diff options
| -rw-r--r-- | lib/compiler/doc/src/compile.xml | 5 | ||||
| -rw-r--r-- | lib/compiler/src/compile.erl | 25 | ||||
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 7 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 7 | ||||
| -rw-r--r-- | lib/compiler/test/bs_construct_SUITE.erl | 4 | ||||
| -rw-r--r-- | lib/compiler/test/error_SUITE.erl | 15 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/epp.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/src/epp.erl | 44 | ||||
| -rw-r--r-- | lib/stdlib/src/erl_scan.erl | 2 | ||||
| -rw-r--r-- | lib/tools/src/xref_utils.erl | 4 | ||||
| -rw-r--r-- | lib/tools/test/xref_SUITE.erl | 16 | ||||
| -rw-r--r-- | xcomp/erl-xcomp-powerpc-dso-linux-gnu.conf | 258 |
12 files changed, 306 insertions, 83 deletions
diff --git a/lib/compiler/doc/src/compile.xml b/lib/compiler/doc/src/compile.xml index b87e32a3d9..be9eb1cd75 100644 --- a/lib/compiler/doc/src/compile.xml +++ b/lib/compiler/doc/src/compile.xml @@ -108,11 +108,6 @@ See the <em>Efficiency Guide</em> for further information.</p> </item> - <tag><c>column</c></tag> - <item> - <p>The compiler will keep the column numbers while parsing.</p> - </item> - <tag><c>compressed</c></tag> <item> <p>The compiler will compress the generated object code, diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index fbaacc08da..7365706b94 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -41,7 +41,7 @@ -type option() :: atom() | {atom(), term()} | {'d', atom(), term()}. --type err_info() :: erl_scan:error_info(). %% ErrorDescriptor +-type err_info() :: {erl_scan:line(), module(), term()}. %% ErrorDescriptor -type errors() :: [{file:filename(), [err_info()]}]. -type warnings() :: [{file:filename(), [err_info()]}]. -type mod_ret() :: {'ok', module()} @@ -363,17 +363,7 @@ messages_per_file(Ms) -> (_) -> false end, A) end, T, PrioMs), - Prio = lists:sort(fun({_,{As1,_,_}}, {_,{As2,_,_}}) -> - {location, Loc1} = - erl_scan:attributes_info(As1, location), - {location, Loc2} = - erl_scan:attributes_info(As2, location), - case {Loc1, Loc2} of - {{L1, _}, L2} when is_integer(L2) -> L1 < L2; - {L1, {L2, _}} when is_integer(L1) -> L1 =< L2; - {_, _} -> Loc1 =< Loc2 - end - end, + Prio = lists:sort(fun({_,{L1,_,_}}, {_,{L2,_,_}}) -> L1 =< L2 end, lists:append(Prio0)), flatmap(fun mpf/1, [Prio, Rest]). @@ -783,8 +773,7 @@ parse_module(St) -> Opts = St#compile.options, Cwd = ".", IncludePath = [Cwd, St#compile.dir|inc_paths(Opts)], - AtPos = initial_position(Opts), - R = epp:parse_file(St#compile.ifile, AtPos, IncludePath, pre_defs(Opts)), + R = epp:parse_file(St#compile.ifile, IncludePath, pre_defs(Opts)), case R of {ok,Forms} -> {ok,St#compile{code=Forms}}; @@ -1434,7 +1423,7 @@ report_warnings(#compile{options=Opts,warnings=Ws0}) -> end. format_message(F, P, [{{Line,Column}=Loc,Mod,E}|Es]) -> - M = {{F,Loc},io_lib:format("~s:~w:~w: ~s~s\n", + M = {{F,Loc},io_lib:format("~s:~w:~w ~s~s\n", [F,Line,Column,P,Mod:format_error(E)])}, [M|format_message(F, P, Es)]; format_message(F, P, [{Line,Mod,E}|Es]) -> @@ -1490,12 +1479,6 @@ objfile(Base, St) -> tmpfile(Ofile) -> reverse([$#|tl(reverse(Ofile))]). -initial_position(Opts) -> - case lists:member(column, Opts) of - true -> {1, 1}; - false -> 1 - end. - %% pre_defs(Options) %% inc_paths(Options) %% Extract the predefined macros and include paths from the option list. diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 242196c593..01042cc56f 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -823,6 +823,13 @@ bitstr({bin_element,_,E0,Size0,[Type,{unit,Unit}|Flags]}, St0) -> {_,_} -> throw(bad_binary) end, + case Size1 of + #c_var{} -> ok; + #c_literal{val=Sz} when is_integer(Sz), Sz >= 0 -> ok; + #c_literal{val=undefined} -> ok; + #c_literal{val=all} -> ok; + _ -> throw(bad_binary) + end, {#c_bitstr{val=E1,size=Size1, unit=#c_literal{val=Unit}, type=#c_literal{val=Type}, diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index c4e7b45aac..b184987625 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -278,11 +278,12 @@ expr(#c_binary{anno=A,segments=Cv}, Sub, St0) -> {#k_binary{anno=A,segs=Kv},Ep,St1} catch throw:bad_element_size -> + St1 = add_warning(get_line(A), bad_segment_size, A, St0), Erl = #c_literal{val=erlang}, Name = #c_literal{val=error}, Args = [#c_literal{val=badarg}], Error = #c_call{anno=A,module=Erl,name=Name,args=Args}, - expr(Error, Sub, St0) + expr(Error, Sub, St1) end; expr(#c_fun{anno=A,vars=Cvs,body=Cb}, Sub0, #kern{ff=OldFF,func=Func}=St0) -> FA = case OldFF of @@ -1827,7 +1828,9 @@ format_error({nomatch_shadow,Line}) -> format_error(nomatch_shadow) -> "this clause cannot match because a previous clause always matches"; format_error(bad_call) -> - "invalid module and/or function name; this call will always fail". + "invalid module and/or function name; this call will always fail"; +format_error(bad_segment_size) -> + "binary construction will fail because of a type mismatch". add_warning(none, Term, Anno, #kern{ws=Ws}=St) -> File = get_file(Anno), diff --git a/lib/compiler/test/bs_construct_SUITE.erl b/lib/compiler/test/bs_construct_SUITE.erl index 31c7890f26..e8b30f44ce 100644 --- a/lib/compiler/test/bs_construct_SUITE.erl +++ b/lib/compiler/test/bs_construct_SUITE.erl @@ -468,6 +468,10 @@ opt(Config) when is_list(Config) -> ?line {'EXIT',_} = (catch <<<<23,56,0,2>>:64/float>>), ?line {'EXIT',_} = (catch <<<<23,56,0,2:7>>/binary>>), + %% Test constant propagation - there should be a warning. + BadSz = 2.5, + {'EXIT',_} = (catch <<<<N,56,0,2>>:BadSz/binary>>), + case id(false) of true -> ?line opt_dont_call_me(); false -> ok diff --git a/lib/compiler/test/error_SUITE.erl b/lib/compiler/test/error_SUITE.erl index 47698ecdb7..eb5e50818e 100644 --- a/lib/compiler/test/error_SUITE.erl +++ b/lib/compiler/test/error_SUITE.erl @@ -22,15 +22,13 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, - head_mismatch_line/1,warnings_as_errors/1, bif_clashes/1, - column_number/1 - ]). + head_mismatch_line/1,warnings_as_errors/1, bif_clashes/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> test_lib:recompile(?MODULE), - [head_mismatch_line, warnings_as_errors, bif_clashes, column_number]. + [head_mismatch_line, warnings_as_errors, bif_clashes]. groups() -> []. @@ -168,15 +166,6 @@ bif_clashes(Config) when is_list(Config) -> -%% Tests that messages are correctly reported with column numbers -%% if the column option is set. -column_number(Config) when is_list(Config) -> - Ts1 = [{column_number_warning, - <<"\nt(X) -> ok.">>, - [return_warnings, export_all, column], - {warning, [{{2, 3}, erl_lint, {unused_var, 'X'}}]}}], - ?line [] = run(Config, Ts1), - ok. %% Tests that a head mismatch is reported on the correct line (OTP-2125). head_mismatch_line(Config) when is_list(Config) -> diff --git a/lib/stdlib/doc/src/epp.xml b/lib/stdlib/doc/src/epp.xml index a57c7084fa..488499581f 100644 --- a/lib/stdlib/doc/src/epp.xml +++ b/lib/stdlib/doc/src/epp.xml @@ -51,7 +51,6 @@ <func> <name name="open" arity="2"/> <name name="open" arity="3"/> - <name name="open" arity="4"/> <fsummary>Open a file for preprocessing</fsummary> <desc> <p>Opens a file for preprocessing.