crosstool-ng: patches/glibc/2.7/270-sh-fix-procfs.patch@a70abdbfa342

complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

     1 diff -durN glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/procfs.h glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/procfs.h

     2 --- glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/procfs.h	2004-11-20 18:56:16.000000000 +0100

     3 +++ glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/procfs.h	2008-10-24 11:21:15.000000000 +0200

     4 @@ -29,10 +29,32 @@

     5  #include <sys/types.h>

     6  #include <sys/ucontext.h>

     7  #include <sys/user.h>

     8 -#include <asm/elf.h>

    10  __BEGIN_DECLS

    12 +/* BEGIN - UGLY HACK - YEM

    13 + * These definitions are copied from the Alpha file,

    14 + * and the register numbers are set accordingly to

    15 + * what I could find in the Linux kernel sources

    16 + * Highly dubious !!!!

    17 + * BIG FAT WARNING !!!

    18 + */

    19 +

    20 +/* Linux kernel says 16 (standards?) registers */

    21 +#define ELF_NGREG  16

    22 +/* Linux kernel says 16 floating point registers */

    23 +#define ELF_NFPREG 16

    24 +

    25 +/* Copied from Alpha as is */

    26 +typedef unsigned long elf_greg_t;

    27 +typedef elf_greg_t elf_gregset_t[ELF_NGREG];

    28 +

    29 +/* Ditto */

    30 +typedef double elf_fpreg_t;

    31 +typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];

    32 +

    33 +/* END - UGLY HACK - YEM */

    34 +

    35  struct elf_siginfo

    36    {

    37      int si_signo;			/* Signal number.  */

author	"Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
	Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854	a70abdbfa342
parent 962	2ba4393e0441
permissions	-rw-r--r--