diff options
Diffstat (limited to 'meta')
| -rw-r--r-- | meta/recipes-devtools/binutils/binutils-2.22.inc | 3 | ||||
| -rw-r--r-- | meta/recipes-devtools/binutils/binutils/0038-Copy-from-mainline-to-binutils-2.22-branch.patch | 1944 |
2 files changed, 1 insertions, 1946 deletions
diff --git a/meta/recipes-devtools/binutils/binutils-2.22.inc b/meta/recipes-devtools/binutils/binutils-2.22.inc index 42dc6b78b5..9697242379 100644 --- a/meta/recipes-devtools/binutils/binutils-2.22.inc +++ b/meta/recipes-devtools/binutils/binutils-2.22.inc @@ -1,4 +1,4 @@ -PR = "r16" +PR = "r17" LIC_FILES_CHKSUM="\ file://src-release;endline=17;md5=4830a9ef968f3b18dd5e9f2c00db2d35\ @@ -38,7 +38,6 @@ SRC_URI = "\ file://0035-2011-12-19-Chung-Lin-Tang-cltang-codesourcery.com.patch \ file://0036-2011-12-19-Chung-Lin-Tang-cltang-codesourcery.com.patch \ file://0037-2011-12-19-Chung-Lin-Tang-cltang-codesourcery.com.patch \ - file://0038-Copy-from-mainline-to-binutils-2.22-branch.patch \ file://0039-emulparams-elf32bmip.sh-OTHER_SECTIONS-Put-.mdebug.-.patch \ file://0052-gas.patch \ file://0055-Remove-ABI_64_P-check-on-R_X86_64_PCXX.patch \ diff --git a/meta/recipes-devtools/binutils/binutils/0038-Copy-from-mainline-to-binutils-2.22-branch.patch b/meta/recipes-devtools/binutils/binutils/0038-Copy-from-mainline-to-binutils-2.22-branch.patch deleted file mode 100644 index 453ef2211c..0000000000 --- a/meta/recipes-devtools/binutils/binutils/0038-Copy-from-mainline-to-binutils-2.22-branch.patch +++ /dev/null @@ -1,1944 +0,0 @@ -Upstream-Status: Backport - -From 624da0376264205e399bc14fe2fa7b6fa659d0ee Mon Sep 17 00:00:00 2001 -From: Ian Lance Taylor <ian@airs.com> -Date: Mon, 19 Dec 2011 21:14:39 +0000 -Subject: [PATCH 038/262] Copy from mainline to binutils 2.22 branch: - - 2011-12-17 Cary Coutant <ccoutant@google.com> - - * dwarf_reader.cc (Sized_dwarf_line_info::read_lines): Add casts. - * resolve.cc (Symbol_table::resolve): Likewise. - * i386.cc (Target_i386::do_code_fill): Use char constants for nop - arrays. - * x86_64.cc (Target_x86_64::do_code_fill): Likewise. - - 2011-10-31 Cary Coutant <ccoutant@google.com> - - PR gold/13023 - * expression.cc (Expression::eval_with_dot): Add - is_section_dot_assignment parameter. - (Expression::eval_maybe_dot): Likewise. Adjust value when rhs is - absolute and assigning to dot within a section. - * script-sections.cc - (Output_section_element_assignment::set_section_addresses): Pass - dot_section to set_if_absolute. - (Output_section_element_dot_assignment::finalize_symbols): Pass TRUE - as is_section_dot_assignment flag to eval_with_dot. - (Output_section_element_dot_assignment::set_section_addresses): - Likewise. - * script.cc (Symbol_assignment::set_if_absolute): Add dot_section - parameter. Also set value if relative to dot_section; set the - symbol's output_section. - * script.h (Expression::eval_with_dot): Add is_section_dot_assignment - parameter. Adjust all callers. - (Expression::eval_maybe_dot): Likewise. - (Symbol_assignment::set_if_absolute): Add dot_section parameter. - Adjust all callers. - * testsuite/script_test_2.t: Test assignment of an absolute value - to dot within an output section element. - - 2011-10-31 Cary Coutant <ccoutant@google.com> - - * options.h (class General_options): Add --[no-]gnu-unique options. - * symtab.cc (Symbol_table::sized_write_globals): Convert - STB_GNU_UNIQUE to STB_GLOBAL if --no-gnu-unique. - - 2011-10-31 Cary Coutant <ccoutant@google.com> - - PR gold/13359 - * i386.cc (Target_i386::Relocate::relocate_tls): Remove - unnecessary assertion. - * x86_64.cc (Target_x86_64::Relocate::relocate_tls): Likewise. - - 2011-10-31 Sriraman Tallam <tmsriram@google.com> - - * symtab.h (Symbol_table::gc_mark_symbol_for_shlib): Rename to - gc_mark_symbol. - * symtab.cc (Symbol_table::gc_mark_symbol_for_shlib): Rename to - gc_mark_symbol. - Change to just keep the section associated with symbol. - (Symbol_table::add_from_relobj): Mark symbols as not garbage when - they are externally visible and --export-dynamic is turned on. - (Symbol_table::gc_mark_dyn_syms): Call gc_mark_symbol. - - 2011-10-19 Ian Lance Taylor <iant@google.com> - - PR gold/13163 - * script-sections.cc - (Output_section_element_dot_assignment::needs_output_section): New - function. - - 2011-10-19 Ian Lance