* README: Remove claim that MEMORY is not supported.

        * expression.cc (script_exp_function_origin)
        (script_exp_function_length): Move from here to ...
        * script.cc: ... here.
        (script_set_section_region, script_add_memory)
        (script_parse_memory_attr, script_include_directive): New
        functions.
        * script-sections.cc
        (class Memory_region): New class.
        (class Output_section_definition): Add set_memory_region,
        set_section_vma, set_section_lma and get_section_name methods.
        (class Script_Sections): Add add_memory_region,
        find_memory_region, find_memory_region_origin,
        find_memory_region_length and set_memory_region methods.
        Have set_section_addresses method walk the list of set memory
        regions.
        Extend the print methos to display memory regions.
        * script-sections.h: Add prototypes for new methods.
        Add enum for MEMORY region attributes.
        * yyscript.y: Add support for parsing MEMORY regions.
        * script-c.h: Add prototypes for new functions.
        * testsuite/Makefile.am: Add test of MEMORY region functionality.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/memory_test.sh: New script.
        * testsuite/memory_test.s: New assembler source file.
        * testsuite/memory_test.t: New linker script.

5 files changed, 116 insertions, 3 deletions

diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index bd8bfbd..161b86a 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -1779,6 +1779,16 @@ start_lib_test: start_lib_test_main.o libstart_lib_test.a start_lib_test_2.o sta
 libstart_lib_test.a: start_lib_test_1.o
 	$(TEST_AR) rc $@ $^
 
+# Test that MEMORY region support works.
+check_SCRIPTS += memory_test.sh
+check_DATA += memory_test.stdout
+MOSTLYCLEANFILES += memory_test.stdout memory_test memory_test.o
+memory_test: memory_test.s
+	$(COMPILE) -c $< -o memory_test.o
+	$(LINK) -Bgcctestdir/ -nostartfiles -nostdlib -T $(srcdir)/memory_test.t -o $@ memory_test.o
+memory_test.stdout: memory_test
+	$(TEST_READELF) -lS  $< > $@
+
 endif GCC
 endif NATIVE_LINKER
 
