On Fri, Apr 13, 2012 at 4:04 AM, Richard Guenther
richard.guent...@gmail.com wrote:
Heh - that's what I do for years, too ;) I suppose sth crashes on the server
side when you save the page, so the communication is broken mid-way.
I haven't looked at this in ages, but for GDB we had a problem
On Mon, Mar 19, 2012 at 12:12 PM, Andrew Stubbs a...@codesourcery.com wrote:
On 16/03/12 13:29, EXTERNAL Waechtler Peter (Fa. TCP, CM-AI/PJ-CF31) wrote:
The CodeSourcery toolchain contains a fix like the following,
please consider for adding it.
Here's the full original patch with
Sorry for being late to the party.
On Wed, Feb 15, 2012 at 9:55 AM, Ian Lance Taylor i...@google.com wrote:
Ouch, I did not know that the EABI left this open. That seems like a
bug, because it prevents code from being interoperable. This is
precisely the kind of thing an ABI should address.
On Mon, Aug 29, 2011 at 11:18 AM, Ken Werner ken.wer...@linaro.org wrote:
On 08/25/2011 02:26 PM, Andrew Haley wrote:
Throwing an exception through a segfault handler doesn't always work
on ARM: the attached example fails on current gcc trunk.
panda-9:~ $ g++ segv.cc -fnon-call-exceptions -g
?
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Daniel Jacobowitz
to printf is going to convert it to a double and it will be printed as
a double, so you're unexpectedly adding double-precision operations to
the program.
Does printf(%f, (double) f) suppress the warning? That's an
explicit conversion instead of an implicit one.
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Daniel Jacobowitz
CodeSourcery
is enabled.
No, this is incorrect. The issue must be specific to modification of
read-only data.
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Daniel Jacobowitz
CodeSourcery
. If it didn't, try a newer version of GDB.
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Daniel Jacobowitz
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.
Not the peripheral, just one register. e.g. you might read a control
register into a struct of the same (32-bit) type, and then read
multiple fields from the copied struct.
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Daniel Jacobowitz
CodeSourcery
@ [length 4] -- assembler error 'insn has length 2'
GCC can output length information, but it is never exact, and it is
not in a form recognized by the assembler.
On x86, I have no idea how this would work.
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Daniel Jacobowitz
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has expressed a similar opinion
and/or tool in the past) is that there is a sane way to do this: put
assertions in the assembler output and have the assembler validate
them.
On the other hand, I'm not going to argue that it's a lot of work.
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Daniel Jacobowitz
CodeSourcery
this. It causes them to be live between statements in a
machine register instead of always stored in stack slots.
This might not be current information though.
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Daniel Jacobowitz
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).
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Daniel Jacobowitz
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-device
memory, or any number of variants on that.
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Daniel Jacobowitz
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function_invariant_p and
chaos ensues.
Is this right? If so, is there somewhere that should assert if an
operand's constraint is marked as an output, but not somewhere that
the RTL allows modification of the operand?
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Daniel Jacobowitz
CodeSourcery
On Fri, Apr 02, 2010 at 12:06:28AM +0100, Bernd Schmidt wrote:
On 04/01/2010 10:54 PM, Daniel Jacobowitz wrote:
I'm debugging a Thumb-2 glibc build failure on trunk for
arm-none-linux-gnueabi. I believe it's from Richard Earnshaw's
2010-02-01 patch for TLS patterns, which includes
both outputs.
Hrm. Yeah, those really should be two pseudos. I'll fix that.
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Daniel Jacobowitz
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/msg0.html
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Daniel Jacobowitz
CodeSourcery
you ever answered Andreas's
question - at least not in a way that I could understand. A size of
what? The size of the *type* on x86 is 16; the size of the *data
bits* is 10. But what cares about the size of the data bits rather
than e.g. the size of the mantissa?
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Daniel Jacobowitz
for shared libraries. It
will ignore profiling samples that lie outside the executable. And in
this case, that includes _mcount (which is in libc.so.6). That's
probably why.
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Daniel Jacobowitz
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what the registers
are.
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Daniel Jacobowitz
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branch alternatives.
I'm curious if anyone thinks there's a generic solution to this (that
doesn't involve a complete instruction selection rewrite :-).
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Daniel Jacobowitz
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entirely.
I don't think anyone's suggested that. o32 is the default ABI for
32-bit MIPS GNU/Linux targets which are still in wide use.
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Daniel Jacobowitz
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it.
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Daniel Jacobowitz
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shell scripts aren't a viable
option for ld. Why make everyone write the wrapper script? Makes
sense to me to have gcc decide.
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Daniel Jacobowitz
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and TARGET_NEON. Now you
need a minimum of three copies of the movmode pattern that are
mostly the same.
