diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 10:35:35 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 13:52:14 +0200 |
commit | 99648958668d3a33ee57974479b36201fe303f34 (patch) | |
tree | 6f27ea790e2823c6156e71219a4f54680263fac6 /bsps/lm32 | |
parent | bsps: Move start files to bsps (diff) | |
download | rtems-99648958668d3a33ee57974479b36201fe303f34.tar.bz2 |
bsps: Move startup files to bsps
Adjust build support files to new directory layout.
This patch is a part of the BSP source reorganization.
Update #3285.
Diffstat (limited to 'bsps/lm32')
-rw-r--r-- | bsps/lm32/lm32_evr/start/bsp_specs | 9 | ||||
-rw-r--r-- | bsps/lm32/lm32_evr/start/linkcmds | 309 | ||||
-rw-r--r-- | bsps/lm32/milkymist/start/bsp_specs | 9 | ||||
-rw-r--r-- | bsps/lm32/milkymist/start/bspclean.c | 61 | ||||
-rw-r--r-- | bsps/lm32/milkymist/start/linkcmds | 308 | ||||
-rw-r--r-- | bsps/lm32/shared/start/bspreset.c | 28 | ||||
-rw-r--r-- | bsps/lm32/shared/start/bspstart.c | 35 |
7 files changed, 759 insertions, 0 deletions
diff --git a/bsps/lm32/lm32_evr/start/bsp_specs b/bsps/lm32/lm32_evr/start/bsp_specs new file mode 100644 index 0000000000..87638cc027 --- /dev/null +++ b/bsps/lm32/lm32_evr/start/bsp_specs @@ -0,0 +1,9 @@ +%rename endfile old_endfile +%rename startfile old_startfile + +*startfile: +%{!qrtems: %(old_startfile)} \ +%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}} + +*endfile: +%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s} diff --git a/bsps/lm32/lm32_evr/start/linkcmds b/bsps/lm32/lm32_evr/start/linkcmds new file mode 100644 index 0000000000..63747f33dc --- /dev/null +++ b/bsps/lm32/lm32_evr/start/linkcmds @@ -0,0 +1,309 @@ +OUTPUT_FORMAT("elf32-lm32", "elf32-lm32", + "elf32-lm32") +OUTPUT_ARCH(lm32) +ENTRY(start) +STARTUP(start.o) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ + +/* + * Declare some sizes. Heap is sized at whatever ram space is left. + */ +RamBase = DEFINED(RamBase) ? RamBase : 0x08000000; +RamSize = DEFINED(RamSize) ? RamSize : 32M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 2M; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000; + +PROVIDE (__stack = 0); +MEMORY { + ebr : ORIGIN = 0x04000000 , LENGTH = 32k + sdram : ORIGIN = 0x08000000 , LENGTH = 32M +} +SECTIONS +{ + .boot : + { + KEEP (*(.boot)) + } > ebr + + /* Read-only sections, merged into text segment: */ + .interp : { *(.interp) } > sdram + .hash : { *(.hash) } > sdram + .dynsym : { *(.dynsym) } > sdram + .dynstr : { *(.dynstr) } > sdram + .gnu.version : { *(.gnu.version) } > sdram + .gnu.version_d : { *(.gnu.version_d) } > sdram + .gnu.version_r : { *(.gnu.version_r) } > sdram + .rela.text : + { *(.rela.text) *(.rela.gnu.linkonce.t*) } > sdram + .rela.data : + { *(.rela.data) *(.rela.gnu.linkonce.d*) } > sdram + .rela.rodata : + { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > sdram + .rela.got : { *(.rela.got) } > sdram + .rela.got1 : { *(.rela.got1) } > sdram + .rela.got2 : { *(.rela.got2) } > sdram + .rela.ctors : { *(.rela.ctors) } > sdram + .rela.dtors : { *(.rela.dtors) } > sdram + .rela.init : { *(.rela.init) } > sdram + .rela.fini : { *(.rela.fini) } > sdram + .rela.bss : { *(.rela.bss) } > sdram + .rela.plt : { *(.rela.plt) } > sdram + .rela.sdata : { *(.rela.sdata) } > sdram + .rela.sbss : { *(.rela.sbss) } > sdram + .rela.sdata2 : { *(.rela.sdata2) } > sdram + .rela.sbss2 : { *(.rela.sbss2) } > sdram + .rela.dyn : { *(.rela.dyn) } > sdram + + .init : { KEEP(*(.init)) } > sdram + + .text : + { + *(.text*) + + /* + * Special FreeBSD sysctl sections. + */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + } > sdram + + .fini : { _fini = .; KEEP(*(.fini)) } > sdram + + .rodata : { *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > sdram + .rodata1 : { *(.rodata1) } > sdram + .tdata : { + _TLS_Data_begin = .; + *(.tdata .tdata.