+/*
+ * ia32rtools
+ * (C) notaz, 2013,2014
+ *
+ * This work is licensed under the terms of 3-clause BSD license.
+ * See COPYING file in the top-level directory.
+ */
struct parsed_proto;
char *name;
unsigned int is_array:1;
unsigned int is_ptr:1;
+ unsigned int is_struct:1; // split for args
+ unsigned int is_retreg:1; // register to return to caller
+ unsigned int is_va_list:1;
};
struct parsed_proto_arg {
int argc_reg;
unsigned int is_func:1;
unsigned int is_stdcall:1;
- unsigned int is_vararg:1;
+ unsigned int is_fastcall:1;
+ unsigned int is_vararg:1; // vararg func
unsigned int is_fptr:1;
unsigned int is_noreturn:1;
+ unsigned int is_unresolved:1;
+ unsigned int is_userstack:1;
+ unsigned int is_include:1; // not from top-level header
+ unsigned int is_osinc:1; // OS/system library func
+ unsigned int is_arg:1; // declared in some func arg
+ unsigned int has_structarg:1;
+ unsigned int has_retreg:1;
};
static const char *hdrfn;
static int hdrfline = 0;
-static int find_protostr(char *dst, size_t dlen, FILE *fhdr,
- const char *fname, const char *sym_)
+static void pp_copy_arg(struct parsed_proto_arg *d,
+ const struct parsed_proto_arg *s);
+
+static int b_pp_c_handler(char *proto, const char *fname,
+ int is_include, int is_osinc);
+
+static int do_protostrs(FILE *fhdr, const char *fname, int is_include)
{
- const char *sym = sym_;
const char *finc_name;
+ const char *hdrfn_saved;
+ char protostr[256];
+ char path[256];
+ char fname_inc[256];
+ int is_osinc;
FILE *finc;
- int symlen;
int line = 0;
int ret;
char *p;
- if (sym[0] == '_' && strncmp(fname, "stdc", 4) == 0)
- sym++;
- symlen = strlen(sym);
+ hdrfn_saved = hdrfn;
+ hdrfn = fname;
- rewind(fhdr);
+ is_osinc = strstr(fname, "stdc.hlist")
+ || strstr(fname, "win32.hlist");
- while (fgets(dst, dlen, fhdr))
+ while (fgets(protostr, sizeof(protostr), fhdr))
{
line++;
- if (strncmp(dst, "//#include ", 11) == 0) {
- finc_name = dst + 11;
+ if (strncmp(protostr, "//#include ", 11) == 0) {
+ finc_name = protostr + 11;
p = strpbrk(finc_name, "\r\n ");
if (p != NULL)
*p = 0;
- finc = fopen(finc_name, "r");
+ path[0] = 0;
+ p = strrchr(hdrfn_saved, '/');
+ if (p) {
+ memcpy(path, hdrfn_saved,
+ p - hdrfn_saved + 1);
+ path[p - hdrfn_saved + 1] = 0;
+ }
+ snprintf(fname_inc, sizeof(fname_inc), "%s%s",
+ path, finc_name);
+ finc = fopen(fname_inc, "r");
if (finc == NULL) {
printf("%s:%d: can't open '%s'\n",
- fname, line, finc_name);
+ fname_inc, line, finc_name);
continue;
}
- ret = find_protostr(dst, dlen, finc,
- finc_name, sym_);
+ ret = do_protostrs(finc, finc_name, 1);
fclose(finc);
- if (ret == 0)
+ if (ret < 0)
break;
continue;
}
- if (strncmp(sskip(dst), "//", 2) == 0)
+ if (strncmp(sskip(protostr), "//", 2) == 0)
+ continue;
+
+ p = protostr + strlen(protostr);
+ for (p--; p >= protostr && my_isblank(*p); --p)
+ *p = 0;
+ if (p < protostr)
continue;
- p = strstr(dst, sym);
- if (p != NULL && p > dst
- && (my_isblank(p[-1]) || my_issep(p[-1]))
- && (my_isblank(p[symlen]) || my_issep(p[symlen])))
+ hdrfline = line;
+
+ ret = b_pp_c_handler(protostr, hdrfn, is_include,
+ is_osinc);
+ if (ret < 0)
break;
}
- hdrfline = line;
- if (feof(fhdr))
- return -1;
+ hdrfn = hdrfn_saved;
- p = dst + strlen(dst);
- for (p--; p > dst && my_isblank(*p); --p)
- *p = 0;
+ if (feof(fhdr))
+ return 0;
- return 0;
+ return -1;
}
-static int get_regparm(char *dst, size_t dlen, char *p)
+static int get_regparm(char *dst, size_t dlen, char *p, int *retreg)
{
- int i, o;
+ int i = 0, o;
+
+ *retreg = 0;
if (*p != '<')
return 0;
- for (o = 0, i = 1; o < dlen; i++) {
+ i++;
+ if (p[i] == '*') {
+ *retreg = 1;
+ i++;
+ }
+
+ for (o = 0; o < dlen; i++) {
if (p[i] == 0)
return 0;
if (p[i] == '>')
"unsigned",
"struct",
"enum",
+ "CONST",
+ "volatile",
};
static const char *known_ptr_types[] = {
+ "FARPROC",
+ "WNDPROC",
+ "LINECALLBACK",
"HACCEL",
"HANDLE",
"HBITMAP",
+ "HCALL",
"HCURSOR",
"HDC",
+ "HFONT",
"HGDIOBJ",
"HGLOBAL",
+ "HICON",
"HINSTANCE",
+ "HIMC", // DWORD in mingw, ptr in wine..
