Fails to build sys/i386/boot2 with gcc 4.9
Craig Rodrigues
rodrigc at FreeBSD.org
Fri Apr 17 20:13:44 UTC 2015
On Sat, Mar 28, 2015 at 4:05 PM, Craig Rodrigues <rodrigc at freebsd.org>
wrote:
> Hi,
>
> To work around the problems build rescue, this time I used a build host
> running FreeBSD-CURRENT at svn revision r280353
>
> I took this patch for libc++ and applied it to my tree:
>
> http://reviews.llvm.org/D8461
>
> I used this script to build with gcc 4.9:
>
>
> https://github.com/freebsd/freebsd-ci/blob/master/scripts/build/cross-build.sh
>
> Buildling sys/i386/boot2 failed:
>
> ===> sys/boot/i386/boot2 (all)
> objcopy -S -O binary boot1.out boot1
> dd if=/dev/zero of=boot2.ldr bs=512 count=1
> 1+0 records in
> 1+0 records out
> 512 bytes transferred in 0.000034 secs (14989607 bytes/sec)
> /usr/local/bin/x86_64-portbld-freebsd11.0-gcc -isystem
> /usr/obj/opt2/branches/head/tmp/usr/include
> -L/usr/obj/opt2/branches/head/tmp/usr/lib
> --sysroot=/usr/obj/opt2/branches/head/tmp -B/usr/local/x86_64-freebsd/bin/
> -fomit-frame-pointer -mrtd -mregparm=3 -DUSE_XREAD -DUFS1_AND_UFS2
> -DFLAGS=0x80 -DSIOPRT=0x3f8 -DSIOFMT=0x3 -DSIOSPD=9600
> -I/opt2/branches/head/sys/boot/i386/boot2/../../common
> -I/opt2/branches/head/sys/boot/i386/boot2/../btx/lib -I. -Wall
> -Waggregate-return -Wbad-function-cast -Wcast-align -Wmissing-declarations
> -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wshadow
> -Wstrict-prototypes -Wwrite-strings -Winline -march=i386 -ffreestanding
> -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float -m32
> -std=gnu99 -Os -fno-guess-branch-probability -fno-unit-at-a-time
> --param max-inline-insns-single=100 -mpreferred-stack-boundary=2 -S -o
> boot2.s.tmp /opt2/branches/head/sys/boot/i386/boot2/boot2.c
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c: In function 'parse':
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:484:6: warning: suggest
> parentheses around assignment used as truth value [-Wparentheses]
> if (k = ep - arg) {
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c: In function 'load':
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:334:9: warning: called
> from here [-Winline]
> if (xfsread(ino, &hdr, sizeof(hdr)))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:341:6: warning: called
> from here [-Winline]
> if (xfsread(ino, p, hdr.ex.a_text))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:344:6: warning: called
> from here [-Winline]
> if (xfsread(ino, p, hdr.ex.a_data))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:349:10: warning: called
> from here [-Winline]
> if (xfsread(ino, ep + j, sizeof(ep[0])))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:357:10: warning: called
> from here [-Winline]
> if (xfsread(ino, p, ep[i].p_filesz))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:365:10: warning: called
> from here [-Winline]
> if (xfsread(ino, &es, sizeof(es)))
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:187:1: warning: inlining
> failed in call to 'xfsread': call is unlikely and code size would grow
> [-Winline]
> xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
> ^
> /opt2/branches/head/sys/boot/i386/boot2/boot2.c:371:7: warning: called
> from here [-Winline]
> if (xfsread(ino, p, es[i].sh_size))
> ^
> sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
> rm -f boot2.s.tmp
> /usr/local/bin/x86_64-portbld-freebsd11.0-gcc -isystem
> /usr/obj/opt2/branches/head/tmp/usr/include
> -L/usr/obj/opt2/branches/head/tmp/usr/lib
> --sysroot=/usr/obj/opt2/branches/head/tmp -B/usr/local/x86_64-freebsd/bin/
> -m32 -c boot2.s
> /usr/local/bin/x86_64-portbld-freebsd11.0-gcc -isystem
> /usr/obj/opt2/branches/head/tmp/usr/include
> -L/usr/obj/opt2/branches/head/tmp/usr/lib
> --sysroot=/usr/obj/opt2/branches/head/tmp -B/usr/local/x86_64-freebsd/bin/
> -fomit-frame-pointer -mrtd -mregparm=3 -DUSE_XREAD -DUFS1_AND_UFS2
> -DFLAGS=0x80 -DSIOPRT=0x3f8 -DSIOFMT=0x3 -DSIOSPD=9600
> -I/opt2/branches/head/sys/boot/i386/boot2/../../common
> -I/opt2/branches/head/sys/boot/i386/boot2/../btx/lib -I. -Wall
> -Waggregate-return -Wbad-function-cast -Wcast-align -Wmissing-declarations
> -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wshadow
> -Wstrict-prototypes -Wwrite-strings -Winline -march=i386 -ffreestanding
> -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float -m32
> -std=gnu99 -Os -fno-guess-branch-probability -fno-unit-at-a-time
> --param max-inline-insns-single=100 -mpreferred-stack-boundary=2 -m32 -c
> /opt2/branches/head/sys/boot/i386/boot2/sio.S -o sio.o
> /usr/local/x86_64-freebsd/bin/ld -static -N --gc-sections -m elf_i386_fbsd
> -Ttext 0x2000 -o boot2.out
> /usr/obj/opt2/branches/head/sys/boot/i386/boot2/../btx/lib/crt0.o boot2.o
> sio.o
> objcopy -S -O binary boot2.out boot2.bin
> btxld -v -E 0x2000 -f bin -b
> /usr/obj/opt2/branches/head/sys/boot/i386/boot2/../btx/btx/btx -l
> boot2.ldr -o boot2.ld -P 1 boot2.bin
> kernel: ver=1.02 size=690 load=9000 entry=9010 map=16M pgctl=1:1
> client: fmt=bin size=195f text=0 data=0 bss=0 entry=0
> output: fmt=bin size=21ef text=200 data=1fef org=0 entry=0
> -1007 bytes available
> *** Error code 1
>
> Stop.
> make[6]: stopped in /opt2/branches/head/sys/boot/i386/boot2
> *** Error code 1
>
> Stop.
> make[5]: stopped in /opt2/branches/head/sys/boot/i386
> *** Error code 1
>
> Stop.
> make[4]: stopped in /opt2/branches/head/sys/boot
> *** Error code 1
>
> Stop.
> make[3]: stopped in /opt2/branches/head/sys
> *** Error code 1
>
> Stop.
> make[2]: stopped in /opt2/branches/head
> *** Error code 1
>
> Stop.
> make[1]: stopped in /opt2/branches/head
> *** Error code 1
>
> Stop.
> make: stopped in /opt2/branches/head
>
> Script done on Sat Mar 28 13:44:24 2015
>
>
In sys/boot/i386/boot2/Makefile, I saw this section:
# Decide level of UFS support.
BOOT2_UFS?= UFS1_AND_UFS2
#BOOT2_UFS?= UFS2_ONLY
#BOOT2_UFS?= UFS1_ONLY
I tried setting just UFS2_ONLY, but I still couldn't build boot2 with gcc
4.9 due to taking too much space.
I then tried setting just UFS1_ONLY, but even then I still couldn't build
boot2 with gcc 4.9.
So I'm really stuck here.
I'm curious how the assembly of boot2 is different between gcc 4.2.1 and
gcc 4.9. I didn't try compiling with
gcc 4.2.1 yet.
--
Craig
> --
> Craig
>
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