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[binutils-gdb] Add Nios II arch flags and compatibility tests
- From: Sandra Loosemore <sandra at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 1 Jul 2015 22:57:16 -0000
- Subject: [binutils-gdb] Add Nios II arch flags and compatibility tests
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=965b1d80832fde9ba17a8b5f11b578a8f9e10581
commit 965b1d80832fde9ba17a8b5f11b578a8f9e10581
Author: Sandra Loosemore <sandra@codesourcery.com>
Date: Wed Jul 1 15:55:28 2015 -0700
Add Nios II arch flags and compatibility tests
2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
bfd/
* archures.c (bfd_mach_nios2r1, bfd_mach_nios2r2): New.
* bfd-in2.h: Regenerated.
* cpu-nios2.c (nios2_compatible): New.
(N): Use nios2_compatible instead of bfd_default_compatible.
(NIOS2R1_NEXT, NIOS2R2_NEXT): Define.
(arch_info_struct): New.
(bfd_nios2_arch): Chain to NIOS2R1_NEXT.
* elf32-nios2.c (is_nios2_elf): New.
(nios2_elf32_merge_private_bfd_data): New.
(nios2_elf32_object_p): New.
(bfd_elf32_bfd_merge_private_bfd_data): Define.
(elf_backend_object_p): Define.
gas/
* config/tc-nios2.c: Adjust includes.
(OPTION_MARCH): Define.
(md_longopts): Add -march option.
(nios2_architecture): New.
(nios2_use_arch): New.
(md_parse_option): Handle OPTION_MARCH.
(md_show_usage): Document -march.
(md_begin): Set arch in BFD.
(nios2_elf_final_processing): New.
* config/tc-nios2.h (elf_tc_final_processing): Define.
(nios2_elf_final_processing): New.
* doc/c-nios2.texi (-march): Add documentation.
include/elf/
* nios2.h (EF_NIOS2_ARCH_R1, EF_NIOS2_ARCH_R2): Define.
ld/testsuite/
* ld-nios2/mixed1a.d: New.
* ld-nios2/mixed1a.s: New.
* ld-nios2/mixed1b.d: New.
* ld-nios2/mixed1b.s: New.
* ld-nios2/nios2.exp: Build the new compatibility tests.
Diff:
---
bfd/ChangeLog | 16 +++++++
bfd/archures.c | 6 ++-
bfd/bfd-in2.h | 6 ++-
bfd/cpu-nios2.c | 34 ++++++++++++++-
bfd/elf32-nios2.c | 93 +++++++++++++++++++++++++++++++++++++++++
gas/ChangeLog | 16 +++++++
gas/config/tc-nios2.c | 66 ++++++++++++++++++++++++++++-
gas/config/tc-nios2.h | 3 ++
gas/doc/c-nios2.texi | 10 +++++
include/elf/ChangeLog | 5 +++
include/elf/nios2.h | 5 +++
ld/testsuite/ChangeLog | 9 ++++
ld/testsuite/ld-nios2/mixed1a.d | 9 ++++
ld/testsuite/ld-nios2/mixed1a.s | 9 ++++
ld/testsuite/ld-nios2/mixed1b.d | 9 ++++
ld/testsuite/ld-nios2/mixed1b.s | 3 ++
ld/testsuite/ld-nios2/nios2.exp | 26 +++++++++++-
17 files changed, 316 insertions(+), 9 deletions(-)
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5c1e94c..701f177 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,19 @@
+2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
+ Cesar Philippidis <cesar@codesourcery.com>
+
+ * archures.c (bfd_mach_nios2r1, bfd_mach_nios2r2): New.
+ * bfd-in2.h: Regenerated.
+ * cpu-nios2.c (nios2_compatible): New.
+ (N): Use nios2_compatible instead of bfd_default_compatible.
+ (NIOS2R1_NEXT, NIOS2R2_NEXT): Define.
+ (arch_info_struct): New.
+ (bfd_nios2_arch): Chain to NIOS2R1_NEXT.
