[lttng-dev] [PATCH babeltrace 2/4] Extend test_bitfield coverage
Mathieu Desnoyers
mathieu.desnoyers at efficios.com
Mon May 13 14:11:33 EDT 2019
test_bitfield was mainly testing various write unit size. Add
variations of read unit size as well.
Previously, the test was only covering input from a 32-bit integer.
Additionally test source and destination of 64-bit.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
Change-Id: Ic2b7849140e04fe7cca3de576e31bfef8f0a03ae
---
tests/lib/test_bitfield.c | 562 ++++++++++++++++++++++++++++++++++++++++------
1 file changed, 491 insertions(+), 71 deletions(-)
diff --git a/tests/lib/test_bitfield.c b/tests/lib/test_bitfield.c
index efbbc30e..59bf89fd 100644
--- a/tests/lib/test_bitfield.c
+++ b/tests/lib/test_bitfield.c
@@ -3,7 +3,7 @@
*
* BabelTrace - bitfield test program
*
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
+ * Copyright 2010-2019 - Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -40,39 +40,109 @@ void fct(void)
/* Test array size, in bytes */
#define TEST_LEN 128
#define NR_TESTS 10
-#define SIGNED_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed"
-#define UNSIGNED_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned"
+#define SIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int dest, varying read unit size"
+#define SIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int source, varying write unit size"
+#define SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long dest, varying read unit size"
+#define SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long source, varying write unit size"
+#define UNSIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int dest, varying read unit size"
+#define UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int source, varying write unit size"
+#define UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long dest, varying read unit size"
+#define UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long source, varying write unit size"
#define DIAG_FMT_STR "Failed reading value written \"%s\"-wise, with start=%i" \
" and length=%i. Read %llX"
-unsigned int srcrand;
+unsigned int srcrand_ui;
+unsigned long long srcrand_ull;
+/*
+ * fls: returns the position of the most significant bit.
+ * Returns 0 if no bit is set, else returns the position of the most
+ * significant bit (from 1 to 32 on 32-bit, from 1 to 64 on 64-bit).
+ */
#if defined(__i386) || defined(__x86_64)
-
-static inline int fls(int x)
+static
+unsigned int fls_u32(uint32_t x)
{
int r;
- asm("bsrl %1,%0\n\t"
- "cmovzl %2,%0"
- : "=&r" (r) : "rm" (x), "rm" (-1));
+
+ __asm__ ("bsrl %1,%0\n\t"
+ "jnz 1f\n\t"
+ "movl $-1,%0\n\t"
+ "1:\n\t"
+ : "=r" (r) : "rm" (x));
return r + 1;
}
-
+#define HAS_FLS_U32
#elif defined(__PPC__)
-
-static __inline__ int fls(unsigned int x)
+static
+unsigned int fls_u32(uint32_t x)
{
int lz;
- asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
+ __asm__ ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
return 32 - lz;
}
+#define HAS_FLS_U32
+#endif
+
+#if defined(__x86_64)
+static
+unsigned int fls_u64(uint64_t x)
+{
+ long r;
-#else
+ __asm__ ("bsrq %1,%0\n\t"
+ "jnz 1f\n\t"
+ "movq $-1,%0\n\t"
+ "1:\n\t"
+ : "=r" (r) : "rm" (x));
+ return r + 1;
+}
+#define HAS_FLS_U64
+#endif
+
+#ifndef HAS_FLS_U64
+static
+unsigned int fls_u64(uint64_t x)
+{
+ unsigned int r = 64;
+
+ if (!x)
+ return 0;
+
+ if (!(x & 0xFFFFFFFF00000000ULL)) {
+ x <<= 32;
+ r -= 32;
+ }
+ if (!(x & 0xFFFF000000000000ULL)) {
+ x <<= 16;
+ r -= 16;
+ }
+ if (!(x & 0xFF00000000000000ULL)) {
+ x <<= 8;
+ r -= 8;
+ }
+ if (!(x & 0xF000000000000000ULL)) {
+ x <<= 4;
+ r -= 4;
+ }
+ if (!(x & 0xC000000000000000ULL)) {
+ x <<= 2;
+ r -= 2;
+ }
+ if (!(x & 0x8000000000000000ULL)) {
+ x <<= 1;
+ r -= 1;
+ }
+ return r;
+}
+#endif
-static int fls(unsigned int x)
+#ifndef HAS_FLS_U32
+static
+unsigned int fls_u32(uint32_t x)
{
- int r = 32;
+ unsigned int r = 32;
if (!x)
return 0;
@@ -98,7 +168,6 @@ static int fls(unsigned int x)
}
return r;
}
-
#endif
#define print_byte_array(c, len) \
