* [Caml-list] Problem with 64-bit shared libraries?
@ 2011-11-30 21:37 Alex Rubinsteyn
2011-12-01 1:00 ` Jeff Meister
0 siblings, 1 reply; 3+ messages in thread
From: Alex Rubinsteyn @ 2011-11-30 21:37 UTC (permalink / raw)
To: Caml List
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Hi,
I'd like to package up some OCaml code (along with C bindings) as a shared
library. However, I'm encountering the following linker error:
/usr/bin/ld: /usr/lib/ocaml/libasmrun.a(startup.o): relocation R_X86_64_32
against `.rodata.str1.1' can not be used when making a shared object;
recompile with -fPIC
/usr/lib/ocaml/libasmrun.a: could not read symbols: Bad value
Do I have to recompile OCaml with -fPIC to put the runtime inside a shared
library?
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Caml-list] Problem with 64-bit shared libraries?
2011-11-30 21:37 [Caml-list] Problem with 64-bit shared libraries? Alex Rubinsteyn
@ 2011-12-01 1:00 ` Jeff Meister
2011-12-01 18:59 ` Alex Rubinsteyn
0 siblings, 1 reply; 3+ messages in thread
From: Jeff Meister @ 2011-12-01 1:00 UTC (permalink / raw)
To: Alex Rubinsteyn; +Cc: Caml List
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Yes, you should recompile OCaml with -fPIC. I ran into the same problem a
few months ago, and noticed this bit of information in the INSTALL file:
On a Linux x86/64 bits host, to build the run-time system in PIC mode
(enables putting the runtime in a shared library,
at a small performance cost):
./configure -cc "gcc -fPIC" -aspp "gcc -c -fPIC"
On Wed, Nov 30, 2011 at 1:37 PM, Alex Rubinsteyn
<alex.rubinsteyn@gmail.com>wrote:
> Hi,
>
> I'd like to package up some OCaml code (along with C bindings) as a shared
> library. However, I'm encountering the following linker error:
>
> /usr/bin/ld: /usr/lib/ocaml/libasmrun.a(startup.o): relocation R_X86_64_32
> against `.rodata.str1.1' can not be used when making a shared object;
> recompile with -fPIC
> /usr/lib/ocaml/libasmrun.a: could not read symbols: Bad value
>
> Do I have to recompile OCaml with -fPIC to put the runtime inside a shared
> library?
>
>
>
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Caml-list] Problem with 64-bit shared libraries?
2011-12-01 1:00 ` Jeff Meister
@ 2011-12-01 18:59 ` Alex Rubinsteyn
0 siblings, 0 replies; 3+ messages in thread
From: Alex Rubinsteyn @ 2011-12-01 18:59 UTC (permalink / raw)
To: Jeff Meister; +Cc: Caml List
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Thanks, I guess I'll recompile then. I notice, though, that there's a
libcamlrun_shared.so (for the bytecode runtime). Is there any reason we
don't also get libasmrun_shared.so by default?
On Wed, Nov 30, 2011 at 8:00 PM, Jeff Meister <nanaki@gmail.com> wrote:
> Yes, you should recompile OCaml with -fPIC. I ran into the same problem a
> few months ago, and noticed this bit of information in the INSTALL file:
>
> On a Linux x86/64 bits host, to build the run-time system in PIC mode
> (enables putting the runtime in a shared library,
> at a small performance cost):
> ./configure -cc "gcc -fPIC" -aspp "gcc -c -fPIC"
>
>
> On Wed, Nov 30, 2011 at 1:37 PM, Alex Rubinsteyn <
> alex.rubinsteyn@gmail.com> wrote:
>
>> Hi,
>>
>> I'd like to package up some OCaml code (along with C bindings) as a
>> shared library. However, I'm encountering the following linker error:
>>
>> /usr/bin/ld: /usr/lib/ocaml/libasmrun.a(startup.o): relocation
>> R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared
>> object; recompile with -fPIC
>> /usr/lib/ocaml/libasmrun.a: could not read symbols: Bad value
>>
>> Do I have to recompile OCaml with -fPIC to put the runtime inside a
>> shared library?
>>
>>
>>
>
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