llvm-svn: 146522

info in the error message. Per Dan's request.

llvm-svn: 131780

This change allows bugpoint to pinpoint the "opt" pass and bitcode
segment responsible for a crash caused by miscompilation. At least it
works well for me now, without having to create any custom execution
wrappers.

llvm-svn: 131186

Luis Felipe Strano Moraes!

llvm-svn: 129558

- glibc falls back to fork+exec if a file actions object is present.
- On BSDs this saves a malloc.

llvm-svn: 127969

llvm-svn: 123151

from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'

llvm-svn: 120314

llvm-svn: 120298

This makes its behaviour more consistent across platforms.

llvm-svn: 118048

llvm-svn: 117666

being not found from the file being not executable. 

llvm-svn: 117664

executing the child process and abnormal child process termination.

llvm-svn: 117661

which contains slashes is inconsistent with the meaning of PATH on
Unix-type platforms, and pretty surprising.

If the user has given a specific path to execute and we can't
execute it, we should fail and say why.  (Apparently the new
posix_spawn code doesn't always say why, but that's a separate
issue.)

llvm-svn: 117596

Original commit message:

    On "Unix", if Program::FindProgramByName is given a name containing
    slashes, just go with it, regardless of whether it looks like it will
    be executable. This follows the behavior of sh(1) more closely.

It's better when behaviour is consistent between platforms. This change also
makes FindExecutable() behave as expected on unix-likes (before this commit, it
used to always succeed).

llvm-svn: 117582

llvm-svn: 117581

false positive, at least on Darwin. I haven't filed this, but you can feel free.

llvm-svn: 115242

just use memset to zero the entire struct.

llvm-svn: 108330

llvm-svn: 107785

llvm-svn: 101782

llvm-svn: 101723

llvm-svn: 101711

llvm-svn: 101710

platforms to unbreak the darwin and linux builds. The BSD folks should feel
free to change the #if, if this breaks them.

llvm-svn: 101703

llvm-svn: 101702

llvm-svn: 101701

as it is more efficient than fork/exec.

Thanks to Eric for adding the autoconf check.  It would be nice if
a cmake guru could add a cmake check for posix_spawn as well.

llvm-svn: 101693

llvm-svn: 100933

cppcheck, PR6617.  Patch by Ettl Martin!

llvm-svn: 98525

Kees van Reeuwijk!

llvm-svn: 95946

llvm-svn: 94743

not to work any more on linux.

llvm-svn: 86481

Use 'waitpid' instead of 'wait'.  Basing Program::Wait() on 'wait()' prevents it being correct within a multithreaded context.

This address: PR 5277 (Program::Wait is unsafe to call from multiple threads).

Note: If waitpid() turns out to be non-portable, we can add more autoconf magic, or look into
another solution.

llvm-svn: 84903

ExecuteAndWait.

llvm-svn: 82522

GetProcessId was introduced only in XP. As a bonus, this change makes Program
objects copyable, since Program is now basically a PID.

llvm-svn: 81826

Thanks to Duncan Sands for spotting this.

llvm-svn: 81328

llvm-svn: 81252

llvm-svn: 81249

llvm-svn: 81247

llvm-svn: 81246

equivalent to SIG_IGN.

llvm-svn: 81144