shithub: scc

Download patch

ref: a901b27da57ae3df5a05f29b958104a55a10282b
parent: f441e1db75872457deb4aacf39500f3cc6185554
parent: 079e6ba6e4a218a64d593894050f546ca5cd3d34
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Thu Jun 16 12:43:52 EDT 2022

Merge remote-tracking branch 'origin/master'

--- a/src/cmd/cc/cc1/decl.c
+++ b/src/cmd/cc/cc1/decl.c
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
@@ -48,14 +49,20 @@
 static void
 endfundcl(Type *tp, Symbol **pars)
 {
-	if (tp->prop&TK_R && *pars)
-		warn("parameter names (without types) in function declaration");
 	/*
-	 * avoid non used warnings in prototypes
+	 * If endfundcl is called from a type built from a typedef then
+	 * we do not have any parameters because in that case we only
+	 * care about the type.
 	 */
-	while (*pars)
-		(*pars++)->flags |= SUSED;
-	popctx();
+	if (pars) {
+		if ((tp->prop&TK_R) != 0 && *pars)
+			warn("parameter names (without types) in function declaration");
+
+		/* avoid non used warnings in prototypes */
+		while (*pars)
+			(*pars++)->flags |= SUSED;
+		popctx();
+	}
 }
 
 static void
@@ -104,6 +111,13 @@
 		return 1;
 	}
 
+	/*
+	 * We have a type derived from a function type. We don't care
+	 * about the parameters because they were used only in the
+	 * process of building a final type. Prototype arguments are
+	 * discarded in funbody() because the final type of the decl
+	 * is an actual function.
+	 */
 	if (dcl->type->op == FTN)
 		endfundcl(dcl->type, dcl->pars);
 	dcl->pars = p->pars;
@@ -492,8 +506,16 @@
 	case TYPE:
 	case SCLASS:
 	case TYPEIDEN:
+		if (curctx < PARAMCTX) {
+			assert(!pars);
+			errorp("typedef'ed function type cannot be instantiated");
+			curctx = PARAMCTX;
+			pars = (Symbol *[]) {NULL};
+		}
+
 		if (curctx != PARAMCTX)
 			errorp("nested function declaration");
+
 		if (sym && sym->ns == NS_IDEN)
 			break;
 	default:
@@ -742,7 +764,7 @@
 		tp->ns = tpns++;
 		sym->type = tp;
 		tp->tag = sym;
-		DBG("declared tag '%s' with ns = %d\n",
+		DBG("DECL: declared tag '%s' with ns = %d\n",
 		    (sym->name) ? sym->name : "anonymous", tp->ns);
 	}
 
@@ -865,7 +887,6 @@
 	char *name = (sym->name) ? sym->name : anon;
 	Type *structp = dcl->parent, *tp = dcl->type;
 	TINT n = structp->n.elem;
-	int err = 0;
 
 	if (accept(':')) {
 		Node *np;
@@ -890,29 +911,31 @@
 		return sym;
 	}
 
-	if (tp->op == FTN) {
-		errorp("invalid type '%s' in struct/union", name);
-		err = 1;
+	if (sym->flags & SDECLARED) {
+		errorp("duplicated member '%s'", name);
+		return sym;
 	}
-	if (dcl->sclass) {
-		errorp("storage class in struct/union field '%s'", name);
-		err = 1;
+
+	if ((tp->prop & TDEFINED) == 0) {
+		errorp("field '%s' has incomplete type", name);
+		tp = inttype;
 	}
-	if (!(tp->prop & TDEFINED)) {
-		error("field '%s' has incomplete type", name);
-		err = 1;
+	if (tp->op == FTN) {
+		errorp("field '%s' declared as a function", name);
+		tp = inttype;
 	}
-	if (err)
-		return sym;
+	if (dcl->sclass)
+		errorp("storage class in struct/union field '%s'", name);
 
-	if (sym->flags & SDECLARED)
-		error("duplicated member '%s'", name);
-	sym->flags |= SFIELD|SDECLARED;
 	sym->type = tp;
+	sym->flags |= SFIELD|SDECLARED;
 
