Date: Sun, 17 Jul 2011 03:11:44 -0700 From: Doug Barton <dougb@FreeBSD.org> To: FreeBSD Current <freebsd-current@FreeBSD.org> Subject: sys/boot/i386/boot2 build failure with clang Message-ID: <4E22B560.4040401@FreeBSD.org>
next in thread | raw e-mail | index | archive | help
Howdy,
Trying to build r224125 with clang, and got this (using no -j):
===> 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 0.000040 secs (12782641 bytes/sec)
clang -Os -fno-guess-branch-probability -fomit-frame-pointer
-fno-unit-at-a-time -mno-align-long-strings -mrtd -mregparm=3
-DUSE_XREAD -DUFS1_AND_UFS2 -DFLAGS=0x80 -DSIOPRT=0x3f8 -DSIOFMT=0x3
-DSIOSPD=9600 -I/home/svn/head/sys/boot/i386/boot2/../../common
-I/home/svn/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
--param max-inline-insns-single=100 -mllvm -stack-alignment=8 -mllvm
-inline-threshold=3 -mllvm -enable-load-pre=false -ffreestanding
-mpreferred-stack-boundary=2 -mno-mmx -mno-3dnow -mno-sse -mno-sse2
-mno-sse3 -msoft-float -m32 -march=i386 -g -std=gnu99 -S -o
boot2.s.tmp /home/svn/head/sys/boot/i386/boot2/boot2.c
clang: warning: the clang compiler does not support '-fno-unit-at-a-time'
clang: warning: argument unused during compilation:
'-fno-guess-branch-probability'
clang: warning: argument unused during compilation:
'-mno-align-long-strings'
clang: warning: argument unused during compilation: '--param
max-inline-insns-single=100'
clang: warning: argument unused during compilation:
'-mpreferred-stack-boundary=2'
In file included from /home/svn/head/sys/boot/i386/boot2/boot2.c:172:
/home/svn/head/sys/boot/i386/boot2/../../common/ufsread.c:232:17:
warning: cast
from 'char *' to 'struct ufs1_dinode *' increases required
alignment from
1 to 4 [-Wcast-align]
memcpy(&dp1, (struct ufs1_dinode *)blkbuf + n,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/svn/head/sys/boot/i386/boot2/../../common/ufsread.c:235:17:
warning: cast
from 'char *' to 'struct ufs2_dinode *' increases required
alignment from
1 to 4 [-Wcast-align]
memcpy(&dp2, (struct ufs2_dinode *)blkbuf + n,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/svn/head/sys/boot/i386/boot2/boot2.c:224:1: warning: no previous
prototype
for function 'main' [-Wmissing-prototypes]
main(void)
^
/home/svn/head/sys/boot/i386/boot2/boot2.c:352:4: warning: cast from
'caddr_t'
(aka 'char *') to 'Elf32_Word *' (aka 'unsigned int *') increases
required
alignment from 1 to 4 [-Wcast-align]
*(Elf32_Word *)p = es[i].sh_size;
^~~~~~~~~~~~~~~
/home/svn/head/sys/boot/i386/boot2/boot2.c:611:8: warning: cast from
'caddr_t'
(aka 'char *') to 'uint32_t *' (aka 'unsigned int *') increases
required
alignment from 1 to 4 [-Wcast-align]
t1 = *(uint32_t *)PTOV(0x46c);
^~~~~~~~~~~~~~~~~~~~~~~
5 warnings generated.
sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
rm -f boot2.s.tmp
as --32 -o boot2.o boot2.s
boot2.s: Assembler messages:
boot2.s:4073: Error: unknown pseudo-op: `.cfi_sections'
*** Error code 1
--
Nothin' ever doesn't change, but nothin' changes much.
-- OK Go
Breadth of IT experience, and depth of knowledge in the DNS.
Yours for the right price. :) http://SupersetSolutions.com/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4E22B560.4040401>