projects / lttng-ust.git / blame
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|---|---|---|
| b728d87e MD |
1 | #ifndef _UST_COMPAT_H |
| 2 | #define _UST_COMPAT_H | |
| 3 | ||
| 4 | /* | |
| e92f3e28 | 5 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| b728d87e | 6 | * |
| e92f3e28 MD |
7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public | |
| 9 | * License as published by the Free Software Foundation; only | |
| 10 | * version 2.1 of the License. | |
| b728d87e | 11 | * |
| e92f3e28 MD |
12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * Lesser General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU Lesser General Public | |
| 18 | * License along with this library; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| b728d87e MD |
20 | */ |
| 21 | ||
| 69df1193 MD |
22 | /* |
| 23 | * sched_getcpu. | |
| 24 | */ | |
| 25 | #ifdef __linux__ | |
| e4486ebc MD |
26 | |
| 27 | #ifdef __UCLIBC__ | |
| 69df1193 | 28 | #include <sys/syscall.h> |
| e4486ebc MD |
29 | #define __getcpu(cpu, node, cache) syscall(__NR_getcpu, cpu, node, cache) |
| 30 | static inline | |
| 31 | int sched_getcpu(void) | |
| 32 | { | |
| 33 | int c, s; | |
| 34 | ||
| 35 | s = __getcpu(&c, NULL, NULL); | |
| 36 | return (s == -1) ? s : c; | |
| 37 | } | |
| 38 | #endif /* __UCLIBC__ */ | |
| 69df1193 MD |
39 | |
| 40 | #else | |
| 41 | #error "Please add support for your OS into liblttng-ust/compat.h." | |
| 42 | #endif | |
| 43 | ||
| 44 | /* | |
| 45 | * lttng_ust_getprocname. | |
| 46 | */ | |
| 47 | #ifdef __linux__ | |
| 48 | ||
| 49 | #include <sys/prctl.h> | |
| 50 | ||
| 51 | #define LTTNG_UST_PROCNAME_LEN 17 | |
| 52 | ||
| 53 | static inline | |
| 54 | void lttng_ust_getprocname(char *name) | |
| 55 | { | |
| 56 | (void) prctl(PR_GET_NAME, (unsigned long) name, 0, 0, 0); | |
| 57 | } | |
| 58 | ||
| 59 | #elif defined(__FreeBSD__) | |
| 60 | #include <stdlib.h> | |
| 61 | #include <string.h> | |
| 62 | ||
| 63 | /* | |
| 64 | * Limit imposed by Linux UST-sessiond ABI. | |
| 65 | */ | |
| 66 | #define LTTNG_UST_PROCNAME_LEN 17 | |
| 67 | ||
| 68 | /* | |
| 69 | * Acts like linux prctl, the string is not necessarily 0-terminated if | |
| 70 | * 16-byte long. | |
| 71 | */ | |
| 72 | static inline | |
| 73 | void lttng_ust_getprocname(char *name) | |
| 74 | { | |
| 75 | const char *bsd_name; | |
| 76 | ||
| 77 | bsd_name = getprogname(); | |
| 78 | if (!bsd_name) | |
| 79 | name[0] = '\0'; | |
| 80 | memcpy(name, bsd_name, LTTNG_UST_PROCNAME_LEN - 1); | |
| 81 | } | |
| 82 | ||
| 83 | #endif | |
| 84 | ||
| b728d87e | 85 | #endif /* _UST_COMPAT_H */ |