Fix an issue with the SEGMENT_START builtin function where its result is
absolute when taken from the default supplied, and section-relative when
taken from a `-T' command-line override. This is against documentation,
inconsistent and unexpected, and with PIE executables gives an incorrect
result with the `__executable_start' symbol.
Make the result of SEGMENT_START always section-relative then.
ld/
* ldexp.c (fold_binary): Always make the result of SEGMENT_START
section-relative.
* testsuite/ld-scripts/segment-start.d: New test.
* testsuite/ld-scripts/segment-start.ld: New test linker script.
* testsuite/ld-scripts/segment-start.s: New test source.
* testsuite/ld-scripts/script.exp: Run the new test.
git commit 702d16713 broke expressions using CONSTANT(COMMONPAGESIZE)
in ALIGN or SUBALIGN of output section statements, because these
optional fields were evaluated at script parse time and the patch in
question delayed setting of config.commonpagesize. The right thing to
do is keep the tree representation of those fields for later
evaluation.
PR 23571
* ldlang.h (section_alignment): Make it an expression tree.
(subsection_alignment): Likewise.
* ldlang.c (topower): Delete.
(output_section_statement_newfunc): Adjust initialization.
(init_os): Evaluate section_alignment.
(lang_size_sections_1): Likewise.
(size_input_section): Evaluate subsection_alignment.
(lang_enter_output_section_statement): Don't evaluate here.
(lang_new_phdr): Use exp_get_vma rather than exp_get_value_int.
* ldexp.h (exp_get_value_int): Delete.
(exp_get_power): Declare.
* ldexp.c (exp_get_value_int): Delete.
(exp_get_power): New function.
* emultempl/pe.em (place_orphan): Build expression for section
alignment.
* emultempl/pep.em (place_orphan): Likewise.
* testsuite/ld-scripts/pr23571.d,
* testsuite/ld-scripts/pr23571.t: New test.
* testsuite/ld-scripts/align.exp: Run it.
When -z separate-code, which is enabled by default for Linux/x86, is
used to create executable, ld won't place any data in the code-only
PT_LOAD segment. If there are no data sections placed before the
code-only PT_LOAD segment, the program headers won't be mapped into
any PT_LOAD segment. When the executable tries to access it (based
on the program header address passed in AT_PHDR), it will lead to
segfault. This patch inserts a GNU_PROPERTY_X86_ISA_1_USED note if
there may be no data sections before the text section so that the
first PT_LOAD segment won't be code-only and will contain the program
header.
Testcases are adjusted to either pass "-z noseparate-code" to ld or
discard the .note.gnu.property section. A Linux/x86 run-time test is
added.
bfd/
PR ld/23428
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): If the
separate code program header is needed, make sure that the first
read-only PT_LOAD segment has no code by adding a
GNU_PROPERTY_X86_ISA_1_USED note.
ld/
PR ld/23428
* testsuite/ld-elf/linux-x86.S: New file.
* testsuite/ld-elf/linux-x86.exp: Likewise.
* testsuite/ld-elf/pr23428.c: Likewise.
* testsuite/ld-elf/sec64k.exp: Pass "-z noseparate-code" to ld
for Linux/x86 targets.
* testsuite/ld-i386/abs-iamcu.d: Likewise.
* testsuite/ld-i386/abs.d: Likewise.
* testsuite/ld-i386/pr12718.d: Likewise.
* testsuite/ld-i386/pr12921.d: Likewise.
* testsuite/ld-x86-64/abs-k1om.d: Likewise.
* testsuite/ld-x86-64/abs-l1om.d: Likewise.
* testsuite/ld-x86-64/abs.d: Likewise.
* testsuite/ld-x86-64/pr12718.d: Likewise.
* testsuite/ld-x86-64/pr12921.d: Likewise.
* testsuite/ld-linkonce/zeroeh.ld: Discard .note.gnu.property
section.
* testsuite/ld-scripts/print-memory-usage.t: Likewise.
* testsuite/ld-scripts/size-2.t: Likewise.
* testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Use ld
to create executable if language is "asm".
git commit 624940689a wrongly changed fill.d and fill16.d notarget
entries to xfail, so revert that change and instead replace notarget
with skip. The two tests are complementary.
This patch also modifies the pr20022 test to use .data, avoiding
xfails on targets that complain about dynamic relocations in .text.
This shows a bug in metag which discards section _foo in pr2022.so.
* testsuite/ld-elf/hash.d: Comment on mips xfail.
