converted to C++ (77ae76ee) · Commits · e / os / android_system_core

libacc/acc.c→libacc/acc.cpp

+38 −24

Original line number	Diff line number	Diff line
		@@ -20,11 +20,14 @@
		3. This notice may not be removed or altered from any source distribution.
		*/

		#include <ctype.h>
		#include <dlfcn.h>
		#include <stdarg.h>
		#include <stdio.h>
		#include <stdlib.h>
		#include <string.h>

		class compiler {
		/* vars: value of variables
		loc : local variable index
		glo : global variable index
		@@ -64,12 +67,12 @@ FILE* file;
		#define TAG_TOK ' '
		#define TAG_MACRO 2

		pdef(t)
		void pdef(int t)
		{
		(char )dstk++ = t;
		}

		inp()
		void inp()
		{
		if (dptr) {
		ch = (char )dptr++;
		@@ -82,13 +85,13 @@ inp()
		/* printf("ch=%c 0x%x\n", ch, ch); */
		}

		isid()
		int isid()
		{
		return isalnum(ch) \| ch == '_';
		}

		/* read a character constant */
		getq()
		void getq()
		{
		if (ch == '\\') {
		inp();
		@@ -97,7 +100,7 @@ getq()
		}
		}

		next()
		void next()
		{
		int l, a;

		@@ -224,11 +227,11 @@ void error(char *fmt,...)
		fprintf(stderr, "%d: ", ftell((FILE *)file));
		vfprintf(stderr, fmt, ap);
		fprintf(stderr, "\n");
		exit(1);
		va_end(ap);
		exit(1);
		}

		void skip(c)
		void skip(int c)
		{
		if (tok != c) {
		error("'%c' expected", c);
		@@ -236,7 +239,7 @@ void skip(c)
		next();
		}

		o(n)
		void o(int n)
		{
		/* cannot use unsigned, so we must do a hack */
		while (n && n != -1) {
		@@ -246,7 +249,7 @@ o(n)
		}

		/* output a symbol and patch all calls to it */
		gsym(t)
		void gsym(int t)
		{
		int n;
		while (t) {
		@@ -261,7 +264,7 @@ gsym(t)
		#define psym oad

		/* instruction + address */
		oad(n, t)
		int oad(int n, int t)
		{
		o(n);
		(int )ind = t;
		@@ -271,24 +274,24 @@ oad(n, t)
		}

		/* load immediate value */
		li(t)
		int li(int t)
		{
		oad(0xb8, t); /* mov $xx, %eax */
		}

		gjmp(t)
		int gjmp(int t)
		{
		return psym(0xe9, t);
		}

		/* l = 0: je, l == 1: jne */
		gtst(l, t)
		int gtst(int l, int t)
		{
		o(0x0fc085); /* test %eax, %eax, je/jne xxx */
		return psym(0x84 + l, t);
		}

		gcmp(t)
		int gcmp(int t)
		{
		o(0xc139); /* cmp %eax,%ecx */
		li(0);
		@@ -297,14 +300,14 @@ gcmp(t)
		o(0xc0);
		}

		gmov(l, t)
		int gmov(int l, int t)
		{
		o(l + 0x83);
		oad((t < LOCAL) << 7 \| 5, t);
		}

		/* l is one if '=' parsing wanted (quick hack) */
		unary(l)
		void unary(int l)
		{
		int n, t, a, c;

		@@ -375,7 +378,7 @@ unary(l)
		n = (int )t;
		/* forward reference: try dlsym */
		if (!n)
		n = dlsym(0, last_id);
		n = (int) dlsym(0, (char*) last_id);
		if (tok == '=' & l) {
		/* assignment */
		next();
		@@ -426,7 +429,7 @@ unary(l)
		}
		}

		sum(l)
		void sum(int l)
		{
		int t, n, a;

		@@ -468,19 +471,20 @@ sum(l)
		}
		}

		expr()
		void expr()
		{
		sum(11);
		}


		test_expr()
		int test_expr()
		{
		expr();
		return gtst(0, 0);
		}

		block(l)

		void block(int l)
		{
		int a, n, t;

		@@ -524,7 +528,7 @@ block(l)
		}
		}
		skip(')');
		block(&a);
		block((int) &a);
		gjmp(n - ind - 5); /* jmp */
		gsym(a);
		} else if (tok == '{') {
		@@ -550,7 +554,7 @@ block(l)
		}

		/* 'l' is true if local declarations */
		decl(l)
		void decl(int l)
		{
		int a;

		@@ -599,7 +603,10 @@ decl(l)
		}
		}

		main(int n, char** t)
		public:
		compiler(){}

		int compile(int n, char** t)
		{
		file = stdin;
		if (n-- > 1) {
		@@ -627,3 +634,10 @@ main(int n, char** t)
		return ((int ()())(int )(vars + TOK_MAIN)) (n, t);
		#endif
		}

		};

		int main(int argc, char** argv) {
		compiler c;
		return c.compile(argc, argv);
		}
		No newline at end of file

libacc/test

+1 −1

#!/bin/sh

gcc acc.c -DTEST -ldl -o tests/acc && tests/acc tests/otcc.c tests/otcc.out && diff tests/otcc.out tests/otcc.out-orig

g++ acc.cpp -DTEST -ldl -o tests/acc && tests/acc tests/otcc.c tests/otcc.out && diff tests/otcc.out tests/otcc.out-orig

libacc/tests/hello.out-orig

(40 B)

File changed.

No diff preview for this file type.

View original file

View changed file

libacc/tests/otcc.out-orig

(8.39 KiB)

File changed.

No diff preview for this file type.

View original file

View changed file