[PATCH] sync with latest version of klibc (0.107)

23 files changed, 732 insertions, 154 deletions

diff --git a/klibc/klibc/CAVEATS b/klibc/klibc/CAVEATS
index c7131ac367..5bc11e4179 100644
--- a/klibc/klibc/CAVEATS
+++ b/klibc/klibc/CAVEATS
@@ -49,3 +49,13 @@ theading:
 klibc is not thread-safe.  Consequently, clone() or any of the
 pthreads functions are not included.
 
+
+bsd_signal vs sysv_signal:
+--------------------------
+
+There is no signal() call, because you never know if you want
+Linux/SysV semantics (SA_RESETHAND) or GNU/BSD semantics (SA_RESTART).
+The best, in *any* circumstances, is to never use signal() and instead
+use sigaction(), but in order to simplify porting you can use either
+sysv_signal() or bsd_signal(), depending on what you actually want.
+
diff --git a/klibc/klibc/MCONFIG b/klibc/klibc/MCONFIG
index a46a98a9dd..253a9461b7 100644
--- a/klibc/klibc/MCONFIG
+++ b/klibc/klibc/MCONFIG
@@ -5,45 +5,9 @@
 
 SRCROOT = ..
 include ../MCONFIG
+include ../MRULES
 
 WARNFLAGS = -W -Wall -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Winline
 CFLAGS  = -Wp,-MD,$(dir $*).$(notdir $*).d $(OPTFLAGS) $(REQFLAGS) $(WARNFLAGS)
 
 SOFLAGS = -fPIC
-
-.SUFFIXES: .c .o .a .so .lo .i .S .s .ls .ss .lss
-
-.c.o:
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-.c.i:
-	$(CC) $(CFLAGS) -E -o $@ $<
-
-.c.s:
-	$(CC) $(CFLAGS) -S -o $@ $<
-
-.S.o:
-	$(CC) $(CFLAGS) -D__ASSEMBLY__ -c -o $@ $<
-
-.S.s:
-	$(CC) $(CFLAGS) -D__ASSEMBLY__ -E -o $@ $<
-
-.S.lo:
-	$(CC) $(CFLAGS) $(SOFLAGS) -D__ASSEMBLY__ -c -o $@ $<
-
-.S.ls:
-	$(CC) $(CFLAGS) $(SOFLAGS) -D__ASSEMBLY__ -E -o $@ $<
-
-.s.o:
-	$(CC) $(CFLAGS) -x assembler -c -o $@ $<
-
-.ls.lo:
-	$(CC) $(CFLAGS) $(SOFLAGS) -x assembler -c -o $@ $<
-
-.c.lo:
-	$(CC) $(CFLAGS) $(SOFLAGS) -c -o $@ $<
-
-.c.ls:
-	$(CC) $(CFLAGS) $(SOFLAGS) -S -o $@ $<
-
-
diff --git a/klibc/klibc/Makefile b/klibc/klibc/Makefile
index def201524a..0d5b197f0d 100644
--- a/klibc/klibc/Makefile
+++ b/klibc/klibc/Makefile
@@ -22,7 +22,7 @@ LIBOBJS = vsnprintf.o snprintf.o vsprintf.o sprintf.o \
 	  fopen.o fread.o fread2.o fgetc.o fgets.o \
 	  fwrite.o fwrite2.o fputc.o fputs.o puts.o \
 	  sleep.o usleep.o raise.o abort.o assert.o alarm.o pause.o \
-	  __signal.o signal.o bsd_signal.o siglist.o siglongjmp.o \
+	  __signal.o sysv_signal.o bsd_signal.o siglist.o siglongjmp.o \
 	  sigaction.o sigpending.o sigprocmask.o sigsuspend.o \
 	  brk.o sbrk.o malloc.o realloc.o calloc.o mmap.o getpagesize.o \
 	  memcpy.o memcmp.o memset.o memccpy.o memmem.o memswap.o \
@@ -33,7 +33,8 @@ LIBOBJS = vsnprintf.o snprintf.o vsprintf.o sprintf.o \
 	  strsep.o strtok.o \
 	  gethostname.o getdomainname.o getcwd.o \
 	  seteuid.o setegid.o setresuid.o setresgid.o \
-	  getenv.o setenv.o unsetenv.o getopt.o readdir.o \
+	  getenv.o setenv.o putenv.o __put_env.o unsetenv.o \
+	  getopt.o readdir.o \
 	  syslog.o closelog.o pty.o isatty.o reboot.o \
 	  time.o utime.o fdatasync.o llseek.o select.o nice.o getpriority.o \
 	  qsort.o lrand48.o srand48.o seed48.o \
diff --git a/klibc/klibc/README b/klibc/klibc/README
index ce0ad7ba6a..4495908a22 100644
--- a/klibc/klibc/README
+++ b/klibc/klibc/README
@@ -9,12 +9,12 @@ this:
 
 a) In the source root directory (the directory above the one in which
    this file is found) create a symlink called "linux" pointing to a
-   reasonably recent Linux kernel tree (2.4 or 2.5 should be OK.)
+   reasonably recent Linux kernel tree (2.4 or 2.6 should be OK.)
    This tree must have the include/asm symlink set up for the
    architecture you're compiling for, and include/linux/autoconf.h
    must exist.  The easiest way to make sure of all of these is to do
    a "make config" or any of its variants on the kernel tree is
-   question, followed by a "make dep".
+   question, followed by a "make dep" (2.4) or "make prepare" (2.6).
 
