mirror of
https://github.com/esp8266/Arduino.git
synced 2025-05-28 03:41:25 +03:00
07b4c09b90
RODATA can be copied automatically by the bootrom, so no reason not to allow its use for strings and constants in eboot.c Revert to pfalcon's original uzlib since the single patch to remove RODATA is not required. Rationalize eboot.ld linker script, clean up BSS and init it in code. Saves 112 bytes of space in the bootloader sector by removing the extra code associated with literal loads. * Move CRC out of bootload sector We added protection to only erase the bootload sector when flashing an image when the new sector != the old sector. This was intended to minimize the chance of bricking (i.e. if there was a powerfail during flashing of the boot sector the chip would be dead). Unfortunately, by placing the CRC inside the eboot sector *every* application will have a unique eboot sector (due to the crc/len), so this protection doesn't work. Move the CRC into the first 8 bytes of IROM itself. This frees up extra space in the boot sector and ensures that eboot won't be reflashed unless there really is an eboot change.
276 lines
7.8 KiB
C++
276 lines
7.8 KiB
C++
/* This linker script generated from xt-genldscripts.tpp for LSP . */
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/* Linker Script for ld -N */
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/* The restriction to one MEMORY command, appears to be a restriction in
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past versions. https://stackoverflow.com/a/55673816
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This 2nd MEMORY command appears to work fine.
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*/
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MEMORY
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{
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iram1_0_seg : org = 0x40100000, len = MMU_IRAM_SIZE
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}
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PHDRS
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{
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dport0_0_phdr PT_LOAD;
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dram0_0_phdr PT_LOAD;
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dram0_0_bss_phdr PT_LOAD;
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iram1_0_phdr PT_LOAD;
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irom0_0_phdr PT_LOAD;
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}
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/* Default entry point: */
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ENTRY(app_entry)
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EXTERN(_DebugExceptionVector)
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EXTERN(_DoubleExceptionVector)
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EXTERN(_KernelExceptionVector)
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EXTERN(_NMIExceptionVector)
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EXTERN(_UserExceptionVector)
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EXTERN(core_version)
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PROVIDE(_memmap_vecbase_reset = 0x40000000);
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/* Various memory-map dependent cache attribute settings: */
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_memmap_cacheattr_wb_base = 0x00000110;
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_memmap_cacheattr_wt_base = 0x00000110;
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_memmap_cacheattr_bp_base = 0x00000220;
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_memmap_cacheattr_unused_mask = 0xFFFFF00F;
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_memmap_cacheattr_wb_trapnull = 0x2222211F;
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_memmap_cacheattr_wba_trapnull = 0x2222211F;
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_memmap_cacheattr_wbna_trapnull = 0x2222211F;
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_memmap_cacheattr_wt_trapnull = 0x2222211F;
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_memmap_cacheattr_bp_trapnull = 0x2222222F;
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_memmap_cacheattr_wb_strict = 0xFFFFF11F;
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_memmap_cacheattr_wt_strict = 0xFFFFF11F;
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_memmap_cacheattr_bp_strict = 0xFFFFF22F;
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_memmap_cacheattr_wb_allvalid = 0x22222112;
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_memmap_cacheattr_wt_allvalid = 0x22222112;
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_memmap_cacheattr_bp_allvalid = 0x22222222;
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PROVIDE(_memmap_cacheattr_reset = _memmap_cacheattr_wb_trapnull);
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SECTIONS
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{
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.dport0.rodata : ALIGN(4)
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{
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_dport0_rodata_start = ABSOLUTE(.);
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*(.dport0.rodata)
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*(.dport.rodata)
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_dport0_rodata_end = ABSOLUTE(.);
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} >dport0_0_seg :dport0_0_phdr
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.dport0.literal : ALIGN(4)
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{
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_dport0_literal_start = ABSOLUTE(.);
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*(.dport0.literal)
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*(.dport.literal)
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_dport0_literal_end = ABSOLUTE(.);
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} >dport0_0_seg :dport0_0_phdr
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.dport0.data : ALIGN(4)
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{
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_dport0_data_start = ABSOLUTE(.);
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*(.dport0.data)
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*(.dport.data)
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_dport0_data_end = ABSOLUTE(.);
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} >dport0_0_seg :dport0_0_phdr
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.data : ALIGN(4)
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{
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_data_start = ABSOLUTE(.);
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d.*)
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*(.data1)
