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hongxuchenhongxuchen
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separate this clang rep from llvm_misc
0 parents  commit c5b34e0

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‎.gitignore

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*.o
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*.out
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*.pyc
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*.so
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*.ll
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*.bc

‎c/Makefile

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# -*- mode: makefile-gmake; -*-
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LLVM_COMPONENTS := \
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jit interpreter irreader nativecodegen codegen \
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bitreader bitwriter ipo linker instrumentation core mc
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CLANG_LIBS := \
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-lclang -lclangFrontend -lclangFrontendTool -lclangDriver -lclangSerialization \
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-lclangCodeGen -lclangParse -lclangSema -lclangEdit \
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-lclangAnalysis -lclangAST -lclangLex -lclangBasic\
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-lclangRewriteCore -lclangRewriteFrontend -lclangStaticAnalyzerFrontend \
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-lclangStaticAnalyzerCheckers -lclangStaticAnalyzerCore -lclangARCMigrate
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CFLAGS += $(shell llvm-config-3.4 --cflags) -std=c99
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LDFLAGS += $(shell llvm-config-3.4 --ldflags --libs $(LLVM_COMPONENTS))
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SRCS := $(wildcard *.c)
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OBJS := $(SRCS:.c=.o)
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EXES := $(SRCS:.c=.out)
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all: $(EXES)
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.c.o:
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$(CC) $(CFLAGS) -c $< -o $@
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.o.out:
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$(CC) $< $(CLANG_LIBS) $(LDFLAGS) -o $@
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clean:
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$(RM) *.out *.o

‎c/SymbolScanner.c

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#include <clang-c/Index.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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enum CXChildVisitResult foundChild(CXCursor cursor, CXCursor parent,
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CXClientData client_data) {
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if (clang_getCursorKind(cursor) == CXCursor_CallExpr) {
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printf("-%s\n", clang_getCString(clang_getCursorSpelling(cursor)));
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}
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if (clang_isDeclaration(clang_getCursorKind(cursor)) &&
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(clang_getCursorLinkage(cursor) == CXLinkage_External ||
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clang_getCursorLinkage(cursor) == CXLinkage_Internal)) {
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CXFile file;
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const char *filename, *wantFilename;
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CXSourceLocation cloc;
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cloc = clang_getCursorLocation(cursor);
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clang_getInstantiationLocation(cloc, &file, NULL, NULL, NULL);
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filename = clang_getCString(clang_getFileName(file));
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wantFilename = (const char *)client_data;
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if (!filename || strcmp(wantFilename, filename))
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return CXChildVisit_Recurse;
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if (clang_getCursorLinkage(cursor) == CXLinkage_External)
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printf("+%s\n", clang_getCString(clang_getCursorSpelling(cursor)));
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else
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printf("?%s\n", clang_getCString(clang_getCursorSpelling(cursor)));
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}
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return CXChildVisit_Recurse;
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}
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int main(int argc, char **argv) {
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CXTranslationUnit tu;
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CXIndex idx;
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CXCursor cur;
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char *filename;
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if (argc != 2) {
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printf("Usage: %s source_filename.c\n", argv[0]);
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return EXIT_FAILURE;
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}
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filename = argv[1];
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idx = clang_createIndex(1, 1);
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// FIXME, obvious
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const char *args[] = {"-I/usr/lib/llvm-3.4/include"};
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tu = clang_createTranslationUnitFromSourceFile(idx, filename, 1, args, 0,
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NULL);
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cur = clang_getTranslationUnitCursor(tu);
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clang_visitChildren(cur, foundChild, strdup(filename));
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return EXIT_SUCCESS;
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}

