mips: fix link_tool_exe_linux issue for different mips architectures

One issue has been reported on the mailing list by Ilya Smelykh, and the second
issue has been found in development for MIPS64.
The change modifies the way we detect target-arch by reading host_cpu from
config.log rather than asking the toolchain.

Also, for MIPS64, we use:

--section-start=.MIPS.options=$ala

while for o32 we still use:

--section-start=.reginfo=$ala

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13249

diff --git a/coregrind/link_tool_exe_linux.in b/coregrind/link_tool_exe_linux.in
index 191099f2d687612536868ae07e7c83a85832b30e..fe50d00ca69dfba94ff9722f4a7519f06c0d3643 100644 (file)
--- a/coregrind/link_tool_exe_linux.in
+++ b/coregrind/link_tool_exe_linux.in
@@ -66,16 +66,19 @@ shift; # Remove $ala from @ARGV
 die "Bogus alt-load address"
     if (length($ala) < 3 || index($ala, "0x") != 0);
 
-# For mips we need to use "--section-start=.reginfo=$ala" because
-# "--section-start=.reginfo=$ala" will put all the sections to the 
-# specificed address ($ala)
-my $orig_cmd = join(" ", @ARGV);
-my $x=`$orig_cmd -v 2>&1 | grep Target | sed 's/Target: //g'`;
-my $arch=substr($x, 0, index($x, '-'));
+# For mips32 or mips64 we need to use "--section-start=.reginfo=$ala" or
+# "--section-start=.MIPS.options=$ala" respectively, because "-Ttext=$ala" will
+# not put all the sections to the specificed address ($ala).
+my $x = `cat ../config.log 2>&1 | grep host_cpu= | sed "s/host_cpu='//g"`;
+my $arch = substr($x, 0, index($x, "'"));
 
 my $extra_args;
-if (($arch eq 'mips') || ($arch eq 'mipsel')) {
+if (($arch eq 'mips') || ($arch eq 'mipsel')
+    || ($arch eq 'mipsisa32r2el')) {
    $extra_args = "-static -Wl,--section-start=.reginfo=$ala";
+} elsif (($arch eq 'mips64') || ($arch eq 'mips64el') ||
+         ($arch eq 'mipsisa64el')) {
+   $extra_args = "-static -Wl,--section-start=.MIPS.options=$ala";
 } else {
    $extra_args = "-static -Wl,-Ttext=$ala";
 }