some kmx alleviations

4 files changed, 49 insertions, 35 deletions

diff --git a/include/arch/proc.h b/include/arch/proc.h
index 341a2f4..345f812 100644
--- a/include/arch/proc.h
+++ b/include/arch/proc.h
@@ -112,8 +112,9 @@ void adjust_syscall(struct tcb *t);
  *
  * @param t Thread that \c init is attached to.
  * @param fdt Pointer to FDT that is passed to \c init.
+ * @param initrd Pointer to initrd that is passed to \c init.
  */
-__noreturn void run_init(struct tcb *t, void *fdt);
+__noreturn void run_init(struct tcb *t, void *fdt, void *initrd);
 
 /**
  * Return to userspace fast.
diff --git a/include/kmi/syscalls.h b/include/kmi/syscalls.h
index 79cd692..1de4fb2 100644
--- a/include/kmi/syscalls.h
+++ b/include/kmi/syscalls.h
@@ -9,6 +9,13 @@
  * Table of system calls.
  */
 
+/* pass VM_X etc. to userspace */
+#if defined(riscv64)
+#include "../../arch/riscv64/include/vmem.h"
+#elif defined(riscv32)
+#include "../../arch/riscv32/include/vmem.h"
+#endif
+
 /** enum for now, possibly macros in the future once I get an approximate idea of
  * which syscalls are necessary etc. */
 enum {
@@ -146,4 +153,38 @@ enum {
 /* function declarations should be somewhere else, this file could be used in
  * userspace applications as well */
 
+/**
+ * Syscall argument type.
+ *
+ * \todo: Should this be arch specific? should be the size of an integer
+ * register.
+ */
+typedef long sys_arg_t;
+
+/**
+ * Return structure of syscall.
+ * \note Field names are generic, and can be used for whatever,
+ * check documentation of whatever you're doing.
+ * @todo should this be placed into syscalls.h?
+ */
+struct sys_ret {
+	/** Status. */
+	sys_arg_t s;
+
+	/** First argument. */
+	sys_arg_t ar0;
+
+	/** Second argument. */
+	sys_arg_t ar1;
+
+	/** Third argument. */
+	sys_arg_t ar2;
+
+	/** Fourth argument. */
+	sys_arg_t ar3;
+
+	/** Fifth argument. */
+	sys_arg_t ar4;
+};
+
 #endif /* KMI_SYSCALLS_H */
diff --git a/include/kmi/types.h b/include/kmi/types.h
index 5d7225e..2443f89 100644
--- a/include/kmi/types.h
+++ b/include/kmi/types.h
@@ -127,6 +127,12 @@ typedef uint32_t size_t;
 typedef int32_t ssize_t;
 #endif
 
+/** Maximum alignment. Works for most platforms, I think. */
+typedef union {
+	intmax_t ll;
+	long double ld;
+} max_align_t;
+
 /** Expands to integer constant of type \ref int8_t. */
 #define INT8_C __INT8_C
 
diff --git a/include/kmi/uapi.h b/include/kmi/uapi.h
index 891b5f9..39ba79f 100644
--- a/include/kmi/uapi.h
+++ b/include/kmi/uapi.h
@@ -18,40 +18,6 @@
  */
 typedef void (*sys_t)(struct tcb *t, long, long, long, long, long);
 
-/**
- * Syscall argument type.
- *
- * \todo: Should this be arch specific? should be the size of an integer
- * register.
- */
-typedef long sys_arg_t;
-
-/**
- * Return structure of syscall.
- * \note Field names are generic, and can be used for whatever,
- * check documentation of whatever you're doing.
- * @todo should this be placed into syscalls.h?
- */
-struct sys_ret {
-	/** Status. */
-	sys_arg_t s;
-
-	/** First argument. */
-	sys_arg_t ar0;
-
-	/** Second argument. */
-	sys_arg_t ar1;
-
-	/** Third argument. */
-	sys_arg_t ar2;
-
-	/** Fourth argument. */
-	sys_arg_t ar3;
-
-	/** Fifth argument. */
-	sys_arg_t ar4;
-};
-
 /** Helper for returning sys_ret with 0 arguments. */
 #define SYS_RET0() (struct sys_ret){0, 0, 0, 0, 0, 0}