Merge lp:~michaelh1/gcc-linaro/no-div64-unwind into lp:gcc-linaro/4.7

[Michael Hope]

Backport Julian's removal of div6 exceptions. Stops the unwind routines being pulled in for simple programs.

  2012-08-21 Michael Hope <email address hidden>

        Backport from mainline r190483:

        libgcc/
        2012-08-17 Julian Brown <email address hidden>

        * Makefile.in (LIB2_DIVMOD_EXCEPTION_FLAGS): Default to
        -fexceptions -fnon-call-exceptions if not defined.
        ($(lib2-divmod-o), $(lib2-divmod-s-o)): Use above.
        * config/arm/t-bpabi (LIB2_DIVMOD_EXCEPTION_FLAGS): Define.

        gcc/testsuite/
        2012-08-17 Julian Brown <email address hidden>

        * gcc.target/arm/div64-unwinding.c: New test.

[Michael Hope (michaelh1)]

cbuild has taken a snapshot of this branch at r115013 and queued it for build.

The diff against the ancestor r115012 is available at:
 http://builds.linaro.org/toolchain/snapshots/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind.diff

and will be built on the following builders:
 a9-builder a9hf-builder armv5-builder i686 x86_64

You can track the build queue at:
 http://ex.seabright.co.nz/helpers/scheduler

cbuild-snapshot: gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind
cbuild-ancestor: lp:gcc-linaro+bzr115012
cbuild-state: check

[Linaro Toolchain Builder (cbuild)]

cbuild successfully built this on armv7l-precise-cbuild361-ursa3-cortexa9hfr1.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-precise-cbuild361-ursa3-cortexa9hfr1

-UNSUPPORTED: g++.dg/simulate-thread/bitfields-2.C -Os -g thread simulation test
+PASS: g++.dg/simulate-thread/bitfields-2.C -Os -g thread simulation test
+PASS: gcc.target/arm/div64-unwinding.c (test for excess errors)
+FAIL: gcc.target/arm/div64-unwinding.c execution test

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-precise-cbuild361-ursa3-cortexa9hfr1/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-precise-cbuild361-ursa3-cortexa9hfr1/gcc-testsuite.txt

cbuild-checked: armv7l-precise-cbuild361-ursa3-cortexa9hfr1

[Linaro Toolchain Builder (cbuild)]

cbuild successfully built this on i686-precise-cbuild361-oort2-i686r1.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/i686-precise-cbuild361-oort2-i686r1

The testsuite results are the same as the branch point lp:gcc-linaro+bzr115012

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/i686-precise-cbuild361-oort2-i686r1/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/i686-precise-cbuild361-oort2-i686r1/gcc-testsuite.txt

cbuild-checked: i686-precise-cbuild361-oort2-i686r1

[Linaro Toolchain Builder (cbuild)]

cbuild successfully built this on x86_64-precise-cbuild361-oort1-x86_64r1.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/x86_64-precise-cbuild361-oort1-x86_64r1

The testsuite results are the same as the branch point lp:gcc-linaro+bzr115012

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/x86_64-precise-cbuild361-oort1-x86_64r1/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/x86_64-precise-cbuild361-oort1-x86_64r1/gcc-testsuite.txt

cbuild-checked: x86_64-precise-cbuild361-oort1-x86_64r1

[Michael Hope (michaelh1)]

The fault exists upstream. The change is correct but the unwinder is being enabled for other reasons.

Will report.

[Linaro Toolchain Builder (cbuild)]

cbuild successfully built this on armv7l-natty-cbuild361-tcpanda03-armv5r2.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-natty-cbuild361-tcpanda03-armv5r2

+PASS: gcc.target/arm/div64-unwinding.c (test for excess errors)
+FAIL: gcc.target/arm/div64-unwinding.c execution test

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-natty-cbuild361-tcpanda03-armv5r2/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr115013~michaelh1~no-div64-unwind/logs/armv7l-natty-cbuild361-tcpanda03-armv5r2/gcc-testsuite.txt

cbuild-checked: armv7l-natty-cbuild361-tcpanda03-armv5r2