X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=liblttng-ust%2Fcompat.h;h=004e60ace8d86771652405c2076f555969bd12d8;hb=bdcf8d826c422e00a533d99bee937ddd0f877842;hp=8ee4470a0b381289986e48742274fa287d835e1a;hpb=4c1ee94e5ef9ac3efb4a036108a9ff4eb24c238c;p=lttng-ust.git diff --git a/liblttng-ust/compat.h b/liblttng-ust/compat.h index 8ee4470a..004e60ac 100644 --- a/liblttng-ust/compat.h +++ b/liblttng-ust/compat.h @@ -14,17 +14,51 @@ * modified is included with the above copyright notice. */ -#include +/* + * lttng_ust_getprocname. + */ +#ifdef __linux__ + +#include + +#define LTTNG_UST_PROCNAME_LEN 17 + +static inline +void lttng_ust_getprocname(char *name) +{ + (void) prctl(PR_GET_NAME, (unsigned long) name, 0, 0, 0); +} + +#elif defined(__FreeBSD__) +#include +#include -#ifdef __UCLIBC__ -#define __getcpu(cpu, node, cache) syscall(__NR_getcpu, cpu, node, cache) +/* + * Limit imposed by Linux UST-sessiond ABI. + */ +#define LTTNG_UST_PROCNAME_LEN 17 + +/* + * Acts like linux prctl, the string is not necessarily 0-terminated if + * 16-byte long. + */ static inline -int sched_getcpu(void) +void lttng_ust_getprocname(char *name) { - int c, s; + const char *bsd_name; - s = __getcpu(&c, NULL, NULL); - return (s == -1) ? s : c; + bsd_name = getprogname(); + if (!bsd_name) + name[0] = '\0'; + memcpy(name, bsd_name, LTTNG_UST_PROCNAME_LEN - 1); } -#endif /* __UCLIBC__ */ + +#endif + +#include + +#ifndef ENODATA +#define ENODATA ENOMSG +#endif + #endif /* _UST_COMPAT_H */