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authorJoakim Tjernlund <joakim.tjernlund@transmode.se>2007-02-12 21:57:57 +0000
committerJoakim Tjernlund <joakim.tjernlund@transmode.se>2007-02-12 21:57:57 +0000
commitdcf241189ab7eb060aeb06caad8b14aa964f6736 (patch)
tree735c06c0036aed160a35e9c0e2870e87fe5730e5 /libc/sysdeps/linux/powerpc/bits
parent216bfd092c46dc0479e571a37fd2fd96e47605b5 (diff)
Rehash the PowerPC e500 port to avoid creating symlinks
in the powerpc arch code and make more code common with classic PowerPC. From Steve Papacharalambous Lets hope I didn't break something.
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits')
-rw-r--r--libc/sysdeps/linux/powerpc/bits/classic/fenv.h145
-rw-r--r--libc/sysdeps/linux/powerpc/bits/e500/fenv.h79
-rw-r--r--libc/sysdeps/linux/powerpc/bits/e500/fenvinline.h2
-rw-r--r--libc/sysdeps/linux/powerpc/bits/e500/mathdef.h84
-rw-r--r--libc/sysdeps/linux/powerpc/bits/e500/mathinline.h2
-rw-r--r--libc/sysdeps/linux/powerpc/bits/fenvinline.h (renamed from libc/sysdeps/linux/powerpc/bits/classic/fenvinline.h)10
-rw-r--r--libc/sysdeps/linux/powerpc/bits/mathdef.h (renamed from libc/sysdeps/linux/powerpc/bits/classic/mathdef.h)10
-rw-r--r--libc/sysdeps/linux/powerpc/bits/mathinline.h (renamed from libc/sysdeps/linux/powerpc/bits/classic/mathinline.h)10
-rw-r--r--libc/sysdeps/linux/powerpc/bits/sysdep.h301
9 files changed, 329 insertions, 314 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/classic/fenv.h b/libc/sysdeps/linux/powerpc/bits/classic/fenv.h
deleted file mode 100644
index 8509b4b0c..000000000
--- a/libc/sysdeps/linux/powerpc/bits/classic/fenv.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/* Copyright (C) 1997, 1998, 1999 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _FENV_H
-# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
-#endif
-
-
-/* Define bits representing the exception. We use the bit positions of
- the appropriate bits in the FPSCR... */
-enum
- {
- FE_INEXACT = 1 << (31 - 6),
-#define FE_INEXACT FE_INEXACT
- FE_DIVBYZERO = 1 << (31 - 5),
-#define FE_DIVBYZERO FE_DIVBYZERO
- FE_UNDERFLOW = 1 << (31 - 4),
-#define FE_UNDERFLOW FE_UNDERFLOW
- FE_OVERFLOW = 1 << (31 - 3),
-#define FE_OVERFLOW FE_OVERFLOW
-
- /* ... except for FE_INVALID, for which we use bit 31. FE_INVALID
- actually corresponds to bits 7 through 12 and 21 through 23
- in the FPSCR, but we can't use that because the current draft
- says that it must be a power of 2. Instead we use bit 2 which
- is the summary bit for all the FE_INVALID exceptions, which
- kind of makes sense. */
- FE_INVALID = 1 << (31 - 2),
-#define FE_INVALID FE_INVALID
-
-#ifdef __USE_GNU
- /* Breakdown of the FE_INVALID bits. Setting FE_INVALID on an
- input to a routine is equivalent to setting all of these bits;
- FE_INVALID will be set on output from a routine iff one of
- these bits is set. Note, though, that you can't disable or
- enable these exceptions individually. */
-
- /* Operation with SNaN. */
- FE_INVALID_SNAN = 1 << (31 - 7),
-# define FE_INVALID_SNAN FE_INVALID_SNAN
-
- /* Inf - Inf */
- FE_INVALID_ISI = 1 << (31 - 8),
-# define FE_INVALID_ISI FE_INVALID_ISI
-
- /* Inf / Inf */
- FE_INVALID_IDI = 1 << (31 - 9),
-# define FE_INVALID_IDI FE_INVALID_IDI
-
- /* 0 / 0 */
- FE_INVALID_ZDZ = 1 << (31 - 10),
-# define FE_INVALID_ZDZ FE_INVALID_ZDZ
-
- /* Inf * 0 */
- FE_INVALID_IMZ = 1 << (31 - 11),
-# define FE_INVALID_IMZ FE_INVALID_IMZ
-
- /* Comparison with NaN or SNaN. */
- FE_INVALID_COMPARE = 1 << (31 - 12),
-# define FE_INVALID_COMPARE FE_INVALID_COMPARE
-
- /* Invalid operation flag for software (not set by hardware). */
- /* Note that some chips don't have this implemented, presumably
- because no-one expected anyone to write software for them %-). */
- FE_INVALID_SOFTWARE = 1 << (31 - 21),
-# define FE_INVALID_SOFTWARE FE_INVALID_SOFTWARE
