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-rw-r--r--Debugger/debug_stub.S199
1 files changed, 8 insertions, 191 deletions
diff --git a/Debugger/debug_stub.S b/Debugger/debug_stub.S
index 030ce40..ec6432e 100644
--- a/Debugger/debug_stub.S
+++ b/Debugger/debug_stub.S
@@ -1,3 +1,7 @@
+/** @file debug_stub.S
+ * @brief ARM Breakpoint Debugger support routines
+ *
+ */
/* Copyright (C) 2007-2010 the NxOS developers
*
@@ -5,8 +9,8 @@
*
* See AUTHORS for a full list of the developers.
*
- * Redistribution of this file is permitted under
- * the terms of the GNU Public License (GPL) version 2.
+ * See COPYING for redistribution license
+ *
*/
/* GDB sparc-stub.c comments header included below to document GDB Server Remote protocol */
@@ -108,6 +112,7 @@
#define __ASSEMBLY__
#include "debug_stub.h"
+#include "debug_macros.h"
.bss
.align 4
@@ -183,194 +188,6 @@ debug_cmdJumpTable:
.extern dbg__getDebugMsg /* Read a message from the communications link */
.extern dbg__putDebugMsg /* Write a message to the communications link */
-/* _dbg_jumpTableHandler
- * Call Jump Table Routine based on Index
- * On entry:
- * jumptableaddr is the address (constant) of the Jump Table
- * jumpreg is the register used to perform the indirect jump
- * indexreg contains jump table index value
- */
- .macro _dbg_jumpTableHandler jumptableaddr, jumpreg, indexreg
-
- ldr \jumpreg, =\jumptableaddr
- ldr \jumpreg, [\jumpreg, \indexreg, lsl #2]
- mov lr, pc
- bx \jumpreg /* Call Command Handler Routine */
- .endm
-
-
-/* _dbg_stpcpy
- * _dbg_stpcpy macro
- * On entry:
- * deststrptr: Destination string [Cannot be R0]
- * sourcestrptr: Source string [Cannot be R0]
- * On exit:
- * deststrptr: Pointer to NULL character in destination string
- * R0: destroyed
- */
- .macro _dbg_stpcpy deststrptr, sourcestrptr
-1: ldrb r0, [\sourcestrptr], #1
- strb r0, [\deststrptr], #1
- teq r0, #0
- bne 1b
- sub \deststrptr, \deststrptr, #1 /* Adjust Destination string pointer to point at NULL character */
- .endm
-
-/* _dbg_outputMsgValidResponse
- * Return Message with valid response ('+$')
- * On exit:
- * R0: destroyed
- * R1: points to NULL character after the prefix
- * R2: destroyed
- */
- .macro _dbg_outputMsgValidResponse
- ldr r1, =debug_OutMsgBuf
- ldr r2, =debug_ValidResponsePrefix
- _dbg_stpcpy r1, r2
- .endm
-
-
-/* _dbg_outputMsgStatusOk
- * Return Message with Ok ('+OK') status
- * On exit:
- * R0: destroyed
- * R1: destroyed
- * R2: destroyed
- */
- .macro _dbg_outputMsgStatusOk
- ldr r1, =debug_OutMsgBuf
- ldr r2, =debug_OkResponse
- _dbg_stpcpy r1, r2
- .endm
-
-/* _dbg_outputMsgStatusErr
- * Return Message with Error ('-ENN') status
- * On entry:
- * R0: register containing error value (byte)
- * On exit:
- * R0: destroyed
- * R1: destroyed
- * R2: destroyed
- * R3: destroyed
- */
- .macro _dbg_outputMsgStatusErr
- mov r3, r0
- ldr r1, =debug_OutMsgBuf
- ldr r2, =debug_ErrorResponsePrefix
- _dbg_stpcpy r1, r2
- mov r0, r3
- bl byte2ascii /* R1 points to NULL character after the prefix */
- .endm
-
-/* _dbg_outputMsgStatusSig
- * Return Message with Signal ('+SNN') status
