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| author | Russ Cox <rsc@swtch.com> | 2020-01-07 15:31:01 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2020-01-07 15:31:51 -0500 |
| commit | 540caa5873bcc3bc2a0e1896119f5b53a0e8e630 (patch) | |
| tree | 63ada739912d30befce1346d2e3a77e6317f7b16 /include/libc.h | |
| parent | 2897735523dd05a4ef21d25d3d99fa7fa0b24b44 (diff) | |
| download | plan9port-540caa5873bcc3bc2a0e1896119f5b53a0e8e630.tar.gz plan9port-540caa5873bcc3bc2a0e1896119f5b53a0e8e630.tar.bz2 plan9port-540caa5873bcc3bc2a0e1896119f5b53a0e8e630.zip | |
lib9: remove getcallerpc implementations
These make no sense and are not really needed at all.
Add a best-effort attempt to get at the gcc/clang macro
in lib9.h, but if it fails, no big deal.
Fixes #324.
Diffstat (limited to 'include/libc.h')
| -rw-r--r-- | include/libc.h | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/include/libc.h b/include/libc.h index 45b22b69..94d5b5ca 100644 --- a/include/libc.h +++ b/include/libc.h @@ -11,13 +11,13 @@ #define _LIBC_H_ 1 #if defined(__cplusplus) extern "C" { -#endif +#endif #include <utf.h> #include <fmt.h> /* - * Begin usual libc.h + * Begin usual libc.h */ #ifndef nil @@ -361,7 +361,7 @@ enum extern int p9atexit(void(*)(void)); extern void p9atexitdont(void(*)(void)); extern int atnotify(int(*)(void*, char*), int); -/* +/* * <stdlib.h> extern double atof(char*); <stdlib.h> */ @@ -385,6 +385,9 @@ extern int exitcode(char*); extern void exits(char*); extern double frexp(double, int*); extern ulong getcallerpc(void*); +#if defined(__GNUC__) || defined(__clang__) +#define getcallerpc(x) ((ulong)__builtin_return_address(0)) +#endif extern char* p9getenv(char*); extern int p9putenv(char*, char*); extern int getfields(char*, char**, int, int, char*); @@ -479,7 +482,7 @@ extern void lock(Lock*); extern void unlock(Lock*); extern int canlock(Lock*); extern int (*_lock)(Lock*, int, ulong); -extern void (*_unlock)(Lock*, ulong); +extern void (*_unlock)(Lock*, ulong); typedef struct QLock QLock; struct QLock @@ -670,15 +673,15 @@ extern void freenetconninfo(NetConnInfo*); enum { - RFNAMEG = (1<<0), - RFENVG = (1<<1), + RFNAMEG = (1<<0), + RFENVG = (1<<1), RFFDG = (1<<2), RFNOTEG = (1<<3), RFPROC = (1<<4), RFMEM = (1<<5), RFNOWAIT = (1<<6), - RFCNAMEG = (1<<10), - RFCENVG = (1<<11), + RFCNAMEG = (1<<10), + RFCENVG = (1<<11), RFCFDG = (1<<12) /* RFREND = (1<<13), */ /* RFNOMNT = (1<<14) */ @@ -707,7 +710,7 @@ struct Dir { char *uid; /* owner name */ char *gid; /* group name */ char *muid; /* last modifier name */ - + /* 9P2000.u extensions */ uint uidnum; /* numeric uid */ uint gidnum; /* numeric gid */ @@ -750,7 +753,7 @@ extern int p9exec(char*, char*[]); extern int p9execl(char*, ...); /* extern int p9fork(void); */ extern int p9rfork(int); -/* not implemented +/* not implemented extern int fauth(int, char*); extern int fstat(int, uchar*, int); extern int fwstat(int, uchar*, int); @@ -767,7 +770,7 @@ extern int notifyoff(char*); extern int p9open(char*, int); extern int fd2path(int, char*, int); extern int p9pipe(int*); -/* +/* * use defs from <unistd.h> extern long pread(int, void*, long, vlong); extern long preadv(int, IOchunk*, int, vlong); |