refractor device composite example
This commit is contained in:
hathach
@@ -0,0 +1,6 @@
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<!DOCTYPE Board_Memory_Definition_File>
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<root name="ATSAMD51J19A">
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<MemorySegment name="FLASH" start="0x00004000" size="0x0007C000" access="ReadOnly" />
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<MemorySegment name="RAM" start="0x20000000" size="0x00030000" access="Read/Write" />
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<MemorySegment name="RAM2" start="0x47000000" size="0x00002000" access="Read/Write" />
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</root>
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23643
examples/device_composite/ses/samd51/ATSAMD51J19A_Registers.xml
Normal file
23643
examples/device_composite/ses/samd51/ATSAMD51J19A_Registers.xml
Normal file
File diff suppressed because it is too large
Load Diff
1227
examples/device_composite/ses/samd51/ATSAMD51J19A_Vectors.s
Normal file
1227
examples/device_composite/ses/samd51/ATSAMD51J19A_Vectors.s
Normal file
File diff suppressed because it is too large
Load Diff
128
examples/device_composite/ses/samd51/SAMD51_Startup.s
Normal file
128
examples/device_composite/ses/samd51/SAMD51_Startup.s
Normal file
@@ -0,0 +1,128 @@
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/*****************************************************************************
|
||||
* SEGGER Microcontroller GmbH & Co. KG *
|
||||
* Solutions for real time microcontroller applications *
|
||||
*****************************************************************************
|
||||
* *
|
||||
* (c) 2017 SEGGER Microcontroller GmbH & Co. KG *
|
||||
* *
|
||||
* Internet: www.segger.com Support: support@segger.com *
|
||||
* *
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||||
*****************************************************************************/
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||||
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||||
/*****************************************************************************
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||||
* Preprocessor Definitions *
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* ------------------------ *
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* NO_FPU_ENABLE *
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* *
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||||
* If defined, FPU will not be enabled. *
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* *
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* NO_STACK_INIT *
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* *
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||||
* If defined, the stack pointer will not be initialised. *
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||||
* *
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||||
* NO_SYSTEM_INIT *
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* *
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* If defined, the SystemInit() function will not be called. By default *
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* SystemInit() is called after reset to enable the clocks and memories to *
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* be initialised prior to any C startup initialisation. *
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* *
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* NO_VTOR_CONFIG *
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* *
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* If defined, the vector table offset register will not be configured. *
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* *
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* MEMORY_INIT *
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* *
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* If defined, the MemoryInit() function will be called. By default *
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* MemoryInit() is called after SystemInit() to enable an external memory *
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* controller. *
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* *
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* STACK_INIT_VAL *
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* *
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* If defined, specifies the initial stack pointer value. If undefined, *
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* the stack pointer will be initialised to point to the end of the *
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* RAM segment. *
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* *
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* VECTORS_IN_RAM *
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* *
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* If defined, the exception vectors will be copied from Flash to RAM. *
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* *
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*****************************************************************************/
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.syntax unified
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.global Reset_Handler
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.extern _vectors
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.section .init, "ax"
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.thumb_func
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.equ VTOR_REG, 0xE000ED08
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.equ FPU_CPACR_REG, 0xE000ED88
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#ifndef STACK_INIT_VAL
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#define STACK_INIT_VAL __RAM_segment_end__
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#endif
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Reset_Handler:
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#ifndef NO_STACK_INIT
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/* Initialise main stack */
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ldr r0, =STACK_INIT_VAL
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bic r0, #0x7
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mov sp, r0
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#endif
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#ifndef NO_SYSTEM_INIT
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/* Initialise system */
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ldr r0, =SystemInit
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blx r0
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.pushsection .init_array, "aw", %init_array
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.word SystemCoreClockUpdate
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.popsection
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#endif
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#ifdef MEMORY_INIT
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ldr r0, =MemoryInit
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blx r0
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#endif
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#ifdef VECTORS_IN_RAM
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/* Copy exception vectors into RAM */
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ldr r0, =__vectors_start__
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ldr r1, =__vectors_end__
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ldr r2, =__vectors_ram_start__
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1:
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cmp r0, r1
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beq 2f
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ldr r3, [r0]
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str r3, [r2]
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adds r0, r0, #4
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adds r2, r2, #4
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b 1b
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2:
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#endif
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#ifndef NO_VTOR_CONFIG
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/* Configure vector table offset register */
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ldr r0, =VTOR_REG
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#ifdef VECTORS_IN_RAM
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ldr r1, =_vectors_ram
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#else
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ldr r1, =_vectors
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#endif
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str r1, [r0]
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#endif
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#if (defined(__ARM_ARCH_FPV4_SP_D16__) || defined(__ARM_ARCH_FPV5_D16__)) && !defined(NO_FPU_ENABLE)
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/* Enable FPU */
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ldr r0, =FPU_CPACR_REG
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ldr r1, [r0]
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orr r1, r1, #(0xF << 20)
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str r1, [r0]
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dsb
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isb
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#endif
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/* Jump to program start */
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b _start
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19
examples/device_composite/ses/samd51/SAMD51_Target.js
Normal file
19
examples/device_composite/ses/samd51/SAMD51_Target.js
Normal file
@@ -0,0 +1,19 @@
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||||
/*****************************************************************************
|
||||
* SEGGER Microcontroller GmbH & Co. KG *
|
||||
* Solutions for real time microcontroller applications *
|
||||
*****************************************************************************
|
||||
* *
|
||||
* (c) 2017 SEGGER Microcontroller GmbH & Co. KG *
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||||
* *
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||||
* Internet: www.segger.com Support: support@segger.com *
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||||
* *
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*****************************************************************************/
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function Reset() {
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TargetInterface.resetAndStop();
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}
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function EnableTrace(traceInterfaceType) {
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// TODO: Enable trace
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}
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37
examples/device_composite/ses/samd51/flash_placement.xml
Normal file
37
examples/device_composite/ses/samd51/flash_placement.xml
Normal file
@@ -0,0 +1,37 @@
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<!DOCTYPE Linker_Placement_File>
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<Root name="Flash Section Placement">
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<MemorySegment name="$(FLASH_NAME:FLASH)">
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<ProgramSection alignment="0x100" load="Yes" name=".vectors" start="$(FLASH_START:)" />
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<ProgramSection alignment="4" load="Yes" name=".init" />
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<ProgramSection alignment="4" load="Yes" name=".init_rodata" />
