summaryrefslogtreecommitdiff
path: root/src/lib/syscall
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/syscall')
-rw-r--r--src/lib/syscall/file_darwin.go15
-rw-r--r--src/lib/syscall/file_linux.go60
-rw-r--r--src/lib/syscall/types_amd64_linux.go2
3 files changed, 57 insertions, 20 deletions
diff --git a/src/lib/syscall/file_darwin.go b/src/lib/syscall/file_darwin.go
index e3c9567e3..6c4eee6fb 100644
--- a/src/lib/syscall/file_darwin.go
+++ b/src/lib/syscall/file_darwin.go
@@ -111,6 +111,11 @@ func Chdir(dir string) (ret, errno int64) {
return r1, err;
}
+func Fchdir(fd int64) (ret, errno int64) {
+ r1, r2, err := Syscall(SYS_FCHDIR, fd, 0, 0);
+ return r1, err;
+}
+
func Link(oldname, newname string) (ret, errno int64) {
oldbuf := StringBytePtr(oldname);
newbuf := StringBytePtr(newname);
@@ -169,3 +174,13 @@ func Ftruncate(fd, length int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_FTRUNCATE, fd, length, 0);
return r1, err;
}
+
+// The const provides a compile-time constant so clients
+// can adjust to whether there is a working Getwd and avoid
+// even linking this function into the binary. See ../os/getwd.go.
+const ImplementsGetwd = false
+
+func Getwd() (string, int64) {
+ return "", ENOTSUP;
+}
+
diff --git a/src/lib/syscall/file_linux.go b/src/lib/syscall/file_linux.go
index f6b6ea7e6..2f8b9101f 100644
--- a/src/lib/syscall/file_linux.go
+++ b/src/lib/syscall/file_linux.go
@@ -13,39 +13,39 @@ import (
const nameBufsize = 512
-func Open(name string, mode int64, perm int64) (ret int64, errno int64) {
+func Open(name string, mode int64, perm int64) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_OPEN, int64(uintptr(unsafe.Pointer(namebuf))), mode, perm);
return r1, err;
}
-func Creat(name string, perm int64) (ret int64, errno int64) {
+func Creat(name string, perm int64) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_OPEN, int64(uintptr(unsafe.Pointer(namebuf))), O_CREAT|O_WRONLY|O_TRUNC, perm);
return r1, err;
}
-func Close(fd int64) (ret int64, errno int64) {
+func Close(fd int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_CLOSE, fd, 0, 0);
return r1, err;
}
-func Read(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
+func Read(fd int64, buf *byte, nbytes int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_READ, fd, int64(uintptr(unsafe.Pointer(buf))), nbytes);
return r1, err;
}
-func Write(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
+func Write(fd int64, buf *byte, nbytes int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_WRITE, fd, int64(uintptr(unsafe.Pointer(buf))), nbytes);
return r1, err;
}
-func Seek(fd int64, offset int64, whence int64) (ret int64, errno int64) {
+func Seek(fd int64, offset int64, whence int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_LSEEK, fd, offset, whence);
return r1, err;
}
-func Pipe(fds *[2]int64) (ret int64, errno int64) {
+func Pipe(fds *[2]int64) (ret, errno int64) {
var t [2] int32;
r1, r2, err := Syscall(SYS_PIPE, int64(uintptr(unsafe.Pointer(&t[0]))), 0, 0);
if r1 < 0 {
@@ -56,77 +56,97 @@ func Pipe(fds *[2]int64) (ret int64, errno int64) {
return 0, 0;
}
-func Stat(name string, buf *Stat_t) (ret int64, errno int64) {
+func Stat(name string, buf *Stat_t) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_STAT, int64(uintptr(unsafe.Pointer(namebuf))), int64(uintptr(unsafe.Pointer(buf))), 0);
return r1, err;
}
-func Lstat(name string, buf *Stat_t) (ret int64, errno int64) {
+func Lstat(name string, buf *Stat_t) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_LSTAT, int64(uintptr(unsafe.Pointer(namebuf))), int64(uintptr(unsafe.Pointer(buf))), 0);
return r1, err;