* .gnu.linkonce.td.*) + _TLS_Data_end = .; + } > sdram + .tbss : { + _TLS_BSS_begin = .; + *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) + _TLS_BSS_end = .; + } > sdram + _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; + _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; + _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; + _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; + _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; + _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN(0x10000) + (. & (0x10000 - 1)); + /* Ensure the __preinit_array_start label is properly aligned. We + could instead move the label definition inside the section, but + the linker would then create the section even if it turns out to + be empty, which isn't pretty. */ + . = ALIGN(32 / 8); + PROVIDE (__preinit_array_start = .); + .preinit_array : { *(.preinit_array) } >sdram + PROVIDE (__preinit_array_end = .); + PROVIDE (__init_array_start = .); + .init_array : { *(.init_array) } >sdram + PROVIDE (__init_array_end = .); + PROVIDE (__fini_array_start = .); + .fini_array : { *(.fini_array) } >sdram + PROVIDE (__fini_array_end = .); + +/* _SDA2_BASE_ = __SDATA2_START__ + 0x8000; */ + .sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >sdram + .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) + /* avoid empty sdata2/sbss2 area -- __eabi would not set up r2 + * which may be important if run-time loading is used + */ + . += 1; + } >sdram + .eh_frame : { *.(eh_frame) } >sdram + + /* NOTE: if the BSP uses page tables, the correctness of + * '_etext' (and __DATA_START__) is CRUCIAL - otherwise, + * an invalid mapping may result!!! + */ + _etext = .; + PROVIDE (etext = .); + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. It would + be more correct to do this: + . = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1)); + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ + . = ALIGN(0x1000); + .data ALIGN(0x1000) : + { + /* NOTE: if the BSP uses page tables, the correctness of + * '__DATA_START__' (and _etext) is CRUCIAL - otherwise, + * an invalid mapping may result!!! + */ + PROVIDE(__DATA_START__ = ABSOLUTE(.) ); + *(.data .data.* .gnu.linkonce.d*) + KEEP (*(SORT(.rtemsrwset.*))) + SORT(CONSTRUCTORS) + } > sdram + .data1 : { *(.data1) } > sdram + PROVIDE (__EXCEPT_START__ = .); + .gcc_except_table : { + *(.gcc_except_table) + *(.gcc_except_table.*) + } > sdram + PROVIDE (__EXCEPT_END__ = .); + .got1 : { *(.got1) } > sdram + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + PROVIDE (_GOT2_START_ = .); + .got2 : { *(.got2) } > sdram + .dynamic : { *(.dynamic) } > sdram + + .ctors : + { + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } > sdram + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } > sdram + + + PROVIDE (_FIXUP_START_ = .); + .fixup : { *(.fixup) } > sdram + PROVIDE (_FIXUP_END_ = .); + PROVIDE (_GOT2_END_ = .); + PROVIDE (_GOT_START_ = .); + + .got : { *(.got) } > sdram + .got.plt : { *(.got.plt) } > sdram + + PROVIDE (_GOT_END_ = .); + + .jcr : { KEEP (*(.jcr)) } > sdram + + /* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ +/* _SDA_BASE_ = __SDATA_START__ + 0x8000; */ + .sdata : { *(.sdata*) *(.gnu.linkonce.s.