diff options
Diffstat (limited to 'libpthread')
| -rw-r--r-- | libpthread/nptl/compat/dl-sysdep.h | 35 | ||||
| -rw-r--r-- | libpthread/nptl/compat/libc-internal.h | 37 | ||||
| -rw-r--r-- | libpthread/nptl/compat/libc-symbols.h | 154 | ||||
| -rw-r--r-- | libpthread/nptl/compat/shlib-compat.h | 89 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/hp-timing.h | 83 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/kernel-features.h | 442 |
6 files changed, 840 insertions, 0 deletions
diff --git a/libpthread/nptl/compat/dl-sysdep.h b/libpthread/nptl/compat/dl-sysdep.h new file mode 100644 index 000000000..c99fd3ea3 --- /dev/null +++ b/libpthread/nptl/compat/dl-sysdep.h @@ -0,0 +1,35 @@ +/* System-specific settings for dynamic linker code. Generic version. + Copyright (C) 2002, 2003, 2005 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. */ + +/* No multiple inclusion protection need here because it's just macros. + We don't want to use _DL_SYSDEP_H in case we are #include_next'd. */ + +/* This macro must be defined to either 0 or 1. + + If 1, then an errno global variable hidden in ld.so will work right with + all the errno-using libc code compiled for ld.so, and there is never a + need to share the errno location with libc. This is appropriate only if + all the libc functions that ld.so uses are called without PLT and always + get the versions linked into ld.so rather than the libc ones. */ + +#ifdef IS_IN_rtld +# define RTLD_PRIVATE_ERRNO 1 +#else +# define RTLD_PRIVATE_ERRNO 0 +#endif diff --git a/libpthread/nptl/compat/libc-internal.h b/libpthread/nptl/compat/libc-internal.h new file mode 100644 index 000000000..e5fd5337a --- /dev/null +++ b/libpthread/nptl/compat/libc-internal.h @@ -0,0 +1,37 @@ +/* This file contains a number of internal prototype declarations that + don't fit anywhere else. */ + +#ifndef _LIBC_INTERNAL +# define _LIBC_INTERNAL 1 + +#include <hp-timing.h> + +/* Initialize the `__libc_enable_secure' flag. */ +extern void __libc_init_secure (void); + +/* This function will be called from _init in init-first.c. */ +extern void __libc_global_ctors (void); + +/* Discover the tick frequency of the machine if something goes wrong, + we return 0, an impossible hertz. */ +extern int __profile_frequency (void); +libc_hidden_proto (__profile_frequency) + +/* Hooks for the instrumenting functions. */ +extern void __cyg_profile_func_enter (void *this_fn, void *call_site); +extern void __cyg_profile_func_exit (void *this_fn, void *call_site); + +/* Get frequency of the system processor. */ +extern hp_timing_t __get_clockfreq (void); + +/* Free all allocated resources. */ +extern void __libc_freeres (void); +libc_hidden_proto (__libc_freeres) + +/* Free resources stored in thread-local variables on thread exit. */ +extern void __libc_thread_freeres (void); + +/* Define and initialize `__progname' et. al. */ +extern void __init_misc (int, char **, char **); + +#endif /* _LIBC_INTERNAL */ diff --git a/libpthread/nptl/compat/libc-symbols.h b/libpthread/nptl/compat/libc-symbols.h new file mode 100644 index 000000000..f2db6a416 --- /dev/null +++ b/libpthread/nptl/compat/libc-symbols.h @@ -0,0 +1,154 @@ +#ifndef _LIBC_SYMBOLS_H +#define _LIBC_SYMBOLS_H 1 + +/* + * NPTL - These definitions were taken from 'include/libc-symbols.h' + * in glibc. We are going to use the empty macros for now + * until we run into other compile errors that force us to + * do otherwise. + */ +#if 0 +# ifndef __ASSEMBLER__ +# if !defined HAVE_VISIBILITY_ATTRIBUTE \ + || defined HAVE_BROKEN_VISIBILITY_ATTRIBUTE +# define __hidden_proto_hiddenattr(attrs...) +# else +# define __hidden_proto_hiddenattr(attrs...) \ + __attribute__ ((visibility ("hidden"), ##attrs)) +# endif +# define hidden_proto(name, attrs...) \ + __hidden_proto (name, __GI_##name, ##attrs) +# define __hidden_proto(name, internal, attrs...) \ + extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \ + __hidden_proto_hiddenattr (attrs); +# define __hidden_asmname(name) \ + __hidden_asmname1 (__USER_LABEL_PREFIX__, name) +# define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name) +# define __hidden_asmname2(prefix, name) #prefix name +# define __hidden_ver1(local, internal, name) \ + extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \ + extern __typeof (name) __EI_##name \ + __attribute__((alias (__hidden_asmname (#local)))) +# define hidden_ver(local, name) __hidden_ver1(local, __GI_##name, name); +# define hidden_data_ver(local, name) hidden_ver(local, name) +# define hidden_def(name) __hidden_ver1(__GI_##name, name, name); +# define hidden_data_def(name) hidden_def(name) +# define hidden_weak(name) \ + __hidden_ver1(__GI_##name, name, name) __attribute__((weak)); +# define hidden_data_weak(name) hidden_weak(name) +# else +/* For assembly, we need to do the opposite of what we do in C: + in assembly gcc __REDIRECT stuff is not in place, so functions + are defined by its normal name and we need to create the + __GI_* alias to it, in C __REDIRECT causes the function definition + to use __GI_* name and we need to add alias to the real name. + There is no reason to use hidden_weak over hidden_def in assembly, + but we provide it for consistency with the C usage. + hidden_proto doesn't make sense for assembly but the equivalent + is to call via the HIDDEN_JUMPTARGET macro instead of JUMPTARGET. */ +# define hidden_def(name) strong_alias (name, __GI_##name) +# define hidden_weak(name) hidden_def (name) +# define hidden_ver(local, name) strong_alias (local, __GI_##name) +# define hidden_data_def(name) strong_data_alias (name, __GI_##name) +# define hidden_data_weak(name) hidden_data_def (name) +# define hidden_data_ver(local, name) strong_data_alias (local, __GI_##name) +# ifdef HAVE_ASM_GLOBAL_DOT_NAME +# define HIDDEN_JUMPTARGET(name) .__GI_##name +# else +# define HIDDEN_JUMPTARGET(name) __GI_##name +# endif +# endif +#else +# ifndef __ASSEMBLER__ +# define hidden_proto(name, attrs...) +# else +# define HIDDEN_JUMPTARGET(name) JUMPTARGET(name) +# endif /* Not __ASSEMBLER__ */ +# define hidden_weak(name) +# define hidden_def(name) +# define hidden_ver(local, name) +# define hidden_data_weak(name) +# define hidden_data_def(name) +# define hidden_data_ver(local, name) +#endif + +#if defined NOT_IN_libc && defined IS_IN_rtld +# define rtld_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define rtld_hidden_def(name) hidden_def (name) +# define rtld_hidden_weak(name) hidden_weak (name) +# define rtld_hidden_ver(local, name) hidden_ver (local, name) +# define rtld_hidden_data_def(name) hidden_data_def (name) +# define rtld_hidden_data_weak(name) hidden_data_weak (name) +# define rtld_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define rtld_hidden_proto(name, attrs...) +# define rtld_hidden_def(name) +# define rtld_hidden_weak(name) +# define rtld_hidden_ver(local, name) +# define rtld_hidden_data_def(name) +# define rtld_hidden_data_weak(name) +# define rtld_hidden_data_ver(local, name) +#endif + +#if !defined NOT_IN_libc +# define libc_hidden_proto(name, attrs...) hidden_proto (name, ##attrs) +# define libc_hidden_def(name) hidden_def (name) +# define libc_hidden_weak(name) hidden_weak (name) +# define libc_hidden_ver(local, name) hidden_ver (local, name) +# define libc_hidden_data_def(name) hidden_data_def (name) +# define libc_hidden_data_weak(name) hidden_data_weak (name) +# define libc_hidden_data_ver(local, name) hidden_data_ver (local, name) +#else +# define libc_hidden_proto(name, attrs...) +# define libc_hidden_def(name) +# define libc_hidden_weak(name) +# define libc_hidden_ver(local, name) +# define libc_hidden_data_def(name) +# define libc_hidden_data_weak(name) +# define