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<ProgramSection alignment="4" load="Yes" name=".text" />
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<ProgramSection alignment="4" load="Yes" name=".dtors" />
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<ProgramSection alignment="4" load="Yes" name=".ctors" />
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<ProgramSection alignment="4" load="Yes" name=".rodata" />
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<ProgramSection alignment="4" load="Yes" name=".ARM.exidx" address_symbol="__exidx_start" end_symbol="__exidx_end" />
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<ProgramSection alignment="4" load="Yes" runin=".fast_run" name=".fast" />
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<ProgramSection alignment="4" load="Yes" runin=".data_run" name=".data" />
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<ProgramSection alignment="4" load="Yes" runin=".tdata_run" name=".tdata" />
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</MemorySegment>
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<MemorySegment name="$(RAM_NAME:RAM);SRAM">
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<ProgramSection alignment="0x100" load="No" name=".vectors_ram" start="$(RAM_START:$(SRAM_START:))" />
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<ProgramSection alignment="4" load="No" name=".fast_run" />
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<ProgramSection alignment="4" load="No" name=".data_run" />
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<ProgramSection alignment="4" load="No" name=".bss" />
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<ProgramSection alignment="4" load="No" name=".tbss" />
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<ProgramSection alignment="4" load="No" name=".tdata_run" />
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<ProgramSection alignment="4" load="No" name=".non_init" />
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<ProgramSection alignment="4" size="__HEAPSIZE__" load="No" name=".heap" />
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<ProgramSection alignment="8" size="__STACKSIZE__" load="No" place_from_segment_end="Yes" name=".stack" />
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<ProgramSection alignment="8" size="__STACKSIZE_PROCESS__" load="No" name=".stack_process" />
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</MemorySegment>
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<MemorySegment name="$(FLASH2_NAME:FLASH2)">
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<ProgramSection alignment="4" load="Yes" name=".text2" />
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<ProgramSection alignment="4" load="Yes" name=".rodata2" />
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<ProgramSection alignment="4" load="Yes" runin=".data2_run" name=".data2" />
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</MemorySegment>
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<MemorySegment name="$(RAM2_NAME:RAM2)">
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<ProgramSection alignment="4" load="No" name=".data2_run" />
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<ProgramSection alignment="4" load="No" name=".bss2" />
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</MemorySegment>
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</Root>
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107
examples/device_composite/ses/samd51/samd51.emProject
Normal file
107
examples/device_composite/ses/samd51/samd51.emProject
Normal file
@@ -0,0 +1,107 @@
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<!DOCTYPE CrossStudio_Project_File>
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<solution Name="samd51" target="8" version="2">
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<project Name="samd51">
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<configuration
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Name="Common"
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Placement="Flash"
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Target="nRF52840_xxAA"
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arm_architecture="v7EM"
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arm_core_type="Cortex-M4"
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arm_endian="Little"
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arm_fp_abi="Hard"
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arm_fpu_type="FPv4-SP-D16"
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arm_interwork="No"
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arm_linker_heap_size="1024"
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arm_linker_process_stack_size="0"
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arm_linker_stack_size="1024"
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arm_simulator_memory_simulation_parameter="RX 00000000,00080000,FFFFFFFF;RWX 20000000,00030000,CDCDCDCD"
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arm_target_debug_interface_type="ADIv5"
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arm_target_device_name="ATSAMD51J19"
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arm_target_interface_type="SWD"
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build_treat_warnings_as_errors="Yes"
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c_preprocessor_definitions="__SAMD51_FAMILY;__SAMD51J19A__;ARM_MATH_CM4;FLASH_PLACEMENT=1;USE_SIMPLE_ASSERT;BOARD_METRO_M4_EXPRESS;CFG_TUSB_MCU=OPT_MCU_SAMD51"
|
||||
c_user_include_directories="../../src;$(rootDir)/hw/cmsis/Include;$(rootDir)/hw;$(rootDir)/src;$(asf4Dir);$(asf4Dir)/include;$(asf4Dir)/config;$(asf4Dir)/hri;$(asf4Dir)/hal/include;$(asf4Dir)/hal/utils/include;$(asf4Dir)/hpl/port;$(asf4Dir)/hpl/gclk"
|
||||
debug_register_definition_file="ATSAMD51J19A_Registers.xml"
|
||||
debug_target_connection="J-Link"
|
||||
gcc_entry_point="Reset_Handler"
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||||
