server-skynet-source-3rd-je.../test/integration/rallocx.c

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#include "test/jemalloc_test.h"
static unsigned
get_nsizes_impl(const char *cmd) {
unsigned ret;
size_t z;
z = sizeof(unsigned);
expect_d_eq(mallctl(cmd, (void *)&ret, &z, NULL, 0), 0,
"Unexpected mallctl(\"%s\", ...) failure", cmd);
return ret;
}
static unsigned
get_nlarge(void) {
return get_nsizes_impl("arenas.nlextents");
}
static size_t
get_size_impl(const char *cmd, size_t ind) {
size_t ret;
size_t z;
size_t mib[4];
size_t miblen = 4;
z = sizeof(size_t);
expect_d_eq(mallctlnametomib(cmd, mib, &miblen),
0, "Unexpected mallctlnametomib(\"%s\", ...) failure", cmd);
mib[2] = ind;
z = sizeof(size_t);
expect_d_eq(mallctlbymib(mib, miblen, (void *)&ret, &z, NULL, 0),
0, "Unexpected mallctlbymib([\"%s\", %zu], ...) failure", cmd, ind);
return ret;
}
static size_t
get_large_size(size_t ind) {
return get_size_impl("arenas.lextent.0.size", ind);
}
TEST_BEGIN(test_grow_and_shrink) {
/*
* Use volatile to workaround buffer overflow false positives
* (-D_FORTIFY_SOURCE=3).
*/
void *volatile p, *volatile q;
size_t tsz;
#define NCYCLES 3
unsigned i, j;
#define NSZS 1024
size_t szs[NSZS];
#define MAXSZ ZU(12 * 1024 * 1024)
p = mallocx(1, 0);
expect_ptr_not_null(p, "Unexpected mallocx() error");
szs[0] = sallocx(p, 0);
for (i = 0; i < NCYCLES; i++) {
for (j = 1; j < NSZS && szs[j-1] < MAXSZ; j++) {
q = rallocx(p, szs[j-1]+1, 0);
expect_ptr_not_null(q,
"Unexpected rallocx() error for size=%zu-->%zu",
szs[j-1], szs[j-1]+1);
szs[j] = sallocx(q, 0);
expect_zu_ne(szs[j], szs[j-1]+1,
"Expected size to be at least: %zu", szs[j-1]+1);
p = q;
}
for (j--; j > 0; j--) {
q = rallocx(p, szs[j-1], 0);
expect_ptr_not_null(q,
"Unexpected rallocx() error for size=%zu-->%zu",
szs[j], szs[j-1]);
tsz = sallocx(q, 0);
expect_zu_eq(tsz, szs[j-1],
"Expected size=%zu, got size=%zu", szs[j-1], tsz);
p = q;
}
}
dallocx(p, 0);
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#undef MAXSZ
#undef NSZS
#undef NCYCLES
}
TEST_END
static bool
validate_fill(void *p, uint8_t c, size_t offset, size_t len) {
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bool ret = false;
/*
* Use volatile to workaround buffer overflow false positives
* (-D_FORTIFY_SOURCE=3).
*/
uint8_t *volatile buf = (uint8_t *)p;
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size_t i;
for (i = 0; i < len; i++) {
uint8_t b = buf[offset+i];
if (b != c) {
test_fail("Allocation at %p (len=%zu) contains %#x "
"rather than %#x at offset %zu", p, len, b, c,
offset+i);
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ret = true;
}
}
return ret;
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}
TEST_BEGIN(test_zero) {
/*
* Use volatile to workaround buffer overflow false positives
* (-D_FORTIFY_SOURCE=3).
*/
void *volatile p, *volatile q;
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size_t psz, qsz, i, j;
size_t start_sizes[] = {1, 3*1024, 63*1024, 4095*1024};
#define FILL_BYTE 0xaaU
#define RANGE 2048
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for (i = 0; i < sizeof(start_sizes)/sizeof(size_t); i++) {
size_t start_size = start_sizes[i];
p = mallocx(start_size, MALLOCX_ZERO);
expect_ptr_not_null(p, "Unexpected mallocx() error");
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psz = sallocx(p, 0);
expect_false(validate_fill(p, 0, 0, psz),
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"Expected zeroed memory");
memset(p, FILL_BYTE, psz);
expect_false(validate_fill(p, FILL_BYTE, 0, psz),
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"Expected filled memory");
for (j = 1; j < RANGE; j++) {
q = rallocx(p, start_size+j, MALLOCX_ZERO);
expect_ptr_not_null(q, "Unexpected rallocx() error");
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qsz = sallocx(q, 0);
if (q != p || qsz != psz) {
expect_false(validate_fill(q, FILL_BYTE, 0,
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psz), "Expected filled memory");
expect_false(validate_fill(q, 0, psz, qsz-psz),
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"Expected zeroed memory");
}
if (psz != qsz) {
memset((void *)((uintptr_t)q+psz), FILL_BYTE,
qsz-psz);
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psz = qsz;
}
p = q;
}
expect_false(validate_fill(p, FILL_BYTE, 0, psz),
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"Expected filled memory");
dallocx(p, 0);
}
#undef FILL_BYTE
}
TEST_END
TEST_BEGIN(test_align) {
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void *p, *q;
size_t align;
#define MAX_ALIGN (ZU(1) << 25)
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align = ZU(1);
p = mallocx(1, MALLOCX_ALIGN(align));