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 29caa06..09dc84a 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -312,13 +312,15 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 
 # Test that a strong weak reference remains strong if there is another
 # weak reference in a DSO.
+
+# Test that MEMORY region support works.
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_27 = exclude_libs_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	discard_locals_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	hidden_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	retain_symbols_file_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	no_version_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	strong_ref_weak_def.sh \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.sh
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.sh memory_test.sh
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_28 = exclude_libs_test.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	discard_locals_test.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	discard_locals_relocatable_test1.syms \
@@ -327,7 +329,8 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	retain_symbols_file_test.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	no_version_test.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	strong_ref_weak_def.stdout \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	memory_test.stdout
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_29 = exclude_libs_test.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	libexclude_libs_test_1.a \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	libexclude_libs_test_2.a \
@@ -351,7 +354,9 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	strong_ref_weak_def.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref_1.so \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref_2.so \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	dyn_weak_ref.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	memory_test.stdout memory_test \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	memory_test.o
 @GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@am__append_30 = large
 @GCC_FALSE@large_DEPENDENCIES =
 @MCMODEL_MEDIUM_FALSE@large_DEPENDENCIES =
@@ -3282,6 +3287,8 @@ strong_ref_weak_def.sh.log: strong_ref_weak_def.sh
 	@p='strong_ref_weak_def.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 dyn_weak_ref.sh.log: dyn_weak_ref.sh
 	@p='dyn_weak_ref.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+memory_test.sh.log: memory_test.sh
+	@p='memory_test.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 split_i386.sh.log: split_i386.sh
 	@p='split_i386.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
 split_x86_64.sh.log: split_x86_64.sh
@@ -4476,6 +4483,11 @@ uninstall-am:
 @GCC_TRUE@@NATIVE_LINKER_TRUE@		-Wl,--start-lib start_lib_test_2.o start_lib_test_3.o -Wl,--end-lib
 @GCC_TRUE@@NATIVE_LINKER_TRUE@libstart_lib_test.a: start_lib_test_1.o
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_AR) rc $@ $^
+@GCC_TRUE@@NATIVE_LINKER_TRUE@memory_test: memory_test.s
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(COMPILE) -c $< -o memory_test.o
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(LINK) -Bgcctestdir/ -nostartfiles -nostdlib -T $(srcdir)/memory_test.t -o $@ memory_test.o
+@GCC_TRUE@@NATIVE_LINKER_TRUE@memory_test.stdout: memory_test
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_READELF) -lS  $< > $@
 @DEFAULT_TARGET_I386_TRUE@split_i386_1.o: split_i386_1.s
 @DEFAULT_TARGET_I386_TRUE@	$(TEST_AS) -o $@ $<
 @DEFAULT_TARGET_I386_TRUE@split_i386_2.o: split_i386_2.s
diff --git a/gold/testsuite/memory_test.s b/gold/testsuite/memory_test.s
new file mode 100644
index 0000000..dbb63ea
--- /dev/null
+++ b/gold/testsuite/memory_test.s
@@ -0,0 +1,14 @@
+	.section .sec0, "a"
+	.word 0
+
+	.section .sec1, "a"
+	.word 0x11
+
+	.section .sec2, "a"
+	.word 0x22
+
+	.section .sec3, "a"
+	.word 0x33
+
+	.section .sec4, "a"
+	.word 0x44
diff --git a/gold/testsuite/memory_test.sh b/gold/testsuite/memory_test.sh
new file mode 100755
index 0000000..8a223ad
--- /dev/null
+++ b/gold/testsuite/memory_test.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+
+# memory_test.sh -- test MEMORY regions.
+
+# Copyright 2010 Free Software Foundation, Inc.
+# Written by Nick Clifton  <nickc@redhat.com>
+
+# This file is part of gold.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+
+check()
+{
+    file=$1
+    pattern=$2
+    found=`grep "$pattern" $file`
+    if test -z "$found"; then
+        echo "pattern \"$pattern\" not found in file $file."
+	echo $found
+        exit 1
+    fi
+}
+
+check memory_test.stdout \
+  "  LOAD           0x001000 0x00000000 0x00000000 0x00002 0x00002 R   0x1000"
+check memory_test.stdout \
+  "  LOAD           0x00112c 0x00001000 0x0000012c 0x00002 0x00002 R   0x1000"
+check memory_test.stdout \
+  "  LOAD           0x002000 0x00005000 0x00005000 0x00002 0x00002 R   0x1000"
+check memory_test.stdout \
+  "  LOAD           0x00203c 0x00004000 0x0000603c 0x0002a 0x0002a R E 0x1000"
+
+
+exit 0
diff --git a/gold/testsuite/memory_test.t b/gold/testsuite/memory_test.t
new file mode 100644
index 0000000..7bcb877
--- /dev/null
+++ b/gold/testsuite/memory_test.t
@@ -0,0 +1,29 @@
+MEMORY
+{
+  region1        : ORIGIN = 0x1000, LENGTH = 0x1000 ,
+  region2 (r)    :    org = 0x2000, len    =    300
+  region3 (wx)   :      o = 0x4000, l      =      4
+  region4 (!r)   : o = 0x6000 + 60, len    = 0x30 * 0x6
+}
+
+SECTIONS
+{
+  .sec0 : { *(*.sec0) }
+  
+  .sec1 ORIGIN (region1) : AT(LENGTH (region2)) { *(*.sec1) }
+
+  fred = ORIGIN (region1) + LENGTH (region1) ;
+  
+  .sec2 : { *(*.sec2) } > region3 AT> region4
+
+  .sec3 0x5000 : { *(*.sec3) }
+
+  /* In theory we could put:
+
+     /DISCARD/ : { *(*) }
+
+     here as we do not need any other sections for this test.
+     In practice however doing so breaks GOLD as it relies upon
+     being able to create/find various other sections such as
+     .dynamic, .dynsym and .gnu.hash.  */
+}