</p> @@ -76,7 +75,6 @@ </func> <func> <name name="parse_file" arity="3"/> - <name name="parse_file" arity="4"/> <fsummary>Preprocess and parse an Erlang source file</fsummary> <desc> <p>Preprocesses and parses an Erlang source file. diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index d958b0af2a..ccc14610d7 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -20,9 +20,9 @@ %% An Erlang code preprocessor. --export([open/2,open/3,open/4, open/5,close/1,format_error/1]). +-export([open/2,open/3,open/5,close/1,format_error/1]). -export([scan_erl_form/1,parse_erl_form/1,macro_defs/1]). --export([parse_file/1, parse_file/3, parse_file/4]). +-export([parse_file/1, parse_file/3]). -export([interpret_file_attribute/1]). -export([normalize_typed_record_fields/1,restore_typed_record_fields/1]). @@ -54,14 +54,12 @@ %% open(FileName, IncludePath) %% open(FileName, IncludePath, PreDefMacros) -%% open(FileName, StartLocation, IncludePath, PredefMacros) %% open(FileName, IoDevice, StartLocation, IncludePath, PreDefMacros) %% close(Epp) %% scan_erl_form(Epp) %% parse_erl_form(Epp) %% parse_file(Epp) %% parse_file(FileName, IncludePath, PreDefMacros) -%% parse_file(FileName, StartLocation, IncludePath, PreDefMacros) %% macro_defs(Epp) -spec open(FileName, IncludePath) -> @@ -83,20 +81,8 @@ open(Name, Path) -> ErrorDescriptor :: term(). open(Name, Path, Pdm) -> - open(Name, 1, Path, Pdm). - --spec open(FileName, StartLocation, IncludePath, PredefMacros) -> - {'ok', Epp} | {'error', ErrorDescriptor} when - FileName :: file:name(), - StartLocation :: erl_scan:location(), - IncludePath :: [DirectoryName :: file:name()], - PredefMacros :: macros(), - Epp :: epp_handle(), - ErrorDescriptor :: term(). - -open(Name, StartLocation, Path, Pdm) -> Self = self(), - Epp = spawn(fun() -> server(Self, Name, StartLocation, Path, Pdm) end), + Epp = spawn(fun() -> server(Self, Name, Path, Pdm) end), epp_request(Epp). open(Name, File, StartLocation, Path, Pdm) -> @@ -192,21 +178,7 @@ format_error(E) -> file:format_error(E). OpenError :: file:posix() | badarg | system_limit. parse_file(Ifile, Path, Predefs) -> - parse_file(Ifile, 1, Path, Predefs). - --spec parse_file(FileName, StartLocation, IncludePath, PredefMacros) -> - {'ok', [Form]} | {error, OpenError} when - FileName :: file:name(), - StartLocation :: erl_scan:location(), - IncludePath :: [DirectoryName :: file:name()], - Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line}, - PredefMacros :: macros(), - Line :: erl_scan:line(), - ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(), - OpenError :: file:posix() | badarg | system_limit. - -parse_file(Ifile, StartLocation, Path, Predefs) -> - case open(Ifile, StartLocation, Path, Predefs) of + case open(Ifile, Path, Predefs) of {ok,Epp} -> Forms = parse_file(Epp), close(Epp), @@ -273,12 +245,14 @@ restore_typed_record_fields([{attribute,La,type,{{record,Record},Fields,[]}}| restore_typed_record_fields([Form|Forms]) -> [Form|restore_typed_record_fields(Forms)]. -%% server(StarterPid, FileName, Location, Path, PreDefMacros) -server(Pid, Name, AtLocation, Path, Pdm) -> +%% server(StarterPid, FileName, Path, PreDefMacros) + +server(Pid, Name, Path, Pdm) -> process_flag(trap_exit, true), case file:open(Name, [read]) of {ok,File} -> - init_server(Pid, Name, File, AtLocation, Path, Pdm, false); + Location = 1, + init_server(Pid, Name, File, Location, Path, Pdm, false); {error,E} -> epp_reply(Pid, {error,E}) end. diff --git a/lib/stdlib/src/erl_scan.erl b/lib/stdlib/src/erl_scan.erl index be64b428b1..10b2ed2e49 100644 --- a/lib/stdlib/src/erl_scan.erl +++ b/lib/stdlib/src/erl_scan.erl @@ -55,7 +55,7 @@ token_info/1,token_info/2, attributes_info/1,attributes_info/2,set_attribute/3]). --export_type([error_info/0, line/0, location/0, tokens_result/0]). +-export_type([error_info/0, line/0, tokens_result/0]). %%% %%% Defines and type definitions diff --git a/lib/tools/src/xref_utils.erl b/lib/tools/src/xref_utils.erl index 9d4a175d88..680563e9df 100644 --- a/lib/tools/src/xref_utils.erl +++ b/lib/tools/src/xref_utils.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2010. All Rights Reserved. +%% Copyright Ericsson AB 2000-2012. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -141,7 +141,7 @@ is_string([], _) -> is_string(Term, C) -> is_string1(Term, C). -is_string1([H | T], C) when H > C, H < 127 -> +is_string1([H | T], C) when H > C -> is_string1(T, C); is_string1([], _) -> true; diff --git a/lib/tools/test/xref_SUITE.erl b/lib/tools/test/xref_SUITE.erl index 78e49044a5..fd3e111d8d 100644 --- a/lib/tools/test/xref_SUITE.erl +++ b/lib/tools/test/xref_SUITE.erl @@ -53,7 +53,7 @@ analyze/1, basic/1, md/1, q/1, variables/1, unused_locals/1]). -export([ - format_error/1, otp_7423/1, otp_7831/1]). + format_error/1, otp_7423/1, otp_7831/1, otp_10192/1]). -import(lists, [append/2, flatten/1, keysearch/3, member/2, sort/1, usort/1]). @@ -86,7 +86,7 @@ groups() -> fun_mfa_r14, fun_mfa_vars, qlc]}, {analyses, [], [analyze, basic, md, q, variables, unused_locals]}, - {misc, [], [format_error, otp_7423, otp_7831]}]. + {misc, [], [format_error, otp_7423, otp_7831, otp_10192]}]. init_per_suite(Config) -> init(Config). @@ -2515,6 +2515,18 @@ otp_7831(Conf) when is_list(Conf) -> ?line xref:stop(Pid2), ok. +otp_10192(suite) -> []; +otp_10192(doc) -> + ["OTP-10192. Allow filenames with character codes greater than 126."]; +otp_10192(Conf) when is_list(Conf) -> + PrivDir = ?privdir, + {ok, _Pid} = xref:start(s), + Dir = filename:join(PrivDir, "�"), + ok = file:make_dir(Dir), + {ok, []} = xref:add_directory(s, Dir), + xref:stop(s), + ok. + %%% %%% Utilities %%% diff --git a/xcomp/erl-xcomp-powerpc-dso-linux-gnu.conf b/xcomp/erl-xcomp-powerpc-dso-linux-gnu.conf new file mode 100644 index 0000000000..735c986486 --- /dev/null +++ b/xcomp/erl-xcomp-powerpc-dso-linux-gnu.conf @@ -0,0 +1,258 @@ +## -*-shell-script-*- +## +## %CopyrightBegin% +## +## Copyright Ericsson AB 2009-2010. All Rights Reserved. +## +## The contents of this file are subject to the Erlang Public License, +## Version 1.1, (the "License"); you may not use this file except in +## compliance with the License. You should have received a copy of the +## Erlang Public License along with this software. If not, it can be +## retrieved online at http://www.erlang.org/. +## +## Software distributed under the License is distributed on an "AS