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esp8266.ld

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  • esp8266.ld 6.51 KiB
    /* GNU linker script for ESP8266 */
    
    MEMORY
    {
        dport0_0_seg : org = 0x3ff00000, len = 0x10
        dram0_0_seg :  org = 0x3ffe8000, len = 0x14000
        iram1_0_seg :  org = 0x40100000, len = 0x8000
        irom0_0_seg :  org = 0x40210000, len = 0x5A000
    }
    
    /* define the top of RAM */
    _heap_end = ORIGIN(dram0_0_seg) + LENGTH(dram0_0_seg);
    
    PHDRS
    {
        dport0_0_phdr PT_LOAD;
        dram0_0_phdr PT_LOAD;
        dram0_0_bss_phdr PT_LOAD;
        iram1_0_phdr PT_LOAD;
        irom0_0_phdr PT_LOAD;
    }
    
    ENTRY(call_user_start)
    EXTERN(_DebugExceptionVector)
    EXTERN(_DoubleExceptionVector)
    EXTERN(_KernelExceptionVector)
    EXTERN(_NMIExceptionVector)
    EXTERN(_UserExceptionVector)
    
    PROVIDE(_memmap_vecbase_reset = 0x40000000);
    
    /* Various memory-map dependent cache attribute settings: */
    _memmap_cacheattr_wb_base = 0x00000110;
    _memmap_cacheattr_wt_base = 0x00000110;
    _memmap_cacheattr_bp_base = 0x00000220;
    _memmap_cacheattr_unused_mask = 0xFFFFF00F;
    _memmap_cacheattr_wb_trapnull = 0x2222211F;
    _memmap_cacheattr_wba_trapnull = 0x2222211F;
    _memmap_cacheattr_wbna_trapnull = 0x2222211F;
    _memmap_cacheattr_wt_trapnull = 0x2222211F;
    _memmap_cacheattr_bp_trapnull = 0x2222222F;
    _memmap_cacheattr_wb_strict = 0xFFFFF11F;
    _memmap_cacheattr_wt_strict = 0xFFFFF11F;
    _memmap_cacheattr_bp_strict = 0xFFFFF22F;
    _memmap_cacheattr_wb_allvalid = 0x22222112;
    _memmap_cacheattr_wt_allvalid = 0x22222112;
    _memmap_cacheattr_bp_allvalid = 0x22222222;
    PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_wb_trapnull);
    
    SECTIONS
    {
    
        .dport0.rodata : ALIGN(4)
        {
            _dport0_rodata_start = ABSOLUTE(.);
            *(.dport0.rodata)
            *(.dport.rodata)
            _dport0_rodata_end = ABSOLUTE(.);
        } >dport0_0_seg :dport0_0_phdr
    
        .dport0.literal : ALIGN(4)
        {
            _dport0_literal_start = ABSOLUTE(.);
            *(.dport0.literal)
            *(.dport.literal)
            _dport0_literal_end = ABSOLUTE(.);
        } >dport0_0_seg :dport0_0_phdr
    
        .dport0.data : ALIGN(4)
        {
            _dport0_data_start = ABSOLUTE(.);
            *(.dport0.data)
            *(.dport.data)
            _dport0_data_end = ABSOLUTE(.);
        } >dport0_0_seg :dport0_0_phdr
    
        .irom0.text : ALIGN(4)
        {
            _irom0_text_start = ABSOLUTE(.);
            *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
    
            /* we put some specific text in this section */
            *py/*.o*(.literal* .text*)
            *pyexec.o(.literal*, .text*)
            *readline.o(.literal*, .text*)
            *pybstdio.o(.literal*, .text*)
            *gccollect.o(.literal* .text*)
            *gchelper.o(.literal* .text*)
            *modpyb.o(.literal*, .text*)
            *modpybpin.o(.literal*, .text*)
            *modpybrtc.o(.literal*, .text*)
            *modesp.o(.literal* .text*)
            *modnetwork.o(.literal* .text*)
            *moduos.o(.literal* .text*)
            *modutime.o(.literal* .text*)
    
            /* we put as much rodata as possible in this section */
            /* note that only rodata accessed as a machine word is allowed here */
            *py/qstr.o(.rodata.const_pool)
            *py/*.o(.rodata.mp_type_*) /* catches type: mp_obj_type_t */
            *py/*.o(.rodata.*_locals_dict*) /* catches types: mp_obj_dict_t, mp_map_elem_t */
            *py/*.o(.rodata.mp_module_*) /* catches types: mp_obj_module_t, mp_obj_dict_t, mp_map_elem_t */
    
