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| author | Ulrich Drepper <drepper@redhat.com> | 2003-05-09 07:53:33 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-05-09 07:53:33 +0000 |
| commit | 880867a475b1016f892a1248a3fce693406bf1f1 (patch) | |
| tree | 9b2456ac53d0959c24a8851beb1378b949f24338 /nptl/sysdeps/x86_64/pthreaddef.h | |
| parent | 92d83c725e09dbc76acfedc1cf85a01f9f54452d (diff) | |
| download | glibc-880867a475b1016f892a1248a3fce693406bf1f1.tar.gz glibc-880867a475b1016f892a1248a3fce693406bf1f1.tar.xz glibc-880867a475b1016f892a1248a3fce693406bf1f1.zip | |
Update.
2003-05-09 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/x86_64/get_clockfreq.c: New file.
Diffstat (limited to 'nptl/sysdeps/x86_64/pthreaddef.h')
| -rw-r--r-- | nptl/sysdeps/x86_64/pthreaddef.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/nptl/sysdeps/x86_64/pthreaddef.h b/nptl/sysdeps/x86_64/pthreaddef.h index 90a67f1751..27896a445c 100644 --- a/nptl/sysdeps/x86_64/pthreaddef.h +++ b/nptl/sysdeps/x86_64/pthreaddef.h @@ -36,6 +36,17 @@ ({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; }) +/* We prefer to have the stack allocated in the low 4GB since this + allows faster context switches. */ +#define ARCH_MAP_FLAGS MAP_32BIT + +/* If it is not possible to allocate memory there retry without that + flag. */ +#define ARCH_RETRY_MMAP(size) \ + mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, \ + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) + + /* XXX Until we have a better place keep the definitions here. */ /* While there is no such syscall. */ |