Add new module for Linux header file sys/auxv.

This header file provides access to the auxiliary vector. It was added to glibc version 2.16. See https://lwn.net/Articles/519085/ for some background information. Also adds the missing AT_HWCAP2 index to the elf module.
dlang · Jul 6, 2016 · a89d395 · a89d395
1 parent 68edbb3
commit a89d395
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diff --git a/mak/COPY b/mak/COPY
@@ -92,6 +92,7 @@ COPY=\
 	$(IMPDIR)\core\sys\linux\tipc.d \
 	$(IMPDIR)\core\sys\linux\unistd.d \
 	\
+	$(IMPDIR)\core\sys\linux\sys\auxv.d \
 	$(IMPDIR)\core\sys\linux\sys\inotify.d \
 	$(IMPDIR)\core\sys\linux\sys\mman.d \
 	$(IMPDIR)\core\sys\linux\sys\signalfd.d \

diff --git a/src/core/sys/linux/elf.d b/src/core/sys/linux/elf.d
@@ -823,6 +823,8 @@ enum AT_BASE_PLATFORM = 24;
 
 enum AT_RANDOM =       25;
 
+enum AT_HWCAP2 =       26;
+
 enum AT_EXECFN =       31;
 enum AT_SYSINFO =      32;
 enum AT_SYSINFO_EHDR = 33;

