tools/testing/selftests/bpf/prog_tests/test_veristat.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/prog_tests/test_veristat.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/prog_tests/test_veristat.c
Extension
.c
Size
7267 bytes
Lines
262
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct fixture {
	char tmpfile[80];
	int fd;
	char *output;
	size_t sz;
	char veristat[80];
};

static struct fixture *init_fixture(void)
{
	struct fixture *fix = malloc(sizeof(struct fixture));

	/* for no_alu32 and cpuv4 veristat is in parent folder */
	if (access("./veristat", F_OK) == 0)
		strscpy(fix->veristat, "./veristat");
	else if (access("../veristat", F_OK) == 0)
		strscpy(fix->veristat, "../veristat");
	else
		PRINT_FAIL("Can't find veristat binary");

	snprintf(fix->tmpfile, sizeof(fix->tmpfile), "/tmp/test_veristat.XXXXXX");
	fix->fd = mkstemp(fix->tmpfile);
	fix->sz = 1000000;
	fix->output = malloc(fix->sz);
	return fix;
}

static void teardown_fixture(struct fixture *fix)
{
	free(fix->output);
	close(fix->fd);
	remove(fix->tmpfile);
	free(fix);
}

static void test_set_global_vars_succeeds(void)
{
	struct fixture *fix = init_fixture();

	SYS(out,
	    "%s set_global_vars.bpf.o"\
	    " -G \"var_s64 = 0xf000000000000001\" "\
	    " -G \"var_u64 = 0xfedcba9876543210\" "\
	    " -G \"var_s32 = -0x80000000\" "\
	    " -G \"var_u32 = 0x76543210\" "\
	    " -G \"var_s16 = -32768\" "\
	    " -G \"var_u16 = 60652\" "\
	    " -G \"var_s8 = -128\" "\
	    " -G \"var_u8 = 255\" "\
	    " -G \"var_ea = EA2\" "\
	    " -G \"var_eb  =  EB2\" "\
	    " -G \"var_ec=EC2\" "\
	    " -G \"var_b = 1\" "\
	    " -G \"struct1[2].struct2[1][2].u.var_u8[2]=170\" "\
	    " -G \"union1.struct3.var_u8_l = 0xaa\" "\
	    " -G \"union1.struct3.var_u8_h = 0xaa\" "\
	    " -G \"arr[3]= 171\" "	\
	    " -G \"arr[EA2] =172\" "	\
	    " -G \"enum_arr[EC2]=EA3\" " \
	    " -G \"three_d[31][7][EA2]=173\"" \
	    " -G \"struct1[2].struct2[1][2].u.mat[5][3]=174\" " \
	    " -G \"struct11 [ 7 ] [ 5 ] .struct2[0][1].u.mat[3][0] = 175\" " \
	    " -vl2 > %s", fix->veristat, fix->tmpfile);

	read(fix->fd, fix->output, fix->sz);
	__CHECK_STR("=0xf000000000000001 ", "var_s64 = 0xf000000000000001");
	__CHECK_STR("=0xfedcba9876543210 ", "var_u64 = 0xfedcba9876543210");
	__CHECK_STR("=0x80000000 ", "var_s32 = -0x80000000");
	__CHECK_STR("=0x76543210 ", "var_u32 = 0x76543210");
	__CHECK_STR("=0x8000 ", "var_s16 = -32768");
	__CHECK_STR("=0xecec ", "var_u16 = 60652");
	__CHECK_STR("=128 ", "var_s8 = -128");
	__CHECK_STR("=255 ", "var_u8 = 255");
	__CHECK_STR("=11 ", "var_ea = EA2");
	__CHECK_STR("=12 ", "var_eb = EB2");
	__CHECK_STR("=13 ", "var_ec = EC2");
	__CHECK_STR("=1 ", "var_b = 1");
	__CHECK_STR("=170 ", "struct1[2].struct2[1][2].u.var_u8[2]=170");
	__CHECK_STR("=0xaaaa ", "union1.var_u16 = 0xaaaa");
	__CHECK_STR("=171 ", "arr[3]= 171");
	__CHECK_STR("=172 ", "arr[EA2] =172");
	__CHECK_STR("=10 ", "enum_arr[EC2]=EA3");
	__CHECK_STR("=173 ", "matrix[31][7][11]=173");
	__CHECK_STR("=174 ", "struct1[2].struct2[1][2].u.mat[5][3]=174");
	__CHECK_STR("=175 ", "struct11[7][5].struct2[0][1].u.mat[3][0]=175");

out:
	teardown_fixture(fix);
}

Annotation

Implementation Notes