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*(.sdata)
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*(.sdata.*)
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*(.gnu.linkonce.s.*)
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*(.sdata2)
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*(.sdata2.*)
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*(.gnu.linkonce.s2.*)
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*(.jcr)
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. = ALIGN(4);
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_Pri_3_HandlerAddress = ABSOLUTE(.);
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_data_end = ABSOLUTE(.);
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} >dram0_0_seg :dram0_0_phdr
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.noinit : ALIGN(4)
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{
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*(.noinit)
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} >dram0_0_seg :dram0_0_phdr
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#ifdef VTABLES_IN_DRAM
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#include "eagle.app.v6.common.ld.vtables.h"
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#endif
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/* IRAM is split into .text and .text1 to allow for moving specific */
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/* functions into IRAM that would be matched by the irom0.text matcher */
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.text : ALIGN(4)
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{
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_stext = .;
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_text_start = ABSOLUTE(.);
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*(.UserEnter.text)
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. = ALIGN(16);
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*(.DebugExceptionVector.text)
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. = ALIGN(16);
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*(.NMIExceptionVector.text)
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. = ALIGN(16);
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*(.KernelExceptionVector.text)
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LONG(0)
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LONG(0)
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LONG(0)
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LONG(0)
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. = ALIGN(16);
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*(.UserExceptionVector.text)
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LONG(0)
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LONG(0)
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LONG(0)
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LONG(0)
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. = ALIGN(16);
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*(.DoubleExceptionVector.text)
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LONG(0)
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LONG(0)
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LONG(0)
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LONG(0)
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. = ALIGN (16);
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*(.entry.text)
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*(.init.literal)
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*(.init)
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*(.text.app_entry*) /* The main startup code */
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*(.text.gdbstub*, .text.gdb_init) /* Any GDB hooks */
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/* all functional callers are placed in IRAM (including SPI/IRQ callbacks/etc) here */
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*(.text._ZNKSt8functionIF*EE*) /* std::function<any(...)>::operator()() const */
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} >iram1_0_seg :iram1_0_phdr
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.irom0.text : ALIGN(4)
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{
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_irom0_text_start = ABSOLUTE(.);
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/* Stuff the CRC in well known symbols at a well known location */
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__crc_len = ABSOLUTE(.);
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LONG(0x00000000);
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__crc_val = ABSOLUTE(.);
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LONG(0x00000000);
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*(.ver_number)
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*.c.o(.literal*, .text*)
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*.cpp.o(EXCLUDE_FILE (umm_malloc.cpp.o) .literal*, EXCLUDE_FILE (umm_malloc.cpp.o) .text*)
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*.cc.o(.literal*, .text*)
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#ifdef VTABLES_IN_FLASH
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*(.rodata._ZTV*) /* C++ vtables */
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#endif
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*libgcc.a:unwind-dw2.o(.literal .text .rodata .literal.* .text.* .rodata.*)
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*libgcc.a:unwind-dw2-fde.o(.literal .text .rodata .literal.* .text.* .rodata.*)
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*libc.a:(.literal .text .literal.* .text.*)
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*libm.a:(.literal .text .literal.* .text.*)
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#ifdef FP_IN_IROM
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*libgcc.a:*f2.o(.literal .text)
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*libgcc.a:*f3.o(.literal .text)
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*libgcc.a:*fsi.o(.literal .text)
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*libgcc.a:*fdi.o(.literal .text)
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*libgcc.a:*ifs.o(.literal .text)
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*libgcc.a:*idf.o(.literal .text)
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#endif
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*libgcc.a:_umoddi3.o(.literal .text)
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*libgcc.a:_udivdi3.o(.literal .text)
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*libgcc.a:_divsf3.o(.literal .text)
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*libgcc.a:_fixsfsi.o(.literal .text)
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*libgcc.a:_cmpdf2.o(.literal .text)
