32 address;
int count;
int i;
arm_instruction_t cur_instruction;
u32 opcode;
int thumb;
if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
{
command_print(cmd_ctx, "current target isn't an ARMV4/5 target");
return ERROR_OK;
}
if (argc < 2)
{
command_print(cmd_ctx, "usage: armv4_5 disassemble <address> <count> ['thumb']");
return ERROR_OK;
}
address = strtoul(args[0], NULL, 0);
count = strtoul(args[1], NULL, 0);
if (argc >= 3)
if (strcmp(args[2], "thumb") == 0)
thumb = 1;
for (i = 0; i < count; i++)
{
target->type->read_memory(target, address, 4, 1, (u8*)&opcode);
evaluate_opcode(opcode, address, &cur_instruction);
command_print(cmd_ctx, "%s", cur_instruction.text);
address += (thumb) ? 2 : 4;
}
return ERROR_OK;
}
int armv4_5_register_commands(struct command_context_s *cmd_ctx)
{
command_t *armv4_5_cmd;
@@ -386,6 +429,7 @@ int armv4_5_register_commands(struct command_context_s *cmd_ctx)
register_command(cmd_ctx, armv4_5_cmd, "reg", handle_armv4_5_reg_command, COMMAND_EXEC, "display ARM core registers");
register_command(cmd_ctx, armv4_5_cmd, "core_state", handle_armv4_5_core_state_command, COMMAND_EXEC, "display/change ARM core state <arm|thumb>");
register_command(cmd_ctx, armv4_5_cmd, "disassemble", handle_armv4_5_disassemble_command, COMMAND_EXEC, "disassemble instructions <address> <count> ['thumb']");
return ERROR_OK;
}