 b) If you're cross-compiling, change ARCH in the main MCONFIG file to
    the appropriate architecture, and set CROSS to your toolchain
@@ -34,16 +34,17 @@ b) If you're cross-compiling, change ARCH in the main MCONFIG file to
 
    The following is the last known status of various architectures:
 
-   Known to work:	       alpha arm ia64 i386 s390 s390x sparc
+   Known to work:	       alpha arm ia64 i386 ppc s390 s390x sparc
 			       sparc64 x86_64*
    Works static, not shared:   mips* arm-thumb sh*
-   Might work:		       ppc ppc64
+   Might work:		       ppc64
    Need porting work:	       cris m68k mips64 parisc
 
    x86_64:   requires a kernel header patch (to be created)
    mips, sh: linker problem; might work with fixed linker
 
-   Shared library support for sparc/sparc64 requires binutils 2.13.90.0.4.
+   Shared library support requires binutils 2.13.90.0.4 or later on
+   many architectures.
 
    Note that even the "known to work" ones likely have bugs.  Please
    report them if you run into them.
@@ -52,6 +53,10 @@ c) Type "make" and pray...
 
 d) Try the test programs in the tests/ directory.  They should run...
 
-Contact me at <hpa@zytor.com> for more info.
+Contact the klibc mailing list:
+
+	http://www.zytor.com/mailman/listinfo/klibc
+
+... for more info.
 
 	-hpa
diff --git a/klibc/klibc/__put_env.c b/klibc/klibc/__put_env.c
new file mode 100644
index 0000000000..7e55f2c43b
--- /dev/null
+++ b/klibc/klibc/__put_env.c
@@ -0,0 +1,60 @@
+/*
+ * __put_env.c - common code for putenv() and setenv()
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Initialized to zero, meaning "not malloc'd" */
+static size_t __environ_size;
+
+/* str should be a duplicated version of the input string;
+   len is the length of the key including the = sign */
+int __put_env(char *str, size_t len, int overwrite)
+{
+  char **p, *q;
+  char **newenv;
+  size_t n;
+
+  n = 1;			/* Include space for final NULL */
+  for ( p = environ ; (q = *p) ; p++ ) {
+    n++;
+    if ( !strncmp(q,str,len) ) {
+      if ( !overwrite )
+	free(str);
+      else
+	*p = str;		/* Possible memory leak... */
+      return 0;
+    }
+  }
+
+  /* Need to extend the environment */
+  if ( n < __environ_size ) {
+    p[1] = NULL;
+    *p = str;
+    return 0;
+  } else {
+    if ( __environ_size ) {
+      newenv = realloc(environ, (__environ_size << 1)*sizeof(char *));
+      if ( !newenv )
+	return -1;
+
+      __environ_size <<= 1;
+    } else {
+      /* Make a reasonable guess how much more space we need */
+      size_t newsize = n+32;
+      newenv = malloc(newsize*sizeof(char *));
+      if ( !newenv )
+	return -1;
+
+      memcpy(newenv, environ, n*sizeof(char *));
+      __environ_size = newsize;
+    }
+    newenv[n-1] = str;		/* Old NULL position */
+    newenv[n]   = NULL;
+    environ = newenv;
+  }
+  return 0;
+}
diff --git a/klibc/klibc/arch/x86_64/include/klibc/archsys.h b/klibc/klibc/arch/x86_64/include/klibc/archsys.h
index 3bd8b0a5d9..2ec72cd397 100644
--- a/klibc/klibc/arch/x86_64/include/klibc/archsys.h
+++ b/klibc/klibc/arch/x86_64/include/klibc/archsys.h
@@ -7,9 +7,88 @@
 #ifndef _KLIBC_ARCHSYS_H
 #define _KLIBC_ARCHSYS_H
 
-/* x86-64 seems to miss _syscall6() from its headers */
+/* The x86-64 syscall headers are needlessly inefficient */
 
-#ifndef _syscall6
+#undef _syscall0
+#undef _syscall1
+#undef _syscall2
+#undef _syscall3
+#undef _syscall4
+#undef _syscall5
+#undef _syscall6
+
+#define _syscall0(type,name) \
+type name (void) \
+{ \
+long __res; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall1(type,name,type1,arg1) \
+type name (type1 arg1) \
+{ \
+long __res; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name),"D" (arg1) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
+type name (type1 arg1,type2 arg2) \
+{ \
+long __res; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name),"D" (arg1),"S" (arg2) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+type name (type1 arg1,type2 arg2,type3 arg3) \
+{ \
+long __res; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name),"D" (arg1),"S" (arg2), \
+          "d" (arg3) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
+{ \
+long __res; \
+register type4 __r10 asm("%r10") = arg4; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name),"D" (arg1),"S" (arg2), \
+          "d" (arg3),"r" (__r10) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+          type5,arg5) \
+type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+{ \
+long __res; \
+register type4 __r10 asm("%r10") = arg4; \
+register type5 __r8  asm("%r8")  = arg5; \
+__asm__ volatile (__syscall \
+        : "=a" (__res) \
+        : "0" (__NR_##name),"D" (arg1),"S" (arg2), \
+          "d" (arg3),"r" (__r10),"r" (__r8) \
+        : __syscall_clobber); \
+__syscall_return(type,__res); \
+}
 
