SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / src / common / filter / filter-grammar-test.c

diff --git a/src/common/filter/filter-grammar-test.c b/src/common/filter/filter-grammar-test.c
new file mode 100644 (file)
index 0000000..2804053
--- /dev/null
+++ b/src/common/filter/filter-grammar-test.c
@@ -0,0 +1,126 @@
+/*
+ * filter-grammar-test.c
+ *
+ * LTTng filter grammar test
+ *
+ * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <inttypes.h>
+#include "filter-ast.h"
+#include "filter-parser.h"
+#include "filter-bytecode.h"
+
+int main(int argc, char **argv)
+{
+       struct filter_parser_ctx *ctx;
+       int ret;
+       int print_xml = 0, generate_ir = 0, generate_bytecode = 0,
+               print_bytecode = 0;
+       int i;
+
+       for (i = 1; i < argc; i++) {
+               if (strcmp(argv[i], "-p") == 0)
+                       print_xml = 1;
+               else if (strcmp(argv[i], "-i") == 0)
+                       generate_ir = 1;
+               else if (strcmp(argv[i], "-b") == 0)
+                       generate_bytecode = 1;
+               else if (strcmp(argv[i], "-d") == 0)
+                       filter_parser_debug = 1;
+               else if (strcmp(argv[i], "-B") == 0)
+                       print_bytecode = 1;
+       }
+
+       ctx = filter_parser_ctx_alloc(stdin);
+       if (!ctx) {
+               fprintf(stderr, "Error allocating parser\n");
+               goto alloc_error;
+       }
+       ret = filter_parser_ctx_append_ast(ctx);
+       if (ret) {
+               fprintf(stderr, "Parse error\n");
+               goto parse_error;
+       }
+       if (print_xml) {
+               ret = filter_visitor_print_xml(ctx, stdout, 0);
+               if (ret) {
+                       fflush(stdout);
+                       fprintf(stderr, "XML print error\n");
+                       goto parse_error;
+               }
+       }
+       if (generate_ir) {
+               printf("Generating IR... ");
+               fflush(stdout);
+               ret = filter_visitor_ir_generate(ctx);
+               if (ret) {
+                       fprintf(stderr, "Generate IR error\n");
+                       goto parse_error;
+               }
+               printf("done\n");
+
+               printf("Validating IR... ");
+               fflush(stdout);
+               ret = filter_visitor_ir_check_binary_op_nesting(ctx);
+               if (ret) {
+                       goto parse_error;
+               }
+               printf("done\n");
+       }
+       if (generate_bytecode) {
+               printf("Generating bytecode... ");
+               fflush(stdout);
+               ret = filter_visitor_bytecode_generate(ctx);
+               if (ret) {
+                       fprintf(stderr, "Generate bytecode error\n");
+                       goto parse_error;
+               }
+               printf("done\n");
+               printf("Size of bytecode generated: %u bytes.\n",
+                       bytecode_get_len(&ctx->bytecode->b));
+       }
+
+       if (print_bytecode) {
+               unsigned int bytecode_len, len, i;
+
+               len = bytecode_get_len(&ctx->bytecode->b);
+               bytecode_len = ctx->bytecode->b.reloc_table_offset;
+               printf("Bytecode:\n");
+               for (i = 0; i < bytecode_len; i++) {
+                       printf("0x%X ",
+                               ((uint8_t *) ctx->bytecode->b.data)[i]);
+               }
+               printf("\n");
+               printf("Reloc table:\n");
+               for (i = bytecode_len; i < len;) {
+                       printf("{ 0x%X, ",
+                               *(uint16_t *) &ctx->bytecode->b.data[i]);
+                       i += sizeof(uint16_t);
+                       printf("%s } ", &((char *) ctx->bytecode->b.data)[i]);
+                       i += strlen(&((char *) ctx->bytecode->b.data)[i]) + 1;
+               }
+               printf("\n");
+       }
+
+       filter_bytecode_free(ctx);
+       filter_ir_free(ctx);
+       filter_parser_ctx_free(ctx);
+       return 0;
+
+parse_error:
+       filter_bytecode_free(ctx);
+       filter_ir_free(ctx);
+       filter_parser_ctx_free(ctx);
+alloc_error:
+       exit(EXIT_FAILURE);
+}