It'd be nice if there was a way to compose instruction patterns :-(
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Daniel Jacobowitz
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working on for ARM cmpdi patterns, I ended up needing
cmpdi_lhs_operand and cmpdi_rhs_operand predicates because Cirrus
and VFP targets accept different constants. Automatically generating
that would be a bit excessive though.
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Daniel Jacobowitz
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testsuite.
Interesting, I knew you had a lot of Cirrus patches but I didn't
realize the state of the checked-in code was so bad.
Is what's there useful or actively harmful?
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Daniel Jacobowitz
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unspec_volatile instead of unspec, but that may further inhibit
optimization.
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Daniel Jacobowitz
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have heard of a commercial testsuite built on this
principle :-)
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Daniel Jacobowitz
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, the solution seems to work, except in O0, where I get this error:
This means whatever is calling gen_newrtl to create the insn is not
checking operand predicates first. That's probably code you wrote
too.
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Daniel Jacobowitz
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the cost then ?
- Just say that an unspec has a higher cost?
Are you really talking about rtx_costs? It sounds to me more like you
want to change your scheduler.
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Daniel Jacobowitz
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mode.
I don't believe that this is true. In what way is it not safe?
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Daniel Jacobowitz
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incomplete?
No. It's been finished for two years or more.
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Daniel Jacobowitz
CodeSourcery
On Wed, Nov 25, 2009 at 08:31:27PM +0100, Richard Guenther wrote:
And patch doesn't have an option to ignore whitespace changes.
Sure it does. -l (for loose, or --ignore-whitespace).
QUILT_PATCH_OPTS for quilt.
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Daniel Jacobowitz
CodeSourcery
) Switch to the new mangling
I vote for 2.
Does anyone know of another relevant compiler? What does it do?
For instance, if someone can hand me a test case, I could check how
ARM's compilers mangle it (or don't).
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Daniel Jacobowitz
CodeSourcery
for this?
The color that spells -fuse-linker-plugin seems better, in line
with other options. How it's implemented, especially regarding
having to ignore it in middle-end is unimportant wrt. spelling,
IMVHO.
I agree with H-P.
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Daniel Jacobowitz
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are not considered to be called once, perhaps a visibility
issue. We also should say what limit was reached on inlining hlprog.
Maybe because of whatever did that cloning?
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Daniel Jacobowitz
CodeSourcery
use without (say) #pragma unroll.
Not too limited, I'd say. I've seen a lot of developers willing to
mutilate their critical loops to accomodate the compiler.
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Daniel Jacobowitz
CodeSourcery
file so the linker won't produce undefined references when they are not
actually used by lto1.
Yes. Take a look at config/arm/arm-c.c, which does not go into
libbackend.a.
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Daniel Jacobowitz
CodeSourcery
at compiler developers. I think we would
benefit from more what is the compiler doing to my code options
(producing note:); things like which functions were inlined, which
loops unrolled. We do already have this for vectorization.
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Daniel Jacobowitz
CodeSourcery
On Wed, Oct 07, 2009 at 04:29:29PM +0200, Basile STARYNKEVITCH wrote:
I suppose LTO plugins means plugin dlopen-ed in lto-plugin/lto-symtab.c
It sounds to me like this confusion comes from LTO plugins. Isn't
it just LTO plugin? That is, a specific plugin?
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Daniel Jacobowitz
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at rt.gnu.org via the web
interface:
Isn't this more likely the RT admins closing spam reports?
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Daniel Jacobowitz
CodeSourcery
version of the gcc
cross compiler for this cpu.
If you can't build GCC for your target, I suggest you either use a
help list for that purpose (gcc-help or the crosstool or buildroot
lists), or find a pre-compiled ARM Linux toolchain.
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Daniel Jacobowitz
CodeSourcery
?
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Daniel Jacobowitz
CodeSourcery
and get make_temp_file that way.
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Daniel Jacobowitz
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platform supporting plugins should not suffer
from this problem.
If you're concerned about it, then build a subset. I've considered a
separation of libiberty into replacements and utilities, anyway.
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Daniel Jacobowitz
CodeSourcery
On Thu, Jul 09, 2009 at 03:45:52PM +0200, Basile STARYNKEVITCH wrote:
Daniel Jacobowitz wrote:
On Thu, Jul 09, 2009 at 03:01:01PM +0200, Basile STARYNKEVITCH wrote:
In simpler words, *.so have to be compiled with -fPIC, and libiberty
is not compiled with -fPIC.
We build a PIC libiberty
to suppress warnings.
Statement expressions, on the other hand, are right out. I can't see
any practical way to teach GDB about that.
