diff options
author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-05-16 01:30:24 +0000 |
---|---|---|
committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-05-16 01:30:24 +0000 |
commit | fda7696ffbc58e4485f46a1de85512ee7fb65128 (patch) | |
tree | fe3278eb3a7ddf7c31cf82dad734a6a61aec1f80 /lib/profile/InstrProfiling.c | |
parent | 3a7550a78bd8f4c9e1eea7002e7ade6deb276d4c (diff) |
InstrProf: Fix shared object profiling
Change the API of the instrumented profiling library to work with shared
objects.
- Most things are now declared hidden, so that each executable gets
its own copy.
- Initialization hooks up a linked list of writers.
- The raw format with shared objects that are profiled consists of a
concatenated series of profiles. llvm-profdata knows how to deal
with that since r208938.
<rdar://problem/16918688>
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@208940 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/profile/InstrProfiling.c')
-rw-r--r-- | lib/profile/InstrProfiling.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/profile/InstrProfiling.c b/lib/profile/InstrProfiling.c index 123dd0d3b..aeb3681aa 100644 --- a/lib/profile/InstrProfiling.c +++ b/lib/profile/InstrProfiling.c @@ -10,6 +10,7 @@ #include "InstrProfiling.h" #include <string.h> +__attribute__((visibility("hidden"))) uint64_t __llvm_profile_get_magic(void) { /* Magic number to detect file format and endianness. * @@ -32,11 +33,13 @@ uint64_t __llvm_profile_get_magic(void) { (uint64_t)129; } +__attribute__((visibility("hidden"))) uint64_t __llvm_profile_get_version(void) { /* This should be bumped any time the output format changes. */ return 1; } +__attribute__((visibility("hidden"))) void __llvm_profile_reset_counters(void) { uint64_t *I = __llvm_profile_counters_begin(); uint64_t *E = __llvm_profile_counters_end(); |