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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 10:35:35 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 13:52:14 +0200
commit99648958668d3a33ee57974479b36201fe303f34 (patch)
tree6f27ea790e2823c6156e71219a4f54680263fac6 /bsps/m32c
parentbsps: Move start files to bsps (diff)
downloadrtems-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/m32c')
-rw-r--r--bsps/m32c/m32cbsp/start/bsp_specs9
-rw-r--r--bsps/m32c/m32cbsp/start/bspstart.c24
-rw-r--r--bsps/m32c/m32cbsp/start/crtn.S58
-rw-r--r--bsps/m32c/m32cbsp/start/linkcmds216
4 files changed, 307 insertions, 0 deletions
diff --git a/bsps/m32c/m32cbsp/start/bsp_specs b/bsps/m32c/m32cbsp/start/bsp_specs
new file mode 100644
index 0000000000..afa9f6badb
--- /dev/null
+++ b/bsps/m32c/m32cbsp/start/bsp_specs
@@ -0,0 +1,9 @@
+%rename endfile old_endfile
+%rename startfile old_startfile
+
+*startfile:
+%{!qrtems: %(old_startfile)} \
+%{!nostdlib: %{qrtems: crtbegin.o%s}}
+
+*endfile:
+%{!qrtems: %(old_endfile)} %{!nostdlib: %{qrtems: crtend.o%s}}
diff --git a/bsps/m32c/m32cbsp/start/bspstart.c b/bsps/m32c/m32cbsp/start/bspstart.c
new file mode 100644
index 0000000000..7fdd598ccf
--- /dev/null
+++ b/bsps/m32c/m32cbsp/start/bspstart.c
@@ -0,0 +1,24 @@
+/*
+ * COPYRIGHT (c) 1989-2008.
+ * 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>
+
+extern void sys_sbrk(int);
+
+/*
+ * This routine would usually do the bulk of the system initialization.
+ * But if a BSP doesn't need to do anything, it can use this version.
+ */
+
+void bsp_start( void )
+{
+ /* Tell the simulator not to test for heap/stack collision */
+ sys_sbrk(0);
+}
diff --git a/bsps/m32c/m32cbsp/start/crtn.S b/bsps/m32c/m32cbsp/start/crtn.S
new file mode 100644
index 0000000000..6004f28e05
--- /dev/null
+++ b/bsps/m32c/m32cbsp/start/crtn.S
@@ -0,0 +1,58 @@
+/*
+
+Copyright (c) 2005 Red Hat Incorporated.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ The name of Red Hat Incorporated may not be used to endorse
+ or promote products derived from this software without specific
+ prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+
+#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
+#define A16
+#define A(n,w) n
+#define W w
+#else
+#define A24
+#define A(n,w) w
+#define W l
+#endif
+
+ .section .init,"ax",@progbits
+ jsr.a _m32c_run_preinit_array
+ jsr.a _m32c_run_init_array
+ exitd
+ .global __m32c_init_end
+__m32c_init_end:
+
+ .section .fini,"ax",@progbits
+
+ exitd
+ .global __m32c_fini_end
+__m32c_fini_end:
+
+ .text
+
diff --git a/bsps/m32c/m32cbsp/start/linkcmds b/bsps/m32c/m32cbsp/start/linkcmds
new file mode 100644
index 0000000000..48cc27e7ae
--- /dev/null
+++ b/bsps/m32c/m32cbsp/start/linkcmds
@@ -0,0 +1,216 @@
+/*
+ * Declare some sizes.
