From c278400c52c14203894c5dc0d63cf385239d8329 Mon Sep 17 00:00:00 2001 From: Aurelien Jacquiot Date: Tue, 4 Oct 2011 10:54:51 -0400 Subject: C6X: build infrastructure Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter Signed-off-by: Aurelien Jacquiot Signed-off-by: Mark Salter Acked-by: Arnd Bergmann --- arch/c6x/kernel/Makefile | 12 ++++ arch/c6x/kernel/vmlinux.lds.S | 162 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 174 insertions(+) create mode 100644 arch/c6x/kernel/Makefile create mode 100644 arch/c6x/kernel/vmlinux.lds.S (limited to 'arch/c6x/kernel') diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile new file mode 100644 index 000000000000..580a515a9443 --- /dev/null +++ b/arch/c6x/kernel/Makefile @@ -0,0 +1,12 @@ +# +# Makefile for arch/c6x/kernel/ +# + +extra-y := head.o vmlinux.lds + +obj-y := process.o traps.o irq.o signal.o ptrace.o +obj-y += setup.o sys_c6x.o time.o devicetree.o +obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o +obj-y += soc.o dma.o + +obj-$(CONFIG_MODULES) += module.o diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S new file mode 100644 index 000000000000..1d81c4c129ec --- /dev/null +++ b/arch/c6x/kernel/vmlinux.lds.S @@ -0,0 +1,162 @@ +/* + * ld script for the c6x kernel + * + * Copyright (C) 2010, 2011 Texas Instruments Incorporated + * Mark Salter + */ +#include +#include +#include + +ENTRY(_c_int00) + +#if defined(CONFIG_CPU_BIG_ENDIAN) +jiffies = jiffies_64 + 4; +#else +jiffies = jiffies_64; +#endif + +#define READONLY_SEGMENT_START \ + . = PAGE_OFFSET; +#define READWRITE_SEGMENT_START \ + . = ALIGN(128); \ + _data_lma = .; + +SECTIONS +{ + /* + * Start kernel read only segment + */ + READONLY_SEGMENT_START + + .vectors : + { + _vectors_start = .; + *(.vectors) + . = ALIGN(0x400); + _vectors_end = .; + } + + . = ALIGN(0x1000); + .cmdline : + { + *(.cmdline) + } + + /* + * This section contains data which may be shared with other + * cores. It needs to be a fixed offset from PAGE_OFFSET + * regardless of kernel configuration. + */ + .virtio_ipc_dev : + { + *(.virtio_ipc_dev) + } + + . = ALIGN(PAGE_SIZE); + .init : + { + _stext = .; + _sinittext = .; + HEAD_TEXT + INIT_TEXT + _einittext = .; + } + + __init_begin = _stext; + INIT_DATA_SECTION(16) + + PERCPU_SECTION(128) + + . = ALIGN(PAGE_SIZE); + __init_end = .; + + .text : + { + _text = .; + TEXT_TEXT + SCHED_TEXT + LOCK_TEXT + IRQENTRY_TEXT + KPROBES_TEXT + *(.fixup) + *(.gnu.warning) + } + + EXCEPTION_TABLE(16) + NOTES + + RO_DATA_SECTION(PAGE_SIZE) + .const : + { + *(.const .const.* .gnu.linkonce.r.*) + *(.switch) + } + + . = ALIGN (8) ; + __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) + { + _fdt_start = . ; /* place for fdt blob */ + *(__fdt_blob) ; /* Any link-placed DTB */ + BYTE(0); /* section always has contents */ + . = _fdt_start + 0x4000; /* Pad up to 16kbyte */ + _fdt_end = . ; + } + + _etext = .; + + /* + * Start kernel read-write segment. + */ + READWRITE_SEGMENT_START + _sdata = .; + + .fardata : AT(ADDR(.fardata) - LOAD_OFFSET) + { + INIT_TASK_DATA(THREAD_SIZE) + NOSAVE_DATA + PAGE_ALIGNED_DATA(PAGE_SIZE) + CACHELINE_ALIGNED_DATA(128) + READ_MOSTLY_DATA(128) + DATA_DATA + CONSTRUCTORS + *(.data1) + *(.fardata .fardata.*) + *(.data.debug_bpt) + } + + .neardata ALIGN(8) : AT(ADDR(.neardata) - LOAD_OFFSET) + { + *(.neardata2 .neardata2.* .gnu.linkonce.s2.*) + *(.neardata .neardata.* .gnu.linkonce.s.*) + . = ALIGN(8); + } + + _edata = .; + + __bss_start = .; + SBSS(8) + BSS(8) + .far : + { + . = ALIGN(8); + *(.dynfar) + *(.far .far.* .gnu.linkonce.b.*) + . = ALIGN(8); + } + __bss_stop = .; + + _end = .; + + DWARF_DEBUG + + /DISCARD/ : + { + EXIT_TEXT + EXIT_DATA + EXIT_CALL + *(.discard) + *(.discard.*) + *(.interp) + } +} -- cgit v1.2.3