gcc/libiberty
Marek Polacek 191816a36b re PR c/7652 (-Wswitch-break : Warn if a switch case falls through)
PR c/7652
gcc/
	* alias.c (find_base_value): Adjust fall through comment.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* combine.c (find_split_point): Likewise.
	(expand_compound_operation): Likewise.  Add FALLTHRU.
	(make_compound_operation): Adjust fall through comment.
	(canon_reg_for_combine): Add FALLTHRU.
	(force_to_mode): Adjust fall through comment.
	(simplify_shift_const_1): Likewise.
	(simplify_comparison): Likewise.
	* config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Add
	FALLTHRU.
	* config/aarch64/predicates.md: Likewise.
	* config/i386/i386.c (function_arg_advance_32): Likewise.
	(ix86_gimplify_va_arg): Likewise.
	(print_reg): Likewise.
	(ix86_print_operand): Likewise.
	(ix86_build_const_vector): Likewise.
	(ix86_expand_branch): Likewise.
	(ix86_sched_init_global): Adjust fall through comment.
	(ix86_expand_args_builtin): Add FALLTHRU.
	(ix86_expand_builtin): Likewise.
	(ix86_expand_vector_init_one_var): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.
	(rs6000_adjust_cost): Likewise.
	(insn_must_be_first_in_group): Likewise.
	* config/rs6000/rs6000.md: Likewise.  Adjust fall through comment.
	* dbxout.c (dbxout_symbol): Adjust fall through comment.
	* df-scan.c (df_uses_record): Likewise.
	* dojump.c (do_jump): Add FALLTHRU.
	* dwarf2out.c (mem_loc_descriptor): Likewise.  Adjust fall through
	comment.
	(resolve_args_picking_1): Adjust fall through comment.
	(loc_list_from_tree_1): Likewise.
	* expmed.c (make_tree): Likewise.
	* expr.c (expand_expr_real_2): Add FALLTHRU.
	(expand_expr_real_1): Likewise.  Adjust fall through comment.
	* fold-const.c (const_binop): Adjust fall through comment.
	(fold_truth_not_expr): Likewise.
	(fold_cond_expr_with_comparison): Add FALLTHRU.
	(fold_binary_loc): Likewise.
	(contains_label_1): Adjust fall through comment.
	(multiple_of_p): Likewise.
	* gcov-tool.c (process_args): Add FALLTHRU.
	* genattrtab.c (check_attr_test): Likewise.
	(write_test_expr): Likewise.
	* genconfig.c (walk_insn_part): Likewise.
	* genpreds.c (validate_exp): Adjust fall through comment.
	(needs_variable): Likewise.
	* gensupport.c (get_alternatives_number): Add FALLTHRU.
	(subst_dup): Likewise.
	* gimple-pretty-print.c (dump_gimple_assign): Likewise.
	* gimplify.c (gimplify_addr_expr): Adjust fall through comment.
	(gimplify_scan_omp_clauses): Add FALLTHRU.
	(goa_stabilize_expr): Likewise.
	* graphite-isl-ast-to-gimple.c (substitute_ssa_name): Adjust fall
	through comment.
	* hsa-gen.c (get_address_from_value): Likewise.
	* ipa-icf.c (sem_function::hash_stmt): Likewise.
	* ira.c (ira_setup_alts): Add FALLTHRU.
	* lra-eliminations.c (lra_eliminate_regs_1): Adjust fall through
	comment.
	* lto-streamer-out.c (lto_output_tree_ref): Add FALLTHRU.
	* opts.c (common_handle_option): Likewise.
	* read-rtl.c (read_rtx_code): Likewise.
	* real.c (round_for_format): Likewise.
	* recog.c (asm_operand_ok): Likewise.
	* reginfo.c (reg_scan_mark_refs): Adjust fall through comment.
	* reload1.c (set_label_offsets): Likewise.
	(eliminate_regs_1): Likewise.
	(reload_reg_reaches_end_p): Likewise.
	* rtlanal.c (commutative_operand_precedence): Add FALLTHRU.
	(rtx_cost): Likewise.
	* sched-rgn.c (is_exception_free): Likewise.
	* simplify-rtx.c (simplify_rtx): Adjust fall through comment.
	* stor-layout.c (int_mode_for_mode): Likewise.
	* toplev.c (print_to_asm_out_file): Likewise.
	(print_to_stderr): Likewise.
	* tree-cfg.c (gimple_verify_flow_info): Likewise.
