diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/Makefile | 4 | ||||
| -rw-r--r-- | examples/nios.lds | 61 | ||||
| -rw-r--r-- | examples/stubs.c | 17 |
3 files changed, 82 insertions, 0 deletions
diff --git a/examples/Makefile b/examples/Makefile index febc501..90d2655 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -37,6 +37,10 @@ ifeq ($(ARCH),mips) LOAD_ADDR = 0x80200000 -T mips.lds endif +ifeq ($(ARCH),nios) +LOAD_ADDR = 0x01000000 -L $(gcclibdir)/m32 -T nios.lds +endif + include $(TOPDIR)/config.mk SREC = hello_world.srec diff --git a/examples/nios.lds b/examples/nios.lds new file mode 100644 index 0000000..105999f --- /dev/null +++ b/examples/nios.lds @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2003, Psyent Corporation <www.psyent.com> + * Scott McNutt <smcnutt@psyent.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +OUTPUT_FORMAT("elf32-nios") +OUTPUT_ARCH(nios) +ENTRY(_start) + +SECTIONS +{ + .text : + { + *(.text) + } + __text_end = .; + + . = ALIGN(4); + .rodata : + { + *(.rodata) + } + __rodata_end = .; + + . = ALIGN(4); + .data : + { + *(.data) + } + . = ALIGN(4); + __data_end = .; + + __bss_start = .; + . = ALIGN(4); + .bss : + { + *(.bss) + } + . = ALIGN(4); + __bss_end = .; +} + diff --git a/examples/stubs.c b/examples/stubs.c index 9c4c51b..6ca6d78 100644 --- a/examples/stubs.c +++ b/examples/stubs.c @@ -61,6 +61,23 @@ gd_t *global_data; " lw $25, %1($25)\n" \ " jr $25\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "t9"); +#elif defined(CONFIG_NIOS) +/* + * %g7 holds the pointer to the global_data. %g0 is call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" pfx %%hi(%0)\n" \ +" movi %%g0, %%lo(%0)\n" \ +" add %%g0, %%g7\n" \ +" ld %%g0, [%%g0]\n" \ +" pfx %1\n" \ +" ld %%g0, [%%g0]\n" \ +" jmp %%g0\n" \ +" nop \n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0"); #else #error stubs definition missing for this architecture #endif |