Taylor <iant@google.com> - - PR gold/13204 - * layout.cc (Layout::segment_precedes): Don't assert failure if a - --section-start option was seen. - * options.h (General_options::any_section_start): New function. - - 2011-10-18 Cary Coutant <ccoutant@google.com> - - * output.cc (posix_fallocate): Return 0 on success, errno on failure. - (Output_file::map_no_anonymous): Check for non-zero - return code from posix_fallocate. - - 2011-10-17 Cary Coutant <ccoutant@google.com> - - PR gold/13245 - * plugin.cc (is_visible_from_outside): Check for symbols - referenced from dynamic objects. - * resolve.cc (Symbol_table::resolve): Don't count references - from dynamic objects as references from real ELF files. - * testsuite/plugin_test_2.sh: Adjust expected result. - - 2011-10-17 Cary Coutant <ccoutant@google.com> - - * readsyms.cc (Read_symbols::run): Don't queue an unblocker - task for members of lib groups. - - 2011-10-17 Cary Coutant <ccoutant@google.com> - - PR gold/13288 - * fileread.cc (File_read::find_view): Add assert. - (File_read::make_view): Move bounds check (replace with assert)... - (File_read::find_or_make_view): ... to here. - - 2011-10-12 Cary Coutant <ccoutant@google.com> - - * output.cc (Output_file::open_base_file): Handle case where - ::read returns less than requested size. - - 2011-10-10 Cary Coutant <ccoutant@google.com> - - * incremental.cc (Sized_relobj_incr::Sized_relobj_incr): - Initialize defined_count_. - (Sized_relobj_incr::do_add_symbols): Count defined symbols. - (Sized_relobj_incr::do_get_global_symbol_counts): Rewrite. - (Sized_incr_dynobj::Sized_incr_dynobj): Initialize defined_count_. - (Sized_incr_dynobj::do_add_symbols): Count defined symbols. - (Sized_incr_dynobj::do_get_global_symbol_counts): Rewrite. - * incremental.h (Sized_relobj_incr::defined_count_): New data - member. - (Sized_incr_dynobj::defined_count_): New data member. - * plugin.cc (Sized_pluginobj::do_get_global_symbol_counts): - Return zeroes instead of internal error. - - 2011-10-10 Cary Coutant <ccoutant@google.com> - - PR gold/13249 - * output.cc (Output_reloc::Output_reloc): Add use_plt_offset flag. - (Output_reloc::symbol_value): Return PLT offset if flag is set. - * output.h (class Output_reloc): Add use_plt_offset flag. - (Output_reloc::type_): Adjust size of bit field. - (Output_reloc::use_plt_offset_): New bit field. - (class Output_data_reloc): Adjust all calls to Output_reloc_type. - (Output_data_reloc::add_local_relative): (RELA only) Add use_plt_offset - flag. Adjust all callers. - * x86_64.cc (Target_x86_64::Scan::local): Check for IFUNC when - creating RELATIVE relocations. - - 2011-10-03 Diego Novillo <dnovillo@google.com> - - * options.cc (parse_uint): Fix dereference of RETVAL. - - 2011-09-29 Cary Coutant <ccoutant@google.com> - - * incremental.cc (Sized_incremental_binary::do_process_got_plt): - Check for NULL. - * symtab.cc (Symbol_table::add_from_relobj): Ignore version - symbols during incremental update. - (Symbol_table::add_from_dynobj): Likewise. - - 2011-09-26 Cary Coutant <ccoutant@google.com> - - * gold.cc (queue_initial_tasks): Move option checks ... - * options.cc (General_options::finalize): ... to here. Disable - some options; make others fatal. - - 2011-09-23 Simon Baldwin <simonb@google.com> - - * configure.ac: Add new --with-gold-ldadd and --with-gold-ldflags - configuration options. - * configure: Regenerate. - * Makefile.am: Handle GOLD_LDADD and GOLD_LDFLAGS. - * Makefile.in: Regenerate. - * testsuite/Makefile.in: Regenerate. ---- - gold/ChangeLog | 163 +++++++++++++++++++++++++++++++++++++++ - gold/dwarf_reader.cc | 8 +- - gold/expression.cc | 45 +++++++---- - gold/fileread.cc | 27 ++++--- - gold/gold.cc | 55 +++++-------- - gold/i386.cc | 87 +++++++++++---------- - gold/incremental.cc | 50 +++++++++--- - gold/incremental.h | 4 + - gold/layout.cc | 5 +- - gold/options.cc | 33 +++++++- - gold/options.h | 9 +++ - gold/output.cc | 78 ++++++++++++------- - gold/output.h | 64 +++++++++------ - gold/plugin.cc | 18 +++-- - gold/powerpc.cc | 4 +- - gold/readsyms.cc | 6 +- - gold/resolve.cc | 6 +- - gold/script-sections.cc | 47 +++++++---- - gold/script.cc | 17 ++-- - gold/script.h | 24 ++++-- - gold/sparc.cc | 4 +- - gold/symtab.cc | 65 +++++++++------- - gold/symtab.h | 5 +- - gold/testsuite/Makefile.in | 2 + - gold/testsuite/plugin_test_2.sh | 2 +- - gold/testsuite/script_test_2.t | 2 +- - gold/x86_64.cc | 99 ++++++++++++------------ - 27 files changed, 636 insertions(+), 293 deletions(-) - -diff --git a/gold/dwarf_reader.cc b/gold/dwarf_reader.cc -index 3dc33e4..2b47a28 100644 ---- a/gold/dwarf_reader.cc -+++ b/gold/dwarf_reader.cc -@@ -1,6 +1,6 @@ - // dwarf_reader.cc -- parse dwarf2/3 debug information - --// Copyright 2007, 2008, 2009, 2010 Free Software Foundation, Inc. -+// Copyright 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. - // Written by Ian Lance Taylor <iant@google.com>. - - // This file is part of gold. -@@ -491,8 +491,10 @@ Sized_dwarf_line_info<size, big_endian>::read_lines(unsigned const char* lineptr - && (shndx == -1U || lsm.shndx == -1U || shndx == lsm.shndx)) - { - Offset_to_lineno_entry entry -- = { lsm.address, this->current_header_index_, -- lsm.file_num, true, lsm.line_num }; -+ = { static_cast<off_t>(lsm.address), -+ this->current_header_index_, -+ static_cast<unsigned int>(lsm.file_num), -+ true, lsm.line_num }; - std::vector<Offset_to_lineno_entry>& - map(this->line_number_map_[lsm.shndx]); - // If we see two consecutive entries with the same -diff --git a/gold/expression.cc b/gold/expression.cc -index e527b5e..e31c151 100644 ---- a/gold/expression.cc -+++ b/gold/expression.cc -@@ -1,6 +1,6 @@ - // expression.cc -- expressions in linker scripts for gold - --// Copyright 2006, 2007, 2008 Free Software Foundation, Inc. -+// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. - // Written by Ian Lance Taylor <iant@google.com>. - - // This file is part of gold. -@@ -77,7 +77,7 @@ Expression::eval(const Symbol_table* symtab, const Layout* layout, - bool check_assertions) - { - return this->eval_maybe_dot(symtab, layout, check_assertions, -- false, 0, NULL, NULL, NULL); -+ false, 0, NULL, NULL, NULL, false); - } - - // Evaluate an expression which may refer to the dot symbol. -@@ -87,11 +87,13 @@ Expression::eval_with_dot(const Symbol_table* symtab, const Layout* layout, - bool check_assertions, uint64_t dot_value, - Output_section* dot_section, - Output_section** result_section_pointer, -- uint64_t* result_alignment_pointer) -+ uint64_t* result_alignment_pointer, -+ bool is_section_dot_assignment) - { - return this->eval_maybe_dot(symtab, layout, check_assertions, true, - dot_value, dot_section, result_section_pointer, -- result_alignment_pointer); -+ result_alignment_pointer, -+ is_section_dot_assignment); - } - - // Evaluate an expression which may or may not refer to the dot -@@ -102,7 +104,8 @@ Expression::eval_maybe_dot(const Symbol_table* symtab, const Layout* layout, - bool check_assertions, bool is_dot_available, - uint64_t dot_value, Output_section* dot_section, - Output_section** result_section_pointer, -- uint64_t* result_alignment_pointer) -+ uint64_t* result_alignment_pointer, -+ bool is_section_dot_assignment) - { - Expression_eval_info eei; - eei.symtab = symtab; -@@ -113,14 +116,24 @@ Expression::eval_maybe_dot(const Symbol_table* symtab, const Layout* layout, - eei.dot_section = dot_section; - - // We assume the value is absolute, and only set this to a section -- // if we find a section relative reference. -+ // if we find a section-relative reference. - if (result_section_pointer != NULL) - *result_section_pointer = NULL; - eei.result_section_pointer = result_section_pointer; - - eei.result_alignment_pointer = result_alignment_pointer; - -- return this->value(&eei); -+ uint64_t val = this->value(&eei); -+ -+ // If this is an assignment to dot within a section, and the value -+ // is absolute, treat it as a section-relative offset. -+ if (is_section_dot_assignment && *result_section_pointer == NULL) -+ { -+ gold_assert(dot_section != NULL); -+ val += dot_section->address(); -+ *result_section_pointer = dot_section; -+ } -+ return val; - } - - // A number. -@@ -257,7 +270,8 @@ class Unary_expression : public Expression - eei->dot_value, - eei->dot_section, - arg_section_pointer, -- eei->result_alignment_pointer); -+ eei->result_alignment_pointer, -+ false); - } - - void -@@ -336,7 +350,8 @@ class Binary_expression : public Expression - eei->dot_value, - eei->dot_section, - section_pointer, -- alignment_pointer); -+ alignment_pointer, -+ false); - } - - uint64_t -@@ -350,7 +365,8 @@ class Binary_expression : public Expression - eei->dot_value, - eei->dot_section, - section_pointer, -- alignment_pointer); -+ alignment_pointer, -+ false); - } - - void -@@ -500,7 +516,8 @@ class Trinary_expression : public Expression - eei->dot_value, - eei->dot_section, - section_pointer, -- NULL); -+ NULL, -+ false); - } - - uint64_t -@@ -514,7 +531,8 @@ class Trinary_expression : public Expression - eei->dot_value, - eei->dot_section, - section_pointer, -- alignment_pointer); -+ alignment_pointer, -+ false); - } - - uint64_t -@@ -528,7 +546,8 @@ class Trinary_expression : public Expression - eei->dot_value, - eei->dot_section, - section_pointer, -- alignment_pointer); -+ alignment_pointer, -+ false); - } - - void -diff --git a/gold/fileread.cc b/gold/fileread.cc -index 80ddfbc..c5dc320 100644 ---- a/gold/fileread.cc -+++ b/gold/fileread.cc -@@ -329,6 +329,10 @@ inline File_read::View* - File_read::find_view(off_t start, section_size_type size, - unsigned int byteshift, File_read::View** vshifted) const - { -+ gold_assert(start <= this->size_ -+ && (static_cast<unsigned long long>(size) -+ <= static_cast<unsigned long long>(this->size_ - start))); -+ - if (vshifted != NULL) - *vshifted = NULL; - -@@ -456,16 +460,9 @@ File_read::make_view(off_t start, section_size_type size, - unsigned int byteshift, bool cache) - { - gold_assert(size > 0); -- -- // Check that start and end of the view are within the file. -- if (start > this->size_ -- || (static_cast<unsigned long long>(size) -- > static_cast<unsigned long long>(this->size_ - start))) -- gold_fatal(_("%s: attempt to map %lld bytes at offset %lld exceeds " -- "size of file; the file may be corrupt"), -- this->filename().c_str(), -- static_cast<long long>(size), -- static_cast<long long>(start)); -+ gold_assert(start <= this->size_ -+ && (static_cast<unsigned long long>(size) -+ <= static_cast<unsigned long long>(this->size_ - start))); - - off_t poff = File_read::page_offset(start); - -@@ -523,6 +520,16 @@ File_read::View* - File_read::find_or_make_view(off_t offset, off_t start, - section_size_type size, bool aligned, bool cache) - { -+ // Check that start and end of the view are within the file. -+ if (start > this->size_ -+ || (static_cast<unsigned long long>(size) -+ > static_cast<unsigned long long>(this->size_ - start))) -+ gold_fatal(_("%s: attempt to map %lld bytes at offset %lld exceeds " -+ "size of file; the file may be corrupt"), -+ this->filename().c_str(), -+ static_cast<long long>(size), -+ static_cast<long long>(start)); -+ - unsigned int byteshift; - if (offset == 0) - byteshift = 0; -diff --git a/gold/gold.cc b/gold/gold.cc -index 12f25b7..693ff79 100644 ---- a/gold/gold.cc -+++ b/gold/gold.cc -@@ -197,46 +197,29 @@ queue_initial_tasks(const General_options& options, - // For incremental links, the base output file. - Incremental_binary* ibase = NULL; - -- if (parameters->incremental()) -- { -- if (options.relocatable()) -- gold_error(_("incremental linking is incompatible with -r")); -- if (options.emit_relocs()) -- gold_error(_("incremental linking is incompatible with --emit-relocs")); -- if (options.gc_sections()) -- gold_error(_("incremental linking is incompatible with --gc-sections")); -- if (options.icf_enabled()) -- gold_error(_("incremental linking is incompatible with --icf")); -- if (options.has_plugins()) -- gold_error(_("incremental linking is incompatible with --plugin")); -- if (strcmp(options.compress_debug_sections(), "none") != 0) -- gold_error(_("incremental linking is incompatible with " -- "--compress-debug-sections")); -- -- if (parameters->incremental_update()) -+ if (parameters->incremental_update()) -+ { -+ Output_file* of = new Output_file(options.output_file_name()); -+ if (of->open_base_file(options.incremental_base(), true)) - { -- Output_file* of = new Output_file(options.output_file_name()); -- if (of->open_base_file(options.incremental_base(), true)) -- { -- ibase = open_incremental_binary(of); -- if (ibase != NULL -- && ibase->check_inputs(cmdline, layout->incremental_inputs())) -- ibase->init_layout(layout); -- else -- { -- delete ibase; -- ibase = NULL; -- of->close(); -- } -- } -- if (ibase == NULL) -+ ibase = open_incremental_binary(of); -+ if (ibase != NULL -+ && ibase->check_inputs(cmdline, layout->incremental_inputs())) -+ ibase->init_layout(layout); -+ else - { -- if (set_parameters_incremental_full()) -- gold_info(_("linking with --incremental-full")); -- else -- gold_fallback(_("restart link with --incremental-full")); -+ delete ibase; -+ ibase = NULL; -+ of->close(); - } - } -+ if (ibase == NULL) -+ { -+ if (set_parameters_incremental_full()) -+ gold_info(_("linking with --incremental-full")); -+ else -+ gold_fallback(_("restart link with --incremental-full")); -+ } - } - - // Read the input files. We have to add the symbols to the symbol -diff --git a/gold/i386.cc b/gold/i386.cc -index 445bc68..efb6248 100644 ---- a/gold/i386.cc -+++ b/gold/i386.cc -@@ -2709,12 +2709,6 @@ Target_i386::Relocate::relocate_tls(const Relocate_info<32, false>* relinfo, - } - if (optimized_type == tls::TLSOPT_TO_IE) - { -- if (tls_segment == NULL) -- { -- gold_assert(parameters->errors()->error_count() > 0 -- || issue_undefined_symbol_error(gsym)); -- return; -- } - this->tls_gd_to_ie(relinfo, relnum, tls_segment, rel, r_type, - got_offset, view, view_size); - break; -@@ -3480,42 +3474,51 @@ Target_i386::do_code_fill(section_size_type length) const - } - - // Nop sequences of various lengths. -- const char nop1[1] = { 0x90 }; // nop -- const char nop2[2] = { 0x66, 0x90 }; // xchg %ax %ax -- const char nop3[3] = { 0x8d, 0x76, 0x00 }; // leal 0(%esi),%esi -- const char nop4[4] = { 0x8d, 0x74, 0x26, 0x00}; // leal 0(%esi,1),%esi -- const char nop5[5] = { 0x90, 0x8d, 0x74, 0x26, // nop -- 0x00 }; // leal 0(%esi,1),%esi -- const char nop6[6] = { 0x8d, 0xb6, 0x00, 0x00, // leal 0L(%esi),%esi -- 0x00, 0x00 }; -- const char nop7[7] = { 0x8d, 0xb4, 0x26, 0x00, // leal 0L(%esi,1),%esi -- 0x00, 0x00, 0x00 }; -- const char nop8[8] = { 0x90, 0x8d, 0xb4, 0x26, // nop -- 0x00, 0x00, 0x00, 0x00 }; // leal 0L(%esi,1),%esi -- const char nop9[9] = { 0x89, 0xf6, 0x8d, 0xbc, // movl %esi,%esi -- 0x27, 0x00, 0x00, 0x00, // leal 0L(%edi,1),%edi -- 0x00 }; -- const char nop10[10] = { 0x8d, 0x76, 0x00, 0x8d, // leal 0(%esi),%esi -- 0xbc, 0x27, 0x00, 0x00, // leal 0L(%edi,1),%edi -- 0x00, 0x00 }; -- const char nop11[11] = { 0x8d, 0x74, 0x26, 0x00, // leal 0(%esi,1),%esi -- 0x8d, 0xbc, 0x27, 0x00, // leal 0L(%edi,1),%edi -- 0x00, 0x00, 0x00 }; -- const char nop12[12] = { 0x8d, 0xb6, 0x00, 0x00, // leal 0L(%esi),%esi -- 0x00, 0x00, 0x8d, 0xbf, // leal 0L(%edi),%edi -- 0x00, 0x00, 0x00, 0x00 }; -- const char nop13[13] = { 0x8d, 0xb6, 0x00, 0x00, // leal 0L(%esi),%esi -- 0x00, 0x00, 0x8d, 0xbc, // leal 0L(%edi,1),%edi -- 0x27, 0x00, 0x00, 0x00, -- 0x00 }; -- const char nop14[14] = { 0x8d, 0xb4, 0x26, 0x00, // leal 0L(%esi,1),%esi -- 0x00, 0x00, 0x00, 0x8d, // leal 0L(%edi,1),%edi -- 0xbc, 0x27, 0x00, 0x00, -- 0x00, 0x00 }; -- const char nop15[15] = { 0xeb, 0x0d, 0x90, 0x90, // jmp .+15 -- 0x90, 0x90, 0x90, 0x90, // nop,nop,nop,... -- 0x90, 0x90, 0x90, 0x90, -- 0x90, 0x90, 0x90 }; -+ const char nop1[1] = { '\x90' }; // nop -+ const char nop2[2] = { '\x66', '\x90' }; // xchg %ax %ax -+ const char nop3[3] = { '\x8d', '\x76', '\x00' }; // leal 0(%esi),%esi -+ const char nop4[4] = { '\x8d', '\x74', '\x26', // leal 0(%esi,1),%esi -+ '\x00'}; -+ const char nop5[5] = { '\x90', '\x8d', '\x74', // nop -+ '\x26', '\x00' }; // leal 0(%esi,1),%esi -+ const char nop6[6] = { '\x8d', '\xb6', '\x00', // leal 0L(%esi),%esi -+ '\x00', '\x00', '\x00' }; -+ const char nop7[7] = { '\x8d', '\xb4', '\x26', // leal 0L(%esi,1),%esi -+ '\x00', '\x00', '\x00', -+ '\x00' }; -+ const char nop8[8] = { '\x90', '\x8d', '\xb4', // nop -+ '\x26', '\x00', '\x00', // leal 0L(%esi,1),%esi -+ '\x00', '\x00' }; -+ const char nop9[9] = { '\x89', '\xf6', '\x8d', // movl %esi,%esi -+ '\xbc', '\x27', '\x00', // leal 0L(%edi,1),%edi -+ '\x00', '\x00', '\x00' }; -+ const char nop10[10] = { '\x8d', '\x76', '\x00', // leal 0(%esi),%esi -+ '\x8d', '\xbc', '\x27', // leal 0L(%edi,1),%edi -+ '\x00', '\x00', '\x00', -+ '\x00' }; -+ const char nop11[11] = { '\x8d', '\x74', '\x26', // leal 0(%esi,1),%esi -+ '\x00', '\x8d', '\xbc', // leal 0L(%edi,1),%edi -+ '\x27', '\x00', '\x00', -+ '\x00', '\x00' }; -+ const char nop12[12] = { '\x8d', '\xb6', '\x00', // leal 0L(%esi),%esi -+ '\x00', '\x00', '\x00', // leal 0L(%edi),%edi -+ '\x8d', '\xbf', '\x00', -+ '\x00', '\x00', '\x00' }; -+ const char nop13[13] = { '\x8d', '\xb6', '\x00', // leal 0L(%esi),%esi -+ '\x00', '\x00', '\x00', // leal 0L(%edi,1),%edi -+ '\x8d', '\xbc', '\x27', -+ '\x00', '\x00', '\x00', -+ '\x00' }; -+ const char nop14[14] = { '\x8d', '\xb4', '\x26', // leal 0L(%esi,1),%esi -+ '\x00', '\x00', '\x00', // leal 0L(%edi,1),%edi -+ '\x00', '\x8d', '\xbc', -+ '\x27', '\x00', '\x00', -+ '\x00', '\x00' }; -+ const char nop15[15] = { '\xeb', '\x0d', '\x90', // jmp .