+ "HLINE",
+ "HLINEAPP",
+ "HLOCAL",
"HMODULE",
+ "HPALETTE",
"HRGN",
"HRSRC",
"HKEY",
"HMENU",
+ "HWAVEOUT",
"HWND",
- "PLONG",
+ "PBYTE",
+ "PCRITICAL_SECTION",
"PDWORD",
+ "PFILETIME",
+ "PLARGE_INTEGER",
+ "PHKEY",
+ "PLONG",
+ "PMEMORY_BASIC_INFORMATION",
+ "PUINT",
"PVOID",
"PCVOID",
+ "PWORD",
"DLGPROC",
+ "TIMERPROC",
+ "WNDENUMPROC",
"va_list",
"__VALIST",
};
len = strlen(known_type_mod[i]);
if (strncmp(n, known_type_mod[i], len) != 0)
continue;
+ if (!my_isblank(n[len]))
+ continue;
n += len;
while (my_isblank(*n))
break;
}
- if (n[0] == 'L' && n[1] == 'P')
+ if (n[0] == 'L' && n[1] == 'P' && strncmp(n, "LPARAM", 6))
type->is_ptr = 1;
// assume single word
ret = n1 - name;
type->name = strndup(name, ret);
+ if (IS(type->name, "__VALIST") || IS(type->name, "va_list"))
+ type->is_va_list = 1;
+ if (IS(type->name, "VOID"))
+ memcpy(type->name, "void", 4);
+
return ret;
}
return reg;
}
+static int check_struct_arg(struct parsed_proto_arg *arg)
+{
+ if (IS(arg->type.name, "POINT"))
+ return 2 - 1;
+
+ return 0;
+}
+
static int parse_protostr(char *protostr, struct parsed_proto *pp)
{
struct parsed_proto_arg *arg;
char regparm[16];
char buf[256];
char cconv[32];
+ int is_retreg;
int xarg = 0;
char *p, *p1;
int i, l;
}
p = sskip(p + ret);
+ if (!strncmp(p, "noreturn ", 9)) {
+ pp->is_noreturn = 1;
+ p = sskip(p + 9);
+ }
+
if (!strchr(p, ')')) {
p = next_idt(buf, sizeof(buf), p);
p = sskip(p);
pp->is_stdcall = 0;
else if (IS(cconv, "__stdcall"))
pp->is_stdcall = 1;
- else if (IS(cconv, "__fastcall"))
- pp->is_stdcall = 1;
+ else if (IS(cconv, "__fastcall")) {
+ pp->is_fastcall = 1;
+ pp->is_stdcall = 1; // sort of..
+ }
else if (IS(cconv, "__thiscall"))
pp->is_stdcall = 1;
else if (IS(cconv, "__userpurge"))
pp->is_stdcall = 1; // IDA
else if (IS(cconv, "__usercall"))
pp->is_stdcall = 0; // IDA
+ else if (IS(cconv, "__userstack")) {
+ pp->is_stdcall = 0; // custom
+ pp->is_userstack = 1;
+ }
else if (IS(cconv, "WINAPI"))
pp->is_stdcall = 1;
else {
hdrfn, hdrfline, (p - protostr) + 1);
return -1;
}
- p = sskip(p + 1);
+ p++;
+ // XXX: skipping extra asterisks, for now
+ while (*p == '*')
+ p++;
+ p = sskip(p);
}
p = next_idt(buf, sizeof(buf), p);
}
strcpy(pp->name, buf);
- ret = get_regparm(regparm, sizeof(regparm), p);
+ ret = get_regparm(regparm, sizeof(regparm), p, &is_retreg);
if (ret > 0) {
if (!IS(regparm, "eax") && !IS(regparm, "ax")
- && !IS(regparm, "al"))
+ && !IS(regparm, "al") && !IS(regparm, "edx:eax"))
{
printf("%s:%d:%zd: bad regparm: %s\n",
hdrfn, hdrfline, (p - protostr) + 1, regparm);
}
if (pp->is_fptr) {
+ if (*p == '[') {
+ // not really ret_type is array, but ohwell
+ pp->ret_type.is_array = 1;
+ p = strchr(p + 1, ']');
+ if (p == NULL) {
+ printf("%s:%d:%zd: ']' expected\n",
+ hdrfn, hdrfline, (p - protostr) + 1);
+ return -1;
+ }
+ p = sskip(p + 1);
+ }
if (*p != ')') {
printf("%s:%d:%zd: ')' expected\n",
hdrfn, hdrfline, (p - protostr) + 1);
p++;
break;
}
- if (*p == ',')
+ if (xarg > 0) {
+ if (*p != ',') {
+ printf("%s:%d:%zd: ',' expected\n",
+ hdrfn, hdrfline, (p - protostr) + 1);
+ return -1;
+ }
p = sskip(p + 1);
+ }
if (!strncmp(p, "...", 3)) {
pp->is_vararg = 1;
hdrfn, hdrfline, p1 - protostr);
return -1;
}
+ arg->fptr->is_arg = 1;
+ // we don't use actual names right now..