@@ -133,9 +202,9 @@ do { \
(val) != (ref); \
})
-void run_test_unsigned(void)
+void run_test_unsigned_write(void)
{
- unsigned int src, nrbits;
+ unsigned int src_ui, nrbits_ui, nrbits_ull;
union {
unsigned char c[TEST_LEN];
unsigned short s[TEST_LEN/sizeof(unsigned short)];
@@ -143,62 +212,229 @@ void run_test_unsigned(void)
unsigned long l[TEST_LEN/sizeof(unsigned long)];
unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
} target;
- unsigned long long readval;
+ unsigned long long src_ull, readval;
unsigned int s, l;
- src = srcrand;
- nrbits = fls(src);
+ src_ui = srcrand_ui;
+ nrbits_ui = fls_u32(src_ui);
+ /* Write from unsigned integer src input. */
for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
- for (l = nrbits; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ for (l = nrbits_ui; l < (CHAR_BIT * TEST_LEN) - s; l++) {
init_byte_array(target.c, TEST_LEN, 0xFF);
- bt_bitfield_write(target.c, unsigned char, s, l, src);
+ bt_bitfield_write(target.c, unsigned char, s, l, src_ui);
bt_bitfield_read(target.c, unsigned char, s, l, &readval);
- if (check_result(src, readval, target.c, unsigned char,
- s, l, UNSIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ui, readval, target.c, unsigned char,
+ s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0xFF);
- bt_bitfield_write(target.s, unsigned short, s, l, src);
+ bt_bitfield_write(target.s, unsigned short, s, l, src_ui);
bt_bitfield_read(target.c, unsigned char, s, l, &readval);
- if (check_result(src, readval, target.c, unsigned short,
- s, l, UNSIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ui, readval, target.c, unsigned short,
+ s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0xFF);
- bt_bitfield_write(target.i, unsigned int, s, l, src);
+ bt_bitfield_write(target.i, unsigned int, s, l, src_ui);
bt_bitfield_read(target.c, unsigned char, s, l, &readval);
- if (check_result(src, readval, target.c, unsigned int,
- s, l, UNSIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ui, readval, target.c, unsigned int,
+ s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0xFF);
- bt_bitfield_write(target.l, unsigned long, s, l, src);
+ bt_bitfield_write(target.l, unsigned long, s, l, src_ui);
bt_bitfield_read(target.c, unsigned char, s, l, &readval);
- if (check_result(src, readval, target.c, unsigned long,
- s, l, UNSIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ui, readval, target.c, unsigned long,
+ s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0xFF);
- bt_bitfield_write(target.ll, unsigned long long, s, l, src);
+ bt_bitfield_write(target.ll, unsigned long long, s, l, src_ui);
bt_bitfield_read(target.c, unsigned char, s, l, &readval);
- if (check_result(src, readval, target.c, unsigned long long,
- s, l, UNSIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ui, readval, target.c, unsigned long long,
+ s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
return;
}
}
}
+ pass(UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_ui);
+
+ src_ull = srcrand_ull;
+ nrbits_ull = fls_u64(src_ull);
+
+ /* Write from unsigned long long src input. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_ull; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.c, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval);
+ if (check_result(src_ull, readval, target.c, unsigned char,
+ s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.s, unsigned short, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval);
+ if (check_result(src_ull, readval, target.c, unsigned short,
+ s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.i, unsigned int, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval);
+ if (check_result(src_ull, readval, target.c, unsigned int,
+ s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
- pass(UNSIGNED_TEST_DESC_FMT_STR, src);
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.l, unsigned long, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval);
+ if (check_result(src_ull, readval, target.c, unsigned long,