libc_hidden_data_ver(local, name) +#endif + +#ifdef HAVE_TLS_MODEL_ATTRIBUTE +# define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec"))) +#else +# define attribute_tls_model_ie +#endif + +#ifdef HAVE_Z_RELRO +# define attribute_relro __attribute__ ((section (".data.rel.ro"))) +#else +# define attribute_relro +#endif + +/* Define SET as a symbol set. This may be required (it is in a.out) to + be able to use the set's contents. */ +# define symbol_set_define(set) symbol_set_declare(set) + +/* Declare SET for use in this module, if defined in another module. + In a shared library, this is always local to that shared object. + For static linking, the set might be wholly absent and so we use + weak references. */ +# define symbol_set_declare(set) \ + extern char const __start_##set[] __symbol_set_attribute; \ + extern char const __stop_##set[] __symbol_set_attribute; + +# define __symbol_set_attribute attribute_hidden + +/* Return a pointer (void *const *) to the first element of SET. */ +# define symbol_set_first_element(set) ((void *const *) (&__start_##set)) + +/* Return true iff PTR (a void *const *) has been incremented + past the last element in SET. */ +# define symbol_set_end_p(set, ptr) ((ptr) >= (void *const *) &__stop_##set) + +/* Not compiling ELF shared libraries at all, so never any old versions. */ +# define SHLIB_COMPAT(lib, introduced, obsoleted) 0 + +/* No versions to worry about, just make this the global definition. */ +# define versioned_symbol(lib, local, symbol, version) \ + weak_alias (local, symbol) + +/* This should not appear outside `#if SHLIB_COMPAT (...)'. */ +# define compat_symbol(lib, local, symbol, version) ... + +#endif /* _LIBC_SYMBOLS_H */ diff --git a/libpthread/nptl/compat/shlib-compat.h b/libpthread/nptl/compat/shlib-compat.h new file mode 100644 index 000000000..1e6d1782d --- /dev/null +++ b/libpthread/nptl/compat/shlib-compat.h @@ -0,0 +1,89 @@ +/* Macros for managing ABI-compatibility definitions using ELF symbol versions. + Copyright (C) 2000, 2002 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 _SHLIB_COMPAT_H +#define _SHLIB_COMPAT_H 1 + +#if defined HAVE_ELF && defined DO_VERSIONING +/* Since there is just one set of .d files generated, we need to + include this unconditionally to have the dependency noticed properly. */ +#include <abi-versions.h> /* header generated by abi-versions.awk */ +#endif + +#if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING + +/* The file abi-versions.h (generated by scripts/abi-versions.awk) defines + symbols like `ABI_libm_GLIBC_2_0' for each version set in the source + code for each library. For a version set that is subsumed by a later + version set, the definition gives the subsuming set, i.e. if GLIBC_2_0 + is subsumed by GLIBC_2_1, then ABI_libm_GLIBC_2_0 == ABI_libm_GLIBC_2_1. + Each version set that is to be distinctly defined in the output has an + unique positive integer value, increasing with newer versions. Thus, + evaluating two ABI_* symbols reduces to integer values that differ only + when the two version sets named are in fact two different ABIs we are + supporting. If these do not differ, then there is no need to compile in + extra code to support this version set where it has been superseded by a + newer version. The compatibility code should be conditionalized with + e.g. `#if SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_2)' for code introduced + in the GLIBC_2.0 version and obsoleted in the GLIBC_2.2 version. */ + +# define SHLIB_COMPAT(lib, introduced, obsoleted) \ + ((IS_IN_##lib - 0) \ + && (!