-
- /* Square root of negative number (including -Inf). */
- /* Note that some chips don't have this implemented. */
- FE_INVALID_SQRT = 1 << (31 - 22),
-# define FE_INVALID_SQRT FE_INVALID_SQRT
-
- /* Conversion-to-integer of a NaN or a number too large or too small. */
- FE_INVALID_INTEGER_CONVERSION = 1 << (31 - 23)
-# define FE_INVALID_INTEGER_CONVERSION FE_INVALID_INTEGER_CONVERSION
-
-# define FE_ALL_INVALID \
- (FE_INVALID_SNAN | FE_INVALID_ISI | FE_INVALID_IDI | FE_INVALID_ZDZ \
- | FE_INVALID_IMZ | FE_INVALID_COMPARE | FE_INVALID_SOFTWARE \
- | FE_INVALID_SQRT | FE_INVALID_INTEGER_CONVERSION)
-#endif
- };
-
-#define FE_ALL_EXCEPT \
- (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
-
-/* PowerPC chips support all of the four defined rounding modes. We
- use the bit pattern in the FPSCR as the values for the
- appropriate macros. */
-enum
- {
- FE_TONEAREST = 0,
-#define FE_TONEAREST FE_TONEAREST
- FE_TOWARDZERO = 1,
-#define FE_TOWARDZERO FE_TOWARDZERO
- FE_UPWARD = 2,
-#define FE_UPWARD FE_UPWARD
- FE_DOWNWARD = 3
-#define FE_DOWNWARD FE_DOWNWARD
- };
-
-/* Type representing exception flags. */
-typedef unsigned int fexcept_t;
-
-/* Type representing floating-point environment. We leave it as 'double'
- for efficiency reasons (rather than writing it to a 32-bit integer). */
-typedef double fenv_t;
-
-/* If the default argument is used we use this value. */
-extern const fenv_t __fe_dfl_env;
-#define FE_DFL_ENV (&__fe_dfl_env)
-
-#ifdef __USE_GNU
-/* Floating-point environment where all exceptions are enabled. Note that
- this is not sufficient to give you SIGFPE. */
-extern const fenv_t __fe_enabled_env;
-# define FE_ENABLED_ENV (&__fe_enabled_env)
-
-/* Floating-point environment with (processor-dependent) non-IEEE floating
- point. */
-extern const fenv_t __fe_nonieee_env;
-# define FE_NONIEEE_ENV (&__fe_nonieee_env)
-
-/* Floating-point environment with all exceptions enabled. Note that
- just evaluating this value will set the processor into 'FPU
- exceptions imprecise recoverable' mode, which may cause a significant
- performance penalty (but have no other visible effect). */
-extern const fenv_t *__fe_nomask_env (void);
-# define FE_NOMASK_ENV (__fe_nomask_env ())
-#endif
diff --git a/libc/sysdeps/linux/powerpc/bits/e500/fenv.h b/libc/sysdeps/linux/powerpc/bits/e500/fenv.h
deleted file mode 100644
index 41963da38..000000000
--- a/libc/sysdeps/linux/powerpc/bits/e500/fenv.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Copyright (C) 2004 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _FENV_H
-# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
-#endif
-
-
-/* Define bits representing the exception. We use the bit positions of
- the appropriate bits in the SPEFSCR... */
-enum
- {
- FE_INEXACT = 1 << (63 - 42),
-#define FE_INEXACT FE_INEXACT
- FE_INVALID = 1 << (63 - 43),
-#define FE_INVALID FE_INVALID
- FE_DIVBYZERO = 1 << (63 - 44),
-#define FE_DIVBYZERO FE_DIVBYZERO
- FE_UNDERFLOW = 1 << (63 - 45),
-#define FE_UNDERFLOW FE_UNDERFLOW
- FE_OVERFLOW = 1 << (63 - 46)
-#define FE_OVERFLOW FE_OVERFLOW
- };
-
-#define FE_ALL_EXCEPT \
- (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
-
-/* The E500 support all of the four defined rounding modes. We use
- the bit pattern in the SPEFSCR as the values for the appropriate
- macros. */
-enum
- {
- FE_TONEAREST = 0,
-#define FE_TONEAREST FE_TONEAREST
- FE_TOWARDZERO = 1,
-#define FE_TOWARDZERO FE_TOWARDZERO
- FE_UPWARD = 2,
-#define FE_UPWARD FE_UPWARD
- FE_DOWNWARD = 3
-#define FE_DOWNWARD FE_DOWNWARD
- };
-
-/* Type representing exception flags. */
-typedef unsigned int fexcept_t;
-
-typedef double fenv_t;
-
-/* If the default argument is used we use this value. */
-extern const fenv_t __fe_dfl_env;
-#define FE_DFL_ENV (&__fe_dfl_env)
-
-#ifdef __USE_GNU
