diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/bits/resource.h | 227 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/getrlimit.c | 84 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/getrlimit64.c | 28 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c | 53 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/oldsetrlimit64.c | 52 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/setrlimit.c | 82 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/setrlimit64.c | 28 |
7 files changed, 554 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/bits/resource.h b/sysdeps/unix/sysv/linux/i386/bits/resource.h new file mode 100644 index 0000000000..fcff605892 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/bits/resource.h @@ -0,0 +1,227 @@ +/* Bit values & structures for resource limits. Linux version. + Copyright (C) 1994, 1996, 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_RESOURCE_H +# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." +#endif + +#include <asm/resource.h> +#include <bits/types.h> + +/* Transmute defines to enumerations. The macro re-definitions are + necessary because some programs want to test for operating system + features with #ifdef RUSAGE_SELF. In ISO C the reflexive + definition is a no-op. */ + +/* Kinds of resource limit. */ +enum __rlimit_resource +{ + /* Per-process CPU limit, in seconds. */ + _RLIMIT_CPU = RLIMIT_CPU, +#undef RLIMIT_CPU + RLIMIT_CPU = _RLIMIT_CPU, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + _RLIMIT_FSIZE = RLIMIT_FSIZE, +#undef RLIMIT_FSIZE + RLIMIT_FSIZE = _RLIMIT_FSIZE, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + _RLIMIT_DATA = RLIMIT_DATA, +#undef RLIMIT_DATA + RLIMIT_DATA = _RLIMIT_DATA, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + _RLIMIT_STACK = RLIMIT_STACK, +#undef RLIMIT_STACK + RLIMIT_STACK = _RLIMIT_STACK, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + _RLIMIT_CORE = RLIMIT_CORE, +#undef RLIMIT_CORE + RLIMIT_CORE = _RLIMIT_CORE, +#define RLIMIT_CORE RLIMIT_CORE + + /* Largest resident set size, in bytes. + This affects swapping; processes that are exceeding their + resident set size will be more likely to have physical memory + taken from them. */ + _RLIMIT_RSS = RLIMIT_RSS, +#undef RLIMIT_RSS + RLIMIT_RSS = _RLIMIT_RSS, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + _RLIMIT_NOFILE = RLIMIT_NOFILE, +#undef RLIMIT_NOFILE + RLIMIT_NOFILE = _RLIMIT_NOFILE, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit (?) */ + _RLIMIT_AS = RLIMIT_AS, +#undef RLIMIT_AS + RLIMIT_AS = _RLIMIT_AS, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + _RLIMIT_NPROC = RLIMIT_NPROC, +#undef RLIMIT_NPROC + RLIMIT_NPROC = _RLIMIT_NPROC, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + _RLIMIT_MEMLOCK = RLIMIT_MEMLOCK, +#undef RLIMIT_MEMLOCK + RLIMIT_MEMLOCK = _RLIMIT_MEMLOCK, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + RLIMIT_NLIMITS = RLIM_NLIMITS, +#undef RLIM_NLIMITS + RLIM_NLIMITS = RLIMIT_NLIMITS +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS +}; + +/* Value to indicate that there is no limit. */ +#ifndef __USE_FILE_OFFSET64 +# define RLIM_INFINITY ((unsigned long int)(~0UL)) +#else +# define RLIM_INFINITY 0xffffffffffffffffuLL +#endif + +#ifdef __USE_LARGEFILE64 +# define RLIM64_INFINITY 0xffffffffffffffffuLL +#endif + +/* We can represent all limits. */ +#define RLIM_SAVED_MAX RLIM_INFINITY +#define RLIM_SAVED_CUR RLIM_INFINITY + + +/* Type for resource quantity measurement. */ +#ifndef __USE_FILE_OFFSET64 +typedef __rlim_t rlim_t; +#else +typedef __rlim64_t rlim_t; +#endif +#ifdef __USE_LARGEFILE64 +typedef __rlim64_t rlim64_t; +#endif + +struct rlimit + { + /* The current (soft) limit. */ + rlim_t rlim_cur; + /* The hard limit. */ + rlim_t rlim_max; + }; + +#ifdef __USE_LARGEFILE64 +struct rlimit64 + { + /* The current (soft) limit. */ + rlim64_t rlim_cur; + /* The hard limit. */ + rlim64_t rlim_max; + }; +#endif + +/* Whose usage statistics do you want? */ +enum __rusage_who +{ + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1, +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#define __need_timeval +#include <bits/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +struct rusage + { + /* Total amount of user time used. */ + struct timeval ru_utime; + /* Total amount of system time used. */ + struct timeval ru_stime; + /* Maximum resident set size (in kilobytes). */ + long int ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long int ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long int ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long int ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long int ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long int ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long int ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long int ru_inblock; + /* Number of output operations via the file system. */ + long int ru_oublock; + /* Number of IPC messages sent. */ + long int ru_msgsnd; + /* Number of IPC messages received. */ + long int ru_msgrcv; + /* Number of signals delivered. */ + long int ru_nsignals; + /* Number of voluntary context switches, i.e. because the process + gave up the process before it had to (usually to wait for some + resource to be available). */ + long int ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long int ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which +{ + PRIO_PROCESS = 0, /* WHO is a process ID. */ +#define PRIO_PROCESS PRIO_PROCESS + PRIO_PGRP = 1, /* WHO is a process group ID. */ +#define PRIO_PGRP PRIO_PGRP + PRIO_USER = 2 /* WHO is a user ID. */ +#define PRIO_USER PRIO_USER +}; diff --git a/sysdeps/unix/sysv/linux/i386/getrlimit.c b/sysdeps/unix/sysv/linux/i386/getrlimit.c new file mode 100644 index 0000000000..14a879c5df --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/getrlimit.c @@ -0,0 +1,84 @@ +/* Copyright (C) 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <sys/resource.h> + +#include <sysdep.h> +#include <sys/syscall.h> + +#include "kernel-features.h" + +extern int __syscall_ugetrlimit (unsigned int resource, + struct rlimit *rlimits); +extern int __syscall_getrlimit (unsigned int resource, struct rlimit *rlimits); + +/* Linux 2.3.25 introduced a new system call since the types used for + the limits are now unsigned. */ +#if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL +int __have_no_new_getrlimit; +#endif + +int +__new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits) +{ +#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL + return INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits); +#else + int result; + +# ifdef __NR_ugetrlimit + if (__have_no_new_getrlimit <= 0) + { + result = INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits); + + /* If the system call is available remember this fact and return. */ + if (result != -1 || errno != ENOSYS) + { + __have_no_new_getrlimit = -1; + return result; + } + + /* Remember that the system call is not available. */ + __have_no_new_getrlimit = 1; + } +# endif + + /* Fall back to the old system call. */ + result = INLINE_SYSCALL (getrlimit, 2, resource, rlimits); + + if (result == -1) + return result; + + /* We might have to correct the limits values. Since the old values + were signed the infinity value is too small. */ + if (rlimits->rlim_cur == RLIM_INFINITY >> 1) + rlimits->rlim_cur = RLIM_INFINITY; + if (rlimits->rlim_max == RLIM_INFINITY >> 1) + rlimits->rlim_max = RLIM_INFINITY; + + return result; +#endif +} + +weak_alias (__new_getrlimit, __getrlimit); +#if defined PIC && DO_VERSIONING +default_symbol_version (__new_getrlimit, getrlimit, GLIBC_2.1.3); +#else +weak_alias (__new_getrlimit, getrlimit); +#endif diff --git a/sysdeps/unix/sysv/linux/i386/getrlimit64.c b/sysdeps/unix/sysv/linux/i386/getrlimit64.c new file mode 100644 index 0000000000..602dd28d8a --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/getrlimit64.c @@ -0,0 +1,28 @@ +/* Copyright (C) 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define getrlimit64 __new_getrlimit64 + +#include <sysdeps/generic/getrlimit64.c> + +#undef getrlimit64 +#if defined PIC && defined DO_VERSIONING +default_symbol_version (__new_getrlimit64, getrlimit64, GLIBC_2.1.3); +#else +weak_alias (__new_getrlimit64, getrlimit64); +#endif diff --git a/sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c b/sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c new file mode 100644 index 0000000000..5fb0becfbe --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c @@ -0,0 +1,53 @@ +/* Copyright (C) 1991, 1995, 1996, 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This is a compatibility file. If we don't build the libc with + versioning don't compile this file. */ +#if defined PIC && DO_VERSIONING + +#include <errno.h> +#include <sys/resource.h> +#include <sys/types.h> + +extern int __old_getrlimit (enum __rlimit_resource, struct rlimit *); + +/* Put the soft and hard limits for RESOURCE in *RLIMITS. + Returns 0 if successful, -1 if not (and sets errno). */ +int +__old_getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits) +{ + struct rlimit rlimits32; + + if (__old_getrlimit (resource, &rlimits32) < 