‎c/clang_visit.c

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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <clang-c/Index.h>
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#define MAX_VAR_LENGTH 128
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enum MATCHING_TYPE {
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MATCH_DEFINE,
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MATCH_DECLARE
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};
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struct MatchPatternStruct {
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int type;
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char name[MAX_VAR_LENGTH];
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CXCursor result_cursor;
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};
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typedef struct MatchPatternStruct MatchPattern;
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void init_match_pattern(MatchPattern* m, enum MATCHING_TYPE type,
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const char* name) {
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m->type = type;
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strncpy(m->name, name, MAX_VAR_LENGTH);
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m->result_cursor = clang_getNullCursor();
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}
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int compare_match_pattern(MatchPattern* a, MatchPattern* b) {
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return ((a->type == b->type) && (strcmp(a->name, b->name) == 0));
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}
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enum CXChildVisitResult visitor_f(CXCursor cursor, CXCursor parent,
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CXClientData clientData) {
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CXFile file;
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unsigned int line, column, offset;
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MatchPattern* mp = (MatchPattern*)clientData;
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// if corresponding file is invalid, then visit sibling
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clang_getInstantiationLocation(clang_getCursorLocation(cursor), &file, &line,
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&column, &offset);
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if (!clang_getFileName(file).data) {
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//printf("visitor(): no file data, visit sibling\n");
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return CXChildVisit_Continue;
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}
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// print if the cursor matches the clientData
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const char* info = clang_getCString(clang_getCursorSpelling(cursor));
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if ((strlen(info) > 0) && (strcmp(mp->name, info) == 0)) {
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const char* kind = clang_getCString(
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clang_getCursorKindSpelling(clang_getCursorKind(cursor)));
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const char* fname = clang_getCString(clang_getFileName(file));
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printf("%s: (%d, %d) %s\t: %s\n", fname, line, column, kind, info);
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}
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return CXChildVisit_Recurse;
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}
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int main(int argc, char* argv[]) {
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if (argc < 2) {
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fprintf(stderr, "Usage:\n\t <-s symbol> <-f file1>[,file2]...\n");
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return 1;
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}
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int c;
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char* ast_files[128];
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char* p;
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char* tmp_files;
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CXTranslationUnit tu_array[64];
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char* symbol;
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while ((c = getopt(argc, argv, "s:f:")) != -1) {
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switch (c) {
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case 's':
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symbol = optarg;
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break;
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case 'f':
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tmp_files = optarg;
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break;
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default:
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printf("unknow option -%c.\n", optopt);
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}
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}
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if (symbol == NULL) {
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fprintf(stderr, "No symbol specified, exit.\n");
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return 1;
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}
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p = strtok(tmp_files, ",");
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int fcnt = 0;
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while (p != NULL) {
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ast_files[fcnt++] = p;
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p = strtok(NULL, ",");
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}
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// debug print
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printf("query symbol '%s'\n", symbol);
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printf("total %d ast files:\n", fcnt);
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for (int i = 0; i < fcnt; i++) printf("\t%s\n", ast_files[i]);
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CXIndex cidx = clang_createIndex(0, 0);
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MatchPattern m;
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init_match_pattern(&m, MATCH_DEFINE, symbol);
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// TODO hard code
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const char* command_line_args[] = {
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"-I/usr/include/x86_64-linux-gnu", "-I/usr/lib/gcc/x86_64-linux-gnu/4.4.7/include", "-I/usr/include/c++/4.4", "-I/usr/include/c++/4.4/x86_64-linux-gnu", "-I/usr/lib/llvm-3.3/include"
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};
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for (int i = 0; i < fcnt; i++) {
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tu_array[i] = clang_parseTranslationUnit(
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cidx, ast_files[i], command_line_args, 3, 0, 0,
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CXTranslationUnit_DetailedPreprocessingRecord);
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CXCursor tu_cur = clang_getTranslationUnitCursor(tu_array[i]);
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clang_visitChildren(tu_cur, visitor_f, &m);
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}
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}

