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-rw-r--r--gold/ChangeLog75
-rw-r--r--gold/Makefile.in2
-rw-r--r--gold/arm.cc6
-rw-r--r--gold/common.cc69
-rwxr-xr-xgold/configure22
-rw-r--r--gold/configure.ac3
-rw-r--r--gold/i386.cc6
-rw-r--r--gold/layout.cc101
-rw-r--r--gold/object.cc2
-rw-r--r--gold/output.cc69
-rw-r--r--gold/output.h44
-rw-r--r--gold/powerpc.cc24
-rw-r--r--gold/resolve.cc2
-rw-r--r--gold/sparc.cc12
-rw-r--r--gold/symtab.cc36
-rw-r--r--gold/symtab.h34
-rw-r--r--gold/target.h52
-rw-r--r--gold/testsuite/Makefile.am8
-rw-r--r--gold/testsuite/Makefile.in68
-rw-r--r--gold/testsuite/large.c59
-rw-r--r--gold/testsuite/testfile.cc6
-rw-r--r--gold/x86_64.cc20
22 files changed, 622 insertions, 98 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 02ee8fa..308441a 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,78 @@
+2009-06-21 Ian Lance Taylor <ian@airs.com>
+
+ * layout.cc (Layout::make_output_section): Call
+ Target::new_output_section.
+ (Layout::attach_allocated_section_to_segment): Put large section
+ sections in a separate load segment with the large segment flag
+ set.
+ (Layout::segment_precedes): Sort large data segments after other
+ load segments.
+ (align_file_offset): New static function.
+ (Layout::set_segment_offsets): Use align_file_offset.
+ * output.h (class Output_section): Add is_small_section_ and
+ is_large_section_ fields.
+ (Output_section::is_small_section): New function.
+ (Output_section::set_is_small_section): New function.
+ (Output_section::is_large_section): New function.
+ (Output_section::set_is_large_section): New function.
+ (Output_section::is_large_data_section): New function.
+ (class Output_segment): Add is_large_data_segment_ field.
+ (Output_segment::is_large_data_segment): New function.
+ (Output_segment::set_is_large_data_segment): New function.
+ * output.cc (Output_section::Output_section): Initialize new
+ fields.
+ (Output_segment::Output_segment): Likewise.
+ (Output_segment::add_output_section): Add assertion that large
+ data sections always go in large data segments. Force small data
+ sections to the end of the list of data sections. Force small BSS
+ sections to the start of the list of BSS sections. For large BSS
+ sections to the end of the list of BSS sections.
+ * symtab.h (class Symbol): Declare is_common_shndx.
+ (Symbol::is_defined): Check Symbol::is_common_shndx.
+ (Symbol::is_common): Likewise.
+ (class Symbol_table): Define enum Commons_section_type. Update
+ declarations. Add small_commons_ and large_commons_ fields.
+ * symtab.cc (Symbol::is_common_shndx): New function.
+ (Symbol_table::Symbol_table): Initialize new fields.
+ (Symbol_table::add_from_object): Put small and large common
+ symbols in the right list.
+ (Symbol_table::sized_finalized_symbol): Check
+ Symbol::is_common_shndx.
+ (Symbol_table::sized_write_globals): Likewise.
+ * common.cc (Symbol_table::do_allocate_commons): Allocate new
+ common symbol lists. Don't call do_allocate_commons_list if the
+ list is empty.
+ (Symbol_table::do_allocate_commons_list): Remove is_tls
+ parameter. Add comons_section_type parameter. Change all
+ callers. Handle small and large common symbols.
+ * object.cc (Sized_relobj::do_finalize_local_symbols): Check
+ Symbol::is_common_shndx.
+ * resolve.cc (symbol_to_bits): Likewise.
+ * target.h (Target::small_common_shndx): New function.
+ (Target::small_common_section_flags): New function.
+ (Target::large_common_shndx): New function.
+ (Target::large_common_section_flags): New function.
+ (Target::new_output_section): New function.
+ (Target::Target_info): Add small_common_shndx, large_common_shndx,
+ small_common_section_flags, and large_common_section_flags
+ fields.
+ (Target::do_new_output_section): New virtual function.
+ * arm.cc (Target_arm::arm_info): Initialize new fields.
+ * i386.cc (Target_i386::i386_info): Likewise.
+ * powerpc.cc (Target_powerpc::powerpc_info) [all versions]:
+ Likewise.
+ * sparc.c (Target_sparc::sparc_info) [all versions]: Likewise.
+ * x86_64.cc (Target_x86_64::x86_64_info): Likewise.
+ (Target_x86_64::do_new_output_section): New function.
+ * configure.ac: Define conditional MCMODEL_MEDIUM.
+ * testsuite/Makefile.am (check_PROGRAMS): Add large.
+ (large_SOURCES, large_CFLAGS, large_DEPENDENCIES): Define.
+ (large_LDFLAGS): Define.
+ * testsuite/large.c: New file.
+ * testsuite/testfile.cc (Target_test::test_target_info):
+ Initialize new fields.
+ * configure, testsuite/Makefile.in: Rebuild.
+
2009-06-05 Doug Kwan <dougkwan@google.com>
* Makefile.am (CCFILES): Add target.cc.
diff --git a/gold/Makefile.in b/gold/Makefile.in
index 0a3245f..a32de6b 100644
--- a/gold/Makefile.in
+++ b/gold/Makefile.in
@@ -213,6 +213,8 @@ MAINT = @MAINT@
MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
MAKEINFO = @MAKEINFO@
+MCMODEL_MEDIUM_FALSE = @MCMODEL_MEDIUM_FALSE@
+MCMODEL_MEDIUM_TRUE = @MCMODEL_MEDIUM_TRUE@
MKINSTALLDIRS = @MKINSTALLDIRS@
MSGFMT = @MSGFMT@
MSGMERGE = @MSGMERGE@
diff --git a/gold/arm.cc b/gold/arm.cc
index 76538de..491f254 100644
--- a/gold/arm.cc
+++ b/gold/arm.cc
@@ -449,7 +449,11 @@ const Target::Target_info Target_arm<big_endian>::arm_info =
"/usr/lib/libc.so.1", // dynamic_linker
0x8000, // default_text_segment_address
0x1000, // abi_pagesize (overridable by -z max-page-size)
- 0x1000 // common_pagesize (overridable by -z common-page-size)
+ 0x1000, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
// Arm relocate functions class
diff --git a/gold/common.cc b/gold/common.cc
index 632a20b..f90ae40 100644
--- a/gold/common.cc
+++ b/gold/common.cc
@@ -146,10 +146,18 @@ template<int size>
void
Symbol_table::do_allocate_commons(Layout* layout, Mapfile* mapfile)
{
- this->do_allocate_commons_list<size>(layout, false, &this->commons_,
- mapfile);
- this->do_allocate_commons_list<size>(layout, true, &this->tls_commons_,
- mapfile);
+ if (!this->commons_.empty())
+ this->do_allocate_commons_list<size>(layout, COMMONS_NORMAL,
+ &this->commons_, mapfile);
+ if (!this->tls_commons_.empty())
+ this->do_allocate_commons_list<size>(layout, COMMONS_TLS,
+ &this->tls_commons_, mapfile);
+ if (!this->small_commons_.empty())
+ this->do_allocate_commons_list<size>(layout, COMMONS_SMALL,
+ &this->small_commons_, mapfile);
+ if (!this->large_commons_.empty())
+ this->do_allocate_commons_list<size>(layout, COMMONS_LARGE,
+ &this->large_commons_, mapfile);
}
// Allocate the common symbols in a list. IS_TLS indicates whether
@@ -157,9 +165,11 @@ Symbol_table::do_allocate_commons(Layout* layout, Mapfile* mapfile)
template<int size>
void
-Symbol_table::do_allocate_commons_list(Layout* layout, bool is_tls,
- Commons_type* commons,
- Mapfile* mapfile)
+Symbol_table::do_allocate_commons_list(
+ Layout* layout,
+ Commons_section_type commons_section_type,
+ Commons_type* commons,
+ Mapfile* mapfile)
{
typedef typename Sized_symbol<size>::Value_type Value_type;
typedef typename Sized_symbol<size>::Size_type Size_type;
@@ -198,20 +208,45 @@ Symbol_table::do_allocate_commons_list(Layout* layout, bool is_tls,
Sort_commons<size>(this));
// Place them in a newly allocated BSS section.
