patches/gcc/4.3.2/330-unwind-for-uClibc.patch
author Daniel Price <daniel.price@gmail.com>
Tue Nov 20 16:59:17 2012 -0800 (2012-11-20)
changeset 3126 333d3e40cbd1
parent 766 717efd8b78b4
permissions -rw-r--r--
scripts: refine static linking check to better guide the user

The current mechanism to check if static linking is possible, and the mesage
displayed on failure, can be puzzling to the unsuspecting user.

Also, the current implementation is not using the existing infrastructure,
and is thus difficult to enhance with new tests.

So, switch to using the standard CT_DoExecLog infra, and use four tests to
check for the host compiler:
- check we can run it
- check it can build a trivial program
- check it can statically link that program
- check if it statically link with libstdc++

That should cover most of the problems. Hopefully.

(At the same time, fix a typo in a comment)

Signed-off-by: Daniel Price <daniel.price@gmail.com>
[yann.morin.1998@free.fr: split original patch for self-contained changes]
[yann.morin.1998@free.fr: use steps to better see gcc's output]
[yann.morin.1998@free.fr: commit log]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <163f86b5216fc08c672a.1353459722@nipigon.dssd.com>
Patchwork-Id: 200536
     1 diff -durN gcc-4.3.1.orig/gcc/config/t-linux-uclibc gcc-4.3.1/gcc/config/t-linux-uclibc
     2 --- gcc-4.3.1.orig/gcc/config/t-linux-uclibc	1970-01-01 01:00:00.000000000 +0100
     3 +++ gcc-4.3.1/gcc/config/t-linux-uclibc	2008-07-29 13:07:15.000000000 +0200
     4 @@ -0,0 +1,5 @@
     5 +# Remove glibc specific files added in t-linux
     6 +SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))
     7 +
     8 +# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc
     9 +LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))
    10 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc
    11 --- gcc-4.3.1.orig/gcc/config.gcc	2008-07-29 13:11:02.000000000 +0200
    12 +++ gcc-4.3.1/gcc/config.gcc	2008-07-29 13:10:05.000000000 +0200
    13 @@ -2651,6 +2651,12 @@
    14  	;;
    15  esac
    16  
    17 +# Rather than hook into each target, just do it after all the linux
    18 +# targets have been processed
    19 +case ${target} in
    20 +  *-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc";;
    21 +esac
    22 +
    23  case ${target} in
    24  i[34567]86-*-linux*aout* | i[34567]86-*-linux*libc1)
    25  	tmake_file="${tmake_file} i386/t-gmm_malloc"