diff --git a/src/core/sys/linux/sys/auxv.d b/src/core/sys/linux/sys/auxv.d
@@ -0,0 +1,163 @@
+/**
+ * D header file for GNU/Linux.
+ *
+ * License:   $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
+ * Authors:   Kai Nacke
+ */
+module core.sys.linux.sys.auxv;
+
+import core.stdc.config;
+
+version (linux):
+extern (C):
+
+c_ulong getauxval(c_ulong type) nothrow pure @nogc @system;
+
+version(PPC)
+{
+  // See https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/powerpc/bits/hwcap.h
+
+  enum PPC_FEATURE_32                     = 0x80000000;
+  enum PPC_FEATURE_64                     = 0x40000000;
+  enum PPC_FEATURE_601_INSTR              = 0x20000000;
+  enum PPC_FEATURE_HAS_ALTIVEC            = 0x10000000;
+  enum PPC_FEATURE_HAS_FPU                = 0x08000000;
+  enum PPC_FEATURE_HAS_MMU                = 0x04000000;
+  enum PPC_FEATURE_HAS_4xxMAC             = 0x02000000;
+  enum PPC_FEATURE_UNIFIED_CACHE          = 0x01000000;
+  enum PPC_FEATURE_HAS_SPE                = 0x00800000;
+  enum PPC_FEATURE_HAS_EFP_SINGLE         = 0x00400000;
+  enum PPC_FEATURE_HAS_EFP_DOUBLE         = 0x00200000;
+  enum PPC_FEATURE_NO_TB                  = 0x00100000;
+  enum PPC_FEATURE_POWER4                 = 0x00080000;
+  enum PPC_FEATURE_POWER5                 = 0x00040000;
+  enum PPC_FEATURE_POWER5_PLUS            = 0x00020000;
+  enum PPC_FEATURE_CELL_BE                = 0x00010000;
+  enum PPC_FEATURE_BOOKE                  = 0x00008000;
+  enum PPC_FEATURE_SMT                    = 0x00004000;
+
+  enum PPC_FEATURE_ICACHE_SNOOP           = 0x00002000;
+  enum PPC_FEATURE_ARCH_2_05              = 0x00001000;
+  enum PPC_FEATURE_PA6T                   = 0x00000800;
+  enum PPC_FEATURE_HAS_DFP                = 0x00000400;
+  enum PPC_FEATURE_POWER6_EXT             = 0x00000200;
+  enum PPC_FEATURE_ARCH_2_06              = 0x00000100;
+  enum PPC_FEATURE_HAS_VSX                = 0x00000080;
+  enum PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040;
+  enum PPC_FEATURE_TRUE_LE                = 0x00000002;
+  enum PPC_FEATURE_PPC_LE                 = 0x00000001;
+
+  enum PPC_FEATURE2_ARCH_2_07             = 0x80000000;
+  enum PPC_FEATURE2_HAS_HTM               = 0x40000000;
+  enum PPC_FEATURE2_HAS_DSCR              = 0x20000000;
+  enum PPC_FEATURE2_HAS_EBB               = 0x10000000;
+  enum PPC_FEATURE2_HAS_ISEL              = 0x08000000;
+  enum PPC_FEATURE2_HAS_TAR               = 0x04000000;
+  enum PPC_FEATURE2_HAS_VEC_CRYPTO        = 0x02000000;
+}
+else version(PPC64)
+{
+  // See https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/powerpc/bits/hwcap.h
+
+  enum PPC_FEATURE_32                     = 0x80000000;
+  enum PPC_FEATURE_64                     = 0x40000000;
+  enum PPC_FEATURE_601_INSTR              = 0x20000000;
+  enum PPC_FEATURE_HAS_ALTIVEC            = 0x10000000;
+  enum PPC_FEATURE_HAS_FPU                = 0x08000000;
+  enum PPC_FEATURE_HAS_MMU                = 0x04000000;
+  enum PPC_FEATURE_HAS_4xxMAC             = 0x02000000;
+  enum PPC_FEATURE_UNIFIED_CACHE          = 0x01000000;
+  enum PPC_FEATURE_HAS_SPE                = 0x00800000;
+  enum PPC_FEATURE_HAS_EFP_SINGLE         = 0x00400000;
+  enum PPC_FEATURE_HAS_EFP_DOUBLE         = 0x00200000;
+  enum PPC_FEATURE_NO_TB                  = 0x00100000;
+  enum PPC_FEATURE_POWER4                 = 0x00080000;
+  enum PPC_FEATURE_POWER5                 = 0x00040000;
+  enum PPC_FEATURE_POWER5_PLUS            = 0x00020000;
+  enum PPC_FEATURE_CELL_BE                = 0x00010000;
+  enum PPC_FEATURE_BOOKE                  = 0x00008000;
+  enum PPC_FEATURE_SMT                    = 0x00004000;
+
+  enum PPC_FEATURE_ICACHE_SNOOP           = 0x00002000;
+  enum PPC_FEATURE_ARCH_2_05              = 0x00001000;
+  enum PPC_FEATURE_PA6T                   = 0x00000800;
+  enum PPC_FEATURE_HAS_DFP                = 0x00000400;
+  enum PPC_FEATURE_POWER6_EXT             = 0x00000200;
+  enum PPC_FEATURE_ARCH_2_06              = 0x00000100;
+  enum PPC_FEATURE_HAS_VSX                = 0x00000080;
+  enum PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040;
+  enum PPC_FEATURE_TRUE_LE                = 0x00000002;
+  enum PPC_FEATURE_PPC_LE                 = 0x00000001;
+
+  enum PPC_FEATURE2_ARCH_2_07             = 0x80000000;
+  enum PPC_FEATURE2_HAS_HTM               = 0x40000000;
