filling out system layer

11 files changed, 105 insertions, 1 deletions

diff --git a/sys/src/brk.c b/sys/src/brk.c
new file mode 100644
index 0000000..85dd30c
--- /dev/null
+++ b/sys/src/brk.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·brk(void *addr)
+{
+    long ret = syscall(·Brk, addr);
+    return error(ret);
+}
diff --git a/sys/src/dirents.c b/sys/src/dirents.c
new file mode 100644
index 0000000..c00ce15
--- /dev/null
+++ b/sys/src/dirents.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·dirents(int fd, int len, void *buffer, int *size)
+{
+    long ret = *size = syscall(·GetDents, fd, buffer, len);
+    return error(ret);
+}
diff --git a/sys/src/madvise.c b/sys/src/madvise.c
new file mode 100644
index 0000000..49e512e
--- /dev/null
+++ b/sys/src/madvise.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·madvise(void *addr, uintptr len, int advice)
+{
+    long ret = syscall(·MAdvise, addr, len, advice);
+    return error(ret);
+}
diff --git a/sys/src/mlock.c b/sys/src/mlock.c
new file mode 100644
index 0000000..0de348f
--- /dev/null
+++ b/sys/src/mlock.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·mlock(void *addr, uintptr len)
+{
+    long ret = syscall(·MLock, addr, len);
+    return error(ret);
+}
diff --git a/sys/src/mmap.c b/sys/src/mmap.c
index fb5c5f4..21d927b 100644
--- a/sys/src/mmap.c
+++ b/sys/src/mmap.c
@@ -1 +1,17 @@
 #include "internal.h"
+
+int
+sys·mmap(void *start, uintptr len, int protect, int flags, int fd, intptr off, void **buf)
+{
+    long ret;
+    if(len >= PTRDIFF_MAX)
+        return sys·ErrorNoMemory;
+
+    ret = syscall(·MMap, start, len, protect, flags, fd, off);
+    if(ret < 0){
+        *buf = nil;
+        return -ret;
+    }
+    *buf = (void*)ret;
+    return 0;
+}
diff --git a/sys/src/mprotect.c b/sys/src/mprotect.c
new file mode 100644
index 0000000..6d20dc1
--- /dev/null
+++ b/sys/src/mprotect.c
@@ -0,0 +1,14 @@
+#include "internal.h"
+
+int
+sys·mprotect(void *addr, uintptr len, int prot)
+{
+    long ret;
+    uintptr beg, end;
+
+    beg = (uintptr)addr & -PAGESIZE;
+    end = (uintptr)(addr + len + PAGESIZE-1) & -PAGESIZE;
+
+    ret = syscall(·MProtect, beg, end-beg, prot);
+    return error(ret);
+}
diff --git a/sys/src/mremap.c b/sys/src/mremap.c
new file mode 100644
index 0000000..dda05ce
--- /dev/null
+++ b/sys/src/mremap.c
@@ -0,0 +1,20 @@
+#include "internal.h"
+
+int
+sys·mremap(void *addr, uintptr from, uintptr to, int flags, void **ret)
+{
+    long r;
+    void *new;
+
+    if(to >= PTRDIFF_MAX)
+        return sys·ErrorNoMemory;
+
+    new = (flags & sys·RemapFixed) ? *ret : nil;
+    r = syscall(·MRemap, addr, from, to, flags, new);
+    if(r > 0){
+        *ret = (void*)r;
+        return 0;
+    }
+
+    return error(r);
+}
diff --git a/sys/src/munlock.c b/sys/src/munlock.c
new file mode 100644
index 0000000..1986306
--- /dev/null
+++ b/sys/src/munlock.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·munlock(void *addr, uintptr len)
+{
+    long ret = syscall(·MUnlock, addr, len);
+    return error(ret);
+}
diff --git a/sys/src/munmap.c b/sys/src/munmap.c
new file mode 100644
index 0000000..2eee00c
--- /dev/null
+++ b/sys/src/munmap.c
@@ -0,0 +1,8 @@
+#include "internal.h"
+
+int
+sys·munmap(void *addr, uintptr len)
+{
+    long ret = syscall(·MUnmap, addr, len);
+    return error(ret);
+}
diff --git a/sys/src/read.c b/sys/src/read.c
index 8d308ba..db9cabf 100644
--- a/sys/src/read.c
+++ b/sys/src/read.c
@@ -1,7 +1,7 @@
 #include "internal.h"
 
 int
-sys·read(int fd, intptr len, void *buf, intptr *n)
+sys·read(int fd, uintptr len, void *buf, intptr *n)
 {
     intptr ret = *n = syscall(·Read, fd, buf, len);
     return error(ret);
diff --git a/sys/src/sbrk.c b/sys/src/sbrk.c
new file mode 100644
index 0000000..31af79b
--- /dev/null
+++ b/sys/src/sbrk.c
@@ -0,0 +1,6 @@
+#include "internal.h"
+
+int
+sys·sbrk(intptr inc, void *ret)
+{
+}