diff --git a/esp8266/esp8266.ld b/esp8266/esp8266.ld
index a6a4b93..960c751 100644
--- a/esp8266/esp8266.ld
+++ b/esp8266/esp8266.ld
@@ -8,298 +8,5 @@
     irom0_0_seg :  org = 0x40209000, len = 0x87000
 }
 
-/* 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(firmware_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/argcheck.o*(.literal* .text*)
-        *py/asm*.o*(.literal* .text*)
-        *py/bc.o*(.literal* .text*)
-        *py/binary.o*(.literal* .text*)
-        *py/builtin*.o*(.literal* .text*)
-        *py/compile.o*(.literal* .text*)
-        *py/emit*.o*(.literal* .text*)
-        *py/persistentcode*.o*(.literal* .text*)
-        *py/formatfloat.o*(.literal* .text*)
-        *py/frozenmod.o*(.literal* .text*)
-        *py/gc.o*(.literal* .text*)
-        *py/reader*.o*(.literal* .text*)
-        *py/lexer*.o*(.literal* .text*)
-        *py/malloc*.o*(.literal* .text*)
-        *py/map*.o*(.literal* .text*)
-        *py/mod*.o*(.literal* .text*)
-        *py/mpprint.o*(.literal* .text*)
-        *py/mpstate.o*(.literal* .text*)
-        *py/mpz.o*(.literal* .text*)
-        *py/native*.o*(.literal* .text*)
-        *py/nlr*.o*(.literal* .text*)
-        *py/obj*.o*(.literal* .text*)
-        *py/opmethods.o*(.literal* .text*)
-        *py/parse*.o*(.literal* .text*)
-        *py/qstr.o*(.literal* .text*)
-        *py/repl.o*(.literal* .text*)
-        *py/runtime.o*(.literal* .text*)
-        *py/scope.o*(.literal* .text*)
-        *py/sequence.o*(.literal* .text*)
-        *py/showbc.o*(.literal* .text*)
-        *py/smallint.o*(.literal* .text*)
-        *py/stackctrl.o*(.literal* .text*)
-        *py/stream.o*(.literal* .text*)
-        *py/unicode.o*(.literal* .text*)
-        *py/vm.o*(.literal* .text*)
-        *py/vstr.o*(.literal* .text*)
-        *py/warning.o*(.literal* .text*)
-
-        *extmod/*.o*(.literal* .text*)
-
-        *lib/fatfs/*.o*(.literal*, .text*)
-        */libaxtls.a:(.literal*, .text*)
-        *lib/berkeley-db-1.xx/*.o(.literal*, .text*)
-        *lib/libm/*.o*(.literal*, .text*)
-        *lib/mp-readline/*.o(.literal*, .text*)
-        *lib/netutils/*.o*(.literal*, .text*)
-        *lib/timeutils/*.o*(.literal*, .text*)
-        *lib/utils/*.o*(.literal*, .text*)
-
-        *stmhal/pybstdio.o(.literal*, .text*)
-
-        build/main.o(.literal* .text*)
-        *gccollect.o(.literal* .text*)
-        *gchelper.o(.literal* .text*)
-        *help.o(.literal* .text*)
-        *lexerstr32.o(.literal* .text*)
-        *utils.o(.literal* .text*)
-        *modpyb.o(.literal*, .text*)
-        *machine_pin.o(.literal*, .text*)
-        *machine_pwm.o(.literal*, .text*)
-        *machine_rtc.o(.literal*, .text*)
-        *machine_adc.o(.literal*, .text*)
-        *machine_uart.o(.literal*, .text*)
-        *modpybi2c.o(.literal*, .text*)
-        *modmachine.o(.literal*, .text*)
-        *machine_wdt.o(.literal*, .text*)
-        *machine_spi.o(.literal*, .text*)
-        *machine_hspi.o(.literal*, .text*)
-        *hspi.o(.literal*, .text*)
-        *modesp.o(.literal* .text*)
-        *modnetwork.o(.literal* .text*)
-        *moduos.o(.literal* .text*)
-        *modutime.o(.literal* .text*)
-        *modlwip.o(.literal* .text*)
-        *modsocket.o(.literal* .text*)
-        *modonewire.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)
