Add Visium support to ld

ld/
	* configure.tgt: Add Visium support.
	* Makefile.am (ALL_EMULATION_SOURCES): Add eelf32visium.c.
	(eelf32visium.c): New rule.
	* Makefile.in: Regenerate.
	* emulparams/elf32visium.sh: New file.
	* scripttempl/visium.sc: Likewise.
ld/testsuite/
	* lib/ld-lib.exp (check_shared_lib_support): Return 0 for Visium.
	* ld-visium/: New directory.

1 files changed, 181 insertions, 0 deletions

diff --git a/ld/scripttempl/visium.sc b/ld/scripttempl/visium.sc
new file mode 100644
index 0000000..60338b1
--- /dev/null
+++ b/ld/scripttempl/visium.sc
@@ -0,0 +1,181 @@
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# 
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.
+
+#  Many sections come in three flavours.  There is the 'real' section,
+#  like ".data".  Then there are the per-procedure or per-variable
+#  sections, generated by -ffunction-sections and -fdata-sections in GCC,
+#  and useful for --gc-sections, which for a variable "foo" might be
+#  ".data.foo".  Then there are the linkonce sections, for which the linker
+#  eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
+#  The exact correspondences are:
+#
+#  Section	Linkonce section
+#  .text	.gnu.linkonce.t.foo
+#  .rodata	.gnu.linkonce.r.foo
+#  .data	.gnu.linkonce.d.foo
+#  .bss		.gnu.linkonce.b.foo
+#  .sdata	.gnu.linkonce.s.foo
+#  .sbss	.gnu.linkonce.sb.foo
+#  .sdata2	.gnu.linkonce.s2.foo
+#  .sbss2	.gnu.linkonce.sb2.foo
+#  .debug_info	.gnu.linkonce.wi.foo
+#  .tdata	.gnu.linkonce.td.foo
+#  .tbss	.gnu.linkonce.tb.foo
+#  .lrodata	.gnu.linkonce.lr.foo
+#  .ldata	.gnu.linkonce.l.foo
+#  .lbss	.gnu.linkonce.lb.foo
+#
+#  Each of these can also have corresponding .rel.* and .rela.* sections.
+
+test -z "$ENTRY" && ENTRY=__start
+cat <<EOF
+OUTPUT_FORMAT("${OUTPUT_FORMAT}")
+
+ENTRY(${ENTRY})
+
+/* Start and end of main stack. Assumes 256K of RAM.  */
+${RELOCATING+ _estack = 0xe0040000 - 4;}
+${RELOCATING+ _sstack = 0xe0040000 - 64K;}
+
+/* End of heap.  */
+${RELOCATING+ _eheap = _sstack - 4;}
+
+
+MEMORY
+{
+  init    : ORIGIN = 0x00000000, LENGTH = 0x0003fffc
+  scr     : ORIGIN = 0x0003fffc, LENGTH = 0x00000004
+  rom     : ORIGIN = 0x00044000, LENGTH = 0x1ffbc000
+  ram     : ORIGIN = 0xe0000000, LENGTH = 0x10000000
+  saferam : ORIGIN = 0xf0000000, LENGTH = 0x10000000
+}
+
+
+SECTIONS
+{
+  .init ${RELOCATING-0} : {
+    KEEP (*(.init))
+    KEEP (*(.fini))
+    ${RELOCATING+ _einit  =  .;}
+  } ${RELOCATING+ > init}
+
+  .text ${RELOCATING-0} : {
+    ${RELOCATING+ _ftext  =  .;}
+    *(.text)
+    ${RELOCATING+*(.text.*)}
+    ${RELOCATING+*(.gnu.linkonce.t.*)}
+    ${RELOCATING+ _etext  =  .;}
+  } ${RELOCATING+ > rom}
+
+  .ctors ${RELOCATING-0} : {
+    ${CONSTRUCTING+ . = ALIGN(4);}
+    ${CONSTRUCTING+ __CTOR_LIST__ = .;}
+    /* gcc uses crtbegin.o to find the start of
+       the constructors, so we make sure it is
+       first.  Because this is a wildcard, it
+       doesn't matter if the user does not
+       actually link against crtbegin.o; the