*) } >sdram + _edata = .; + _gp = .; + PROVIDE (edata = .); + .sbss : + { + _clear_start = .; + PROVIDE (__sbss_start = .); + *(.dynsbss) + *(.sbss* .gnu.linkonce.sb.*) + *(.scommon) + /* avoid empty sdata/sbss area -- __eabi would not set up r13 + * which may be important if run-time loading is used + */ + . += 1; + . = ALIGN(16); + PROVIDE (__sbss_end = .); + } > sdram + .plt : { *(.plt) } > sdram + .bss : + { + PROVIDE (__bss_start = .); + *(.dynbss) + *(.bss .bss* .gnu.linkonce.b*) + *(COMMON) + . = ALIGN(16); + _end = . ; + __rtems_end = . ; + PROVIDE (end = .); + + . += _StackSize; + _fstack = .; + + WorkAreaBase = .; + + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + } > sdram + + + /DISCARD/ : + { + *(.comment) + } + + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* These must appear regardless of . */ +} diff --git a/bsps/lm32/milkymist/start/bsp_specs b/bsps/lm32/milkymist/start/bsp_specs new file mode 100644 index 0000000000..87638cc027 --- /dev/null +++ b/bsps/lm32/milkymist/start/bsp_specs @@ -0,0 +1,9 @@ +%rename endfile old_endfile +%rename startfile old_startfile + +*startfile: +%{!qrtems: %(old_startfile)} \ +%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}} + +*endfile: +%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s} diff --git a/bsps/lm32/milkymist/start/bspclean.c b/bsps/lm32/milkymist/start/bspclean.c new file mode 100644 index 0000000000..b010292d06 --- /dev/null +++ b/bsps/lm32/milkymist/start/bspclean.c @@ -0,0 +1,61 @@ +/* + * Milkymist shutdown routine + */ + +/* + * COPYRIGHT (c) 2010 Sebastien Bourdeauducq + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp.h> +#include <bsp/bootcard.h> +#include "../include/system_conf.h" + +static void reboot(void) +{ + /* Writing to CSR_SYSTEM_ID causes a system reset */ + MM_WRITE(MM_SYSTEM_ID, 1); +} + +static void icap_write(int val, unsigned int w) +{ + while (!(MM_READ(MM_ICAP) & ICAP_READY)); + if (!val) + w |= ICAP_CE|ICAP_WRITE; + MM_WRITE(MM_ICAP, w); +} + +static void reconf(void) +{ + icap_write(0, 0xffff); /* dummy word */ + icap_write(0, 0xffff); /* dummy word */ + icap_write(0, 0xffff); /* dummy word */ + icap_write(0, 0xffff); /* dummy word */ + icap_write(1, 0xaa99); /* sync word part 1 */ + icap_write(1, 0x5566); /* sync word part 2 */ + icap_write(1, 0x30a1); /* write to command register */ + icap_write(1, 0x0000); /* null command */ + icap_write(1, 0x30a1); /* write to command register */ + icap_write(1, 0x000e); /* reboot command */ + icap_write(1, 0x2000); /* NOP */ + icap_write(1, 0x2000); /* NOP */ + icap_write(1, 0x2000); /* NOP */ + icap_write(1, 0x2000); /* NOP */ + icap_write(0, 0x1111); /* NULL */ + icap_write(0, 0xffff); /* dummy word */ +} + +void bsp_fatal_extension( + rtems_fatal_source source, + bool always_set_to_false, + rtems_fatal_code error +) +{ + if (source == RTEMS_FATAL_SOURCE_EXIT && error) + reconf(); + else + reboot(); +} diff --git a/bsps/lm32/milkymist/start/linkcmds b/bsps/lm32/milkymist/start/linkcmds new file mode 100644 index 0000000000..9c38414238 --- /dev/null +++ b/bsps/lm32/milkymist/start/linkcmds @@ -0,0 +1,308 @@ +OUTPUT_FORMAT("elf32-lm32", "elf32-lm32", + "elf32-lm32") +OUTPUT_ARCH(lm32) +ENTRY(start) +STARTUP(start.o) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ + +/* + * Declare some sizes. Heap is sized at whatever ram space is left. + */ +RamBase = DEFINED(RamBase) ? RamBase : 0x40000000; +RamSize = DEFINED(RamSize) ? RamSize : 128M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 92M; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x2000; + +PROVIDE (__stack = 0); +MEMORY { + sdram : ORIGIN = 0x40000000 , LENGTH = 128M +} +SECTIONS +{ + .boot : + { + KEEP (*(.boot)) + } > sdram + + /* Read-only sections, merged into text segment: */ + .interp : { *(.interp) } > sdram + .hash : { *(.hash) } > sdram + .dynsym : { *(.dynsym) } > sdram + .dynstr : { *(.dynstr) } > sdram + .gnu.version : { *(.gnu.version) } > sdram + .gnu.version_d : { *(.gnu.version_d) } > sdram + .gnu.version_r : { *(.gnu.version_r) } > sdram + .rela.text : + { *(.rela.text) *(.rela.gnu.linkonce.t*) } > sdram + .rela.data : + { *(.rela.data) *(.rela.gnu.linkonce.d*) } > sdram + .rela.rodata : + { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > sdram + .rela.got : { *(.rela.got) } > sdram + .rela.got1 : { *(.rela.got1) } > sdram + .rela.got2 : { *(.rela.got2) } > sdram + .rela.ctors : { *(.rela.ctors) } > sdram + .rela.dtors : { *(.rela.dtors) } > sdram + .rela.init : { *(.rela.init) } > sdram + .rela.fini : { *(.rela.fini) } > sdram + .rela.bss : { *(.rela.bss) } > sdram + .rela.plt : { *(.rela.plt) } > sdram + .rela.sdata : { *(.rela.sdata) } > sdram + .rela.sbss : { *(.rela.sbss) } > sdram + .rela.sdata2 : { *(.rela.sdata2) } > sdram + .rela.sbss2 : { *(.rela.sbss2) } > sdram + .rela.dyn : { *(.rela.dyn) } > sdram + + .init : { KEEP(*(.init)) } > sdram + + .text : + { + *(.text*) + + /* + * Special FreeBSD sysctl sections. + */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + } > sdram + + .fini : { _fini = .; KEEP(*(.fini)) } > sdram + + .rodata : { *(.rodata*) KEEP (*(SORT(.rtemsroset.*))) *(.gnu.linkonce.r*) } > sdram + .rodata1 : { *(.rodata1) } > sdram + .tdata : { + _TLS_Data_begin = .; + *(.tdata .tdata.* .gnu.linkonce.td.*) + _TLS_Data_end = .; + } > sdram + .tbss : { + _TLS_BSS_begin = .; + *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) + _TLS_BSS_end = .; + } > sdram + _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; + _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; + _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; + _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; + _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; + _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN(0x10000) + (. & (0x10000 - 1)); + /* Ensure the __preinit_array_start label is properly aligned. We + could instead move the label definition inside the section, but + the linker would then create the section even if it turns out to + be empty, which isn't pretty. */ + . = ALIGN(32 / 8); + PROVIDE (__preinit_array_start = .); + .preinit_array : { *(.preinit_array) } >sdram + PROVIDE (__preinit_array_end = .); + PROVIDE (__init_array_start = .); + .init_array : { *(.init_array) } >sdram + PROVIDE (__init_array_end = .); + PROVIDE (__fini_array_start = .); + .fini_array : { *(.fini_array) } >sdram + PROVIDE (__fini_array_end = .); + +/* _SDA2_BASE_ = __SDATA2_START__ + 0xe000; */ + .sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >sdram + .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) + /* avoid empty sdata2/sbss2 area -- __eabi would not set up r2 + * which may be important if run-time loading is used + */ + . += 1; + } >sdram + .eh_frame : { *.(eh_frame) } >sdram + + /* NOTE: if the BSP uses page tables, the correctness of + * '_etext' (and __DATA_START__) is CRUCIAL - otherwise, + * an invalid mapping may result!!! + */ + _etext = .; + PROVIDE (etext = .); + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. It would + be more correct to do this: + . = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1)); + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ + . = ALIGN(0x1000); + .data ALIGN(0x1000) : + { + /* NOTE: if the BSP uses page tables, the correctness of + * '__DATA_START__' (and _etext) is CRUCIAL - otherwise, + * an invalid mapping may result!!! + */ + PROVIDE(__DATA_START__ = ABSOLUTE(.) ); + *(.data .data.