+ s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.ll, unsigned long long, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval);
+ if (check_result(src_ull, readval, target.c, unsigned long long,
+ s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ull);
}
-void run_test_signed(void)
+void run_test_unsigned_read(void)
{
- int src, nrbits;
+ unsigned int src_ui, nrbits_ui, nrbits_ull, readval_ui;
+ union {
+ unsigned char c[TEST_LEN];
+ unsigned short s[TEST_LEN/sizeof(unsigned short)];
+ unsigned int i[TEST_LEN/sizeof(unsigned int)];
+ unsigned long l[TEST_LEN/sizeof(unsigned long)];
+ unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
+ } target;
+ unsigned long long src_ull, readval_ull;
+ unsigned int s, l;
+
+ src_ui = srcrand_ui;
+ nrbits_ui = fls_u32(src_ui);
+
+ /* Read to unsigned integer readval output. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_ui; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.c, unsigned char, s, l, src_ui);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval_ui);
+ if (check_result(src_ui, readval_ui, target.c, unsigned char,
+ s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.s, unsigned char, s, l, src_ui);
+ bt_bitfield_read(target.c, unsigned short, s, l, &readval_ui);
+ if (check_result(src_ui, readval_ui, target.c, unsigned short,
+ s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.i, unsigned char, s, l, src_ui);
+ bt_bitfield_read(target.c, unsigned int, s, l, &readval_ui);
+ if (check_result(src_ui, readval_ui, target.c, unsigned int,
+ s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.l, unsigned char, s, l, src_ui);
+ bt_bitfield_read(target.c, unsigned long, s, l, &readval_ui);
+ if (check_result(src_ui, readval_ui, target.c, unsigned long,
+ s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.ll, unsigned char, s, l, src_ui);
+ bt_bitfield_read(target.c, unsigned long long, s, l, &readval_ui);
+ if (check_result(src_ui, readval_ui, target.c, unsigned long long,
+ s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(UNSIGNED_INT_READ_TEST_DESC_FMT_STR, src_ui);
+
+ src_ull = srcrand_ull;
+ nrbits_ull = fls_u64(src_ull);
+
+ /* Read to unsigned long long readval output. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_ull; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.c, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned char, s, l, &readval_ull);
+ if (check_result(src_ull, readval_ull, target.c, unsigned char,
+ s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.s, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned short, s, l, &readval_ull);
+ if (check_result(src_ull, readval_ull, target.c, unsigned short,
+ s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.i, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned int, s, l, &readval_ull);
+ if (check_result(src_ull, readval_ull, target.c, unsigned int,
+ s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.l, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned long, s, l, &readval_ull);
+ if (check_result(src_ull, readval_ull, target.c, unsigned long,
+ s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.ll, unsigned char, s, l, src_ull);
+ bt_bitfield_read(target.c, unsigned long long, s, l, &readval_ull);
+ if (check_result(src_ull, readval_ull, target.c, unsigned long long,
+ s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ull);
+}
+
+void run_test_unsigned(void)
+{
+ run_test_unsigned_write();
+ run_test_unsigned_read();
+}
+
+void run_test_signed_write(void)
+{
+ int src_i, nrbits_i, nrbits_ll;
union {
signed char c[TEST_LEN];
short s[TEST_LEN/sizeof(short)];
@@ -206,88 +442,272 @@ void run_test_signed(void)
long l[TEST_LEN/sizeof(long)];
long long ll[TEST_LEN/sizeof(long long)];
} target;
- long long readval;
+ long long src_ll, readval;
unsigned int s, l;
- src = srcrand;
- if (src & 0x80000000U)
- nrbits = fls(~src) + 1; /* Find least significant bit conveying sign */
+ src_i = srcrand_ui;
+ if (src_i & 0x80000000U)
+ nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */
+ else
+ nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */
+
+ /* Write from signed integer src input. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_i; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0x0);
+ bt_bitfield_write(target.c, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval);
+ if (check_result(src_i, readval, target.c, signed char,
+ s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0x0);
+ bt_bitfield_write(target.s, short, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval);
+ if (check_result(src_i, readval, target.c, short,
+ s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0x0);
+ bt_bitfield_write(target.i, int, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval);
+ if (check_result(src_i, readval, target.c, int,
+ s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0x0);
+ bt_bitfield_write(target.l, long, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval);
+ if (check_result(src_i, readval, target.c, long,
+ s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0x0);
+ bt_bitfield_write(target.ll, long long, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval);
+ if (check_result(src_i, readval, target.c, long long,
+ s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(SIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_i);
+
+ src_ll = srcrand_ull;
+ if (src_ll & 0x8000000000000000ULL)
+ nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */
else
- nrbits = fls(src) + 1; /* Keep sign at 0 */
+ nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */
+ /* Write from signed long long src input. */
for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
- for (l = nrbits; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ for (l = nrbits_ll; l < (CHAR_BIT * TEST_LEN) - s; l++) {
init_byte_array(target.c, TEST_LEN, 0x0);
- bt_bitfield_write(target.c, signed char, s, l, src);
+ bt_bitfield_write(target.c, signed char, s, l, src_ll);
bt_bitfield_read(target.c, signed char, s, l, &readval);
- if (check_result(src, readval, target.c, signed char,
- s, l, SIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ll, readval, target.c, signed char,
+ s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0x0);
- bt_bitfield_write(target.s, short, s, l, src);
+ bt_bitfield_write(target.s, short, s, l, src_ll);
bt_bitfield_read(target.c, signed char, s, l, &readval);
- if (check_result(src, readval, target.c, short,
- s, l, SIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ll, readval, target.c, short,
+ s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0x0);
- bt_bitfield_write(target.i, int, s, l, src);
+ bt_bitfield_write(target.i, int, s, l, src_ll);
bt_bitfield_read(target.c, signed char, s, l, &readval);
- if (check_result(src, readval, target.c, int,
- s, l, SIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ll, readval, target.c, int,
+ s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0x0);
- bt_bitfield_write(target.l, long, s, l, src);
+ bt_bitfield_write(target.l, long, s, l, src_ll);
bt_bitfield_read(target.c, signed char, s, l, &readval);
- if (check_result(src, readval, target.c, long,
- s, l, SIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ll, readval, target.c, long,
+ s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
return;
}
init_byte_array(target.c, TEST_LEN, 0x0);
- bt_bitfield_write(target.ll, long long, s, l, src);
+ bt_bitfield_write(target.ll, long long, s, l, src_ll);
bt_bitfield_read(target.c, signed char, s, l, &readval);
- if (check_result(src, readval, target.c, long long,
- s, l, SIGNED_TEST_DESC_FMT_STR)) {
+ if (check_result(src_ll, readval, target.c, long long,
+ s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) {
return;
}
}
}
+ pass(SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ll);
+}
- pass(SIGNED_TEST_DESC_FMT_STR, src);
+void run_test_signed_read(void)
+{
+ int src_i, nrbits_i, nrbits_ll, readval_i;
+ union {
+ unsigned char c[TEST_LEN];
+ unsigned short s[TEST_LEN/sizeof(unsigned short)];
+ unsigned int i[TEST_LEN/sizeof(unsigned int)];
+ unsigned long l[TEST_LEN/sizeof(unsigned long)];
+ unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
+ } target;
+ long long src_ll, readval_ll;
+ unsigned int s, l;
+
+ src_i = srcrand_ui;
+ if (src_i & 0x80000000U)
+ nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */
+ else
+ nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */
+
+ /* Read to signed integer readval output. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_i; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.c, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, signed char, s, l, &readval_i);
+ if (check_result(src_i, readval_i, target.c, signed char,
+ s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.s, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, short, s, l, &readval_i);
+ if (check_result(src_i, readval_i, target.c, short,
+ s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.i, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, int, s, l, &readval_i);
+ if (check_result(src_i, readval_i, target.c, int,
+ s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.l, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, long, s, l, &readval_i);
+ if (check_result(src_i, readval_i, target.c, long,
+ s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.ll, signed char, s, l, src_i);
+ bt_bitfield_read(target.c, long long, s, l, &readval_i);
+ if (check_result(src_i, readval_i, target.c, long long,
+ s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(SIGNED_INT_READ_TEST_DESC_FMT_STR, src_i);
+
+ src_ll = srcrand_ull;
+ if (src_ll & 0x8000000000000000ULL)
+ nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */
+ else
+ nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */
+
+ /* Read to unsigned long long readval output. */
+ for (s = 0; s < CHAR_BIT * TEST_LEN; s++) {
+ for (l = nrbits_ll; l < (CHAR_BIT * TEST_LEN) - s; l++) {
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.c, signed char, s, l, src_ll);
+ bt_bitfield_read(target.c, signed char, s, l, &readval_ll);
+ if (check_result(src_ll, readval_ll, target.c, signed char,
+ s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.s, signed char, s, l, src_ll);
+ bt_bitfield_read(target.c, short, s, l, &readval_ll);
+ if (check_result(src_ll, readval_ll, target.c, short,
+ s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.i, signed char, s, l, src_ll);
+ bt_bitfield_read(target.c, int, s, l, &readval_ll);
+ if (check_result(src_ll, readval_ll, target.c, int,
+ s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.l, signed char, s, l, src_ll);
+ bt_bitfield_read(target.c, long, s, l, &readval_ll);
+ if (check_result(src_ll, readval_ll, target.c, long,
+ s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+
+ init_byte_array(target.c, TEST_LEN, 0xFF);
+ bt_bitfield_write(target.ll, signed char, s, l, src_ll);
+ bt_bitfield_read(target.c, long long, s, l, &readval_ll);
+ if (check_result(src_ll, readval_ll, target.c, long long,
+ s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) {
+ return;
+ }
+ }
+ }
+ pass(SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ll);
+}
+
+void run_test_signed(void)
+{
+ run_test_signed_write();
+ run_test_signed_read();
}
void run_test(void)
{
int i;
- plan_tests(NR_TESTS * 2 + 6);
+ plan_tests(NR_TESTS * 8 + 24);
srand(time(NULL));
- srcrand = 0;
+ srcrand_ui = 0;
+ srcrand_ull = 0;
run_test_unsigned();
- srcrand = 0;
+ srcrand_ui = 0;
+ srcrand_ull = 0;
run_test_signed();
- srcrand = 1;
+ srcrand_ui = 1;
+ srcrand_ull = 1;
run_test_unsigned();
- srcrand = ~0U;
+ srcrand_ui = ~0U;
+ srcrand_ull = ~0ULL;
run_test_unsigned();
- srcrand = -1;
+ srcrand_ui = -1U;
+ srcrand_ull = -1ULL;
run_test_signed();
- srcrand = (int)0x80000000U;
+ srcrand_ui = 0x80000000U;
+ srcrand_ull = 0x8000000000000000ULL;
run_test_signed();
for (i = 0; i < NR_TESTS; i++) {
- srcrand = rand();
+ srcrand_ui = rand();
+ srcrand_ull = ((unsigned long long) (unsigned int) rand() << 32) |
+ (unsigned long long) (unsigned int) rand();
run_test_unsigned();
run_test_signed();
}
--
2.11.0
More information about the lttng-dev
mailing list