1fc5ccfe76
Introduce an M_SET_ALLOCATION_LIMIT enumerator for android_mallopt(), which can be used to set an upper bound on the total size of all allocations made using the memory allocation APIs. This is useful for programs such as audioextractor and mediaserver which need to set such a limit as a security mitigation. Currently these programs are using setrlimit(RLIMIT_AS) which isn't exactly what these programs want to control. RLIMIT_AS is also problematic under sanitizers which allocate large amounts of address space as shadow memory, and is especially problematic under shadow call stack, which requires 16MB of address space per thread. Add new unit tests for bionic. Add new unit tests for malloc debug that verify that when the limit is enabled, malloc debug still functions for nearly every allocation function. Bug: 118642754 Test: Ran bionic-unit-tests/bionic-unit-tests-static. Test: Ran malloc debug tests and perfetto integration tests. Change-Id: I735403c4d2c87f00fb2cdef81d00af0af446b2bb |
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| .. | ||
| backtrace_fake.cpp | ||
| backtrace_fake.h | ||
| libc_fake.cpp | ||
| log_fake.cpp | ||
| log_fake.h | ||
| malloc_debug_config_tests.cpp | ||
| malloc_debug_system_tests.cpp | ||
| malloc_debug_unit_tests.cpp | ||