Date: Mon, 30 Apr 2018 11:51:06 +0200 From: Andre Albsmeier <Andre.Albsmeier@siemens.com> To: Dimitry Andric <dim@FreeBSD.org> Cc: Andre Albsmeier <Andre.Albsmeier@siemens.com>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: gptboot broken when compiled with clang 6 and WITHOUT_LOADER_GELI -- clang 5 is OK Message-ID: <20180430095106.GA16041@bali> In-Reply-To: <1FDCF15C-E9FD-4746-9C89-F669EF4BA7C5@FreeBSD.org> References: <20180425165840.GA1330@bali> <1FDCF15C-E9FD-4746-9C89-F669EF4BA7C5@FreeBSD.org>
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On Thu, 26-Apr-2018 at 11:55:19 +0200, Dimitry Andric wrote: > On 25 Apr 2018, at 18:58, Andre Albsmeier <Andre.Albsmeier@siemens.com> w= rote: > >=20 > > I have set up a new system disk for an i386 11.2-PRERELEASE box. I did = the > > usual > >=20 > > gpart create -s gpt $disk > > gpart add -t freebsd-boot -s 984 $disk > > gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 $disk > > ... > >=20 > > thing, just to notice that the box wouldn't boot. It seems to hang where > > stage 2 should be run -- when the '\' should start spinning the screen > > turns white and the box hangs (tested on two machines, an Asus P5W and a > > Supermicro A2SAV). > >=20 > > So I replaced gptboot on the new disk by the one from an older machine > > and everything was fine. I wanted to find out what is actually causing > > the issue and recompiled /usr/src/stand after updating the old sources > > in several steps. > >=20 > > Eventually it turned out that it depends on the compiler. When compiling > > the latest /usr/src/stand with clang 5.0.1 the resulting gptboot works. > > When using 6.0.0 it doesn't. To be exact, it's gptboot.o which is causi= ng > > the problems. When using a gptboot.o from a clang 5 system it is OK, wh= en > > using a gptboot.o from a clang 6 system it fails. > >=20 > > To add more confusion: I usually have WITHOUT_LOADER_GELI in my make.co= nf. > > When removing this, the resulting gptboot works even when compiled with > > clang 6... > >=20 > > I can reproduce this in case s.o. wants me to do some tests... >=20 > I can't reproduce it on my end, unfortunately. I downloaded the latest > FreeBSD-11.2-PRERELEASE-i386-20180420-r332802 snapshot, installed it to > a GPT partitioned disk, and it boots just fine. It is clearly reproducible here with r333082 and with /etc/make.conf having only WITHOUT_LOADER_GELI. The resulting gptboot is: -rw-rw---- 1 andre wheel 20859 30 Apr 11:46 /usr/obj/src/src-11/stand/i3= 86/gptboot/gptboot Here are the logs, maybe something is hidden here: machine -> /src/src-11/sys/i386/include x86 -> /src/src-11/sys/x86/include gzip -cn /src/src-11/stand/i386/gptboot/gptboot.8 > gptboot.8.gz cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -no-integrated-as -c /= src/src-11/stand/i386/gptboot/gptldr.S -o gptldr.o ld -static -N --gc-sections -e start -Ttext 0x7c00 -o gptldr.out gptldr.o objcopy -S -O binary gptldr.out gptldr.bin cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -c /src/src-11/stand/i3= 86/gptboot/gptboot.c -o gptboot.o cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -c /src/src-11/stand/= i386/boot2/sio.S -o sio.o cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -c /src/src-11/stand/li= bsa/crc32.c -o crc32.o cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -c /src/src-11/stand/i3= 86/common/drv.c -o drv.o cc -O2 -pipe -I/src/src-11/stand/i386/btx/lib -nostdinc -I/usr/obj/src/sr= c-11/stand/libsa -I/src/src-11/stand/libsa -D_STANDALONE -I/src/src-11/sys = -Ddouble=3Djagged-little-pill -Dfloat=3Dfloaty-mcfloatface -DLOADER_DISK_SU= PPORT -ffreestanding -mno-mmx -mno-sse -mno-avx -msoft-float -march=3Di386 = -I. -DBOOTPROG=3D\"gptboot\" -O1 -DGPT -DUFS1_AND_UFS2 -DSIOPRT=3D0x3f8= -DSIOFMT=3D0x3 -DSIOSPD=3D9600 -I/src/src-11/stand/common -I/src/src-1= 1/stand/i386/common -I/src/src-11/stand/i386/boot2 -Wall -Waggregate-retu= rn -Wbad-function-cast -Wno-cast-align -Wmissing-declarations -Wmissing-pr= ototypes -Wnested-externs -Wpointer-arith -Wshadow -Wstrict-prototypes -Ww= rite-strings -Winline -Wno-pointer-sign -g -std=3Dgnu99 -Wsystem-headers -= Werror -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-c= onst-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-= equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typede= f -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promo= ted-parameter -Wno-parentheses -Qunused-arguments -c /src/src-11/stand/i3= 86/common/cons.c -o cons.o ld -static -N --gc-sections -Ttext 0x0 -o gptboot.out /usr/obj/src/src-11/s= tand/i386/btx/lib/crt0.o gptboot.o sio.o crc32.o drv.o cons.o /usr/obj/src= /src-11/stand/libsa/libsa.a objcopy -S -O binary gptboot.out gptboot.bin btxld -v -E 0x0 -f bin -b /usr/obj/src/src-11/stand/i386/btx/btx/btx -l gpt= ldr.bin -o gptboot gptboot.bin kernel: ver=3D1.02 size=3D690 load=3D9000 entry=3D9010 map=3D16M pgctl=3D0:0 client: fmt=3Dbin size=3D4a69 text=3D0 data=3D0 bss=3D0 entry=3D0 output: fmt=3Dbin size=3D517b text=3D82 data=3D50f9 org=3D0 entry=3D0
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