	* tree-chrec.c (chrec_fold_plus_1): Add FALLTHRU.
	(chrec_fold_multiply): Likewise.
	(evolution_function_is_invariant_rec_p): Likewise.
	(for_each_scev_op): Likewise.
	* tree-data-ref.c (siv_subscript_p): Likewise.
	(get_references_in_stmt): Likewise.
	* tree.c (find_placeholder_in_expr): Adjust fall through comment.
	(substitute_in_expr): Likewise.
	(type_cache_hasher::equal): Likewise.
	(walk_type_fields): Likewise.
	* var-tracking.c (adjust_mems): Add FALLTHRU.
	(set_dv_changed): Adjust fall through comment.
	* varasm.c (default_function_section): Add FALLTHRU.
gcc/c-family/
	* c-common.c (scalar_to_vector): Adjust fall through comment.
	* c-opts.c (c_common_handle_option): Likewise.
	* c-pragma.c (handle_pragma_pack): Add FALLTHRU.
	* c-pretty-print.c (c_pretty_printer::postfix_expression): Adjust
	fall through comment.
	* cilk.c (extract_free_variables): Add FALLTHRU.
gcc/c/
	* c-parser.c (c_parser_external_declaration): Add FALLTHRU.
	(c_parser_postfix_expression): Likewise.
	* c-typeck.c (build_unary_op): Adjust fall through comment.
	(c_mark_addressable): Likewise.
gcc/cp/
	* call.c (add_builtin_candidate): Add FALLTHRU.
	(build_integral_nontype_arg_conv): Adjust fall through comment.
	(build_new_op_1): Add FALLTHRU.
	(convert_like_real): Adjust fall through comment.
	* class.c (fixed_type_or_null): Likewise.
	* constexpr.c (cxx_eval_constant_expression): Likewise.
	(potential_constant_expression_1): Likewise.  Add FALLTHRU.
	* cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment.
	(cp_fold): Add FALLTHRU.
	* cvt.c (build_expr_type_conversion): Adjust fall through comment.
	* cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU.
	(pp_cxx_qualified_id): Likewise.
	(cxx_pretty_printer::constant): Adjust fall through comment.
	(cxx_pretty_printer::primary_expression): Add FALLTHRU.
	(pp_cxx_pm_expression): Adjust fall through comment.
	(cxx_pretty_printer::expression): Add FALLTHRU.
	(cxx_pretty_printer::declaration_specifiers): Reformat code.
	(pp_cxx_type_specifier_seq): Adjust fall through comment.
	(pp_cxx_ptr_operator): Likewise.  Add FALLTHRU.
	* error.c (dump_type): Adjust fall through comment.
	(dump_decl): Likewise.
	* mangle.c (write_type): Likewise.
	* method.c (synthesized_method_walk): Add FALLTHRU.
	* name-lookup.c (arg_assoc_type): Likewise.
	* parser.c (cp_lexer_print_token): Adjust fall through comment.
	(cp_parser_primary_expression): Add FALLTHRU.
	(cp_parser_operator): Likewise.
	* pt.c (find_parameter_packs_r): Likewise.
	(tsubst_aggr_type): Adjust fall through comment.
	* semantics.c (finish_omp_clauses): Add FALLTHRU.
	* tree.c (lvalue_kind): Likewise.
gcc/fortran/
	* decl.c (match_attr_spec): Add FALLTHRU.
	* primary.c (match_arg_list_function): Likewise.
	* resolve.c (resolve_operator): Adjust fall through comment.
	(fixup_charlen): Add FALLTHRU.
	(resolve_allocate_expr): Adjust fall through comment.
	* trans-array.c (gfc_conv_ss_startstride): Add FALLTHRU.
	* trans-intrinsic.c (gfc_conv_intrinsic_len): Adjust fall through
	comment.
gcc/java/
	* expr.c (java_truthvalue_conversion): Adjust fall through comment.
	* jcf-io.c (verify_constant_pool): Likewise.
	* typeck.c (promote_type): Likewise.
gcc/objc/
	* objc-encoding.c (encode_type): Add FALLTHRU.
libcpp/
	* lex.c (search_line_fast): Add FALLTHRU.
	(_cpp_lex_direct): Likewise.
	(cpp_token_val_index): Adjust fall through comment.
	* macro.c (parse_params): Add FALLTHRU.
	* pch.c (count_defs): Adjust fall through comment.
	(write_defs): Likewise.
libiberty/
	* cp-demangle.c (d_print_mod): Add FALLTHRU.