}
-func Fstat(fd int64, buf *Stat_t) (ret int64, errno int64) {
+func Fstat(fd int64, buf *Stat_t) (ret, errno int64) {
r1, r2, err := Syscall(SYS_FSTAT, fd, int64(uintptr(unsafe.Pointer(buf))), 0);
return r1, err;
}
-func Unlink(name string) (ret int64, errno int64) {
+func Unlink(name string) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_UNLINK, int64(uintptr(unsafe.Pointer(namebuf))), 0, 0);
return r1, err;
}
-func Rmdir(name string) (ret int64, errno int64) {
+func Rmdir(name string) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_RMDIR, int64(uintptr(unsafe.Pointer(namebuf))), 0, 0);
return r1, err;
}
-func Fcntl(fd, cmd, arg int64) (ret int64, errno int64) {
+func Fcntl(fd, cmd, arg int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_FCNTL, fd, cmd, arg);
return r1, err
}
-func Mkdir(name string, perm int64) (ret int64, errno int64) {
+func Mkdir(name string, perm int64) (ret, errno int64) {
namebuf := StringBytePtr(name);
r1, r2, err := Syscall(SYS_MKDIR, int64(uintptr(unsafe.Pointer(namebuf))), perm, 0);
return r1, err;
}
-func Dup2(fd1, fd2 int64) (ret int64, errno int64) {
+func Dup2(fd1, fd2 int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_DUP2, fd1, fd2, 0);
return r1, err;
}
-func Getdents(fd int64, buf *Dirent, nbytes int64) (ret int64, errno int64) {
+func Getdents(fd int64, buf *Dirent, nbytes int64) (ret, errno int64) {
r1, r2, err := Syscall(SYS_GETDENTS64, fd, int64(uintptr(unsafe.Pointer(buf))), nbytes);
return r1, err;
}
-func Chdir(dir string) (ret int64, errno int64) {
+func Chdir(dir string) (ret, errno int64) {
namebuf := StringBytePtr(dir);
r1, r2, err := Syscall(SYS_CHDIR, int64(uintptr(unsafe.Pointer(namebuf))), 0, 0);
return r1, err;
}
-func Link(oldpath, newpath string) (ret int64, errno int64) {
+func Fchdir(fd int64) (ret, errno int64) {
+ r1, r2, err := Syscall(SYS_FCHDIR, fd, 0, 0);
+ return r1, err;
+}
+
+const ImplementsGetwd = true
+
+func Getwd() (ret string, errno int64) {
+ var buf [PathMax]byte;
+ r1, r2, err := Syscall(SYS_GETCWD, int64(uintptr(unsafe.Pointer(&buf))), int64(len(buf)), 0);
+ if err != 0 {
+ return "", err;
+ }
+ // SYS_GETCWD returns the number of bytes written to buf, including the NUL.
+ if r1 < 1 || r1 > int64(len(buf)) || buf[r1-1] != 0 {
+ return "", EINVAL;
+ }
+ return string(buf[0:r1-1]), 0
+}
+
+func Link(oldpath, newpath string) (ret, errno int64) {
oldbuf := StringBytePtr(oldpath);
newbuf := StringBytePtr(newpath);
r1, r2, err := Syscall(SYS_LINK, int64(uintptr(unsafe.Pointer(oldbuf))), int64(uintptr(unsafe.Pointer(newbuf))), 0);
return r1, err;
}
-func Symlink(oldpath, newpath string) (ret int64, errno int64) {
+func Symlink(oldpath, newpath string) (ret, errno int64) {
oldbuf := StringBytePtr(oldpath);
newbuf := StringBytePtr(newpath);
r1, r2, err := Syscall(SYS_SYMLINK, int64(uintptr(unsafe.Pointer(oldbuf))), int64(uintptr(unsafe.Pointer(newbuf))), 0);
return r1, err;
}
-func Readlink(path string, buf *byte, nbytes int64) (ret int64, errno int64) {
+func Readlink(path string, buf *byte, nbytes int64) (ret, errno int64) {
pathbuf := StringBytePtr(path);
r1, r2, err := Syscall(SYS_READLINK, int64(uintptr(unsafe.Pointer(pathbuf))), int64(uintptr(unsafe.Pointer(buf))), nbytes);
return r1, err;
diff --git a/src/lib/syscall/types_amd64_linux.go b/src/lib/syscall/types_amd64_linux.go
index b15f0cbcc..a71606a5b 100644
--- a/src/lib/syscall/types_amd64_linux.go
+++ b/src/lib/syscall/types_amd64_linux.go
@@ -11,6 +11,8 @@ import "syscall"
const OS = "linux"
+const PathMax = 4096
+
// Time
type Timespec struct {
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-01 14:42:24 +0000