-/* Floating-point environment where all exceptions are enabled. Note that
- this is not sufficient to give you SIGFPE. */
-extern const fenv_t __fe_enabled_env;
-# define FE_ENABLED_ENV (&__fe_enabled_env)
-
-/* Floating-point environment with all exceptions enabled. Note that
- just evaluating this value will set the processor into 'FPU
- exceptions imprecise recoverable' mode, which may cause a significant
- performance penalty (but have no other visible effect). */
-extern const fenv_t *__fe_nomask_env (void);
-# define FE_NOMASK_ENV (__fe_nomask_env ())
-#endif
diff --git a/libc/sysdeps/linux/powerpc/bits/e500/fenvinline.h b/libc/sysdeps/linux/powerpc/bits/e500/fenvinline.h
deleted file mode 100644
index 8dee09d18..000000000
--- a/libc/sysdeps/linux/powerpc/bits/e500/fenvinline.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* We don't need no stinking inline versions. Life is hard enough as it
- is with this hybrid soft/hard float business. */
diff --git a/libc/sysdeps/linux/powerpc/bits/e500/mathdef.h b/libc/sysdeps/linux/powerpc/bits/e500/mathdef.h
deleted file mode 100644
index 4a698e96c..000000000
--- a/libc/sysdeps/linux/powerpc/bits/e500/mathdef.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Copyright (C) 1997,1998,1999,2000,2003 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#if !defined _MATH_H && !defined _COMPLEX_H
-# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
-#endif
-
-
-/* FIXME! This file describes properties of the compiler, not the machine;
- it should not be part of libc!
-
- FIXME! This file does not deal with the -fshort-double option of
- gcc! */
-
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
-# define _MATH_H_MATHDEF 1
-
-# ifdef __GNUC__
-# if __STDC__ == 1
-
-/* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */
-typedef float float_t; /* `float' expressions are evaluated as
- `float'. */
-typedef double double_t; /* `double' expressions are evaluated as
- `double'. */
-
-/* Define `INFINITY' as value of type `float'. */
-# ifndef __UCLIBC__
-# define INFINITY HUGE_VALF
-# endif
-
-# else
-
-/* For `gcc -traditional', `float' expressions are evaluated as `double'. */
-typedef double float_t; /* `float' expressions are evaluated as
- `double'. */
-typedef double double_t; /* `double' expressions are evaluated as
- `double'. */
-
-/* Define `INFINITY' as value of type `float'. */
-# ifndef __UCLIBC__
-# define INFINITY HUGE_VALF
-# endif
-
-# endif
-# else
-
-/* Wild guess at types for float_t and double_t. */
-typedef double float_t;
-typedef double double_t;
-
-/* Define `INFINITY' as value of type `float'. */
-# ifndef __UCLIBC__
-# define INFINITY HUGE_VALF
-# endif
-
-# endif
-
-/* The values returned by `ilogb' for 0 and NaN respectively. */
-# define FP_ILOGB0 (-2147483647)
-# define FP_ILOGBNAN (2147483647)
-
-#endif /* ISO C99 */
-
-#ifndef __NO_LONG_DOUBLE_MATH
-/* Signal that we do not really have a `long double'. The disables the
- declaration of all the `long double' function variants. */
-# define __NO_LONG_DOUBLE_MATH 1
-#endif
diff --git a/libc/sysdeps/linux/powerpc/bits/e500/mathinline.h b/libc/sysdeps/linux/powerpc/bits/e500/mathinline.h
deleted file mode 100644
index ebd8ec4a3..000000000
--- a/libc/sysdeps/linux/powerpc/bits/e500/mathinline.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* Inline? You've got to be kidding me. We'll take the library functions
- any day. */
diff --git a/libc/sysdeps/linux/powerpc/bits/classic/fenvinline.h b/libc/sysdeps/linux/powerpc/bits/fenvinline.h
index f7700a49e..f7a1a3ac1 100644
--- a/libc/sysdeps/linux/powerpc/bits/classic/fenvinline.h
+++ b/libc/sysdeps/linux/powerpc/bits/fenvinline.h
@@ -18,6 +18,13 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <features.h>
+
+/*
+ * Disable for e500, uses library functions instead of in lines.
