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-rw-r--r--gold/ChangeLog34
-rw-r--r--gold/expression.cc61
-rw-r--r--gold/script-c.h5
-rw-r--r--gold/script-sections.cc47
-rw-r--r--gold/script-sections.h13
-rw-r--r--gold/script.cc8
-rw-r--r--gold/testsuite/Makefile.am26
-rw-r--r--gold/testsuite/Makefile.in29
-rwxr-xr-xgold/testsuite/script_test_6.sh43
-rw-r--r--gold/testsuite/script_test_6.t41
-rwxr-xr-xgold/testsuite/script_test_7.sh43
-rw-r--r--gold/testsuite/script_test_7.t41
-rwxr-xr-xgold/testsuite/script_test_8.sh44
-rw-r--r--gold/yyscript.y4
14 files changed, 425 insertions, 14 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index a18cf54..6358191 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,39 @@
2009-10-16 Doug Kwan <dougkwan@google.com>
+ * expression.cc (class Segment_start_expression): New class definition.
+ (Segment_start_expression::value): New method definition.
+ (script_exp_function_segment_start): Return a new
+ Segment_start_expression.
+ * gold/script-c.h (script_saw_segment_start_expression): New function
+ prototype.
+ * script-sections.cc (Script_sections::Script_sections): Initialize
+ SAW_SEGMENT_START_EXPRESSION_ to false.
+ (Script_sections::set_section_addresses): Use -Ttext, -Tdata
+ and -Tbbs options to specify section addresses if given in
+ command line and no SEGMENT_START expression is seen in a script.
+ * script-sections.h (Script_sections::saw_segment_start_expression,
+ Script_sections::set_saw_segment_start_expression): New method
+ definition.
+ (Script_sections::saw_segment_start_expression_): New data member
+ declaration.
+ * script.cc (script_saw_segment_start_expression): New function.
+ * yyscript.y (SEGMENT_START): Call script_saw_segment_start_expression.
+ * testsuite/Makefile.am (check_SCRIPTS): Add script_test_6.sh,
+ script_test_7.sh and script_test_8.sh.
+ (check_DATA): Add script_test_6.stdout, script_test_7.stdout and
+ script_test_8.stdout.
+ (MOSTLYCLEANFILES): Add script_test_6, script_test_7 and script_test_8.
+ (script_test_6, script_test_6.stdout, script_test_7,
+ script_test_7.stdout, script_test_8, script_test_8.stdout): New rules.
+ * Makefile.in: Regenerate.
+ * testsuite/script_test_6.sh: New file.
+ * testsuite/script_test_6.t: Same.
+ * testsuite/script_test_7.sh: Same.
+ * testsuite/script_test_7.t: Same.
+ * testsuite/script_test_8.sh: Same.
+
+2009-10-16 Doug Kwan <dougkwan@google.com>
+
* output.cc (Output_segment::set_section_list_address): Cast
expressions to unsigned long long type to avoid format warnings.
diff --git a/gold/expression.cc b/gold/expression.cc
index 25f3ac3..853a698 100644
--- a/gold/expression.cc
+++ b/gold/expression.cc
@@ -1113,17 +1113,62 @@ script_exp_function_sizeof_headers()
return new Sizeof_headers_expression();
}
-// In the GNU linker SEGMENT_START basically returns the value for
-// -Ttext, -Tdata, or -Tbss. We could implement this by copying the
-// values from General_options to Parameters. But I doubt that
-// anybody actually uses it. The point of it for the GNU linker was
-// because -Ttext set the address of the .text section rather than the
-// text segment. In gold -Ttext sets the text segment address anyhow.
+// SEGMENT_START.
+
+class Segment_start_expression : public Unary_expression
+{
+ public:
+ Segment_start_expression(const char* segment_name, size_t segment_name_len,
+ Expression* default_value)
+ : Unary_expression(default_value),
+ segment_name_(segment_name, segment_name_len)
+ { }
+
+ uint64_t
+ value(const Expression_eval_info*);
+
+ void
+ print(FILE* f) const
+ {
+ fprintf(f, "SEGMENT_START(\"%s\", ", this->segment_name_.c_str());
+ this->arg_print(f);
+ fprintf(f, ")");
+ }
+
+ private:
+ std::string segment_name_;
+};
+
+uint64_t
+Segment_start_expression::value(const Expression_eval_info* eei)
+{
+ // Check for command line overrides.