link_use_linker_script_file="No"
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||||
linker_memory_map_file="ATSAMD51J19A_MemoryMap.xml"
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||||
linker_section_placement_file="flash_placement.xml"
|
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linker_section_placements_segments="FLASH RX 0x00000000 0x00080000;RAM RWX 0x20000000 0x00030000"
|
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macros="DeviceFamily=SAMD51;Target=ATSAMD51J19A;Placement=Flash;rootDir=../../../..;asf4Dir=../../../../hw/mcu/microchip/samd/asf4/samd51"
|
||||
project_directory=""
|
||||
project_type="Executable"
|
||||
target_reset_script="Reset();"
|
||||
target_script_file="$(ProjectDir)/SAMD51_Target.js"
|
||||
target_trace_initialize_script="EnableTrace("$(TraceInterfaceType)")" />
|
||||
<folder
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||||
Name="tinyusb"
|
||||
exclude=""
|
||||
filter="*.c;*.h"
|
||||
path="../../../../src"
|
||||
recurse="Yes" />
|
||||
<folder Name="hw">
|
||||
<folder Name="bsp">
|
||||
<file file_name="../../../../hw/bsp/ansi_escape.h" />
|
||||
<file file_name="../../../../hw/bsp/board.h" />
|
||||
<folder Name="metro_m4_express">
|
||||
<file file_name="../../../../hw/bsp/metro_m4_express/board_metro_m4_express.c" />
|
||||
<file file_name="../../../../hw/bsp/metro_m4_express/board_metro_m4_express.h" />
|
||||
</folder>
|
||||
</folder>
|
||||
<folder Name="mcu">
|
||||
<folder Name="microchip">
|
||||
<folder Name="samd">
|
||||
<folder Name="asf4">
|
||||
<folder Name="samd51">
|
||||
<folder Name="gcc">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/gcc/system_samd51.c" />
|
||||
</folder>
|
||||
<folder Name="hpl">
|
||||
<folder Name="core">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/hpl/core/hpl_init.c" />
|
||||
</folder>
|
||||
<folder Name="osc32kctrl">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/hpl/osc32kctrl/hpl_osc32kctrl.c" />
|
||||
</folder>
|
||||
<folder Name="oscctrl">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/hpl/oscctrl/hpl_oscctrl.c" />
|
||||
</folder>
|
||||
<folder Name="mclk">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/hpl/mclk/hpl_mclk.c" />
|
||||
</folder>
|
||||
<folder Name="gclk">
|
||||
<file file_name="../../../../hw/mcu/microchip/samd/asf4/samd51/hpl/gclk/hpl_gclk.c" />
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
</folder>
|
||||
<configuration Name="Debug" build_treat_warnings_as_errors="Yes" />
|
||||
<folder
|
||||
Name="src"
|
||||
exclude=""
|
||||
filter="*.c;*.h"
|
||||
path="../../src"
|
||||
recurse="Yes" />
|
||||
<folder Name="System Files">
|
||||
<file file_name="ATSAMD51J19A_MemoryMap.xml" />
|
||||
<file file_name="ATSAMD51J19A_Registers.xml" />
|
||||
<file file_name="ATSAMD51J19A_Vectors.s" />
|
||||
<file file_name="flash_placement.xml" />
|
||||
<file file_name="SAMD51_Startup.s" />
|
||||
<file file_name="SAMD51_Target.js" />
|
||||
<file file_name="thumb_crt0.s" />
|
||||
</folder>
|
||||
<folder
|
||||
Name="segger_rtt"
|
||||
exclude=""
|
||||
filter="*.c;*.h"
|
||||
path="../../../../lib/segger_rtt"
|
||||
recurse="No" />
|
||||
</project>
|
||||
<configuration Name="Metro M4 Express" />
|
||||
</solution>
|
||||
415
examples/device_composite/ses/samd51/thumb_crt0.s
Normal file
415
examples/device_composite/ses/samd51/thumb_crt0.s
Normal file
@@ -0,0 +1,415 @@
|
||||
// **********************************************************************
|
||||
// * SEGGER Microcontroller GmbH *
|
||||
// * The Embedded Experts *
|
||||
// **********************************************************************
|
||||
// * *
|
||||
// * (c) 2014 - 2018 SEGGER Microcontroller GmbH *
|
||||
// * (c) 2001 - 2018 Rowley Associates Limited *
|
||||
// * *
|
||||
// * www.segger.com Support: support@segger.com *
|
||||
// * *
|
||||
// **********************************************************************
|
||||
// * *
|
||||
// * All rights reserved. *
|
||||
// * *
|
||||
// * Redistribution and use in source and binary forms, with or *
|
||||
// * without modification, are permitted provided that the following *
|
||||
// * conditions are met: *
|
||||
// * *
|
||||
// * - Redistributions of source code must retain the above copyright *
|
||||
// * notice, this list of conditions and the following disclaimer. *
|
||||
// * *
|
||||
// * - Neither the name of SEGGER Microcontroller GmbH *
|
||||
// * nor the names of its contributors may be used to endorse or *
|
||||
// * promote products derived from this software without specific *
|
||||
// * prior written permission. *
|
||||
// * *
|
||||
// * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
|
||||
// * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
|
||||
// * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
|
||||
// * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
|
||||
// * DISCLAIMED. *
|
||||
// * IN NO EVENT SHALL SEGGER Microcontroller GmbH BE LIABLE FOR *
|
||||
// * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
|
||||
// * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
|
||||
// * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
|
||||
// * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
|
||||
// * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
|
||||
// * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
|
||||
// * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
|
||||
// * DAMAGE. *
|
||||
// * *
|
||||
// **********************************************************************
|
||||
//
|
||||
//
|
||||
// Preprocessor Definitions
|
||||
// ------------------------
|
||||
// APP_ENTRY_POINT
|
||||
//
|
||||
// Defines the application entry point function, if undefined this setting
|
||||
// defaults to "main".
|
||||
//
|
||||
// INITIALIZE_STACK
|
||||
//
|
||||
// If defined, the contents of the stack will be initialized to a the
|
||||
// value 0xCC.
|
||||
//
|
||||
// INITIALIZE_SECONDARY_SECTIONS
|
||||
//
|
||||
// If defined, the .data2, .text2, .rodata2 and .bss2 sections will be initialized.