+ * elf32-nios2.c (is_nios2_elf): New.
+ (nios2_elf32_merge_private_bfd_data): New.
+ (nios2_elf32_object_p): New.
+ (bfd_elf32_bfd_merge_private_bfd_data): Define.
+ (elf_backend_object_p): Define.
+
2015-07-01 H.J. Lu <hongjiu.lu@intel.com>
* elf64-x86-64.c (elf_x86_64_convert_mov_to_lea): Refactor.
diff --git a/bfd/archures.c b/bfd/archures.c
index 677c470..95433f8 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -501,8 +501,10 @@ DESCRIPTION
. bfd_arch_aarch64, {* AArch64 *}
.#define bfd_mach_aarch64 0
.#define bfd_mach_aarch64_ilp32 32
-. bfd_arch_nios2,
-.#define bfd_mach_nios2 0
+. bfd_arch_nios2, {* Nios II *}
+.#define bfd_mach_nios2 0
+.#define bfd_mach_nios2r1 1
+.#define bfd_mach_nios2r2 2
. bfd_arch_visium, {* Visium *}
.#define bfd_mach_visium 1
. bfd_arch_last
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index ce964bb..83d729e 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -2294,8 +2294,10 @@ enum bfd_architecture
bfd_arch_aarch64, /* AArch64 */
#define bfd_mach_aarch64 0
#define bfd_mach_aarch64_ilp32 32
- bfd_arch_nios2,
-#define bfd_mach_nios2 0
+ bfd_arch_nios2, /* Nios II */
+#define bfd_mach_nios2 0
+#define bfd_mach_nios2r1 1
+#define bfd_mach_nios2r2 2
bfd_arch_visium, /* Visium */
#define bfd_mach_visium 1
bfd_arch_last
diff --git a/bfd/cpu-nios2.c b/bfd/cpu-nios2.c
index 57539db..1e8f521 100644
--- a/bfd/cpu-nios2.c
+++ b/bfd/cpu-nios2.c
@@ -24,6 +24,26 @@
#include "bfd.h"
#include "libbfd.h"
+static const bfd_arch_info_type *
+nios2_compatible (const bfd_arch_info_type *a,
+ const bfd_arch_info_type *b)
+{
+ if (a->arch != b->arch)
+ return NULL;
+
+ if (a->bits_per_word != b->bits_per_word)
+ return NULL;
+
+ if (a->mach == bfd_mach_nios2)
+ return a;
+ else if (b->mach == bfd_mach_nios2)
+ return b;
+ else if (a->mach != b->mach)
+ return NULL;
+
+ return a;
+}
+
#define N(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT) \
{ \
BITS_WORD, /* bits in a word */ \
@@ -35,10 +55,20 @@
PRINT, \
3, \
DEFAULT, \
- bfd_default_compatible, \
+ nios2_compatible, \
bfd_default_scan, \
bfd_arch_default_fill, \
NEXT \
}
-const bfd_arch_info_type bfd_nios2_arch = N (32, 32, 0, "nios2", TRUE, NULL);
+#define NIOS2R1_NEXT &arch_info_struct[0]
+#define NIOS2R2_NEXT &arch_info_struct[1]
+
+static const bfd_arch_info_type arch_info_struct[] =
+{
+ N (32, 32, bfd_mach_nios2r1, "nios2:r1", FALSE, NIOS2R2_NEXT),
+ N (32, 32, bfd_mach_nios2r2, "nios2:r2", FALSE, NULL),
+};
+
+const bfd_arch_info_type bfd_nios2_arch =
+ N (32, 32, 0, "nios2", TRUE, NIOS2R1_NEXT);
diff --git a/bfd/elf32-nios2.c b/bfd/elf32-nios2.c
index 4f992bf..6a1372b 100644
--- a/bfd/elf32-nios2.c
+++ b/bfd/elf32-nios2.c
@@ -2038,6 +2038,72 @@ nios2_elf32_build_stubs (struct bfd_link_info *info)
}
+#define is_nios2_elf(bfd) \
+ (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
+ && elf_object_id (bfd) == NIOS2_ELF_DATA)
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static bfd_boolean
+nios2_elf32_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+{
+ flagword old_flags;
+ flagword new_flags;
+
+ if (!is_nios2_elf (ibfd) || !is_nios2_elf (obfd))
+ return TRUE;
+
