diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S index 4a16669383..32fc47c3f3 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S @@ -124,8 +124,10 @@ L(noparms): /* If the target function returns we need to do some cleanup. We use a code trick to get the address of our cleanup function into the link - register. Do not add any code between here and L(exitcode). */ - bl L(gotexitcodeaddr); + register. Do not add any code between here and L(exitcode). + Use this conditional form of branch and link to avoid destroying + the cpu link stack used to predict blr return addresses. */ + bcl 20,31,L(gotexitcodeaddr); /* This is the helper code which gets called if a function which is registered with 'makecontext' returns. In this case we |