From 3ebea2cf10a8b0bdddff91b7c639afb1d56e2f0b Mon Sep 17 00:00:00 2001 From: notaz Date: Wed, 25 Dec 2013 04:35:36 +0200 Subject: [PATCH] improved type handling and cast generation --- tools/cmpmrg_text.c | 14 +-- tools/protoparse.h | 143 ++++++++++++++++----------- tools/translate.c | 228 ++++++++++++++++++++++++++------------------ 3 files changed, 229 insertions(+), 156 deletions(-) diff --git a/tools/cmpmrg_text.c b/tools/cmpmrg_text.c index 5a0d296..987443e 100644 --- a/tools/cmpmrg_text.c +++ b/tools/cmpmrg_text.c @@ -287,11 +287,11 @@ static int handle_pad(uint8_t *d_obj, uint8_t *d_exe, int maxlen) { static const uint8_t p7[7] = { 0x8d, 0xa4, 0x24, 0x00, 0x00, 0x00, 0x00 }; static const uint8_t p6[6] = { 0x8d, 0x9b, 0x00, 0x00, 0x00, 0x00 }; - static const uint8_t p5[5] = { 0x05, 0x00, 0x00, 0x00, 0x00 }; - static const uint8_t p4[4] = { 0x8d, 0x64, 0x24, 0x00 }; - static const uint8_t p3[3] = { 0x8d, 0x49, 0x00 }; - static const uint8_t p2[2] = { 0x8b, 0xff }; - static const uint8_t p1[1] = { 0x90 }; + static const uint8_t p5[5] = { 0x05, 0x00, 0x00, 0x00, 0x00 }; // add eax, 0 + static const uint8_t p4[4] = { 0x8d, 0x64, 0x24, 0x00 }; // lea + static const uint8_t p3[3] = { 0x8d, 0x49, 0x00 }; // lea ecx, [ecx] + static const uint8_t p2[2] = { 0x8b, 0xff }; // mov edi, edi + static const uint8_t p1[1] = { 0x90 }; // nop int len; int i; @@ -494,14 +494,14 @@ int main(int argc, char *argv[]) f_obj = fopen(argv[1], "r+b"); if (f_obj == NULL) { - fprintf(stderr, "%s", argv[1]); + fprintf(stderr, "%s: ", argv[1]); perror(""); return 1; } f_exe = fopen(argv[2], "r"); if (f_exe == NULL) { - fprintf(stderr, "%s", argv[2]); + fprintf(stderr, "%s: ", argv[2]); perror(""); return 1; } diff --git a/tools/protoparse.h b/tools/protoparse.h index 3a51438..c7d41dc 100644 --- a/tools/protoparse.h +++ b/tools/protoparse.h @@ -1,16 +1,25 @@ struct parsed_proto; +struct parsed_type { + char *name; + unsigned int is_array:1; + unsigned int is_ptr:1; +}; + struct parsed_proto_arg { char *reg; - char *type; + struct parsed_type type; struct parsed_proto *fptr; void *datap; }; struct parsed_proto { char name[256]; - char *ret_type; + union { + struct parsed_type ret_type; + struct parsed_type type; + }; struct parsed_proto_arg arg[16]; int argc; int argc_stack; @@ -19,7 +28,6 @@ struct parsed_proto { unsigned int is_stdcall:1; unsigned int is_vararg:1; unsigned int is_fptr:1; - unsigned int is_array:1; }; static const char *hdrfn; @@ -108,37 +116,31 @@ static const char *known_type_mod[] = { "const", "signed", "unsigned", + "struct", + "enum", }; -static const char *known_types[] = { - "void *", - "char *", - "FILE *", - "int *", - "__int8 *", - "__int16 *", - "char", - "__int8", - "__int16", - "__int32", - "int", - "bool", - "void", - "BYTE", - "WORD", - "BOOL", - "DWORD", - "_DWORD", - "HMODULE", +static const char *known_ptr_types[] = { "HANDLE", + "HMODULE", + "HINSTANCE", "HWND", - "LANGID", - "LPCSTR", - "size_t", + "HDC", + "HGDIOBJ", + "PLONG", + "PDWORD", + "PVOID", + "PCVOID", +}; + +static const char *ignored_keywords[] = { + "extern", + "WINBASEAPI", + "WINUSERAPI", }; // returns ptr