|
||||
//
|
||||
// INITIALIZE_TCM_SECTIONS
|
||||
//
|
||||
// If defined, the .data_tcm, .text_tcm, .rodata_tcm and .bss_tcm sections
|
||||
// will be initialized.
|
||||
//
|
||||
// INITIALIZE_USER_SECTIONS
|
||||
//
|
||||
// If defined, the function InitializeUserMemorySections will be called prior
|
||||
// to entering main in order to allow the user to initialize any user defined
|
||||
// memory sections.
|
||||
//
|
||||
// FULL_LIBRARY
|
||||
//
|
||||
// If defined then
|
||||
// - argc, argv are setup by the debug_getargs.
|
||||
// - the exit symbol is defined and executes on return from main.
|
||||
// - the exit symbol calls destructors, atexit functions and then debug_exit.
|
||||
//
|
||||
// If not defined then
|
||||
// - argc and argv are zero.
|
||||
// - the exit symbol is defined, executes on return from main and loops
|
||||
//
|
||||
|
||||
#ifndef APP_ENTRY_POINT
|
||||
#define APP_ENTRY_POINT main
|
||||
#endif
|
||||
|
||||
#ifndef ARGSSPACE
|
||||
#define ARGSSPACE 128
|
||||
#endif
|
||||
.syntax unified
|
||||
|
||||
.global _start
|
||||
.extern APP_ENTRY_POINT
|
||||
.global exit
|
||||
.weak exit
|
||||
|
||||
#ifdef INITIALIZE_USER_SECTIONS
|
||||
.extern InitializeUserMemorySections
|
||||
#endif
|
||||
|
||||
.section .init, "ax"
|
||||
.code 16
|
||||
.balign 2
|
||||
.thumb_func
|
||||
|
||||
_start:
|
||||
/* Set up main stack if size > 0 */
|
||||
ldr r1, =__stack_end__
|
||||
ldr r0, =__stack_start__
|
||||
subs r2, r1, r0
|
||||
beq 1f
|
||||
#ifdef __ARM_EABI__
|
||||
movs r2, #0x7
|
||||
bics r1, r2
|
||||
#endif
|
||||
mov sp, r1
|
||||
#ifdef INITIALIZE_STACK
|
||||
movs r2, #0xCC
|
||||
ldr r0, =__stack_start__
|
||||
bl memory_set
|
||||
#endif
|
||||
1:
|
||||
|
||||
/* Set up process stack if size > 0 */
|
||||
ldr r1, =__stack_process_end__
|
||||
ldr r0, =__stack_process_start__
|
||||
subs r2, r1, r0
|
||||
beq 1f
|
||||
#ifdef __ARM_EABI__
|
||||
movs r2, #0x7
|
||||
bics r1, r2
|
||||
#endif
|
||||
msr psp, r1
|
||||
movs r2, #2
|
||||
msr control, r2
|
||||
#ifdef INITIALIZE_STACK
|
||||
movs r2, #0xCC
|
||||
bl memory_set
|
||||
#endif
|
||||
1:
|
||||
|
||||
/* Copy initialized memory sections into RAM (if necessary). */
|
||||
ldr r0, =__data_load_start__
|
||||
ldr r1, =__data_start__
|
||||
ldr r2, =__data_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__text_load_start__
|
||||
ldr r1, =__text_start__
|
||||
ldr r2, =__text_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__fast_load_start__
|
||||
ldr r1, =__fast_start__
|
||||
ldr r2, =__fast_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__ctors_load_start__
|
||||
ldr r1, =__ctors_start__
|
||||
ldr r2, =__ctors_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__dtors_load_start__
|
||||
ldr r1, =__dtors_start__
|
||||
ldr r2, =__dtors_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__rodata_load_start__
|
||||
ldr r1, =__rodata_start__
|
||||
ldr r2, =__rodata_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__tdata_load_start__