-        *.o(.rodata.mp_type_*) /* catches type: mp_obj_type_t */
-        *.o(.rodata.*_locals_dict*) /* catches types: mp_obj_dict_t, mp_map_elem_t */
-        *.o(.rodata.mp_module_*) /* catches types: mp_obj_module_t, mp_obj_dict_t, mp_map_elem_t */
-        */frozen.o(.rodata.mp_frozen_sizes) /* frozen modules */
-        */frozen.o(.rodata.mp_frozen_content) /* frozen modules */
-
-        /* for -mforce-l32 */
-        build/*.o(.rodata*)
-
-        _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.* .iram0.literal .iram0.text .iram0.text.*.literal .iram0.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(.);
-        *(.sdk.version)
-        *(.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"
+/* define common sections and symbols */
+INCLUDE esp8266_common.ld
diff --git a/esp8266/esp8266_512k.ld b/esp8266/esp8266_512k.ld
index 2bffcab..0ae663d 100644
--- a/esp8266/esp8266_512k.ld
+++ b/esp8266/esp8266_512k.ld
@@ -8,298 +8,5 @@
     irom0_0_seg :  org = 0x40209000, len = 0x72000
 }
 
-/* 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(firmware_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/argcheck.o*(.literal* .text*)
-        *py/asm*.o*(.literal* .text*)
-        *py/bc.o*(.literal* .text*)
-        *py/binary.o*(.literal* .text*)
-        *py/builtin*.o*(.literal* .text*)
-        *py/compile.o*(.literal* .text*)
-        *py/emit*.o*(.literal* .text*)
-        *py/persistentcode*.o*(.literal* .text*)
-        *py/formatfloat.o*(.literal* .text*)
-        *py/frozenmod.o*(.literal* .text*)
-        *py/gc.o*(.literal* .text*)
-        *py/reader*.o*(.literal* .text*)
-        *py/lexer*.o*(.literal* .text*)
-        *py/malloc*.o*(.literal* .text*)
-        *py/map*.o*(.literal* .text*)
-        *py/mod*.o*(.literal* .text*)
-        *py/mpprint.o*(.literal* .text*)
-        *py/mpstate.o*(.literal* .text*)
-        *py/mpz.o*(.literal* .text*)
-        *py/native*.o*(.literal* .text*)
-        *py/nlr*.o*(.literal* .text*)
-        *py/obj*.o*(.literal* .text*)
-        *py/opmethods.o*(.literal* .text*)
-        *py/parse*.o*(.literal* .text*)
-        *py/qstr.o*(.literal* .text*)
-        *py/repl.o*(.literal* .text*)
-        *py/runtime.o*(.literal* .text*)
-        *py/scope.o*(.literal* .text*)
-        *py/sequence.o*(.literal* .text*)
-        *py/showbc.o*(.literal* .text*)
-        *py/smallint.o*(.literal* .text*)
-        *py/stackctrl.o*(.literal* .text*)
-        *py/stream.o*(.literal* .text*)
-        *py/unicode.o*(.literal* .text*)
-        *py/vm.o*(.literal* .text*)
-        *py/vstr.o*(.literal* .text*)
-        *py/warning.o*(.literal* .text*)
-
-        *extmod/*.o*(.literal* .text*)
-
-        *lib/fatfs/*.o*(.literal*, .text*)
-        */libaxtls.a:(.literal*, .text*)
-        *lib/berkeley-db-1.xx/*.o(.literal*, .text*)
-        *lib/libm/*.o*(.literal*, .text*)
-        *lib/mp-readline/*.o(.literal*, .text*)
-        *lib/netutils/*.o*(.literal*, .text*)
-        *lib/timeutils/*.o*(.literal*, .text*)
-        *lib/utils/*.o*(.literal*, .text*)
-
-        *stmhal/pybstdio.o(.literal*, .text*)
-
-        build/main.o(.literal* .text*)
-        *gccollect.o(.literal* .text*)
-        *gchelper.o(.literal* .text*)
-        *help.o(.literal* .text*)
