diff options
Diffstat (limited to 'toolchain/gcc/patches/cflags.patch')
| -rw-r--r-- | toolchain/gcc/patches/cflags.patch | 179 |
1 files changed, 83 insertions, 96 deletions
diff --git a/toolchain/gcc/patches/cflags.patch b/toolchain/gcc/patches/cflags.patch index 0d5815a54..af4430fdc 100644 --- a/toolchain/gcc/patches/cflags.patch +++ b/toolchain/gcc/patches/cflags.patch @@ -1,36 +1,18 @@ - - This patch brings over a few features from MirBSD: - * -fhonour-copts - If this option is not given, it's warned (depending - on environment variables). This is to catch errors - of misbuilt packages which override CFLAGS themselves. - * -Werror-maybe-reset - Has the effect of -Wno-error if GCC_NO_WERROR is - set and not '0', a no-operation otherwise. This is - to be able to use -Werror in "make" but prevent - GNU autoconf generated configure scripts from - freaking out. - * Make -fno-strict-aliasing and -fno-delete-null-pointer-checks - the default for -O2/-Os, because they trigger gcc bugs - and can delete code with security implications. - - This patch was authored by Thorsten Glaser <tg at mirbsd.de> - with copyright assignment to the FSF in effect. - ---- a/gcc/c-opts.c -+++ b/gcc/c-opts.c -@@ -105,6 +105,9 @@ +diff -Nur gcc-4.6.0.orig/gcc/c-family/c-opts.c gcc-4.6.0/gcc/c-family/c-opts.c +--- gcc-4.6.0.orig/gcc/c-family/c-opts.c 2011-01-26 07:48:04.000000000 +0100 ++++ gcc-4.6.0/gcc/c-family/c-opts.c 2011-03-31 15:46:52.000000000 +0200 +@@ -103,6 +103,9 @@ /* Number of deferred options scanned for -include. */ static size_t include_cursor; +/* Check if a port honours COPTS. */ +static int honour_copts = 0; + - static void set_Wimplicit (int); static void handle_OPT_d (const char *); static void set_std_cxx98 (int); -@@ -454,6 +457,9 @@ - enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC); + static void set_std_cxx0x (int); +@@ -441,6 +444,9 @@ + global_dc->warning_as_error_requested = value; break; + case OPT_Werror_maybe_reset: @@ -39,20 +21,19 @@ case OPT_Wformat: set_Wformat (value); break; -@@ -690,6 +701,12 @@ - flag_exceptions = value; +@@ -653,6 +659,11 @@ + visibility_options.inlines_hidden = value; break; + case OPT_fhonour_copts: -+ if (c_language == clk_c) { -+ honour_copts++; -+ } ++ if (c_language == clk_c) ++ honour_copts++; + break; + - case OPT_fimplement_inlines: - flag_implement_inlines = value; + case OPT_femit_struct_debug_baseonly: + set_struct_debug_option (&global_options, loc, "base"); break; -@@ -1209,6 +1226,47 @@ +@@ -1058,6 +1069,47 @@ return false; } @@ -100,10 +81,11 @@ return true; } ---- a/gcc/c.opt -+++ b/gcc/c.opt -@@ -215,6 +215,10 @@ - C ObjC RejectNegative Warning +diff -Nur gcc-4.6.0.orig/gcc/c-family/c.opt gcc-4.6.0/gcc/c-family/c.opt +--- gcc-4.6.0.orig/gcc/c-family/c.opt 2011-02-17 22:34:10.000000000 +0100 ++++ gcc-4.6.0/gcc/c-family/c.opt 2011-03-31 15:40:46.000000000 +0200 +@@ -363,6 +363,10 @@ + C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration) This switch is deprecated; use -Werror=implicit-function-declaration instead +Werror-maybe-reset @@ -113,9 +95,9 @@ Wfloat-equal C ObjC C++ ObjC++ Var(warn_float_equal) Warning Warn if testing floating point numbers for equality -@@ -609,6 +613,9 @@ +@@ -790,6 +794,9 @@ fhonor-std - C++ ObjC++ + C++ ObjC++ Ignore Warn(switch %qs is no longer supported) +fhonour-copts +C ObjC C++ ObjC++ RejectNegative @@ -123,9 +105,10 @@ fhosted C ObjC Assume normal C execution environment ---- a/gcc/common.opt -+++ b/gcc/common.opt -@@ -102,6 +102,10 @@ +diff -Nur gcc-4.6.0.orig/gcc/common.opt gcc-4.6.0/gcc/common.opt +--- gcc-4.6.0.orig/gcc/common.opt 2011-03-06 01:38:13.000000000 +0100 ++++ gcc-4.6.0/gcc/common.opt 2011-03-31 15:40:46.000000000 +0200 +@@ -511,6 +511,10 @@ Common Joined Treat specified warning as error @@ -134,9 +117,9 @@ +If environment variable GCC_NO_WERROR is set, act as -Wno-error + Wextra - Common Warning + Common Var(extra_warnings) Warning Print extra (possibly unwanted) warnings -@@ -573,6 +577,9 @@ +@@ -1147,6 +1151,9 @@ Common Report Var(flag_guess_branch_prob) Optimization Enable guessing of branch probabilities @@ -146,46 +129,9 @@ ; Nonzero means ignore `#ident' directives. 0 means handle them. ; Generate position-independent code for executables if possible ; On SVR4 targets, it also controls whether or not to emit a ---- a/gcc/opts.c -+++ b/gcc/opts.c -@@ -896,8 +896,6 @@ - flag_schedule_insns_after_reload = opt2; - #endif - flag_regmove = opt2; -- flag_strict_aliasing = opt2; -- flag_strict_overflow = opt2; - flag_reorder_blocks = opt2; - flag_reorder_functions = opt2; - flag_tree_vrp = opt2; -@@ -922,6 +919,8 @@ - - /* -O3 optimizations. */ - opt3 = (optimize >= 3); -+ flag_strict_aliasing = opt3; -+ flag_strict_overflow = opt3; - flag_predictive_commoning = opt3; - flag_inline_functions = opt3; - flag_unswitch_loops = opt3; -@@ -1601,6 +1601,17 @@ - enable_warning_as_error (arg, value, lang_mask); - break; - -+ case OPT_Werror_maybe_reset: -+ { -+ char *ev = getenv ("GCC_NO_WERROR"); -+ if ((ev != NULL) && (*ev != '0')) -+ warnings_are_errors = 0; -+ } -+ break; -+ -+ case OPT_fhonour_copts: -+ break; -+ - case OPT_Wlarger_than_: - /* This form corresponds to -Wlarger-than-. - Kept for backward compatibility. ---- a/gcc/doc/cppopts.texi -+++ b/gcc/doc/cppopts.texi +diff -Nur gcc-4.6.0.orig/gcc/doc/cppopts.texi gcc-4.6.0/gcc/doc/cppopts.texi +--- gcc-4.6.0.orig/gcc/doc/cppopts.texi 2010-12-20 08:26:12.000000000 +0100 ++++ gcc-4.6.0/gcc/doc/cppopts.texi 2011-03-31 15:40:46.000000000 +0200 @@ -164,6 +164,11 @@ Make all warnings into hard errors. Source code which triggers warnings will be rejected. @@ -198,18 +144,19 @@ @item -Wsystem-headers @opindex Wsystem-headers Issue warnings for code in system headers. These are normally unhelpful ---- a/gcc/doc/invoke.texi -+++ b/gcc/doc/invoke.texi -@@ -234,7 +234,7 @@ - -Wconversion -Wcoverage-mismatch -Wno-deprecated @gol +diff -Nur gcc-4.6.0.orig/gcc/doc/invoke.texi gcc-4.6.0/gcc/doc/invoke.texi +--- gcc-4.6.0.orig/gcc/doc/invoke.texi 2011-03-18 15:34:52.000000000 +0100 ++++ gcc-4.6.0/gcc/doc/invoke.texi 2011-03-31 