(ABI_##lib##_##obsoleted - 0) \ + || ((ABI_##lib##_##introduced - 0) < (ABI_##lib##_##obsoleted - 0)))) + +# ifndef NOT_IN_libc +# define IS_IN_libc 1 +# endif + +/* That header also defines symbols like `VERSION_libm_GLIBC_2_1' to + the version set name to use for e.g. symbols first introduced into + libm in the GLIBC_2.1 version. Definitions of symbols with explicit + versions should look like: + versioned_symbol (libm, new_foo, foo, GLIBC_2_1); + This will define the symbol `foo' with the appropriate default version, + i.e. either GLIBC_2.1 or the "earliest version" specified in + shlib-versions if that is newer. */ + +# define versioned_symbol(lib, local, symbol, version) \ + versioned_symbol_1 (local, symbol, VERSION_##lib##_##version) +# define versioned_symbol_1(local, symbol, name) \ + default_symbol_version (local, symbol, name) + +# define compat_symbol(lib, local, symbol, version) \ + compat_symbol_1 (local, symbol, VERSION_##lib##_##version) +# define compat_symbol_1(local, symbol, name) \ + symbol_version (local, symbol, name) + +#else + +/* Not compiling ELF shared libraries at all, so never any old versions. */ +# define SHLIB_COMPAT(lib, introduced, obsoleted) 0 + +/* No versions to worry about, just make this the global definition. */ +# define versioned_symbol(lib, local, symbol, version) \ + weak_alias (local, symbol) + +/* This should not appear outside `#if SHLIB_COMPAT (...)'. */ +# define compat_symbol(lib, local, symbol, version) ... + +#endif + + +#endif /* shlib-compat.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/hp-timing.h b/libpthread/nptl/sysdeps/unix/sysv/linux/hp-timing.h new file mode 100644 index 000000000..099342db8 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/hp-timing.h @@ -0,0 +1,83 @@ +/* High precision, low overhead timing functions. Generic version. + Copyright (C) 1998, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + + 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 _HP_TIMING_H +#define _HP_TIMING_H 1 + + +/* There are no generic definitions for the times. We could write something + using the `gettimeofday' system call where available but the overhead of + the system call might be too high. + + In case a platform supports timers in the hardware the following macros + and types must be defined: + + - HP_TIMING_AVAIL: test for availability. + + - HP_TIMING_INLINE: this macro is non-zero if the functionality is not + implemented using function calls but instead uses some inlined code + which might simply consist of a few assembler instructions. We have to + know this since we might want to use the macros here in places where we + cannot make function calls. + + - hp_timing_t: This is the type for variables used to store the time + values. + + - HP_TIMING_ZERO: clear `hp_timing_t' object. + + - HP_TIMING_NOW: place timestamp for current time in variable given as + parameter. + + - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the + HP_TIMING_DIFF macro. + + - HP_TIMING_DIFF: compute difference between two times and store it + in a third. Source and destination might overlap. + + - HP_TIMING_ACCUM: add time difference to another variable. This might + be a bit more complicated to implement for some platforms as the + operation should be thread-safe and 64bit arithmetic on 32bit platforms + is not. + + - HP_TIMING_ACCUM_NT: this is the variant for situations where we know + there are no threads involved. + + - HP_TIMING_PRINT: write decimal representation of the timing value into + the given string. This operation need not be inline even though + HP_TIMING_INLINE is specified. + +*/ + +/* Provide dummy definitions. */ +#define HP_TIMING_AVAIL (0) +#define HP_TIMING_INLINE (0) +typedef int hp_timing_t; +#define HP_TIMING_ZERO(Var) +#define HP_TIMING_NOW(var) +#define HP_TIMING_DIFF_INIT() +#define HP_TIMING_DIFF(Diff, Start, End) +#define HP_TIMING_ACCUM(Sum, Diff) +#define HP_TIMING_ACCUM_NT(Sum, Diff) +#define HP_TIMING_PRINT(Buf, Len, Val) + +/* Since this implementation is not available we tell the user about it. */ +#define HP_TIMING_NONAVAIL 1 + +#endif /* hp-timing.