valgrind: improve mips support

We have to remove the FPU check, it will run in an endless loop on LEDE
when compile without FPU emulation support.
The second patch fixes this problem: valgrind: mmap(0x400000, 303104)
failed in UME with error 22 (Invalid argument).

valgrind still does not support mips16, build LEDE without mips16 support.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2016-10-03 16:23:17 +02:00
parent 90a4f2ec6d
commit b8d802fe9f
2 changed files with 56 additions and 0 deletions

View file

@ -32,3 +32,21 @@
return ret;
}
--- a/coregrind/m_machine.c
+++ b/coregrind/m_machine.c
@@ -1652,6 +1652,7 @@ Bool VG_(machine_get_hwcaps)( void )
}
}
+#ifndef __mips_soft_float
/* Check if CPU has FPU and 32 dbl. prec. FP registers */
int FIR = 0;
__asm__ __volatile__(
@@ -1661,6 +1662,7 @@ Bool VG_(machine_get_hwcaps)( void )
if (FIR & (1 << FP64)) {
vai.hwcaps |= VEX_PRID_CPU_32FPR;
}
+#endif
VG_(convert_sigaction_fromK_to_toK)(&saved_sigill_act, &tmp_sigill_act);
VG_(sigaction)(VKI_SIGILL, &tmp_sigill_act, NULL);

View file

@ -0,0 +1,38 @@
r15754 | petarj | 2015-12-29 20:14:37 +0100 (Tue, 29 Dec 2015) | 8 lines
mips: remove link script exception for MIPS arch
Current toolchains on MIPS targets that we care about are reasonably
modern and we do not need this link script exception for MIPS anymore.
This should fix issues with newer toolchain versions and .MIPS.abiflags
section.
--- a/coregrind/link_tool_exe_linux.in
+++ b/coregrind/link_tool_exe_linux.in
@@ -69,24 +69,7 @@ shift; # Remove $ala from @ARGV
die "Bogus alt-load address"
if (length($ala) < 3 || index($ala, "0x") != 0);
-# For mips32 or mips64 we need to use "--section-start=.reginfo=$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') || ($arch eq 'mipsel')
- || ($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 {
- $extra_args = "-static -Wl,@FLAG_T_TEXT@=$ala";
-}
-
-my $cmd = join(" ", @ARGV, $extra_args);
+my $cmd = join(" ", @ARGV, "-static -Wl,@FLAG_T_TEXT@=$ala");
#print "link_tool_exe_linux: $cmd\n";