-        *lexerstr32.o(.literal* .text*)
-        *utils.o(.literal* .text*)
-        *modpyb.o(.literal*, .text*)
-        *machine_pin.o(.literal*, .text*)
-        *machine_pwm.o(.literal*, .text*)
-        *machine_rtc.o(.literal*, .text*)
-        *machine_adc.o(.literal*, .text*)
-        *machine_uart.o(.literal*, .text*)
-        *modpybi2c.o(.literal*, .text*)
-        *modmachine.o(.literal*, .text*)
-        *machine_wdt.o(.literal*, .text*)
-        *machine_spi.o(.literal*, .text*)
-        *machine_hspi.o(.literal*, .text*)
-        *hspi.o(.literal*, .text*)
-        *modesp.o(.literal* .text*)
-        *modnetwork.o(.literal* .text*)
-        *moduos.o(.literal* .text*)
-        *modutime.o(.literal* .text*)
-        *modlwip.o(.literal* .text*)
-        *modsocket.o(.literal* .text*)
-        *modonewire.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)
-        *.o(.rodata.mp_type_*) /* catches type: mp_obj_type_t */
-        *.o(.rodata.*_locals_dict*) /* catches types: mp_obj_dict_t, mp_map_elem_t */
-        *.o(.rodata.mp_module_*) /* catches types: mp_obj_module_t, mp_obj_dict_t, mp_map_elem_t */
-        */frozen.o(.rodata.mp_frozen_sizes) /* frozen modules */
-        */frozen.o(.rodata.mp_frozen_content) /* frozen modules */
-
-        /* for -mforce-l32 */
-        build/*.o(.rodata*)
-
-        _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.* .iram0.literal .iram0.text .iram0.text.*.literal .iram0.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(.);
-        *(.sdk.version)
-        *(.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"
+/* define common sections and symbols */
+INCLUDE esp8266_common.ld
diff --git a/esp8266/esp8266_common.ld b/esp8266/esp8266_common.ld
new file mode 100644
index 0000000..d22a538
--- /dev/null
+++ b/esp8266/esp8266_common.ld
@@ -0,0 +1,297 @@
+/* GNU linker script for ESP8266, common sections and symbols */
+
+/* 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(firmware_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/argcheck.o*(.literal* .text*)
+        *py/asm*.o*(.literal* .text*)
+        *py/bc.o*(.literal* .text*)
+        *py/binary.o*(.literal* .text*)
+        *py/builtin*.o*(.literal* .text*)
+        *py/compile.o*(.literal* .text*)
+        *py/emit*.o*(.literal* .text*)
+        *py/persistentcode*.o*(.literal* .text*)
+        *py/formatfloat.o*(.literal* .text*)
+        *py/frozenmod.o*(.literal* .text*)
+        *py/gc.o*(.literal* .text*)
+        *py/reader*.o*(.literal* .text*)
+        *py/lexer*.o*(.literal* .text*)
+        *py/malloc*.o*(.literal* .text*)
+        *py/map*.o*(.literal* .text*)
+        *py/mod*.o*(.literal* .text*)
+        *py/mpprint.o*(.literal* .text*)
+        *py/mpstate.o*(.literal* .text*)
+        *py/mpz.o*(.literal* .text*)
+        *py/native*.o*(.literal* .text*)
+        *py/nlr*.o*(.literal* .text*)
+        *py/obj*.o*(.literal* .text*)
+        *py/opmethods.o*(.literal* .text*)
+        *py/parse*.o*(.literal* .text*)
+        *py/qstr.o*(.literal* .text*)
+        *py/repl.o*(.literal* .text*)
+        *py/runtime.o*(.literal* .text*)
+        *py/scope.o*(.literal* .text*)
+        *py/sequence.o*(.literal* .text*)
+        *py/showbc.o*(.literal* .text*)
+        *py/smallint.o*(.literal* .text*)