-
- Output_data_space *poc = new Output_data_space(addralign,
- (is_tls
- ? "** tls common"
- : "** common"));
-
- const char* name = ".bss";
elfcpp::Elf_Xword flags = elfcpp::SHF_WRITE | elfcpp::SHF_ALLOC;
- if (is_tls)
+ const char* name;
+ const char* ds_name;
+ switch (commons_section_type)
{
- name = ".tbss";
+ case COMMONS_NORMAL:
+ name = ".bss";
+ ds_name = "** common";
+ break;
+ case COMMONS_TLS:
flags |= elfcpp::SHF_TLS;
+ name = ".tbss";
+ ds_name = "** tls common";
+ break;
+ case COMMONS_SMALL:
+ flags |= parameters->target().small_common_section_flags();
+ name = ".sbss";
+ ds_name = "** small common";
+ break;
+ case COMMONS_LARGE:
+ flags |= parameters->target().large_common_section_flags();
+ name = ".lbss";
+ ds_name = "** large common";
+ break;
+ default:
+ gold_unreachable();
+ }
+
+ Output_data_space *poc = new Output_data_space(addralign, ds_name);
+ Output_section *os = layout->add_output_section_data(name,
+ elfcpp::SHT_NOBITS,
+ flags, poc);
+ if (os != NULL)
+ {
+ if (commons_section_type == COMMONS_SMALL)
+ os->set_is_small_section();
+ else if (commons_section_type == COMMONS_LARGE)
+ os->set_is_large_section();
}
- layout->add_output_section_data(name, elfcpp::SHT_NOBITS, flags, poc);
// Allocate them all.
diff --git a/gold/configure b/gold/configure
index 8a6e728..0ada4cf 100755
--- a/gold/configure
+++ b/gold/configure
@@ -309,7 +309,7 @@ ac_includes_default="\
# include <unistd.h>
#endif"
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar THREADS_TRUE THREADS_FALSE PLUGINS_TRUE PLUGINS_FALSE TARGETOBJS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CXX CXXFLAGS ac_ct_CXX CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE YACC RANLIB ac_ct_RANLIB LN_S USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT MKINSTALLDIRS MSGFMT MSGMERGE NATIVE_LINKER_TRUE NATIVE_LINKER_FALSE GCC_TRUE GCC_FALSE FN_PTRS_IN_SO_WITHOUT_PIC_TRUE FN_PTRS_IN_SO_WITHOUT_PIC_FALSE TLS_TRUE TLS_FALSE STATIC_TLS_TRUE STATIC_TLS_FALSE OMP_SUPPORT_TRUE OMP_SUPPORT_FALSE TLS_GNU2_DIALECT_TRUE TLS_GNU2_DIALECT_FALSE TLS_DESCRIPTORS_TRUE TLS_DESCRIPTORS_FALSE CONSTRUCTOR_PRIORITY_TRUE CONSTRUCTOR_PRIORITY_FALSE RANDOM_SEED_CFLAGS WARN_CFLAGS NO_WERROR WARN_CXXFLAGS LFS_CFLAGS LIBOBJS CPP EGREP HAVE_ZLIB_TRUE HAVE_ZLIB_FALSE CXXCPP MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar THREADS_TRUE THREADS_FALSE PLUGINS_TRUE PLUGINS_FALSE TARGETOBJS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CXX CXXFLAGS ac_ct_CXX CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE YACC RANLIB ac_ct_RANLIB LN_S USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT MKINSTALLDIRS MSGFMT MSGMERGE NATIVE_LINKER_TRUE NATIVE_LINKER_FALSE GCC_TRUE GCC_FALSE FN_PTRS_IN_SO_WITHOUT_PIC_TRUE FN_PTRS_IN_SO_WITHOUT_PIC_FALSE MCMODEL_MEDIUM_TRUE MCMODEL_MEDIUM_FALSE TLS_TRUE TLS_FALSE STATIC_TLS_TRUE STATIC_TLS_FALSE OMP_SUPPORT_TRUE OMP_SUPPORT_FALSE TLS_GNU2_DIALECT_TRUE TLS_GNU2_DIALECT_FALSE TLS_DESCRIPTORS_TRUE TLS_DESCRIPTORS_FALSE CONSTRUCTOR_PRIORITY_TRUE CONSTRUCTOR_PRIORITY_FALSE RANDOM_SEED_CFLAGS WARN_CFLAGS NO_WERROR WARN_CXXFLAGS LFS_CFLAGS LIBOBJS CPP EGREP HAVE_ZLIB_TRUE HAVE_ZLIB_FALSE CXXCPP MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT LTLIBOBJS'
ac_subst_files=''
ac_pwd=`pwd`
@@ -4603,6 +4603,17 @@ else
fi
+
+
+if test "$target_cpu" = "x86_64"; then
+ MCMODEL_MEDIUM_TRUE=
+ MCMODEL_MEDIUM_FALSE='#'
+else
+ MCMODEL_MEDIUM_TRUE='#'
+ MCMODEL_MEDIUM_FALSE=
+fi
+
+
echo "$as_me:$LINENO: checking for thread support" >&5
echo $ECHO_N "checking for thread support... $ECHO_C" >&6
if test "${gold_cv_c_thread+set}" = set; then
@@ -7651,6 +7662,13 @@ echo "$as_me: error: conditional \"FN_PTRS_IN_SO_WITHOUT_PIC\" was never defined
Usually this means the macro was only invoked conditionally." >&2;}
{ (exit 1); exit 1; }; }
fi
+if test -z "${MCMODEL_MEDIUM_TRUE}" && test -z "${MCMODEL_MEDIUM_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"MCMODEL_MEDIUM\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"MCMODEL_MEDIUM\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
if test -z "${TLS_TRUE}" && test -z "${TLS_FALSE}"; then
{ { echo "$as_me:$LINENO: error: conditional \"TLS\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
@@ -8335,6 +8353,8 @@ s,@GCC_TRUE@,$GCC_TRUE,;t t
s,@GCC_FALSE@,$GCC_FALSE,;t t
s,@FN_PTRS_IN_SO_WITHOUT_PIC_TRUE@,$FN_PTRS_IN_SO_WITHOUT_PIC_TRUE,;t t
s,@FN_PTRS_IN_SO_WITHOUT_PIC_FALSE@,$FN_PTRS_IN_SO_WITHOUT_PIC_FALSE,;t t
+s,@MCMODEL_MEDIUM_TRUE@,$MCMODEL_MEDIUM_TRUE,;t t
+s,@MCMODEL_MEDIUM_FALSE@,$MCMODEL_MEDIUM_FALSE,;t t
s,@TLS_TRUE@,$TLS_TRUE,;t t
s,@TLS_FALSE@,$TLS_FALSE,;t t
s,@STATIC_TLS_TRUE@,$STATIC_TLS_TRUE,;t t
diff --git a/gold/configure.ac b/gold/configure.ac
index cf59a6a..c249ae4 100644
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -221,6 +221,9 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
*) true;;
esac])
+dnl Whether we can test -mcmodel=medium.