-	if (n == NR_FIELDS)
-		error("too many fields in struct/union");
-	DBG("New field '%s' in namespace %d\n", name, structp->ns);
+	if (n == NR_FIELDS) {
+		errorp("too many fields in struct/union");
+		return sym;
+	}
+
+	DBG("DECL: New field '%s' in namespace %d\n", name, structp->ns);
 	structp->p.fields = xrealloc(structp->p.fields, ++n * sizeof(*sym));
 	structp->p.fields[n-1] = sym;
 	structp->n.elem = n;
@@ -934,6 +957,7 @@
 
 	do {
 		dcl.type = base;
+		dcl.pars = NULL;
 		stack.nr_types = stack.nr = 0;
 		stack.tpars = dcl.buftpars;
 		stack.pars = dcl.bufpars;
--- a/src/cmd/cc/cc1/init.c
+++ b/src/cmd/cc/cc1/init.c
@@ -209,8 +209,8 @@
 		ip->max = ip->pos+1;
 }
 
-Node *
-initlist(Type *tp)
+static Node *
+initlist_helper(Type *tp)
 {
 	Init in;
 	Node *np;
@@ -217,11 +217,7 @@
 	Type *curtp;
 	int braces, scalar, toomany, outbound;
 	TINT nelem = tp->n.elem;
-	static int depth;
 
-	if (depth == NR_SUBTYPE)
-		error("too many nested initializers");
-	++depth;
 	init(&in);
 	braces = scalar = toomany = 0;
 
@@ -316,6 +312,22 @@
 	}
 
 	return mkcompound(&in, tp);
+}
+
+Node *
+initlist(Type *tp)
+{
+	Node *np;
+	static int depth;
+
+	if (depth == NR_SUBTYPE)
+		error("too many nested initializers");
+
+	++depth;
+	np = initlist_helper(tp);
+	--depth;
+
+	return np;
 }
 
 static void
--- a/src/cmd/cc/cc1/lex.c
+++ b/src/cmd/cc/cc1/lex.c
@@ -52,7 +52,7 @@
 addinput(int type, void *arg, int fail)
 {
 	FILE *fp;
-	char *extp, *fname, *buffer, *infile;;
+	char *extp, *fname, *buffer, *infile;
 	int infileln;
 	Macro *mp;
 	Symbol *sym;
--- a/src/libc/stdio/_fpopen.c
+++ b/src/libc/stdio/_fpopen.c
@@ -12,7 +12,7 @@
         const char *restrict mode,
         FILE * restrict fp)
 {
-	int i, flags, fd, rw, bin, rights;;
+	int i, flags, fd, rw, bin, rights;
 