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
           type5,arg5,type6,arg6) \
@@ -27,6 +106,4 @@ __asm__ volatile (__syscall \
 __syscall_return(type,__res); \
 }
 
-#endif /* _syscall6 missing */
-
 #endif /* _KLIBC_ARCHSYS_H */
diff --git a/klibc/klibc/include/elf.h b/klibc/klibc/include/elf.h
index bd0f3e7f9b..52f47d042e 100644
--- a/klibc/klibc/include/elf.h
+++ b/klibc/klibc/include/elf.h
@@ -5,8 +5,8 @@
 #ifndef _ELF_H
 #define _ELF_H
 
-#include <sys/types.h>
-#include <linux/elf.h>
+#include <sys/elf32.h>
+#include <sys/elf64.h>
 
 #endif /* _ELF_H */
 
diff --git a/klibc/klibc/include/signal.h b/klibc/klibc/include/signal.h
index f9eebb2a29..513b4e5a04 100644
--- a/klibc/klibc/include/signal.h
+++ b/klibc/klibc/include/signal.h
@@ -64,7 +64,7 @@ static __inline__ int sigismember(sigset_t *__set, int __signum)
 }
 
 __extern __sighandler_t __signal(int, __sighandler_t, int);
-__extern __sighandler_t signal(int, __sighandler_t);
+__extern __sighandler_t sysv_signal(int, __sighandler_t);
 __extern __sighandler_t bsd_signal(int, __sighandler_t);
 __extern int sigaction(int, const struct sigaction *, struct sigaction *);
 __extern int sigprocmask(int, const sigset_t *, sigset_t *);
diff --git a/klibc/klibc/include/stdint.h b/klibc/klibc/include/stdint.h
index 2022a30fd7..47fec18594 100644
--- a/klibc/klibc/include/stdint.h
+++ b/klibc/klibc/include/stdint.h
@@ -110,4 +110,7 @@ typedef uint64_t uintmax_t;
 