+AM_CONDITIONAL(MCMODEL_MEDIUM, [test "$target_cpu" = "x86_64"])
+
dnl Test for __thread support.
AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],
[AC_COMPILE_IFELSE([__thread int i = 1;],
diff --git a/gold/i386.cc b/gold/i386.cc
index 11204f4..0b68613 100644
--- a/gold/i386.cc
+++ b/gold/i386.cc
@@ -444,7 +444,11 @@ const Target::Target_info Target_i386::i386_info =
"/usr/lib/libc.so.1", // dynamic_linker
0x08048000, // default_text_segment_address
0x1000, // abi_pagesize (overridable by -z max-page-size)
- 0x1000 // common_pagesize (overridable by -z common-page-size)
+ 0x1000, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
// Get the GOT section, creating it if necessary.
diff --git a/gold/layout.cc b/gold/layout.cc
index 9dbcedc..c3020cd 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -788,6 +788,8 @@ Layout::make_output_section(const char* name, elfcpp::Elf_Word type,
else
os = new Output_section(name, type, flags);
+ parameters->target().new_output_section(os);
+
this->section_list_.push_back(os);
// The GNU linker by default sorts some sections by priority, so we
@@ -875,7 +877,8 @@ Layout::attach_allocated_section_to_segment(Output_section* os)
// In general the only thing we really care about for PT_LOAD
// segments is whether or not they are writable, so that is how we
- // search for them. People who need segments sorted on some other
+ // search for them. Large data sections also go into their own
+ // PT_LOAD segment. People who need segments sorted on some other
// basis will have to use a linker script.
Segment_list::const_iterator p;
@@ -883,28 +886,32 @@ Layout::attach_allocated_section_to_segment(Output_section* os)
p != this->segment_list_.end();
++p)
{
- if ((*p)->type() == elfcpp::PT_LOAD
- && (parameters->options().omagic()
- || ((*p)->flags() & elfcpp::PF_W) == (seg_flags & elfcpp::PF_W)))
- {
- // If -Tbss was specified, we need to separate the data
- // and BSS segments.
- if (parameters->options().user_set_Tbss())
- {
- if ((os->type() == elfcpp::SHT_NOBITS)
- == (*p)->has_any_data_sections())
- continue;
- }
+ if ((*p)->type() != elfcpp::PT_LOAD)
+ continue;
+ if (!parameters->options().omagic()
+ && ((*p)->flags() & elfcpp::PF_W) != (seg_flags & elfcpp::PF_W))
+ continue;
+ // If -Tbss was specified, we need to separate the data and BSS
+ // segments.
+ if (parameters->options().user_set_Tbss())
+ {
+ if ((os->type() == elfcpp::SHT_NOBITS)
+ == (*p)->has_any_data_sections())
+ continue;
+ }
+ if (os->is_large_data_section() && !(*p)->is_large_data_segment())
+ continue;
- (*p)->add_output_section(os, seg_flags);
- break;
- }
+ (*p)->add_output_section(os, seg_flags);
+ break;
}
if (p == this->segment_list_.end())
{
Output_segment* oseg = this->make_output_segment(elfcpp::PT_LOAD,
seg_flags);
+ if (os->is_large_data_section())
+ oseg->set_is_large_data_segment();
oseg->add_output_section(os, seg_flags);
}
@@ -1729,14 +1736,25 @@ Layout::segment_precedes(const Output_segment* seg1,
else if (seg2->are_addresses_set())
return false;
- // We sort PT_LOAD segments based on the flags. Readonly segments
- // come before writable segments. Then writable segments with data
- // come before writable segments without data. Then executable
- // segments come before non-executable segments. Then the unlikely
- // case of a non-readable segment comes before the normal case of a
- // readable segment. If there are multiple segments with the same
- // type and flags, we require that the address be set, and we sort
- // by virtual address and then physical address.
+ // A segment which holds large data comes after a segment which does
+ // not hold large data.
+ if (seg1->is_large_data_segment())
+ {
+ if (!seg2->is_large_data_segment())
+ return false;
+ }
+ else if (seg2->is_large_data_segment())
+ return true;
+
+ // Otherwise, we sort PT_LOAD segments based on the flags. Readonly
+ // segments come before writable segments. Then writable segments
+ // with data come before writable segments without data. Then
+ // executable segments come before non-executable segments. Then
+ // the unlikely case of a non-readable segment comes before the
+ // normal case of a readable segment. If there are multiple
+ // segments with the same type and flags, we require that the
+ // address be set, and we sort by virtual address and then physical
+ // address.
if ((flags1 & elfcpp::PF_W) != (flags2 & elfcpp::PF_W))
return (flags1 & elfcpp::PF_W) == 0;
if ((flags1 & elfcpp::PF_W) != 0
@@ -1752,6 +1770,19 @@ Layout::segment_precedes(const Output_segment* seg1,
gold_unreachable();
}
+// Increase OFF so that it is congruent to ADDR modulo ABI_PAGESIZE.