+ /* Check if we have the same endianness. */
+ if (! _bfd_generic_verify_endian_match (ibfd, obfd))
+ return FALSE;
+
+ new_flags = elf_elfheader (ibfd)->e_flags;
+ old_flags = elf_elfheader (obfd)->e_flags;
+ if (!elf_flags_init (obfd))
+ {
+ /* First call, no flags set. */
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = new_flags;
+
+ switch (new_flags)
+ {
+ default:
+ case EF_NIOS2_ARCH_R1:
+ bfd_default_set_arch_mach (obfd, bfd_arch_nios2, bfd_mach_nios2r1);
+ break;
+ case EF_NIOS2_ARCH_R2:
+ if (bfd_big_endian (ibfd))
+ {
+ (*_bfd_error_handler)
+ (_("error: %B: Big-endian R2 is not supported."), ibfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ bfd_default_set_arch_mach (obfd, bfd_arch_nios2, bfd_mach_nios2r2);
+ break;
+ }
+ }
+
+ /* Incompatible flags. */
+ else if (new_flags != old_flags)
+ {
+ /* So far, the only incompatible flags denote incompatible
+ architectures. */
+ (*_bfd_error_handler)
+ (_("error: %B: Conflicting CPU architectures %d/%d"),
+ ibfd, new_flags, old_flags);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ /* Merge Tag_compatibility attributes and any common GNU ones. */
+ _bfd_elf_merge_object_attributes (ibfd, obfd);
+
+ return TRUE;
+}
+
+
/* Implement bfd_elf32_bfd_reloc_type_lookup:
Given a BFD reloc type, return a howto structure. */
static reloc_howto_type *
@@ -3707,6 +3773,29 @@ nios2_elf32_copy_indirect_symbol (struct bfd_link_info *info,
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
}
+/* Set the right machine number for a NIOS2 ELF file. */
+
+static bfd_boolean
+nios2_elf32_object_p (bfd *abfd)
+{
+ unsigned long mach;
+
+ mach = elf_elfheader (abfd)->e_flags;
+
+ switch (mach)
+ {
+ default:
+ case EF_NIOS2_ARCH_R1:
+ bfd_default_set_arch_mach (abfd, bfd_arch_nios2, bfd_mach_nios2r1);
+ break;
+ case EF_NIOS2_ARCH_R2:
+ bfd_default_set_arch_mach (abfd, bfd_arch_nios2, bfd_mach_nios2r2);
+ break;
+ }
+
+ return TRUE;
+}
+
/* Implement elf_backend_check_relocs:
Look through the relocs for a section during the first phase. */
static bfd_boolean
@@ -5256,6 +5345,9 @@ const struct bfd_elf_special_section elf32_nios2_special_sections[] =
#define bfd_elf32_bfd_link_hash_table_create \
nios2_elf32_link_hash_table_create
+#define bfd_elf32_bfd_merge_private_bfd_data \
+ nios2_elf32_merge_private_bfd_data
+
/* Relocation table lookup macros. */
#define bfd_elf32_bfd_reloc_type_lookup nios2_elf32_bfd_reloc_type_lookup
@@ -5292,6 +5384,7 @@ const struct bfd_elf_special_section elf32_nios2_special_sections[] =
#define elf_backend_size_dynamic_sections nios2_elf32_size_dynamic_sections
#define elf_backend_add_symbol_hook nios2_elf_add_symbol_hook
#define elf_backend_copy_indirect_symbol nios2_elf32_copy_indirect_symbol
+#define elf_backend_object_p nios2_elf32_object_p
#define elf_backend_grok_prstatus nios2_grok_prstatus
#define elf_backend_grok_psinfo nios2_grok_psinfo
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 7796577..470cd9f 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,19 @@
+2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
+ Cesar Philippidis <cesar@codesourcery.com>
+
+ * config/tc-nios2.c: Adjust includes.