From-SVN: r239410
2016-08-12 10:30:47 +00:00
..
config
testsuite re PR c++/71696 (Libiberty Demangler segfaults (6)) 2016-08-04 10:53:18 -06:00
_doprnt.c
.gitignore
aclocal.m4
alloca.c
argv.c libiberty: {count,dup,write}argv: constify argv input slightly 2016-01-05 20:23:30 +00:00
asprintf.c
at-file.texi
atexit.c
basename.c
bcmp.c
bcopy.c
bsearch.c
bzero.c
calloc.c
ChangeLog re PR c/7652 (-Wswitch-break : Warn if a switch case falls through) 2016-08-12 10:30:47 +00:00
ChangeLog.jit
choose-temp.c
clock.c
concat.c
config.h-vms
config.in Configury changes for obstack optimization 2015-11-09 15:24:15 +10:30
configure config.guess: Remove SH5 support. 2016-04-30 09:11:03 +00:00
configure.ac Configury changes for obstack optimization 2015-11-09 15:02:08 +10:30
configure.com
copying-lib.texi
COPYING.LIB
copysign.c
cp-demangle.c re PR c/7652 (-Wswitch-break : Warn if a switch case falls through) 2016-08-12 10:30:47 +00:00
cp-demangle.h Fix several crashes of C++ demangler on fuzzed input. 2015-07-13 05:49:54 +00:00
cp-demint.c PR other/61321 - demangler crash on casts in template parameters 2015-11-27 14:48:21 +00:00
cplus-dem.c re PR c++/71696 (Libiberty Demangler segfaults (6)) 2016-08-04 10:53:18 -06:00
crc32.c Tweak the documentation of libiberty's xcrc32 function 2015-12-28 22:00:14 +00:00
d-demangle.c d-demangle.c (dlang_call_convention): Handle extern Objective-C function calling convention. 2016-01-27 01:07:26 +00:00
dwarfnames.c
dyn-string.c
fdmatch.c
ffs.c
fibheap.c
filename_cmp.c
floatformat.c
fnmatch.c
fnmatch.txh
fopen_unlocked.c
functions.texi libiberty: {count,dup,write}argv: constify argv input slightly 2016-01-05 20:23:30 +00:00
gather-docs
getcwd.c
getopt1.c
getopt.c
getpagesize.c
getpwd.c
getruntime.c getruntime.c (RUSAGE_SELF): Define if not already defined. 2015-07-09 17:06:00 +02:00
gettimeofday.c
hashtab.c
hex.c
index.c
insque.c
lbasename.c
libiberty.texi
lrealpath.c
maint-tool
make-relative-prefix.c libiberty.h (MAX_ALLOCA_SIZE): New macro. 2016-07-29 16:40:55 +00:00
make-temp-file.c
Makefile.in * Makefile.in (etags tags TAGS): Use && instead of ;. 2015-11-12 19:18:54 +00:00
makefile.vms
md5.c
memchr.c
memcmp.c
memcpy.c
memmem.c
memmove.c
mempcpy.c
memset.c
mkstemps.c
msdos.c
objalloc.c
obstack.c Silence obstack.c -Wc++compat warning 2015-11-09 15:00:26 +10:30
obstacks.texi Modify obstack.[hc] to avoid having to include other gnulib files 2015-11-09 14:58:21 +10:30
partition.c
pex-common.c
pex-common.h
pex-djgpp.c
pex-msdos.c
pex-one.c
pex-unix.c Fix PR63758 by using the _NSGetEnviron() API on Darwin 2015-10-18 10:33:37 +00:00
pex-win32.c
pexecute.c
pexecute.txh
physmem.c
putenv.c
random.c
README
regex.c re PR other/66827 (left shifts of negative value warnings due to C++14 switch) 2015-12-21 08:23:35 +00:00
rename.c
rindex.c
safe-ctype.c
setenv.c Fix PR63758 by using the _NSGetEnviron() API on Darwin 2015-10-18 10:33:37 +00:00
setproctitle.c
sha1.c
sigsetmask.c
simple-object-coff.c
simple-object-common.h
simple-object-elf.c
simple-object-mach-o.c
simple-object-xcoff.c
simple-object.c
simple-object.txh
snprintf.c
sort.c
spaces.c
splay-tree.c
stack-limit.c
stpcpy.c
stpncpy.c
strcasecmp.c
strchr.c
strdup.c
strerror.c
strncasecmp.c
strncmp.c
strndup.c
strnlen.c
strrchr.c
strsignal.c
strstr.c
strtod.c
strtol.c
strtoll.c
strtoul.c
strtoull.c
strverscmp.c
timeval-utils.c
tmpnam.c
unlink-if-ordinary.c
vasprintf.c
vfork.c
vfprintf.c
vprintf-support.c
vprintf-support.h
vprintf.c
vsnprintf.c
vsprintf.c
waitpid.c
xasprintf.c
xatexit.c
xexit.c
xmalloc.c Fix PR63758 by using the _NSGetEnviron() API on Darwin 2015-10-18 10:33:37 +00:00
xmemdup.c Don't needlessly clear xmemdup allocated memory. 2016-05-31 20:38:54 +09:30
xstrdup.c
xstrerror.c
xstrndup.c
xvasprintf.c

