Add support for personality(), prctl(), ustat(), and ulimit()

syscalls, which had managed to stay unimplemented thus far.
 -Erik

3 files changed, 38 insertions, 6 deletions

diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile
index f308856ec..3135172c0 100644
--- a/libc/sysdeps/linux/common/Makefile
+++ b/libc/sysdeps/linux/common/Makefile
@@ -25,7 +25,8 @@ CSRC=	waitpid.c getdnnm.c gethstnm.c getcwd.c ptrace.c \
 	cmsg_nxthdr.c longjmp.c open64.c ftruncate64.c mmap64.c \
 	truncate64.c getrlimit64.c setrlimit64.c creat64.c \
 	llseek.c pread_write.c _exit.c sync.c getdirname.c \
-	sendfile64.c xstatconv.c getdents.c getdents64.c vfork.c
+	sendfile64.c xstatconv.c getdents.c getdents64.c vfork.c \
+	ulimit.c
 ifneq ($(strip $(EXCLUDE_BRK)),y)
 CSRC+=sbrk.c
 endif
diff --git a/libc/sysdeps/linux/common/bits/ustat.h b/libc/sysdeps/linux/common/bits/ustat.h
index aeafc22a5..69c6b7227 100644
--- a/libc/sysdeps/linux/common/bits/ustat.h
+++ b/libc/sysdeps/linux/common/bits/ustat.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,12 +16,16 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#ifndef _SYS_USTAT_H
+# error "Never include <bits/ustat.h> directly; use <sys/ustat.h> instead."
+#endif
+
 #include <sys/types.h>
 
 struct ustat
   {
-    __daddr_t f_tfree;
-    __ino_t f_tinode;
+    __daddr_t f_tfree;		/* Number of free blocks.  */
+    __ino_t f_tinode;		/* Number of free inodes.  */
     char f_fname[6];
     char f_fpack[6];
   };
diff --git a/libc/sysdeps/linux/common/syscalls.c b/libc/sysdeps/linux/common/syscalls.c
index 9c5fb9530..c37099dd5 100644
--- a/libc/sysdeps/linux/common/syscalls.c
+++ b/libc/sysdeps/linux/common/syscalls.c
@@ -2,8 +2,7 @@
 /*
  * Syscalls for uClibc
  *
- * Copyright (C) 2000 by Lineo, inc
- * Copyright (C) 2001, 2002 by Erik Andersen
+ * Copyright (C) 2001-2003 by Erik Andersen
  * Written by Erik Andersen <andersen@codpoet.org>
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -630,6 +629,7 @@ int setpgid(pid_t pid, pid_t pgid)
 #endif
 
 //#define __NR_ulimit           58
+//See ulimit.c
 
 //#define __NR_oldolduname      59
 
@@ -652,6 +652,20 @@ _syscall1(int, chroot, const char *, path);
 #endif
 
 //#define __NR_ustat            62
+#ifdef L___syscall_ustat
+#define __NR___syscall_ustat __NR_ustat
+#include <sys/stat.h>
+static inline
+_syscall2(int, __syscall_ustat, unsigned short int, kdev_t, struct ustat *, ubuf);
+int ustat(dev_t dev, struct ustat *ubuf)
+{ 
+	__kernel_dev_t k_dev;
+	/* We must convert the dev_t value to a __kernel_dev_t */
+	k_dev = ((major(dev) & 0xff) << 8) | (minor(dev) & 0xff);
+	return __syscall_ustat(k_dev, ubuf);
+}
+#endif
+
 
 //#define __NR_dup2             63
 #ifdef L_dup2
@@ -1345,6 +1359,12 @@ _syscall2(int, bdflush, int, __func, long int, __data);
 //#define __NR_sysfs            135
 
 //#define __NR_personality      136
+#ifdef __NR_personality
+#ifdef L_personality
+#include <sys/personality.h>
+_syscall1(int, personality, unsigned long int, __persona);
+#endif
+#endif
 
 //#define __NR_afs_syscall      137
 
@@ -1703,6 +1723,13 @@ int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid)
 #endif
 
 //#define __NR_prctl                    172
+#ifdef __NR_prctl
+#ifdef L_prctl
+#include <stdarg.h>
+//#include <sys/prctl.h>
+_syscall5(int, prctl, int, a, int, b, int, c, int, d, int, e);
+#endif
+#endif
 
 //#define __NR_rt_sigreturn             173
 //#define __NR_rt_sigaction             174