+ */
+#ifndef __CONFIG_E500__
+
#if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_MATH_INLINES
/* Inline definition for fegetround. */
@@ -59,3 +66,6 @@
: (feclearexcept) (__excepts))
#endif /* __GNUC__ && !_SOFT_FLOAT */
+
+#endif /* __CONFIG_E500__ */
+
diff --git a/libc/sysdeps/linux/powerpc/bits/classic/mathdef.h b/libc/sysdeps/linux/powerpc/bits/mathdef.h
index a076fb6d7..7c7d9f7d7 100644
--- a/libc/sysdeps/linux/powerpc/bits/classic/mathdef.h
+++ b/libc/sysdeps/linux/powerpc/bits/mathdef.h
@@ -17,6 +17,8 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <features.h>
+
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
@@ -64,6 +66,9 @@ typedef double double_t;
#endif /* ISO C99 */
#ifndef __NO_LONG_DOUBLE_MATH
+#ifdef __CONFIG_E500__
+# define __NO_LONG_DOUBLE_MATH 1
+#else
#include <bits/wordsize.h>
/* Signal that we do not really have a `long double'. The disables the
declaration of all the `long double' function variants. */
@@ -71,5 +76,6 @@ typedef double double_t;
# define __NO_LONG_DOUBLE_MATH 1
# elif !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
# define __NO_LONG_DOUBLE_MATH 1
-# endif
-#endif
+# endif /* __WORDSIZE == 32 */
+# endif /* __CONGIG_E500__ */
+# endif /* __NO_LONG_DOUBLE_MATH */
diff --git a/libc/sysdeps/linux/powerpc/bits/classic/mathinline.h b/libc/sysdeps/linux/powerpc/bits/mathinline.h
index 87985a744..695cc3fab 100644
--- a/libc/sysdeps/linux/powerpc/bits/classic/mathinline.h
+++ b/libc/sysdeps/linux/powerpc/bits/mathinline.h
@@ -18,6 +18,13 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <features.h>
+
+/*
+ * Disable for e500, uses library functions instead of in lines.
+ */
+#ifndef __CONFIG_E500__
+
#ifndef _MATH_H
# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
#endif
@@ -180,3 +187,6 @@ __NTH (__ieee754_sqrtf (float __x))
}
#endif /* __LIBC_INTERNAL_MATH_INLINES */
#endif /* __GNUC__ && !_SOFT_FLOAT */
+
+#endif /* __CONFIG_E500__ */
+
diff --git a/libc/sysdeps/linux/powerpc/bits/sysdep.h b/libc/sysdeps/linux/powerpc/bits/sysdep.h
new file mode 100644
index 000000000..c42efbabd
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/sysdep.h
@@ -0,0 +1,301 @@
+/* Copyright (C) 1992,1997-2003,2004,2005,2006 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _LINUX_POWERPC_SYSDEP_H
+#define _LINUX_POWERPC_SYSDEP_H 1
+
+#include <sysdeps/unix/powerpc/sysdep.h>
+#include <tls.h>
+
+/* Some systen calls got renamed over time, but retained the same semantics.