* testsuite/ld-gc/pr20022b.s: Use .data not .text.
* testsuite/ld-gc/pr20022.d: Remove xfails.
* testsuite/ld-scripts/fill.d: Revert most of last patch, but use
skip rather than notarget.
* testsuite/ld-scripts/fill16.d: Likewise.
In a linker script, a sequence like this:
foo = ADDR (.some_section);
bar = foo;
PROVIDE (foo = 0);
will result in 'bar = ADDR (.some_section)' and 'foo = 0', which seems
like incorrect behaviour, foo is clearly defined elsewhere, and so the
PROVIDE should not trigger.
The problem is that an expression like this:
foo = ADDR (.some_section);
can't be evaluated until a late phase of the linker, due to the need
for the section '.some_section' to have been placed, then the PROVIDE
was being marked as being used during an earlier phase. At the end of
the link, both lines:
foo = ADDR (.some_section);
PROVIDE (foo = 0);
are active, and this causes the final value of 'foo' to be 0.
The solution proposed in this commit is that, during earlier phases of
the linker, when we see the expression 'foo = ADDR (.some_section);',
instead of ignoring the expression, we create a "fake" definition of
'foo'. The existence of this "fake" definition prevents the PROVIDE
from being marked used, and during the final phase the real definition
of 'foo' will replace the "fake" definition.
The new test provide-6 covers the exact case described above. The
provide-7 test is similar to the above, but using constant
expressions, this was never broken, but is added here to increase
coverage.
The provide-8 case also didn't fail before this commit, but I did
manage to break this case during development of this patch. This case
was only covered by a mmix test before, so I've added this here to
increase coverage.
ld/ChangeLog:
* ldexp.c (exp_fold_tree_1): Rework condition underwhich provide
nodes are ignored in the tree walk, and move the location at which
we change provide nodes into provided nodes.
(exp_init_os): Add etree_provided.
* testsuite/ld-scripts/provide-6.d: New file.
* testsuite/ld-scripts/provide-6.t: New file.
* testsuite/ld-scripts/provide-7.d: New file.
* testsuite/ld-scripts/provide-7.t: New file.
* testsuite/ld-scripts/provide-8.d: New file.
* testsuite/ld-scripts/provide-8.t: New file.
Find the ld-script/provide-*.d tests using a wildcard, then run them in
a loop. This will make it easier to add more tests in the future. Some
associated clean up is required.
ld/ChangeLog:
* testsuite/ld-scripts/provide-3.d: Add xfail directive.
* testsuite/ld-scripts/provide-4.d: Use new map file name.
* testsuite/ld-scripts/provide-5.d: Use new map file name.
* testsuite/ld-scripts/provide-4-map.d: Renamed to...
* testsuite/ld-scripts/provide-4.map: ...this.
* testsuite/ld-scripts/provide-5-map.d: Renamed to...
* testsuite/ld-scripts/provide-5.map: ...this.
* testsuite/ld-scripts/provide.exp: Move xfail into provide-3.d
file, and run tests in a loop.
Currently when recording a PROVIDE statement in a linker map file we
display something like:
PROVIDE (SYMBOL, VALUE)
However, in a linker script we write these statements like this:
PROVIDE (SYMBOL = VALUE);
This commit changes the output in the map file to be closer to linker
script format, the map file now contains:
PROVIDE (SYMBOL = VALUE)
The ';' is still missing from the end, but map files are not intended
to be valid linker script input, so adding the ';' just seems like
clutter.
ld/ChangeLog:
* ldexp.c (exp_print_tree): Use '=' instead of ',' when printing
PROVIDE statements.
* testsuite/ld-scripts/provide-4.map: Update expected output.
* testsuite/ld-scripts/provide-5.map: Likewise.
Don't allow '~' as the first character in symbol name in linker script.
PR ld/22267
* ldlex.l (SYMBOLNAMECHAR1) New.
(DEFSYMEXP): Replace FILENAMECHAR1 with SYMBOLNAMECHAR1.
(EXPRESSION): Likewise.
* testsuite/ld-scripts/expr.exp: Run pr22267.
* testsuite/ld-scripts/pr22267.d: New file.
* testsuite/ld-scripts/pr22267.s: Likewise.
* testsuite/ld-scripts/pr22267.t: Likewise.
* ldgram.y (ldgram_had_keep): Make static.
(ldgram_vers_current_lang): Likewise.
(filename_spec): New rule.
(input_section_spec_no_keep): Use filename_spec.