+ snprintf(arg->fptr->name,
+ sizeof(arg->fptr->name), "a%d", xarg);
// we'll treat it as void * for non-calls
- arg->type.name = "void *";
+ arg->type.name = strdup("void *");
arg->type.is_ptr = 1;
p = p1 + ret;
#endif
arg->reg = NULL;
- ret = get_regparm(regparm, sizeof(regparm), p);
+ ret = get_regparm(regparm, sizeof(regparm), p, &is_retreg);
if (ret > 0) {
p += ret;
p = sskip(p);
arg->reg = strdup(map_reg(regparm));
+ arg->type.is_retreg = is_retreg;
+ pp->has_retreg |= is_retreg;
+ }
+
+ if (strstr(arg->type.name, "int64")
+ || IS(arg->type.name, "double"))
+ {
+ // hack..
+ free(arg->type.name);
+ arg->type.name = strdup("int");
+ pp_copy_arg(&pp->arg[xarg], arg);
+ xarg++;
+ }
+
+ ret = check_struct_arg(arg);
+ if (ret > 0) {
+ pp->has_structarg = 1;
+ arg->type.is_struct = 1;
+ free(arg->type.name);
+ arg->type.name = strdup("int");
+ for (l = 0; l < ret; l++) {
+ pp_copy_arg(&pp->arg[xarg], arg);
+ xarg++;
+ }
}
}
pp->arg[1].reg = strdup("edx");
}
- if (pp->is_vararg && pp->is_stdcall) {
- printf("%s:%d: vararg stdcall?\n", hdrfn, hdrfline);
- return -1;
- }
-
pp->argc = xarg;
for (i = 0; i < pp->argc; i++) {
pp->argc_reg++;
}
+ if (pp->argc == 1 && pp->arg[0].reg != NULL
+ && IS(pp->arg[0].reg, "ecx"))
+ {
+ pp->is_fastcall = 1;
+ }
+ else if (pp->argc_reg == 2
+ && pp->arg[0].reg != NULL && IS(pp->arg[0].reg, "ecx")
+ && pp->arg[1].reg != NULL && IS(pp->arg[1].reg, "edx"))
+ {
+ pp->is_fastcall = 1;
+ }
+
+ if (pp->is_vararg && (pp->is_stdcall || pp->is_fastcall)) {
+ printf("%s:%d: vararg %s?\n", hdrfn, hdrfline, cconv);
+ return -1;
+ }
+
return p - protostr;
}
-static int proto_parse(FILE *fhdr, const char *sym, struct parsed_proto *pp)
+static int pp_name_cmp(const void *p1, const void *p2)
+{
+ const struct parsed_proto *pp1 = p1, *pp2 = p2;
+ return strcmp(pp1->name, pp2->name);
+}
+
+static struct parsed_proto *pp_cache;
+static int pp_cache_size;
+static int pp_cache_alloc;
+
+static int b_pp_c_handler(char *proto, const char *fname,
+ int is_include, int is_osinc)
{
- char protostr[256];
int ret;
- memset(pp, 0, sizeof(*pp));
+ if (pp_cache_size >= pp_cache_alloc) {
+ pp_cache_alloc = pp_cache_alloc * 2 + 64;
+ pp_cache = realloc(pp_cache, pp_cache_alloc
+ * sizeof(pp_cache[0]));
+ my_assert_not(pp_cache, NULL);
+ memset(pp_cache + pp_cache_size, 0,
+ (pp_cache_alloc - pp_cache_size)
+ * sizeof(pp_cache[0]));
+ }
+
+ ret = parse_protostr(proto, &pp_cache[pp_cache_size]);
+ if (ret < 0)
+ return -1;
+
+ pp_cache[pp_cache_size].is_include = is_include;
+ pp_cache[pp_cache_size].is_osinc = is_osinc;
+ pp_cache_size++;
+ return 0;
+}
+
+static void build_pp_cache(FILE *fhdr)
+{
+ long pos;
+ int ret;
+
+ pos = ftell(fhdr);
+ rewind(fhdr);
+
+ ret = do_protostrs(fhdr, hdrfn, 0);
+ if (ret < 0)
+ exit(1);
+
+ qsort(pp_cache, pp_cache_size, sizeof(pp_cache[0]), pp_name_cmp);
