| H. Peter Anvin (Intel) | 5b4de52 | 2020-06-01 13:10:46 -0700 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------- * |
| 2 | * |
| 3 | * Copyright 2020 The NASM Authors - All Rights Reserved |
| 4 | * See the file AUTHORS included with the NASM distribution for |
| 5 | * the specific copyright holders. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following |
| 9 | * conditions are met: |
| 10 | * |
| 11 | * * Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * * Redistributions in binary form must reproduce the above |
| 14 | * copyright notice, this list of conditions and the following |
| 15 | * disclaimer in the documentation and/or other materials provided |
| 16 | * with the distribution. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| 19 | * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 20 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 21 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 25 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 29 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 30 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | * ----------------------------------------------------------------------- */ |
| 33 | |
| 34 | #include "compiler.h" |
| 35 | #include "nasmlib.h" |
| 36 | |
| 37 | #ifdef HAVE_SYS_RESOURCE_H |
| 38 | # include <sys/resource.h> |
| 39 | #endif |
| 40 | |
| 41 | #if defined(HAVE_GETRLIMIT) && defined(RLIMIT_STACK) |
| 42 | |
| 43 | size_t nasm_get_stack_size_limit(void) |
| 44 | { |
| 45 | struct rlimit rl; |
| 46 | |
| 47 | if (getrlimit(RLIMIT_STACK, &rl)) |
| 48 | return SIZE_MAX; |
| 49 | |
| 50 | # ifdef RLIM_SAVED_MAX |
| 51 | if (rl.rlim_cur == RLIM_SAVED_MAX) |
| 52 | rl.rlim_cur = rl.rlim_max; |
| 53 | # endif |
| 54 | |
| 55 | if ( |
| 56 | # ifdef RLIM_INFINITY |
| 57 | rl.rlim_cur >= RLIM_INFINITY || |
| 58 | # endif |
| 59 | # ifdef RLIM_SAVED_CUR |
| 60 | rl.rlim_cur == RLIM_SAVED_CUR || |
| 61 | # endif |
| 62 | # ifdef RLIM_SAVED_MAX |
| 63 | rl.rlim_cur == RLIM_SAVED_MAX || |
| 64 | # endif |
| 65 | (size_t)rl.rlim_cur != rl.rlim_cur) |
| 66 | return SIZE_MAX; |
| 67 | |
| 68 | return rl.rlim_cur; |
| 69 | } |
| 70 | |
| 71 | #else |
| 72 | |
| 73 | size_t nasm_get_stack_size_limit(void) |
| 74 | { |
| 75 | return SIZE_MAX; |
| 76 | } |
| 77 | |
| 78 | #endif |