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PR toolchain/55837 

Fix logic error in copyFloatVectorRegister() for arm; copy s0-s31 or
d0-d31, not both.
This commit is contained in:
rin 2021-05-31 11:57:28 +00:00
parent 6048a3f308
commit 59bb4ebecd
1 changed files with 11 additions and 10 deletions
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21
sys/lib/libunwind/Registers.hpp
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@ -400,19 +400,20 @@ public:
#endif
memcpy((uint8_t *)(fpreg + dnum) + part * sizeof(fpreg[0]) / 2,
addr, sizeof(fpreg[0]) / 2);
}
if (num <= REGNO_ARM32_D15) {
if ((flags & FLAGS_VFPV2_USED) == 0) {
lazyVFPv2();
flags |= FLAGS_VFPV2_USED;
}
} else {
if ((flags & FLAGS_VFPV3_USED) == 0) {
lazyVFPv3();
flags |= FLAGS_VFPV3_USED;
if (num <= REGNO_ARM32_D15) {
if ((flags & FLAGS_VFPV2_USED) == 0) {
lazyVFPv2();
flags |= FLAGS_VFPV2_USED;
}
} else {
if ((flags & FLAGS_VFPV3_USED) == 0) {
lazyVFPv3();
flags |= FLAGS_VFPV3_USED;
}
}
memcpy(fpreg + (num - REGNO_ARM32_D0), addr, sizeof(fpreg[0]));
}
memcpy(fpreg + (num - REGNO_ARM32_D0), addr, sizeof(fpreg[0]));
}
__dso_hidden void lazyVFPv2();