diff --git a/runtime/libprofile/CMakeLists.txt b/runtime/libprofile/CMakeLists.txt index 8609715b33f..9044f768e17 100644 --- a/runtime/libprofile/CMakeLists.txt +++ b/runtime/libprofile/CMakeLists.txt @@ -1,7 +1,6 @@ set(SOURCES BasicBlockTracing.c CommonProfiling.c - GCDAProfiling.c PathProfiling.c EdgeProfiling.c OptimalEdgeProfiling.c diff --git a/runtime/libprofile/GCDAProfiling.c b/runtime/libprofile/GCDAProfiling.c deleted file mode 100644 index 8a805805ce7..00000000000 --- a/runtime/libprofile/GCDAProfiling.c +++ /dev/null @@ -1,210 +0,0 @@ -/*===- GCDAProfiling.c - Support library for GCDA file emission -----------===*\ -|* -|* The LLVM Compiler Infrastructure -|* -|* This file is distributed under the University of Illinois Open Source -|* License. See LICENSE.TXT for details. -|* -|*===----------------------------------------------------------------------===*| -|* -|* This file implements the call back routines for the gcov profiling -|* instrumentation pass. Link against this library when running code through -|* the -insert-gcov-profiling LLVM pass. -|* -|* We emit files in a corrupt version of GCOV's "gcda" file format. These files -|* are only close enough that LCOV will happily parse them. Anything that lcov -|* ignores is missing. -|* -|* TODO: gcov is multi-process safe by having each exit open the existing file -|* and append to it. We'd like to achieve that and be thread-safe too. -|* -\*===----------------------------------------------------------------------===*/ - -#include "llvm/Support/DataTypes.h" -#include -#include -#include -#include -#include -#ifdef _WIN32 -#include -#endif - -/* #define DEBUG_GCDAPROFILING */ - -/* - * --- GCOV file format I/O primitives --- - */ - -static FILE *output_file = NULL; - -static void write_int32(uint32_t i) { - fwrite(&i, 4, 1, output_file); -} - -static void write_int64(uint64_t i) { - uint32_t lo = i >> 0; - uint32_t hi = i >> 32; - write_int32(lo); - write_int32(hi); -} - -static uint32_t length_of_string(const char *s) { - return (strlen(s) / 4) + 1; -} - -static void write_string(const char *s) { - uint32_t len = length_of_string(s); - write_int32(len); - fwrite(s, strlen(s), 1, output_file); - fwrite("\0\0\0\0", 4 - (strlen(s) % 4), 1, output_file); -} - -static char *mangle_filename(const char *orig_filename) { - /* TODO: handle GCOV_PREFIX_STRIP */ - const char *prefix; - char *filename = 0; - - prefix = getenv("GCOV_PREFIX"); - - if (!prefix) - return strdup(orig_filename); - - filename = malloc(strlen(prefix) + 1 + strlen(orig_filename) + 1); - strcpy(filename, prefix); - strcat(filename, "/"); - strcat(filename, orig_filename); - return filename; -} - -static void recursive_mkdir(const char *filename) { - char *pathname; - int i, e; - - for (i = 1, e = strlen(filename); i != e; ++i) { - if (filename[i] != '/') continue; - pathname = malloc(i + 1); - strncpy(pathname, filename, i); - pathname[i] = '\0'; -#ifdef _WIN32 - _mkdir(pathname); -#else - mkdir(pathname, 0750); /* some of these will fail, ignore it. */ -#endif - free(pathname); - } -} - -/* - * --- LLVM line counter API --- - */ - -/* A file in this case is a translation unit. Each .o file built with line - * profiling enabled will emit to a different file. Only one file may be - * started at a time. - */ -void llvm_gcda_start_file(const char *orig_filename) { - char *filename; - filename = mangle_filename(orig_filename); - recursive_mkdir(filename); - output_file = fopen(filename, "w+b"); - - if (!output_file) { - const char *cptr = strrchr(orig_filename, '/'); - output_file = fopen(cptr ? cptr + 1 : orig_filename, "w+b"); - - if (!output_file) { - fprintf(stderr, "LLVM profiling runtime: cannot open '%s': ", - cptr ? cptr + 1 : orig_filename); - perror(""); - free(filename); - return; - } - } - - /* gcda file, version 404*, stamp LLVM. */ -#ifdef __APPLE__ - fwrite("adcg*204MVLL", 12, 1, output_file); -#else - fwrite("adcg*404MVLL", 12, 1, output_file); -#endif - -#ifdef DEBUG_GCDAPROFILING - printf("llvmgcda: [%s]\n", orig_filename); -#endif - - free(filename); -} - -/* Given an array of pointers to counters (counters), increment the n-th one, - * where we're also given a pointer to n (predecessor). - */ -void llvm_gcda_increment_indirect_counter(uint32_t *predecessor, - uint64_t **counters) { - uint64_t *counter; - uint32_t pred; - - pred = *predecessor; - if (pred == 0xffffffff) - return; - counter = counters[pred]; - - /* Don't crash if the pred# is out of sync. This can happen due to threads, - or because of a TODO in GCOVProfiling.cpp buildEdgeLookupTable(). */ - if (counter) - ++*counter; -#ifdef DEBUG_GCDAPROFILING - else - printf("llvmgcda: increment_indirect_counter counters=%x, pred=%u\n", - state_table_row, *predecessor); -#endif -} - -void llvm_gcda_emit_function(uint32_t ident, const char *function_name) { - uint32_t len = 3; -#ifdef DEBUG_GCDAPROFILING - printf("llvmgcda: function id=%x name=%s\n", ident, - function_name ? function_name : "NULL"); -#endif - if (!output_file) return; - - /* function tag */ - fwrite("\0\0\0\1", 4, 1, output_file); - if (function_name) - len += 1 + length_of_string(function_name); - write_int32(len); - write_int32(ident); - write_int32(0); - write_int32(0); - if (function_name) - write_string(function_name); -} - -void llvm_gcda_emit_arcs(uint32_t num_counters, uint64_t *counters) { - uint32_t i; - - /* Counter #1 (arcs) tag */ - if (!output_file) return; - fwrite("\0\0\xa1\1", 4, 1, output_file); - write_int32(num_counters * 2); - for (i = 0; i < num_counters; ++i) - write_int64(counters[i]); - -#ifdef DEBUG_GCDAPROFILING - printf("llvmgcda: %u arcs\n", num_counters); - for (i = 0; i < num_counters; ++i) - printf("llvmgcda: %llu\n", (unsigned long long)counters[i]); -#endif -} - -void llvm_gcda_end_file() { - /* Write out EOF record. */ - if (!output_file) return; - fwrite("\0\0\0\0\0\0\0\0", 8, 1, output_file); - fclose(output_file); - output_file = NULL; - -#ifdef DEBUG_GCDAPROFILING - printf("llvmgcda: -----\n"); -#endif -} diff --git a/runtime/libprofile/Makefile b/runtime/libprofile/Makefile index 44ea204bcf5..6c3701b2687 100644 --- a/runtime/libprofile/Makefile +++ b/runtime/libprofile/Makefile @@ -16,8 +16,6 @@ endif LIBRARYNAME = profile_rt LINK_LIBS_IN_SHARED = 1 SHARED_LIBRARY = 1 -EXTRA_DIST = libprofile.exports -EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/libprofile.exports # Build and install this archive. BUILD_ARCHIVE = 1 diff --git a/runtime/libprofile/libprofile.exports b/runtime/libprofile/libprofile.exports deleted file mode 100644 index 2f25be69204..00000000000 --- a/runtime/libprofile/libprofile.exports +++ /dev/null @@ -1,12 +0,0 @@ -llvm_start_edge_profiling -llvm_start_opt_edge_profiling -llvm_start_path_profiling -llvm_start_basic_block_tracing -llvm_trace_basic_block -llvm_increment_path_count -llvm_decrement_path_count -llvm_gcda_start_file -llvm_gcda_increment_indirect_counter -llvm_gcda_emit_function -llvm_gcda_emit_arcs -llvm_gcda_end_file