|
||||
ldr r1, =__tdata_start__
|
||||
ldr r2, =__tdata_end__
|
||||
bl memory_copy
|
||||
#ifdef INITIALIZE_SECONDARY_SECTIONS
|
||||
ldr r0, =__data2_load_start__
|
||||
ldr r1, =__data2_start__
|
||||
ldr r2, =__data2_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__text2_load_start__
|
||||
ldr r1, =__text2_start__
|
||||
ldr r2, =__text2_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__rodata2_load_start__
|
||||
ldr r1, =__rodata2_start__
|
||||
ldr r2, =__rodata2_end__
|
||||
bl memory_copy
|
||||
#endif /* #ifdef INITIALIZE_SECONDARY_SECTIONS */
|
||||
#ifdef INITIALIZE_TCM_SECTIONS
|
||||
ldr r0, =__data_tcm_load_start__
|
||||
ldr r1, =__data_tcm_start__
|
||||
ldr r2, =__data_tcm_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__text_tcm_load_start__
|
||||
ldr r1, =__text_tcm_start__
|
||||
ldr r2, =__text_tcm_end__
|
||||
bl memory_copy
|
||||
ldr r0, =__rodata_tcm_load_start__
|
||||
ldr r1, =__rodata_tcm_start__
|
||||
ldr r2, =__rodata_tcm_end__
|
||||
bl memory_copy
|
||||
#endif /* #ifdef INITIALIZE_TCM_SECTIONS */
|
||||
|
||||
/* Zero the bss. */
|
||||
ldr r0, =__bss_start__
|
||||
ldr r1, =__bss_end__
|
||||
movs r2, #0
|
||||
bl memory_set
|
||||
ldr r0, =__tbss_start__
|
||||
ldr r1, =__tbss_end__
|
||||
movs r2, #0
|
||||
bl memory_set
|
||||
#ifdef INITIALIZE_SECONDARY_SECTIONS
|
||||
ldr r0, =__bss2_start__
|
||||
ldr r1, =__bss2_end__
|
||||
mov r2, #0
|
||||
bl memory_set
|
||||
#endif /* #ifdef INITIALIZE_SECONDARY_SECTIONS */
|
||||
#ifdef INITIALIZE_TCM_SECTIONS
|
||||
ldr r0, =__bss_tcm_start__
|
||||
ldr r1, =__bss_tcm_end__
|
||||
mov r2, #0
|
||||
bl memory_set
|
||||
#endif /* #ifdef INITIALIZE_TCM_SECTIONS */
|
||||
|
||||
/* Initialize the heap */
|
||||
ldr r0, = __heap_start__
|
||||
ldr r1, = __heap_end__
|
||||
subs r1, r1, r0
|
||||
cmp r1, #8
|
||||
blt 1f
|
||||
movs r2, #0
|
||||
str r2, [r0]
|
||||
adds r0, r0, #4
|
||||
str r1, [r0]
|
||||
1:
|
||||
|
||||
#ifdef INITIALIZE_USER_SECTIONS
|
||||
ldr r2, =InitializeUserMemorySections
|
||||
blx r2
|
||||
#endif
|
||||
|
||||
/* Call constructors */
|
||||
ldr r0, =__ctors_start__
|
||||
ldr r1, =__ctors_end__
|
||||
ctor_loop:
|
||||
cmp r0, r1
|
||||
beq ctor_end
|
||||
ldr r2, [r0]
|
||||
adds r0, #4
|
||||
push {r0-r1}
|
||||
blx r2
|
||||
pop {r0-r1}
|
||||
b ctor_loop
|
||||
ctor_end:
|
||||
|
||||
/* Setup initial call frame */
|
||||
movs r0, #0
|
||||
mov lr, r0
|
||||
mov r12, sp
|
||||
|
||||
.type start, function
|
||||
start:
|
||||
/* Jump to application entry point */
|
||||
#ifdef FULL_LIBRARY
|
||||
movs r0, #ARGSSPACE
|
||||
ldr r1, =args
|
||||
ldr r2, =debug_getargs
|
||||
blx r2
|
||||
ldr r1, =args
|
||||
#else
|
||||
movs r0, #0
|
||||
movs r1, #0
|
||||
#endif
|
||||
ldr r2, =APP_ENTRY_POINT
|
||||
blx r2
|
||||
|
||||
.thumb_func
|
||||
exit:
|
||||
#ifdef FULL_LIBRARY
|
||||
mov r5, r0 // save the exit parameter/return result
|
||||
|
||||
/* Call destructors */
|
||||