 #endif
 
+/* Keep the kernel from trying to define these types... */
+#define __BIT_TYPES_DEFINED__
+
 #endif /* _STDINT_H */
diff --git a/klibc/klibc/include/sys/elf32.h b/klibc/klibc/include/sys/elf32.h
new file mode 100644
index 0000000000..652de5bc5f
--- /dev/null
+++ b/klibc/klibc/include/sys/elf32.h
@@ -0,0 +1,115 @@
+/*
+ * sys/elf32.h
+ */
+
+#ifndef _SYS_ELF32_H
+#define _SYS_ELF32_H
+
+#include <sys/elfcommon.h>
+
+/* ELF standard typedefs (yet more proof that <stdint.h> was way overdue) */
+typedef uint16_t  Elf32_Half;
+typedef int16_t   Elf32_SHalf;
+typedef uint32_t  Elf32_Word;
+typedef int32_t   Elf32_Sword;
+typedef uint64_t  Elf32_Xword;
+typedef int64_t   Elf32_Sxword;
+
+typedef uint32_t  Elf32_Off;
+typedef uint32_t  Elf32_Addr;
+typedef uint16_t  Elf32_Section;
+
+/* Dynamic header */
+
+typedef struct elf32_dyn {
+  Elf32_Sword d_tag;
+  union{
+    Elf32_Sword d_val;
+    Elf32_Addr  d_ptr;
+  } d_un;
+} Elf32_Dyn;
+
+/* Relocations */
+
+#define ELF32_R_SYM(x)	((x) >> 8)
+#define ELF32_R_TYPE(x)	((x) & 0xff)
+
+typedef struct elf32_rel {
+  Elf32_Addr    r_offset;
+  Elf32_Word    r_info;
+} Elf32_Rel;
+
+typedef struct elf32_rela {
+  Elf32_Addr    r_offset;
+  Elf32_Word    r_info;
+  Elf32_Sword   r_addend;
+} Elf32_Rela;
+
+/* Symbol */
+
+typedef struct elf32_sym {
+  Elf32_Word    st_name;
+  Elf32_Addr    st_value;
+  Elf32_Word    st_size;
+  unsigned char st_info;
+  unsigned char st_other;
+  Elf32_Half    st_shndx;
+} Elf32_Sym;
+
+/* Main file header */
+
+typedef struct elf32_hdr {
+  unsigned char e_ident[EI_NIDENT];
+  Elf32_Half    e_type;
+  Elf32_Half    e_machine;
+  Elf32_Word    e_version;
+  Elf32_Addr    e_entry;
+  Elf32_Off     e_phoff;
+  Elf32_Off     e_shoff;
+  Elf32_Word    e_flags;
+  Elf32_Half    e_ehsize;
+  Elf32_Half    e_phentsize;
+  Elf32_Half    e_phnum;
+  Elf32_Half    e_shentsize;
+  Elf32_Half    e_shnum;
+  Elf32_Half    e_shstrndx;
+} Elf32_Ehdr;
+
+/* Program header */
+
+typedef struct elf32_phdr {
+  Elf32_Word    p_type;
+  Elf32_Off     p_offset;
+  Elf32_Addr    p_vaddr;
+  Elf32_Addr    p_paddr;
+  Elf32_Word    p_filesz;
+  Elf32_Word    p_memsz;
+  Elf32_Word    p_flags;
+  Elf32_Word    p_align;
+} Elf32_Phdr;
+
+
+/* Section header */
+
+typedef struct elf32_shdr {
+  Elf32_Word    sh_name;
+  Elf32_Word    sh_type;
+  Elf32_Word    sh_flags;
+  Elf32_Addr    sh_addr;
+  Elf32_Off     sh_offset;
+  Elf32_Word    sh_size;
+  Elf32_Word    sh_link;
+  Elf32_Word    sh_info;
+  Elf32_Word    sh_addralign;
+  Elf32_Word    sh_entsize;
+} Elf32_Shdr;
+
+/* Note header */
+typedef struct elf32_note {
+  Elf32_Word    n_namesz;       /* Name size */
+  Elf32_Word    n_descsz;       /* Content size */
+  Elf32_Word    n_type;         /* Content type */
+} Elf32_Nhdr;
+
+#endif /* _SYS_ELF32_H */
+
diff --git a/klibc/klibc/include/sys/elf64.h b/klibc/klibc/include/sys/elf64.h
new file mode 100644
index 0000000000..750ddac4d9
--- /dev/null
+++ b/klibc/klibc/include/sys/elf64.h
@@ -0,0 +1,115 @@
+/*
+ * sys/elf64.h
+ */
+
+#ifndef _SYS_ELF64_H
+#define _SYS_ELF64_H
+
+#include <sys/elfcommon.h>
+
+/* ELF standard typedefs (yet more proof that <stdint.h> was way overdue) */
+typedef uint16_t  Elf64_Half;
+typedef int16_t   Elf64_SHalf;
+typedef uint32_t  Elf64_Word;
+typedef int32_t   Elf64_Sword;
+typedef uint64_t  Elf64_Xword;
+typedef int64_t   Elf64_Sxword;
+
+typedef uint64_t  Elf64_Off;
+typedef uint64_t  Elf64_Addr;
+typedef uint16_t  Elf64_Section;
+
+/* Dynamic header */
+
+typedef struct elf64_dyn {
+  Elf64_Sxword d_tag;
+  union{
+    Elf64_Xword d_val;
+    Elf64_Addr  d_ptr;
+  } d_un;
+} Elf64_Dyn;
+
+/* Relocations */
+
+#define ELF64_R_SYM(x)	((x) >> 32)
+#define ELF64_R_TYPE(x)	((x) & 0xffffffff)
+
+typedef struct elf64_rel {
+  Elf64_Addr    r_offset;
+  Elf64_Xword   r_info;
+} Elf64_Rel;
+
+typedef struct elf64_rela {
+  Elf64_Addr    r_offset;
+  Elf64_Xword   r_info;
+  Elf64_Sxword  r_addend;
+} Elf64_Rela;
+
+/* Symbol */
+
+typedef struct elf64_sym {
+  Elf64_Word    st_name;
+  unsigned char st_info;
+  unsigned char st_other;
+  Elf64_Half    st_shndx;
+  Elf64_Addr    st_value;
+  Elf64_Xword   st_size;
+} Elf64_Sym;
+
+/* Main file header */
+
+typedef struct elf64_hdr {
+  unsigned char e_ident[EI_NIDENT];
+  Elf64_Half    e_type;
+  Elf64_Half    e_machine;
+  Elf64_Word    e_version;
+  Elf64_Addr    e_entry;
+  Elf64_Off     e_phoff;
+  Elf64_Off     e_shoff;
+  Elf64_Word    e_flags;
+  Elf64_Half    e_ehsize;
+  Elf64_Half    e_phentsize;
+  Elf64_Half    e_phnum;
+  Elf64_Half    e_shentsize;
+  Elf64_Half    e_shnum;
+  Elf64_Half    e_shstrndx;
+} Elf64_Ehdr;
+
+/* Program header */
+
+typedef struct elf64_phdr {
+  Elf64_Word    p_type;
+  Elf64_Word    p_flags;
+  Elf64_Off     p_offset;
+  Elf64_Addr    p_vaddr;
+  Elf64_Addr    p_paddr;
+  Elf64_Xword   p_filesz;
+  Elf64_Xword   p_memsz;
+  Elf64_Xword   p_align;
+} Elf64_Phdr;
+
+
+/* Section header */
+
+typedef struct elf64_shdr {
+  Elf64_Word    sh_name;
+  Elf64_Word    sh_type;
+  Elf64_Xword   sh_flags;
+  Elf64_Addr    sh_addr;
+  Elf64_Off     sh_offset;
+  Elf64_Xword   sh_size;
+  Elf64_Word    sh_link;
+  Elf64_Word    sh_info;
+  Elf64_Xword   sh_addralign;
+  Elf64_Xword   sh_entsize;
+} Elf64_Shdr;
+
+/* Note header */
+typedef struct elf64_note {
+  Elf64_Word    n_namesz;       /* Name size */
+  Elf64_Word    n_descsz;       /* Content size */
+  Elf64_Word    n_type;         /* Content type */
+} Elf64_Nhdr;
+
+#endif /* _SYS_ELF64_H */
+
diff --git a/klibc/klibc/include/sys/elfcommon.h b/klibc/klibc/include/sys/elfcommon.h
new file mode 100644
index 0000000000..f984f6a56b
--- /dev/null
+++ b/klibc/klibc/include/sys/elfcommon.h
@@ -0,0 +1,186 @@
+/*
+ * sys/elfcommon.h
+ */
+
+#ifndef _SYS_ELFCOMMON_H
+#define _SYS_ELFCOMMON_H
+
+/* Segment types */
+#define PT_NULL    	0
+#define PT_LOAD    	1
+#define PT_DYNAMIC 	2
+#define PT_INTERP  	3
+#define PT_NOTE    	4
+#define PT_SHLIB   	5
+#define PT_PHDR    	6
