109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
#include "test/jemalloc_test.h"
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#define QUARANTINE_SIZE 8192
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#define STRINGIFY_HELPER(x) #x
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#define STRINGIFY(x) STRINGIFY_HELPER(x)
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#ifdef JEMALLOC_FILL
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const char *malloc_conf = "abort:false,junk:true,redzone:true,quarantine:"
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STRINGIFY(QUARANTINE_SIZE);
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#endif
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void
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quarantine_clear(void)
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{
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void *p;
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p = mallocx(QUARANTINE_SIZE*2, 0);
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assert_ptr_not_null(p, "Unexpected mallocx() failure");
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dallocx(p, 0);
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}
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TEST_BEGIN(test_quarantine)
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{
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#define SZ ZU(256)
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#define NQUARANTINED (QUARANTINE_SIZE/SZ)
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void *quarantined[NQUARANTINED+1];
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size_t i, j;
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test_skip_if(!config_fill);
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assert_zu_eq(nallocx(SZ, 0), SZ,
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"SZ=%zu does not precisely equal a size class", SZ);
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quarantine_clear();
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/*
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* Allocate enough regions to completely fill the quarantine, plus one
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* more. The last iteration occurs with a completely full quarantine,
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* but no regions should be drained from the quarantine until the last
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* deallocation occurs. Therefore no region recycling should occur
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* until after this loop completes.
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*/
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for (i = 0; i < NQUARANTINED+1; i++) {
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void *p = mallocx(SZ, 0);
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assert_ptr_not_null(p, "Unexpected mallocx() failure");
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quarantined[i] = p;
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dallocx(p, 0);
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for (j = 0; j < i; j++) {
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assert_ptr_ne(p, quarantined[j],
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"Quarantined region recycled too early; "
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"i=%zu, j=%zu", i, j);
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}
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}
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#undef NQUARANTINED
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#undef SZ
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}
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TEST_END
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static bool detected_redzone_corruption;
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static void
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arena_redzone_corruption_replacement(void *ptr, size_t usize, bool after,
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size_t offset, uint8_t byte)
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{
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detected_redzone_corruption = true;
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}
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TEST_BEGIN(test_quarantine_redzone)
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{
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char *s;
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arena_redzone_corruption_t *arena_redzone_corruption_orig;
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test_skip_if(!config_fill);
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arena_redzone_corruption_orig = arena_redzone_corruption;
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arena_redzone_corruption = arena_redzone_corruption_replacement;
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/* Test underflow. */
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detected_redzone_corruption = false;
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s = (char *)mallocx(1, 0);
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assert_ptr_not_null((void *)s, "Unexpected mallocx() failure");
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s[-1] = 0xbb;
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dallocx(s, 0);
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assert_true(detected_redzone_corruption,
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"Did not detect redzone corruption");
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/* Test overflow. */
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detected_redzone_corruption = false;
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s = (char *)mallocx(1, 0);
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assert_ptr_not_null((void *)s, "Unexpected mallocx() failure");
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s[sallocx(s, 0)] = 0xbb;
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dallocx(s, 0);
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assert_true(detected_redzone_corruption,
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"Did not detect redzone corruption");
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arena_redzone_corruption = arena_redzone_corruption_orig;
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}
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TEST_END
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int
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main(void)
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{
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return (test(
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test_quarantine,
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test_quarantine_redzone));
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}
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