diff options
| author | Daniel Hellstrom <daniel@gaisler.com> | 2008-03-28 09:47:00 +0100 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2008-04-08 07:58:32 +0000 |
| commit | c2f02da21a3f37f0878554eebc785e04fdc4e128 (patch) | |
| tree | 169e423067d8298e0568ff7b13c5419185008b38 /examples | |
| parent | aeff6d503b6006573d5c6b04fc658a64bebee5fa (diff) | |
SPARC: Added generic support for SPARC architecture.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/Makefile | 3 | ||||
| -rw-r--r-- | examples/sparc.lds | 61 | ||||
| -rw-r--r-- | examples/stubs.c | 16 |
3 files changed, 80 insertions, 0 deletions
diff --git a/examples/Makefile b/examples/Makefile index c5d629b68ad..66b354daaf6 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -69,6 +69,9 @@ ifeq ($(ARCH),sh) LOAD_ADDR = 0x8C000000 endif +ifeq ($(ARCH),sparc) +LOAD_ADDR = 0x00000000 -L $(gcclibdir) -T sparc.lds +endif include $(TOPDIR)/config.mk diff --git a/examples/sparc.lds b/examples/sparc.lds new file mode 100644 index 00000000000..75925449ed4 --- /dev/null +++ b/examples/sparc.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-sparc", "elf32-sparc", "elf32-sparc") +OUTPUT_ARCH(sparc) +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 = .; + _end = .; +} diff --git a/examples/stubs.c b/examples/stubs.c index b9dbcf9065b..ec5353216b5 100644 --- a/examples/stubs.c +++ b/examples/stubs.c @@ -167,6 +167,22 @@ gd_t *global_data; " nop\n" \ " nop\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1"); +#elif defined(CONFIG_SPARC) +/* + * g7 holds the pointer to the global_data. g1 is call clobbered. + */ +#define EXPORT_FUNC(x) \ + asm volatile( \ +" .globl\t" #x "\n" \ +#x ":\n" \ +" set %0, %%g1\n" \ +" or %%g1, %%g7, %%g1\n" \ +" ld [%%g1], %%g1\n" \ +" ld [%%g1 + %1], %%g1\n" \ +" call %%g1\n" \ +" nop\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "g1" ); + #else #error stubs definition missing for this architecture #endif |