+#define PT_LOOS    	0x60000000
+#define PT_HIOS    	0x6fffffff
+#define PT_LOPROC  	0x70000000
+#define PT_HIPROC  	0x7fffffff
+#define PT_GNU_EH_FRAME	0x6474e550 /* Extension, eh? */
+
+/* ELF file types */
+#define ET_NONE   	0
+#define ET_REL    	1
+#define ET_EXEC   	2
+#define ET_DYN    	3
+#define ET_CORE   	4
+#define ET_LOPROC 	0xff00
+#define ET_HIPROC 	0xffff
+
+/* ELF machine types */
+#define EM_NONE  	0
+#define EM_M32   	1
+#define EM_SPARC 	2
+#define EM_386   	3
+#define EM_68K   	4
+#define EM_88K   	5
+#define EM_486   	6	/* Not used in Linux at least */
+#define EM_860   	7
+#define EM_MIPS         8       /* R3k, bigendian(?) */
+#define EM_MIPS_RS4_BE 	10      /* R4k BE */
+#define EM_PARISC      	15
+#define EM_SPARC32PLUS 	18
+#define EM_PPC         	20
+#define EM_PPC64       	21
+#define EM_S390         22
+#define EM_SH          	42
+#define EM_SPARCV9	43	/* v9 = SPARC64 */
+#define EM_H8_300H      47
+#define EM_H8S          48
+#define EM_IA_64        50	/* Itanic */
+#define EM_X86_64       62
+#define EM_CRIS         76
+#define EM_V850         87
+#define EM_ALPHA        0x9026	/* Interrim Alpha that stuck around */
+#define EM_CYGNUS_V850  0x9080	/* Old v850 ID used by Cygnus */
+#define EM_S390_OLD     0xA390	/* Obsolete interrim value for S/390 */
+
+/* Dynamic type values */
+#define DT_NULL		0
+#define DT_NEEDED	1
+#define DT_PLTRELSZ	2
+#define DT_PLTGOT	3
+#define DT_HASH		4
+#define DT_STRTAB	5
+#define DT_SYMTAB	6
+#define DT_RELA		7
+#define DT_RELASZ	8
+#define DT_RELAENT	9
+#define DT_STRSZ	10
+#define DT_SYMENT	11
+#define DT_INIT		12
+#define DT_FINI		13
+#define DT_SONAME	14
+#define DT_RPATH	15
+#define DT_SYMBOLIC	16
+#define DT_REL		17
+#define DT_RELSZ	18
+#define DT_RELENT	19
+#define DT_PLTREL	20
+#define DT_DEBUG	21
+#define DT_TEXTREL	22
+#define DT_JMPREL	23
+#define DT_LOPROC	0x70000000
+#define DT_HIPROC	0x7fffffff
+
+/* Auxilliary table entries */
+#define AT_NULL		0       /* end of vector */
+#define AT_IGNORE	1	/* entry should be ignored */
+#define AT_EXECFD	2	/* file descriptor of program */
+#define AT_PHDR		3	/* program headers for program */
+#define AT_PHENT	4	/* size of program header entry */
+#define AT_PHNUM	5	/* number of program headers */
+#define AT_PAGESZ	6	/* system page size */
+#define AT_BASE		7	/* base address of interpreter */
+#define AT_FLAGS	8	/* flags */
+#define AT_ENTRY	9	/* entry point of program */
+#define AT_NOTELF	10	/* program is not ELF */
+#define AT_UID		11	/* real uid */
+#define AT_EUID		12	/* effective uid */
+#define AT_GID		13	/* real gid */
+#define AT_EGID		14	/* effective gid */
+#define AT_PLATFORM	15	/* string identifying CPU for optimizations */
+#define AT_HWCAP  	16	/* arch dependent hints at CPU capabilities */
+#define AT_CLKTCK 	17	/* frequency at which times() increments */
+/* 18..22 = ? */
+#define AT_SECURE 	23	/* secure mode boolean */
+
+/* Program header permission flags */
+#define PF_X            0x1
+#define PF_W            0x2
+#define PF_R            0x4
+
+/* Section header types */
+#define SHT_NULL        0
+#define SHT_PROGBITS    1
+#define SHT_SYMTAB      2
+#define SHT_STRTAB      3
+#define SHT_RELA        4
+#define SHT_HASH        5
+#define SHT_DYNAMIC     6
+#define SHT_NOTE        7
+#define SHT_NOBITS      8
+#define SHT_REL         9
+#define SHT_SHLIB       10
+#define SHT_DYNSYM      11
+#define SHT_NUM         12
+#define SHT_LOPROC      0x70000000
+#define SHT_HIPROC      0x7fffffff
+#define SHT_LOUSER      0x80000000
+#define SHT_HIUSER      0xffffffff
+
+/* Section header flags */
+#define SHF_WRITE       0x1
+#define SHF_ALLOC       0x2
+#define SHF_EXECINSTR   0x4
+#define SHF_MASKPROC    0xf0000000
+
+/* Special section numbers */
+#define SHN_UNDEF       0
+#define SHN_LORESERVE   0xff00
+#define SHN_LOPROC      0xff00
+#define SHN_HIPROC      0xff1f
+#define SHN_ABS         0xfff1
+#define SHN_COMMON      0xfff2
+#define SHN_HIRESERVE   0xffff
+
+/* Lenght of magic at the start of a file */
+#define EI_NIDENT	16
+
+/* Magic number constants... */
+#define EI_MAG0         0	/* e_ident[] indexes */
+#define EI_MAG1         1
+#define EI_MAG2         2
+#define EI_MAG3         3
+#define EI_CLASS        4
+#define EI_DATA         5
+#define EI_VERSION      6
+#define EI_OSABI        7
+#define EI_PAD          8
+
+#define ELFMAG0         0x7f	/* EI_MAG */
+#define ELFMAG1         'E'
+#define ELFMAG2         'L'
+#define ELFMAG3         'F'
+#define ELFMAG          "\177ELF"
+#define SELFMAG         4
+
+#define ELFCLASSNONE    0	/* EI_CLASS */
+#define ELFCLASS32      1
+#define ELFCLASS64      2
+#define ELFCLASSNUM     3
+
+#define ELFDATANONE     0	/* e_ident[EI_DATA] */
+#define ELFDATA2LSB     1
+#define ELFDATA2MSB     2
+
+#define EV_NONE         0	/* e_version, EI_VERSION */
+#define EV_CURRENT      1
+#define EV_NUM          2
+
+#define ELFOSABI_NONE   0
+#define ELFOSABI_LINUX  3
+
+#endif /* _SYS_ELFCOMMON_H */
+
diff --git a/klibc/klibc/include/sys/sysmacros.h b/klibc/klibc/include/sys/sysmacros.h
new file mode 100644
index 0000000000..7f1e0822b3
--- /dev/null
+++ b/klibc/klibc/include/sys/sysmacros.h
@@ -0,0 +1,31 @@
+/*
+ * sys/sysmacros.h
+ *
+ * Constructs to create and pick apart dev_t.  This applies to the Linux 2.6
+ * 32-bit dev_t format.
+ */
+
+#ifndef _SYS_SYSMACROS_H
+#define _SYS_SYSMACROS_H
+
+#ifndef _SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+static __inline__ int major(dev_t __d)
+{
+  return (__d >> 8) & 0xfff;
+}
+
+static __inline__ int minor(dev_t __d)
+{
+  return (__d & 0xff) | ((__d >> 12) & 0xfff00);
+}
+
+static __inline__ dev_t makedev(int __ma, int __mi)
+{
+  return ((__ma & 0xfff) << 8) | (__mi & 0xff) | ((__mi & 0xfff00) << 12);
+}
+
+#endif /* _SYS_SYSMACROS_H */
+
diff --git a/klibc/klibc/include/sys/time.h b/klibc/klibc/include/sys/time.h
index 4eccf824a4..b503d21076 100644
--- a/klibc/klibc/include/sys/time.h
+++ b/klibc/klibc/include/sys/time.h
@@ -6,6 +6,7 @@
 #define _SYS_TIME_H
 