(wildcard_maybe_exclude): New rule.
(wildcard_spec): Rename to...
(section_name_spec): ...this.
(section_NAME_list): Rename to...
(section_name_list): ...this.
(section_name_spec): Simplifiy and use wildcard_maybe_exclude.
* ldlang.c (placed_commons): Delete.
(lang_add_wild): No longer set placed_commons.
(print_wild_statement): Use full names for SORT specifiers.
* testsuite/ld-scripts/align.exp: Run new tests.
* testsuite/ld-scripts/align3.d: New file.
* testsuite/ld-scripts/align3.t: New file.
* testsuite/ld-scripts/align4.d: New file.
* testsuite/ld-scripts/align4.t: New file.
* testsuite/ld-scripts/align5.d: New file.
* testsuite/ld-scripts/align5.t: New file.
* testsuite/ld-scripts/exclude-file-5.d: New file.
* testsuite/ld-scripts/exclude-file-5.map: New file.
* testsuite/ld-scripts/exclude-file-5.t: New file.
* testsuite/ld-scripts/exclude-file-6.d: New file.
* testsuite/ld-scripts/exclude-file-6.map: New file.
* testsuite/ld-scripts/exclude-file-6.t: New file.
* NEWS: Mention the changes.
Complement commit ffe54b3798 ("Pad sections according to current
script FILL.") and add a FILL script statement test for targets that
impose the minimum alignment of more than 2**2 for the `.text' section.
These targets include IA-64 targets, MIPS targets other than bare-metal
ELF and VxWorks, TILE-Gx targets, TILEPro targets and X86-64 PE targets.
Use the `notarget' tag for configuration triplets that are incompatible
with the new test, but are supported by the existing FILL test, and
`xfail' for ones that have issues due to section alignment or padding
with both tests. Make a complementary change to the existing FILL test,
removing the following test issues:
arm-epoc-pe -FAIL: ld-scripts/fill
mips-elf -XPASS: ld-scripts/fill
mips-img-elf -XPASS: ld-scripts/fill
mips-mti-elf -XPASS: ld-scripts/fill
mips-sde-elf -XPASS: ld-scripts/fill
mips-vxworks -XPASS: ld-scripts/fill
mipsel-elf -XPASS: ld-scripts/fill
mipsel-img-elf -XPASS: ld-scripts/fill
mipsel-mti-elf -XPASS: ld-scripts/fill
mipsel-vxworks -XPASS: ld-scripts/fill
mipsisa32-elf -XPASS: ld-scripts/fill
mipsisa32el-elf -XPASS: ld-scripts/fill
mipsisa64-elf -XPASS: ld-scripts/fill
mipsisa64el-elf -XPASS: ld-scripts/fill
tilegx-linux -FAIL: ld-scripts/fill
tilepro-elf -FAIL: ld-scripts/fill
tx39-elf -XPASS: ld-scripts/fill
ld/
* testsuite/ld-scripts/fill.d: Adjust `xfail' entries. Add
`notarget' entries. Update comments.
* testsuite/ld-scripts/fill16.d: New test.
* testsuite/ld-scripts/fill16_0.s: New test source.
* testsuite/ld-scripts/fill16_1.s: New test source.
* testsuite/ld-scripts/fill16_2.s: New test source.
* testsuite/ld-scripts/data.exp: Run the new test.
PR ld/21251
* ldfile.c (ldfile_add_library_path): If the path starts with
$SYSROOT then use the sysroot as the real prefix.
* ldlang.c (lang_add_input_file): Treat $SYSROOT in the same
way as =.
* ldlex.l: Add $SYSROOT as allow prefix for a filename.
* ld.texinfo (-L): Document that $SYSROOT acts like = when
prefixing a library search path.
(INPUT): Likewise.
* testsuite/ld-scripts/sysroot-prefix.exp: Add $SYSROOT prefix
tests.
HPUX has a different .comm syntax, and anything in the first column
is a label.
gas/
* testsuite/gas/elf/strtab.s: Don't put directives on first
column or continuation with labels not in first column.
ld/
* testsuite/ld-elf/elf.exp: Xfail pr20995 tests on hppa64-hpux.
Set up HPUX defsym. Run pr14170 tests and build symbol3 objects,
defining HPUX where necessary. Define HPUX for implib tests.
* testsuite/ld-elf/comm-data4.d: Run for hpux.
* testsuite/ld-elf/endsym.d: Likewise.