+ if (parameters->options().user_set_Ttext()
+ && this->segment_name_ == ".text")
+ return parameters->options().Ttext();
+ else if (parameters->options().user_set_Tdata()
+ && this->segment_name_ == ".data")
+ return parameters->options().Tdata();
+ else if (parameters->options().user_set_Tbss()
+ && this->segment_name_ == ".bss")
+ return parameters->options().Tbss();
+ else
+ {
+ Output_section* dummy;
+ uint64_t ret = this->arg_value(eei, &dummy);
+ // Force the value to be absolute.
+ *eei->result_section_pointer = NULL;
+ return ret;
+ }
+}
extern "C" Expression*
-script_exp_function_segment_start(const char*, size_t, Expression*)
+script_exp_function_segment_start(const char* segment_name,
+ size_t segment_name_len,
+ Expression* default_value)
{
- gold_fatal(_("SEGMENT_START not implemented"));
+ return new Segment_start_expression(segment_name, segment_name_len,
+ default_value);
}
// Functions for memory regions. These can not be implemented unless
diff --git a/gold/script-c.h b/gold/script-c.h
index 37016b0..a646bda 100644
--- a/gold/script-c.h
+++ b/gold/script-c.h
@@ -389,6 +389,11 @@ script_data_segment_align(void* closure);
extern void
script_data_segment_relro_end(void* closure);
+/* Record the fact that a SEGMENT_START expression is seen. */
+
+extern void
+script_saw_segment_start_expression(void* closure);
+
/* Called by the bison parser for expressions. */
extern Expression_ptr
diff --git a/gold/script-sections.cc b/gold/script-sections.cc
index a541e9a..8fb9a73 100644
--- a/gold/script-sections.cc
+++ b/gold/script-sections.cc
@@ -2487,7 +2487,8 @@ Script_sections::Script_sections()
orphan_section_placement_(NULL),
data_segment_align_start_(),
saw_data_segment_align_(false),
- saw_relro_end_(false)
+ saw_relro_end_(false),
+ saw_segment_start_expression_(false)
{
}
@@ -2850,10 +2851,52 @@ Script_sections::set_section_addresses(Symbol_table* symtab, Layout* layout)
// For a relocatable link, we implicitly set dot to zero.
uint64_t dot_value = 0;
uint64_t load_address = 0;
+
+ // Check to see if we want to use any of -Ttext, -Tdata and -Tbss options
+ // to set section addresses. If the script has any SEGMENT_START
+ // expression, we do not set the section addresses.
+ bool use_tsection_options =
+ (!this->saw_segment_start_expression_
+ && (parameters->options().user_set_Ttext()
+ || parameters->options().user_set_Tdata()
+ || parameters->options().user_set_Tbss()));
+
for (Sections_elements::iterator p = this->sections_elements_->begin();
p != this->sections_elements_->end();
++p)
- (*p)->set_section_addresses(symtab, layout, &dot_value, &load_address);
+ {
+ Output_section* os = (*p)->get_output_section();
+
+ // Handle -Ttext, -Tdata and -Tbss options. We do this by looking for
+ // the special sections by names and doing dot assignments.
+ if (use_tsection_options
+ && os != NULL
+ && (os->flags() & elfcpp::SHF_ALLOC) != 0)
+ {
+ uint64_t new_dot_value = dot_value;
+
+ if (parameters->options().user_set_Ttext()
+ && strcmp(os->name(), ".text") == 0)
+ new_dot_value = parameters->options().Ttext();
+ else if (parameters->options().user_set_Tdata()
+ && strcmp(os->name(), ".data") == 0)
+ new_dot_value = parameters->options().Tdata();
+ else if (parameters->options().user_set_Tbss()
+ && strcmp(os->name(), ".bss") == 0)
+ new_dot_value = parameters->options().Tbss();
+
+ // Update dot and load address if necessary.