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*libgcc.a:_cmpsf2.o(.literal .text)
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*libstdc++.a:( .literal .text .literal.* .text.*)
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*libstdc++-exc.a:( .literal .text .literal.* .text.*)
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*libsmartconfig.a:(.literal .text .literal.* .text.*)
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*liblwip_gcc.a:(.literal .text .literal.* .text.*)
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*liblwip_src.a:(.literal .text .literal.* .text.*)
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*liblwip2-536.a:(.literal .text .literal.* .text.*)
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*liblwip2-1460.a:(.literal .text .literal.* .text.*)
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*liblwip2-536-feat.a:(.literal .text .literal.* .text.*)
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*liblwip2-1460-feat.a:(.literal .text .literal.* .text.*)
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*liblwip6-536-feat.a:(.literal .text .literal.* .text.*)
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*liblwip6-1460-feat.a:(.literal .text .literal.* .text.*)
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*libbearssl.a:(.literal .text .literal.* .text.*)
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*libat.a:(.literal.* .text.*)
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*libcrypto.a:(.literal.* .text.*)
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*libespnow.a:(.literal.* .text.*)
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*libjson.a:(.literal.* .text.*)
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*liblwip.a:(.literal.* .text.*)
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*libmesh.a:(.literal.* .text.*)
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*libnet80211.a:(.literal.* .text.*)
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*libsmartconfig.a:(.literal.* .text.*)
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*libssl.a:(.literal.* .text.*)
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*libupgrade.a:(.literal.* .text.*)
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*libwpa.a:(.literal.* .text.*)
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*libwpa2.a:(.literal.* .text.*)
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*libwps.a:(.literal.* .text.*)
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*(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom0.text.* .irom.text .irom.text.*)
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/* Constant strings in flash (PSTRs) */
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*(.irom0.pstr.*)
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/* Inline flash strings PSTR() within templated code */
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*(.rodata._ZZ*__pstr__*)
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/* __FUNCTION__ locals */
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*(.rodata._ZZ*__FUNCTION__)
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*(.rodata._ZZ*__PRETTY_FUNCTION__)
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*(.rodata._ZZ*__func__)
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/* std::* exception strings, in their own section to allow string coalescing */
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*(.irom.exceptiontext, .rodata.exceptiontext)
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*(.rodata.*__exception_what__*) /* G++ seems to throw out templatized section attributes */
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/* c++ typeof IDs, etc. */
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*(.rodata._ZTIN* .rodata._ZTSN10* .rodata._ZTISt* .rodata._ZTSSt*)
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/* Fundamental type info */
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*(.rodata._ZTIPKc .rodata._ZTIc .rodata._ZTIv .rodata._ZTSv .rodata._ZTSc .rodata._ZTSPKc .rodata._ZTSi .rodata._ZTIi)
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. = ALIGN(4);
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*(.gcc_except_table .gcc_except_table.*)
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. = ALIGN(4);
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__eh_frame = ABSOLUTE(.);
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KEEP(*(.eh_frame))
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. = (. + 7) & ~ 3; /* Add a 0 entry to terminate the list */
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_irom0_text_end = ABSOLUTE(.);
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_flash_code_end = ABSOLUTE(.);
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} >irom0_0_seg :irom0_0_phdr
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.text1 : ALIGN(4)
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{
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*(.literal .text .iram.literal .iram.text .iram.text.* .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
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#ifdef VTABLES_IN_IRAM
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*(.rodata._ZTV*) /* C++ vtables */
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#endif
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*(.fini.literal)
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*(.fini)
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*(.gnu.version)
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_text_end = ABSOLUTE(.);
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_etext = .;
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} >iram1_0_seg :iram1_0_phdr
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#if defined(VTABLES_IN_IRAM) || defined(VTABLES_IN_FLASH)
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#include "eagle.app.v6.common.ld.vtables.h"
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#endif
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.lit4 : ALIGN(4)
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{
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_lit4_start = ABSOLUTE(.);
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*(*.lit4)
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*(.lit4.*)
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*(.gnu.linkonce.lit4.*)
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_lit4_end = ABSOLUTE(.);
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} >iram1_0_seg :iram1_0_phdr
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}
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/* get ROM code address */
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INCLUDE "../ld/eagle.rom.addr.v6.ld"
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