https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55916
--- Comment #13 from Jouko Orava ---
(In reply to Joost VandeVondele from comment #12)
> I'm wondering if you had a working patch at some point.
Not a comprehensive one, no. I recall modifying libgfortran/runtime/memory.c
was not sufficient.
I
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
--- Comment #14 from Jouko Orava ---
(In reply to Steve Kargl from comment #13)
> I've tested your patch on i386-*-freebsd. It works.
Excellent, thank you.
> Do you have commit privilege for the source tree?
> The patch with a testcase is ok.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
--- Comment #12 from Jouko Orava ---
I suspect the bug occurs because libgfortran uses the weak symbol version of
quadmath_snprintf(). Unfortunately, I don't have the resources to verify this
in the near future.
If you could recompile gcc/gfortr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
--- Comment #11 from Jouko Orava ---
Created attachment 36931
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36931&action=edit
Untested patch to fix the bug.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61261
Jouko Orava changed:
What|Removed |Added
CC||jouko.orava at iki dot fi
--- Comment #6
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55916
--- Comment #11 from Jouko Orava ---
Just in case there are users who encounter this bug report,
here is the single-file workaround. Save the following as
nosegfault.c, and follow the instructions in the comments.
It can be compiled into a shared
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55916
--- Comment #10 from Jouko Orava ---
(In reply to Dominique d'Humieres from comment #9)
> I can do the testing on darwin (intel d10 and d13, ppc d9).
That would be very much appreciated.
I've put a tarball and some background info on my web page
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55916
Jouko Orava changed:
What|Removed |Added
CC||jouko.orava at iki dot fi
--- Comment #8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60088
--- Comment #21 from Jouko Orava ---
This bug is a duplicate of #55916.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60088
--- Comment #20 from Jouko Orava ---
Apologies, Jacob; my advice was faulty.
Could you please retest using the following?
Compile the binary using
gfortran -march=native -ggdb newtest.f90 -o newtest
then start gdb,
gdb newtest
and run unt
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60088
--- Comment #18 from Jouko Orava ---
Addendum: the unaligned access causing the segfault seems to occur
because __libc_malloc returns an address aligned to 8 bytes, but
it is used as if it was aligned to 16 bytes. The disassembly is
80493a0: e8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60088
--- Comment #17 from Jouko Orava ---
I asked and received the details from Jacob Abel off-list, to find out if
this bug #60088 is related to bug #50201. They do not seem to be.
The instruction causing the segfault in this bug #60088 is
66 0f
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60088
Jouko Orava changed:
What|Removed |Added
CC||jouko.orava at iki dot fi
--- Comment #15
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
--- Comment #9 from Jouko Orava ---
It turns out that while fdp2.f90,
PROGRAM fdp2
IMPLICIT none
INTEGER, PARAMETER :: b128 = SELECTED_REAL_KIND(33, 1000)
REAL(KIND=b128) :: x(4)
x = 3.4_b128
PRINT *, KI
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
--- Comment #8 from Jouko Orava ---
I confirm, still occurs with 4.7.3 and 4.8.1.
For simplicity, I obtained the 4.7 and 4.8 versions from Ubuntu toolchain test
builds' PPA, https://launchpad.net/~ubuntu-toolchain-r/.
GNU Fortran 4.7.3 (Ubuntu/L
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50201
Jouko Orava changed:
What|Removed |Added
CC||jouko.orava at iki dot fi
--- Comment #6
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