+ if (new_dot_value < dot_value)
+ gold_error(_("dot may not move backward"));
+ else if (new_dot_value != dot_value)
+ {
+ dot_value = new_dot_value;
+ load_address = new_dot_value;
+ }
+ }
+
+ (*p)->set_section_addresses(symtab, layout, &dot_value, &load_address);
+ }
if (this->phdrs_elements_ != NULL)
{
diff --git a/gold/script-sections.h b/gold/script-sections.h
index b326eae..c0d1d08 100644
--- a/gold/script-sections.h
+++ b/gold/script-sections.h
@@ -191,6 +191,17 @@ class Script_sections
void
release_segments();
+ // Whether we ever saw a SEGMENT_START expression, the presence of which
+ // changes the behaviour of -Ttext, -Tdata and -Tbss options.
+ bool
+ saw_segment_start_expression() const
+ { return this->saw_segment_start_expression_; }
+
+ // Set the flag which indicates whether we saw a SEGMENT_START expression.
+ void
+ set_saw_segment_start_expression(bool value)
+ { this->saw_segment_start_expression_ = value; }
+
// Print the contents to the FILE. This is for debugging.
void
print(FILE*) const;
@@ -253,6 +264,8 @@ class Script_sections
bool saw_data_segment_align_;
// Whether we have seen DATA_SEGMENT_RELRO_END.
bool saw_relro_end_;
+ // Whether we have seen SEGMENT_START.
+ bool saw_segment_start_expression_;
};
} // End namespace gold.
diff --git a/gold/script.cc b/gold/script.cc
index d0ffe41..8839213 100644
--- a/gold/script.cc
+++ b/gold/script.cc
@@ -2739,3 +2739,11 @@ script_phdr_string_to_type(void* closurev, const char* name, size_t namelen)
yyerror(closurev, _("unknown PHDR type (try integer)"));
return elfcpp::PT_NULL;
}
+
+extern "C" void
+script_saw_segment_start_expression(void* closurev)
+{
+ Parser_closure* closure = static_cast<Parser_closure*>(closurev);
+ Script_sections* ss = closure->script_options()->script_sections();
+ ss->set_saw_segment_start_expression(true);
+}
diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index 09d7325..6fa1e18 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -1009,6 +1009,32 @@ script_test_5: script_test_5.o gcctestdir/ld $(srcdir)/script_test_5.t
script_test_5.stdout: script_test_5
$(TEST_READELF) -SW script_test_5 > script_test_5.stdout
+check_SCRIPTS += script_test_6.sh
+check_DATA += script_test_6.stdout
+MOSTLYCLEANFILES += script_test_6
+script_test_6: basic_test.o gcctestdir/ld $(srcdir)/script_test_6.t
+ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_6.t \
+ -Wl,-Ttext=0x10001000 -Wl,-Tdata=0x10200000 -Wl,-Tbss=0x10400000
+script_test_6.stdout: script_test_6
+ $(TEST_READELF) -SlW script_test_6 > script_test_6.stdout
+
+check_SCRIPTS += script_test_7.sh
+check_DATA += script_test_7.stdout
+MOSTLYCLEANFILES += script_test_7
+script_test_7: basic_test.o gcctestdir/ld $(srcdir)/script_test_7.t
+ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_7.t
+script_test_7.stdout: script_test_7
+ $(TEST_READELF) -SlW script_test_7 > script_test_7.stdout
+
+check_SCRIPTS += script_test_8.sh
+check_DATA += script_test_8.stdout
+MOSTLYCLEANFILES += script_test_8
+script_test_8: basic_test.o gcctestdir/ld $(srcdir)/script_test_7.t
+ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_7.t \
+ -Wl,-Ttext=0x20001000 -Wl,-Tdata=0x20200000 -Wl,-Tbss=0x20400000
+script_test_8.stdout: script_test_8
+ $(TEST_READELF) -SlW script_test_8 > script_test_8.stdout
+
# Test --dynamic-list, --dynamic-list-data, --dynamic-list-cpp-new,
# and --dynamic-list-cpp-typeinfo
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 3f5459f..193888a 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -67,7 +67,10 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_matching_test.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_3.sh \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_4.sh \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_5.sh dynamic_list.sh
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_5.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_6.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_7.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_8.sh dynamic_list.sh
