Hi, the attached one-liner diff fixes the symbol issue and enables me to run my Virtualbox VMs again. (However, I didn't check how the addition of this flag to CXXFLAGS affects the rest of R0 compilation - on the other hand, it's already there in CFLAGS.)
The missing 'memset' symbol is caused by a compiler-generated call to memset(), not by an actual call in the source code - my guess is that g++ emits it to optimize this loop that was added for 6.1.34: ===== --- ./virtualbox-6.1.32-dfsg/src/VBox/Devices/Network/DevE1000.cpp 2022-01-13 19:55:54.000000000 +0100 +++ ./virtualbox-6.1.34-dfsg/src/VBox/Devices/Network/DevE1000.cpp 2022-03-23 00:43:01.000000000 +0100 @@ -5462,6 +5543,17 @@ AssertMsgFailed(("Impossible descriptor type!")); continue; } + if (fInvalidPacket) + { + for (int index = pThis->iTxDCurrent; index < i; ++index) + pThis->afTxDValid[index] = false; /* Make sure all descriptors for this packet are skipped by processing */ + LogFlow(("%s e1kLocateTxPacket: marked %d descriptors as invalid\n", pThis->szPrf, i - pThis->iTxDCurrent)); + LogFlow(("%s e1kLocateTxPacket: RET true cbTxAlloc=%d cbPacket=%d%s%s\n", + pThis->szPrf, pThis->cbTxAlloc, cbPacket, + pThis->fGSO ? " GSO" : "", fTSE ? " TSE" : "")); + pTxdc->nextPacket = i; + return true; + } if (pDesc->legacy.cmd.fEOP) { /* ===== Feel free to forward upstream. Best regards Jan
--- a/Config.kmk 2022-04-21 01:17:47.000000000 +0200 +++ b/Config.kmk 2022-04-21 02:00:52.203003760 +0200 @@ -4509,7 +4509,7 @@ $(VBOX_GCC_fno-stack-protector) -fno-common $(VBOX_GCC_fvisibility-inlines-hidden) $(VBOX_GCC_fvisibility-hidden) \ -fno-rtti $(VBOX_GCC_IPRT_FMT_CHECK) TEMPLATE_VBoxR0_CFLAGS.amd64 = -m64 -mno-red-zone -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fasynchronous-unwind-tables -ffreestanding -TEMPLATE_VBoxR0_CXXFLAGS.amd64 = -m64 -mno-red-zone -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fasynchronous-unwind-tables +TEMPLATE_VBoxR0_CXXFLAGS.amd64 = -m64 -mno-red-zone -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -fasynchronous-unwind-tables -ffreestanding TEMPLATE_VBoxR0_CXXFLAGS.freebsd = -ffreestanding if $(VBOX_GCC_VERSION_CC) < 30400 TEMPLATE_VBoxR0_DEFS += RT_WITHOUT_PRAGMA_ONCE