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authorKimplul <kimi.h.kuparinen@gmail.com>2022-04-29 17:38:41 +0300
committerKimplul <kimi.h.kuparinen@gmail.com>2022-04-29 17:38:41 +0300
commit9273c16434316a8ab60dc78ee65a03e68031203a (patch)
tree41754de4b7c459fc07e20189948c94a0e2cab966 /arch/riscv64/gen/asm-offsets.c
parent105f3d0dab75f669d1fc404c06b73289b343591c (diff)
downloadkmi-9273c16434316a8ab60dc78ee65a03e68031203a.tar.gz
kmi-9273c16434316a8ab60dc78ee65a03e68031203a.zip
continue building base for irq handling
Diffstat (limited to 'arch/riscv64/gen/asm-offsets.c')
-rw-r--r--arch/riscv64/gen/asm-offsets.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/riscv64/gen/asm-offsets.c b/arch/riscv64/gen/asm-offsets.c
new file mode 100644
index 0000000..d78e0ec
--- /dev/null
+++ b/arch/riscv64/gen/asm-offsets.c
@@ -0,0 +1,44 @@
+#include <apos/utils.h>
+#include <regs.h>
+
+/* largely based on linux */
+#define DEFINE(sym, val) \
+ __asm__ volatile("\n-> " #sym " %0 " #val "\n" ::"i"(val))
+#define OFFSETOF(m, s) DEFINE(offsetof_##m, offsetof(s, m))
+#define SIZEOF(n, s) DEFINE(sizeof_##n, sizeof(s))
+
+void asm_offsets()
+{
+ OFFSETOF(ra, struct riscv_regs);
+ OFFSETOF(sp, struct riscv_regs);
+ OFFSETOF(tp, struct riscv_regs);
+ OFFSETOF(gp, struct riscv_regs);
+ OFFSETOF(t0, struct riscv_regs);
+ OFFSETOF(t1, struct riscv_regs);
+ OFFSETOF(t2, struct riscv_regs);
+ OFFSETOF(s0, struct riscv_regs);
+ OFFSETOF(s1, struct riscv_regs);
+ OFFSETOF(a0, struct riscv_regs);
+ OFFSETOF(a1, struct riscv_regs);
+ OFFSETOF(a2, struct riscv_regs);
+ OFFSETOF(a3, struct riscv_regs);
+ OFFSETOF(a4, struct riscv_regs);
+ OFFSETOF(a5, struct riscv_regs);
+ OFFSETOF(a6, struct riscv_regs);
+ OFFSETOF(a7, struct riscv_regs);
+ OFFSETOF(s2, struct riscv_regs);
+ OFFSETOF(s3, struct riscv_regs);
+ OFFSETOF(s4, struct riscv_regs);
+ OFFSETOF(s5, struct riscv_regs);
+ OFFSETOF(s6, struct riscv_regs);
+ OFFSETOF(s7, struct riscv_regs);
+ OFFSETOF(s8, struct riscv_regs);
+ OFFSETOF(s9, struct riscv_regs);
+ OFFSETOF(s10, struct riscv_regs);
+ OFFSETOF(s11, struct riscv_regs);
+ OFFSETOF(t3, struct riscv_regs);
+ OFFSETOF(t4, struct riscv_regs);
+ OFFSETOF(t5, struct riscv_regs);
+ OFFSETOF(t6, struct riscv_regs);
+ SIZEOF(registers, struct riscv_regs);
+}