+15 -+ '\x90', '\x90', '\x90', // nop,nop,nop,... -+ '\x90', '\x90', '\x90', -+ '\x90', '\x90', '\x90', -+ '\x90', '\x90', '\x90' }; - - const char* nops[16] = { - NULL, -diff --git a/gold/incremental.cc b/gold/incremental.cc -index b422827..75e44c5 100644 ---- a/gold/incremental.cc -+++ b/gold/incremental.cc -@@ -685,7 +685,7 @@ Sized_incremental_binary<size, big_endian>::do_process_got_plt( - gold_assert(plt_desc >= first_global && plt_desc < symtab_count); - Symbol* sym = this->global_symbol(plt_desc - first_global); - // Add the PLT entry only if the symbol is still referenced. -- if (sym->in_reg()) -+ if (sym != NULL && sym->in_reg()) - { - gold_debug(DEBUG_INCREMENTAL, - "PLT entry %d: %s", -@@ -1966,8 +1966,9 @@ Sized_relobj_incr<size, big_endian>::Sized_relobj_incr( - input_reader_(ibase->inputs_reader().input_file(input_file_index)), - local_symbol_count_(0), output_local_dynsym_count_(0), - local_symbol_index_(0), local_symbol_offset_(0), local_dynsym_offset_(0), -- symbols_(), incr_reloc_offset_(-1U), incr_reloc_count_(0), -- incr_reloc_output_index_(0), incr_relocs_(NULL), local_symbols_() -+ symbols_(), defined_count_(0), incr_reloc_offset_(-1U), -+ incr_reloc_count_(0), incr_reloc_output_index_(0), incr_relocs_(NULL), -+ local_symbols_() - { - if (this->input_reader_.is_in_system_directory()) - this->set_is_in_system_directory(); -@@ -2120,6 +2121,9 @@ Sized_relobj_incr<size, big_endian>::do_add_symbols( - - Symbol* res = symtab->add_from_incrobj(this, name, NULL, &sym); - -+ if (shndx != elfcpp::SHN_UNDEF) -+ ++this->defined_count_; -+ - // If this is a linker-defined symbol that hasn't yet been defined, - // define it now. - if (input_shndx == -1U && !res->is_defined()) -@@ -2283,9 +2287,21 @@ Sized_relobj_incr<size, big_endian>::do_initialize_xindex() - template<int size, bool big_endian> - void - Sized_relobj_incr<size, big_endian>::do_get_global_symbol_counts( -- const Symbol_table*, size_t*, size_t*) const --{ -- gold_unreachable(); -+ const Symbol_table*, -+ size_t* defined, -+ size_t* used) const -+{ -+ *defined = this->defined_count_; -+ size_t count = 0; -+ for (typename Symbols::const_iterator p = this->symbols_.begin(); -+ p != this->symbols_.end(); -+ ++p) -+ if (*p != NULL -+ && (*p)->source() == Symbol::FROM_OBJECT -+ && (*p)->object() == this -+ && (*p)->is_defined()) -+ ++count; -+ *used = count; - } - - // Read the relocs. -@@ -2579,7 +2595,7 @@ Sized_incr_dynobj<size, big_endian>::Sized_incr_dynobj( - : Dynobj(name, NULL), ibase_(ibase), - input_file_index_(input_file_index), - input_reader_(ibase->inputs_reader().input_file(input_file_index)), -- symbols_() -+ symbols_(), defined_count_(0) - { - if (this->input_reader_.is_in_system_directory()) - this->set_is_in_system_directory(); -@@ -2677,6 +2693,7 @@ Sized_incr_dynobj<size, big_endian>::do_add_symbols( - // is meaningless, as long as it's not SHN_UNDEF. - shndx = 1; - v = gsym.get_st_value(); -+ ++this->defined_count_; - } - - osym.put_st_name(0); -@@ -2845,9 +2862,22 @@ Sized_incr_dynobj<size, big_endian>::do_initialize_xindex() - template<int size, bool big_endian> - void - Sized_incr_dynobj<size, big_endian>::do_get_global_symbol_counts( -- const Symbol_table*, size_t*, size_t*) const --{ -- gold_unreachable(); -+ const Symbol_table*, -+ size_t* defined, -+ size_t* used) const -+{ -+ *defined = this->defined_count_; -+ size_t count = 0; -+ for (typename Symbols::const_iterator p = this->symbols_.begin(); -+ p != this->symbols_.end(); -+ ++p) -+ if (*p != NULL -+ && (*p)->source() == Symbol::FROM_OBJECT -+ && (*p)->object() == this -+ && (*p)->is_defined() -+ && (*p)->dynsym_index() != -1U) -+ ++count; -+ *used = count; - } - - // Allocate an incremental object of the appropriate size and endianness. -diff --git a/gold/incremental.h b/gold/incremental.h -index e6732df..56fc52b 100644 ---- a/gold/incremental.h -+++ b/gold/incremental.h -@@ -1996,6 +1996,8 @@ class Sized_relobj_incr : public Sized_relobj<size, big_endian> - unsigned int local_dynsym_offset_; - // The entries in the symbol table for the external symbols. - Symbols symbols_; -+ // Number of symbols defined in object file itself. -+ size_t defined_count_; - // The offset of the first incremental relocation for this object. - unsigned int incr_reloc_offset_; - // The number of incremental relocations for this object. -@@ -2127,6 +2129,8 @@ class Sized_incr_dynobj : public Dynobj - Input_entry_reader input_reader_; - // The entries in the symbol table for the external symbols. - Symbols symbols_; -+ // Number of symbols defined in object file itself. -+ size_t defined_count_; - }; - - // Allocate an incremental object of the appropriate size and endianness. -diff --git a/gold/layout.cc b/gold/layout.cc -index 1c32bcf..9d8a43a 100644 ---- a/gold/layout.cc -+++ b/gold/layout.cc -@@ -2975,8 +2975,9 @@ Layout::segment_precedes(const Output_segment* seg1, - - // We shouldn't get here--we shouldn't create segments which we - // can't distinguish. Unless of course we are using a weird linker -- // script. -- gold_assert(this->script_options_->saw_phdrs_clause()); -+ // script or overlapping --section-start options. -+ gold_assert(this->script_options_->saw_phdrs_clause() -+ || parameters->options().any_section_start()); - return false; - } - -diff --git a/gold/options.cc b/gold/options.cc -index be32645..dcf6ba7 100644 ---- a/gold/options.cc -+++ b/gold/options.cc -@@ -198,7 +198,7 @@ parse_uint(const char* option_name, const char* arg, int* retval) - { - char* endptr; - *retval = strtol(arg, &endptr, 0); -- if (*endptr != '\0' || retval < 0) -+ if (*endptr != '\0' || *retval < 0) - gold_fatal(_("%s: invalid option value (expected an integer): %s"), - option_name, arg); - } -@@ -1224,6 +1224,37 @@ General_options::finalize() - gold_fatal(_("Options --incremental-changed, --incremental-unchanged, " - "--incremental-unknown require the use of --incremental")); - -+ // Check for options that are not compatible with incremental linking. -+ // Where an option can be disabled without seriously changing the semantics -+ // of the link, we turn the option off; otherwise, we issue a fatal error. -+ -+ if (this->incremental_mode_ != INCREMENTAL_OFF) -+ { -+ if (this->relocatable()) -+ gold_fatal(_("incremental linking is not compatible with -r")); -+ if (this->emit_relocs()) -+ gold_fatal(_("incremental linking is not compatible with " -+ "--emit-relocs")); -+ if (this->has_plugins()) -+ gold_fatal(_("incremental linking is not compatible with --plugin")); -+ if (this->gc_sections()) -+ { -+ gold_warning(_("ignoring --gc-sections for an incremental link")); -+ this->set_gc_sections(false); -+ } -+ if (this->icf_enabled()) -+ { -+ gold_warning(_("ignoring --icf for an incremental link")); -+ this->set_icf_status(ICF_NONE); -+ } -+ if (strcmp(this->compress_debug_sections(), "none") != 0) -+ { -+ gold_warning(_("ignoring --compress-debug-sections for an " -+ "incremental link")); -+ this->set_compress_debug_sections("none"); -+ } -+ } -+ - // FIXME: we can/should be doing a lot more sanity checking here. - } - -diff --git a/gold/options.h b/gold/options.h -index 768df9c..8876a1e 100644 ---- a/gold/options.h -+++ b/gold/options.h -@@ -791,6 +791,10 @@ class General_options - DEFINE_bool(g, options::EXACTLY_ONE_DASH, '\0', false, - N_("Ignored"), NULL); - -+ DEFINE_bool(gnu_unique, options::TWO_DASHES, '\0', true, -+ N_("Enable STB_GNU_UNIQUE symbol binding (default)"), -+ N_("Disable STB_GNU_UNIQUE symbol binding")); -+ - DEFINE_string(soname, options::ONE_DASH, 'h', NULL, - N_("Set shared library name"), N_("FILENAME")); - -@@ -1385,6 +1389,11 @@ class General_options - bool - section_start(const char* secname, uint64_t* paddr) const; - -+ // Return whether any --section-start option was used. -+ bool -+ any_section_start() const -+ { return !this->section_starts_.empty(); } -+ - enum Fix_v4bx - { - // Leave original instruction. -diff --git a/gold/output.cc b/gold/output.cc -index 29d8e3d..a7e1e9a 100644 ---- a/gold/output.cc -+++ b/gold/output.cc -@@ -119,7 +119,9 @@ extern "C" void *gold_mremap(void *, size_t, size_t, int); - static int - posix_fallocate(int o, off_t