[lttng-ust.git] / tests / gcc-weak-hidden / main.c

/*
 * Copyright (C) 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
 * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
 *
 * Permission is hereby granted to use or copy this program for any
 * purpose, provided the above notices are retained on all copies.
 * Permission to modify the code and to distribute modified code is
 * granted, provided the above notices are retained, and a notice that
 * the code was modified is included with the above copyright notice.
 */

#include <stdbool.h>
#include "tap.h"

#define NUM_TESTS 2

int testint __attribute__((weak, visibility("hidden")));
void *testptr __attribute__((weak, visibility("hidden")));
struct {
	char a[24];
} testsym_24_bytes __attribute__((weak, visibility("hidden")));

void *testfct_int(void);
void *testfct_ptr(void);
void *testfct_24_bytes(void);

void *testlibfct1_int(void);
void *testlibfct1_ptr(void);
void *testlibfct1_24_bytes(void);

void *testlibfct2_int(void);
void *testlibfct2_ptr(void);
void *testlibfct2_24_bytes(void);

enum {
	MATCH_PROGRAM_INT,
	MATCH_PROGRAM_PTR,
	MATCH_PROGRAM_24_BYTES,
	MATCH_LIB_INT,
	MATCH_LIB_PTR,
	MATCH_LIB_24_BYTES,
	NR_MATCH,
};

static bool match_matrix[NR_MATCH];

int main()
{
	plan_tests(NUM_TESTS);

	if (testfct_int() == &testint)
		match_matrix[MATCH_PROGRAM_INT] = true;
	if (testfct_ptr() == &testptr)
		match_matrix[MATCH_PROGRAM_PTR] = true;
	if (testfct_24_bytes() == &testsym_24_bytes)
		match_matrix[MATCH_PROGRAM_24_BYTES] = true;

	if (testlibfct1_int() == testlibfct2_int())
		match_matrix[MATCH_LIB_INT] = true;
	if (testlibfct1_ptr() == testlibfct2_ptr())
		match_matrix[MATCH_LIB_PTR] = true;
	if (testlibfct1_24_bytes() == testlibfct2_24_bytes())
		match_matrix[MATCH_LIB_24_BYTES] = true;

	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (4 bytes integer object)",
		match_matrix[MATCH_PROGRAM_INT] ? "match" : "MISMATCH");
	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (pointer object)",
		match_matrix[MATCH_PROGRAM_PTR] ? "match" : "MISMATCH");
	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (24 bytes structure object)",
		match_matrix[MATCH_PROGRAM_24_BYTES] ? "match" : "MISMATCH");

	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (4 bytes integer object)",
		match_matrix[MATCH_LIB_INT] ? "match" : "MISMATCH");
	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (pointer object)",
		match_matrix[MATCH_LIB_PTR] ? "match" : "MISMATCH");
	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (24 bytes structure object)",
		match_matrix[MATCH_LIB_24_BYTES] ? "match" : "MISMATCH");

	ok(match_matrix[MATCH_PROGRAM_INT] == match_matrix[MATCH_PROGRAM_PTR],
		"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within main program");
	ok(match_matrix[MATCH_LIB_INT] == match_matrix[MATCH_LIB_PTR],
		"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within shared library");

	return exit_status();
}
Commit	Line	Data
5a673446 MD	1	/*
	2	* Copyright (C) 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	3	*
	4	* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
	5	* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
	6	*
	7	* Permission is hereby granted to use or copy this program for any
	8	* purpose, provided the above notices are retained on all copies.
	9	* Permission to modify the code and to distribute modified code is
	10	* granted, provided the above notices are retained, and a notice that
	11	* the code was modified is included with the above copyright notice.
	12	*/
3227b2b9 MD	13
3227b2b9 MD	14	#include <stdbool.h>
5a673446 MD	15	#include "tap.h"
	16
	17	#define NUM_TESTS 2
	18
3227b2b9 MD	19	int testint __attribute__((weak, visibility("hidden")));
	20	void *testptr __attribute__((weak, visibility("hidden")));
	21	struct {
	22	char a[24];
	23	} testsym_24_bytes __attribute__((weak, visibility("hidden")));
	24
	25	void *testfct_int(void);
	26	void *testfct_ptr(void);
	27	void *testfct_24_bytes(void);
	28
	29	void *testlibfct1_int(void);
	30	void *testlibfct1_ptr(void);
	31	void *testlibfct1_24_bytes(void);
	32
	33	void *testlibfct2_int(void);
	34	void *testlibfct2_ptr(void);
	35	void *testlibfct2_24_bytes(void);
	36
	37	enum {
	38	MATCH_PROGRAM_INT,
	39	MATCH_PROGRAM_PTR,
	40	MATCH_PROGRAM_24_BYTES,
	41	MATCH_LIB_INT,
	42	MATCH_LIB_PTR,
	43	MATCH_LIB_24_BYTES,
	44	NR_MATCH,
	45	};
5a673446	46
3227b2b9	47	static bool match_matrix[NR_MATCH];
5a673446 MD	48
	49	int main()
	50	{
	51	plan_tests(NUM_TESTS);
3227b2b9 MD	52
	53	if (testfct_int() == &testint)
	54	match_matrix[MATCH_PROGRAM_INT] = true;
	55	if (testfct_ptr() == &testptr)
	56	match_matrix[MATCH_PROGRAM_PTR] = true;
	57	if (testfct_24_bytes() == &testsym_24_bytes)
	58	match_matrix[MATCH_PROGRAM_24_BYTES] = true;
	59
	60	if (testlibfct1_int() == testlibfct2_int())
	61	match_matrix[MATCH_LIB_INT] = true;
	62	if (testlibfct1_ptr() == testlibfct2_ptr())
	63	match_matrix[MATCH_LIB_PTR] = true;
	64	if (testlibfct1_24_bytes() == testlibfct2_24_bytes())
	65	match_matrix[MATCH_LIB_24_BYTES] = true;
	66
	67	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (4 bytes integer object)",
	68	match_matrix[MATCH_PROGRAM_INT] ? "match" : "MISMATCH");
	69	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (pointer object)",
	70	match_matrix[MATCH_PROGRAM_PTR] ? "match" : "MISMATCH");
	71	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (24 bytes structure object)",
	72	match_matrix[MATCH_PROGRAM_24_BYTES] ? "match" : "MISMATCH");
	73
	74	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (4 bytes integer object)",
	75	match_matrix[MATCH_LIB_INT] ? "match" : "MISMATCH");
	76	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (pointer object)",
	77	match_matrix[MATCH_LIB_PTR] ? "match" : "MISMATCH");
	78	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (24 bytes structure object)",
	79	match_matrix[MATCH_LIB_24_BYTES] ? "match" : "MISMATCH");
	80
c62783e7 MD	81	ok(match_matrix[MATCH_PROGRAM_INT] == match_matrix[MATCH_PROGRAM_PTR],
	82	"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within main program");
	83	ok(match_matrix[MATCH_LIB_INT] == match_matrix[MATCH_LIB_PTR],
	84	"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within shared library");
bf746e7d MJ	85
bf746e7d MJ	86	return exit_status();
5a673446	87	}