+
+static off_t
+align_file_offset(off_t off, uint64_t addr, uint64_t abi_pagesize)
+{
+ uint64_t unsigned_off = off;
+ uint64_t aligned_off = ((unsigned_off & ~(abi_pagesize - 1))
+ | (addr & (abi_pagesize - 1)));
+ if (aligned_off < unsigned_off)
+ aligned_off += abi_pagesize;
+ return aligned_off;
+}
+
// Set the file offsets of all the segments, and all the sections they
// contain. They have all been created. LOAD_SEG must be be laid out
// first. Return the offset of the data to follow.
@@ -1838,22 +1869,7 @@ Layout::set_segment_offsets(const Target* target, Output_segment* load_seg,
&& !parameters->options().omagic())
(*p)->set_minimum_p_align(common_pagesize);
- if (are_addresses_set)
- {
- if (!parameters->options().nmagic()
- && !parameters->options().omagic())
- {
- // Adjust the file offset to the same address modulo
- // the page size.
- uint64_t unsigned_off = off;
- uint64_t aligned_off = ((unsigned_off & ~(abi_pagesize - 1))
- | (addr & (abi_pagesize - 1)));
- if (aligned_off < unsigned_off)
- aligned_off += abi_pagesize;
- off = aligned_off;
- }
- }
- else
+ if (!are_addresses_set)
{
// If the last segment was readonly, and this one is
// not, then skip the address forward one page,
@@ -1874,6 +1890,10 @@ Layout::set_segment_offsets(const Target* target, Output_segment* load_seg,
off = orig_off + ((addr - orig_addr) & (abi_pagesize - 1));
}
+ if (!parameters->options().nmagic()
+ && !parameters->options().omagic())
+ off = align_file_offset(off, addr, abi_pagesize);
+
unsigned int shndx_hold = *pshndx;
uint64_t new_addr = (*p)->set_section_addresses(this, false, addr,
&off, pshndx);
@@ -1900,6 +1920,7 @@ Layout::set_segment_offsets(const Target* target, Output_segment* load_seg,
addr = align_address(aligned_addr, common_pagesize);
addr = align_address(addr, (*p)->maximum_alignment());
off = orig_off + ((addr - orig_addr) & (abi_pagesize - 1));
+ off = align_file_offset(off, addr, abi_pagesize);
new_addr = (*p)->set_section_addresses(this, true, addr,
&off, pshndx);
}
diff --git a/gold/object.cc b/gold/object.cc
index 88b6028..c3c9c7bcf 100644
--- a/gold/object.cc
+++ b/gold/object.cc
@@ -1554,7 +1554,7 @@ Sized_relobj<size, big_endian>::do_finalize_local_symbols(unsigned int index,
if (!is_ordinary)
{
- if (shndx == elfcpp::SHN_ABS || shndx == elfcpp::SHN_COMMON)
+ if (shndx == elfcpp::SHN_ABS || Symbol::is_common_shndx(shndx))
lv.set_output_value(lv.input_value());
else
{
diff --git a/gold/output.cc b/gold/output.cc
index b532136..911a49a 100644
--- a/gold/output.cc
+++ b/gold/output.cc
@@ -1764,6 +1764,8 @@ Output_section::Output_section(const char* name, elfcpp::Elf_Word type,
attached_input_sections_are_sorted_(false),
is_relro_(false),
is_relro_local_(false),
+ is_small_section_(false),
+ is_large_section_(false),
tls_offset_(0)
{
// An unallocated section has no address. Forcing this means that
@@ -2613,7 +2615,8 @@ Output_segment::Output_segment(elfcpp::Elf_Word type, elfcpp::Elf_Word flags)
type_(type),
flags_(flags),
is_max_align_known_(false),
- are_addresses_set_(false)
+ are_addresses_set_(false),
+ is_large_data_segment_(false)
{
}
@@ -2625,6 +2628,7 @@ Output_segment::add_output_section(Output_section* os,
{
gold_assert((os->flags() & elfcpp::SHF_ALLOC) != 0);
gold_assert(!this->is_max_align_known_);
+ gold_assert(os->is_large_data_section() == this->is_large_data_segment());
// Update the segment flags.
this->flags_ |= seg_flags;
@@ -2732,6 +2736,69 @@ Output_segment::add_output_section(Output_section* os,
return;
}
+ // Small data sections go at the end of the list of data sections.
+ // If OS is not small, and there are small sections, we have to
+ // insert it before the first small section.
+ if (os->type() != elfcpp::SHT_NOBITS
+ && !os->is_small_section()
+ && !pdl->empty()
+ && pdl->back()->is_section()
+ && pdl->back()->output_section()->is_small_section())
+ {
+ for (Output_segment::Output_data_list::iterator p = pdl->begin();
+ p != pdl->end();
+ ++p)
+ {
+ if ((*p)->is_section()
+ && (*p)->output_section()->is_small_section())
+ {
+ pdl->insert(p, os);
+ return;
+ }
+ }
+ gold_unreachable();
+ }
+
+ // A small BSS section goes at the start of the BSS sections, after
+ // other small BSS sections.
+ if (os->type() == elfcpp::SHT_NOBITS && os->is_small_section())
+ {
+ for (Output_segment::Output_data_list::iterator p = pdl->begin();
+ p != pdl->end();
+ ++p)
+ {
+ if (!(*p)->is_section()
+ || !(*p)->output_section()->is_small_section())
+ {
+ pdl->insert(p, os);
+ return;
+ }
+ }
+ }
+
+ // A large BSS section goes at the end of the BSS sections, which
+ // means that one that is not large must come before the first large
+ // one.
+ if (os->type() == elfcpp::SHT_NOBITS
+ && !os->is_large_section()
+ && !pdl->empty()
+ && pdl->back()->is_section()
+ && pdl->back()->output_section()->is_large_section())
+ {
+ for (Output_segment::Output_data_list::iterator p = pdl->begin();
+ p != pdl->end();
+ ++p)
+ {
+ if ((*p)->is_section()
+ && (*p)->output_section()->is_large_section())
+ {
+ pdl->insert(p, os);
+ return;
+ }
+ }
+ gold_unreachable();
+ }
+
pdl->push_back(os);
}
diff --git a/gold/output.h b/gold/output.h
index 5d2c62f..3e46ad8 100644
--- a/gold/output.h
+++ b/gold/output.h
@@ -2195,6 +2195,33 @@ class Output_section : public Output_data
set_is_relro_local()
{ this->is_relro_local_ = true; }
+ // True if this is a small section: a section which holds small
+ // variables.
+ bool
+ is_small_section() const
+ { return this->is_small_section_; }
+
+ // Record that this is a small section.
+ void
+ set_is_small_section()
+ { this->is_small_section_ = true; }
+
+ // True if this is a large section: a section which holds large
+ // variables.
+ bool
+ is_large_section() const
+ { return this->is_large_section_; }
+
+ // Record that this is a large section.
+ void
+ set_is_large_section()
+ { this->is_large_section_ = true; }
+
+ // True if this is a large data (not BSS) section.
