#ifndef ARMASM_H #define ARMASM_H /*============================================================================= ARM Assembly Language Definitions GENERAL DESCRIPTION This file contains assembly language macros for use with the ARM assembler. Copyright (c) 1998 - 2010 by Qualcomm Technologies, Incorporated. All Rights Reserved. =============================================================================*/ /*============================================================================= EDIT HISTORY FOR FILE $Header: //components/rel/core.tz/2.10.1/api/services/armasm.h#1 $ when who what, where, why -------- --- ---------------------------------------------------------- 07/09/10 pc Added support for PSR_AsyncAbort_Mask. 09/13/05 ck Copied from 6100 branch 07/12/02 jct Removed conditional inclusion of customer.h and target.h 05/17/01 kar Bigger SVC stack available to support REX from MSM archive 01/25/01 day Merged from MSM5105_COMMON.00.00.05. Added support for Interworking Added define for system stack size 04/02/99 sk Increased Abort stack size. 04/02/99 ms Reduced stack sizes. 02/03/99 ms Renamed blx to blatox since blx is a keyword in Assembler of ARM SDK 2.5 01/18/99 ms Moved ARM_TRAP_FRAME related declarations to boot_trap.h. Moved context frame related macros to rexarm.s. Incorporated exception frame related macros directly into boot_abort_handler in bootsys.s. 12/10/98 jkl Included r12 in the context frame. 11/23/98 jkl Clean up code. Changed save_context_from_task macro. 10/27/98 jkl Revised for new context 09/13/98 hcg Changed exception/trap frame names 07/10/98 jct Revised for coding standard, removed unused code 01/01/98 bwj Created =============================================================================*/ #include "target.h" #include "customer.h" /* CPSR Control Masks */ #define PSR_Thumb_Mask 0x20 #define PSR_Fiq_Mask 0x40 #define PSR_Irq_Mask 0x80 #define PSR_Mode_Mask 0x1f #define PSR_AsyncAbort_Mask 0x100 /* Processor mode definitions */ #define PSR_User 0x10 #define PSR_Fiq 0x11 #define PSR_Irq 0x12 #define PSR_Supervisor 0x13 #define PSR_Abort 0x17 #define PSR_Undef 0x1b #define PSR_System 0x1f #define PSR_Thumb 0x20 /*=========================================================================== ** GENERAL PURPOSE ASSEMBLY MACROS. **=========================================================================*/ #if defined(_ARM_ASM_) GBLS current_node_name GBLS current_node_type GBLA current_node_aregcount GBLA current_node_vregcount /*=========================================================================== Name: pusha, popa Description: Readable names for push and pop. MODE: Any STATE: ARM Registers modified: sp =============================================================================*/ MACRO pusha $stack, $reg str $reg, [$stack, #-4]! MEND MACRO popa $stack, $reg ldr $reg, [$stack], #4 MEND /*=========================================================================== Name: Entry_Node, Entry_Node_End Description: Defines an empty function prolog and epilog of a piece of assembly code. These macros take care of the following: - Exporting the entry point label - Creating a stack frame - Software stack checking Defined Labels: "node_name" - The main thumb mode entry point of the function. "node_name"_end - A label marking the begining of the function epilog. Arguments: Leaf_Node Node_Name - The function name of the function to be defined. Leaf_Node_End None MODE: Any STATE: ARM Registers modified: None =============================================================================*/ MACRO ENTRY_NODE $node_name current_node_name SETS "$node_name" EXPORT $node_name ALIGN ROUT $node_name MEND ; The end of an entry node. MACRO ENTRY_NODE_END $current_node_name._exit current_node_name SETS "" MEND /*=========================================================================== Name: Leaf_Node, Leaf_Node_End Description: Defines the function prolog and epilog of a function that makes no function calls. These macros take care of the following: - Exporting the entry point label - Creating 16 and 32 bit entry points. - Creating a stack frame - Software stack checking Defined Labels: "node_name" - The main thumb mode entry point of the function. "node_name"_32 - The ARM state entry point to the function. "node_name"_end - A label marking the begining of the function epilog. Arguments: Leaf_Node Node_Name - The function name of the function to be defined. Leaf_Node_End None MODE: Any STATE: ARM and Thumb state entry points. Code runs in ARM state. Registers modified: None =============================================================================*/ MACRO LEAF_NODE $node_name current_node_type SETS "Leaf" CODE16 ENTRY_NODE $node_name bx pc ALIGN CODE32 EXPORT $node_name._32 $node_name._32 MEND MACRO LEAF_NODE_END $node_name ASSERT "$current_node_type" = "Leaf" ENTRY_NODE_END $node_name bx lr current_node_type SETS "" MEND /*=========================================================================== Name: Leaf_Node_End, Leaf_Node_End_16 Description: Defines the function prolog and epilog of a Thumb mode only function that makes no function calls. These macros take care of the following: - Exporting the entry point label - Creating a 16 bit entry point. - Creating a stack frame - Software stack checking Defined Labels: "node_name" - The main thumb mode entry point of the function. "node_name"_end - A label marking the begining of the function epilog. Arguments: Leaf_Node_16 Node_Name - The function name of the function to be defined. Leaf_Node_End_16 None MODE: Any STATE: Thumb Registers modified: None =============================================================================*/ MACRO LEAF_NODE_16 $node_name current_node_type SETS "Leaf16" CODE16 ENTRY_NODE $node_name MEND MACRO LEAF_NODE_END_16 $node_name ASSERT "$current_node_type" = "Leaf16" ENTRY_NODE_END $node_name bx lr current_node_type SETS "" MEND MACRO ALTERNATE_ENTRY_16 $node_name ASSERT "$current_node_type" = "Leaf16" EXPORT $node_name $node_name MEND /*=========================================================================== Name: blatox Description: Calls a function from ARM state without having to know whether that that function is ARM or Thumb state code. Arguments: destreg - The register that contains the address of the function to be called. Registers modified: lr MODE: Any STATE: ARM. Can call either ARM or Thumb state functions. =============================================================================*/ MACRO blatox $destreg ROUT tst $destreg, #0x01 /* Test for thumb mode call. */ ldrne lr, =%1 ldreq lr, =%2 bx $destreg 1 CODE16 bx pc ALIGN CODE32 2 MEND #endif /* ARM_ASM */ #endif /* ARMASM_H */