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/kernel-features.h b/libpthread/nptl/sysdeps/unix/sysv/linux/kernel-features.h new file mode 100644 index 000000000..ef8240b00 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/kernel-features.h @@ -0,0 +1,442 @@ +/* Set flags signalling availability of kernel features based on given + kernel version number. + Copyright (C) 1999-2003, 2004, 2005 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. */ + +/* This file must not contain any C code. At least it must be protected + to allow using the file also in assembler files. */ + +#if defined __mips__ +# include <sgidefs.h> +#endif + +#if __UCLIBC__ +# include <linux/version.h> +# define __LINUX_KERNEL_VERSION LINUX_VERSION_CODE +#endif + +#ifndef __LINUX_KERNEL_VERSION +/* We assume the worst; all kernels should be supported. */ +# define __LINUX_KERNEL_VERSION 0 +#endif + +/* We assume for __LINUX_KERNEL_VERSION the same encoding used in + linux/version.h. I.e., the major, minor, and subminor all get a + byte with the major number being in the highest byte. This means + we can do numeric comparisons. + + In the following we will define certain symbols depending on + whether the describes kernel feature is available in the kernel + version given by __LINUX_KERNEL_VERSION. We are not always exactly + recording the correct versions in which the features were + introduced. If somebody cares these values can afterwards be + corrected. Most of the numbers here are set corresponding to + 2.2.0. */ + +/* `getcwd' system call. */ +#if __LINUX_KERNEL_VERSION >= 131584 +# define __ASSUME_GETCWD_SYSCALL 1 +#endif + +/* Real-time signal became usable in 2.1.70. */ +#if __LINUX_KERNEL_VERSION >= 131398 +# define __ASSUME_REALTIME_SIGNALS 1 +#endif + +/* When were the `pread'/`pwrite' syscalls introduced? */ +#if __LINUX_KERNEL_VERSION >= 131584 +# define __ASSUME_PREAD_SYSCALL 1 +# define __ASSUME_PWRITE_SYSCALL 1 +#endif + +/* When was `poll' introduced? */ +#if __LINUX_KERNEL_VERSION >= 131584 +# define __ASSUME_POLL_SYSCALL 1 +#endif + +/* The `lchown' syscall was introduced in 2.1.80. */ +#if __LINUX_KERNEL_VERSION >= 131408 +# define __ASSUME_LCHOWN_SYSCALL 1 +#endif + +/* When did the `setresuid' sysall became available? */ +#if __LINUX_KERNEL_VERSION >= 131584 && !defined __sparc__ +# define __ASSUME_SETRESUID_SYSCALL 1 +#endif + +/* The SIOCGIFNAME ioctl is available starting with 2.1.50. */ +#if __LINUX_KERNEL_VERSION >= 131408 +# define __ASSUME_SIOCGIFNAME 1 +#endif + +/* MSG_NOSIGNAL was at least available with Linux 2.2.0. */ +#if __LINUX_KERNEL_VERSION >= 131584 +# define __ASSUME_MSG_NOSIGNAL 1 +#endif + +/* On x86 another `getrlimit' syscall was added in 2.3.25. */ +#if __LINUX_KERNEL_VERSION >= 131865 && defined __i386__ +# define __ASSUME_NEW_GETRLIMIT_SYSCALL 1 +#endif + +/* On x86 the truncate64/ftruncate64 syscalls were introduced in 2.3.31. */ +#if __LINUX_KERNEL_VERSION >= 131871 && defined __i386__ +# define __ASSUME_TRUNCATE64_SYSCALL 1 +#endif + +/* On x86 the mmap2 syscall was introduced in 2.3.31. */ +#if __LINUX_KERNEL_VERSION >= 131871 && defined __i386__ +# define __ASSUME_MMAP2_SYSCALL 1 +#endif + +/* On x86 the stat64/lstat64/fstat64 syscalls were introduced in 2.3.34. */ +#if __LINUX_KERNEL_VERSION >= 131874 && defined __i386__ +# define __ASSUME_STAT64_SYSCALL 1 +#endif + +/* On sparc and ARM the truncate64/ftruncate64/mmap2/stat64/lstat64/fstat64 + syscalls were introduced in 2.3.35. */ +#if __LINUX_KERNEL_VERSION >= 131875 && (defined __sparc__ || defined __arm__) +# define __ASSUME_TRUNCATE64_SYSCALL 1 +# define __ASSUME_MMAP2_SYSCALL 1 +# define __ASSUME_STAT64_SYSCALL 1 +#endif + +/* I know for sure that getrlimit are in 2.3.35 on powerpc. */ +#if __LINUX_KERNEL_VERSION >= 131875 && defined __powerpc__ +# define __ASSUME_NEW_GETRLIMIT_SYSCALL 1 +#endif + +/* I know for sure