 #include <klibc/extern.h>
+#include <sys/types.h>
 #include <linux/time.h>
 
 __extern int gettimeofday(struct timeval *, struct timezone *);
diff --git a/klibc/klibc/include/sys/types.h b/klibc/klibc/include/sys/types.h
index a25873cc4b..0aaeeb1612 100644
--- a/klibc/klibc/include/sys/types.h
+++ b/klibc/klibc/include/sys/types.h
@@ -1,8 +1,5 @@
 /*
  * sys/types.h
- *
- * This is a bastardized version of linux/types.h, since that file
- * is broken w.r.t. <stdint.h> definitions.
  */
 
 #ifndef _SYS_TYPES_H
@@ -25,7 +22,7 @@ typedef uint32_t		dev_t;
 typedef __kernel_ino_t		ino_t;
 typedef __kernel_mode_t		mode_t;
 typedef __kernel_nlink_t	nlink_t;
-typedef __kernel_off_t		off_t;
+typedef __kernel_off_t		off_t; /* Should become __kernel_loff_t... */
 typedef __kernel_pid_t		pid_t;
 typedef __kernel_daddr_t	daddr_t;
 typedef __kernel_key_t		key_t;
@@ -83,15 +80,11 @@ typedef unsigned short		ushort;
 typedef unsigned int		uint;
 typedef unsigned long		ulong;
 
