From 3553493d8b4e402a737b80b04fab06f6e81bcb69 Mon Sep 17 00:00:00 2001 From: Stefan Kristiansson Date: Fri, 18 Nov 2011 19:21:35 +0000 Subject: openrisc: Add support for standalone programs Signed-off-by: Stefan Kristiansson --- examples/standalone/stubs.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'examples') diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index a6add6a..15e9afc 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -181,6 +181,20 @@ gd_t *global_data; " lwi $r16, [$r16 + (%1)]\n" \ " jr $r16\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16"); +#elif defined(CONFIG_OPENRISC) +/* + * r10 holds the pointer to the global_data, r13 is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" l.lwz r13, %0(r10)\n" \ +" l.lwz r13, %1(r13)\n" \ +" l.jr r13\n" \ +" l.nop\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r13"); #else /*" addi $sp, $sp, -24\n" \ " br $r16\n" \*/ -- cgit v1.1