From: David Fernandez <david.fernandez.work@googlemail.com>
To: "crossgcc@sourceware.org" <crossgcc@sourceware.org>
Subject: arm[eb]-eabi-gcc for cortex-r4[f] with newlib has problems with multilib/libraries.
Date: Sat, 15 Jun 2013 00:05:00 -0000 [thread overview]
Message-ID: <51BBAFD2.3040300@googlemail.com> (raw)
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Hi there,
I've built an arm[eb]-eabi-gcc for --with-cpu=cortex-r4[f]
--with-mode=thumb --with-newlib, both manually and with crosstool-ng. In
all cases, I get a strange problem when building a main function with
ful C runtime library support like this (include the latest version, but
it happens with the little endian, and with the cortex-r4 too):
$ armeb-eabi-gcc -mbig-endian -mthumb -march=armv7-r -mcpu=cortex-r4f -o
alignpack alignpack.c
/opt/x-tools/armeb-unknown-eabi/lib/gcc/armeb-unknown-eabi/4.7.2/../../../../armeb-unknown-eabi/bin/ld:
error:
/opt/x-tools/armeb-unknown-eabi/lib/gcc/armeb-unknown-eabi/4.7.2/../../../../armeb-unknown-eabi/lib/libc.a(lib_a-strlen-armv7.o):
Conflicting architecture profiles A/R
/opt/x-tools/armeb-unknown-eabi/lib/gcc/armeb-unknown-eabi/4.7.2/../../../../armeb-unknown-eabi/bin/ld:
failed to merge target specific data of file
/opt/x-tools/armeb-unknown-eabi/lib/gcc/armeb-unknown-eabi/4.7.2/../../../../armeb-unknown-eabi/lib/libc.a(lib_a-strlen-armv7.o)
collect2: error: ld returned 1 exit status
I'm pretty sure that when I built this same kind of compiler for a
cortex-m3, it did not do this.
Anyway, find attached the alignpack.c, and the crosstool-ng log. I had
to use newlib-2.0.0 to make it work with the tuple armeb-xxx.
I've tried additional multilib permutations, but the errors keep appearing.
Any thoughts?
Regards.
David Fernandez
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#include <stddef.h>
#include <stdint.h>
#define ALIGNEDP(x) __attribute__((aligned(x),packed))
#define ALIGNED(x) __attribute__((aligned(x)))
struct s1 {
uint32_t a;
uint16_t b;
uint32_t c;
char d ALIGNED(16/__CHAR_BIT__);
char e ALIGNED(16/__CHAR_BIT__);
} ALIGNEDP(16/__CHAR_BIT__);
typedef struct s1 s1_t;
void main(void)
{
volatile int i,j,k;
i = sizeof(s1_t);
j = offsetof(struct s1,d);
k = offsetof(struct s1,e);
}
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next reply other threads:[~2013-06-15 0:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-15 0:05 David Fernandez [this message]
2013-07-05 23:02 ` David Fernandez
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