15:41:41.000000000 +0200 +@@ -240,7 +240,7 @@ + -Wconversion -Wcoverage-mismatch -Wcpp -Wno-deprecated @gol -Wno-deprecated-declarations -Wdisabled-optimization @gol - -Wno-div-by-zero -Wempty-body -Wenum-compare -Wno-endif-labels @gol ---Werror -Werror=* @gol -+-Werror -Werror=* -Werror-maybe-reset @gol + -Wno-div-by-zero -Wdouble-promotion -Wempty-body -Wenum-compare @gol +--Wno-endif-labels -Werror -Werror=* @gol ++-Wno-endif-labels -Werror -Werror=* -Werror-maybe-reset @gol -Wfatal-errors -Wfloat-equal -Wformat -Wformat=2 @gol -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol -Wformat-security -Wformat-y2k @gol -@@ -4161,6 +4161,22 @@ +@@ -4488,6 +4488,22 @@ @option{-Wall} and by @option{-pedantic}, which can be disabled with @option{-Wno-pointer-sign}. @@ -232,7 +179,7 @@ @item -Wstack-protector @opindex Wstack-protector @opindex Wno-stack-protector -@@ -5699,7 +5715,7 @@ +@@ -6310,7 +6326,7 @@ second branch or a point immediately following it, depending on whether the condition is known to be true or false. @@ -241,9 +188,10 @@ @item -fsplit-wide-types @opindex fsplit-wide-types ---- a/gcc/java/jvspec.c -+++ b/gcc/java/jvspec.c -@@ -670,6 +670,7 @@ +diff -Nur gcc-4.6.0.orig/gcc/java/jvspec.c gcc-4.6.0/gcc/java/jvspec.c +--- gcc-4.6.0.orig/gcc/java/jvspec.c 2011-02-13 20:20:01.000000000 +0100 ++++ gcc-4.6.0/gcc/java/jvspec.c 2011-03-31 15:40:46.000000000 +0200 +@@ -627,6 +627,7 @@ class name. Append dummy `.c' that can be stripped by set_input so %b is correct. */ set_input (concat (main_class_name, "main.c", NULL)); @@ -251,3 +199,42 @@ err = do_spec (jvgenmain_spec); if (err == 0) { +diff -Nur gcc-4.6.0.orig/gcc/opts.c gcc-4.6.0/gcc/opts.c +--- gcc-4.6.0.orig/gcc/opts.c 2011-02-17 23:51:57.000000000 +0100 ++++ gcc-4.6.0/gcc/opts.c 2011-03-31 15:43:52.000000000 +0200 +@@ -477,8 +477,6 @@ + { OPT_LEVELS_2_PLUS, OPT_fschedule_insns2, NULL, 1 }, + #endif + { OPT_LEVELS_2_PLUS, OPT_fregmove, NULL, 1 }, +- { OPT_LEVELS_2_PLUS, OPT_fstrict_aliasing, NULL, 1 }, +- { OPT_LEVELS_2_PLUS, OPT_fstrict_overflow, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_freorder_blocks, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_freorder_functions, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 }, +@@ -501,6 +499,8 @@ + { OPT_LEVELS_3_PLUS_AND_SIZE, OPT_finline_functions, NULL, 1 }, + { OPT_LEVELS_3_PLUS, OPT_funswitch_loops, NULL, 1 }, + { OPT_LEVELS_3_PLUS, OPT_fgcse_after_reload, NULL, 1 }, ++ { OPT_LEVELS_3_PLUS, OPT_fstrict_aliasing, NULL, 1 }, ++ { OPT_LEVELS_3_PLUS, OPT_fstrict_overflow, NULL, 1 }, + { OPT_LEVELS_3_PLUS, OPT_ftree_vectorize, NULL, 1 }, + { OPT_LEVELS_3_PLUS, OPT_fipa_cp_clone, NULL, 1 }, + +@@ -1399,6 +1399,17 @@ + opts, opts_set, loc, dc); + break; + ++ case OPT_Werror_maybe_reset: ++ { ++ char *ev = getenv ("GCC_NO_WERROR"); ++ if ((ev != NULL) && (*ev != '0')) ++ warnings_are_errors = 0; ++ } ++ break; ++ ++ case OPT_fhonour_copts: ++ break; ++ + case OPT_Wlarger_than_: + opts->x_larger_than_size = value; + opts->x_warn_larger_than = value != -1; |