mirror of
https://github.com/c64scene-ar/llvm-6502.git
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Remove GCDAProfiling.c. This copy is old, the copy in compiler-rt is newer and
is the one that should be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176608 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
parent
3de61b4c01
commit
218042a023
@ -1,7 +1,6 @@
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set(SOURCES
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BasicBlockTracing.c
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CommonProfiling.c
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GCDAProfiling.c
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PathProfiling.c
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EdgeProfiling.c
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OptimalEdgeProfiling.c
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@ -1,210 +0,0 @@
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/*===- GCDAProfiling.c - Support library for GCDA file emission -----------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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|*===----------------------------------------------------------------------===*|
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|*
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|* This file implements the call back routines for the gcov profiling
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|* instrumentation pass. Link against this library when running code through
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|* the -insert-gcov-profiling LLVM pass.
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|*
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|* We emit files in a corrupt version of GCOV's "gcda" file format. These files
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|* are only close enough that LCOV will happily parse them. Anything that lcov
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|* ignores is missing.
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|*
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|* TODO: gcov is multi-process safe by having each exit open the existing file
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|* and append to it. We'd like to achieve that and be thread-safe too.
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|*
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\*===----------------------------------------------------------------------===*/
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#include "llvm/Support/DataTypes.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#ifdef _WIN32
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#include <direct.h>
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#endif
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/* #define DEBUG_GCDAPROFILING */
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/*
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* --- GCOV file format I/O primitives ---
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*/
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static FILE *output_file = NULL;
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static void write_int32(uint32_t i) {
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fwrite(&i, 4, 1, output_file);
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}
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static void write_int64(uint64_t i) {
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uint32_t lo = i >> 0;
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uint32_t hi = i >> 32;
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write_int32(lo);
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write_int32(hi);
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}
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static uint32_t length_of_string(const char *s) {
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return (strlen(s) / 4) + 1;
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}
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static void write_string(const char *s) {
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uint32_t len = length_of_string(s);
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write_int32(len);
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fwrite(s, strlen(s), 1, output_file);
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fwrite("\0\0\0\0", 4 - (strlen(s) % 4), 1, output_file);
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}
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static char *mangle_filename(const char *orig_filename) {
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/* TODO: handle GCOV_PREFIX_STRIP */
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const char *prefix;
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char *filename = 0;
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prefix = getenv("GCOV_PREFIX");
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if (!prefix)
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return strdup(orig_filename);
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filename = malloc(strlen(prefix) + 1 + strlen(orig_filename) + 1);
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strcpy(filename, prefix);
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strcat(filename, "/");
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strcat(filename, orig_filename);
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return filename;
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}
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static void recursive_mkdir(const char *filename) {
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char *pathname;
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int i, e;
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for (i = 1, e = strlen(filename); i != e; ++i) {
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if (filename[i] != '/') continue;
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pathname = malloc(i + 1);
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strncpy(pathname, filename, i);
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pathname[i] = '\0';
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#ifdef _WIN32
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_mkdir(pathname);
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#else
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mkdir(pathname, 0750); /* some of these will fail, ignore it. */
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#endif
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free(pathname);
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}
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}
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/*
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* --- LLVM line counter API ---
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*/
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/* A file in this case is a translation unit. Each .o file built with line
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* profiling enabled will emit to a different file. Only one file may be
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* started at a time.
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*/
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void llvm_gcda_start_file(const char *orig_filename) {
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char *filename;
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filename = mangle_filename(orig_filename);
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recursive_mkdir(filename);
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output_file = fopen(filename, "w+b");
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if (!output_file) {
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const char *cptr = strrchr(orig_filename, '/');
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output_file = fopen(cptr ? cptr + 1 : orig_filename, "w+b");
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if (!output_file) {
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fprintf(stderr, "LLVM profiling runtime: cannot open '%s': ",
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cptr ? cptr + 1 : orig_filename);
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perror("");
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free(filename);
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return;
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}
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}
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/* gcda file, version 404*, stamp LLVM. */
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#ifdef __APPLE__
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fwrite("adcg*204MVLL", 12, 1, output_file);
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#else
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fwrite("adcg*404MVLL", 12, 1, output_file);
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#endif
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#ifdef DEBUG_GCDAPROFILING
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printf("llvmgcda: [%s]\n", orig_filename);
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#endif
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free(filename);
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}
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/* Given an array of pointers to counters (counters), increment the n-th one,
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* where we're also given a pointer to n (predecessor).
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*/
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void llvm_gcda_increment_indirect_counter(uint32_t *predecessor,
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uint64_t **counters) {
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uint64_t *counter;
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uint32_t pred;
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pred = *predecessor;
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if (pred == 0xffffffff)
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return;
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counter = counters[pred];
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/* Don't crash if the pred# is out of sync. This can happen due to threads,
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or because of a TODO in GCOVProfiling.cpp buildEdgeLookupTable(). */
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if (counter)
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++*counter;
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#ifdef DEBUG_GCDAPROFILING
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else
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printf("llvmgcda: increment_indirect_counter counters=%x, pred=%u\n",
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state_table_row, *predecessor);
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#endif
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}
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void llvm_gcda_emit_function(uint32_t ident, const char *function_name) {
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uint32_t len = 3;
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#ifdef DEBUG_GCDAPROFILING
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printf("llvmgcda: function id=%x name=%s\n", ident,
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function_name ? function_name : "NULL");
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#endif
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if (!output_file) return;
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/* function tag */
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fwrite("\0\0\0\1", 4, 1, output_file);
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if (function_name)
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len += 1 + length_of_string(function_name);
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write_int32(len);
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write_int32(ident);
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write_int32(0);
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write_int32(0);
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if (function_name)
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write_string(function_name);
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}
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void llvm_gcda_emit_arcs(uint32_t num_counters, uint64_t *counters) {
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uint32_t i;
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/* Counter #1 (arcs) tag */
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if (!output_file) return;
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fwrite("\0\0\xa1\1", 4, 1, output_file);
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write_int32(num_counters * 2);
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for (i = 0; i < num_counters; ++i)
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write_int64(counters[i]);
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#ifdef DEBUG_GCDAPROFILING
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printf("llvmgcda: %u arcs\n", num_counters);
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for (i = 0; i < num_counters; ++i)
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printf("llvmgcda: %llu\n", (unsigned long long)counters[i]);
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#endif
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}
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void llvm_gcda_end_file() {
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/* Write out EOF record. */
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if (!output_file) return;
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fwrite("\0\0\0\0\0\0\0\0", 8, 1, output_file);
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fclose(output_file);
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output_file = NULL;
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#ifdef DEBUG_GCDAPROFILING
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printf("llvmgcda: -----\n");
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#endif
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}
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@ -16,8 +16,6 @@ endif
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LIBRARYNAME = profile_rt
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LINK_LIBS_IN_SHARED = 1
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SHARED_LIBRARY = 1
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EXTRA_DIST = libprofile.exports
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EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/libprofile.exports
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# Build and install this archive.
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BUILD_ARCHIVE = 1
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@ -1,12 +0,0 @@
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llvm_start_edge_profiling
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llvm_start_opt_edge_profiling
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llvm_start_path_profiling
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llvm_start_basic_block_tracing
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llvm_trace_basic_block
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llvm_increment_path_count
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llvm_decrement_path_count
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llvm_gcda_start_file
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llvm_gcda_increment_indirect_counter
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llvm_gcda_emit_function
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llvm_gcda_emit_arcs
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llvm_gcda_end_file
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