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libffi: fix powerpc support for functions with many arguments
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: gcc-patches at gcc dot gnu dot org
- Cc: libffi-discuss at sourceware dot org
- Date: Fri, 27 Nov 2009 20:23:20 +0100
- Subject: libffi: fix powerpc support for functions with many arguments
This fixes a bug in the handling of functions with many arguments when
the register space overflows.
Andreas.
2009-11-27 Andreas Schwab <schwab@linux-m68k.org>
* src/powerpc/ffi.c (ffi_prep_args_SYSV): Advance intarg_count
when a float argument is passed in memory.
(ffi_closure_helper_SYSV): Mark general registers as used up when
a 64bit or soft-float long double argument is passed in memory.
Index: libffi/src/powerpc/ffi.c
===================================================================
--- libffi/src/powerpc/ffi.c (revision 154702)
+++ libffi/src/powerpc/ffi.c (working copy)
@@ -185,6 +185,7 @@ ffi_prep_args_SYSV (extended_cif *ecif,
{
*next_arg.f = (float) double_tmp;
next_arg.u += 1;
+ intarg_count++;
}
else
*fpr_base.d++ = double_tmp;
@@ -1149,6 +1150,7 @@ ffi_closure_helper_SYSV (ffi_closure *cl
pst++;
avalue[i] = pst;
pst += 2;
+ ng = 8;
}
break;
@@ -1222,6 +1224,7 @@ ffi_closure_helper_SYSV (ffi_closure *cl
{
avalue[i] = pst;
pst += 4;
+ ng = 8;
}
break;
}
--
Andreas Schwab, schwab@linux-m68k.org
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