IS" +## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +## the License for the specific language governing rights and limitations +## under the License. +## +## %CopyrightEnd% +## +## File: erl-xcomp.conf.template +## Author: Rickard Green +## +## ----------------------------------------------------------------------------- +## When cross compiling Erlang/OTP using `otp_build', copy this file and set +## the variables needed below. Then pass the path to the copy of this file as +## an argument to `otp_build' in the configure stage: +## `otp_build configure --xcomp-conf=<FILE>' +## ----------------------------------------------------------------------------- + +## Note that you cannot define arbitrary variables in a cross compilation +## configuration file. Only the ones listed below will be guaranteed to be +## visible throughout the whole execution of all `configure' scripts. Other +## variables needs to be defined as arguments to `configure' or exported in +## the environment. + +## -- Variables for `otp_build' Only ------------------------------------------- + +## Variables in this section are only used, when configuring Erlang/OTP for +## cross compilation using `$ERL_TOP/otp_build configure'. + +## *NOTE*! These variables currently have *no* effect if you configure using +## the `configure' script directly. + +# * `erl_xcomp_build' - The build system used. This value will be passed as +# `--build=$erl_xcomp_build' argument to the `configure' script. It does +# not have to be a full `CPU-VENDOR-OS' triplet, but can be. The full +# `CPU-VENDOR-OS' triplet will be created by +# `$ERL_TOP/erts/autoconf/config.sub $erl_xcomp_build'. If set to `guess', +# the build system will be guessed using +# `$ERL_TOP/erts/autoconf/config.guess'. +erl_xcomp_build=guess + +# * `erl_xcomp_host' - Cross host/target system to build for. This value will +# be passed as `--host=$erl_xcomp_host' argument to the `configure' script. +# It does not have to be a full `CPU-VENDOR-OS' triplet, but can be. The +# full `CPU-VENDOR-OS' triplet will be created by +# `$ERL_TOP/erts/autoconf/config.sub $erl_xcomp_host'. +erl_xcomp_host=powerpc-dso-linux-gnu + +# * `erl_xcomp_configure_flags' - Extra configure flags to pass to the +# `configure' script. +erl_xcomp_configure_flags=--without-termcap + +## -- Cross Compiler and Other Tools ------------------------------------------- + +## If the cross compilation tools are prefixed by `<HOST>-' you probably do +## not need to set these variables (where `<HOST>' is what has been passed as +## `--host=<HOST>' argument to `configure'). + +## All variables in this section can also be used when native compiling. + +# * `CC' - C compiler. +CC=powerpc-dso-linux-gnu-gcc + +# * `CFLAGS' - C compiler flags. +#CFLAGS= + +# * `STATIC_CFLAGS' - Static C compiler flags. +#STATIC_CFLAGS= + +# * `CFLAG_RUNTIME_LIBRARY_PATH' - This flag should set runtime library +# search path for the shared libraries. Note that this actually is a +# linker flag, but it needs to be passed via the compiler. +#CFLAG_RUNTIME_LIBRARY_PATH= + +# * `CPP' - C pre-processor. +#CPP= + +# * `CPPFLAGS' - C pre-processor flags. +#CPPFLAGS= + +# * `CXX' - C++ compiler. +CXX=powerpc-dso-linux-gnu-g++ + +# * `CXXFLAGS' - C++ compiler flags. +#CXXFLAGS= + +# * `LD' - Linker. +LD=powerpc-dso-linux-gnu-ld + +# * `LDFLAGS' - Linker