diff options
| author | Lukas Auer <lukas.auer@aisec.fraunhofer.de> | 2019-01-04 01:37:33 +0100 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2019-01-15 09:36:31 +0800 |
| commit | 7eb792970e3af4aa0c99a972411f239b0fc03a63 (patch) | |
| tree | 716477d1f158c8900487df3e52f77c5ac6fb2231 /examples | |
| parent | cbb860f2c89c05c4c1d571f61bb76650db489d7d (diff) | |
riscv: support standalone applications on RV64I systems
Add an implementation of EXPORT_FUNC() for RV64I systems to support them
in standalone applications.
Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/standalone/stubs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index f37d209da6..0827bde35e 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -176,6 +176,16 @@ gd_t *global_data; /* * gp holds the pointer to the global_data. t0 is call clobbered. */ +#ifdef CONFIG_ARCH_RV64I +#define EXPORT_FUNC(f, a, x, ...) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" ld t0, %0(gp)\n" \ +" ld t0, %1(t0)\n" \ +" jr t0\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t0"); +#else #define EXPORT_FUNC(f, a, x, ...) \ asm volatile ( \ " .globl " #x "\n" \ @@ -184,6 +194,7 @@ gd_t *global_data; " lw t0, %1(t0)\n" \ " jr t0\n" \ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t0"); +#endif #elif defined(CONFIG_ARC) /* * r25 holds the pointer to the global_data. r10 is call clobbered. |