+ fseek(fhdr, pos, SEEK_SET);
+}
+
+static const struct parsed_proto *proto_parse(FILE *fhdr, const char *sym,
+ int quiet)
+{
+ const struct parsed_proto *pp_ret;
+ struct parsed_proto pp_search;
+ char *p;
+
+ if (pp_cache == NULL)
+ build_pp_cache(fhdr);
+
+ if (sym[0] == '_') // && strncmp(fname, "stdc", 4) == 0)
+ sym++;
+
+ strcpy(pp_search.name, sym);
+ p = strchr(pp_search.name, '@');
+ if (p != NULL)
+ *p = 0;
- ret = find_protostr(protostr, sizeof(protostr), fhdr, hdrfn, sym);
- if (ret != 0) {
+ pp_ret = bsearch(&pp_search, pp_cache, pp_cache_size,
+ sizeof(pp_cache[0]), pp_name_cmp);
+ if (pp_ret == NULL && !quiet)
printf("%s: sym '%s' is missing\n", hdrfn, sym);
- return ret;
+
+ return pp_ret;
+}
+
+static void pp_copy_arg(struct parsed_proto_arg *d,
+ const struct parsed_proto_arg *s)
+{
+ memcpy(d, s, sizeof(*d));
+
+ if (s->reg != NULL) {
+ d->reg = strdup(s->reg);
+ my_assert_not(d->reg, NULL);
+ }
+ if (s->type.name != NULL) {
+ d->type.name = strdup(s->type.name);
+ my_assert_not(d->type.name, NULL);
+ }
+ if (s->fptr != NULL) {
+ d->fptr = malloc(sizeof(*d->fptr));
+ my_assert_not(d->fptr, NULL);
+ memcpy(d->fptr, s->fptr, sizeof(*d->fptr));
}
+}
+
+struct parsed_proto *proto_clone(const struct parsed_proto *pp_c)
+{
+ struct parsed_proto *pp;
+ int i;
- return parse_protostr(protostr, pp) < 0 ? -1 : 0;
+ pp = malloc(sizeof(*pp));
+ my_assert_not(pp, NULL);
+ memcpy(pp, pp_c, sizeof(*pp)); // lazy..
+
+ // do the actual deep copy..
+ for (i = 0; i < pp_c->argc; i++)
+ pp_copy_arg(&pp->arg[i], &pp_c->arg[i]);
+ if (pp_c->ret_type.name != NULL)
+ pp->ret_type.name = strdup(pp_c->ret_type.name);
+
+ return pp;
+}
+
+
+static inline int pp_cmp_func(const struct parsed_proto *pp1,
+ const struct parsed_proto *pp2)
+{
+ int i;
+
+ if (pp1->argc != pp2->argc || pp1->argc_reg != pp2->argc_reg)
+ return 1;
+ else {
+ for (i = 0; i < pp1->argc; i++) {
+ if ((pp1->arg[i].reg != NULL) != (pp2->arg[i].reg != NULL))
+ return 1;
+
+ if ((pp1->arg[i].reg != NULL)
+ && !IS(pp1->arg[i].reg, pp2->arg[i].reg))
+ {
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static inline void pp_print(char *buf, size_t buf_size,
+ const struct parsed_proto *pp)
+{
+ size_t l;
+ int i;
+
+ snprintf(buf, buf_size, "%s %s(", pp->ret_type.name, pp->name);
+ l = strlen(buf);
+
+ for (i = 0; i < pp->argc_reg; i++) {
+ snprintf(buf + l, buf_size - l, "%s%s",
+ i == 0 ? "" : ", ", pp->arg[i].reg);
+ l = strlen(buf);
+ }
+ if (pp->argc_stack > 0) {
+ snprintf(buf + l, buf_size - l, "%s{%d stack}",
+ i == 0 ? "" : ", ", pp->argc_stack);
+ l = strlen(buf);
+ }
+ snprintf(buf + l, buf_size - l, ")");
}
-static void proto_release(struct parsed_proto *pp)
+static inline void proto_release(struct parsed_proto *pp)
{
int i;
}
if (pp->ret_type.name != NULL)
free(pp->ret_type.name);
+ free(pp);
}
notaz.gp2x.de / ia32rtools.git / blobdiff