diff options
Diffstat (limited to 'arch/cris/kernel')
| -rw-r--r-- | arch/cris/kernel/asm-offsets.c | 64 | ||||
| -rw-r--r-- | arch/cris/kernel/vmlinux.lds.S | 151 |
2 files changed, 215 insertions, 0 deletions
diff --git a/arch/cris/kernel/asm-offsets.c b/arch/cris/kernel/asm-offsets.c new file mode 100644 index 00000000000..ddd6fbbe75d --- /dev/null +++ b/arch/cris/kernel/asm-offsets.c @@ -0,0 +1,64 @@ +#include <linux/sched.h> +#include <asm/thread_info.h> +#include <linux/autoconf.h> + +/* + * Generate definitions needed by assembly language modules. + * This code generates raw asm output which is post-processed to extract + * and format the required data. + */ + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +#define BLANK() asm volatile("\n->" : : ) + +#if !defined(CONFIG_ETRAX_ARCH_V10) && !defined(CONFIG_ETRAX_ARCH_V32) +#error One of ARCH v10 and ARCH v32 must be true! +#endif + +int main(void) +{ +#define ENTRY(entry) DEFINE(PT_ ## entry, offsetof(struct pt_regs, entry)) + ENTRY(orig_r10); + ENTRY(r13); + ENTRY(r12); + ENTRY(r11); + ENTRY(r10); + ENTRY(r9); +#ifdef CONFIG_ETRAX_ARCH_V32 + ENTRY(acr); + ENTRY(srs); +#endif + ENTRY(mof); +#ifdef CONFIG_ETRAX_ARCH_V10 + ENTRY(dccr); +#else + ENTRY(ccs); +#endif + ENTRY(srp); + BLANK(); +#undef ENTRY +#define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry)) + ENTRY(task); + ENTRY(flags); + ENTRY(preempt_count); + BLANK(); +#undef ENTRY +#define ENTRY(entry) DEFINE(THREAD_ ## entry, offsetof(struct thread_struct, entry)) + ENTRY(ksp); + ENTRY(usp); +#ifdef CONFIG_ETRAX_ARCH_V10 + ENTRY(dccr); +#else + ENTRY(ccs); +#endif + BLANK(); +#undef ENTRY +#define ENTRY(entry) DEFINE(TASK_ ## entry, offsetof(struct task_struct, entry)) + ENTRY(pid); + BLANK(); + DEFINE(LCLONE_VM, CLONE_VM); + DEFINE(LCLONE_UNTRACED, CLONE_UNTRACED); + return 0; +} diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S new file mode 100644 index 00000000000..0d2adfc794d --- /dev/null +++ b/arch/cris/kernel/vmlinux.lds.S @@ -0,0 +1,151 @@ +/* ld script to make the Linux/CRIS kernel + * Authors: Bjorn Wesen (bjornw@axis.com) + * + * It is VERY DANGEROUS to fiddle around with the symbols in this + * script. It is for example quite vital that all generated sections + * that are used are actually named here, otherwise the linker will + * put them at the end, where the init stuff is which is FREED after + * the kernel has booted. + */ + +#include <linux/autoconf.h> +#include <asm-generic/vmlinux.lds.h> +#include <asm/page.h> + +#ifdef CONFIG_ETRAX_VMEM_SIZE +#define __CONFIG_ETRAX_VMEM_SIZE CONFIG_ETRAX_VMEM_SIZE +#else +#define __CONFIG_ETRAX_VMEM_SIZE 0 +#endif + + +jiffies = jiffies_64; +SECTIONS +{ + . = DRAM_VIRTUAL_BASE; + dram_start = .; +#ifdef CONFIG_ETRAX_ARCH_V10 + ibr_start = .; +#else + ebp_start = .; + /* The boot section is only necessary until the VCS top */ + /* level testbench includes both flash and DRAM. */ + .boot : { *(.boot) } +#endif + + /* see head.S and pages reserved at the start */ + . = DRAM_VIRTUAL_BASE + 0x4000; + + _text = .; /* Text and read-only data. */ + text_start = .; /* Lots of aliases. */ + _stext = .; + __stext = .; + .text : { + TEXT_TEXT + SCHED_TEXT + LOCK_TEXT + *(.fixup) + *(.text.__*) + } + + _etext = . ; /* End of text section. */ + __etext = .; + + . = ALIGN(4); /* Exception table. */ + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + RODATA + + . = ALIGN (4); + ___data_start = . ; + __Sdata = . ; + .data : { /* Data */ + DATA_DATA + } + __edata = . ; /* End of data section. */ + _edata = . ; + + . = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned. */ + .data.init_task : { *(.data.init_task) } + + . = ALIGN(PAGE_SIZE); /* Init code and data. */ + __init_begin = .; + .init.text : { + _sinittext = .; + INIT_TEXT + _einittext = .; + } + .init.data : { INIT_DATA } + . = ALIGN(16); + __setup_start = .; + .init.setup : { *(.init.setup) } + __setup_end = .; +#ifdef CONFIG_ETRAX_ARCH_V32 + __start___param = .; + __param : { *(__param) } + __stop___param = .; +#endif + .initcall.init : { + __initcall_start = .; + INITCALLS + __initcall_end = .; + } + + .con_initcall.init : { + __con_initcall_start = .; + *(.con_initcall.init) + __con_initcall_end = .; + } + SECURITY_INIT + +#ifdef CONFIG_ETRAX_ARCH_V10 +#ifdef CONFIG_BLK_DEV_INITRD + .init.ramfs : { + __initramfs_start = .; + *(.init.ramfs) + __initramfs_end = .; + } +#endif +#endif + __vmlinux_end = .; /* Last address of the physical file. */ +#ifdef CONFIG_ETRAX_ARCH_V32 + PERCPU(PAGE_SIZE) + + .init.ramfs : { + __initramfs_start = .; + *(.init.ramfs) + __initramfs_end = .; + } +#endif + + /* + * We fill to the next page, so we can discard all init + * pages without needing to consider what payload might be + * appended to the kernel image. + */ + . = ALIGN(PAGE_SIZE); + + __init_end = .; + + __data_end = . ; /* Move to _edata ? */ + __bss_start = .; /* BSS. */ + .bss : { + *(COMMON) + *(.bss) + } + + . = ALIGN (0x20); + _end = .; + __end = .; + + /* Sections to be discarded */ + /DISCARD/ : { + EXIT_TEXT + EXIT_DATA + *(.exitcall.exit) + } + + dram_end = dram_start + (CONFIG_ETRAX_DRAM_SIZE - __CONFIG_ETRAX_VMEM_SIZE)*1024*1024; +} |