+  enum PPC_FEATURE2_HAS_DSCR              = 0x20000000;
+  enum PPC_FEATURE2_HAS_EBB               = 0x10000000;
+  enum PPC_FEATURE2_HAS_ISEL              = 0x08000000;
+  enum PPC_FEATURE2_HAS_TAR               = 0x04000000;
+  enum PPC_FEATURE2_HAS_VEC_CRYPTO        = 0x02000000;
+}
+else version(SPARC)
+{
+  // See https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/sparc/bits/hwcap.h
+
+  enum HWCAP_SPARC_FLUSH                  = 0x00000001;
+  enum HWCAP_SPARC_STBAR                  = 0x00000002;
+  enum HWCAP_SPARC_SWAP                   = 0x00000004;
+  enum HWCAP_SPARC_MULDIV                 = 0x00000008;
+  enum HWCAP_SPARC_V9                     = 0x00000010;
+  enum HWCAP_SPARC_ULTRA3                 = 0x00000020;
+  enum HWCAP_SPARC_BLKINIT                = 0x00000040;
+  enum HWCAP_SPARC_N2                     = 0x00000080;
+  enum HWCAP_SPARC_MUL32                  = 0x00000100;
+  enum HWCAP_SPARC_DIV32                  = 0x00000200;
+  enum HWCAP_SPARC_FSMULD                 = 0x00000400;
+  enum HWCAP_SPARC_V8PLUS                 = 0x00000800;
+  enum HWCAP_SPARC_POPC                   = 0x00001000;
+  enum HWCAP_SPARC_VIS                    = 0x00002000;
+  enum HWCAP_SPARC_VIS2                   = 0x00004000;
+  enum HWCAP_SPARC_ASI_BLK_INIT           = 0x00008000;
+  enum HWCAP_SPARC_FMAF                   = 0x00010000;
+  enum HWCAP_SPARC_VIS3                   = 0x00020000;
+  enum HWCAP_SPARC_HPC                    = 0x00040000;
+  enum HWCAP_SPARC_RANDOM                 = 0x00080000;
+  enum HWCAP_SPARC_TRANS                  = 0x00100000;
+  enum HWCAP_SPARC_FJFMAU                 = 0x00200000;
+  enum HWCAP_SPARC_IMA                    = 0x00400000;
+  enum HWCAP_SPARC_ASI_CACHE_SPARING      = 0x00800000;
+  enum HWCAP_SPARC_PAUSE                  = 0x01000000;
+  enum HWCAP_SPARC_CBCOND                 = 0x02000000;
+  enum HWCAP_SPARC_CRYPTO                 = 0x04000000;
+}
+else version(SPARC64)
+{
+  // See https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/sparc/bits/hwcap.h
+
+  enum HWCAP_SPARC_FLUSH                  = 0x00000001;
+  enum HWCAP_SPARC_STBAR                  = 0x00000002;
+  enum HWCAP_SPARC_SWAP                   = 0x00000004;
+  enum HWCAP_SPARC_MULDIV                 = 0x00000008;
+  enum HWCAP_SPARC_V9                     = 0x00000010;
+  enum HWCAP_SPARC_ULTRA3                 = 0x00000020;
+  enum HWCAP_SPARC_BLKINIT                = 0x00000040;
+  enum HWCAP_SPARC_N2                     = 0x00000080;
+  enum HWCAP_SPARC_MUL32                  = 0x00000100;
+  enum HWCAP_SPARC_DIV32                  = 0x00000200;
+  enum HWCAP_SPARC_FSMULD                 = 0x00000400;
+  enum HWCAP_SPARC_V8PLUS                 = 0x00000800;
+  enum HWCAP_SPARC_POPC                   = 0x00001000;
+  enum HWCAP_SPARC_VIS                    = 0x00002000;
+  enum HWCAP_SPARC_VIS2                   = 0x00004000;
+  enum HWCAP_SPARC_ASI_BLK_INIT           = 0x00008000;
+  enum HWCAP_SPARC_FMAF                   = 0x00010000;
+  enum HWCAP_SPARC_VIS3                   = 0x00020000;
+  enum HWCAP_SPARC_HPC                    = 0x00040000;
+  enum HWCAP_SPARC_RANDOM                 = 0x00080000;
+  enum HWCAP_SPARC_TRANS                  = 0x00100000;
+  enum HWCAP_SPARC_FJFMAU                 = 0x00200000;
+  enum HWCAP_SPARC_IMA                    = 0x00400000;
+  enum HWCAP_SPARC_ASI_CACHE_SPARING      = 0x00800000;
+  enum HWCAP_SPARC_PAUSE                  = 0x01000000;
+  enum HWCAP_SPARC_CBCOND                 = 0x02000000;
+  enum HWCAP_SPARC_CRYPTO                 = 0x04000000;
+}
diff --git a/win32.mak b/win32.mak
@@ -464,6 +464,9 @@ $(IMPDIR)\core\sys\linux\tipc.d : src\core\sys\linux\tipc.d
 $(IMPDIR)\core\sys\linux\unistd.d : src\core\sys\linux\unistd.d
 	copy $** $@
 
+$(IMPDIR)\core\sys\linux\sys\auxv.d : src\core\sys\linux\sys\auxv.d
+	copy $** $@
+
 $(IMPDIR)\core\sys\linux\sys\inotify.d : src\core\sys\linux\sys\inotify.d
 	copy $** $@
 

diff --git a/win64.mak b/win64.mak
@@ -472,6 +472,9 @@ $(IMPDIR)\core\sys\linux\tipc.d : src\core\sys\linux\tipc.d
 $(IMPDIR)\core\sys\linux\unistd.d : src\core\sys\linux\unistd.d
 	copy $** $@
 
+$(IMPDIR)\core\sys\linux\sys\auxv.d : src\core\sys\linux\sys\auxv.d
+	copy $** $@
+
 $(IMPDIR)\core\sys\linux\sys\inotify.d : src\core\sys\linux\sys\inotify.d
 	copy $** $@