to char after type ends -static const char *typecmp(const char *n, const char *t) +static int typecmp(const char *n, const char *t) { for (; *t != 0; n++, t++) { while (n[0] == ' ' && (n[1] == ' ' || n[1] == '*')) @@ -146,20 +148,17 @@ static const char *typecmp(const char *n, const char *t) while (t[0] == ' ' && (t[1] == ' ' || t[1] == '*')) t++; if (*n != *t) - return NULL; + return *n - *t; } - return n; + return 0; } -static char *check_type(const char *name, int *len_out) +static const char *skip_type_mod(const char *n) { - const char *n = name, *n1; int len; int i; - *len_out = 0; - for (i = 0; i < ARRAY_SIZE(known_type_mod); i++) { len = strlen(known_type_mod[i]); if (strncmp(n, known_type_mod[i], len) != 0) @@ -171,16 +170,47 @@ static char *check_type(const char *name, int *len_out) i = 0; } - for (i = 0; i < ARRAY_SIZE(known_types); i++) { - n1 = typecmp(n, known_types[i]); - if (n1 == NULL) + return n; +} + +static int check_type(const char *name, struct parsed_type *type) +{ + const char *n, *n1; + int ret = -1; + int i; + + n = skip_type_mod(name); + + for (i = 0; i < ARRAY_SIZE(known_ptr_types); i++) { + if (typecmp(n, known_ptr_types[i])) continue; - *len_out = n1 - name; - return strndup(name, *len_out); + type->is_ptr = 1; + break; } - return NULL; + if (n[0] == 'L' && n[1] == 'P') + type->is_ptr = 1; + + // assume single word + while (!my_isblank(*n) && !my_issep(*n)) + n++; + + while (1) { + n1 = n; + while (my_isblank(*n)) + n++; + if (*n == '*') { + type->is_ptr = 1; + n++; + continue; + } + break; + } + + ret = n1 - name; + type->name = strndup(name, ret); + return ret; } /* args are always expanded to 32bit */ @@ -208,11 +238,10 @@ static int parse_protostr(char *protostr, struct parsed_proto *pp) char regparm[16]; char buf[256]; char cconv[32]; - char *kt; int xarg = 0; char *p, *p1; + int i, l; int ret; - int i; p = sskip(protostr); if (p[0] == '/' && p[1] == '/') { @@ -227,18 +256,18 @@ static int parse_protostr(char *protostr, struct parsed_proto *pp) p1[0] = p1[1] = ' '; } - if (strncmp(p, "extern ", 7) == 0) - p = sskip(p + 7); - if (strncmp(p, "WINBASEAPI ", 11) == 0) - p = sskip(p + 11); + for (i = 0; i < ARRAY_SIZE(ignored_keywords); i++) { + l = strlen(ignored_keywords[i]); + if (!strncmp(p, ignored_keywords[i], l) && my_isblank(p[l])) + p = sskip(p + l + 1); + } - kt = check_type(p, &ret); - if (kt == NULL) { + ret = check_type(p, &pp->ret_type); + if (ret <= 0) { printf("%s:%d:%zd: unhandled return in '%s'\n", hdrfn, hdrfline, (p - protostr) + 1, protostr); return -1; } - pp->ret_type = kt; p = sskip(p + ret); if (!strchr(p, ')')) { @@ -254,7 +283,7 @@ static int parse_protostr(char *protostr, struct parsed_proto *pp) p1 = strchr(p, ']'); if (p1 != NULL) { p = p1 + 1; - pp->is_array = 1; + pp->ret_type.is_array = 1; } return p - protostr; } @@ -371,13 +400,12 @@ static int parse_protostr(char *protostr, struct parsed_proto *pp) xarg++; p1 = p; - kt = check_type(p, &ret); - if (kt == NULL) { + ret = check_type(p, &arg->type); + if (ret <= 0) { printf("%s:%d:%zd: unhandled type for arg%d\n", hdrfn, hdrfline, (p - protostr) + 1, xarg); return -1; } - arg->type = kt; p = sskip(p + ret); if (*p == '(') { @@ -390,7 +418,8 @@ static int parse_protostr(char *protostr, struct parsed_proto *pp) return -1; } // we'll treat it as void * for non-calls - arg->type = "void *"; + arg->type.name = "void *"; + arg->type.is_ptr = 1; p = p1 + ret; } @@ -471,11 +500,11 @@ static void proto_release(struct parsed_proto *pp) for (i = 0; i < pp->argc; i++) { if (pp->arg[i].reg != NULL) free(pp->arg[i].reg); - if (pp->arg[i].type != NULL) - free(pp->arg[i].type); + if (pp->arg[i].type.name != NULL) + free(pp->arg[i].type.name); if (pp->arg[i].fptr != NULL) free(pp->arg[i].fptr); } - if (pp->ret_type != NULL) - free(pp->ret_type); + if (pp->ret_type.name != NULL) + free(pp->ret_type.name); } diff --git a/tools/translate.c b/tools/translate.c index 8c52603..7da8be5 100644 --- a/tools/translate.c +++ b/tools/translate.c @@ -457,11 +457,9 @@ static int guess_lmod_from_name(struct parsed_opr *opr) return 0; } -static int guess_lmod_from_c_type(struct parsed_opr *opr, const char *c_type) +static int guess_lmod_from_c_type(enum opr_lenmod *lmod, + const struct parsed_type *c_type) { - static const char *ptr_types[] = { - "LPCSTR", - }; static const char *dword_types[] = { "int", "_DWORD", "DWORD", "HANDLE", "HWND", "HMODULE", }; @@ -471,44 +469,37 @@ static int guess_lmod_from_c_type(struct parsed_opr *opr, const char *c_type) static const char *byte_types[] = { "char", "__int8", "unsigned __int8", "BYTE", }; + const char *n; int i; - if (strchr(c_type, '*')) { - opr->lmod = OPLM_DWORD; - opr->is_ptr = 1; + if (c_type->is_ptr) { + *lmod = OPLM_DWORD; return 1; } - for (i = 0; i < ARRAY_SIZE(dword_types); i++) { - if (IS(c_type, dword_types[i])) { - opr->lmod = OPLM_DWORD; - return 1; - } - } + n = skip_type_mod(c_type->name); - for (i = 0; i < ARRAY_SIZE(ptr_types); i++) { - if (IS(c_type, ptr_types[i])) { - opr->lmod = OPLM_DWORD; - opr->is_ptr = 1; + for (i = 0; i < ARRAY_SIZE(dword_types); i++) { + if (IS(n, dword_types[i])) { + *lmod = OPLM_DWORD; return 1; } } for (i = 0; i < ARRAY_SIZE(word_types); i++) { - if (IS(c_type, word_types[i])) { - opr->lmod = OPLM_WORD; + if (IS(n, word_types[i])) { + *lmod = OPLM_WORD; return 1; } } for (i = 0; i < ARRAY_SIZE(byte_types); i++) { - if (IS(c_type, byte_types[i])) { - opr->lmod = OPLM_BYTE; + if (IS(n, byte_types[i])) { + *lmod = OPLM_BYTE; return 1; } } - anote("unhandled C type '%s' for '%s'\n", c_type, opr->name); return 0; } @@ -678,9 +669,12 @@ static int parse_operand(struct parsed_opr *opr, opr->lmod = OPLM_DWORD; opr->is_ptr = 1; } - else if (opr->lmod == OPLM_UNSPEC) - guess_lmod_from_c_type(opr, pp.ret_type); - opr->is_array = pp.is_array; + else if (opr->lmod == OPLM_UNSPEC) { + if (!guess_lmod_from_c_type(&opr->lmod, &pp.type)) + anote("unhandled C type '%s' for '%s'\n", pp.type.name, opr->name); + } + opr->is_ptr = pp.type.is_ptr; + opr->is_array = pp.type.is_array; } proto_release(&pp); @@ -954,6 +948,15 @@ static void parse_op(struct parsed_op *op, char words[16][256], int wordc) op->operand[0].lmod = OPLM_DWORD; break; + // alignment + case OP_MOV: + if (op->operand[0].type == OPT_REG && op->operand[1].type == OPT_REG + && op->operand[0].reg == xDI && op->operand[1].reg == xDI) + { + op->flags |= OPF_RMD; + } + break; + default: break; } @@ -1142,8 +1145,9 @@ static struct parsed_equ *equ_find(struct parsed_op *po, const char *name, static void stack_frame_access(struct parsed_op *po, enum opr_lenmod lmod, char *buf, size_t buf_size, - const char *name, int is_src, int is_lea) + const char *name, const char *cast, int is_src, int is_lea) { + enum opr_lenmod tmp_lmod = OPLM_UNSPEC; const char *prefix = ""; char ofs_reg[16] = { 0, }; struct parsed_equ *eq; @@ -1209,7 +1213,11 @@ static void stack_frame_access(struct parsed_op *po, case OPLM_DWORD: if (offset & 3) ferr(po, "unaligned arg access\n"); - snprintf(buf, buf_size, "%sa%d", is_src ? "(u32)" : "", i + 1); + if (cast[0]) + prefix = cast; + else if (is_src) + prefix = "(u32)"; + snprintf(buf, buf_size, "%sa%d", prefix, i + 1); break; default: @@ -1217,13 +1225,10 @@ static void stack_frame_access(struct parsed_op *po, } // common problem - if ((offset & 3) - && (strstr(g_func_pp.arg[i].type, "int8") - || strstr(g_func_pp.arg[i].type, "int16"))) - { + guess_lmod_from_c_type(&tmp_lmod, &g_func_pp.arg[i].type); + if ((offset & 3) && tmp_lmod != OPLM_DWORD) ferr(po, "bp_arg arg/w offset %d and type '%s'\n", - offset, g_func_pp.arg[i].type); - } + offset, g_func_pp.arg[i].type.name); } else { if (g_stack_fsz == 0) @@ -1235,6 +1240,8 @@ static void stack_frame_access(struct parsed_op *po, if (is_lea) prefix = "(u32)&"; + else + prefix = cast; switch (lmod) { @@ -1275,13 +1282,23 @@ static void stack_frame_access(struct parsed_op *po, } } +static void check_label_read_ref(struct parsed_op *po, const char *name) +{ + if (IS_START(name, "sub_")) + ferr(po, "func reference?\n"); +} + static char *out_src_opr(char *buf, size_t buf_size, - struct parsed_op *po, struct parsed_opr *popr, int is_lea) + struct parsed_op *po, struct parsed_opr *popr, const char *cast, + int is_lea) { char tmp1[256], tmp2[256]; char expr[256]; int ret; + if (cast == NULL) + cast = ""; + switch (popr->type) { case OPT_REG: if (is_lea) @@ -1289,7 +1306,7 @@ static char *out_src_opr(char *buf, size_t buf_size, switch (popr->lmod) { case OPLM_DWORD: - snprintf(buf, buf_size, "%s", opr_reg_p(po, popr)); + snprintf(buf, buf_size, "%s%s", cast, opr_reg_p(po, popr)); break; case OPLM_WORD: snprintf(buf, buf_size, "(u16)%s", opr_reg_p(po, popr)); @@ -1308,7 +1325,7 @@ static char *out_src_opr(char *buf, size_t buf_size, case OPT_REGMEM: if (parse_stack_el(popr->name, NULL)) { stack_frame_access(po, popr->lmod, buf, buf_size, - popr->name, 1, is_lea); + popr->name, cast, 1, is_lea); break; } @@ -1327,31 +1344,38 @@ static char *out_src_opr(char *buf, size_t buf_size, break; } - snprintf(buf, buf_size, "%s(%s)", - lmod_cast_u_ptr(po, popr->lmod), expr); + if (cast[0] == 0) + cast = lmod_cast_u_ptr(po, popr->lmod); + snprintf(buf, buf_size, "%s(%s)", cast, expr); break; case OPT_LABEL: + check_label_read_ref(po, popr->name); + if (cast[0] == 0 && popr->is_ptr) + cast = "(u32)"; if (is_lea) snprintf(buf, buf_size, "(u32)&%s", popr->name); else - snprintf(buf, buf_size, "%s%s%s", - popr->is_ptr ? "(u32)" : "", - popr->name, + snprintf(buf, buf_size, "%s%s%s", cast, popr->name, popr->is_array ? "[0]" : ""); break; case OPT_OFFSET: + check_label_read_ref(po, popr->name); + if (cast[0] == 0) + cast = "(u32)"; if (is_lea) ferr(po, "lea an offset?