* .gnu.linkonce.d*) + KEEP (*(SORT(.rtemsrwset.*))) + SORT(CONSTRUCTORS) + } > sdram + .data1 : { *(.data1) } > sdram + PROVIDE (__EXCEPT_START__ = .); + .gcc_except_table : { + *(.gcc_except_table) + *(.gcc_except_table.*) + } > sdram + PROVIDE (__EXCEPT_END__ = .); + .got1 : { *(.got1) } > sdram + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + PROVIDE (_GOT2_START_ = .); + .got2 : { *(.got2) } > sdram + .dynamic : { *(.dynamic) } > sdram + + .ctors : + { + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } > sdram + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } > sdram + + + PROVIDE (_FIXUP_START_ = .); + .fixup : { *(.fixup) } > sdram + PROVIDE (_FIXUP_END_ = .); + PROVIDE (_GOT2_END_ = .); + PROVIDE (_GOT_START_ = .); + + .got : { *(.got) } > sdram + .got.plt : { *(.got.plt) } > sdram + + PROVIDE (_GOT_END_ = .); + + .jcr : { KEEP (*(.jcr)) } > sdram + + /* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ +/* _SDA_BASE_ = __SDATA_START__ + 0xe000; */ + .sdata : { *(.sdata*) *(.gnu.linkonce.s.*) } >sdram + _edata = .; + _gp = .; + PROVIDE (edata = .); + .sbss : + { + _clear_start = .; + PROVIDE (__sbss_start = .); + *(.dynsbss) + *(.sbss* .gnu.linkonce.sb.*) + *(.scommon) + /* avoid empty sdata/sbss area -- __eabi would not set up r13 + * which may be important if run-time loading is used + */ + . += 1; + . = ALIGN(16); + PROVIDE (__sbss_end = .); + } > sdram + .plt : { *(.plt) } > sdram + .bss : + { + PROVIDE (__bss_start = .); + *(.dynbss) + *(.bss .bss* .gnu.linkonce.b*) + *(COMMON) + . = ALIGN(16); + _end = . ; + __rtems_end = . ; + PROVIDE (end = .); + + . += _StackSize; + _fstack = .; + + WorkAreaBase = .; + + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + } > sdram + + + /DISCARD/ : + { + *(.comment) + } + + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* These must appear regardless of . */ +} diff --git a/bsps/lm32/shared/start/bspreset.c b/bsps/lm32/shared/start/bspreset.c new file mode 100644 index 0000000000..0c41dc6f41 --- /dev/null +++ b/bsps/lm32/shared/start/bspreset.c @@ -0,0 +1,28 @@ +/** + * @file + * + * Default bsp_reset() for LM32 BSPs which can run on the GDB simulator + */ + +/* + * COPYRIGHT (c) 1989-2015. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp.h> +#include <bsp/bootcard.h> + +void bsp_reset( void ) +{ + /* + * If on the GDB simulator, trap to it and exit. + */ + #if LM32_ON_SIMULATOR + __asm__ volatile ( "mvi r8, 1" ); /* 1 is SYS_exit */ + __asm__ volatile ( "scall" ); + #endif +} diff --git a/bsps/lm32/shared/start/bspstart.c b/bsps/lm32/shared/start/bspstart.c new file mode 100644 index 0000000000..6a419e869e --- /dev/null +++ b/bsps/lm32/shared/start/bspstart.c @@ -0,0 +1,35 @@ +/* + * This routine starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before this routine is invoked. + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + * + * Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008, + * Micro-Research Finland Oy + */ + +#include <string.h> + +#include <bsp.h> +#include <bsp/bootcard.h> +#include "../include/system_conf.h" +#include "../console/uart.h" + +/* + * bsp_start + * + * This routine does the bulk of the system initialization. + */ + +void bsp_start(void) +{ + /* Setup console baud rate */ + BSP_uart_init(UART_BAUD_RATE); +} |