# Create the data files that debug_msg.sh analyzes.
@@ -92,6 +95,9 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_3.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_4.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_5.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_6.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_7.stdout \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_8.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list.stdout
@GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_3 = gc_comdat_test \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ gc_tls_test icf_test \
@@ -242,9 +248,10 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_matching_test.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_3.stdout \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_4 script_test_5 \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list dynamic_list.stdout \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ libthin1.a libthin3.a \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ libthinall.a \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_6 script_test_7 \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_8 dynamic_list \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ dynamic_list.stdout libthin1.a \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ libthin3.a libthinall.a \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ alt/thin_archive_test_2.o \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ alt/thin_archive_test_4.o \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ alt/libthin2.a alt/libthin4.a
@@ -2972,6 +2979,20 @@ uninstall-am:
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ script_test_5.o -T $(srcdir)/script_test_5.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_5.stdout: script_test_5
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SW script_test_5 > script_test_5.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_6: basic_test.o gcctestdir/ld $(srcdir)/script_test_6.t
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_6.t \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,-Ttext=0x10001000 -Wl,-Tdata=0x10200000 -Wl,-Tbss=0x10400000
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_6.stdout: script_test_6
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SlW script_test_6 > script_test_6.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_7: basic_test.o gcctestdir/ld $(srcdir)/script_test_7.t
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_7.t
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_7.stdout: script_test_7
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SlW script_test_7 > script_test_7.stdout
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_8: basic_test.o gcctestdir/ld $(srcdir)/script_test_7.t
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ basic_test.o -T $(srcdir)/script_test_7.t \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,-Ttext=0x20001000 -Wl,-Tdata=0x20200000 -Wl,-Tbss=0x20400000
+@GCC_TRUE@@NATIVE_LINKER_TRUE@script_test_8.stdout: script_test_8
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SlW script_test_8 > script_test_8.stdout
@GCC_TRUE@@NATIVE_LINKER_TRUE@dynamic_list: basic_test.o gcctestdir/ld $(srcdir)/dynamic_list.t
@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ basic_test.o \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,--dynamic-list $(srcdir)/dynamic_list.t \
diff --git a/gold/testsuite/script_test_6.sh b/gold/testsuite/script_test_6.sh
new file mode 100755
index 0000000..bbc96d8
--- /dev/null
+++ b/gold/testsuite/script_test_6.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# script_test_6.sh -- test for -Ttext, -Tdata and -Tbss with a script.
+
+# Copyright 2009 Free Software Foundation, Inc.
+# Written by Doug Kwan <dougkwan@google.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.
+
+# This file goes with script_test_4.t, which is a linker script which
+# starts the program at an unaligned address.
+
+check()
+{
+ if ! grep -q "$2" "$1"
+ then
+ echo "Did not find expected section in $1:"
+ echo " $2"
+ echo ""
+ echo "Actual output below:"
+ cat "$1"
+ exit 1
+ fi
+}
+
+check script_test_6.stdout "\\.text[ ]*PROGBITS[ ]*0*10001000"
+check script_test_6.stdout "\\.data[ ]*PROGBITS[ ]*0*10200000"
+check script_test_6.stdout "\\.bss[ ]*NOBITS[ ]*0*10400000"
diff --git a/gold/testsuite/script_test_6.t b/gold/testsuite/script_test_6.t
new file mode 100644
index 0000000..9676371
--- /dev/null
+++ b/gold/testsuite/script_test_6.t
@@ -0,0 +1,41 @@
+/* script_test_5.t -- linker script test 5 for gold
+
+ Copyright 2009 Free Software Foundation, Inc.
+ Written by Cary Coutant <ccoutant@google.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. */
+
+/* We won't try to run this program, just ensure that it links
+ as expected. */
+
+SECTIONS
+{
+ . = 0x10000000;
+
+ /* With luck this will be enough to get the program working. */
+ .interp : { *(.interp) }
+ .text : { *(.text .text.*) }
+ .rodata : { *(.rodata .rodata.*) }
+ . += 0x100000;
+ . = ALIGN(0x100);
+ .dynamic : { *(.dynamic) }
+ .data : { *(.data) }
+ . += 0x100000;
+ . = ALIGN(0x100);
+ .bss : { *(.bss) }
+}
diff --git a/gold/testsuite/script_test_7.sh b/gold/testsuite/script_test_7.sh
new file mode 100755
index 0000000..982a1c1
--- /dev/null
+++ b/gold/testsuite/script_test_7.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# script_test_7.sh -- test for SEGMENT_START expressions.