+ bool
+ is_large_data_section()
+ { return this->is_large_section_ && this->type_ != elfcpp::SHT_NOBITS; }
+
// Return whether this section should be written after all the input
// sections are complete.
bool
@@ -2808,6 +2835,10 @@ class Output_section : public Output_data
bool is_relro_ : 1;
// True if this section holds relro local data.
bool is_relro_local_ : 1;
+ // True if this is a small section.
+ bool is_small_section_ : 1;
+ // True if this is a large section.
+ bool is_large_section_ : 1;
// For SHT_TLS sections, the offset of this section relative to the base
// of the TLS segment.
uint64_t tls_offset_;
@@ -2858,6 +2889,17 @@ class Output_segment
offset() const
{ return this->offset_; }
+ // Whether this is a segment created to hold large data sections.
+ bool
+ is_large_data_segment() const
+ { return this->is_large_data_segment_; }
+
+ // Record that this is a segment created to hold large data
+ // sections.
+ void
+ set_is_large_data_segment()
+ { this->is_large_data_segment_ = true; }
+
// Return the maximum alignment of the Output_data.
uint64_t
maximum_alignment();
@@ -3040,6 +3082,8 @@ class Output_segment
bool is_max_align_known_ : 1;
// Whether vaddr and paddr were set by a linker script.
bool are_addresses_set_ : 1;
+ // Whether this segment holds large data sections.
+ bool is_large_data_segment_ : 1;
};
// This class represents the output file.
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 9e3d327..a940fd8 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -352,7 +352,11 @@ Target::Target_info Target_powerpc<32, true>::powerpc_info =
"/usr/lib/ld.so.1", // dynamic_linker
0x10000000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 4 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 4 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
template<>
@@ -369,7 +373,11 @@ Target::Target_info Target_powerpc<32, false>::powerpc_info =
"/usr/lib/ld.so.1", // dynamic_linker
0x10000000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 4 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 4 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
template<>
@@ -386,7 +394,11 @@ Target::Target_info Target_powerpc<64, true>::powerpc_info =
"/usr/lib/ld.so.1", // dynamic_linker
0x10000000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 8 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 8 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
template<>
@@ -403,7 +415,11 @@ Target::Target_info Target_powerpc<64, false>::powerpc_info =
"/usr/lib/ld.so.1", // dynamic_linker
0x10000000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 8 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 8 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
template<int size, bool big_endian>
diff --git a/gold/resolve.cc b/gold/resolve.cc
index bd327e8..9da963f 100644
--- a/gold/resolve.cc
+++ b/gold/resolve.cc
@@ -217,6 +217,8 @@ symbol_to_bits(elfcpp::STB binding, bool is_dynamic,
default:
if (type == elfcpp::STT_COMMON)
bits |= common_flag;
+ else if (!is_ordinary && Symbol::is_common_shndx(shndx))
+ bits |= common_flag;
else
bits |= def_flag;
break;
diff --git a/gold/sparc.cc b/gold/sparc.cc
index d15b833..34288de 100644
--- a/gold/sparc.cc
+++ b/gold/sparc.cc
@@ -371,7 +371,11 @@ Target::Target_info Target_sparc<32, true>::sparc_info =
"/usr/lib/ld.so.1", // dynamic_linker
0x00010000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 8 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 8 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
template<>
@@ -388,7 +392,11 @@ Target::Target_info Target_sparc<64, true>::sparc_info =
"/usr/lib/sparcv9/ld.so.1", // dynamic_linker
0x100000, // default_text_segment_address
64 * 1024, // abi_pagesize (overridable by -z max-page-size)
- 8 * 1024 // common_pagesize (overridable by -z common-page-size)
+ 8 * 1024, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
// We have to take care here, even when operating in little-endian
diff --git a/gold/symtab.cc b/gold/symtab.cc
index 3d179ef..daf9daf 100644
--- a/gold/symtab.cc
+++ b/gold/symtab.cc
@@ -280,6 +280,16 @@ Sized_symbol<size>::init_undefined(const char* name, const char* version,
this->symsize_ = 0;
}
+// Return true if SHNDX represents a common symbol.
+
+bool
+Symbol::is_common_shndx(unsigned int shndx)
+{
+ return (shndx == elfcpp::SHN_COMMON
+ || shndx == parameters->target().small_common_shndx()
+ || shndx == parameters->target().large_common_shndx());
+}
+
// Allocate a common symbol.
template<int size>
@@ -477,7 +487,8 @@ Symbol::set_output_section(Output_section* os)
Symbol_table::Symbol_table(unsigned int count,
const Version_script_info& version_script)
: saw_undefined_(0), offset_(0), table_(count), namepool_(),
- forwarders_(), commons_(), tls_commons_(), forced_locals_(), warnings_(),
+ forwarders_(), commons_(), tls_commons_(), small_commons_(),
+ large_commons_(), forced_locals_(), warnings_(),
version_script_(version_script), gc_(NULL)
{
namepool_.reserve(count);
@@ -975,10 +986,16 @@ Symbol_table::add_from_object(Object* object,
// allocation.
if (!was_common && ret->is_common())
{
- if (ret->type() != elfcpp::STT_TLS)
- this->commons_.push_back(ret);
- else
+ if (ret->type() == elfcpp::STT_TLS)
this->tls_commons_.push_back(ret);
+ else if (!is_ordinary
+ && st_shndx == parameters->target().small_common_shndx())
+ this->small_commons_.push_back(ret);
+ else if (!is_ordinary
+ && st_shndx == parameters->target().large_common_shndx())
+ this->large_commons_.push_back(ret);
+ else
+ this->commons_.push_back(ret);
}
// If we're not doing a relocatable link, then any symbol with
@@ -2370,10 +2387,9 @@ Symbol_table::sized_finalize_symbol(Symbol* unsized_sym)
bool is_ordinary;
unsigned int shndx = sym->shndx(&is_ordinary);
- // FIXME: We need some target specific support here.
if (!is_ordinary
&& shndx != elfcpp::SHN_ABS
- && shndx != elfcpp::SHN_COMMON)
+ && !Symbol::is_common_shndx(shndx))
{
gold_error(_("%s: unsupported symbol section 0x%x"),
sym->demangled_name().c_str(), shndx);
@@ -2394,7 +2410,8 @@ Symbol_table::sized_finalize_symbol(Symbol* unsized_sym)
else if (shndx == elfcpp::SHN_UNDEF)
value = 0;
else if (!is_ordinary
- && (shndx == elfcpp::SHN_ABS || shndx == elfcpp::SHN_COMMON))
+ && (shndx == elfcpp::SHN_ABS
+ || Symbol::is_common_shndx(shndx)))
value = sym->value();
else
{
@@ -2597,10 +2614,9 @@ Symbol_table::sized_write_globals(const Stringpool* sympool,
bool is_ordinary;
unsigned int in_shndx = sym->shndx(&is_ordinary);
- // FIXME: We need some target specific support here.
