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

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#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
	1	/*
	2	* SPDX-License-Identifier: MIT
	3	*
	4	* Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	5	*/
	6
	7	#include <stdbool.h>
	8	#include "tap.h"
	9
	10	#define NUM_TESTS 2
	11
	12	int testint __attribute__((weak, visibility("hidden")));
	13	void *testptr __attribute__((weak, visibility("hidden")));
	14	struct {
	15	char a[24];
	16	} testsym_24_bytes __attribute__((weak, visibility("hidden")));
	17
	18	void *testfct_int(void);
	19	void *testfct_ptr(void);
	20	void *testfct_24_bytes(void);
	21
	22	void *testlibfct1_int(void);
	23	void *testlibfct1_ptr(void);
	24	void *testlibfct1_24_bytes(void);
	25
	26	void *testlibfct2_int(void);
	27	void *testlibfct2_ptr(void);
	28	void *testlibfct2_24_bytes(void);
	29
	30	enum {
	31	MATCH_PROGRAM_INT,
	32	MATCH_PROGRAM_PTR,
	33	MATCH_PROGRAM_24_BYTES,
	34	MATCH_LIB_INT,
	35	MATCH_LIB_PTR,
	36	MATCH_LIB_24_BYTES,
	37	NR_MATCH,
	38	};
	39
	40	static bool match_matrix[NR_MATCH];
	41
	42	int main()
	43	{
	44	plan_tests(NUM_TESTS);
	45
	46	if (testfct_int() == &testint)
	47	match_matrix[MATCH_PROGRAM_INT] = true;
	48	if (testfct_ptr() == &testptr)
	49	match_matrix[MATCH_PROGRAM_PTR] = true;
	50	if (testfct_24_bytes() == &testsym_24_bytes)
	51	match_matrix[MATCH_PROGRAM_24_BYTES] = true;
	52
	53	if (testlibfct1_int() == testlibfct2_int())
	54	match_matrix[MATCH_LIB_INT] = true;
	55	if (testlibfct1_ptr() == testlibfct2_ptr())
	56	match_matrix[MATCH_LIB_PTR] = true;
	57	if (testlibfct1_24_bytes() == testlibfct2_24_bytes())
	58	match_matrix[MATCH_LIB_24_BYTES] = true;
	59
	60	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (4 bytes integer object)",
	61	match_matrix[MATCH_PROGRAM_INT] ? "match" : "MISMATCH");
	62	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (pointer object)",
	63	match_matrix[MATCH_PROGRAM_PTR] ? "match" : "MISMATCH");
	64	diag("Address of weak symbol with hidden visibility %s between compile units within same module for main program (24 bytes structure object)",
	65	match_matrix[MATCH_PROGRAM_24_BYTES] ? "match" : "MISMATCH");
	66
	67	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (4 bytes integer object)",
	68	match_matrix[MATCH_LIB_INT] ? "match" : "MISMATCH");
	69	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (pointer object)",
	70	match_matrix[MATCH_LIB_PTR] ? "match" : "MISMATCH");
	71	diag("Address of weak symbol with hidden visibility %s between compile units within same module for shared library (24 bytes structure object)",
	72	match_matrix[MATCH_LIB_24_BYTES] ? "match" : "MISMATCH");
	73
	74	ok(match_matrix[MATCH_PROGRAM_INT] == match_matrix[MATCH_PROGRAM_PTR],
	75	"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within main program");
	76	ok(match_matrix[MATCH_LIB_INT] == match_matrix[MATCH_LIB_PTR],
	77	"Weak-hidden behavior is the same for 4 bytes integer and pointer objects within shared library");
	78
	79	return exit_status();
	80	}