Hi Guenter, On Tue, 13 May 2014 10:17:49 -0700 Guenter Roeck <li...@roeck-us.net> wrote: > > On Tue, May 13, 2014 at 07:16:41PM +1000, Benjamin Herrenschmidt wrote: > > On Mon, 2014-05-12 at 17:28 -0700, Guenter Roeck wrote: > > > > > After applying this patch, I get > > > > > > arch/powerpc/kernel/exceptions-64s.S:269: Error: operand out of range > > > (0x000000000000814c is not between 0xffffffffffff8000 and > > > 0x0000000000007ffc) > > > arch/powerpc/kernel/exceptions-64s.S:729: Error: operand out of range > > > (0x000000000000814c is not between 0xffffffffffff8000 and > > > 0x0000000000007ffc) > > > > > > with powerpc:defconfig, powerpc:allmodconfig, powerpc:cell_defconfig, and > > > powerpc:maple_defconfig. > > > > > > This is on top of v3.15-rc5. Any idea what is going on ? > > > > > > Compiler is powerpc64-poky-linux-gcc (GCC) 4.7.2 (from poky 1.4.0-1). > > > > Interesting... works with all my test configs using 4.7.3... > > > > I don't have my tree at hand right now, I'll check what that means > > tomorrow see if I can find a workaround. > > > It works for me with gcc 4.8.2 (build from yocto 1.6.0). > > Is asking people to use gcc 4.7.3 or later acceptable ?
OK, this appears to be an assembler bug.
$ cat test.s
.text
x:
.pushsection b, "a"
beq y
.popsection
.=0x80000
y:
$ /opt/cross/gcc-4.6.3-nolibc/powerpc64-linux/bin/powerpc64-linux-as --version
GNU assembler (GNU Binutils) 2.22
This assembler was configured for a target of `powerpc64-linux'.
$ /opt/cross/gcc-4.6.3-nolibc/powerpc64-linux/bin/powerpc64-linux-as -o test.o
test.s
test.s: Assembler messages:
test.s:4: Error: operand out of range (0x0000000000080000 is not between
0xffffffffffff8000 and 0x0000000000007ffc)
$ /opt/cross/gcc-4.8.1-nolibc/powerpc64-linux/bin/powerpc64-linux-as --version
GNU assembler (GNU Binutils) 2.23.52.20130512
This assembler was configured for a target of `powerpc64-linux'.
$ /opt/cross/gcc-4.8.1-nolibc/powerpc64-linux/bin/powerpc64-linux-as -o test.o
test.s
(no error)
Alan, can you shed light on when it was fixed?
--
Cheers,
Stephen Rothwell s...@canb.auug.org.au
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