ldr r0, =__dtors_start__
|
||||
ldr r1, =__dtors_end__
|
||||
dtor_loop:
|
||||
cmp r0, r1
|
||||
beq dtor_end
|
||||
ldr r2, [r0]
|
||||
add r0, #4
|
||||
push {r0-r1}
|
||||
blx r2
|
||||
pop {r0-r1}
|
||||
b dtor_loop
|
||||
dtor_end:
|
||||
|
||||
/* Call atexit functions */
|
||||
ldr r2, =_execute_at_exit_fns
|
||||
blx r2
|
||||
|
||||
/* Call debug_exit with return result/exit parameter */
|
||||
mov r0, r5
|
||||
ldr r2, =debug_exit
|
||||
blx r2
|
||||
#endif
|
||||
|
||||
/* Returned from application entry point, loop forever. */
|
||||
exit_loop:
|
||||
b exit_loop
|
||||
|
||||
.thumb_func
|
||||
memory_copy:
|
||||
cmp r0, r1
|
||||
beq 2f
|
||||
subs r2, r2, r1
|
||||
beq 2f
|
||||
1:
|
||||
ldrb r3, [r0]
|
||||
adds r0, r0, #1
|
||||
strb r3, [r1]
|
||||
adds r1, r1, #1
|
||||
subs r2, r2, #1
|
||||
bne 1b
|
||||
2:
|
||||
bx lr
|
||||
|
||||
.thumb_func
|
||||
memory_set:
|
||||
cmp r0, r1
|
||||
beq 1f
|
||||
strb r2, [r0]
|
||||
adds r0, r0, #1
|
||||
b memory_set
|
||||
1:
|
||||
bx lr
|
||||
|
||||
// default C/C++ library helpers
|
||||
|
||||
.macro HELPER helper_name
|
||||
.section .text.\helper_name, "ax", %progbits
|
||||
.balign 2
|
||||
.global \helper_name
|
||||
.weak \helper_name
|
||||
\helper_name:
|
||||
.thumb_func
|
||||
.endm
|
||||
|
||||
.macro JUMPTO name
|
||||
#if defined(__thumb__) && !defined(__thumb2__)
|
||||
mov r12, r0
|
||||
ldr r0, =\name
|
||||
push {r0}
|
||||
mov r0, r12
|
||||
pop {pc}
|
||||
#else
|
||||
b \name
|
||||
#endif
|
||||
.endm
|
||||
|
||||
HELPER __aeabi_read_tp
|
||||
ldr r0, =__tbss_start__-8
|
||||
bx lr
|
||||
HELPER abort
|
||||
b .
|
||||
HELPER __assert
|
||||
b .
|
||||
HELPER __aeabi_assert
|
||||
b .
|
||||
HELPER __sync_synchronize
|
||||
bx lr
|
||||
HELPER __getchar
|
||||
JUMPTO debug_getchar
|
||||
HELPER __putchar
|
||||
JUMPTO debug_putchar
|
||||
HELPER __open
|
||||
JUMPTO debug_fopen
|
||||
HELPER __close
|
||||
JUMPTO debug_fclose
|
||||
HELPER __write
|
||||
mov r3, r0
|
||||
mov r0, r1
|
||||
movs r1, #1
|
||||
JUMPTO debug_fwrite
|
||||
HELPER __read
|
||||
mov r3, r0
|
||||
mov r0, r1
|
||||
movs r1, #1
|
||||
JUMPTO debug_fread
|
||||
HELPER __seek
|
||||
push {r4, lr}
|
||||
mov r4, r0
|
||||
bl debug_fseek
|
||||
cmp r0, #0
|
||||
bne 1f
|
||||
mov r0, r4
|
||||
bl debug_ftell
|
||||
pop {r4, pc}
|
||||
1:
|
||||
ldr r0, =-1
|
||||
pop {r4, pc}
|
||||
// char __user_locale_name_buffer[];
|
||||
.section .bss.__user_locale_name_buffer, "aw", %nobits
|
||||
.global __user_locale_name_buffer
|
||||
.weak __user_locale_name_buffer
|
||||
__user_locale_name_buffer:
|
||||
.word 0x0
|
||||
|
||||
#ifdef FULL_LIBRARY
|
||||
.bss
|
||||
args:
|
||||
.space ARGSSPACE
|
||||
#endif
|
||||
|
||||
/* Setup attibutes of stack and heap sections so they don't take up room in the elf file */
|
||||
.section .stack, "wa", %nobits
|
||||
.section .stack_process, "wa", %nobits
|
||||
.section .heap, "wa", %nobits
|
||||
|
||||
Reference in New Issue
Block a user