+ (OPTION_MARCH): Define.
+ (md_longopts): Add -march option.
+ (nios2_architecture): New.
+ (nios2_use_arch): New.
+ (md_parse_option): Handle OPTION_MARCH.
+ (md_show_usage): Document -march.
+ (md_begin): Set arch in BFD.
+ (nios2_elf_final_processing): New.
+ * config/tc-nios2.h (elf_tc_final_processing): Define.
+ (nios2_elf_final_processing): New.
+ * doc/c-nios2.texi (-march): Add documentation.
+
2015-06-30 Amit Pawar <Amit.Pawar@amd.com>
* config/tc-i386.c (cpu_arch): Add .mwaitx.
diff --git a/gas/config/tc-nios2.c b/gas/config/tc-nios2.c
index 2fb26b8..549ca98 100644
--- a/gas/config/tc-nios2.c
+++ b/gas/config/tc-nios2.c
@@ -25,6 +25,7 @@
#include "elf/nios2.h"
#include "tc-nios2.h"
#include "bfd.h"
+#include "libbfd.h"
#include "dwarf2dbg.h"
#include "subsegs.h"
#include "safe-ctype.h"
@@ -80,7 +81,9 @@ struct option md_longopts[] = {
#define OPTION_EB (OPTION_MD_BASE + 3)
{"EB", no_argument, NULL, OPTION_EB},
#define OPTION_EL (OPTION_MD_BASE + 4)
- {"EL", no_argument, NULL, OPTION_EL}
+ {"EL", no_argument, NULL, OPTION_EL},
+#define OPTION_MARCH (OPTION_MD_BASE + 5)
+ {"march", required_argument, NULL, OPTION_MARCH}
};
size_t md_longopts_size = sizeof (md_longopts);
@@ -212,6 +215,9 @@ static symbolS *nios2_last_label;
symbolS *GOT_symbol;
#endif
+/* The processor architecture value, EF_NIOS2_ARCH_R1 by default. */
+static int nios2_architecture = EF_NIOS2_ARCH_R1;
+
/** Utility routines. */
/* Function md_chars_to_number takes the sequence of
@@ -2209,6 +2215,34 @@ output_movia (nios2_insn_infoS *insn)
/** External interfaces. */
+/* Update the selected architecture based on ARCH, giving an error if
+ ARCH is an invalid value. */
+
+static void
+nios2_use_arch (const char *arch)
+{
+ if (strcmp (arch, "nios2") == 0 || strcmp (arch, "r1") == 0)
+ {
+ nios2_architecture |= EF_NIOS2_ARCH_R1;
+ nios2_opcodes = (struct nios2_opcode *) nios2_r1_opcodes;
+ nios2_num_opcodes = nios2_num_r1_opcodes;
+ nop32 = nop_r1;
+ nop16 = NULL;
+ return;
+ }
+ else if (strcmp (arch, "r2") == 0)
+ {
+ nios2_architecture |= EF_NIOS2_ARCH_R2;
+ nios2_opcodes = (struct nios2_opcode *) nios2_r2_opcodes;
+ nios2_num_opcodes = nios2_num_r2_opcodes;
+ nop32 = nop_r2;
+ nop16 = nop_r2_cdx;
+ return;
+ }
+
+ as_bad (_("unknown architecture '%s'"), arch);
+}
+
/* The following functions are called by machine-independent parts of
the assembler. */
int
@@ -2235,6 +2269,9 @@ md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
case OPTION_EL:
target_big_endian = 0;
break;
+ case OPTION_MARCH:
+ nios2_use_arch (arg);
+ break;
default:
return 0;
break;
@@ -2262,9 +2299,11 @@ md_show_usage (FILE *stream)
"branches with jmp sequences (default)\n"
" -no-relax do not replace any branches or calls\n"
" -EB force big-endian byte ordering\n"
- " -EL force little-endian byte ordering\n");
+ " -EL force little-endian byte ordering\n"
+ " -march=ARCH enable instructions from architecture ARCH\n");
}
+
/* This function is called once, at assembler startup time.