0) + return -1; + + if (rlimits32.rlim_cur == RLIM_INFINITY >> 1) + rlimits->rlim_cur = RLIM64_INFINITY >> 1; + else + rlimits->rlim_cur = rlimits32.rlim_cur; + if (rlimits32.rlim_max == RLIM_INFINITY >> 1) + rlimits->rlim_max = RLIM64_INFINITY >> 1; + else + rlimits->rlim_max = rlimits32.rlim_max; + + return 0; +} + +symbol_version (__old_getrlimit64, getrlimit64, GLIBC_2.1); + +#endif /* PIC && DO_VERSIONING */ diff --git a/sysdeps/unix/sysv/linux/i386/oldsetrlimit64.c b/sysdeps/unix/sysv/linux/i386/oldsetrlimit64.c new file mode 100644 index 0000000000..c5448dcdce --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/oldsetrlimit64.c @@ -0,0 +1,52 @@ +/* Copyright (C) 1991, 95, 96, 97, 98, 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This is a compatibility file. If we don't build the libc with + versioning don't compile this file. */ +#if defined PIC && DO_VERSIONING + +#include <errno.h> +#include <sys/resource.h> +#include <sys/types.h> + +extern int __old_setrlimit (enum __rlimit_resource, const struct rlimit *); + +/* Set the soft and hard limits for RESOURCE to *RLIMITS. + Only the super-user can increase hard limits. + Return 0 if successful, -1 if not (and sets errno). */ +int +__old_setrlimit64 (enum __rlimit_resource resource, + const struct rlimit64 *rlimits) +{ + struct rlimit rlimits32; + + if (rlimits->rlim_cur >= RLIM_INFINITY >> 1) + rlimits32.rlim_cur = RLIM_INFINITY >> 1; + else + rlimits32.rlim_cur = rlimits->rlim_cur; + if (rlimits->rlim_max >= RLIM_INFINITY >> 1) + rlimits32.rlim_max = RLIM_INFINITY >> 1; + else + rlimits32.rlim_max = rlimits->rlim_max; + + return __old_setrlimit (resource, &rlimits32); +} + +symbol_version (__old_setrlimit64, setrlimit64, GLIBC_2.1); + +#endif /* PIC && DO_VERSIONING */ diff --git a/sysdeps/unix/sysv/linux/i386/setrlimit.c b/sysdeps/unix/sysv/linux/i386/setrlimit.c new file mode 100644 index 0000000000..2123360fc9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/setrlimit.c @@ -0,0 +1,82 @@ +/* Copyright (C) 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <sys/param.h> +#include <sys/resource.h> + +#include <sysdep.h> +#include <sys/syscall.h> + +#include "kernel-features.h" + +extern int __syscall_setrlimit (unsigned int resource, + const struct rlimit *rlimits); +extern int __syscall_ugetrlimit (unsigned int resource, + const struct rlimit *rlimits); + +/* Linux 2.3.25 introduced a new system call since the types used for + the limits are now unsigned. */ +#if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL +extern int __have_no_new_getrlimit; /* from getrlimit.c */ +#endif + +int +__new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits) +{ +#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL + return INLINE_SYSCALL (setrlimit, 2, resource, rlimits); +#else + struct rlimit rlimits_small; + +# ifdef __NR_ugetrlimit + if (__have_no_new_getrlimit == 0) + { + /* Check if the new ugetrlimit syscall exists. We must do this + first because older kernels don't reject negative rlimit + values in setrlimit. */ + result = INLINE_SYSCALL (ugetrlimit, 2, resource, &rlimits_small); + if (result != -1 || errno != ENOSYS) + /* The syscall exists. */ + __have_no_new_getrlimit = -1; + else + /* The syscall does not exist. */ + __have_no_new_getrlimit = 1; + } + if (__have_no_new_getrlimit < 0) + return INLINE_SYSCALL (setrlimit, 2, resource, rlimits); +# endif + + /* We might have to correct the limits values. Since the old values + were signed the new values might be too large. */ + rlimits_small.rlim_cur = MIN ((unsigned long int) rlimits->rlim_cur, + RLIM_INFINITY >> 1); + rlimits_small.rlim_max = MIN ((unsigned long int) rlimits->rlim_max, + RLIM_INFINITY >> 1); + + /* Use the adjusted values. */ + return INLINE_SYSCALL (setrlimit, 2, resource, &rlimits_small); +#endif +} + +weak_alias (__new_setrlimit, __setrlimit); +#if defined PIC && DO_VERSIONING +default_symbol_version (__new_setrlimit, setrlimit, GLIBC_2.1.3); +#else +weak_alias (__new_setrlimit, setrlimit); +#endif diff --git a/sysdeps/unix/sysv/linux/i386/setrlimit64.c b/sysdeps/unix/sysv/linux/i386/setrlimit64.c new file mode 100644 index 0000000000..3e7e5cc0e0 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/setrlimit64.c @@ -0,0 +1,28 @@ +/* Copyright (C) 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define setrlimit64 __new_setrlimit64 + +#include <sysdeps/generic/setrlimit64.c> + +#undef setrlimit64 +#if defined PIC && defined DO_VERSIONING +default_symbol_version (__new_setrlimit64, setrlimit64, GLIBC_2.1.3); +#else +weak_alias (__new_setrlimit64, setrlimit64); +#endif |