+        *py/stackctrl.o*(.literal* .text*)
+        *py/stream.o*(.literal* .text*)
+        *py/unicode.o*(.literal* .text*)
+        *py/vm.o*(.literal* .text*)
+        *py/vstr.o*(.literal* .text*)
+        *py/warning.o*(.literal* .text*)
+
+        *extmod/*.o*(.literal* .text*)
+
+        *lib/fatfs/*.o*(.literal*, .text*)
+        */libaxtls.a:(.literal*, .text*)
+        *lib/berkeley-db-1.xx/*.o(.literal*, .text*)
+        *lib/libm/*.o*(.literal*, .text*)
+        *lib/mp-readline/*.o(.literal*, .text*)
+        *lib/netutils/*.o*(.literal*, .text*)
+        *lib/timeutils/*.o*(.literal*, .text*)
+        *lib/utils/*.o*(.literal*, .text*)
+
+        *stmhal/pybstdio.o(.literal*, .text*)
+
+        build/main.o(.literal* .text*)
+        *gccollect.o(.literal* .text*)
+        *gchelper.o(.literal* .text*)
+        *help.o(.literal* .text*)
+        *lexerstr32.o(.literal* .text*)
+        *utils.o(.literal* .text*)
+        *modpyb.o(.literal*, .text*)
+        *machine_pin.o(.literal*, .text*)
+        *machine_pwm.o(.literal*, .text*)
+        *machine_rtc.o(.literal*, .text*)
+        *machine_adc.o(.literal*, .text*)
+        *machine_uart.o(.literal*, .text*)
+        *modpybi2c.o(.literal*, .text*)
+        *modmachine.o(.literal*, .text*)
+        *machine_wdt.o(.literal*, .text*)
+        *machine_spi.o(.literal*, .text*)
+        *machine_hspi.o(.literal*, .text*)
+        *hspi.o(.literal*, .text*)
+        *modesp.o(.literal* .text*)
+        *modnetwork.o(.literal* .text*)
+        *moduos.o(.literal* .text*)
+        *modutime.o(.literal* .text*)
+        *modlwip.o(.literal* .text*)
+        *modsocket.o(.literal* .text*)
+        *modonewire.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)
+        *.o(.rodata.mp_type_*) /* catches type: mp_obj_type_t */
+        *.o(.rodata.*_locals_dict*) /* catches types: mp_obj_dict_t, mp_map_elem_t */
+        *.o(.rodata.mp_module_*) /* catches types: mp_obj_module_t, mp_obj_dict_t, mp_map_elem_t */
+        */frozen.o(.rodata.mp_frozen_sizes) /* frozen modules */
+        */frozen.o(.rodata.mp_frozen_content) /* frozen modules */
+
+        /* for -mforce-l32 */
+        build/*.o(.rodata*)
+
+        _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.* .iram0.literal .iram0.text .iram0.text.*.literal .iram0.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(.);
+        *(.sdk.version)
+        *(.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"
diff --git a/esp8266/esp8266_ota.ld b/esp8266/esp8266_ota.ld
index aceeb25..d9afaa8 100644
--- a/esp8266/esp8266_ota.ld
+++ b/esp8266/esp8266_ota.ld
@@ -9,298 +9,5 @@
     irom0_0_seg :  org = 0x40200000 + 0x3c000 + 0x9000, len = 0x87000
 }
 
-/* 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(firmware_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/argcheck.o*(.literal* .text*)
-        *py/asm*.o*(.literal* .text*)
-        *py/bc.o*(.literal* .text*)
-        *py/binary.o*(.literal* .text*)
-        *py/builtin*.o*(.literal* .text*)
-        *py/compile.o*(.literal* .text*)
-        *py/emit*.o*(.literal* .text*)
-        *py/persistentcode*.o*(.literal* .text*)
-        *py/formatfloat.o*(.literal* .text*)
-        *py/frozenmod.o*(.literal* .text*)
-        *py/gc.o*(.literal* .text*)
-        *py/reader*.o*(.literal* .text*)