* testsuite/ld-elf/linkoncerdiff.d: Likewise.
* testsuite/ld-elf/comm-data4.s: Add alternate .comm when HPUX.
* testsuite/ld-elf/comm-data5.s: Likewise.
* testsuite/ld-elf/endsym.s: Likewise.
* testsuite/ld-elf/pr14170c.s: Likewise.
* testsuite/ld-elf/symbol3.s: Likewise.
* testsuite/ld-elf/implib.s: Likewise. Don't start directives
in first column.
* testsuite/ld-elf/linkoncerdiff2.s: Don't use numeric labels.
* testsuite/ld-elf/warn3.d: Run for hpux.
* testsuite/ld-scripts/rgn-at10.d: Xfail for hpux.
* testsuite/ld-scripts/rgn-at11.d: Likewise.
* testsuite/ld-scripts/size-2.d: Remove xfail for hpux.
I misunderstood the hppa alias problem. File offsets of segments need
to be such that no page is mapped twice with different permissions.
(Which still seems to me like something the kernel could fix, but
anyhow, this is not so difficult to achieve in ld.)
PR 21000
bfd/
* elf-bfd.h (struct elf_backend_data): Add no_page_alias.
* elfxx-target.h (elf_backend_no_page_alias): Define.
(elfNN_bed): Init new field.
* elf.c (assign_file_positions_for_load_sections): If no_page_alias
ensure PT_LOAD segment starts on a new page.
* elf32-hppa.c (elf_backend_no_page_alias): Define.
ld/
* testsuite/ld-elf/loadaddr1.d: Adjust for hppa file offsets.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-elf/loadaddr3a.d: Likewise.
* testsuite/ld-scripts/rgn-at5.d: Likewise.
Many of the ld tests are not run for cross builds, in some cases
because the test needs to run a newly linked executable, and in others
simply because it was easier to write the test for native only. Even
when a test needs to run, it's good to compile and link to exercise
the linker. So that's what this patch does. I've also rid us of
the old ld_link procedure with all the HOSTING_CRT0 etc. setup. It's
much simpler to just link with $CC.
This does mean that a cross build with cross-compiler installed but
no cross C-library will give lots of failures. If that turns out to
be too annoying, I guess we can write a tcl procedure to detect it and
not run all the extra tests.
* Makefile.am (bootstrap): Delete rule.
(ld-partial, ld1, ld1-full, ld2, ld3): Likewise.
(HOSTING_CRT0, HOSTING_SCRT0): Don't define.
(HOSTING_LIBS, HOSTING_SLIBS, HOSTING_EMU): Likewise.
* configure.ac (HOSTING_CRT0, HOSTING_SCRT0): Don't define.
(HOSTING_LIBS, HOSTING_SLIBS): Likewise.
* configure.host (HOSTING_CRT0, HOSTING_LIBS): Don't define.
* Makefile.in: Regenerate.
* configure: Regenerate.
* testsuite/config/default.exp (get_link_files): Delete.
(HOSTING_CRT0, HOSTING_SCRT0, HOSTING_LIBS, HOSTING_SLIBS): Don't
define.
(ld_simple_link): Delete.
* testsuite/lib/ld-lib.exp (default_ld_link): Delete
(default_ld_simple_link): Rename to default_ld_link.
(ld_simple_link_defsyms): Rename to ld_link_defsyms.
(run_ld_link_tests): Use ld_link, not ld_simple_link.
(run_cc_link_tests): Likewise.
(run_ld_link_exec_tests): Use $CC or $CXX to link, not $ld.
Don't run exe when not native, and return unsupported.
* testsuite/ld-bootstrap/bootstrap.exp: Create gccld1 etc. dirs.
Link ld1 etc. using $CC.
* testsuite/ld-cdtest/cdtest.exp: Link cdtest using $CC.
* testsuite/ld-checks/checks.exp: Use ld_link, not ld_simple_link.
* testsuite/ld-cygwin/exe-export.exp: Likewise.
* testsuite/ld-elf/binutils.exp: Likewise.
* testsuite/ld-elf/eh-group.exp: Likewise.
* testsuite/ld-elf/exclude.exp: Likewise.
* testsuite/ld-elf/frame.exp: Likewise.
* testsuite/ld-elf/sec-to-seg.exp: Likewise.
* testsuite/ld-elf/tls_common.exp: Likewise.
* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
* testsuite/ld-fastcall/fastcall.exp: Likewise.
* testsuite/ld-gc/gc.exp: Likewise.