\n"); - snprintf(buf, buf_size, "(u32)&%s", popr->name); + snprintf(buf, buf_size, "%s&%s", cast, popr->name); break; case OPT_CONST: if (is_lea) ferr(po, "lea from const?\n"); - printf_number(buf, buf_size, popr->val); + snprintf(buf, buf_size, "%s", cast); + ret = strlen(buf); + printf_number(buf + ret, buf_size - ret, popr->val); break; default: @@ -1389,11 +1413,11 @@ static char *out_dst_opr(char *buf, size_t buf_size, case OPT_REGMEM: if (parse_stack_el(popr->name, NULL)) { stack_frame_access(po, popr->lmod, buf, buf_size, - popr->name, 0, 0); + popr->name, "", 0, 0); break; } - return out_src_opr(buf, buf_size, po, popr, 0); + return out_src_opr(buf, buf_size, po, popr, NULL, 0); case OPT_LABEL: snprintf(buf, buf_size, "%s%s", popr->name, @@ -1407,6 +1431,12 @@ static char *out_dst_opr(char *buf, size_t buf_size, return buf; } +static char *out_src_opr_u32(char *buf, size_t buf_size, + struct parsed_op *po, struct parsed_opr *popr) +{ + return out_src_opr(buf, buf_size, po, popr, NULL, 0); +} + static enum parsed_flag_op split_cond(struct parsed_op *po, enum op_op op, int *is_inv) { @@ -1552,19 +1582,19 @@ static void out_cmp_test(char *buf, size_t buf_size, if (po->op == OP_TEST) { if (IS(opr_name(po, 0), opr_name(po, 1))) { - out_src_opr(buf3, sizeof(buf3), po, &po->operand[0], 0); + out_src_opr_u32(buf3, sizeof(buf3), po, &po->operand[0]); } else { - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0); - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0); + out_src_opr_u32(buf1, sizeof(buf1), po, &po->operand[0]); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1]); snprintf(buf3, sizeof(buf3), "(%s & %s)", buf1, buf2); } out_test_for_cc(buf, buf_size, po, pfo, is_inv, po->operand[0].lmod, buf3); } else if (po->op == OP_CMP) { - out_src_opr(buf2, sizeof(buf2), po, &po->operand[0], 0); - out_src_opr(buf3, sizeof(buf3), po, &po->operand[1], 0); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[0]); + out_src_opr_u32(buf3, sizeof(buf3), po, &po->operand[1]); out_cmp_for_cc(buf, buf_size, po, pfo, is_inv, po->operand[0].lmod, buf2, buf3); } @@ -1895,7 +1925,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) { struct parsed_op *po, *delayed_flag_op = NULL, *tmp_op; struct parsed_opr *last_arith_dst = NULL; - char buf1[256], buf2[256], buf3[256]; + char buf1[256], buf2[256], buf3[256], cast[64]; struct parsed_proto *pp, *pp_tmp; struct parsed_data *pd; const char *tmpname; @@ -1904,6 +1934,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) int cmp_result_vars = 0; int need_mul_var = 0; int had_decl = 0; + int label_pending = 0; int regmask_save = 0; int regmask_arg = 0; int regmask = 0; @@ -1923,11 +1954,11 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) if (ret) ferr(ops, "proto_parse failed for '%s'\n", funcn); - fprintf(fout, "%s %s(", g_func_pp.ret_type, funcn); + fprintf(fout, "%s %s(", g_func_pp.ret_type.name, funcn); for (i = 0; i < g_func_pp.argc; i++) { if (i > 0) fprintf(fout, ", "); - fprintf(fout, "%s a%d", g_func_pp.arg[i].type, i + 1); + fprintf(fout, "%s a%d", g_func_pp.arg[i].type.name, i + 1); } fprintf(fout, ")\n{\n"); @@ -2126,10 +2157,10 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) j /= 4; if (j > ARRAY_SIZE(pp->arg)) ferr(po, "esp adjust too large?