- * On entry:
- * R0: register containing error value (byte)
- * On exit:
- * R0: destroyed
- * R1: destroyed
- * R2: destroyed
- * R3: destroyed
- */
- .macro _dbg_outputMsgStatusSig
- mov r3, r0
- ldr r1, =debug_OutMsgBuf
- ldr r2, =debug_SignalResponsePrefix
- _dbg_stpcpy r1, r2
- mov r0, r3
- bl byte2ascii /* R1 points to NULL character after the prefix */
- .endm
-
-/* _index2dbgstackaddr
- * Convert debugger stack index to Debugger Stack register address
- *
- * On entry:
- * indexreg contains debugger stack index value (0-max entries)
- * On exit:
- * indexreg: Breakpoint index (preserved)
- * addrreg: Debugger Stack Register Address
- */
- .macro _index2dbgstackaddr indexreg, addrreg
- ldr \addrreg, =__debugger_stack_bottom__
- add \addrreg, \addrreg, \indexreg, lsl #2 /* Calculate Debugger Stack Register Address */
- .endm
-
-/* _index2bkptindex_addr
- * Convert Breakpoint index to breakpoing entry address
- *
- * On entry:
- * indexreg contains breakpoint index value
- * On exit:
- * indexreg: Breakpoint index (preserved)
- * addrreg: Breakpoint Entry Address
- */
- .macro _index2bkptindex_addr indexreg, addrreg
- ldr \addrreg, =__breakpoints_start__
- add \addrreg, \addrreg, \indexreg, lsl #3 /* Calculate Breakpoint Entry Address */
- .endm
-
-/* _dbg_getstate
- * Get Debugger State
- * On exit:
- * reg: Debugger State enum
- */
- .macro _dbg_getstate reg
- ldr \reg, =debug_state
- ldr \reg, [\reg]
- .endm
-
-/* _dbg_setstate
- * Set Debugger State to given value
- * On exit:
- * r0, r1: destroyed
- */
- .macro _dbg_setstate state
- ldr r0, =\state
- ldr r1, =debug_state
- str r0, [r1]
- .endm
-
-/* _dbg_getcurrbkpt_index
- * Get current breakpoint index
- * On exit:
- * reg: Breakpoint index
- */
- .macro _dbg_getcurrbkpt_index reg
- ldr \reg, =debug_curr_breakpoint
- ldr \reg, [\reg]
- .endm
-
-/* _dbg_setcurrbkpt_index
- * Set current breakpoint index
- * On exit:
- * r1: destroyed
- */
- .macro _dbg_setcurrbkpt_index reg
- ldr r1, =debug_curr_breakpoint
- str \reg, [r1]
- .endm
-
-/* _dbg_getabortedinstr_addr
- * Get aborted instruction address
- * On exit:
- * reg: aborted instruction address
- */
- .macro _dbg_getabortedinstr_addr reg
- ldr \reg, =__debugger_stack_bottom__
- ldr \reg, [\reg]
- .endm
-
-/* _dbg_setabortedinstr_addr
- * Set aborted instruction address
- * On exit:
- * r1: destroyed
- */
- .macro _dbg_setabortedinstr_addr reg
- ldr r1, =__debugger_stack_bottom__
- str \reg, [r1]
- .endm
-
-
/* The Debugger Interface can handle a total of (n-1) Breakpoint States and 1 Single Stepping State,
* where n is a power of 2. The value of n is given by __breakpoints_num__ defined in the linker file.
@@ -1273,7 +1090,7 @@ _dbg_next_instruction_addr:
beq _next_instr_is_arm
_next_instr_is_thumb:
add r5, r2, #2 /* set next Thumb instruction address */
- _is_thumb_branch_instr r0 /* check if the current instruction is a branch instruction */
+ /*_is_thumb_branch_instr r0 */ /* check if the current instruction is a branch instruction */
_next_instr_is_arm:
add r5, r2, #4 /* Is ARM, set next ARM instruction address */
@@@@@@@@@