if (!is_ordinary
&& in_shndx != elfcpp::SHN_ABS
- && in_shndx != elfcpp::SHN_COMMON)
+ && !Symbol::is_common_shndx(in_shndx))
{
gold_error(_("%s: unsupported symbol section 0x%x"),
sym->demangled_name().c_str(), in_shndx);
@@ -2620,7 +2636,7 @@ Symbol_table::sized_write_globals(const Stringpool* sympool,
else if (in_shndx == elfcpp::SHN_UNDEF
|| (!is_ordinary
&& (in_shndx == elfcpp::SHN_ABS
- || in_shndx == elfcpp::SHN_COMMON)))
+ || Symbol::is_common_shndx(in_shndx))))
shndx = in_shndx;
else
{
diff --git a/gold/symtab.h b/gold/symtab.h
index 660fc4d..be6bc12 100644
--- a/gold/symtab.h
+++ b/gold/symtab.h
@@ -411,6 +411,11 @@ class Symbol
bool
final_value_is_known() const;
+ // Return true if SHNDX represents a common symbol. This depends on
+ // the target.
+ static bool
+ is_common_shndx(unsigned int shndx);
+
// Return whether this is a defined symbol (not undefined or
// common).
bool
@@ -422,7 +427,7 @@ class Symbol
unsigned int shndx = this->shndx(&is_ordinary);
return (is_ordinary
? shndx != elfcpp::SHN_UNDEF
- : shndx != elfcpp::SHN_COMMON);
+ : !Symbol::is_common_shndx(shndx));
}
// Return true if this symbol is from a dynamic object.
@@ -463,11 +468,13 @@ class Symbol
bool
is_common() const
{
+ if (this->type_ == elfcpp::STT_COMMON)
+ return true;
+ if (this->source_ != FROM_OBJECT)
+ return false;
bool is_ordinary;
- return (this->source_ == FROM_OBJECT
- && ((this->shndx(&is_ordinary) == elfcpp::SHN_COMMON
- && !is_ordinary)
- || this->type_ == elfcpp::STT_COMMON));
+ unsigned int shndx = this->shndx(&is_ordinary);
+ return !is_ordinary && Symbol::is_common_shndx(shndx);
}
// Return whether this symbol can be seen outside this object.
@@ -1505,6 +1512,16 @@ class Symbol_table
void
do_add_undefined_symbols_from_command_line();
+ // Types of common symbols.
+
+ enum Commons_section_type
+ {
+ COMMONS_NORMAL,
+ COMMONS_TLS,
+ COMMONS_SMALL,
+ COMMONS_LARGE
+ };
+
// Allocate the common symbols, sized version.
template<int size>
void
@@ -1513,7 +1530,8 @@ class Symbol_table
// Allocate the common symbols from one list.
template<int size>
void
- do_allocate_commons_list(Layout*, bool is_tls, Commons_type*, Mapfile*);
+ do_allocate_commons_list(Layout*, Commons_section_type, Commons_type*,
+ Mapfile*);
// Implement detect_odr_violations.
template<int size, bool big_endian>
@@ -1630,6 +1648,10 @@ class Symbol_table
// This is like the commons_ field, except that it holds TLS common
// symbols.
Commons_type tls_commons_;
+ // This is for small common symbols.
+ Commons_type small_commons_;
+ // This is for large common symbols.
+ Commons_type large_commons_;
// A list of symbols which have been forced to be local. We don't
// expect there to be very many of them, so we keep a list of them
// rather than walking the whole table to find them.
diff --git a/gold/target.h b/gold/target.h
index 2a28105..597a4f9 100644
--- a/gold/target.h
+++ b/gold/target.h
@@ -141,6 +141,43 @@ class Target
wrap_char() const
{ return this->pti_->wrap_char; }
+ // Return the special section index which indicates a small common
+ // symbol. This will return SHN_UNDEF if there are no small common
+ // symbols.
+ elfcpp::Elf_Half
+ small_common_shndx() const
+ { return this->pti_->small_common_shndx; }
+
+ // Return values to add to the section flags for the section holding
+ // small common symbols.
+ elfcpp::Elf_Xword
+ small_common_section_flags() const
+ {
+ gold_assert(this->pti_->small_common_shndx != elfcpp::SHN_UNDEF);
+ return this->pti_->small_common_section_flags;
+ }
+
+ // Return the special section index which indicates a large common
+ // symbol. This will return SHN_UNDEF if there are no large common
+ // symbols.
+ elfcpp::Elf_Half
+ large_common_shndx() const
+ { return this->pti_->large_common_shndx; }
+
+ // Return values to add to the section flags for the section holding
+ // large common symbols.
+ elfcpp::Elf_Xword
+ large_common_section_flags() const
+ {
+ gold_assert(this->pti_->large_common_shndx != elfcpp::SHN_UNDEF);
+ return this->pti_->large_common_section_flags;
+ }
+
+ // This hook is called when an output section is created.
+ void
+ new_output_section(Output_section* os) const
+ { this->do_new_output_section(os); }
+
// This is called to tell the target to complete any sections it is
// handling. After this all sections must have their final size.
void
@@ -210,6 +247,16 @@ class Target
uint64_t abi_pagesize;
// The common page size used by actual implementations.
uint64_t common_pagesize;
+ // The special section index for small common symbols; SHN_UNDEF
+ // if none.
+ elfcpp::Elf_Half small_common_shndx;
+ // The special section index for large common symbols; SHN_UNDEF
+ // if none.
+ elfcpp::Elf_Half large_common_shndx;
+ // Section flags for small common section.
+ elfcpp::Elf_Xword small_common_section_flags;
+ // Section flags for large common section.
+ elfcpp::Elf_Xword large_common_section_flags;
};
Target(const Target_info* pti)
@@ -218,6 +265,11 @@ class Target
// Virtual function which may be implemented by the child class.
virtual void
+ do_new_output_section(Output_section*) const
+ { }
+
+ // Virtual function which may be implemented by the child class.