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Daniel Jacobowitz
CodeSourcery
the tracking inside of the prologue or for register
variables, those that are stored into memory during the prologue and live in
memory shouldn't be tracked outside of the prologue at -O0.
I completely agree, this would make GDB more useful.
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Daniel Jacobowitz
CodeSourcery
of mainline five years ago. A lot
has changed since then.
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Daniel Jacobowitz
CodeSourcery
: the 'qN' registers are two 'dN' registers
concatenated, and GCC only knows about them once.
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Daniel Jacobowitz
CodeSourcery
/2009-04/msg01860.html
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Daniel Jacobowitz
CodeSourcery
GCC 4.x binaries. For instance, in that time we added location list
support.
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Daniel Jacobowitz
CodeSourcery
On Fri, Apr 17, 2009 at 11:58:48AM -0600, Tom Tromey wrote:
Chris Clang just prints the include stack information when anything
Chris in the include stack differs between two consecutive
Chris diagnostics.
We could easily do that too.
FWIW, I think this would be quite useful.
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Daniel
that
contradict each other and later give links to (or quote) the context?
I am having troubling identifying the contradiction.
Please, could you not do it on this list?
A discussion about the differences between LLVM and libjit is wildly
off-topic for GCC development.
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Daniel Jacobowitz
CodeSourcery
, and you have a testcase, please report
it in bugzilla. Thanks.
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Daniel Jacobowitz
CodeSourcery
On Tue, Mar 17, 2009 at 04:03:45PM +0100, Joel Porquet wrote:
2009/3/17 Daniel Jacobowitz d...@false.org:
On Tue, Mar 17, 2009 at 10:26:05AM +0100, Joel Porquet wrote:
I don't understand how the runtime loader could know that! As far as I
know, the tls model is not embedded in reloc
. This is how the uClibc and GLIBC dynamic
loaders work and I believe it's described in Ulrich's paper.
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Daniel Jacobowitz
CodeSourcery
On Mon, Mar 16, 2009 at 06:19:01PM +0100, Joel Porquet wrote:
2009/3/12 Daniel Jacobowitz d...@false.org:
On Thu, Mar 12, 2009 at 02:02:36PM +0100, Joel Porquet wrote:
Check what symbol is at, or near, 0x4003 + 22368. It's probably
the GOT plus a constant bias.
It seems
if the SC *really* need us to not branch before the
license change, as opposed to merely not /release/ until then?
The topmost sentence should be unambiguous. Yes, the SC asked us not
to branch.
But:
(And why, if so?)
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Daniel Jacobowitz
CodeSourcery
-dynamic will return 9): we can see by the way that readelf
is not able to get the symbol name. What do you think about this?
This is a *module* relocation. In local dynamic the module is always
the current DSO; it does not need a symbol.
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Daniel Jacobowitz
CodeSourcery
than the INTERP entry in the program header?
Yes. Symbol preemption is allowed for DSOs but not for PIEs or normal
executables. That explains the different choice of model.
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Daniel Jacobowitz
CodeSourcery
obvious gaffes.
class X {
int x, *y;
X() {
y = x;
}
X(X obj) {
x = obj.x;
y = x;
}
}
Memcpy that somewhere else and the internal pointer is invalid.
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Daniel Jacobowitz
CodeSourcery
in
Bugzilla.
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Daniel Jacobowitz
CodeSourcery
-EL -print-search-dirs?
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Daniel Jacobowitz
CodeSourcery
supposed to implement my rtx_cost function. Since
I don't seem to get a choice between a set 0xcb03 and a (plus 0xcafe
5), how can I tell the compiler the different costs?
They may all have an outer code of SET, but you get the entire inner
RTX. Search arm_rtx_costs_1 for CONST_INT:.
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Daniel
a 4.4 snapshot, please, file them in bugzilla.
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Daniel Jacobowitz
CodeSourcery
arguments will end up different for every plugin.
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Daniel Jacobowitz
CodeSourcery
that rather than testing for a specific CPU model?
This doesn't answer what you should do now, but I can explain the
precedent: the only reason there is a predefine for 405 is so that the
atomicity routines in libstdc++ know to avoid lwsync.
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Daniel Jacobowitz
CodeSourcery
are prefixed by 8. Why is that?
The offsets are biased; that's -32768, the lowest 16-bit signed
offset. The bias is used to expand the addressable range of the
thread pointer.
Glad I could help!
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Daniel Jacobowitz
CodeSourcery
, since it passes
non-zero offsets to __tls_get_addr.
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Daniel Jacobowitz
CodeSourcery
tls variable in global dynamic
model, tls_get_addr must receive the module index and the offset. Here
is the second problem...
