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authormidipix <writeonce@midipix.org>2015-04-01 21:57:10 -0400
committermidipix <writeonce@midipix.org>2015-04-01 21:57:10 -0400
commit21671a3d5059b9d55cbc6a98cf879e18678a654c (patch)
tree34f4b9e4387b218171970976a2edf92cdf9d2931 /gcc/config
parent84d07b425fcf5436443630c796593832f91d98de (diff)
downloadcbb-gcc-4.6.4-21671a3d5059b9d55cbc6a98cf879e18678a654c.tar.bz2
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midipix target implementation: finalize preliminary biarch support.
+ set default arch to m32/m64 for the i686- and x86_64- toolchains, respectively. + temporarily disable SEH for the i686-nt32-midipix target; this is needed since the 32-bit PE assembler rejects .seh_proc, meaning that currently we cannot even have 32-bit SEH support as a stub (adding the necessary assembler support should be easy, as it already exists for the 64-bit Windows targets). signed-off by Z. Gilboa; see copying.midipix (9cd0746c) for additional information.
Diffstat (limited to 'gcc/config')
-rw-r--r--gcc/config/i386/midipix.c17
-rw-r--r--gcc/config/i386/midipix.h8
2 files changed, 15 insertions, 10 deletions
diff --git a/gcc/config/i386/midipix.c b/gcc/config/i386/midipix.c
index 412ebfcbb..bb05cc105 100644
--- a/gcc/config/i386/midipix.c
+++ b/gcc/config/i386/midipix.c
@@ -19,6 +19,7 @@
/* */
/*****************************************************************************/
+
#include "config.h"
#include "system.h"
#include "coretypes.h"
@@ -29,6 +30,7 @@
#include "flags.h"
#include "target.h"
#include "i386-protos.h"
+#include "function.h"
/* common specs */
const int TARGET_NOP_FUN_DLLIMPORT = 0;
@@ -36,14 +38,8 @@ const int use_pe_aligned_common = 1;
const int flag_writable_rel_rdata = 0;
/* target SEH providers */
-#define TARGET_SEH_WINNT (TARGET_NT64 && flag_unwind_tables)
-#define TARGET_SEH_MIDIPIX (TARGET_NT32 && flag_unwind_tables)
-
-#undef TARGET_SEH_WINNT
-#undef TARGET_SEH_MIDIPIX
-
-#define TARGET_SEH_WINNT (TARGET_NT64)
-#define TARGET_SEH_MIDIPIX (TARGET_NT32)
+#define TARGET_SEH_WINNT (TARGET_SEH && TARGET_NT64)
+#define TARGET_SEH_MIDIPIX (TARGET_SEH && TARGET_NT32)
/* 64-bit seh provided by winnt */
void winnt_x86_64_pe_seh_init(FILE *);
@@ -407,7 +403,10 @@ void midipix_i386_pe_start_function (FILE * gas_exhaled, const char *name, tree
void midipix_i386_pe_end_function (FILE * gas_exhaled, const char * name, tree decl)
{
- i386_pe_end_function (gas_exhaled, name, decl);
+ if ((!TARGET_SEH) || (cfun->is_thunk))
+ return;
+
+ fputs ("\t.seh_endproc\n", gas_exhaled);
#ifdef MIDIPIX_TARGET_DEBUG
fputs ("\t# </", gas_exhaled);
diff --git a/gcc/config/i386/midipix.h b/gcc/config/i386/midipix.h
index 765657365..4abcda1f7 100644
--- a/gcc/config/i386/midipix.h
+++ b/gcc/config/i386/midipix.h
@@ -22,6 +22,12 @@
#include <stdio.h>
#include "coretypes.h"
+#if TARGET_64BIT_DEFAULT
+#define MULTILIB_DEFAULTS { "m64" }
+#else
+#define MULTILIB_DEFAULTS { "m32" }
+#endif
+
/* identify targets */
#define TARGET_NT64 (TARGET_64BIT)
@@ -30,7 +36,7 @@
/* target constraints */
#undef TARGET_SEH
-#define TARGET_SEH (flag_unwind_tables)
+#define TARGET_SEH (TARGET_NT64 && flag_unwind_tables)
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT (8 * (2 * 4096))