flags. +#LDFLAGS= + +# * `LIBS' - Libraries. +#LIBS= + +## -- *D*ynamic *E*rlang *D*river Linking -- + +## *NOTE*! Either set all or none of the `DED_LD*' variables. + +# * `DED_LD' - Linker for Dynamically loaded Erlang Drivers. +#DED_LD= + +# * `DED_LDFLAGS' - Linker flags to use with `DED_LD'. +#DED_LDFLAGS= + +# * `DED_LD_FLAG_RUNTIME_LIBRARY_PATH' - This flag should set runtime library +# search path for shared libraries when linking with `DED_LD'. +#DED_LD_FLAG_RUNTIME_LIBRARY_PATH= + +## -- Large File Support -- + +## *NOTE*! Either set all or none of the `LFS_*' variables. + +# * `LFS_CFLAGS' - Large file support C compiler flags. +#LFS_CFLAGS= + +# * `LFS_LDFLAGS' - Large file support linker flags. +#LFS_LDFLAGS= + +# * `LFS_LIBS' - Large file support libraries. +#LFS_LIBS= + +## -- Other Tools -- + +# * `RANLIB' - `ranlib' archive index tool. +RANLIB=powerpc-dso-linux-gnu-ranlib + +# * `AR' - `ar' archiving tool. +AR=powerpc-dso-linux-gnu-ar + +# * `GETCONF' - `getconf' system configuration inspection tool. `getconf' is +# currently used for finding out large file support flags to use, and +# on Linux systems for finding out if we have an NPTL thread library or +# not. +#GETCONF= + +## -- Cross System Root Locations ---------------------------------------------- + +# * `erl_xcomp_sysroot' - The absolute path to the system root of the cross +# compilation environment. Currently, the `crypto', `odbc', `ssh' and +# `ssl' applications need the system root. These applications will be +# skipped if the system root has not been set. The system root might be +# needed for other things too. If this is the case and the system root +# has not been set, `configure' will fail and request you to set it. +erl_xcomp_sysroot="$DSO_SYSROOT_POWERPC" + +# * `erl_xcomp_isysroot' - The absolute path to the system root for includes +# of the cross compilation environment. If not set, this value defaults +# to `$erl_xcomp_sysroot', i.e., only set this value if the include system +# root path is not the same as the system root path. +#erl_xcomp_isysroot= + +## -- Optional Feature, and Bug Tests ------------------------------------------ + +## These tests cannot (always) be done automatically when cross compiling. You +## usually do not need to set these variables. Only set these if you really +## know what you are doing. + +## Note that some of these values will override results of tests performed +## by `configure', and some will not be used until `configure' is sure that +## it cannot figure the result out. + +## The `configure' script will issue a warning when a default value is used. +## When a variable has been set, no warning will be issued. + +# * `erl_xcomp_after_morecore_hook' - `yes|no'. Defaults to `no'. If `yes', +# the target system must have a working `__after_morecore_hook' that can be +# used for tracking used `malloc()' implementations core memory usage. +# This is currently only used by unsupported features. +erl_xcomp_after_morecore_hook=yes + +# * `erl_xcomp_bigendian' - `yes|no'. No default. If `yes', the target system +# must be big endian. If `no', little endian. This can often be +# automatically detected, but not always. If not automatically detected, +# `configure' will fail unless this variable is set. Since no default +# value is used, `configure' will try to figure this out automatically. +#erl_xcomp_bigendian= + +# * `erl_xcomp_clock_gettime_cpu_time' - `yes|no'. Defaults