\n"); - pp->ret_type = strdup("int"); + pp->ret_type.name = strdup("int"); pp->argc = pp->argc_stack = j; for (arg = 0; arg < pp->argc; arg++) - pp->arg[arg].type = strdup("int"); + pp->arg[arg].type.name = strdup("int"); } else { ret = proto_parse(fhdr, tmpname, pp); @@ -2150,7 +2181,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) arg = pp->argc; pp->argc += j / 4 - pp->argc_stack; for (; arg < pp->argc; arg++) { - pp->arg[arg].type = strdup("int"); + pp->arg[arg].type.name = strdup("int"); pp->argc_stack++; } if (pp->argc > ARRAY_SIZE(pp->arg)) @@ -2331,11 +2362,11 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) else if (po->op == OP_CALL && po->operand[0].type != OPT_LABEL) { pp = po->datap; my_assert_not(pp, NULL); - fprintf(fout, " %s (*icall%d)(", pp->ret_type, i); + fprintf(fout, " %s (*icall%d)(", pp->ret_type.name, i); for (j = 0; j < pp->argc; j++) { if (j > 0) fprintf(fout, ", "); - fprintf(fout, "%s a%d", pp->arg[j].type, j + 1); + fprintf(fout, "%s a%d", pp->arg[j].type.name, j + 1); } fprintf(fout, ");\n"); } @@ -2388,7 +2419,9 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) } // declare other regs - special case for eax - if (!((regmask | regmask_arg) & 1) && !IS(g_func_pp.ret_type, "void")) { + if (!((regmask | regmask_arg) & 1) + && !IS(g_func_pp.ret_type.name, "void")) + { fprintf(fout, " u32 eax = 0;\n"); had_decl = 1; } @@ -2444,8 +2477,10 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) // output ops for (i = 0; i < opcnt; i++) { - if (g_labels[i][0] != 0 && g_label_refs[i].i != -1) + if (g_labels[i][0] != 0 && g_label_refs[i].i != -1) { fprintf(fout, "\n%s:\n", g_labels[i]); + label_pending = 1; + } po = &ops[i]; if (po->flags & OPF_RMD) @@ -2475,7 +2510,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) else if (last_arith_dst != NULL && (pfo == PFO_Z || pfo == PFO_S || pfo == PFO_P)) { - out_src_opr(buf3, sizeof(buf3), po, last_arith_dst, 0); + out_src_opr_u32(buf3, sizeof(buf3), po, last_arith_dst); out_test_for_cc(buf1, sizeof(buf1), po, pfo, is_inv, last_arith_dst->lmod, buf3); is_delayed = 1; @@ -2518,10 +2553,10 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) case OP_MOV: assert_operand_cnt(2); propagate_lmod(po, &po->operand[0], &po->operand[1]); - fprintf(fout, " %s = %s%s;", + fprintf(fout, " %s = %s;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), - po->operand[0].is_ptr ? "(void *)" : "", - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], + po->operand[0].is_ptr ? "(void *)" : "", 0)); break; case OP_LEA: @@ -2529,14 +2564,15 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) po->operand[1].lmod = OPLM_DWORD; // always fprintf(fout, " %s = %s;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 