+ Handle them here so they can be catched by both C and assembler stubs in
+ glibc. */
+
+#ifdef __NR_pread64
+# ifdef __NR_pread
+# error "__NR_pread and __NR_pread64 both defined???"
+# endif
+# define __NR_pread __NR_pread64
+#endif
+
+#ifdef __NR_pwrite64
+# ifdef __NR_pwrite
+# error "__NR_pwrite and __NR_pwrite64 both defined???"
+# endif
+# define __NR_pwrite __NR_pwrite64
+#endif
+
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#ifdef __STDC__
+# define SYS_ify(syscall_name) __NR_##syscall_name
+#else
+# define SYS_ify(syscall_name) __NR_/**/syscall_name
+#endif
+
+#ifndef __ASSEMBLER__
+
+# include <errno.h>
+
+# ifdef SHARED
+# define INLINE_VSYSCALL(name, nr, args...) \
+ ({ \
+ __label__ out; \
+ __label__ iserr; \
+ INTERNAL_SYSCALL_DECL (sc_err); \
+ long int sc_ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
+ goto out; \
+ if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \
+ goto iserr; \
+ } \
+ \
+ sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, ##args); \
+ if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
+ { \
+ iserr: \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
+ sc_ret = -1L; \
+ } \
+ out: \
+ sc_ret; \
+ })
+# else
+# define INLINE_VSYSCALL(name, nr, args...) \
+ INLINE_SYSCALL (name, nr, ##args)
+# endif
+
+# ifdef SHARED
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ ({ \
+ __label__ out; \
+ long int v_ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \
+ || INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \
+ goto out; \
+ } \
+ v_ret = INTERNAL_SYSCALL (name, err, nr, ##args); \
+ out: \
+ v_ret; \
+ })
+# else
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL (name, err, nr, ##args)
+# endif
+
+# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
+ ({ \
+ long int sc_ret = ENOSYS; \
+ \
+ if (__vdso_##name != NULL) \
+ sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ else \
+ err = 1 << 28; \
+ sc_ret; \
+ })
+
+/* List of system calls which are supported as vsyscalls. */
+# define HAVE_CLOCK_GETRES_VSYSCALL 1
+# define HAVE_CLOCK_GETTIME_VSYSCALL 1
+
+/* Define a macro which expands inline into the wrapper code for a VDSO
+ call. This use is for internal calls that do not need to handle errors
+ normally. It will never touch errno.
+ On powerpc a system call basically clobbers the same registers like a
+ function call, with the exception of LR (which is needed for the
+ "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
+ an error return status). */
+# define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, args...) \
+ ({ \
+ register void *r0 __asm__ ("r0"); \
+ register long int r3 __asm__ ("r3"); \
+ register long int r4 __asm__ ("r4"); \
+ register long int r5 __asm__ ("r5"); \
+ register long int r6 __asm__ ("r6"); \
+ register long int r7 __asm__ ("r7"); \
+ register long int r8 __asm__ ("r8"); \
+ register long int r9 __asm__ ("r9"); \
+ register long int r10 __asm__ ("r10"); \
+ register long int r11 __asm__ ("r11"); \
+ register long int r12 __asm__ ("r12"); \
+ LOADARGS_##nr (funcptr, args); \
+ __asm__ __volatile__ \
+ ("mtctr %0\n\t" \
+ "bctrl\n\t" \
+ "mfcr %0" \
+ : "=&r" (r0), \
+ "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
+ "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
+ : ASM_INPUT_##nr \
+ : "cr0", "ctr", "lr", "memory"); \
+ err = (long int) r0; \
+ (int) r3; \
+ })
+
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (sc_err); \
+ long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args); \
+ if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
+ sc_ret = -1L; \
+ } \
+ sc_ret; \
+ })
+
+/* Define a macro which expands inline into the wrapper code for a system
+ call. This use is for internal calls that do not need to handle errors
+ normally. It will never touch errno.
