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-rw-r--r--examples/standalone/riscv.lds41
-rw-r--r--examples/standalone/stubs.c12
2 files changed, 53 insertions, 0 deletions
diff --git a/examples/standalone/riscv.lds b/examples/standalone/riscv.lds
new file mode 100644
index 0000000..7d8c482
--- /dev/null
+++ b/examples/standalone/riscv.lds
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2017 Andes Technology Corporation
+ * Rick Chen, Andes Technology Corporation <rick@andestech.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+OUTPUT_ARCH(riscv)
+ENTRY(_start)
+SECTIONS
+{
+ . = ALIGN(4);
+ .text :
+ {
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .data : {
+ __global_pointer$ = . + 0x800;
+ *(.data)
+ }
+
+ . = ALIGN(4);
+
+ .got : {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ }
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ __bss_end = .;
+
+ . = ALIGN(4);
+ .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
+
+ _end = .;
+}
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index 9c7a8c0..fadde66 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -172,6 +172,18 @@ gd_t *global_data;
" lwi $r16, [$r16 + (%1)]\n" \
" jr $r16\n" \
: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "$r16");
+#elif defined(CONFIG_RISCV)
+/*
+ * t7 holds the pointer to the global_data. gp is call clobbered.
+ */
+#define EXPORT_FUNC(f, a, x, ...) \
+ asm volatile ( \
+" .globl " #x "\n" \
+#x ":\n" \
+" lw x19, %0(gp)\n" \
+" lw x19, %1(x19)\n" \
+" jr x19\n" \
+ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "x19");
#elif defined(CONFIG_ARC)
/*
* r25 holds the pointer to the global_data. r10 is call clobbered.