diff options
| author | Philip Guenther <guenther@cvs.openbsd.org> | 2016-05-07 19:05:25 +0000 |
|---|---|---|
| committer | Philip Guenther <guenther@cvs.openbsd.org> | 2016-05-07 19:05:25 +0000 |
| commit | be4e94637d7117375492627b79c41629c7da9bc3 (patch) | |
| tree | 61a9fabcc07d38d2720bbb937e83103928286550 /libexec/ld.so/alpha | |
| parent | 33d8693716b4a6d503e0ba97f94a783905b87f28 (diff) | |
Use a Thread Information Block in both single and multi-threaded programs.
This stores errno, the cancelation flags, and related bits for each thread
and is allocated by ld.so or libc.a. This is an ABI break from 5.9-stable!
Make libpthread dlopen'able by moving the cancelation wrappers into libc
and doing locking and fork/errno handling via callbacks that libpthread
registers when it first initializes. 'errno' *must* be declared via
<errno.h> now!
Clean up libpthread's symbol exports like libc.
On powerpc, offset the TIB/TCB/TLS data from the register per the ELF spec.
Testing by various, particularly sthen@ and patrick@
ok kettenis@
Diffstat (limited to 'libexec/ld.so/alpha')
| -rw-r--r-- | libexec/ld.so/alpha/ldasm.S | 4 | ||||
| -rw-r--r-- | libexec/ld.so/alpha/syscall.h | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/libexec/ld.so/alpha/ldasm.S b/libexec/ld.so/alpha/ldasm.S index f71de97c74d..952b0c7e174 100644 --- a/libexec/ld.so/alpha/ldasm.S +++ b/libexec/ld.so/alpha/ldasm.S @@ -1,4 +1,4 @@ -/* $OpenBSD: ldasm.S,v 1.34 2016/03/21 22:41:28 bluhm Exp $ */ +/* $OpenBSD: ldasm.S,v 1.35 2016/05/07 19:05:23 guenther Exp $ */ /* * Copyright (c) 2001 Niklas Hallqvist @@ -317,6 +317,7 @@ DL_SYSCALL(sendsyslog) DL_SYSCALL(pledge) DL_SYSCALL(gettimeofday) DL_SYSCALL_NOERR(issetugid) +DL_SYSCALL_NOERR(getthrid) DL_SYSCALL(lstat) DL_SYSCALL(mprotect) DL_SYSCALL(munmap) @@ -324,6 +325,7 @@ DL_SYSCALL(open) DL_SYSCALL(read) DL_SYSCALL(readlink) DL_SYSCALL2(_syscall,__syscall) +DL_SYSCALL2_NOERR(set_tcb,__set_tcb) DL_SYSCALL(sysctl) DL_SYSCALL(utrace) DL_SYSCALL(write) diff --git a/libexec/ld.so/alpha/syscall.h b/libexec/ld.so/alpha/syscall.h index df364c4715e..8005b3e3307 100644 --- a/libexec/ld.so/alpha/syscall.h +++ b/libexec/ld.so/alpha/syscall.h @@ -1,4 +1,4 @@ -/* $OpenBSD: syscall.h,v 1.32 2016/03/21 22:41:28 bluhm Exp $ */ +/* $OpenBSD: syscall.h,v 1.33 2016/05/07 19:05:23 guenther Exp $ */ /* * Copyright (c) 2001 Niklas Hallqvist @@ -41,6 +41,7 @@ int _dl_close(int); __dead int _dl_exit(int); int _dl_issetugid(void); +int _dl_getthrid(void); void * _dl_mmap(void *, size_t, int, int, int, off_t); int _dl_mprotect(const void *, size_t, int); int _dl_munmap(const void *, size_t); @@ -58,6 +59,7 @@ int _dl_getcwd(char *, size_t); int _dl_utrace(const char *, const void *, size_t); int _dl_getentropy(char *, size_t); int _dl_sendsyslog(const char *, size_t, int); +void _dl_set_tcb(void *); static inline off_t _dl_lseek(int fildes, off_t offset, int whence) |