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62 Commits

Author SHA1 Message Date
Viktor Kutuzov 9068dfa6a7 Define uintptr_t in the profiling sources on x86_64 FreeBSD in 32-bit mode 
llvm-svn: 204799
 2014-03-26 12:00:44 +00:00
Duncan P. N. Exon Smith 8d02a2ac21 InstrProf: Remove MSVC-specific logic 
Apparently, MSVC has stdint.h now?  Let's see if the buildbots complain.
I'm not convinced that the build system is even set up for MSVC to build
this file, but...

llvm-svn: 204515
 2014-03-21 20:59:08 +00:00
Duncan P. N. Exon Smith f1c9361326 InstrProf: __ => _ in header guards 
llvm-svn: 204502
 2014-03-21 18:47:23 +00:00
Duncan P. N. Exon Smith 812dcae09c InstrProf: Unify logic in two profile writers 
<rdar://problem/15943240>

llvm-svn: 204500
 2014-03-21 18:29:24 +00:00
Duncan P. N. Exon Smith cf4bb960bd InstrProf: If libc is available, use it; no functionality change 
It was misguided to plan to rely on __llvm_profile_write_buffer() in
__llvm_profile_write_file().  It's less complex to duplicate the writing
logic than to mmap the file.

Since it's here to stay, move `FILE*`-based writing logic into
InstrProfilingFile.c.

<rdar://problem/15943240>

llvm-svn: 204498
 2014-03-21 18:29:19 +00:00
Duncan P. N. Exon Smith be0a5e176b InstrProf: Reorganize files; no functionality change 
Move functions around to prepare for some other changes.

  - Merge InstrProfilingExtras.h with InstrProfiling.h.  There's no
    benefit to having these split.

  - Rename InstrProfilingExtras.c to InstrProfilingFile.c.

  - Split actual buffer writing code out of InstrProfiling.c into
    InstrProfilingBuffer.c.

  - Drive-by corrections of a couple of header comments.

<rdar://problem/15943240>

llvm-svn: 204497
 2014-03-21 18:29:15 +00:00
Duncan P. N. Exon Smith 4543aac96e PGO: Indicate errors in profile runtime API 
Return 0 for success, non-0 for failure.

llvm-svn: 204415
 2014-03-21 00:27:50 +00:00
Duncan P. N. Exon Smith 71704754d6 PGO: Declare zero-argument C functions as foo(void) 
It turns out this is C code.  Specify foo(void).

<rdar://problem/15943240>

llvm-svn: 204396
 2014-03-20 20:55:00 +00:00
Duncan P. N. Exon Smith 9edbae0f16 PGO: Change runtime prefix from pgo to profile 
These functions are in the profile runtime.  PGO comes later.

Unfortunately, there's only room for 16 characters in a Darwin section,
so use __llvm_prf_ instead of __llvm_profile_ for section names.

<rdar://problem/15943240>

llvm-svn: 204391
 2014-03-20 20:00:44 +00:00
Duncan P. N. Exon Smith f1212176ac PGO: Add function to reset counters at runtime 
Adding __llvm_pgo_reset_counters(), which sets all the counters to 0.

<rdar://problem/15943240>

llvm-svn: 204386
 2014-03-20 19:44:31 +00:00
Duncan P. N. Exon Smith da0de8a237 PGO: Split out initialization of section bounds 
Currently we register instrumentation data at runtime to determine the
bounds of the sections where the data lives.  Soon we'll implement
platform-specific linker magic to determine this at link time.

Move this logic to a separate file, so that our build system can choose
the correct platform-specific code.

No functionality change intended.

<rdar://problem/15943240>

llvm-svn: 204299
 2014-03-20 03:23:10 +00:00
Duncan P. N. Exon Smith 8353a26e85 PGO: Splitting implementation files; no functionality change 
Split implementation files along a uses-libc/shouldn't-use-libc
boundary.

  - InstrProfiling.h is a shared header.

  - InstrProfiling.c provides an API to extract profiling data from the
    runtime, but avoids the use of libc.  Currently this is a lie:
    __llvm_pgo_write_buffer() uses `FILE*` and related functions.  It
    will be updated soon to write to a `char*` buffer instead.

  - InstrProfilingExtras.c provides a more convenient API for
    interfacing with the profiling runtime, but has logic that does (and
    will continue to) use libc.

<rdar://problem/15943240>

llvm-svn: 204268
 2014-03-19 22:10:27 +00:00