* testsuite/ld-ifunc/binutils.exp: Likewise.
* testsuite/ld-mep/mep.exp: Likewise.
* testsuite/ld-mips-elf/mips-elf-flags.exp: Likewise.
* testsuite/ld-mn10300/mn10300.exp: Likewise.
* testsuite/ld-nios2/nios2.exp: Likewise.
* testsuite/ld-pe/pe-compile.exp: Likewise.
* testsuite/ld-pe/pe-run.exp: Likewise.
* testsuite/ld-pe/pe-run2.exp: Likewise.
* testsuite/ld-plugin/plugin.exp: Likewise.
* testsuite/ld-scripts/align.exp: Likewise.
* testsuite/ld-scripts/alignof.exp: Likewise.
* testsuite/ld-scripts/assert.exp: Likewise.
* testsuite/ld-scripts/defined.exp: Likewise.
* testsuite/ld-scripts/extern.exp: Likewise.
* testsuite/ld-scripts/log2.exp: Likewise.
* testsuite/ld-scripts/map-address.exp: Likewise.
* testsuite/ld-scripts/phdrs.exp: Likewise.
* testsuite/ld-scripts/phdrs2.exp: Likewise.
* testsuite/ld-scripts/script.exp: Likewise.
* testsuite/ld-scripts/section-flags.exp: Likewise.
* testsuite/ld-scripts/sizeof.exp: Likewise.
* testsuite/ld-scripts/sysroot-prefix.exp: Likewise.
* testsuite/ld-scripts/weak.exp: Likewise.
* testsuite/ld-selective/selective.exp: Likewise.
* testsuite/ld-sh/sh.exp: Likewise.
* testsuite/ld-sh/sh64/relax.exp: Likewise.
* testsuite/ld-sh/sh64/relfail.exp: Likewise.
* testsuite/ld-srec/srec.exp: Likewise.
* testsuite/ld-tic6x/tic6x.exp: Likewise.
* testsuite/ld-undefined/weak-undef.exp: Likewise.
* testsuite/ld-versados/versados.exp: Likewise.
* testsuite/ld-x86-64/dwarfreloc.exp: Likewise.
* testsuite/ld-xtensa/coalesce.exp: Likewise.
* testsuite/ld-xtensa/diff_overflow.exp: Likewise.
* testsuite/ld-xtensa/lcall.exp: Likewise.
* testsuite/ld-elf/audit.exp: Run non-native too.
* testsuite/ld-elf/compress.exp: Likewise. Replace ld options with
gcc -Wl, options.
* testsuite/ld-elf/dwarf.exp: Run non-native too. Use ld_link,
not ld_simple_link. Add -Wl,--no-as-needed to some tests.
* testsuite/ld-elf/elf.exp: Run non-native too. Formatting.
* testsuite/ld-elf/indirect.exp: Run non-native too. Add
-Wl,--no-as-needed to most tests.
* testsuite/ld-elf/shared.exp: Run non-native too. Use braces
to simplify quoting. Set run_tests using [list] rather than
brace assignment to expand $extralibs. Add -Wl,--no-as-needed
to many test. Prefix ld options with -Wl,.
(mix_pic_and_non_pic): Don't run exe if not native.
* testsuite/ld-elf/wrap.exp: Run non-native too. Add
-Wl,--no-as-needed and prefix ld options with -Wl,.
* testsuite/ld-elfvers/vers.exp: Run non-native too. Use ld_link,
not ld_simple_link.
* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
(visibility_test): Don't run exe if not native.
* testsuite/ld-elfweak/elfweak.exp: Run non-native too. Use ld_link,
not ld_simple_link.
(build_exec): Don't run exe if not native.
* testsuite/ld-ifunc/ifunc.exp: Run non-native too. Use ld_link,
not ld_simple_link. Link using $CC. Add -Wl,--no-as-needed
to some tests and prefix ld options with -Wl,. Expect GNU
for hppa-linux even when no ifuncs. Delete cleanup.
* testsuite/ld-pie/pie.exp: Run non-native too.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-shared/shared.exp: Likewise. Use ld_link,
not ld_simple_link.
(shared_test): Don't run exe if not native.
* testsuite/ld-size/size.exp: Run non-native too. Add
-Wl,--no-as-needed to some tests. Prefix ld options with -Wl,.