that these are in 2.3.35 on powerpc. But PowerPC64 does not + support separate 64-bit syscalls, already 64-bit */ +#if __LINUX_KERNEL_VERSION >= 131875 && defined __powerpc__ \ + && !defined __powerpc64__ +# define __ASSUME_TRUNCATE64_SYSCALL 1 +# define __ASSUME_STAT64_SYSCALL 1 +#endif + +/* Linux 2.3.39 introduced 32bit UID/GIDs. Some platforms had 32 + bit type all along. */ +#if __LINUX_KERNEL_VERSION >= 131879 || defined __powerpc__ || defined __mips__ +# define __ASSUME_32BITUIDS 1 +#endif + +/* Linux 2.3.39 sparc added setresuid. */ +#if __LINUX_KERNEL_VERSION >= 131879 && defined __sparc__ +# define __ASSUME_SETRESUID_SYSCALL 1 +#endif + +#if __LINUX_KERNEL_VERSION >= 131879 +# define __ASSUME_SETRESGID_SYSCALL 1 +#endif + +/* Linux 2.3.39 introduced IPC64. Except for powerpc. */ +#if __LINUX_KERNEL_VERSION >= 131879 && !defined __powerpc__ +# define __ASSUME_IPC64 1 +#endif + +/* MIPS platforms had IPC64 all along. */ +#if defined __mips__ +# define __ASSUME_IPC64 1 +#endif + +/* We can use the LDTs for threading with Linux 2.3.99 and newer. */ +#if __LINUX_KERNEL_VERSION >= 131939 +# define __ASSUME_LDT_WORKS 1 +#endif + +/* Linux 2.4.0 on PPC introduced a correct IPC64. But PowerPC64 does not + support a separate 64-bit sys call, already 64-bit */ +#if __LINUX_KERNEL_VERSION >= 132096 && defined __powerpc__ \ + && !defined __powerpc64__ +# define __ASSUME_IPC64 1 +#endif + +/* SH kernels got stat64, mmap2, and truncate64 during 2.4.0-test. */ +#if __LINUX_KERNEL_VERSION >= 132096 && defined __sh__ +# define __ASSUME_TRUNCATE64_SYSCALL 1 +# define __ASSUME_MMAP2_SYSCALL 1 +# define __ASSUME_STAT64_SYSCALL 1 +#endif + +/* The changed st_ino field appeared in 2.4.0-test6. But we cannot + distinguish this version from other 2.4.0 releases. Therefore play + save and assume it available is for 2.4.1 and up. However, SH is lame, + and still does not have a 64-bit inode field. */ +#if __LINUX_KERNEL_VERSION >= 132097 && !defined __alpha__ && !defined __sh__ +# define __ASSUME_ST_INO_64_BIT 1 +#endif + +/* To support locking of large files a new fcntl() syscall was introduced + in 2.4.0-test7. We test for 2.4.1 for the earliest version we know + the syscall is available. */ +#if __LINUX_KERNEL_VERSION >= 132097 && (defined __i386__ || defined __sparc__) +# define __ASSUME_FCNTL64 1 +#endif + +/* The AT_CLKTCK auxiliary vector entry was introduction in the 2.4.0 + series. */ +#if __LINUX_KERNEL_VERSION >= 132097 +# define __ASSUME_AT_CLKTCK 1 +#endif + +/* Arm got fcntl64 in 2.4.4, PowerPC and SH have it also in 2.4.4 (I + don't know when it got introduced). But PowerPC64 does not support + separate FCNTL64 call, FCNTL is already 64-bit */ +#if __LINUX_KERNEL_VERSION >= 132100 \ + && (defined __arm__ || defined __powerpc__ || defined __sh__) \ + && !defined __powerpc64__ +# define __ASSUME_FCNTL64 1 +#endif + +/* The getdents64 syscall was introduced in 2.4.0-test7. We test for + 2.4.1 for the earliest version we know the syscall is available. */ +#if __LINUX_KERNEL_VERSION >= 132097 +# define __ASSUME_GETDENTS64_SYSCALL 1 +#endif + +/* When did O_DIRECTORY became available? Early in 2.3 but when? + Be safe, use 2.3.99. */ +#if __LINUX_KERNEL_VERSION >= 131939 +# define __ASSUME_O_DIRECTORY 1 +#endif + +/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes + up the page size information. */ +#if __LINUX_KERNEL_VERSION >= 132097 +# define __ASSUME_AT_PAGESIZE 1 +#endif + +/* Starting with at least 2.4.0 the kernel passes the uid/gid unconditionally + up to the child. */ +#if __LINUX_KERNEL_VERSION >= 132097 +# define __ASSUME_AT_XID 1 +#endif + +/* Starting with 2.4.5 kernels PPC passes the AUXV in the standard way + and the vfork syscall made it into the official kernel. */ +#if __LINUX_KERNEL_VERSION >= (132096+5) && defined __powerpc__ +# define __ASSUME_STD_AUXV 1 +# define __ASSUME_VFORK_SYSCALL 1 +#endif + +/* Starting with 2.4.5 kernels the mmap2 syscall made it into the official + kernel. But PowerPC64 does not support a separate MMAP2 call. */ +#if __LINUX_KERNEL_VERSION >= (132096+5) && defined __powerpc__ \ + && !defined __powerpc64__ +# define __ASSUME_MMAP2_SYSCALL 1 +#endif + +/* Starting with 2.4.21 PowerPC implements the new prctl syscall. + This allows applications to get/set the Floating Point Exception Mode. */ +#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc__ +# define __ASSUME_NEW_PRCTL_SYSCALL 1 +#endif + +/* Starting with 2.4.21 the PowerPC32 clone syscall works as expected. */ +#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc__ \ + && !defined __powerpc64__ +# define __ASSUME_FIXED_CLONE_SYSCALL 1 +#endif + +/* Starting with 2.4.21 PowerPC64 implements the new rt_sigreturn syscall. + The new rt_sigreturn takes an ucontext pointer allowing rt_sigreturn + to be used in the set/swapcontext implementation. */ +#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__ +# define __ASSUME_NEW_RT_SIGRETURN_SYSCALL 1 +#endif + +/* On x86, the set_thread_area syscall was introduced in 2.5.29, but its + semantics was changed in 2.5.30, and again after 2.5.31. */ +#if __LINUX_KERNEL_VERSION >= 132384 && defined __i386__ +# define __ASSUME_SET_THREAD_AREA_SYSCALL 1 +#endif + +/* The vfork syscall on x86 and arm was definitely available in 2.4. */ +#if __LINUX_KERNEL_VERSION >= 132097 && (defined __i386__ || defined __arm__) +# define __ASSUME_VFORK_SYSCALL 1 +#endif + +/* There are an infinite number of PA-RISC kernel versions numbered + 2.4.0. But they've not really been released as such. We require + and expect the final version here. */ +#ifdef __hppa__ +# define __ASSUME_32BITUIDS 1 +# define __ASSUME_TRUNCATE64_SYSCALL 1 +# define __ASSUME_MMAP2_SYSCALL 1 +# define __ASSUME_STAT64_SYSCALL 1 +# define __ASSUME_IPC64 1 +# define __ASSUME_ST_INO_64_BIT 1 +# define __ASSUME_FCNTL64 1 +# define __ASSUME_GETDENTS64_SYSCALL 1 +#endif + +/* Alpha switched to a 64-bit timeval sometime before 2.2.0. */ +#if __LINUX_KERNEL_VERSION >= 131584 && defined __alpha__ +# define __ASSUME_TIMEVAL64 1 +#endif + +#if defined __mips__ && _MIPS_SIM == _ABIN32 +# define __ASSUME_FCNTL64 1 +#endif + +/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize + their availability with one define. The changes were made first + for i386 and the have to be done separately for the other archs. + For i386 we pick 2.5.50 as the first version with support. */ +#if __LINUX_KERNEL_VERSION >= 132402 && defined __i386__ +# define __ASSUME_CLONE_THREAD_FLAGS 1 +#endif + +/* These features were surely available with 2.4.12. */ +#if __LINUX_KERNEL_VERSION >= 132108 && defined __mc68000__ +# define __ASSUME_MMAP2_SYSCALL 1 +# define __ASSUME_TRUNCATE64_SYSCALL 1 +# define __ASSUME_STAT64_SYSCALL 1 +# define __ASSUME_FCNTL64 1 +# define __ASSUME_VFORK_SYSCALL 1 +#endif + +/* Beginning with 2.5.63 support for realtime and monotonic clocks and + timers based on them is available. */ +#if __LINUX_KERNEL_VERSION >= 132415 +# define __ASSUME_POSIX_TIMERS 1 +#endif + +/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize + their availability with one define. The changes were made first + for i386 and the have to be done separately for the other archs. + For ia64, s390*, PPC, x86-64 we pick 2.5.64 as the first version + with support. */ +#if __LINUX_KERNEL_VERSION >= 132416 \ + && (defined __ia64__ || defined __s390__ || defined __powerpc__ \ + || defined __x86_64__ || defined __sh__) +# define __ASSUME_CLONE_THREAD_FLAGS 1 +#endif + +/* With kernel 2.4.17 we always have netlink support. */ +#if __LINUX_KERNEL_VERSION >= (132096+17) +# define __ASSUME_NETLINK_SUPPORT 1 +#endif + +/* The requeue futex functionality was introduced in 2.5.70. */ +#if __LINUX_KERNEL_VERSION >= 132422 +# define __ASSUME_FUTEX_REQUEUE 1 +#endif + +/* The statfs64 syscalls are available in 2.5.74. */ +#if __LINUX_KERNEL_VERSION >= 132426 +# define __ASSUME_STATFS64 1 +#endif + +/* Starting with at least 2.5.74 the kernel passes the setuid-like exec + flag unconditionally up to the child. */ +#if __LINUX_KERNEL_VERSION >= 132426 +# define __ASSUME_AT_SECURE 1 +#endif + +/* Starting with the 2.5.75 kernel the kernel fills in the correct value + in the si_pid field passed as part of the siginfo_t struct to signal + handlers. */ +#if __LINUX_KERNEL_VERSION >= 132427 +# define __ASSUME_CORRECT_SI_PID 1 +#endif + +/* The tgkill syscall was instroduced for i386 in 2.5.75. For Alpha + it was introduced in 2.6.0-test1 which unfortunately cannot be + distinguished from 2.6.0. On x86-64, ppc, and ppc64 it was + introduced in 2.6.0-test3. */ +#if (__LINUX_KERNEL_VERSION >= 132427 && defined __i386__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __alpha__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __x86_64__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__) +# define __ASSUME_TGKILL 1 +#endif + +/* The utimes syscall has been available for some architectures + forever. For x86 it was introduced after 2.5.75, for x86-64, + ppc, and ppc64 it was introduced in 2.6.0-test3. */ +#if defined __alpha__ || defined __ia64__ || defined __hppa__ \ + || defined __sparc__ \ + || (__LINUX_KERNEL_VERSION > 132427 && defined __i386__) \ + || (__LINUX_KERNEL_VERSION > 132609 && defined __x86_64__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \ + || (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__) +# define __ASSUME_UTIMES 1 +#endif + +// XXX Disabled for now since the semantics we want is not achieved. +#if 0 +/* The CLONE_STOPPED flag was introduced in the 2.6.0-test1 series. */ +#if __LINUX_KERNEL_VERSION >= 132609 +# define __ASSUME_CLONE_STOPPED 1 +#endif +#endif + +/* The fixed version of the posix_fadvise64 syscall appeared in + 2.6.0-test3. At least for x86. Powerpc support appeared in + 2.6.2, but for 32-bit userspace only. */ +#if (__LINUX_KERNEL_VERSION >= 132609 && defined __i386__) \ + || (__LINUX_KERNEL_VERSION >= 132610 && defined __powerpc__ \ + && !defined __powerpc64__) +# define __ASSUME_FADVISE64_64_SYSCALL 1 +#endif + +/* The PROT_GROWSDOWN/PROT_GROWSUP flags were introduced in the 2.6.0-test + series. */ +#if __LINUX_KERNEL_VERSION >= 132609 +# define __ASSUME_PROT_GROWSUPDOWN 1 +#endif + +/* Starting with 2.6.0 PowerPC adds signal/swapcontext support for Vector + SIMD (AKA Altivec, VMX) instructions and register state. This changes + the overall size of the sigcontext and adds the swapcontext syscall. */ +#if __LINUX_KERNEL_VERSION >= 132608 && defined __powerpc__ +# define __ASSUME_SWAPCONTEXT_SYSCALL 1 +#endif + +/* The CLONE_DETACHED flag is not necessary in 2.6.2 kernels, it is + implied. */ +#if __LINUX_KERNEL_VERSION >= 132610 +# define __ASSUME_NO_CLONE_DETACHED 1 +#endif + +/* Starting with version 2.6.4-rc1 the getdents syscall returns d_type + information as well. */ +#if __LINUX_KERNEL_VERSION >= 132612 +# define __ASSUME_GETDENTS32_D_TYPE 1 +#endif + +/* Starting with version 2.5.3, the initial location returned by `brk' + after exec is always rounded up to the next page. */ +#if __LINUX_KERNEL_VERSION >= 132355 +# define __ASSUME_BRK_PAGE_ROUNDED 1 +#endif + +/* Starting with version 2.6.9, the waitid system call is available. + Except for powerpc and powerpc64, where it is available in 2.6.12. */ +#if (__LINUX_KERNEL_VERSION >= 0x020609 && !defined __powerpc__) \ + || (__LINUX_KERNEL_VERSION >= 0x02060c && defined __powerpc__) +# define __ASSUME_WAITID_SYSCALL 1 +#endif + +/* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists. */ +#if __LINUX_KERNEL_VERSION >= 0x020609 && defined __alpha__ +#define __ASSUME_IEEE_RAISE_EXCEPTION 1 +#endif |