diff options
Diffstat (limited to 'results/classifier/semantic-bugs/instruction/1790')
| -rw-r--r-- | results/classifier/semantic-bugs/instruction/1790 | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/results/classifier/semantic-bugs/instruction/1790 b/results/classifier/semantic-bugs/instruction/1790 deleted file mode 100644 index 2a0a409b..00000000 --- a/results/classifier/semantic-bugs/instruction/1790 +++ /dev/null @@ -1,42 +0,0 @@ -instruction: 0.969 -graphic: 0.821 -boot: 0.809 -semantic: 0.738 -device: 0.730 -mistranslation: 0.585 -assembly: 0.543 -network: 0.505 -vnc: 0.500 -other: 0.437 -socket: 0.425 -KVM: 0.068 - -[AARCH64] STGP instruction is not writing the value of the second register to memory -Description of problem: -My application is built with Clang 16 and the option -fsanitize=memtag-stack. -It means the the MTE protection is activated for the stack. -The local variables are tagged and the compiler is often using the STGP instruction "Store Allocation Tag and Pair of registers" in order to transfer the value of two 64-bit registers to memory. -The following instruction was not working as expected: - 18004: 69000895 stgp x21, x2, [x4] -The value of the second register x2 is not transferred to the memory. -Only x21 is written. - -I think that the issue is in trans_STGP(). -We don't call finalize_memop_pair() like we do for in the general trans_STP(). - -``` -diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c -index 7d0c8f79a7..f599f3e136 100644 ---- a/target/arm/tcg/translate-a64.c -+++ b/target/arm/tcg/translate-a64.c -@@ -3034,6 +3034,8 @@ static bool trans_STGP(DisasContext *s, arg_ldstpair *a) - - tcg_rt = cpu_reg(s, a->rt); - tcg_rt2 = cpu_reg(s, a->rt2); -+ mop = a->sz + 1; -+ mop = finalize_memop_pair(s, mop); - - assert(a->sz == 3); -``` - -With this fix, my OS (Kinibi) is now able to boot. |