+ virtual void
do_finalize_sections(Layout*)
{ }
diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index 3bb5bd3..5afd4b0 100644
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -1092,5 +1092,13 @@ discard_locals_test.syms: discard_locals_test
discard_locals_test.o: discard_locals_test.c
$(COMPILE) -c -Wa,-L -o $@ $<
+if MCMODEL_MEDIUM
+check_PROGRAMS += large
+large_SOURCES = large.c
+large_CFLAGS = -mcmodel=medium
+large_DEPENDENCIES = gcctestdir/ld
+large_LDFLAGS = -Bgcctestdir/
+endif MCMODEL_MEDIUM
+
endif GCC
endif NATIVE_LINKER
diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 1bc579e..c108274 100644
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -48,7 +48,7 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
$(am__EXEEXT_7) $(am__EXEEXT_8) $(am__EXEEXT_9) \
$(am__EXEEXT_10) $(am__EXEEXT_11) $(am__EXEEXT_12) \
$(am__EXEEXT_13) $(am__EXEEXT_14) $(am__EXEEXT_15) \
- $(am__EXEEXT_16) $(am__EXEEXT_17)
+ $(am__EXEEXT_16) $(am__EXEEXT_17) $(am__EXEEXT_18)
# Test --detect-odr-violations
@@ -330,6 +330,20 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ libexclude_libs_test_2.a \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ alt/libexclude_libs_test_3.a \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ discard_locals_test.syms
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@am__append_28 = large
+@GCC_FALSE@large_DEPENDENCIES = libgoldtest.a ../libgold.a \
+@GCC_FALSE@ ../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \
+@GCC_FALSE@ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
+@MCMODEL_MEDIUM_FALSE@large_DEPENDENCIES = libgoldtest.a ../libgold.a \
+@MCMODEL_MEDIUM_FALSE@ ../../libiberty/libiberty.a \
+@MCMODEL_MEDIUM_FALSE@ $(am__DEPENDENCIES_1) \
+@MCMODEL_MEDIUM_FALSE@ $(am__DEPENDENCIES_1) \
+@MCMODEL_MEDIUM_FALSE@ $(am__DEPENDENCIES_1)
+@NATIVE_LINKER_FALSE@large_DEPENDENCIES = libgoldtest.a ../libgold.a \
+@NATIVE_LINKER_FALSE@ ../../libiberty/libiberty.a \
+@NATIVE_LINKER_FALSE@ $(am__DEPENDENCIES_1) \
+@NATIVE_LINKER_FALSE@ $(am__DEPENDENCIES_1) \
+@NATIVE_LINKER_FALSE@ $(am__DEPENDENCIES_1)
subdir = testsuite
DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -438,6 +452,7 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
@GCC_TRUE@@NATIVE_LINKER_TRUE@ exclude_libs_test$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ local_labels_test$(EXEEXT) \
@GCC_TRUE@@NATIVE_LINKER_TRUE@ discard_locals_test$(EXEEXT)
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@am__EXEEXT_18 = large$(EXEEXT)
basic_pic_test_SOURCES = basic_pic_test.c
basic_pic_test_OBJECTS = basic_pic_test.$(OBJEXT)
basic_pic_test_LDADD = $(LDADD)
@@ -589,6 +604,10 @@ am__justsyms_SOURCES_DIST = justsyms_1.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@ justsyms_1.$(OBJEXT)
justsyms_OBJECTS = $(am_justsyms_OBJECTS)
justsyms_LDADD = $(LDADD)
+am__large_SOURCES_DIST = large.c
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@am_large_OBJECTS = large-large.$(OBJEXT)
+large_OBJECTS = $(am_large_OBJECTS)
+large_LDADD = $(LDADD)
local_labels_test_SOURCES = local_labels_test.c
local_labels_test_OBJECTS = local_labels_test.$(OBJEXT)
local_labels_test_LDADD = $(LDADD)
@@ -923,15 +942,16 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
$(exclude_libs_test_SOURCES) \
flagstest_compress_debug_sections.c flagstest_o_specialfile.c \
flagstest_o_specialfile_and_compress_debug_sections.c \
- $(initpri1_SOURCES) $(justsyms_SOURCES) local_labels_test.c \
- many_sections_r_test.c $(many_sections_test_SOURCES) \
- $(object_unittest_SOURCES) plugin_test_1.c plugin_test_2.c \
- plugin_test_3.c plugin_test_4.c $(protected_1_SOURCES) \
- $(protected_2_SOURCES) $(relro_script_test_SOURCES) \
- $(relro_test_SOURCES) $(script_test_1_SOURCES) \
- $(script_test_2_SOURCES) script_test_3.c \
- $(thin_archive_test_1_SOURCES) $(thin_archive_test_2_SOURCES) \
- $(tls_pic_test_SOURCES) $(tls_shared_gd_to_ie_test_SOURCES) \
+ $(initpri1_SOURCES) $(justsyms_SOURCES) $(large_SOURCES) \
+ local_labels_test.c many_sections_r_test.c \
+ $(many_sections_test_SOURCES) $(object_unittest_SOURCES) \
+ plugin_test_1.c plugin_test_2.c plugin_test_3.c \
+ plugin_test_4.c $(protected_1_SOURCES) $(protected_2_SOURCES) \
+ $(relro_script_test_SOURCES) $(relro_test_SOURCES) \
+ $(script_test_1_SOURCES) $(script_test_2_SOURCES) \
+ script_test_3.c $(thin_archive_test_1_SOURCES) \
+ $(thin_archive_test_2_SOURCES) $(tls_pic_test_SOURCES) \
+ $(tls_shared_gd_to_ie_test_SOURCES) \
$(tls_shared_gnu2_gd_to_ie_test_SOURCES) \
$(tls_shared_gnu2_test_SOURCES) $(tls_shared_ie_test_SOURCES) \
$(tls_shared_nonpic_test_SOURCES) $(tls_shared_test_SOURCES) \
@@ -979,8 +999,8 @@ DIST_SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
flagstest_compress_debug_sections.c flagstest_o_specialfile.c \
flagstest_o_specialfile_and_compress_debug_sections.c \
$(am__initpri1_SOURCES_DIST) $(am__justsyms_SOURCES_DIST) \
- local_labels_test.c many_sections_r_test.c \
- $(am__many_sections_test_SOURCES_DIST) \
+ $(am__large_SOURCES_DIST) local_labels_test.c \
+ many_sections_r_test.c $(am__many_sections_test_SOURCES_DIST) \
$(object_unittest_SOURCES) plugin_test_1.c plugin_test_2.c \
plugin_test_3.c plugin_test_4.c \
$(am__protected_1_SOURCES_DIST) \
@@ -1086,6 +1106,8 @@ MAINT = @MAINT@
MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
MAKEINFO = @MAKEINFO@
+MCMODEL_MEDIUM_FALSE = @MCMODEL_MEDIUM_FALSE@
+MCMODEL_MEDIUM_TRUE = @MCMODEL_MEDIUM_TRUE@
MKINSTALLDIRS = @MKINSTALLDIRS@
MSGFMT = @MSGFMT@
MSGMERGE = @MSGMERGE@
@@ -1546,6 +1568,10 @@ binary_unittest_SOURCES = binary_unittest.cc
@GCC_TRUE@@NATIVE_LINKER_TRUE@discard_locals_test_SOURCES = discard_locals_test.c
@GCC_TRUE@@NATIVE_LINKER_TRUE@discard_locals_test_LDFLAGS = -Bgcctestdir/ -Wl,--discard-locals
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@large_SOURCES = large.c
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@large_CFLAGS = -mcmodel=medium
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@large_DEPENDENCIES = gcctestdir/ld