-#ifndef __BIT_TYPES_DEFINED__
-#define __BIT_TYPES_DEFINED__
-
-typedef		__u8		u_int8_t;
-typedef		__u16		u_int16_t;
-typedef		__u32		u_int32_t;
-typedef		__u64		u_int64_t;
-
-#endif /* !(__BIT_TYPES_DEFINED__) */
+/* Linux-specific? */
+typedef uint8_t			u_int8_t;
+typedef uint16_t		u_int16_t;
+typedef uint32_t 		u_int32_t;
+typedef uint64_t		u_int64_t;
 
 /*
  * transition to 64-bit sector_t, possibly making it an option...
@@ -124,4 +117,9 @@ struct ustat {
 	char			f_fpack[6];
 };
 
+/*
+ * Some apps want this in <sys/types.h>
+ */
+#include <sys/sysmacros.h>
+
 #endif
diff --git a/klibc/klibc/include/sys/wait.h b/klibc/klibc/include/sys/wait.h
index cad6989bf7..4cfafc9408 100644
--- a/klibc/klibc/include/sys/wait.h
+++ b/klibc/klibc/include/sys/wait.h
@@ -11,6 +11,15 @@
 
 #include <linux/wait.h>
 
+#define WEXITSTATUS(s)	(((s) & 0xff00) >> 8)
+#define WTERMSIG(s)	((s) & 0x7f)
+#define WIFEXITED(s)	(WTERMSIG(s) == 0)
+#define WIFSTOPPED(s)	(WTERMSIG(s) == 0x7f)
+/* Ugly hack to avoid multiple evaluation of "s" */
+#define WIFSIGNALED(s)	(WTERMSIG((s)+1) >= 2)
+#define WCOREDUMP(s)	((s) & 0x80)
+#define WSTOPSIG(s)	WEXITSTATUS(s)
+
 __extern pid_t wait(int *);
 __extern pid_t waitpid(pid_t, int *, int);
 __extern pid_t wait3(int *, int, struct rusage *);
diff --git a/klibc/klibc/include/unistd.h b/klibc/klibc/include/unistd.h
index 3d5c6881d3..f1cde2376e 100644
--- a/klibc/klibc/include/unistd.h
+++ b/klibc/klibc/include/unistd.h
@@ -49,6 +49,12 @@ __extern int setresgid(gid_t, gid_t, gid_t);
 __extern int getfsuid(uid_t);
 __extern int setfsuid(uid_t);
 
+/* Macros for access() */
+#define R_OK	4		/* Read */
+#define W_OK	2		/* Write */
+#define X_OK	1		/* Execute */
+#define F_OK	0		/* Existence */
+
 __extern int access(const char *, int);
 __extern int link(const char *, const char *);
 __extern int unlink(const char *);
diff --git a/klibc/klibc/putenv.c b/klibc/klibc/putenv.c
new file mode 100644
index 0000000000..8138c653b4
--- /dev/null
+++ b/klibc/klibc/putenv.c
@@ -0,0 +1,40 @@
+/*
+ * putenv.c
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* str should be a duplicated version of the input string;
+   len is the length of the key including the = sign */
+int __put_env(char *str, size_t len, int overwrite);
+
+int putenv(const char *str)
+{
+  char *s;
+  const char *e, *z;
+
+  if ( !str ) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  e = NULL;
+  for ( z = str ; *z ; z++ ) {
+    if ( *z == '=' )
+      e = z;
+  }
+
+  if ( !e ) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  s = strdup(str);
+  if ( !s )
+    return -1;
+
+  return __put_env(s, e-str, 1);
+}
diff --git a/klibc/klibc/setenv.c b/klibc/klibc/setenv.c
index d1118ff3ed..d4ada53d74 100644
--- a/klibc/klibc/setenv.c
+++ b/klibc/klibc/setenv.c
@@ -7,87 +7,9 @@
 #include <string.h>
 #include <unistd.h>
 
