d664e32394
For config-only components, component.mk should now contain "COMPONENT_CONFIG_ONLY := 1" Also refactored some of the generation of linker paths, library list. This required cleaning up the way the bootloader project works, it's now mostly independent from the parent.
149 lines
3.8 KiB
Plaintext
149 lines
3.8 KiB
Plaintext
/*
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Linker file used to link the bootloader.
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*WARNING* For now this linker dumps everything into IRAM/DRAM. ToDo: move
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some/most stuff to DROM/IROM.
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*/
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/* THESE ARE THE VIRTUAL RUNTIME ADDRESSES */
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/* The load addresses are defined later using the AT statements. */
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MEMORY
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{
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/* All these values assume the flash cache is on, and have the blocks this uses subtracted from the length
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of the various regions. The 'data access port' dram/drom regions map to the same iram/irom regions but
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are connected to the data port of the CPU and eg allow bytewise access. */
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dport0_seg (RW) : org = 0x3FF00000, len = 0x10 /* IO */
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iram_seg (RWX) : org = 0x40080000, len = 0x400 /* 1k of IRAM used by bootloader functions which need to flush/enable APP CPU cache */
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iram_pool_1_seg (RWX) : org = 0x40078000, len = 0x8000 /* IRAM POOL1, used for APP CPU cache. We can abuse it in bootloader because APP CPU is still held in reset, until we enable APP CPU cache */
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dram_seg (RW) : org = 0x3FFF0000, len = 0x10000 /* 64k at the end of DRAM, after ROM bootloader stack */
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}
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/* Default entry point: */
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ENTRY(call_start_cpu0);
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SECTIONS
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{
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.iram1.text :
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{
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_init_start = ABSOLUTE(.);
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*(.UserEnter.literal);
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*(.UserEnter.text);
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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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_init_end = ABSOLUTE(.);
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/* Code marked as runnning out of IRAM */
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_iram_text_start = ABSOLUTE(.);
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*(.iram1 .iram1.*)
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_iram_text_end = ABSOLUTE(.);
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} > iram_seg
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/* Shared RAM */
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.dram0.bss (NOLOAD) :
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{
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. = ALIGN (8);
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_bss_start = ABSOLUTE(.);
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*(.dynsbss)
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*(.sbss)
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*(.sbss.*)
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*(.gnu.linkonce.sb.*)
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*(.scommon)
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*(.sbss2)
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*(.sbss2.*)
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*(.gnu.linkonce.sb2.*)
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*(.dynbss)
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KEEP(*(.bss))
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN (8);
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_bss_end = ABSOLUTE(.);
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} >dram_seg
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.dram0.data :
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{
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_data_start = ABSOLUTE(.);
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KEEP(*(.data))
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KEEP(*(.data.*))
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KEEP(*(.gnu.linkonce.d.*))
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KEEP(*(.data1))
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KEEP(*(.sdata))
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KEEP(*(.sdata.*))
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KEEP(*(.gnu.linkonce.s.*))
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KEEP(*(.sdata2))
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KEEP(*(.sdata2.*))
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KEEP(*(.gnu.linkonce.s2.*))
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KEEP(*(.jcr))
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_data_end = ABSOLUTE(.);
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} >dram_seg
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.dram0.rodata :
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{
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_rodata_start = ABSOLUTE(.);
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*(.rodata)
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*(.rodata.*)
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*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
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*(.gnu.linkonce.r.*)
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*(.rodata1)
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__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
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*(.xt_except_table)
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*(.gcc_except_table)
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*(.gnu.linkonce.e.*)
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*(.gnu.version_r)
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*(.eh_frame)
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. = (. + 3) & ~ 3;
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/* C++ constructor and destructor tables, properly ordered: */
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__init_array_start = ABSOLUTE(.);
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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__init_array_end = ABSOLUTE(.);
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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/* C++ exception handlers table: */
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__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
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*(.xt_except_desc)
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*(.gnu.linkonce.h.*)
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__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
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*(.xt_except_desc_end)
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*(.dynamic)
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*(.gnu.version_d)
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_rodata_end = ABSOLUTE(.);
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/* Literals are also RO data. */
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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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. = ALIGN(4);
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_heap_start = ABSOLUTE(.);
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} >dram_seg
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.iram_pool_1.text :
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{
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_stext = .;
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_text_start = ABSOLUTE(.);
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*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
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*(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
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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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} >iram_pool_1_seg
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}
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