* testsuite/ld-unique/unique.exp: Run non-native too. Use ld_link,
not ld_simple_link. Link using $CC. Add -Wl,--no-as-needed
to some tests and prefix ld options with -Wl,. Expect GNU
for hppa-linux even when no unique syms. Delete cleanup.
* testsuite/ld-x86-64/tls.exp: Add -Wl,--no-as-needed to some
tests and prefix ld options with -Wl,.
* testsuite/ld-x86-64/x86-64.exp: Use ld_link, not ld_simple_link.
Add -Wl,--no-as-needed to some tests. Prefix ld options with -Wl,.
We don't want to report a test failure as a tcl error.
* testsuite/ld-scripts/sysroot-prefix.exp (sysroot_prefix_test_setup):
Call perror rather than error on "as" or "ar" failures.
gas/
* doc/c-lm32.texi: Fix chars with high bit set.
* testsuite/gas/bfin/vector2.s: Likewise.
gold/
* arm.cc: Fix comment chars with high bit set.
include/
* coff/pe.h: Fix comment chars with high bit set.
* opcode/xgate.h: Likewise.
ld/
* testsuite/ld-scripts/sysroot-prefix.exp: Fix chars with high bit set.
RX does horrible fudges to PT_LOAD p_vaddr, that affect the testsuite
and mean the target won't support dynamic objects. The latter
probably doesn't matter too much since RX is an embedded target, but
it's easy to stop some of the fudges in order to reduce special cases
for RX in the testsuite. The changes make sense in isolation too.
bfd/
* elf32-rx.c (elf32_rx_modify_program_headers): Don't adjust
segments that include the ELF file header or program headers.
ld/
* testsuite/ld-elf/flags1.d: Run for RX.
* testsuite/ld-scripts/phdrs.exp: Likewise.
* testsuite/ld-scripts/pr14962.d: Likewise.
* testsuite/ld-scripts/pr14962-2.d: Likewise.
PR ld/20815
bfd * elf.c (elf_modify_segment_map): Allow empty LOAD segments if
they contain the program headers.
(_bfd_elf_map_sections_to_segments): If the linker created the
PHDR segment then always attempt to include it in a LOAD segment.
(assign_file_positions_for_non_load_sections): Allow LOAD segments
to overlap PHDR segments.
(phdr_sorter): New function. Sorts program headers.
(assign_file_positions_except_relocs): Sort the program headers
before writing them out. Issue an error if the PHDR segment is
not covered by a LOAD segment, unless the backend allows it.
* elf-bfd.h (struct elf_backend_data): Add
elf_backend_allow_non_load_phdr.
* elfxx-target.h (elf_backend_allow_non_load_phdr): Provide
default definition that returns FALSE.
(elfNN_bed): Initialise the elf_backend_allow_non_load_phdr
field.
* elf64-hppa.c (elf64_hppa_allow_non_load_phdr): New function.
Returns TRUE.
(elf_backend_allow_non_load_phdr): Define.
* elf-m10300.c (_bfd_mn10300_elf_size_dynamic_sections): Do not
place the interpreter string into the .interp section if the
nointerp flag is set in the link info structure.
* elf32-arc.c (elf_arc_size_dynamic_sections): Likewise.
* elf32-score7.c (score_elf_final_link_relocate): Allow for the
_gp symbol not being part of the output.
binutils* readelf.c (process_program_headers): Check PT_LOAD and PT_PHDR
segments for validity.
ld * ld.texinfo: Note that PT_TLS can be used as a segment type.
* testsuite/ld-discard/discard.ld: Add space for program headers.
* testsuite/ld-elf/flags1.ld: Likewise.
* testsuite/ld-elf/maxpage3.t: Likewise.
* testsuite/ld-elf/noload-1.t: Likewise.
* testsuite/ld-elf/orphan.ld: Likewise.
* testsuite/ld-elf/overlay.t: Likewise.
* testsuite/ld-elf/pr14052.t: Likewise.
* testsuite/ld-elf/pr19539.t: Likewise.
* testsuite/ld-elf/provide-hidden-1.ld: Likewise.
* testsuite/ld-elf/provide-hidden-s.ld: Likewise.
* testsuite/ld-elf/weak-dyn-1.ld: Likewise.
* testsuite/ld-i386/pr19539.t: Likewise.
* testsuite/ld-scripts/defined.t: Likewise.
* testsuite/ld-scripts/defined6.t: Likewise.
* testsuite/ld-scripts/dynamic-sections.t: Likewise.
* testsuite/ld-scripts/empty-aligned.t: Likewise.
