mirror of
https://github.com/GrapheneOS/hardened_malloc.git
synced 2025-11-04 01:36:33 +01:00
9ca3279507
C23 declared calling realloc(3) with a non-NULL pointer and zero size Undefined behavior. Check that hardened_malloc handles that case sanely by free'ing the old pointer and returning a special pointer, like `malloc(3)` called with size zero.
79 lines
2.1 KiB
Makefile
79 lines
2.1 KiB
Makefile
CONFIG_SLAB_CANARY := true
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CONFIG_EXTENDED_SIZE_CLASSES := true
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ifneq ($(VARIANT),)
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$(error testing non-default variants not yet supported)
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endif
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ifeq (,$(filter $(CONFIG_SLAB_CANARY),true false))
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$(error CONFIG_SLAB_CANARY must be true or false)
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endif
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dir=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
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CPPFLAGS := \
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-D_GNU_SOURCE \
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-DSLAB_CANARY=$(CONFIG_SLAB_CANARY) \
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-DCONFIG_EXTENDED_SIZE_CLASSES=$(CONFIG_EXTENDED_SIZE_CLASSES)
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SHARED_FLAGS := -O3
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CFLAGS := -std=c17 $(SHARED_FLAGS) -Wmissing-prototypes
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CXXFLAGS := -std=c++17 -fsized-deallocation $(SHARED_FLAGS)
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LDFLAGS := -Wl,-L$(dir)../out,-R,$(dir)../out
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LDLIBS := -lpthread -lhardened_malloc
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EXECUTABLES := \
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offset \
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mallinfo \
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mallinfo2 \
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malloc_info \
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large_array_growth \
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double_free_large \
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double_free_large_delayed \
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double_free_small \
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double_free_small_delayed \
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unaligned_free_large \
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unaligned_free_small \
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read_after_free_large \
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read_after_free_small \
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write_after_free_large \
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write_after_free_large_reuse \
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write_after_free_small \
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write_after_free_small_reuse \
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read_zero_size \
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write_zero_size \
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invalid_free_protected \
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invalid_free_unprotected \
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invalid_free_small_region \
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invalid_free_small_region_far \
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uninitialized_read_small \
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uninitialized_read_large \
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uninitialized_free \
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uninitialized_realloc \
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uninitialized_malloc_usable_size \
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overflow_large_1_byte \
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overflow_large_8_byte \
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overflow_small_1_byte \
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overflow_small_8_byte \
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string_overflow \
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delete_type_size_mismatch \
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unaligned_malloc_usable_size_small \
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invalid_malloc_usable_size_small \
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invalid_malloc_usable_size_small_quarantine \
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malloc_object_size \
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malloc_object_size_offset \
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invalid_malloc_object_size_small \
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invalid_malloc_object_size_small_quarantine \
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impossibly_large_malloc \
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realloc_init \
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realloc_c23_undefined_behaviour \
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realloc_c23_undefined_behaviour_double_free \
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realloc_c23_undefined_behaviour_use_after_free
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all: $(EXECUTABLES)
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clean:
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rm -f $(EXECUTABLES)
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rm -fr ./__pycache__
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