firmware: linker script and startup code reorg.
This commit is contained in:
Ingo Albrecht
parent
3936c397a7
commit
0068f87c1f
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@ -8,28 +8,49 @@ DISPLAY_OBJS=display/font_r8x8.o display/font_r8x8_horiz.o display/st7558.o disp
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ABB_OBJS=abb/twl3025.o
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RF_OBJS=rf/trf6151.o
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# Board- and environment-specific startup code and linker script
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START=board/common/compal_ramload_start.S
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# List of all supported boards
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BOARDS?=compal_e88 compal_e99 gta0x
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compal_COMMON_OBJS=board/common/rffe_compal_dualband.o board/common/calypso_uart.o board/common/calypso_pwl.o
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gta0x_COMMON_OBJS=board/common/rffe_gta0x_triband.o board/common/calypso_uart.o board/common/calypso_pwl.o
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# TI Calypso
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calypso_COMMON_OBJS=board/common/calypso_uart.o board/common/calypso_pwl.o
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# OpenMoko GTA0x
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gta0x_COMMON_OBJS=board/common/rffe_gta0x_triband.o $(calypso_COMMON_OBJS)
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# Compal Generic
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compal_COMMON_OBJS=board/compal/start.o $(calypso_COMMON_OBJS) board/compal/rffe_dualband.o
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compal_COMMON_ENVIRONMENTS=compalram
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compalram_LDS=board/compal/ram.lds
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# Compal E88
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compal_e88_OBJS=$(compal_COMMON_OBJS) board/compal_e88/init.o
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compal_e88_ENVIRONMENTS=$(compal_COMMON_ENVIRONMENTS) e88loader
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e88loader_LDS=board/compal_e88/loader.lds
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e88flash_LDS=board/compal_e88/flash.lds
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# Compal E99
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compal_e99_OBJS=$(compal_COMMON_OBJS) board/compal_e99/init.o
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gta0x_OBJS=$(gta0x_COMMON_OBJS) board/gta0x/init.o
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# List of all supported execution environments
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ENVIRONMENTS?=app ramload osmoload
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app_LDS=board/common/compal_app.lds
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ramload_LDS=board/common/compal_ramload.lds
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osmoload_LDS=board/common/compal_osmoload.lds
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compal_e99_ENVIRONMENTS=$(compal_COMMON_ENVIRONMENTS)
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e99loader_LDS=board/compal_e99/loader.lds
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e99flash_LDS=board/compal_e99/flash.lds
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# List of all applications (add yours here!)
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APPLICATIONS=hello_world compal_dsp_dump layer1 loader simtest
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# Things that go in all applications
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ANY_APP_OBJS+=$(START:.S=.o) $(ABB_OBJS) $(RF_OBJS) $(DISPLAY_OBJS) $(FLASH_OBJS)
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ANY_APP_OBJS+=$(ABB_OBJS) $(RF_OBJS) $(DISPLAY_OBJS) $(FLASH_OBJS)
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ANY_APP_LIBS+=calypso/libcalypso.a layer1/liblayer1.a lib/libmini.a comm/libcomm.a ../../shared/libosmocore/build-target/src/.libs/libosmocore.a
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# Libraries are defined in subdirectories
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@ -111,9 +111,16 @@ ALL_DEPS+=$$($(1)_OBJS:.o=.p) apps/$(1)/main.p
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endef
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# define rules for all defined applications
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$(foreach app,$(APPLICATIONS),$(foreach brd,$(BOARDS),$(foreach env,$(ENVIRONMENTS),$(eval $(call APPLICATION_BOARD_ENVIRONMENT_template,$(app),$(brd),$(env))))))
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$(foreach brd,$(BOARDS),$(eval $(call BOARD_template,$(brd))))
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$(foreach app,$(APPLICATIONS),$(eval $(call APPLICATION_template,$(app))))
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$(foreach app,$(APPLICATIONS), \
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$(foreach brd,$(BOARDS), \
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$(foreach env,$($(brd)_ENVIRONMENTS), \
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$(eval $(call APPLICATION_BOARD_ENVIRONMENT_template,$(app),$(brd),$(env))))))
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$(foreach brd,$(BOARDS), \
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$(eval $(call BOARD_template,$(brd))))
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$(foreach app,$(APPLICATIONS), \
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$(eval $(call APPLICATION_template,$(app))))
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#### LIBRARY RULES ####
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@ -177,6 +184,7 @@ clean:
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.PHONY: distclean
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distclean: clean
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find . -name '*.o' -or -name '*.bin' -or -name '*.map' -or -name '*.lst' -or -name '*.p' -exec rm '{}' ';'
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#### DEPENDENCY LOAD ####
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@ -1,98 +0,0 @@
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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ENTRY(_start)
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MEMORY
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{
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/* compal-loaded binary: text, initialized data */
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LRAM (rw) : ORIGIN = 0x00800000, LENGTH = 0x00010000
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/* compal-loaded binary: unitialized data, stacks, heap */
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DRAM (rw) : ORIGIN = 0x00810000, LENGTH = 0x00010000