to `no'. If `yes', +# the target system must have a working `clock_gettime()' implementation +# that can be used for retrieving process CPU time. +#erl_xcomp_clock_gettime_cpu_time= + +# * `erl_xcomp_getaddrinfo' - `yes|no'. Defaults to `no'. If `yes', the target +# system must have a working `getaddrinfo()' implementation that can +# handle both IPv4 and IPv6. +erl_xcomp_getaddrinfo=yes + +# * `erl_xcomp_gethrvtime_procfs_ioctl' - `yes|no'. Defaults to `no'. If `yes', +# the target system must have a working `gethrvtime()' implementation and +# is used with procfs `ioctl()'. +#erl_xcomp_gethrvtime_procfs_ioctl= + +# * `erl_xcomp_dlsym_brk_wrappers' - `yes|no'. Defaults to `no'. If `yes', the +# target system must have a working `dlsym(RTLD_NEXT, <S>)' implementation +# that can be used on `brk' and `sbrk' symbols used by the `malloc()' +# implementation in use, and by this track the `malloc()' implementations +# core memory usage. This is currently only used by unsupported features. +#erl_xcomp_dlsym_brk_wrappers= + +# * `erl_xcomp_kqueue' - `yes|no'. Defaults to `no'. If `yes', the target +# system must have a working `kqueue()' implementation that returns a file +# descriptor which can be used by `poll()' and/or `select()'. If `no' and +# the target system has not got `epoll()' or `/dev/poll', the kernel-poll +# feature will be disabled. +#erl_xcomp_kqueue= + +# * `erl_xcomp_linux_clock_gettime_correction' - `yes|no'. Defaults to `yes' on +# Linux; otherwise, `no'. If `yes', `clock_gettime(CLOCK_MONOTONIC, _)' on +# the target system must work. This variable is recommended to be set to +# `no' on Linux systems with kernel versions less than 2.6. +#erl_xcomp_linux_clock_gettime_correction= + +# * `erl_xcomp_linux_nptl' - `yes|no'. Defaults to `yes' on Linux; otherwise, +# `no'. If `yes', the target system must have NPTL (Native POSIX Thread +# Library). Older Linux systems have LinuxThreads instead of NPTL (Linux +# kernel versions typically less than 2.6). +#erl_xcomp_linux_nptl= + +# * `erl_xcomp_linux_usable_sigaltstack' - `yes|no'. Defaults to `yes' on Linux; +# otherwise, `no'. If `yes', `sigaltstack()' must be usable on the target +# system. `sigaltstack()' on Linux kernel versions less than 2.4 are +# broken. +#erl_xcomp_linux_usable_sigaltstack= + +# * `erl_xcomp_linux_usable_sigusrx' - `yes|no'. Defaults to `yes'. If `yes', +# the `SIGUSR1' and `SIGUSR2' signals must be usable by the ERTS. Old +# LinuxThreads thread libraries (Linux kernel versions typically less than +# 2.2) used these signals and made them unusable by the ERTS. +#erl_xcomp_linux_usable_sigusrx= + +# * `erl_xcomp_poll' - `yes|no'. Defaults to `no' on Darwin/MacOSX; otherwise, +# `yes'. If `yes', the target system must have a working `poll()' +# implementation that also can handle devices. If `no', `select()' will be +# used instead of `poll()'. +#erl_xcomp_poll= + +# * `erl_xcomp_putenv_copy' - `yes|no'. Defaults to `no'. If `yes', the target +# system must have a `putenv()' implementation that stores a copy of the +# key/value pair. +#erl_xcomp_putenv_copy= + +# * `erl_xcomp_reliable_fpe' - `yes|no'. Defaults to `no'. If `yes', the target +# system must have reliable floating point exceptions. +#erl_xcomp_reliable_fpe= + +## ----------------------------------------------------------------------------- |