#1605: hppa port -- gmp handed misaligned memory
----------------------------+-----------------------------------------------
Reporter: guest | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.8.3
Component: Runtime System | Version: 6.6.1
Severity: normal | Resolution:
Keywords: GMP | Difficulty: Easy (1 hr)
Testcase: | Architecture: hppa
Os: HPUX |
----------------------------+-----------------------------------------------
Comment (by igloo):
I think that something like this might be the way to go:
{{{
diff -rN -u old-val/rts/PrimOps.cmm new-val/rts/PrimOps.cmm
--- old-val/rts/PrimOps.cmm 2008-05-24 02:20:52.000000000 +0100
+++ new-val/rts/PrimOps.cmm 2008-05-24 02:21:06.000000000 +0100
@@ -546,23 +546,33 @@
/* ToDo: this is shockingly inefficient */
+#if defined(hpux_HOST_OS)
+#define MP_ALIGN align 8;
+#else
+#define MP_ALIGN
+#endif
+
#ifndef THREADED_RTS
section "bss" {
+ MP_ALIGN
mp_tmp1:
bits8 [SIZEOF_MP_INT];
}
section "bss" {
+ MP_ALIGN
mp_tmp2:
bits8 [SIZEOF_MP_INT];
}
section "bss" {
+ MP_ALIGN
mp_result1:
bits8 [SIZEOF_MP_INT];
}
section "bss" {
+ MP_ALIGN
mp_result2:
bits8 [SIZEOF_MP_INT];
}
@@ -691,6 +701,7 @@
#ifndef THREADED_RTS
section "bss" {
+ MP_ALIGN
mp_tmp_w: W_; // NB. mp_tmp_w is really an here mp_limb_t
}
#endif
}}}
but (in the HEAD) having the align on amd64/Linux gives me:
{{{
../compiler/ghc-inplace -Werror -H64m -Onot -fasm -optc-O2 -I../includes
-I. -Iparallel -Ism -DCOMPILING_RTS -package-name rts -fvia-C -static
-I../gmp/gmpbuild -I../libffi/build/include -I. -dcmm-lint -c
PrimOps.cmm -o PrimOps.o
ghc-6.9.20080523: panic! (the 'impossible' happened)
(GHC version 6.9.20080523 for x86_64-unknown-linux):
PprC.pprTop: can't handle this data
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
make[1]: *** [PrimOps.o] Error 1
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1605#comment:3>
GHC <http://www.haskell.org/ghc/>
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