 	flags = rw = bin = 0;
 	rights = 0666;
--- /dev/null
+++ b/tests/cc/execute/0206-initializer.c
@@ -1,0 +1,171 @@
+static int alpha3[][2] = {
+	{ 0x00D6, 0x00D8 },
+	{ 0x00F6, 0x00F8 },
+	{ 0x02EC, 0x02EE },
+	{ 0x0374, 0x0376 },
+	{ 0x037D, 0x037F },
+	{ 0x0386, 0x0388 },
+	{ 0x038A, 0x038E },
+	{ 0x03A1, 0x03A3 },
+	{ 0x03F5, 0x03F7 },
+	{ 0x052F, 0x0531 },
+	{ 0x066F, 0x0671 },
+	{ 0x06D3, 0x06D5 },
+	{ 0x0710, 0x0712 },
+	{ 0x09A8, 0x09AA },
+	{ 0x09B0, 0x09B2 },
+	{ 0x09DD, 0x09DF },
+	{ 0x0A28, 0x0A2A },
+	{ 0x0A30, 0x0A32 },
+	{ 0x0A33, 0x0A35 },
+	{ 0x0A36, 0x0A38 },
+	{ 0x0A5C, 0x0A5E },
+	{ 0x0A8D, 0x0A8F },
+	{ 0x0A91, 0x0A93 },
+	{ 0x0AA8, 0x0AAA },
+	{ 0x0AB0, 0x0AB2 },
+	{ 0x0AB3, 0x0AB5 },
+	{ 0x0B28, 0x0B2A },
+	{ 0x0B30, 0x0B32 },
+	{ 0x0B33, 0x0B35 },
+	{ 0x0B5D, 0x0B5F },
+	{ 0x0B83, 0x0B85 },
+	{ 0x0B90, 0x0B92 },
+	{ 0x0B9A, 0x0B9E },
+	{ 0x0C0C, 0x0C0E },
+	{ 0x0C10, 0x0C12 },
+	{ 0x0C28, 0x0C2A },
+	{ 0x0C8C, 0x0C8E },
+	{ 0x0C90, 0x0C92 },
+	{ 0x0CA8, 0x0CAA },
+	{ 0x0CB3, 0x0CB5 },
+	{ 0x0CDE, 0x0CE0 },
+	{ 0x0D0C, 0x0D0E },
+	{ 0x0D10, 0x0D12 },
+	{ 0x0DB1, 0x0DB3 },
+	{ 0x0DBB, 0x0DBD },
+	{ 0x0E30, 0x0E32 },
+	{ 0x0E82, 0x0E84 },
+	{ 0x0E88, 0x0E8A },
+	{ 0x0E97, 0x0E99 },
+	{ 0x0E9F, 0x0EA1 },
+	{ 0x0EA3, 0x0EA7 },
+	{ 0x0EAB, 0x0EAD },
+	{ 0x0EB0, 0x0EB2 },
+	{ 0x0EC4, 0x0EC6 },
+	{ 0x0F47, 0x0F49 },
+	{ 0x10C5, 0x10C7 },
+	{ 0x10FA, 0x10FC },
+	{ 0x1248, 0x124A },
+	{ 0x1256, 0x125A },
+	{ 0x1288, 0x128A },
+	{ 0x12B0, 0x12B2 },
+	{ 0x12BE, 0x12C2 },
+	{ 0x12D6, 0x12D8 },
+	{ 0x1310, 0x1312 },
+	{ 0x167F, 0x1681 },
+	{ 0x170C, 0x170E },
+	{ 0x176C, 0x176E },
+	{ 0x18A8, 0x18AA },
+	{ 0x1CEC, 0x1CEE },
+	{ 0x1F57, 0x1F5F },
+	{ 0x1FB4, 0x1FB6 },
+	{ 0x1FBC, 0x1FBE },
+	{ 0x1FC4, 0x1FC6 },
+	{ 0x1FF4, 0x1FF6 },
+	{ 0x2113, 0x2115 },
+	{ 0x2124, 0x212A },
+	{ 0x212D, 0x212F },
+	{ 0x2C2E, 0x2C30 },
+	{ 0x2C5E, 0x2C60 },
+	{ 0x2D25, 0x2D27 },
+	{ 0x2DA6, 0x2DA8 },
+	{ 0x2DAE, 0x2DB0 },
+	{ 0x2DB6, 0x2DB8 },
+	{ 0x2DBE, 0x2DC0 },
+	{ 0x2DC6, 0x2DC8 },
+	{ 0x2DCE, 0x2DD0 },
+	{ 0x2DD6, 0x2DD8 },
+	{ 0x309F, 0x30A1 },
+	{ 0x30FA, 0x30FC },
+	{ 0xA78E, 0xA790 },
+	{ 0xA801, 0xA803 },
+	{ 0xA805, 0xA807 },