-/* Initialized to zero, meaning "not malloc'd" */
-static size_t __environ_size;
-
 /* str should be a duplicated version of the input string;
    len is the length of the key including the = sign */
-static int _putenv(char *str, size_t len, int overwrite)
-{
-  char **p, *q;
-  char **newenv;
-  size_t n;
-
-  n = 1;			/* Include space for final NULL */
-  for ( p = environ ; (q = *p) ; p++ ) {
-    n++;
-    if ( !strncmp(q,str,len) ) {
-      if ( overwrite )
-	free(str);
-      else
-	*p = str;		/* Memory leak... */
-      return 0;
-    }
-  }
-
-  /* Need to extend the environment */
-  if ( n < __environ_size ) {
-    p[1] = NULL;
-    *p = str;
-    return 0;
-  } else {
-    if ( __environ_size ) {
-      newenv = realloc(environ, (__environ_size << 1)*sizeof(char *));
-      if ( !newenv )
-	return -1;
-
-      __environ_size <<= 1;
-    } else {
-      /* Make a reasonable guess how much more space we need */
-      size_t newsize = n+32;
-      newenv = malloc(newsize*sizeof(char *));
-      if ( !newenv )
-	return -1;
-
-      memcpy(newenv, environ, n*sizeof(char *));
-      __environ_size = newsize;
-    }
-    newenv[n+1] = NULL;
-    newenv[n]   = str;
-    environ = newenv;
-  }
-  return 0;
-}
-
-int putenv(const char *str)
-{
-  char *s;
-  const char *e, *z;
-  size_t len;
-
-  if ( !str ) {
-    errno = EINVAL;
-    return -1;
-  }
-
-  len = 0; e = NULL;
-  for ( z = str ; *z ; z++ ) {
-    len++;
-    if ( *z == '=' )
-      e = z;
-  }
-
-  if ( !e ) {
-    errno = EINVAL;
-    return -1;
-  }
-
-  s = strdup(str);
-  if ( !s )
-    return -1;
-
-  return _putenv(s, len, 1);
-}
+int __put_env(char *str, size_t len, int overwrite);
 
 int setenv(const char *name, const char *val, int overwrite)
 {
@@ -117,8 +39,7 @@ int setenv(const char *name, const char *val, int overwrite)
 
   memcpy(s, name, l1);
   s[l1] = '=';
-  memcpy(s+l1+1, val, l2);
-  s[l1+l2+1] = '\0';
+  memcpy(s+l1+1, val, l2+1);
 
-  return _putenv(s, l1+1, overwrite);
+  return __put_env(s, l1+1, overwrite);
 }
diff --git a/klibc/klibc/signal.c b/klibc/klibc/sysv_signal.c
index 982d0c659d..3e55a02bb5 100644
--- a/klibc/klibc/signal.c
+++ b/klibc/klibc/sysv_signal.c
@@ -1,10 +1,10 @@
 /*
- * signal.c
+ * sysv_signal.c
  */
 
 #include <signal.h>
 
-__sighandler_t signal(int signum, __sighandler_t handler)
+__sighandler_t sysv_signal(int signum, __sighandler_t handler)
 {
   /* Linux/SysV signal() semantics */
   return __signal(signum, handler, SA_RESETHAND);
diff --git a/klibc/klibc/tests/getenvtest.c b/klibc/klibc/tests/environ.c
index 07cac0cef7..6eeeb9197e 100644
--- a/klibc/klibc/tests/getenvtest.c
+++ b/klibc/klibc/tests/environ.c
@@ -17,10 +17,8 @@ int main(int argc, char *argv[], char *envp[])
   }
 
   /* Test environ */
-  printf("PATH = %s\n", getenv("PATH"));
-  printf("HOME = %s\n", getenv("HOME"));
-  printf("TERM = %s\n", getenv("TERM"));
-  printf("USER = %s\n", getenv("USER"));
+  for ( i = 0 ; envp[i] ; i++ )
+    printf("%s\n", envp[i]);
 
   return 0;
 }
diff --git a/klibc/klibc/tests/nfs_no_rpc.c b/klibc/klibc/tests/nfs_no_rpc.c
index 11b9f61fea..5c17706b63 100644
--- a/klibc/klibc/tests/nfs_no_rpc.c
+++ b/klibc/klibc/tests/nfs_no_rpc.c
@@ -282,7 +282,7 @@ static int do_call(struct sockaddr_in *sin, u_int32_t msg[], u_int32_t rmsg[],
 	int n;
 	int fd;
 
-	signal(SIGALRM, timeout);
+	sysv_signal(SIGALRM, timeout);
 	fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 	if (fd < 0)
 		goto Esocket;
diff --git a/klibc/klibc/tests/setenvtest.c b/klibc/klibc/tests/setenvtest.c
new file mode 100644
index 0000000000..111bef9dfe
--- /dev/null
+++ b/klibc/klibc/tests/setenvtest.c
@@ -0,0 +1,38 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+  (void)argc; (void)argv;
+
+  /* Set SETENV */
+  setenv("SETENV", "setenv", 1);
+
+  /* Set PUTENV */
+  putenv("PUTENV=putenv");
+
+  /* Print the results... */
+  printf("SETENV = %s\n", getenv("SETENV"));
+  printf("PUTENV = %s\n", getenv("PUTENV"));
+
+  /* Override tests */
+  setenv("SETENV", "setenv_good", 1);
+  putenv("PUTENV=putenv_good");
+  printf("SETENV = %s\n", getenv("SETENV"));
+  printf("PUTENV = %s\n", getenv("PUTENV"));
+
+  /* Non-override test */
+  setenv("SETENV", "setenv_bad", 0);
+  setenv("NEWENV", "newenv_good", 0);
+  printf("SETENV = %s\n", getenv("SETENV"));
+  printf("NEWENV = %s\n", getenv("NEWENV"));
+
+  /* Undef test */
+  unsetenv("SETENV");
+  unsetenv("NEWENV");
+  printf("SETENV = %s\n", getenv("SETENV"));
+  printf("NEWENV = %s\n", getenv("NEWENV"));
+
+  return 0;
+}