That's because this is the local dynamic model.
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Daniel Jacobowitz
CodeSourcery
On Fri, Oct 31, 2008 at 01:02:18PM -0400, Jack Howarth wrote:
Can anyone explain if the recent change in Apple dropping their
NDA will have any impact on the GPLv3 issue with Apple and FSF?
Please discuss this on some more appropriate forum, not here.
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Daniel Jacobowitz
CodeSourcery
and thus DCE deletes it.
Don't focus on DCE. That's not the problem; the fact that there's no
visible dependence is the problem. Can you make the next instruction
have a use for r77 explicitly (CALL_INSN_FUNCTION_USAGE)?
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Daniel Jacobowitz
CodeSourcery
On Sun, Oct 12, 2008 at 03:13:47AM +0800, Zhang Le wrote:
On 00:06 Sat 11 Oct , Daniel Jacobowitz wrote:
If this is ok, I will post a little patch.
That sounds fine, but the whole process is trouble.
Would you explain why it is trouble? Thanks!
For instance, libgcc and libstdc
this is to build a cross
compiler of the right version.
If this is ok, I will post a little patch.
That sounds fine, but the whole process is trouble.
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Daniel Jacobowitz
CodeSourcery
On Mon, Sep 29, 2008 at 03:10:28PM +0100, Joern Rennecke wrote:
To give it a bit more legal bite
There are no lawyers on this list (that I'm aware of). If you want to
discuss this, please contact the FSF or SC directly instead. It does
no good here.
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Daniel Jacobowitz
CodeSourcery
.
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Daniel Jacobowitz
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or overloaded functions?
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Daniel Jacobowitz
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for the
implementation of 'target sim'; it's really an independent project.
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Daniel Jacobowitz
CodeSourcery
code past a volatile
operation.
It's still not sufficient without a memory barrier.
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Daniel Jacobowitz
CodeSourcery
the asm was entered.
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Daniel Jacobowitz
CodeSourcery
switching in a kernel application. */
IMO that shouldn't be written in C, then...
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Daniel Jacobowitz
CodeSourcery
(or with separate compilation, if some stuff is
moved into a separate header).
FWIW, I think this is a good approach.
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Daniel Jacobowitz
CodeSourcery
.
That's incorrect; the glibc maintainers just don't care much for
tarballs. You can find the tag in CVS from several months ago.
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Daniel Jacobowitz
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) | 1
line
Changed paths:
D /trunk
Delete working copy of function-specific to be replaced with a copy of
the mainline after it was checked in
r138078 | meissner | 2008-07-23 07:06:42 -0400 (Wed, 23 Jul 2008) | 1
line
Changed paths:
A /trunk (from /trunk:138076)
undo 138077
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Daniel
On Thu, Jul 24, 2008 at 12:16:20PM -0400, Daniel Jacobowitz wrote:
I have attached
Let's all pretend I attached this glibc patch, instead of the one in
my previous message, please.
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Daniel Jacobowitz
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2008-07-24 Mark Shinwell [EMAIL PROTECTED]
Daniel Jacobowitz [EMAIL
, and thank you for looking at them - and for your patches;
I'm really pretty happy with the combined work.
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Daniel Jacobowitz
CodeSourcery
show the same
problem.
Does anyone have any idea how this has broken, and how to work around
/ fix this in gcc or mklibs?
You'll have to make mklibs ignore this symbol; the linker defines it.
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Daniel Jacobowitz
CodeSourcery
/thread/5cf669951cb2eef1
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Daniel Jacobowitz
CodeSourcery
responsibilities so that I can spend more time on the ones
I care most about. Anyone else want to be binutils release manager?]
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Daniel Jacobowitz
CodeSourcery
ABI-preserving, the PLT entries
still work for MIPS I and still have the same runtime cost when not
resolving. I like it - thanks!
I'm not worried about making people upgrade objdump, either.
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Daniel Jacobowitz
CodeSourcery
; the menu should be before the @include
somewhere.
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Daniel Jacobowitz
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supplement. Supplemental to a somewhat hypothetical
document, but there you go...
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Daniel Jacobowitz
CodeSourcery
. That's true at 0xe; at 0xc the saved location of %ebp is
harder to describe. But that won't explain your crashes. The debug
info looks unusual, but correct.
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Daniel Jacobowitz
CodeSourcery
order-sensitive.
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Daniel Jacobowitz
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again, at least for native. That can
parallelize tests as fine-grained as you wish, and present consistent logs.
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Daniel Jacobowitz
CodeSourcery
file for your triplet.
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Daniel Jacobowitz
CodeSourcery
.
CodeSourcery does this all the time.
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Daniel Jacobowitz
CodeSourcery
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