// SPDX-FileCopyrightText: 2020 Florian Märkl // SPDX-License-Identifier: LGPL-3.0-only #include #include "minunit.h" static bool sanitize_instr_acc(void *user, const ut64 k, const void *v) { RzPVector *vec = (RzPVector *)v; void **it; rz_pvector_foreach (vec, it) { RzAnalysisVar *var = *it; RzAnalysisVarAccess *acc; bool found = false; rz_vector_foreach(&var->accesses, acc) { if (acc->offset == (st64)k) { found = true; break; } } mu_assert("instr refs var, but var does not ref instr", found); } return true; } static bool sanitize(RzAnalysisFunction *fcn) { ht_up_foreach(fcn->inst_vars, sanitize_instr_acc, NULL); void **it; rz_pvector_foreach (&fcn->vars, it) { RzAnalysisVar *var = *it; RzAnalysisVarAccess *acc; rz_vector_foreach(&var->accesses, acc) { RzPVector *iaccs = ht_up_find(fcn->inst_vars, acc->offset, NULL); mu_assert("var refs instr but instr does not ref var", rz_pvector_contains(iaccs, var)); } } return true; } #define assert_sane(analysis) \ do { \ RzListIter *ass_it; \ RzAnalysisFunction *ass_fcn; \ rz_list_foreach ((analysis)->fcns, ass_it, ass_fcn) { \ if (!sanitize(ass_fcn)) { \ return false; \ } \ } \ } while (0); static RzAnalysisVar *set_var_str(RzAnalysisFunction *fcn, int delta, char kind, const char *type, int size, bool isarg, const char *name) { RzType *ttype = rz_type_parse_string_single(fcn->analysis->typedb->parser, type, NULL); if (!ttype) { return NULL; } return rz_analysis_function_set_var(fcn, delta, kind, ttype, size, isarg, name); } bool test_rz_analysis_var() { RzAnalysis *analysis = rz_analysis_new(); rz_analysis_use(analysis, "x86"); rz_analysis_set_bits(analysis, 64); RzAnalysisFunction *fcn = rz_analysis_create_function(analysis, "fcn", 0x100, RZ_ANALYSIS_FCN_TYPE_FCN); assert_sane(analysis); // creating variables and renaming RzAnalysisVar *a = set_var_str(fcn, -8, RZ_ANALYSIS_VAR_KIND_BPV, "char *", 8, false, "random_name"); mu_assert_notnull(a, "create a var"); mu_assert_streq(a->name, "random_name", "var name"); bool succ = rz_analysis_var_rename(a, "var_a", false); mu_assert("rename success", succ); mu_assert_streq(a->name, "var_a", "var name after rename"); RzAnalysisVar *b = set_var_str(fcn, -0x10, RZ_ANALYSIS_VAR_KIND_SPV, "char *", 8, false, "var_a"); mu_assert_null(b, "create a var with the same name"); b = set_var_str(fcn, -0x10, RZ_ANALYSIS_VAR_KIND_SPV, "char *", 8, false, "new_var"); mu_assert_notnull(b, "create a var with another name"); mu_assert_streq(b->name, "new_var", "var name"); succ = rz_analysis_var_rename(b, "random_name", false); mu_assert("rename success", succ); mu_assert_streq(b->name, "random_name", "var name after rename"); succ = rz_analysis_var_rename(b, "var_a", false); mu_assert("rename failed", !succ); mu_assert_streq(b->name, "random_name", "var name after failed rename"); succ = rz_analysis_var_rename(b, "var_b", false); mu_assert("rename success", succ); mu_assert_streq(b->name, "var_b", "var name after rename"); RzAnalysisVar *c = set_var_str(fcn, 0x30, RZ_ANALYSIS_VAR_KIND_REG, "int64_t", 8, true, "arg42"); mu_assert_notnull(c, "create a var"); // querying variables RzAnalysisVar *v = rz_analysis_function_get_var(fcn, RZ_ANALYSIS_VAR_KIND_REG, 0x41); mu_assert_null(v, "get no var"); v = rz_analysis_function_get_var(fcn, RZ_ANALYSIS_VAR_KIND_REG, 0x30); mu_assert_ptreq(v, c, "get var (reg)"); v = rz_analysis_function_get_var(fcn, RZ_ANALYSIS_VAR_KIND_SPV, -0x10); mu_assert_ptreq(v, b, "get var (sp)"); v = rz_analysis_function_get_var(fcn, RZ_ANALYSIS_VAR_KIND_BPV, -8); mu_assert_ptreq(v, a, "get var (bp)"); v = rz_analysis_function_get_var_byname(fcn, "random_name"); mu_assert_null(v, "nonsense name"); v = rz_analysis_function_get_var_byname(fcn, "var_a"); mu_assert_ptreq(v, a, "get var by name"); // accesses rz_analysis_var_set_access(a, "rsp", 0x120, RZ_ANALYSIS_VAR_ACCESS_TYPE_READ, 42); rz_analysis_var_set_access(a, "rbp", 0x130, RZ_ANALYSIS_VAR_ACCESS_TYPE_WRITE, 13); rz_analysis_var_set_access(b, "rsp", 0x120, RZ_ANALYSIS_VAR_ACCESS_TYPE_WRITE, 123); rz_analysis_var_set_access(b, "rbp", 0x10, RZ_ANALYSIS_VAR_ACCESS_TYPE_WRITE, -100); st64 stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -0x10, 0x12345); mu_assert_eq(stackptr, ST64_MAX, "unset stackptr"); RzPVector *used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x123); mu_assert("no used vars", !used_vars || rz_pvector_len(used_vars)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x130); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x130); mu_assert_eq(stackptr, 