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circuitpython/esp8266/esp8266_512k.ld
Paul Sokolovsky 2550d7dfd2 esp8266: Add support for building firmware version for 512K modules. 
To build, "make 512k".

Disabled are FatFs support (no space for filesystem), Python functionality
related to files, btree module, and recently enabled features. With all
this, there's only one free FlashROM page.
2016-10-25 00:43:11 +03:00

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/* 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 = 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/formatfloat.o*(.literal* .text*)
*py/frozenmod.o*(.literal* .text*)
*py/gc.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*)
*modpybpin.o(.literal*, .text*)
*modpybpwm.o(.literal*, .text*)
*modpybrtc.o(.literal*, .text*)
*modpybadc.o(.literal*, .text*)
*modpybuart.o(.literal*, .text*)
*modpybi2c.o(.literal*, .text*)
*modmachine.o(.literal*, .text*)
*modmachinewdt.o(.literal*, .text*)
*modpybspi.o(.literal*, .text*)
*modpybhspi.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"
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