offset, off_t len) - { -- return ftruncate(o, offset + len); -+ if (ftruncate(o, offset + len) < 0) -+ return errno; -+ return 0; - } - #endif // !defined(HAVE_POSIX_FALLOCATE) - -@@ -706,7 +708,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - bool is_symbolless) - : address_(address), local_sym_index_(GSYM_CODE), type_(type), - is_relative_(is_relative), is_symbolless_(is_symbolless), -- is_section_symbol_(false), shndx_(INVALID_CODE) -+ is_section_symbol_(false), use_plt_offset_(false), shndx_(INVALID_CODE) - { - // this->type_ is a bitfield; make sure TYPE fits. - gold_assert(this->type_ == type); -@@ -727,7 +729,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - bool is_symbolless) - : address_(address), local_sym_index_(GSYM_CODE), type_(type), - is_relative_(is_relative), is_symbolless_(is_symbolless), -- is_section_symbol_(false), shndx_(shndx) -+ is_section_symbol_(false), use_plt_offset_(false), shndx_(shndx) - { - gold_assert(shndx != INVALID_CODE); - // this->type_ is a bitfield; make sure TYPE fits. -@@ -749,10 +751,12 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address, - bool is_relative, - bool is_symbolless, -- bool is_section_symbol) -+ bool is_section_symbol, -+ bool use_plt_offset) - : address_(address), local_sym_index_(local_sym_index), type_(type), - is_relative_(is_relative), is_symbolless_(is_symbolless), -- is_section_symbol_(is_section_symbol), shndx_(INVALID_CODE) -+ is_section_symbol_(is_section_symbol), use_plt_offset_(use_plt_offset), -+ shndx_(INVALID_CODE) - { - gold_assert(local_sym_index != GSYM_CODE - && local_sym_index != INVALID_CODE); -@@ -773,10 +777,12 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address, - bool is_relative, - bool is_symbolless, -- bool is_section_symbol) -+ bool is_section_symbol, -+ bool use_plt_offset) - : address_(address), local_sym_index_(local_sym_index), type_(type), - is_relative_(is_relative), is_symbolless_(is_symbolless), -- is_section_symbol_(is_section_symbol), shndx_(shndx) -+ is_section_symbol_(is_section_symbol), use_plt_offset_(use_plt_offset), -+ shndx_(shndx) - { - gold_assert(local_sym_index != GSYM_CODE - && local_sym_index != INVALID_CODE); -@@ -799,7 +805,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address) - : address_(address), local_sym_index_(SECTION_CODE), type_(type), - is_relative_(false), is_symbolless_(false), -- is_section_symbol_(true), shndx_(INVALID_CODE) -+ is_section_symbol_(true), use_plt_offset_(false), shndx_(INVALID_CODE) - { - // this->type_ is a bitfield; make sure TYPE fits. - gold_assert(this->type_ == type); -@@ -820,7 +826,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address) - : address_(address), local_sym_index_(SECTION_CODE), type_(type), - is_relative_(false), is_symbolless_(false), -- is_section_symbol_(true), shndx_(shndx) -+ is_section_symbol_(true), use_plt_offset_(false), shndx_(shndx) - { - gold_assert(shndx != INVALID_CODE); - // this->type_ is a bitfield; make sure TYPE fits. -@@ -842,7 +848,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address) - : address_(address), local_sym_index_(0), type_(type), - is_relative_(false), is_symbolless_(false), -- is_section_symbol_(false), shndx_(INVALID_CODE) -+ is_section_symbol_(false), use_plt_offset_(false), shndx_(INVALID_CODE) - { - // this->type_ is a bitfield; make sure TYPE fits. - gold_assert(this->type_ == type); -@@ -858,7 +864,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address) - : address_(address), local_sym_index_(0), type_(type), - is_relative_(false), is_symbolless_(false), -- is_section_symbol_(false), shndx_(shndx) -+ is_section_symbol_(false), use_plt_offset_(false), shndx_(shndx) - { - gold_assert(shndx != INVALID_CODE); - // this->type_ is a bitfield; make sure TYPE fits. -@@ -877,7 +883,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Output_reloc( - Address address) - : address_(address), local_sym_index_(TARGET_CODE), type_(type), - is_relative_(false), is_symbolless_(false), -- is_section_symbol_(false), shndx_(INVALID_CODE) -+ is_section_symbol_(false), use_plt_offset_(false), shndx_(INVALID_CODE) - { - // this->type_ is a bitfield; make sure TYPE fits. - gold_assert(this->type_ == type); -@@ -894,7 +900,7 @@ Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::Outp |