This directory contains the -liberty library of free software.
It is a collection of subroutines used by various GNU programs.
Current members include:

	getopt -- get options from command line
	obstack -- stacks of arbitrarily-sized objects
	strerror -- error message strings corresponding to errno
	strtol -- string-to-long conversion
	strtoul -- string-to-unsigned-long conversion

We expect many of the GNU subroutines that are floating around to
eventually arrive here.

The library must be configured from the top source directory.  Don't
try to run configure in this directory.  Follow the configuration
instructions in ../README.

Please report bugs to "gcc-bugs@gcc.gnu.org" and send fixes to
"gcc-patches@gcc.gnu.org".  Thank you.

ADDING A NEW FILE
=================

There are two sets of files:  Those that are "required" will be
included in the library for all configurations, while those
that are "optional" will be included in the library only if "needed."

To add a new required file, edit Makefile.in to add the source file
name to CFILES and the object file to REQUIRED_OFILES.

To add a new optional file, it must provide a single function, and the
name of the function must be the same as the name of the file.

    * Add the source file name to CFILES in Makefile.in and the object
      file to CONFIGURED_OFILES.

    * Add the function to name to the funcs shell variable in
      configure.ac.

    * Add the function to the AC_CHECK_FUNCS lists just after the
      setting of the funcs shell variable.  These AC_CHECK_FUNCS calls
      are never executed; they are there to make autoheader work
      better.

    * Consider the special cases of building libiberty; as of this
      writing, the special cases are newlib and VxWorks.  If a
      particular special case provides the function, you do not need
      to do anything.  If it does not provide the function, add the
      object file to LIBOBJS, and add the function name to the case
      controlling whether to define HAVE_func.

Finally, in the build directory of libiberty, configure with
"--enable-maintainer-mode", run "make maint-deps" to update
Makefile.in, and run 'make stamp-functions' to regenerate
functions.texi.

The optional file you've added (e.g. getcwd.c) should compile and work
on all hosts where it is needed.  It does not have to work or even
compile on hosts where it is not needed.

ADDING A NEW CONFIGURATION
==========================

On most hosts you should be able to use the scheme for automatically
figuring out which files are needed.  In that case, you probably
don't need a special Makefile stub for that configuration.

If the fully automatic scheme doesn't work, you may be able to get
by with defining EXTRA_OFILES in your Makefile stub.  This is
a list of object file names that should be treated as required
for this configuration - they will be included in libiberty.a,
regardless of whatever might be in the C library.