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35af6c33d8
Turns out it's not always possible to figure out whether an asm() statement argument points to a valid memory region. One example would be per-CPU objects in the Linux kernel, for which the addresses are calculated using the FS register and a small offset in the .data..percpu section. To avoid pulling all sorts of checks into the instrumentation, we replace actual checking/unpoisoning code with calls to msan_instrument_asm_load(ptr, size) and msan_instrument_asm_store(ptr, size) functions in the runtime. This patch doesn't implement the runtime hooks in compiler-rt, as there's been no demand in assembly instrumentation for userspace apps so far. llvm-svn: 345702 |
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| .. | ||
| AArch64 | ||
| Mips | ||
| PowerPC | ||
| X86 | ||
| alloca.ll | ||
| array_types.ll | ||
| atomics.ll | ||
| byval-alignment.ll | ||
| check_access_address.ll | ||
| check-constant-shadow.ll | ||
| csr.ll | ||
| global_ctors_2to3.ll | ||
| instrumentation-with-call-threshold.ll | ||
| manual-shadow.ll | ||
| masked-store-load.ll | ||
| missing_origin.ll | ||
| msan_asm_conservative.ll | ||
| msan_basic.ll | ||
| msan_kernel_basic.ll | ||
| msan_x86_bts_asm.ll | ||
| msan_x86intrinsics.ll | ||
| mul_by_constant.ll | ||
| nosanitize.ll | ||
| origin-alignment.ll | ||
| origin-array.ll | ||
| pr32842.ll | ||
| return_from_main.ll | ||
| store-long-origin.ll | ||
| store-origin.ll | ||
| str-nobuiltin.ll | ||
| unreachable.ll | ||
| unsized_type.ll | ||
| vector_arith.ll | ||
| vector_cmp.ll | ||
| vector_cvt.ll | ||
| vector_pack.ll | ||
| vector_shift.ll | ||
| with-call-type-size.ll | ||