It looks vax builds fail in many sources that use __asm() statements
after switching vax to using new binutils 2.39.
Daily buildlog says:
https://releng.netbsd.org/builds/HEAD/202301261240Z/vax.build.failed
dependall ===> lib/../external/gpl3/gcc/lib/libgcc/libgcov
/home/source/ab/HEAD/src/external/gpl3/gcc/dist/libgcc/libgcc2.c: Assembler messages:
/home/source/ab/HEAD/src/external/gpl3/gcc/dist/libgcc/libgcc2.c:553: Error: unknown pseudo-op: `.'
In src/sys/arch/vax/boot/boot (to commit my local fix) I got:
---
# compile sa/loadfile.o
/s/cvs/src/obj.vax/tooldir.NetBSD-9.3-i386/bin/vax--netbsdelf-gcc -O2 \
-ffreestanding -fno-pic -fno-unwind-tables -std=gnu99 -Wall \
-Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith \
-Wno-sign-compare -Wsystem-headers -Wno-traditional \
-Wa,--fatal-warnings -Werror \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libsa \
--sysroot=/s/cvs/src/obj.vax/destdir.vax -DSUPPORT_BOOTPARAMS \
-DSUPPORT_BOOTP -DSUPPORT_DHCP -D_STANDALONE -DNO_MID_CHECK \
-DLIBSA_CREAD_NOCRC -I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libkern/../../../common/lib/libc/quad \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libkern/../../../common/lib/libc/string \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libkern/../../../common/lib/libc/arch/vax/string \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libkern/../../../common/lib/libc/arch/vax/atomic \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libkern/../../../common/lib/libc/hash/sha3 \
-I../../. -I/s/cvs/src/sys/arch/vax/boot/boot/../../../../ \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../ \
-I/s/cvs/src/sys/arch/vax/boot/boot/../common -I/s/cvs/src/sys/arch/vax/boot/boot/../../include \
-DRELOC=0x7d0000 -D_STANDALONE \
-I/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libsa/../../../common/dist/zlib \
-DCOMPAT_UFS -D__INTERNAL_LIBSA_CREAD -Wno-pointer-sign -c \
/s/cvs/src/sys/arch/vax/boot/boot/../../../../lib/libsa/loadfile.c \
-o loadfile.o
loadfile.s: Assembler messages:
loadfile.s:99: Warning: missing closing `"'
loadfile.s:99: Fatal error: Ignoring statement due to "Unknown operator"
*** Failed target: loadfile.o
---
The asm file around line 99 in loadfile.S per -save_temps:
---
87 .L8:
88 pushab .LC2
89 calls 1,ドル(%r6)
90 movzbl 79,ドルerrno
91 movzbl 79,ドル%r0
92 ret
93 .L34:
94 #APP
95 # 47 "../.././machine/byte_swap.h" 1
96 rotl $-8, %r0, %r2
97 insv %r2, 16,ドル 8,ドル %r2
98 rotl 8,ドル %r0, %r1
99 movb %r1, %r2
100 # 0 "" 2
101 #NO_APP
102 cmpw %r2,263ドル
103 jeql .L12
104 #APP
105 # 47 "../.././machine/byte_swap.h" 1
106 rotl $-8, %r0, %r2
107 insv %r2, 16,ドル 8,ドル %r2
108 rotl 8,ドル %r0, %r1
109 movb %r1, %r2
110 # 0 "" 2
111 #NO_APP
---
So it's come from inline asm in byte_swap.h:
---
static __inline uint32_t __attribute__((__unused__))
__byte_swap_u32_variable(uint32_t x)
{
uint32_t y;
__asm volatile(
"rotl $-8, %1, %0 \n"
"insv %0, 16,ドル 8,ドル %0 \n"
"rotl 8,ドル %1, %%r1 \n"
"movb %%r1, %0"
: "=&r" (y)
: "r" (x)
: "r1", "cc");
return (y);
}
---
If I changed the following line in the inline function
"movb %%r1, %0"
to
"movb %%r1, %0 "
gas no longer complained it, so it smells corrupted buffer.
I have checked several changes in binutils/dist/gas/config/tc-vax.c
but I cannot find an obvious one.
Any ideas?
---
Izumi Tsutsui