+	{ 0xA80A, 0xA80C },
+	{ 0xA9E4, 0xA9E6 },
+	{ 0xA9FE, 0xAA00 },
+	{ 0xAA42, 0xAA44 },
+	{ 0xAAAF, 0xAAB1 },
+	{ 0xAAC0, 0xAAC2 },
+	{ 0xAB26, 0xAB28 },
+	{ 0xAB2E, 0xAB30 },
+	{ 0xAB5A, 0xAB5C },
+	{ 0xFB1D, 0xFB1F },
+	{ 0xFB28, 0xFB2A },
+	{ 0xFB36, 0xFB38 },
+	{ 0xFB3C, 0xFB40 },
+	{ 0xFB41, 0xFB43 },
+	{ 0xFB44, 0xFB46 },
+	{ 0xFE74, 0xFE76 },
+	{ 0x1000B, 0x1000D },
+	{ 0x10026, 0x10028 },
+	{ 0x1003A, 0x1003C },
+	{ 0x1003D, 0x1003F },
+	{ 0x10340, 0x10342 },
+	{ 0x10808, 0x1080A },
+	{ 0x10835, 0x10837 },
+	{ 0x10A13, 0x10A15 },
+	{ 0x10A17, 0x10A19 },
+	{ 0x10AC7, 0x10AC9 },
+	{ 0x11211, 0x11213 },
+	{ 0x11328, 0x1132A },
+	{ 0x11330, 0x11332 },
+	{ 0x11333, 0x11335 },
+	{ 0x114C5, 0x114C7 },
+	{ 0x1D454, 0x1D456 },
+	{ 0x1D49C, 0x1D49E },
+	{ 0x1D4AC, 0x1D4AE },
+	{ 0x1D4B9, 0x1D4BD },
+	{ 0x1D4C3, 0x1D4C5 },
+	{ 0x1D505, 0x1D507 },
+	{ 0x1D514, 0x1D516 },
+	{ 0x1D51C, 0x1D51E },
+	{ 0x1D539, 0x1D53B },
+	{ 0x1D53E, 0x1D540 },
+	{ 0x1D544, 0x1D546 },
+	{ 0x1D550, 0x1D552 },
+	{ 0x1D6C0, 0x1D6C2 },
+	{ 0x1D6DA, 0x1D6DC },
+	{ 0x1D6FA, 0x1D6FC },
+	{ 0x1D714, 0x1D716 },
+	{ 0x1D734, 0x1D736 },
+	{ 0x1D74E, 0x1D750 },
+	{ 0x1D76E, 0x1D770 },
+	{ 0x1D788, 0x1D78A },
+	{ 0x1D7A8, 0x1D7AA },
+	{ 0x1D7C2, 0x1D7C4 },
+	{ 0x1EE03, 0x1EE05 },
+	{ 0x1EE1F, 0x1EE21 },
+	{ 0x1EE22, 0x1EE24 },
+	{ 0x1EE27, 0x1EE29 },
+	{ 0x1EE32, 0x1EE34 },
+	{ 0x1EE37, 0x1EE3B },
+	{ 0x1EE47, 0x1EE4D },
+	{ 0x1EE4F, 0x1EE51 },
+	{ 0x1EE52, 0x1EE54 },
+	{ 0x1EE57, 0x1EE61 },
+	{ 0x1EE62, 0x1EE64 },
+	{ 0x1EE6A, 0x1EE6C },
+	{ 0x1EE72, 0x1EE74 },
+	{ 0x1EE77, 0x1EE79 },
+	{ 0x1EE7C, 0x1EE80 },
+	{ 0x1EE89, 0x1EE8B },
+	{ 0x1EEA3, 0x1EEA5 },
+	{ 0x1EEA9, 0x1EEAB },
+};
+
+int
+main()
+{
+	return alpha3 == 0;
+}
--- /dev/null
+++ b/tests/cc/execute/0207-structcb.c
@@ -1,0 +1,13 @@
+typedef int (cookie_seek_function_t)(void);
+
+typedef struct _IO_cookie_io_functions_t {
+	cookie_seek_function_t *seek;
+} cookie_io_functions_t;
+
+cookie_seek_function_t seek;
+
+int
+main(void)
+{
+	return 0;
+}
--- a/tests/cc/execute/scc-tests.lst
+++ b/tests/cc/execute/scc-tests.lst
@@ -196,3 +196,5 @@
 0203-comment.c
 0204-cast.c
 0205-cpparg.c
+0206-initializer.c
+0207-structcb.c