+ */
+_RamBase = DEFINED(_RamBase) ? _RamBase : 0x200000;
+_RamSize = DEFINED(_RamSize) ? _RamSize : 0x800000;
+_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x0;
+_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
+
+
+/* Default linker script, for normal executables */
+OUTPUT_FORMAT("elf32-m32c", "elf32-m32c",
+ "elf32-m32c")
+OUTPUT_ARCH(m32c)
+ENTRY(_start)
+STARTUP(start.o)
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+MEMORY {
+ RAM (w) : ORIGIN = 0x200000, LENGTH = 0x800000
+ VEC (r) : ORIGIN = 0xffffdc, LENGTH = 32
+ RESETVEC (r) : ORIGIN = 0xfffffc, LENGTH = 4
+}
+SECTIONS
+{
+ /* There are three cases we care about: First, RW data that must be
+ in the low 64k. This will always be copied from ROM. Second, RO
+ data that must be in the low 64k. This may be copied from ROM if
+ the ROM is above 64k. Third, anything that does not need to be
+ in the first 64k. Chips normally only have two memory regions;
+ low ram and either high or low rom. We map the low rom needs
+ into one of the actual regions. */
+
+ /* .text goes first so the rom image of ram data will follow it. */
+ .text :
+ {
+ *(.text .stub .text.* .gnu.linkonce.t.*)
+ KEEP (*(.text.*personality*))
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ *(.interp .hash .dynsym .dynstr .gnu.version*)
+ PROVIDE (__etext = .);
+ PROVIDE (_etext = .);
+ PROVIDE (etext = .);
+ . = ALIGN(2);
+ } > RAM =0
+
+ /* rodata will either be part of data, or will be in low rom. So we
+ might be spanning it, or we might not. This lets us include it
+ in our calculations when appropriate. */
+
+ .rodata : {
+ . = ALIGN(2);
+ *(.plt)
+ KEEP (*(.init))
+ KEEP (*(.fini))
+ *(.rodata .rodata.* .gnu.linkonce.r.*)
+ KEEP (*(SORT(.rtemsroset.*)))
+ *(.rodata1)
+ *(.eh_frame_hdr)
+ KEEP (*(.eh_frame))
+ KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
+ . = ALIGN(2);
+ PROVIDE(__romdatastart = .); /* IF_ROROM */
+ } > RAM
+
+ .tdata : {
+ __TLS_Data_begin = .;
+ *(.tdata .tdata.* .gnu.linkonce.td.*)
+ __TLS_Data_end = .;
+ } > RAM
+ .tbss : {
+ __TLS_BSS_begin = .;
+ *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
+ __TLS_BSS_end = .;
+ } > RAM
+ __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));
+
+ .data : {
+ . = ALIGN(32 / 8);
+ PROVIDE (__datastart = .); /* IF_ROROM */
+ PROVIDE (__preinit_array_start = .);
+ KEEP (*(.preinit_array))
+ PROVIDE (__preinit_array_end = .);
+ PROVIDE (__init_array_start = .);
+ KEEP (*(.init_array))
+ PROVIDE (__init_array_end = .);
+ PROVIDE (__fini_array_start = .);
+ KEEP (*(.fini_array))
+ PROVIDE (__fini_array_end = .);
+
+ /* 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))
+
+ KEEP (*crtbegin*.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+
+ KEEP (*(.jcr))
+ *(.data.rel.ro.local) *(.data.rel.ro*)
+ *(.dynamic)
+
+ *(.data .data.* .gnu.linkonce.d.*)
+ KEEP (*(SORT(.rtemsrwset.*)))
+ KEEP (*(.gnu.linkonce.d.*personality*))
+ SORT(CONSTRUCTORS)
+ *(.data1)
+ *(.got.plt) *(.got)
+
+ . = ALIGN(2);
+ _edata = .;
+ PROVIDE (edata = .);
+ PROVIDE (__dataend = .);
+ } > RAM
+
+ /* Note that __romdatacopysize may be ZERO for the simulator, which
+ knows how to intialize RAM directly. It should ONLY be used for
+ copying data from ROM to RAM; if you need to know the size of the
+ data section, subtract the end symbol from the start symbol. */
+ /* Note that crt0 assumes this is even; all the start/stop symbols
+ are also assumed word-aligned. */
+ PROVIDE (__romdatacopysize = 0);
+
+ .bss : {
+ . = ALIGN(2);
+ PROVIDE (__bssstart = .);
+ *(.dynbss)
+ *(.bss .bss.* .gnu.linkonce.b.*)
+ *(COMMON)
+ . = ALIGN(2);
+ PROVIDE (__bssend = .);
+ _end = .;
+ PROVIDE (end = .);
+ } > RAM
+ PROVIDE (__bsssize = 0);
+ . = ALIGN(16);
+
+ . += _StackSize;
+ PROVIDE (__stack = .);
+ PROVIDE (_WorkAreaBase = .);
+ . = 0xa00000;
+ PROVIDE (_WorkAreaEnd = .);
+ PROVIDE (_WorkAreaSize = _WorkAreaEnd - _WorkAreaBase);
+
+/*
+ .stack (0x200000 + 0x800000 - 2) :
+ {
+ PROVIDE (__stack = .);
+ *(.stack)
+ }
+*/
+
+ .vec : {
+ *(.vec)
+ } > VEC
+ .resetvec : {
+ *(.resetvec)
+ } > RESETVEC
+
+ /* The rest are all not normally part of the runtime image. */
+
+ /* 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 .gnu.linkonce.wi.*) }
+ .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) }
+ /DISCARD/ : { *(.note.GNU-stack) }
+}