* testsuite/ld-scripts/provide-2.t: Likewise.
* testsuite/ld-scripts/provide-4.t: Likewise.
* testsuite/ld-vax-elf/plt-local.ld: Likewise.
* testsuite/ld-x86-64/pr19539.t: Likewise.
* testsuite/ld-elf/ehdr_start-missing.d: Do not initialise the
dynamic linker.
* testsuite/ld-elf/ehdr_start-weak.d: Likewise.
* testsuite/ld-elf/elf.exp (pr14170, pr17068): Likewise.
* testsuite/ld-elf/loadaddr1.d: Update expected readelf output.
* testsuite/ld-elf/noload-2.d: Likewise.
* testsuite/ld-powerpc/vxworks2.sd: Likewise.
* testsuite/ld-scripts/phdrs3a.d: Likewise.
* testsuite/ld-scripts/size-2.d: Likewise.
* testsuite/ld-elf/group.ld: Add program headers.
* testsuite/ld-elf/overlay.d: Skip for SPU.
* testsuite/ld-elf/flags1.d: Skip for RX.
* testsuite/ld-elf/pr19162.d: Skip for HPPA64.
* testsuite/ld-elf/pr19539.d: Skip for ALPHA.
* testsuite/ld-scripts/empty-orphan.t: Update program headers.
* testsuite/ld-scripts/size-2.t: Likewise.
Currently the EXCLUDE_FILE linker script construct can only be used
within the input section list, and applied only to the section pattern
immediately following the EXCLUDE_FILE. For example:
*.o (EXCLUDE_FILE (a.o) .text .rodata)
In this case all sections matching '.text' are included from all files
matching '*.o' but not from the file 'a.o'. All sections matching
'.rodata' are also included from all files matching '*.o' (incluing from
'a.o').
If the user wants to restrict the inclusion of section '.rodata' so that
this too is not taken from the file 'a.o' then the above example must be
extended like this:
*.o (EXCLUDE_FILE (a.o) .text EXCLUDE_FILE (a.o) .rodata)
However, due to the internal grammar of the linker script language the
snippet 'EXCLUDE_FILE (a.o) .text' is parsed by a pattern called
'wildcard_spec'. The same 'wildcard_spec' pattern is also used to parse
the input file name snippet '*.o' in the above examples. As a result of
this pattern reuse within the linker script grammar then the following
is also a valid linker script construct:
EXCLUDE_FILE (a.o) *.o (.text .rodata)
However, though the linker accepts this without complaint the
EXCLUDE_FILE part is silently ignored and has no effect.
This commit takes this last example and makes it a useful, valid,
construct. The last example now means to include sections '.text' and
'.rodata' from all files matching '*.o' except for the file 'a.o'.
If the list of input sections is long, and the user knows that the file
exclusion applies across the list then the second form might be a
clearer alternative to replicating the EXCLUDE_FILE construct.
I've added a set of tests for EXCLUDE_FILE to the linker, including
tests for the new functionality.
ld/ChangeLog:
* ldlang.h (struct lang_wild_statement_struct): Add
exclude_name_list field.
* ldlang.c (walk_wild_file_in_exclude_list): New function.
(walk_wild_consider_section): Use new
walk_wild_file_in_exclude_list function.
(walk_wild_file): Add call to walk_wild_file_in_exclude_list.
(print_wild_statement): Print new exclude_name_list field.
(lang_add_wild): Initialise new exclude_name_list field.
* testsuite/ld-scripts/exclude-file-1.d: New file.
* testsuite/ld-scripts/exclude-file-1.map: New file.
* testsuite/ld-scripts/exclude-file-1.t: New file.
* testsuite/ld-scripts/exclude-file-2.d: New file.
* testsuite/ld-scripts/exclude-file-2.map: New file.
* testsuite/ld-scripts/exclude-file-2.t: New file.
* testsuite/ld-scripts/exclude-file-3.d: New file.
* testsuite/ld-scripts/exclude-file-3.map: New file.
* testsuite/ld-scripts/exclude-file-3.t: New file.
* testsuite/ld-scripts/exclude-file-4.d: New file.
* testsuite/ld-scripts/exclude-file-4.map: New file.
* testsuite/ld-scripts/exclude-file-4.t: New file.
* testsuite/ld-scripts/exclude-file-a.s: New file.
* testsuite/ld-scripts/exclude-file-b.s: New file.
* testsuite/ld-scripts/exclude-file.exp: New file.