            _irom0_text_end = ABSOLUTE(.);
        } >irom0_0_seg :irom0_0_phdr
    
        .text : ALIGN(4)
        {
            _stext = .;
            _text_start = ABSOLUTE(.);
            *(.UserEnter.text)
            . = ALIGN(16);
            *(.DebugExceptionVector.text)
            . = ALIGN(16);
            *(.NMIExceptionVector.text)
            . = ALIGN(16);
            *(.KernelExceptionVector.text)
            LONG(0)
            LONG(0)
            LONG(0)
            LONG(0)
            . = ALIGN(16);
            *(.UserExceptionVector.text)
            LONG(0)
            LONG(0)
            LONG(0)
            LONG(0)
            . = ALIGN(16);
            *(.DoubleExceptionVector.text)
            LONG(0)
            LONG(0)
            LONG(0)
            LONG(0)
            . = ALIGN (16);
            *(.entry.text)
            *(.init.literal)
            *(.init)
            *(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
            *(.fini.literal)
            *(.fini)
            *(.gnu.version)
            _text_end = ABSOLUTE(.);
            _etext = .;
        } >iram1_0_seg :iram1_0_phdr
    
        .lit4 : ALIGN(4)
        {
            _lit4_start = ABSOLUTE(.);
            *(*.lit4)
            *(.lit4.*)
            *(.gnu.linkonce.lit4.*)
            _lit4_end = ABSOLUTE(.);
        } >iram1_0_seg :iram1_0_phdr
    
        .data : ALIGN(4)
        {
            _data_start = ABSOLUTE(.);
            *(.data)
            *(.data.*)
            *(.gnu.linkonce.d.*)
            *(.data1)
            *(.sdata)
            *(.sdata.*)
            *(.gnu.linkonce.s.*)
            *(.sdata2)
            *(.sdata2.*)
            *(.gnu.linkonce.s2.*)
            *(.jcr)
            _data_end = ABSOLUTE(.);
        } >dram0_0_seg :dram0_0_phdr
    
        .rodata : ALIGN(4)
        {
            _rodata_start = ABSOLUTE(.);
            *(.rodata)
            *(.rodata.*)
            *(.gnu.linkonce.r.*)
            *(.rodata1)
            __XT_EXCEPTION_TABLE__ = ABSOLUTE(.);
            *(.xt_except_table)
            *(.gcc_except_table)
            *(.gnu.linkonce.e.*)
            *(.gnu.version_r)
            *(.eh_frame)
            /*  C++ constructor and destructor tables, properly ordered:  */
            KEEP (*crtbegin.o(.ctors))
            KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
            KEEP (*(SORT(.ctors.*)))
            KEEP (*(.ctors))
            KEEP (*crtbegin.o(.dtors))
            KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
            KEEP (*(SORT(.dtors.*)))
            KEEP (*(.dtors))
            /*  C++ exception handlers table:  */
            __XT_EXCEPTION_DESCS__ = ABSOLUTE(.);
            *(.xt_except_desc)
            *(.gnu.linkonce.h.*)
            __XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
            *(.xt_except_desc_end)
            *(.dynamic)
            *(.gnu.version_d)
            . = ALIGN(4);        /* this table MUST be 4-byte aligned */
            _bss_table_start = ABSOLUTE(.);
            LONG(_bss_start)
            LONG(_bss_end)
            _bss_table_end = ABSOLUTE(.);
            _rodata_end = ABSOLUTE(.);
        } >dram0_0_seg :dram0_0_phdr
    
        .bss ALIGN(8) (NOLOAD) : ALIGN(4)
        {
            . = ALIGN (8);
            _bss_start = ABSOLUTE(.);
            *(.dynsbss)
            *(.sbss)
            *(.sbss.*)
            *(.gnu.linkonce.sb.*)
            *(.scommon)
            *(.sbss2)
            *(.sbss2.*)
            *(.gnu.linkonce.sb2.*)
            *(.dynbss)
            *(.bss)
            *(.bss.*)
            *(.gnu.linkonce.b.*)
            *(COMMON)
            . = ALIGN (8);
            _bss_end = ABSOLUTE(.);
            _heap_start = ABSOLUTE(.);
        } >dram0_0_seg :dram0_0_bss_phdr
    }
    
    /* get ROM code address */
    INCLUDE "eagle.rom.addr.v6.ld"