1)); + out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], + NULL, 1)); break; case OP_MOVZX: assert_operand_cnt(2); fprintf(fout, " %s = %s;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); break; case OP_MOVSX: @@ -2554,7 +2590,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) fprintf(fout, " %s = %s%s;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), buf3, - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); break; case OP_NOT: @@ -2567,7 +2603,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) assert_operand_cnt(2); fprintf(fout, " %s = (s32)%s >> 31;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); strcpy(g_comment, "cdq"); break; @@ -2652,7 +2688,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) fprintf(fout, " %s %s= %s;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), op_to_c(po), - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); last_arith_dst = &po->operand[0]; delayed_flag_op = NULL; break; @@ -2662,7 +2698,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]); fprintf(fout, " %s = %s%s >> %s;", buf1, lmod_cast_s(po, po->operand[0].lmod), buf1, - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); last_arith_dst = &po->operand[0]; delayed_flag_op = NULL; break; @@ -2706,7 +2742,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) fprintf(fout, " %s %s= %s + cond_c;", out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]), op_to_c(po), - out_src_opr(buf2, sizeof(buf2), po, &po->operand[1], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[1])); last_arith_dst = &po->operand[0]; delayed_flag_op = NULL; break; @@ -2728,7 +2764,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) case OP_NEG: out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]); - out_src_opr(buf2, sizeof(buf2), po, &po->operand[0], 0); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[0]); fprintf(fout, " %s = -%s%s;", buf1, lmod_cast_s(po, po->operand[0].lmod), buf2); last_arith_dst = &po->operand[0]; @@ -2749,7 +2785,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) assert_operand_cnt(1); strcpy(buf1, po->op == OP_IMUL ? "(s64)(s32)" : "(u64)"); fprintf(fout, " mul_tmp = %seax * %s%s;\n", buf1, buf1, - out_src_opr(buf2, sizeof(buf2), po, &po->operand[0], 0)); + out_src_opr_u32(buf2, sizeof(buf2), po, &po->operand[0])); fprintf(fout, " edx = mul_tmp >> 32;\n"); fprintf(fout, " eax = mul_tmp;"); last_arith_dst = NULL; @@ -2768,7 +2804,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) else ret = scan_for_cdq_edx(i - 1); if (ret >= 0) { - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0); + out_src_opr_u32(buf1, sizeof(buf1), po, &po->operand[0]); strcpy(buf2, lmod_cast(po, po->operand[0].lmod, po->op == OP_IDIV)); fprintf(fout, " edx = %seax %% %s%s;\n", buf2, buf2, buf1); @@ -2831,15 +2867,15 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) if (po->operand[0].type != OPT_LABEL) fprintf(fout, " icall%d = (void *)%s;\n", i, - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0)); + out_src_opr_u32(buf1, sizeof(buf1), po, &po->operand[0])); fprintf(fout, " "); - if (!IS(pp->ret_type, "void")) { + if (!IS(pp->ret_type.name, "void")) { if (po->flags & OPF_TAIL) fprintf(fout, "return "); else fprintf(fout, "eax = "); - if (strchr(pp->ret_type, '*')) + if (pp->ret_type.is_ptr) fprintf(fout, "(u32)"); } @@ -2856,11 +2892,12 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) if (arg > 0) fprintf(fout, ", "); - if (strchr(pp->arg[arg].type, '*')) - fprintf(fout, "(%s)", pp->arg[arg].type); + cast[0] = 0; + if (pp->arg[arg].type.is_ptr) + snprintf(cast, sizeof(cast), "(%s)", pp->arg[arg].type.name); if (pp->arg[arg].reg != NULL) { - fprintf(fout, "%s", pp->arg[arg].reg); + fprintf(fout, "%s%s", cast, pp->arg[arg].reg); continue; } @@ -2869,31 +2906,36 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) if (tmp_op == NULL) ferr(po, "parsed_op missing for arg%d\n", arg); if (tmp_op->argmask) { - fprintf(fout, "s_a%d", arg + 1); + fprintf(fout, "%ss_a%d", cast, arg + 1); } else { fprintf(fout, "%s", out_src_opr(buf1, sizeof(buf1), - tmp_op, &tmp_op->operand[0], 0)); + tmp_op, &tmp_op->operand[0], cast, 0)); } } fprintf(fout, ");"); if (po->flags & OPF_TAIL) { strcpy(g_comment, "tailcall"); - if (IS(pp->ret_type, "void")) + if (IS(pp->ret_type.name, "void")) { fprintf(fout, "\n return;"); + strcpy(g_comment, "^ tailcall"); + } } delayed_flag_op = NULL; last_arith_dst = NULL; break; case OP_RET: - if (IS(g_func_pp.ret_type, "void")) - fprintf(fout, " return;"); - else if (strchr(g_func_pp.ret_type, '*')) + if (IS(g_func_pp.ret_type.name, "void")) { + if (i != opcnt - 1 || label_pending) + fprintf(fout, " return;"); + } + else if (g_func_pp.ret_type.is_ptr) { fprintf(fout, " return (%s)eax;", - g_func_pp.ret_type); + g_func_pp.ret_type.name); + } else fprintf(fout, " return eax;"); break; @@ -2901,7 +2943,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) case OP_PUSH: if (po->argmask) { // special case - saved func arg - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0); + out_src_opr_u32(buf1, sizeof(buf1), po, &po->operand[0]); for (j = 0; j < 32; j++) { if (po->argmask & (1 << j)) fprintf(fout, " s_a%d = %s;", j + 1, buf1); @@ -2909,7 +2951,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) break; } else if (po->flags & OPF_RSAVE) { - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0); + out_src_opr_u32(buf1, sizeof(buf1), po, &po->operand[0]); fprintf(fout, " s_%s = %s;", buf1, buf1); break; } @@ -2918,7 +2960,7 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) case OP_POP: if (po->flags & OPF_RSAVE) { - out_src_opr(buf1, sizeof(buf1), po, &po->operand[0], 0); + out_dst_opr(buf1, sizeof(buf1), po, &po->operand[0]); fprintf(fout, " %s = s_%s;", buf1, buf1); break; } @@ -2963,6 +3005,8 @@ static void gen_func(FILE *fout, FILE *fhdr, const char *funcn, int opcnt) if (is_opr_modified(last_arith_dst, po)) last_arith_dst = NULL; } + + label_pending = 0; } fprintf(fout, "}\n\n"); @@ -3188,8 +3232,8 @@ parse_words: } // alow asm patches in comments - if (*p == ';' && IS_START(p, "; sctpatch: ")) { - p = sskip(p + 12); + if (*p == ';' && IS_START(p, "; sctpatch:")) { + p = sskip(p + 11); if (*p == 0 || *p == ';') continue; goto parse_words; // lame -- 2.39.2