* ld.texinfo (Input Section Basics): Update description of
EXCLUDE_FILE to cover the new features.
* NEWS: Mention new EXCLUDE_FILE usage.
ld * testsuite/ld-elf/merge.d: Add m68hc11 to list of targets that
expect to fail this test.
* testsuite/ld-scripts/overlay-size.d: Skip the entire test for
RX.
* testsuite/ld-scripts/rgn-at10.d: No longer expect this test to
fail for the RX.
* testsuite/ld-scripts/rgn-at11.d: Likewise.
* testsuite/ld-scripts/rgn-at2.d: Likewise.
* testsuite/ld-scripts/rgn-at6.d: Likewise.
* testsuite/ld-scripts/rgn-at7.d: Likewise.
* testsuite/ld-scripts/rgn-at8.d: Likewise.
PR ld/20302
* lexsup.c (set_segment_start): If resetting the start address of
a section, remember to generate a new script element as well.
* testsuite/ld-scripts/pr20302.d: New test.
* testsuite/ld-scripts/scripts.exp: Run the new test.
A different set of hacks to make the crossref tests pass on powerpc64
and powerpc64le.
* testsuite/ld-scripts/crossref.exp: Remove -mcall-aixdesc hack.
* testsuite/ld-scripts/cross2.t: Tweak .opd and .toc placement.
* testsuite/ld-scripts/cross3.t: Likewise.
* testsuite/ld-scripts/cross4.t: Likewise.
* testsuite/ld-scripts/cross5.t: Likewise.
* testsuite/ld-scripts/cross6.t: Likewise.
* testsuite/ld-scripts/cross7.t: Likewise.
We don't want this to match .rela.text or similar.
* testsuite/ld-scripts/pr14962-2.t: Match .text, not *.text.
* testsuite/ld-scripts/rgn-at5.t: Similarly, .sec not *.sec.
* testsuite/ld-scripts/section-match-1.t: Likewise.
Fixes failures on hppa-linux and alpha-linux due to not merging
.data.* and .sdata into .data. cross3.t modified too since it is the
template for the NOCROSSREFS_TO scripts.
* testsuite/ld-scripts/cross3.t: Add commonly used data
and text section names to output section statements.
* testsuite/ld-scripts/cross4.t: Likewise.
* testsuite/ld-scripts/cross5.t: Likewise.
* testsuite/ld-scripts/cross6.t: Likewise.
* testsuite/ld-scripts/cross7.t: Likewise.
NOCROSSREFS_TO is similar to the existing NOCROSSREFS command but only
checks one direction of cross referencing.
ld/ChangeLog
* ld.texinfo: Document NOCROSSREFS_TO script command.
* ldlang.h (struct lang_nocrossrefs): Add onlyfirst field.
(lang_add_nocrossref_to): New prototype.
* ldcref.c (check_local_sym_xref): Use onlyfirst to only look for
symbols defined in the first section.
(check_nocrossref): Likewise.
* ldgram.y (NOCROSSREFS_TO): New script command.
* ldlang.c (lang_add_nocrossref): Set onlyfirst to FALSE.
(lang_add_nocrossref_to): New function.
* ldlex.l (NOCROSSREFS_TO): New token.
* NEWS: Mention NOCROSSREFS_TO.
* testsuite/ld-scripts/cross4.t: New file.
* testsuite/ld-scripts/cross5.t: Likewise.
* testsuite/ld-scripts/cross6.t: Likewise.
* testsuite/ld-scripts/cross7.t: Likewise.
* testsuite/ld-scripts/crossref.exp: Run 4 new NOCROSSREFS_TO
tests.
PR 18452
* ldlang.c (maybe_overlays): New static var.
(lang_size_sections_1): Set it here.
(struct check_sec): New.
(sort_sections_by_lma): Adjust for array of structs.
(sort_sections_by_vma): New function.
(lang_check_section_addresses): Check both LMA and VMA for overlap.
* testsuite/ld-scripts/rgn-over7.d: Adjust.
PR 19457
* testsuite/ld-scripts/script.exp (extract_symbol_test): Stop test
early for PE based targets.
* testsuite/ld-scripts/align.t: Use 0x1000 as VMA alignment.
* testsuite/ld-pe/tlssec32.d: Allow for relocatable output.
* testsuite/ld-scripts/rgn-at11.s: New file - based on rgn-at10.s
but with 16 byte section alignment.
* testsuite/ld-scripts/rgn-at11.d: Use new source file. Reenable
test for MIPS targets.