-        *py/lexer*.o*(.literal* .text*)
-        *py/malloc*.o*(.literal* .text*)
-        *py/map*.o*(.literal* .text*)
-        *py/mod*.o*(.literal* .text*)
-        *py/mpprint.o*(.literal* .text*)
-        *py/mpstate.o*(.literal* .text*)
-        *py/mpz.o*(.literal* .text*)
-        *py/native*.o*(.literal* .text*)
-        *py/nlr*.o*(.literal* .text*)
-        *py/obj*.o*(.literal* .text*)
-        *py/opmethods.o*(.literal* .text*)
-        *py/parse*.o*(.literal* .text*)
-        *py/qstr.o*(.literal* .text*)
-        *py/repl.o*(.literal* .text*)
-        *py/runtime.o*(.literal* .text*)
-        *py/scope.o*(.literal* .text*)
-        *py/sequence.o*(.literal* .text*)
-        *py/showbc.o*(.literal* .text*)
-        *py/smallint.o*(.literal* .text*)
-        *py/stackctrl.o*(.literal* .text*)
-        *py/stream.o*(.literal* .text*)
-        *py/unicode.o*(.literal* .text*)
-        *py/vm.o*(.literal* .text*)
-        *py/vstr.o*(.literal* .text*)
-        *py/warning.o*(.literal* .text*)
-
-        *extmod/*.o*(.literal* .text*)
-
-        *lib/fatfs/*.o*(.literal*, .text*)
-        */libaxtls.a:(.literal*, .text*)
-        *lib/berkeley-db-1.xx/*.o(.literal*, .text*)
-        *lib/libm/*.o*(.literal*, .text*)
-        *lib/mp-readline/*.o(.literal*, .text*)
-        *lib/netutils/*.o*(.literal*, .text*)
-        *lib/timeutils/*.o*(.literal*, .text*)
-        *lib/utils/*.o*(.literal*, .text*)
-
-        *stmhal/pybstdio.o(.literal*, .text*)
-
-        build/main.o(.literal* .text*)
-        *gccollect.o(.literal* .text*)
-        *gchelper.o(.literal* .text*)
-        *help.o(.literal* .text*)
-        *lexerstr32.o(.literal* .text*)
-        *utils.o(.literal* .text*)
-        *modpyb.o(.literal*, .text*)
-        *machine_pin.o(.literal*, .text*)
-        *machine_pwm.o(.literal*, .text*)
-        *machine_rtc.o(.literal*, .text*)
-        *machine_adc.o(.literal*, .text*)
-        *machine_uart.o(.literal*, .text*)
-        *modpybi2c.o(.literal*, .text*)
-        *modmachine.o(.literal*, .text*)
-        *machine_wdt.o(.literal*, .text*)
-        *machine_spi.o(.literal*, .text*)
-        *machine_hspi.o(.literal*, .text*)
-        *hspi.o(.literal*, .text*)
-        *modesp.o(.literal* .text*)
-        *modnetwork.o(.literal* .text*)
-        *moduos.o(.literal* .text*)
-        *modutime.o(.literal* .text*)
-        *modlwip.o(.literal* .text*)
-        *modsocket.o(.literal* .text*)
-        *modonewire.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)
-        *.o(.rodata.mp_type_*) /* catches type: mp_obj_type_t */
-        *.o(.rodata.*_locals_dict*) /* catches types: mp_obj_dict_t, mp_map_elem_t */
-        *.o(.rodata.mp_module_*) /* catches types: mp_obj_module_t, mp_obj_dict_t, mp_map_elem_t */
-        */frozen.o(.rodata.mp_frozen_sizes) /* frozen modules */
-        */frozen.o(.rodata.mp_frozen_content) /* frozen modules */
-
-        /* for -mforce-l32 */
-        build/*.o(.rodata*)
-
-        _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.* .iram0.literal .iram0.text .iram0.text.*.literal .iram0.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(.);
-        *(.sdk.version)
-        *(.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"
+/* define common sections and symbols */
+INCLUDE esp8266_common.ld