diff options
| -rw-r--r-- | tools/include/nolibc/stdlib.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/tools/include/nolibc/stdlib.h b/tools/include/nolibc/stdlib.h index aca8616335e3..8a07e263f0d0 100644 --- a/tools/include/nolibc/stdlib.h +++ b/tools/include/nolibc/stdlib.h @@ -60,16 +60,17 @@ int atoi(const char *s) return atol(s); } -/* Tries to find the environment variable named <name> in the environment array - * pointed to by global variable "environ" which must be declared as a char **, - * and must be terminated by a NULL (it is recommended to set this variable to - * the "envp" argument of main()). If the requested environment variable exists - * its value is returned otherwise NULL is returned. +/* getenv() tries to find the environment variable named <name> in the + * environment array pointed to by global variable "environ" which must be + * declared as a char **, and must be terminated by a NULL (it is recommended + * to set this variable to the "envp" argument of main()). If the requested + * environment variable exists its value is returned otherwise NULL is + * returned. getenv() is forcefully inlined so that the reference to "environ" + * will be dropped if unused, even at -O0. */ static __attribute__((unused)) -char *getenv(const char *name) +char *_getenv(const char *name, char **environ) { - extern char **environ; int idx, i; if (environ) { @@ -83,6 +84,13 @@ char *getenv(const char *name) return NULL; } +static inline __attribute__((unused,always_inline)) +char *getenv(const char *name) +{ + extern char **environ; + return _getenv(name, environ); +} + /* Converts the unsigned long integer <in> to its hex representation into * buffer <buffer>, which must be long enough to store the number and the * trailing zero (17 bytes for "ffffffffffffffff" or 9 for "ffffffff"). The |