It should set up all the tables, etc. that the MD part of the
assembler will need. */
@@ -2274,6 +2313,19 @@ md_begin (void)
int i;
const char *inserted;
+ switch (nios2_architecture)
+ {
+ default:
+ case EF_NIOS2_ARCH_R1:
+ bfd_default_set_arch_mach (stdoutput, bfd_arch_nios2, bfd_mach_nios2r1);
+ break;
+ case EF_NIOS2_ARCH_R2:
+ if (target_big_endian)
+ as_fatal (_("Big-endian R2 is not supported."));
+ bfd_default_set_arch_mach (stdoutput, bfd_arch_nios2, bfd_mach_nios2r2);
+ break;
+ }
+
/* Create and fill a hashtable for the Nios II opcodes, registers and
arguments. */
nios2_opcode_hash = hash_new ();
@@ -2747,3 +2799,13 @@ nios2_frame_initial_instructions (void)
{
cfi_add_CFA_def_cfa (27, 0);
}
+
+#ifdef OBJ_ELF
+/* Some special processing for a Nios II ELF file. */
+
+void
+nios2_elf_final_processing (void)
+{
+ elf_elfheader (stdoutput)->e_flags = nios2_architecture;
+}
+#endif
diff --git a/gas/config/tc-nios2.h b/gas/config/tc-nios2.h
index 2e69caf..8b9a7d8 100644
--- a/gas/config/tc-nios2.h
+++ b/gas/config/tc-nios2.h
@@ -118,4 +118,7 @@ extern int nios2_regname_to_dw2regnum (char *regname);
#define tc_cfi_frame_initial_instructions nios2_frame_initial_instructions
extern void nios2_frame_initial_instructions (void);
+#define elf_tc_final_processing nios2_elf_final_processing
+extern void nios2_elf_final_processing (void);
+
#endif /* TC_NIOS2 */
diff --git a/gas/doc/c-nios2.texi b/gas/doc/c-nios2.texi
index 1fb29f2..880346d 100644
--- a/gas/doc/c-nios2.texi
+++ b/gas/doc/c-nios2.texi
@@ -58,6 +58,16 @@ Generate big-endian output.
@item -EL
Generate little-endian output. This is the default.
+@cindex @code{march} command line option, Nios II
+@item -march=@var{architecture}
+This option specifies the target architecture. The assembler issues
+an error message if an attempt is made to assemble an instruction which
+will not execute on the target architecture. The following architecture
+names are recognized:
+@code{r1},
+@code{r2}.
+The default is @code{r1}.
+
@end table
@c man end
diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index 3e7671c..0c03d8e 100644
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,8 @@
+2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
+ Cesar Philippidis <cesar@codesourcery.com>
+
+ * nios2.h (EF_NIOS2_ARCH_R1, EF_NIOS2_ARCH_R2): Define.
+
2015-05-29 Roland McGrath <mcgrathr@google.com>
* common.h (GNU_ABI_TAG_SYLLABLE): New macro.
diff --git a/include/elf/nios2.h b/include/elf/nios2.h
index 429b8ba..07f937f 100644
--- a/include/elf/nios2.h
+++ b/include/elf/nios2.h
@@ -93,4 +93,9 @@ END_RELOC_NUMBERS (R_NIOS2_maxext)
/* Address of _gp. */
#define DT_NIOS2_GP 0x70000002
+/* Processor specific flags for the Elf header e_flags field. */
+
+#define EF_NIOS2_ARCH_R1 0x00000000
+#define EF_NIOS2_ARCH_R2 0x00000001
+
#endif /* _ELF_NIOS2_H */
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index e4f913f..0e611b9 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2015-07-01 Sandra Loosemore <sandra@codesourcery.com>
+ Cesar Philippidis <cesar@codesourcery.com>
+
+ * ld-nios2/mixed1a.d: New.
