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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2015-09-16 15:12:25 +0000 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2015-09-16 15:12:25 +0000 |
commit | d0966a39a94f91835ab3a311d5499c47a647a2b9 (patch) | |
tree | 993d7f5d08ff5b112fa7e35c814a747391635924 /lib/sanitizer_common/sanitizer_platform_limits_posix.h | |
parent | 92c35fedf322f1b799004aa13b7835f14193d790 (diff) |
[MSan] Enable MSAN for aarch64
This patch enabled msan for aarch64 with 39-bit VMA and 42-bit VMA.
As defined by lib/msan/msan.h the memory layout used is for 39-bit is:
00 0000 0000 - 40 0000 0000: invalid
40 0000 0000 - 43 0000 0000: shadow
43 0000 0000 - 46 0000 0000: origin
46 0000 0000 - 55 0000 0000: invalid
55 0000 0000 - 56 0000 0000: app (low)
56 0000 0000 - 70 0000 0000: invalid
70 0000 0000 - 80 0000 0000: app (high)
And for 42-bit VMA:
000 0000 0000 - 100 0000 0000: invalid
100 0000 0000 - 11b 0000 0000: shadow
11b 0000 0000 - 120 0000 0000: invalid
120 0000 0000 - 13b 0000 0000: origin
13b 0000 0000 - 2aa 0000 0000: invalid
2aa 0000 0000 - 2ab 0000 0000: app (low)
2ab 0000 0000 - 3f0 0000 0000: invalid
3f0 0000 0000 - 400 0000 0000: app (high)
Most of tests are passing with exception of:
* Linux/mallinfo.cc
* chained_origin_limits.cc
* dlerror.cc
* param_tls_limit.cc
* signal_stress_test.cc
* nonnull-arg.cpp
The 'Linux/mallinfo.cc' is due the fact AArch64 returns the sret in 'x8'
instead of default first argument 'x1'. So a function prototype that
aims to mimic (by using first argument as the return of function) won't
work. For GCC one can make a register alias (register var asm ("r8")), but
for clang it detects is an unused variable and generate wrong code.
The 'chained_origin_limits' is probably due a wrong code generation,
since it fails only when origin memory is used
(-fsanitize-memory-track-origins=2) and only in the returned code
(return buf[50]).
The 'signal_streess_test' and 'nonnull-arg' are due currently missing variadic
argument handling in memory sanitizer code instrumentation on LLVM side.
Both 'dlerror' and 'param_tls_test' are unknown failures that require
further investigation.
All the failures are XFAIL for aarch64 for now.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@247809 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_platform_limits_posix.h')
-rw-r--r-- | lib/sanitizer_common/sanitizer_platform_limits_posix.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h index babac1e67..a2d01e2f6 100644 --- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h +++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h @@ -724,7 +724,7 @@ namespace __sanitizer { #if SANITIZER_LINUX && !SANITIZER_ANDROID && \ (defined(__i386) || defined(__x86_64) || defined(__mips64) || \ - defined(__powerpc64__)) + defined(__powerpc64__) || defined(__aarch64__)) extern unsigned struct_user_regs_struct_sz; extern unsigned struct_user_fpregs_struct_sz; extern unsigned struct_user_fpxregs_struct_sz; |