13, "stackptr"); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, 123123, 0x130); mu_assert_eq(stackptr, ST64_MAX, "stackptr"); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x120); mu_assert_eq(rz_pvector_len(used_vars), 2, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); mu_assert("used vars", rz_pvector_contains(used_vars, b)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -0x10, 0x120); mu_assert_eq(stackptr, 123, "stackptr"); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x120); mu_assert_eq(stackptr, 42, "stackptr"); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x10); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, b)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -0x10, 0x10); mu_assert_eq(stackptr, -100, "stackptr"); assert_sane(analysis); // relocate function rz_analysis_function_relocate(fcn, 0xffffffffffff0100UL); assert_sane(analysis); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0xffffffffffff0130UL); // addresses should stay the same mu_assert("no used vars", !used_vars || rz_pvector_len(used_vars)); rz_analysis_var_set_access(a, "rbp", 0xffffffffffff0130UL, RZ_ANALYSIS_VAR_ACCESS_TYPE_READ, 42); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0xffffffffffff0130UL); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x123); mu_assert("no used vars", !used_vars || rz_pvector_len(used_vars)); rz_analysis_var_set_access(a, "rbp", 0x123, RZ_ANALYSIS_VAR_ACCESS_TYPE_READ, 42); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x123); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x130); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x120); mu_assert_eq(rz_pvector_len(used_vars), 2, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); mu_assert("used vars", rz_pvector_contains(used_vars, b)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -0x10, 0x120); mu_assert_eq(stackptr, 123, "stackptr"); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x120); mu_assert_eq(stackptr, 42, "stackptr"); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x10); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, b)); rz_analysis_function_relocate(fcn, 0x8000000000000010); assert_sane(analysis); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x8000000000000100); mu_assert("no used vars", !used_vars || rz_pvector_len(used_vars)); rz_analysis_var_set_access(a, "rbp", 0x8000000000000100, RZ_ANALYSIS_VAR_ACCESS_TYPE_READ, 987321); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x8000000000000100); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x8000000000000100); mu_assert_eq(stackptr, 987321, "stackptr"); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x7ffffffffffffe00); mu_assert("no used vars", !used_vars || rz_pvector_len(used_vars)); rz_analysis_var_set_access(a, "rbp", 0x7ffffffffffffe00, RZ_ANALYSIS_VAR_ACCESS_TYPE_READ, 777); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x7ffffffffffffe00); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x7ffffffffffffe00); mu_assert_eq(stackptr, 777, "stackptr"); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0xffffffffffff0130UL); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x123); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x130); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x120); mu_assert_eq(rz_pvector_len(used_vars), 2, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, a)); mu_assert("used vars", rz_pvector_contains(used_vars, b)); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -0x10, 0x120); mu_assert_eq(stackptr, 123, "stackptr"); stackptr = rz_analysis_function_get_var_stackptr_at(fcn, -8, 0x120); mu_assert_eq(stackptr, 42, "stackptr"); assert_sane(analysis); rz_analysis_var_delete(a); assert_sane(analysis); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0xffffffffffff0130UL); mu_assert("used vars count", !used_vars || !rz_pvector_len(used_vars)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x123); mu_assert("used vars count", !used_vars || !rz_pvector_len(used_vars)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x130); mu_assert("used vars count", !used_vars || !rz_pvector_len(used_vars)); used_vars = rz_analysis_function_get_vars_used_at(fcn, 0x120); mu_assert_eq(rz_pvector_len(used_vars), 1, "used vars count"); mu_assert("used vars", rz_pvector_contains(used_vars, b)); rz_analysis_var_delete(b); rz_analysis_var_delete(c); rz_analysis_free(analysis); mu_end; } int all_tests() { mu_run_test(test_rz_analysis_var); return tests_passed != tests_run; } mu_main(all_tests)