+ * ld-nios2/mixed1a.s: New.
+ * ld-nios2/mixed1b.d: New.
+ * ld-nios2/mixed1b.s: New.
+ * ld-nios2/nios2.exp: Build the new compatibility tests.
+
2015-06-27 H.J. Lu <hongjiu.lu@intel.com>
* ld-xtensa/tlsbin.rd: Updated.
diff --git a/ld/testsuite/ld-nios2/mixed1a.d b/ld/testsuite/ld-nios2/mixed1a.d
new file mode 100644
index 0000000..0c7d666
--- /dev/null
+++ b/ld/testsuite/ld-nios2/mixed1a.d
@@ -0,0 +1,9 @@
+#name: NIOS2 mixed1a
+#source: mixed1a.s
+#as: -march=r2
+#readelf: -h
+
+ELF Header:
+#...
+ Flags: 0x1
+#...
diff --git a/ld/testsuite/ld-nios2/mixed1a.s b/ld/testsuite/ld-nios2/mixed1a.s
new file mode 100644
index 0000000..8742f1c
--- /dev/null
+++ b/ld/testsuite/ld-nios2/mixed1a.s
@@ -0,0 +1,9 @@
+# Test linking incompatible object file types.
+
+.text
+.global _start
+_start:
+ movhi r2, %hiadj(foo)
+ addi r2, r2, %lo(foo)
+ ldw r2, 0(r2)
+ cmpeq r2, r2, zero
diff --git a/ld/testsuite/ld-nios2/mixed1b.d b/ld/testsuite/ld-nios2/mixed1b.d
new file mode 100644
index 0000000..a702c5a
--- /dev/null
+++ b/ld/testsuite/ld-nios2/mixed1b.d
@@ -0,0 +1,9 @@
+#name: NIOS2 mixed1b
+#source: mixed1b.s
+#as: -march=r1
+#readelf: -h
+
+ELF Header:
+#...
+ Flags: 0x0
+#...
diff --git a/ld/testsuite/ld-nios2/mixed1b.s b/ld/testsuite/ld-nios2/mixed1b.s
new file mode 100644
index 0000000..0d07590
--- /dev/null
+++ b/ld/testsuite/ld-nios2/mixed1b.s
@@ -0,0 +1,3 @@
+# Test linking incompatible object file types.
+
+.comm foo,4,4
diff --git a/ld/testsuite/ld-nios2/nios2.exp b/ld/testsuite/ld-nios2/nios2.exp
index 22080b4..b8ffd49 100644
--- a/ld/testsuite/ld-nios2/nios2.exp
+++ b/ld/testsuite/ld-nios2/nios2.exp
@@ -1,7 +1,31 @@
if { ! [istarget nios2-*-*] } {
- return
+ return
}
foreach test [lsort [glob -nocomplain $srcdir/$subdir/*.d]] {
run_dump_test [file rootname $test]
}
+
+global link_output
+global ld
+
+set test_name "NIOS2 Mixed R1 and R2 objects"
+set test mixed1
+
+if ![ld_assemble $as "-march=r1 $srcdir/$subdir/${test}a.s" tmpdir/${test}a.o] {
+ unresolved "Build mixed1a.o"
+ return
+}
+
+if ![ld_assemble $as "-march=r2 $srcdir/$subdir/${test}b.s" tmpdir/${test}b.o] {
+ unresolved "Build mixed1b.o"
+ return
+}
+
+if { ![ld_simple_link $ld tmpdir/$test "tmpdir/${test}a.o tmpdir/${test}b.o"] } {
+ if [string match "*architecture * is incompatible*" $link_output] {
+ pass "$test_name"
+ } {
+ fail "$test_name"
+ }
+}