+ On powerpc a system call basically clobbers the same registers like a
+ function call, with the exception of LR (which is needed for the
+ "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
+ an error return status). */
+
+# undef INTERNAL_SYSCALL_DECL
+# define INTERNAL_SYSCALL_DECL(err) long int err
+
+# undef INTERNAL_SYSCALL
+# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+ ({ \
+ register long int r0 __asm__ ("r0"); \
+ register long int r3 __asm__ ("r3"); \
+ register long int r4 __asm__ ("r4"); \
+ register long int r5 __asm__ ("r5"); \
+ register long int r6 __asm__ ("r6"); \
+ register long int r7 __asm__ ("r7"); \
+ register long int r8 __asm__ ("r8"); \
+ register long int r9 __asm__ ("r9"); \
+ register long int r10 __asm__ ("r10"); \
+ register long int r11 __asm__ ("r11"); \
+ register long int r12 __asm__ ("r12"); \
+ LOADARGS_##nr(name, args); \
+ __asm__ __volatile__ \
+ ("sc \n\t" \
+ "mfcr %0" \
+ : "=&r" (r0), \
+ "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
+ "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
+ : ASM_INPUT_##nr \
+ : "cr0", "ctr", "memory"); \
+ err = r0; \
+ (int) r3; \
+ })
+# define INTERNAL_SYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
+
+# undef INTERNAL_SYSCALL_ERROR_P
+# define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((void) (val), __builtin_expect ((err) & (1 << 28), 0))
+
+# undef INTERNAL_SYSCALL_ERRNO
+# define INTERNAL_SYSCALL_ERRNO(val, err) (val)
+
+# define LOADARGS_0(name, dummy) \
+ r0 = name
+# define LOADARGS_1(name, __arg1) \
+ long int arg1 = (long int) (__arg1); \
+ LOADARGS_0(name, 0); \
+ extern void __illegally_sized_syscall_arg1 (void); \
+ if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
+ __illegally_sized_syscall_arg1 (); \
+ r3 = arg1
+# define LOADARGS_2(name, __arg1, __arg2) \
+ long int arg2 = (long int) (__arg2); \
+ LOADARGS_1(name, __arg1); \
+ extern void __illegally_sized_syscall_arg2 (void); \
+ if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
+ __illegally_sized_syscall_arg2 (); \
+ r4 = arg2
+# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
+ long int arg3 = (long int) (__arg3); \
+ LOADARGS_2(name, __arg1, __arg2); \
+ extern void __illegally_sized_syscall_arg3 (void); \
+ if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
+ __illegally_sized_syscall_arg3 (); \
+ r5 = arg3
+# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
+ long int arg4 = (long int) (__arg4); \
+ LOADARGS_3(name, __arg1, __arg2, __arg3); \
+ extern void __illegally_sized_syscall_arg4 (void); \
+ if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
+ __illegally_sized_syscall_arg4 (); \
+ r6 = arg4
+# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
+ long int arg5 = (long int) (__arg5); \
+ LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
+ extern void __illegally_sized_syscall_arg5 (void); \
+ if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
+ __illegally_sized_syscall_arg5 (); \
+ r7 = arg5
+# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
+ long int arg6 = (long int) (__arg6); \
+ LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
+ extern void __illegally_sized_syscall_arg6 (void); \
+ if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
+ __illegally_sized_syscall_arg6 (); \
+ r8 = arg6
+
+# define ASM_INPUT_0 "0" (r0)
+# define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
+# define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
+# define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
+# define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
+# define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
+# define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)
+
+#endif /* __ASSEMBLER__ */
+
+
+/* Pointer mangling support. */
+#if defined NOT_IN_libc && defined IS_IN_rtld
+/* We cannot use the thread descriptor because in ld.so we use setjmp
+ earlier than the descriptor is initialized. */
+#else
+# ifdef __ASSEMBLER__
+# define PTR_MANGLE(reg, tmpreg) \
+ lwz tmpreg,POINTER_GUARD(r2); \
+ xor reg,tmpreg,reg
+# define PTR_MANGLE2(reg, tmpreg) \
+ xor reg,tmpreg,reg
+# define PTR_MANGLE3(destreg, reg, tmpreg) \
+ lwz tmpreg,POINTER_GUARD(r2); \
+ xor destreg,tmpreg,reg
+# define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
+# define PTR_DEMANGLE2(reg, tmpreg) PTR_MANGLE2 (reg, tmpreg)
+# define PTR_DEMANGLE3(destreg, reg, tmpreg) PTR_MANGLE3 (destreg, reg, tmpreg)
+# else
+# define PTR_MANGLE(var) \
+ (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
+# define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#endif
+
+#endif /* linux/powerpc/powerpc32/sysdep.h */