+@GCC_TRUE@@MCMODEL_MEDIUM_TRUE@@NATIVE_LINKER_TRUE@large_LDFLAGS = -Bgcctestdir/
all: $(BUILT_SOURCES)
$(MAKE) $(AM_MAKEFLAGS) all-am
@@ -1689,6 +1715,9 @@ initpri1$(EXEEXT): $(initpri1_OBJECTS) $(initpri1_DEPENDENCIES)
justsyms$(EXEEXT): $(justsyms_OBJECTS) $(justsyms_DEPENDENCIES)
@rm -f justsyms$(EXEEXT)
$(CXXLINK) $(justsyms_LDFLAGS) $(justsyms_OBJECTS) $(justsyms_LDADD) $(LIBS)
+large$(EXEEXT): $(large_OBJECTS) $(large_DEPENDENCIES)
+ @rm -f large$(EXEEXT)
+ $(LINK) $(large_LDFLAGS) $(large_OBJECTS) $(large_LDADD) $(LIBS)
@GCC_FALSE@local_labels_test$(EXEEXT): $(local_labels_test_OBJECTS) $(local_labels_test_DEPENDENCIES)
@GCC_FALSE@ @rm -f local_labels_test$(EXEEXT)
@GCC_FALSE@ $(LINK) $(local_labels_test_LDFLAGS) $(local_labels_test_OBJECTS) $(local_labels_test_LDADD) $(LIBS)
@@ -1928,6 +1957,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_specialfile_and_compress_debug_sections.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/initpri1.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/justsyms_1.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/large-large.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/local_labels_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/many_sections_r_test.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/many_sections_test.Po@am__quote@
@@ -1980,6 +2010,20 @@ distclean-compile:
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(COMPILE) -c `$(CYGPATH_W) '$<'`
+large-large.o: large.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(large_CFLAGS) $(CFLAGS) -MT large-large.o -MD -MP -MF "$(DEPDIR)/large-large.Tpo" -c -o large-large.o `test -f 'large.c' || echo '$(srcdir)/'`large.c; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/large-large.Tpo" "$(DEPDIR)/large-large.Po"; else rm -f "$(DEPDIR)/large-large.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='large.c' object='large-large.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(large_CFLAGS) $(CFLAGS) -c -o large-large.o `test -f 'large.c' || echo '$(srcdir)/'`large.c
+
+large-large.obj: large.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(large_CFLAGS) $(CFLAGS) -MT large-large.obj -MD -MP -MF "$(DEPDIR)/large-large.Tpo" -c -o large-large.obj `if test -f 'large.c'; then $(CYGPATH_W) 'large.c'; else $(CYGPATH_W) '$(srcdir)/large.c'; fi`; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/large-large.Tpo" "$(DEPDIR)/large-large.Po"; else rm -f "$(DEPDIR)/large-large.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='large.c' object='large-large.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(large_CFLAGS) $(CFLAGS) -c -o large-large.obj `if test -f 'large.c'; then $(CYGPATH_W) 'large.c'; else $(CYGPATH_W) '$(srcdir)/large.c'; fi`
+
.cc.o:
@am__fastdepCXX_TRUE@ if $(CXXCOMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ $<; \
@am__fastdepCXX_TRUE@ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
diff --git a/gold/testsuite/large.c b/gold/testsuite/large.c
new file mode 100644
index 0000000..796242a
--- /dev/null
+++ b/gold/testsuite/large.c
@@ -0,0 +1,59 @@
+/* large.c -- a test case for gold
+
+ Copyright 2009 Free Software Foundation, Inc.
+ Written by Ian Lance Taylor <iant@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. */
+
+#include <assert.h>
+
+/* Test large sections in gold. */
+
+int v1;
+int v2 = 1;
+int v3[0x10000];
+int v4[0x10000] = { 1 };
+const int v5[0x10000] = { 2 };
+int v6;
+int v7 = 1;
+
+int
+main (int argc __attribute__ ((unused)), char** argv __attribute ((unused)))
+{
+ assert (v1 == 0);
+ assert (v2 == 1);
+ assert (v3[0] == 0 && v3[0xffff] == 0);
+ assert (v4[0] == 1 && v4[0xffff] == 0);
+ assert (v5[0] == 2 && v5[0xffff] == 0);
+ assert (v6 == 0);
+ assert (v7 == 1);
+
+ /* The large symbols must follow the small ones. */
+ assert (&v1 < v3 && &v1 < v4 && &v1 < v5);
+ assert (&v2 < v3 && &v2 < v4 && &v2 < v5);
+ assert (&v6 < v3 && &v6 < v4 && &v6 < v5);
+ assert (&v7 < v3 && &v7 < v4 && &v7 < v5);
+
+ /* Large symbols should be BSS followed by read-only followed by
+ read-write. */
+ assert (v3 < v4);
+ assert (v3 < v5);
+ assert (v5 < v4);
+
+ return 0;
+}
diff --git a/gold/testsuite/testfile.cc b/gold/testsuite/testfile.cc
index a2a45be..2532307 100644
--- a/gold/testsuite/testfile.cc
+++ b/gold/testsuite/testfile.cc
@@ -99,7 +99,11 @@ const Target::Target_info Target_test<size, big_endian>::test_target_info =
"/dummy", // dynamic_linker
0x08000000, // default_text_segment_address
0x1000, // abi_pagesize
- 0x1000 // common_pagesize
+ 0x1000, // common_pagesize
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0 // large_common_section_flags
};
// The test targets.
diff --git a/gold/x86_64.cc b/gold/x86_64.cc
index 611c37e..91b542e 100644
--- a/gold/x86_64.cc
+++ b/gold/x86_64.cc
@@ -67,6 +67,10 @@ class Target_x86_64 : public Target_freebsd<64, false>
got_mod_index_offset_(-1U), tls_base_symbol_defined_(false)
{ }
+ // Hook for a new output section.
+ void
+ do_new_output_section(Output_section*) const;
+
// Scan the relocations to look for symbol adjustments.
void
gc_process_relocs(const General_options& options,
@@ -438,9 +442,23 @@ const Target::Target_info Target_x86_64::x86_64_info =
"/lib/ld64.so.1", // program interpreter
0x400000, // default_text_segment_address
0x1000, // abi_pagesize (overridable by -z max-page-size)
- 0x1000 // common_pagesize (overridable by -z common-page-size)
+ 0x1000, // common_pagesize (overridable by -z common-page-size)
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_X86_64_LCOMMON, // large_common_shndx
+ 0, // small_common_section_flags
+ elfcpp::SHF_X86_64_LARGE // large_common_section_flags
};
+// This is called when a new output section is created. This is where
+// we handle the SHF_X86_64_LARGE.
+
+void
+Target_x86_64::do_new_output_section(Output_section *os) const
+{
+ if ((os->flags() & elfcpp::SHF_X86_64_LARGE) != 0)
+ os->set_is_large_section();
+}
+
// Get the GOT section, creating it if necessary.
Output_data_got<64, false>*
generated by cgit v1.1 at 2024-12-19 07:33:25 +0000