X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Farchitecture.h;h=cb82418a5e4b62162aa28b9511133f1987a29c58;hp=6a3f0b2d4b51f9d436bbaed33f25606c522a9a29;hb=b6b1849830f5e4a6065c3b0c993668e500c954d3;hpb=613e3a26c1209a30c0643159fdd7283cbcfc51f6

diff --git a/src/shared/architecture.h b/src/shared/architecture.h
index 6a3f0b2d4..cb82418a5 100644
--- a/src/shared/architecture.h
+++ b/src/shared/architecture.h
@@ -21,11 +21,16 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
+#include <endian.h>
+
 #include "util.h"
 
-/* A cleaned up architecture definition */
+/* A cleaned up architecture definition. We don't want to get lost in
+ * processor features, models, generations or even ABIs. Hence we
+ * focus on general family, and distuignish word width and
+ * endianness. */
 
-typedef enum Architecture {
+enum {
         ARCHITECTURE_X86 = 0,
         ARCHITECTURE_X86_64,
         ARCHITECTURE_PPC,
@@ -55,9 +60,9 @@ typedef enum Architecture {
         ARCHITECTURE_CRIS,
         _ARCHITECTURE_MAX,
         _ARCHITECTURE_INVALID = -1
-} Architecture;
+};
 
-Architecture uname_architecture(void);
+int uname_architecture(void);
 
 /*
  * LIB_ARCH_TUPLE should resolve to the local library path
@@ -77,15 +82,15 @@ Architecture uname_architecture(void);
 #  define native_architecture() ARCHITECTURE_X86
 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
 #elif defined(__powerpc64__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_PPC64
 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
 #  else
 #    define native_architecture() ARCHITECTURE_PPC64_LE
-#    error "Missing LIB_ARCH_TUPLE for PPC64LE"
+#    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
 #  endif
 #elif defined(__powerpc__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_PPC
 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 #  else
@@ -114,7 +119,7 @@ Architecture uname_architecture(void);
 #  define native_architecture() ARCHITECTURE_SPARC
 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 #elif defined(__mips64__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_MIPS64
 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 #  else
@@ -122,18 +127,18 @@ Architecture uname_architecture(void);
 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 #  endif
 #elif defined(__mips__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_MIPS
 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 #  else
 #    define native_architecture() ARCHITECTURE_MIPS_LE
 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
-#endif
+#  endif
 #elif defined(__alpha__)
 #  define native_architecture() ARCHITECTURE_ALPHA
 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 #elif defined(__aarch64__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_ARM64_BE
 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 #  else
@@ -141,16 +146,27 @@ Architecture uname_architecture(void);
 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 #  endif
 #elif defined(__arm__)
-#  if defined(WORDS_BIGENDIAN)
+#  if __BYTE_ORDER == __BIG_ENDIAN
 #    define native_architecture() ARCHITECTURE_ARM_BE
-#    error "Missing LIB_ARCH_TUPLE for ARM_BE"
+#    if defined(__ARM_EABI__)
+#      if defined(__ARM_PCS_VFP)
+#        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
+#      else
+#        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
+#      endif
+#    else
+#      define LIB_ARCH_TUPLE "armeb-linux-gnu"
+#    endif
 #  else
-#    if defined(__ARM_PCS_VFP)
-#      define native_architecture() ARCHITECTURE_ARM
-#      define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
+#    define native_architecture() ARCHITECTURE_ARM
+#    if defined(__ARM_EABI__)
+#      if defined(__ARM_PCS_VFP)
+#        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
+#      else
+#        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
+#      endif
 #    else
-#      define native_architecture() ARCHITECTURE_ARM
-#      define LIB_ARCH_TUPLE "arm-linux-gnueabi"
+#      define LIB_ARCH_TUPLE "arm-linux-gnu"
 #    endif
 #  endif
 #elif defined(__sh64__)
@@ -169,8 +185,8 @@ Architecture uname_architecture(void);
 #  define native_architecture() ARCHITECTURE_CRIS
 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 #else
-#error "Please register your architecture here!"
+#  error "Please register your architecture here!"
 #endif
 
-const char *architecture_to_string(Architecture a) _const_;
-Architecture architecture_from_string(const char *s) _pure_;
+const char *architecture_to_string(int a) _const_;
+int architecture_from_string(const char *s) _pure_;