expect_ptr_not_null(p, "Unexpected mallocx() error");
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for (align <<= 1; align <= MAX_ALIGN; align <<= 1) {
q = rallocx(p, 1, MALLOCX_ALIGN(align));
expect_ptr_not_null(q,
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"Unexpected rallocx() error for align=%zu", align);
expect_ptr_null(
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(void *)((uintptr_t)q & (align-1)),
"%p inadequately aligned for align=%zu",
q, align);
p = q;
}
dallocx(p, 0);
#undef MAX_ALIGN
}
TEST_END
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TEST_BEGIN(test_align_enum) {
/* Span both small sizes and large sizes. */
#define LG_MIN 12
#define LG_MAX 15
for (size_t lg_align = LG_MIN; lg_align <= LG_MAX; ++lg_align) {
for (size_t lg_size = LG_MIN; lg_size <= LG_MAX; ++lg_size) {
size_t size = 1 << lg_size;
for (size_t lg_align_next = LG_MIN;
lg_align_next <= LG_MAX; ++lg_align_next) {
int flags = MALLOCX_LG_ALIGN(lg_align);
void *p = mallocx(1, flags);
assert_ptr_not_null(p,
"Unexpected mallocx() error");
assert_zu_eq(nallocx(1, flags),
TEST_MALLOC_SIZE(p),
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"Wrong mallocx() usable size");
int flags_next =
MALLOCX_LG_ALIGN(lg_align_next);
p = rallocx(p, size, flags_next);
assert_ptr_not_null(p,
"Unexpected rallocx() error");
expect_zu_eq(nallocx(size, flags_next),
TEST_MALLOC_SIZE(p),
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"Wrong rallocx() usable size");
free(p);
}
}
}
#undef LG_MAX
#undef LG_MIN
}
TEST_END
TEST_BEGIN(test_lg_align_and_zero) {
/*
* Use volatile to workaround buffer overflow false positives
* (-D_FORTIFY_SOURCE=3).
*/
void *volatile p, *volatile q;
unsigned lg_align;
size_t sz;
#define MAX_LG_ALIGN 25
#define MAX_VALIDATE (ZU(1) << 22)
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lg_align = 0;
p = mallocx(1, MALLOCX_LG_ALIGN(lg_align)|MALLOCX_ZERO);
expect_ptr_not_null(p, "Unexpected mallocx() error");
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for (lg_align++; lg_align <= MAX_LG_ALIGN; lg_align++) {
q = rallocx(p, 1, MALLOCX_LG_ALIGN(lg_align)|MALLOCX_ZERO);
expect_ptr_not_null(q,
"Unexpected rallocx() error for lg_align=%u", lg_align);
expect_ptr_null(
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(void *)((uintptr_t)q & ((ZU(1) << lg_align)-1)),
"%p inadequately aligned for lg_align=%u", q, lg_align);
sz = sallocx(q, 0);
if ((sz << 1) <= MAX_VALIDATE) {
expect_false(validate_fill(q, 0, 0, sz),
"Expected zeroed memory");
} else {
expect_false(validate_fill(q, 0, 0, MAX_VALIDATE),
"Expected zeroed memory");
expect_false(validate_fill(
(void *)((uintptr_t)q+sz-MAX_VALIDATE),
0, 0, MAX_VALIDATE), "Expected zeroed memory");
}
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p = q;
}
dallocx(p, 0);
#undef MAX_VALIDATE
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#undef MAX_LG_ALIGN
}
TEST_END
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
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/*
* GCC "-Walloc-size-larger-than" warning detects when one of the memory
* allocation functions is called with a size larger than the maximum size that
* they support. Here we want to explicitly test that the allocation functions
* do indeed fail properly when this is the case, which triggers the warning.
* Therefore we disable the warning for these tests.
*/
JEMALLOC_DIAGNOSTIC_PUSH
JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN
TEST_BEGIN(test_overflow) {
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size_t largemax;
void *p;
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largemax = get_large_size(get_nlarge()-1);
p = mallocx(1, 0);
expect_ptr_not_null(p, "Unexpected mallocx() failure");
expect_ptr_null(rallocx(p, largemax+1, 0),
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"Expected OOM for rallocx(p, size=%#zx, 0)", largemax+1);
expect_ptr_null(rallocx(p, ZU(PTRDIFF_MAX)+1, 0),
"Expected OOM for rallocx(p, size=%#zx, 0)", ZU(PTRDIFF_MAX)+1);
expect_ptr_null(rallocx(p, SIZE_T_MAX, 0),
"Expected OOM for rallocx(p, size=%#zx, 0)", SIZE_T_MAX);
expect_ptr_null(rallocx(p, 1, MALLOCX_ALIGN(ZU(PTRDIFF_MAX)+1)),
"Expected OOM for rallocx(p, size=1, MALLOCX_ALIGN(%#zx))",
ZU(PTRDIFF_MAX)+1);
dallocx(p, 0);
}
TEST_END
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
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/* Re-enable the "-Walloc-size-larger-than=" warning */
JEMALLOC_DIAGNOSTIC_POP
int
main(void) {
return test(
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test_grow_and_shrink,
test_zero,
test_align,
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test_align_enum,
test_lg_align_and_zero,
test_overflow);
}