‎c/diagnose.c

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#include <clang-c/Index.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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int main(int argc, char* argv[]) {
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CXIndex Index = clang_createIndex(0, 0);
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CXTranslationUnit TU = clang_parseTranslationUnit(
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Index, 0, (const char**)argv, argc, 0, 0, CXTranslationUnit_None);
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unsigned I = 0, J;
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unsigned N = clang_getNumDiagnostics(TU);
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for (I = 1; I != N; ++I) {
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CXDiagnostic diag = clang_getDiagnostic(TU, I);
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enum CXDiagnosticSeverity sev = clang_getDiagnosticSeverity(diag);
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switch (sev) {
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case 0:
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assert(0 && "impossible");
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break;
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case 1:
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fputs("[note] ", stderr);
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break;
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case 2:
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fputs("[warning] ", stderr);
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break;
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case 3:
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fputs("[error] ", stderr);
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break;
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case 4:
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fputs("[fatal error] ", stderr);
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break;
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}
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fputs(clang_getCString(clang_getDiagnosticSpelling(diag)), stderr);
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fputs("\n", stderr);
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unsigned line, column, offset;
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CXFile error_file;
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unsigned ranges;
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FILE* source;
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const char* err_filename = NULL;
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char* abs_filename = NULL;
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if ((ranges = clang_getDiagnosticNumRanges(diag)) >= 1) {
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CXSourceRange rangeset = clang_getDiagnosticRange(diag, 0);
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clang_getSpellingLocation(clang_getRangeStart(rangeset), &error_file,
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&line, &column, &offset);
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err_filename = clang_getCString(clang_getFileName(error_file));
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fprintf(stderr, "[BEGIN] %s:%d:%d\n", err_filename, line, column);
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clang_getSpellingLocation(clang_getRangeEnd(rangeset), &error_file, &line,
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&column, &offset);
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err_filename = clang_getCString(clang_getFileName(error_file));
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fprintf(stderr, "[END] %s:%d:%d\n", err_filename, line, column);
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} else {
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clang_getSpellingLocation(clang_getDiagnosticLocation(diag), &error_file,
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&line, &column, &offset);
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err_filename = clang_getCString(clang_getFileName(error_file));
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abs_filename = realpath(err_filename, NULL);
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fprintf(stderr, "%s:%d:%d\n", abs_filename, line, column);
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free(abs_filename);
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source = fopen(err_filename, "r");
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int hold;
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fseek(source, offset - column + 1, SEEK_SET);
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while ((hold = getc(source)) != '\n') {
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putchar(hold);
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}
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printf("\n");
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for (J = 1; J < column; J++) {
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printf(" ");
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}
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printf("^\n\n");
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fclose(source);
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}
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}
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clang_disposeTranslationUnit(TU);
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clang_disposeIndex(Index);
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return 0;
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}

‎c/test_childvisitor.c

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#include <clang-c/Index.h>
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enum CXChildVisitResult visitor(CXCursor cursor, CXCursor parent, CXClientData data)
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{
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return CXChildVisit_Continue;
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}
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int main(int argc, char * argv[])
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{
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CXIndex index = clang_createIndex(0, 0);
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const char* const* args = (const char* const*)argv;
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CXTranslationUnit txUnit = clang_parseTranslationUnit(index, 0, args, argc, 0, 0, CXTranslationUnit_None);
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CXCursor cur = clang_getTranslationUnitCursor(txUnit);
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clang_visitChildren(cur, visitor, NULL);
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clang_disposeTranslationUnit(txUnit);
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clang_disposeIndex(index);
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return 0;
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}

‎c/test_inclusionVisitor.c

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#include <clang-c/Index.h>
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void inclusionVisitor(CXFile file, CXSourceLocation* srcLocs,
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unsigned numSrcLocs, CXClientData data) {
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CXString fname = clang_getFileName(file);
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printf("Included:%s\n", clang_getCString(fname));
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clang_disposeString(fname);
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}
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int main(int argc, char* argv[]) {
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CXIndex index = clang_createIndex(0, 0);
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const char* const* args = (const char * const*)argv;
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CXTranslationUnit txUnit = clang_parseTranslationUnit(
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index, 0, args, argc, 0, 0, CXTranslationUnit_None);
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clang_getInclusions(txUnit, inclusionVisitor, NULL);
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clang_disposeTranslationUnit(txUnit);
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clang_disposeIndex(index);
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return 0;
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}

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