+       linker won't look for a file to match a
+       wildcard.  The wildcard also means that it
+       doesn't matter which directory crtbegin.o
+       is in.  */
+
+    KEEP (*crtbegin*.o(.ctors))
+
+    /* We don't want to include the .ctor section from
+       from the crtend.o file until after the sorted ctors.
+       The .ctor section from the crtend file contains the
+       end of ctors marker and it must be last.  */
+
+    KEEP (*(EXCLUDE_FILE (*crtend*.o) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*(.ctors))
+    ${CONSTRUCTING+ __CTOR_END__ = .;}
+  } ${RELOCATING+ > rom}
+
+  .dtors ${RELOCATING-0} : {
+    ${CONSTRUCTING+ __DTOR_LIST__ = .;}
+    KEEP (*crtbegin*.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend*.o) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+    ${CONSTRUCTING+ __DTOR_END__ = .;}
+  } ${RELOCATING+ > rom}
+  .rodata ${RELOCATING-0} : {
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ _srdata  =  .;}
+    *(.rdata)
+    *(.rodata)
+    ${RELOCATING+*(.rodata.*)}
+    ${RELOCATING+*(.gnu.linkonce.r.*)}
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ _erdata  =  .;}
+  } ${RELOCATING+ > rom}
+
+  .eh_frame ${RELOCATING-0} :
+  {
+    ${RELOCATING+PROVIDE (__eh_frame_begin = .);}
+    *(.eh_frame)
+    ${RELOCATING+ LONG (0);}
+    ${RELOCATING+PROVIDE (__eh_frame_end = .);}
+  } ${RELOCATING+ > rom}
+  .gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) } ${RELOCATING+ > rom}
+  .jcr ${RELOCATING-0} : { *(.jcr) } ${RELOCATING+ > rom}
+
+  .data ${RELOCATING-0} : {
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ _sdata  =  .;}
+    *(.data)
+    ${RELOCATING+*(.data.*)}
+    ${RELOCATING+*(.gnu.linkonce.d.*)}
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ _edata  =  .;}
+  } ${RELOCATING+ > ram}
+  .bss ${RELOCATING-0} : { 					
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ __bss_start = .;}
+    *(.bss)
+    ${RELOCATING+*(.bss.*)}
+    ${RELOCATING+*(.gnu.linkonce.b.*)}
+    *(COMMON)
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ __bss_end = .;}
+    ${RELOCATING+ _sheap = .;}
+  } ${RELOCATING+ > ram}
+
+  saferam ${RELOCATING-0} : {
+    *(saferam)
+    ${RELOCATING+ . = ALIGN(4);}
+    ${RELOCATING+ unitidentry = .;}
+  } ${RELOCATING+ > saferam}
+
+  /* Stabs debugging sections.  */
+  .stab          0 : { *(.stab) }
+  .stabstr       0 : { *(.stabstr) }
+  .stab.excl     0 : { *(.stab.excl) }
+  .stab.exclstr  0 : { *(.stab.exclstr) }
+  .stab.index    0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+
+  .comment       0 : { *(.comment) }
+
+EOF
+
+. $srcdir/scripttempl/DWARF.sc
+
+cat <<EOF
+}
+
+/* Provide a default address for the simulated file-I/O device.  */
+PROVIDE (_sim_fileio_register = 0x2fff0000);
+
+/* Provide a default address for the simulated command line device.  */
+PROVIDE (_sim_cmdline_header = 0x2ffe0000);
+
+/* Provide a default address for the simulated 1 MHz clock.  */
+PROVIDE (_sim_clock = 0x20002100);
+
+EOF