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/* remainder of internal ram: this is where we are linking to */
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IRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x00020000
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}
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SECTIONS
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{
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. = 0x820000;
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/* initialization code */
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. = ALIGN(4);
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.text.start : {
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PROVIDE(_start = .);
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KEEP(*(.text.start))
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*(.text.start)
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} > IRAM
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/* exception vectors from 0x80001c to 0x800034 */
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.text.exceptions 0x80001c : AT (LOADADDR(.text.start) + SIZEOF(.text.start)) {
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KEEP(*(.text.exceptions))
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* (.text.exceptions)
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. = ALIGN(4);
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/* constructors and destructors */
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. = ALIGN(4);
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__CTOR_LIST__ = .;
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LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
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KEEP(*(SORT(.ctors)))
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LONG(0) /* end of list */
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__CTOR_END__ = .;
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__DTOR_LIST__ = .;
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LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
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KEEP(*(SORT(.dtors)))
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LONG(0) /* end of list */
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__DTOR_END__ = .;
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} > LRAM
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PROVIDE(_exceptions = LOADADDR(.text.exceptions));
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/* code */
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. = ALIGN(4);
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.text (LOADADDR(.text.exceptions) + SIZEOF(.text.exceptions)) :
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AT (LOADADDR(.text.exceptions) + SIZEOF(.text.exceptions)) {
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/* regular code */
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*(.text*)
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/* gcc voodoo */
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*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
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} > IRAM
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PROVIDE(_text_start = LOADADDR(.text));
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PROVIDE(_text_end = LOADADDR(.text) + SIZEOF(.text));
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/* read-only data */
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. = ALIGN(4);
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.rodata : {
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*(.rodata*)
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} > IRAM
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PROVIDE(_rodata_start = LOADADDR(.rodata));
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PROVIDE(_rodata_end = LOADADDR(.rodata) + SIZEOF(.rodata));
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/* initialized data */
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. = ALIGN(4);
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.data : {
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*(.data)
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} > IRAM
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PROVIDE(_data_start = LOADADDR(.data));
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PROVIDE(_data_end = LOADADDR(.data) + SIZEOF(.data));
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/* pic offset tables */
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. = ALIGN(4);
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.got : {
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*(.got)
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*(.got.plt) *(.igot.plt) *(.got) *(.igot)
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} > IRAM
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PROVIDE(_got_start = LOADADDR(.got));
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PROVIDE(_got_end = LOADADDR(.got) + SIZEOF(.got));
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/* uninitialized data */
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.bss (NOLOAD) : {
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. = ALIGN(4);
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__bss_start = .;
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*(.bss)
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} > IRAM
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. = ALIGN(4);
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__bss_end = .;
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PROVIDE(_bss_start = __bss_start);
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PROVIDE(_bss_end = __bss_end);
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/* end of image */
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. = ALIGN(4);
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_end = .;
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PROVIDE(end = .);
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}
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@ -1,3 +1,10 @@
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/*
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* Linker script for running from internal SRAM on Compal phones
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*
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* This script is tailored specifically to the requirements imposed
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* on us by the Compal bootloader.
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*
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*/
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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ENTRY(_start)
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