Changeset 3558ba93 in mainline for uspace/lib/posix/include

Timestamp:

2013-12-09T15:55:40Z (12 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

5b89d43b

Parents:

12735849 (diff), 9521eca (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge GCC port updates

This commit includes various small changes needed to compile GCC or
dependent libraries on more architectures than ia32.

A lot of ARM EABI functions (softfloat) were added, mostly as aliases
to already existing ones.

A generic implementation of long jump was added, based on context save
and restore functions.

Examples in src/c/ were updated to be compilable again and new scripts
for compiling with GCC were added.

New uspace/overlay directory was added that is verbatim copied into the
final image. Cleaning its content is left to the user.

A small `untar' utility was implemented for unpacking tarballs (it does
not support the standard switches nor a compressed content).

Merged branch: lp:~vojtech-horky/helenos/gcc-port

Location:

uspace/lib/posix/include/posix

Files:

• float.h (modified) (2 diffs)
• setjmp.h (moved) (moved from uspace/lib/c/generic/bitops.c ) (1 diff)
• stdlib.h (modified) (1 diff)

uspace/lib/posix/include/posix/float.h

@@ -59 +59 @@
         #undef DBL_EPSILON
         #define DBL_EPSILON __DBL_EPSILON__
+        #undef LDBL_EPSILON
+        #define LDBL_EPSILON __LDBL_EPSILON__
         #undef FLT_RADIX
         #define FLT_RADIX __FLT_RADIX__
@@ -69 +71 @@
         #undef FLT_MANT_DIG
         #define FLT_MANT_DIG __FLT_MANT_DIG__
+        #undef LDBL_MIN
+        #define LDBL_MIN __LDBL_MIN__
+        #undef LDBL_MAX
+        #define LDBL_MAX __LDBL_MAX__
         #undef LDBL_MANT_DIG 
         #define LDBL_MANT_DIG __LDBL_MANT_DIG__

uspace/lib/posix/include/posix/setjmp.h

@@ -27 +27 @@
  */
 
-/** @addtogroup libc
+/** @addtogroup libposix
  * @{
  */
 
-#include <bitops.h>
-
-int __popcountsi2(int a)
-{
-        int bits = 0;
-        for (unsigned int i = 0; i < sizeof(a) * 8; i++)         {
-                if (((a >> i) & 1) != 0) {
-                        bits++;
-                }
-        }
-        return bits;                                                                    
-}
-
+/*
+ * Just a pass-through to libc setjmp.
+ */
+#include "libc/setjmp.h"
 
 /** @}

uspace/lib/posix/include/posix/stdlib.h

@@ -56 +56 @@
 #define _Exit exit
 extern int __POSIX_DEF__(atexit)(void (*func)(void));
-extern void exit(int status);
+extern void exit(int status) __attribute__((noreturn));
 extern void abort(void) __attribute__((noreturn));