+
+# Copyright 2009 Free Software Foundation, Inc.
+# Written by Doug Kwan <dougkwan@google.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.
+
+# This file goes with script_test_4.t, which is a linker script which
+# starts the program at an unaligned address.
+
+check()
+{
+ if ! grep -q "$2" "$1"
+ then
+ echo "Did not find expected section in $1:"
+ echo " $2"
+ echo ""
+ echo "Actual output below:"
+ cat "$1"
+ exit 1
+ fi
+}
+
+check script_test_7.stdout "\\.interp[ ]*PROGBITS[ ]*0*10000100"
+check script_test_7.stdout "\\.data[ ]*PROGBITS[ ]*0*10200000"
+check script_test_7.stdout "\\.bss[ ]*NOBITS[ ]*0*10400..."
diff --git a/gold/testsuite/script_test_7.t b/gold/testsuite/script_test_7.t
new file mode 100644
index 0000000..a4c4973
--- /dev/null
+++ b/gold/testsuite/script_test_7.t
@@ -0,0 +1,41 @@
+/* script_test_5.t -- linker script test 5 for gold
+
+ Copyright 2009 Free Software Foundation, Inc.
+ Written by Cary Coutant <ccoutant@google.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. */
+
+/* We won't try to run this program, just ensure that it links
+ as expected. */
+
+SECTIONS
+{
+ . = SEGMENT_START(".text", 0x10000100);
+
+ /* With luck this will be enough to get the program working. */
+ .interp : { *(.interp) }
+ .text : { *(.text .text.*) }
+ .rodata : { *(.rodata .rodata.*) }
+ .dynamic : { *(.dynamic) }
+
+ . = SEGMENT_START(".data", 0x10200000);
+ .data : { *(.data) }
+
+ . = SEGMENT_START(".bss", 0x10400000);
+ .bss : { *(.bss) }
+}
diff --git a/gold/testsuite/script_test_8.sh b/gold/testsuite/script_test_8.sh
new file mode 100755
index 0000000..83e8e72
--- /dev/null
+++ b/gold/testsuite/script_test_8.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+# script_test_8.sh -- test for SEGMENT_START expressions with
+# -Ttext, -Tdata and -Tbss in a script.
+
+# Copyright 2009 Free Software Foundation, Inc.
+# Written by Doug Kwan <dougkwan@google.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.
+
+# This file goes with script_test_4.t, which is a linker script which
+# starts the program at an unaligned address.
+
+check()
+{
+ if ! grep -q "$2" "$1"
+ then
+ echo "Did not find expected section in $1:"
+ echo " $2"
+ echo ""
+ echo "Actual output below:"
+ cat "$1"
+ exit 1
+ fi
+}
+
+check script_test_8.stdout "\\.interp[ ]*PROGBITS[ ]*0*20001000"
+check script_test_8.stdout "\\.data[ ]*PROGBITS[ ]*0*20200000"
+check script_test_8.stdout "\\.bss[ ]*NOBITS[ ]*0*2040...."
diff --git a/gold/yyscript.y b/gold/yyscript.y
index 0d52882..81c136a 100644
--- a/gold/yyscript.y
+++ b/gold/yyscript.y
@@ -861,6 +861,10 @@ exp:
| SEGMENT_START '(' string ',' exp ')'
{
$$ = script_exp_function_segment_start($3.value, $3.length, $5);
+ /* We need to take note of any SEGMENT_START expressions
+ because they change the behaviour of -Ttext, -Tdata and
+ -Tbss options. */
+ script_saw_segment_start_expression(closure);
}
| ASSERT_K '(' exp ',' string ')'
{ $$ = script_exp_function_assert($3, $5.value, $5.length); }
generated by cgit v1.1 at 2024-07-12 22:33:10 +0000