Xfail some of PR ld/3809 MIPS failures (part 1)

[Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>]

Namely, that for 32-bit embedded MIPS targets (well, all, see
below), there are these test failures:

Running /mnt/test1/hp/axis/binutils/src/ld/testsuite/ld-mips-elf/mips-elf.exp ...
FAIL: MIPS eh-frame 3
FAIL: MIPS eh-frame 4

("part 2" will deal with "FAIL: Global calls from mips16")

As seen in mips-elf.exp, the tests are for some reason gated on
mips*-*-elf:

if {$embedded_elf} {
    run_dump_test "eh-frame3"
    run_dump_test "eh-frame4"
}

But the *.d files speak of "the official LP64 version of EABI64"
and "the semi-official ILP32 variation of EABI64" which AFAICT
can only apply to 64-bit MIPSen.  At first I thought "better
gate the tests on '#target: mips*64*-*-*' then", but the tests
fail for mipsisa64-elf and mipsisa64-sde-elf too, so they don't
really pass anywhere.  A guess would be that the given gas and
ld parameters don't force 64-bittyness to happen, if at all
applicable.  With a PR already in place, better xfail the tests
until a MIPS maintainer can take a closer look.  (FWIW, this
hasn't happened for the last five years that the PR has been
open.)

Tested with 'RUNTESTFLAGS=mips-elf.exp' cross to mipsel-linux,
mipsisa32r2el-linux, mipsisa32r2el-elf, mipsisa32r2-elf,
mipsel-elf, mips-elf, mips-sgi-irix6, mips-sgi-irix5,
mipsel-sde-elf, mips64-kfreebsd-gnu, mips-dde-sysv4.2MP (a
"mips-*-sysv*" yields ECOFF; a gas/ld inconsistency wart?),
mipsisa64-sde-elf, mipsisa64el-elf, mips-freebsd8.2,
mips64el-freebsd7.3, mips64-freebsd8.1, mipsel-freebsd7.2.
together with the other fixes to-be-posted: lots of failures for
mips-sgi-irix6 but none remaining for this test.  Results for
*-freebsd* are blank and uninteresting as they returned too
early due to mips-elf.exp gating on is_elf_target; see
<http://sourceware.org/ml/binutils/2012-03/msg00039.html>.

Ok?

ld/testsuite:

	PR ld/3809
	* ld-mips-elf/eh-frame3.d, ld-mips-elf/eh-frame4.d: Xfail.

diff --git a/ld/testsuite/ld-mips-elf/eh-frame3.d b/ld/testsuite/ld-mips-elf/eh-frame3.d
index 0328eb8..0150236 100644
--- a/ld/testsuite/ld-mips-elf/eh-frame3.d
+++ b/ld/testsuite/ld-mips-elf/eh-frame3.d
@@ -1,4 +1,5 @@
 #name: MIPS eh-frame 3
+#xfail: *-*-*
 #source: eh-frame1.s
 #source: eh-frame1.s
 #as: -EB -mips3 -mabi=eabi --defsym alignment=3 --defsym fill=0 --defsym foo=0x1020304050607080
@@ -8,6 +9,7 @@
 # This test is for the official LP64 version of EABI64, which uses a
 # combination of 32-bit objects and 64-bit FDE addresses.
 #
+# Currently xfailed as per PR ld/3809.
 
 Contents of the \.eh_frame section:
 
diff --git a/ld/testsuite/ld-mips-elf/eh-frame4.d b/ld/testsuite/ld-mips-elf/eh-frame4.d
index effb457..6aea872 100644
--- a/ld/testsuite/ld-mips-elf/eh-frame4.d
+++ b/ld/testsuite/ld-mips-elf/eh-frame4.d
@@ -1,4 +1,5 @@
 #name: MIPS eh-frame 4
+#xfail: *-*-*
 #source: eh-frame1.s
 #source: eh-frame1.s
 #as: -EB -mips3 -mabi=eabi --defsym alignment=2 --defsym fill=0 --defsym foo=0x50607080
@@ -7,6 +8,7 @@
 #
 # This test is for the semi-official ILP32 variation of EABI64.
 #
+# Currently xfailed as per PR ld/3809.
 
 Contents of the \.eh_frame section:
 
brgds, H-P