diff options
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/mips/Makefile.arch | 6 | ||||
| -rw-r--r-- | libc/sysdeps/linux/mips/clone.S | 2 | ||||
| -rw-r--r-- | libc/sysdeps/linux/mips/sys/asm.h | 16 |
3 files changed, 23 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/mips/Makefile.arch b/libc/sysdeps/linux/mips/Makefile.arch index da5ca1e0f..8edd83516 100644 --- a/libc/sysdeps/linux/mips/Makefile.arch +++ b/libc/sysdeps/linux/mips/Makefile.arch @@ -7,9 +7,13 @@ CSRC := \ __longjmp.c brk.c setjmp_aux.c mmap.c __syscall_error.c \ - cacheflush.c pread_write.c sysmips.c _test_and_set.c sigaction.c \ + cacheflush.c pread_write.c sysmips.c _test_and_set.c \ readahead.c posix_fadvise.c posix_fadvise64.c +ifneq ($(UCLIBC_HAS_THREADS_NATIVE),y) +CSRC += sigaction.c +endif + SSRC := bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S syscall.S pipe.S ARCH_HEADERS := sgidefs.h diff --git a/libc/sysdeps/linux/mips/clone.S b/libc/sysdeps/linux/mips/clone.S index 716cd993f..40caf18e0 100644 --- a/libc/sysdeps/linux/mips/clone.S +++ b/libc/sysdeps/linux/mips/clone.S @@ -125,3 +125,5 @@ __thread_start: move a0,v0 jal HIDDEN_JUMPTARGET(_exit) .end __thread_start +weak_alias(clone, __clone) + diff --git a/libc/sysdeps/linux/mips/sys/asm.h b/libc/sysdeps/linux/mips/sys/asm.h index 76f6af3e1..a339f7de3 100644 --- a/libc/sysdeps/linux/mips/sys/asm.h +++ b/libc/sysdeps/linux/mips/sys/asm.h @@ -470,4 +470,20 @@ symbol = value # define MTC0 dmtc0 #endif +/* The MIPS archtectures do not have a uniform memory model. Particular + platforms may provide additional guarantees - for instance, the R4000 + LL and SC instructions implicitly perform a SYNC, and the 4K promises + strong ordering. + + However, in the absence of those guarantees, we must assume weak ordering + and SYNC explicitly where necessary. + + Some obsolete MIPS processors may not support the SYNC instruction. This + applies to "true" MIPS I processors; most of the processors which compile + using MIPS I implement parts of MIPS II. */ + +#ifndef MIPS_SYNC +# define MIPS_SYNC sync +#endif + #endif /* sys/asm.h */ |