port the mbsd_multi patch to gcc 4.4.0, refresh the other patches

SVN-Revision: 15369
This commit is contained in:
Felix Fietkau 2009-04-24 02:23:11 +00:00
parent 222f37cbde
commit dcd9f20085
7 changed files with 295 additions and 32 deletions

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@ -1,6 +1,6 @@
--- gcc/gcc/config/--- gcc/contrib/regression/objs-gcc.sh
+++ gcc/contrib/regression/objs-gcc.sh
@@ -105,6 +105,10 @@
--- a/contrib/regression/objs-gcc.sh
+++ b/contrib/regression/objs-gcc.sh
@@ -106,6 +106,10 @@
then
make all-gdb all-dejagnu all-ld || exit 1
make install-gdb install-dejagnu install-ld || exit 1
@ -11,8 +11,8 @@
elif [ $H_REAL_TARGET = $H_REAL_HOST ] ; then
make bootstrap || exit 1
make install || exit 1
--- gcc/libjava/classpath/ltconfig
+++ gcc/libjava/classpath/ltconfig
--- a/libjava/classpath/ltconfig
+++ b/libjava/classpath/ltconfig
@@ -603,7 +603,7 @@
# Transform linux* to *-*-linux-gnu*, to support old configure scripts.

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@ -1,7 +1,7 @@
--- gcc-4.0.0/boehm-gc/include/gc.h-orig 2005-04-28 22:28:57.000000000 -0500
+++ gcc-4.0.0/boehm-gc/include/gc.h 2005-04-28 22:30:38.000000000 -0500
@@ -500,7 +500,7 @@
#ifdef __linux__
--- a/boehm-gc/include/gc.h
+++ b/boehm-gc/include/gc.h
@@ -503,7 +503,7 @@
#if defined(__linux__) || defined(__GLIBC__)
# include <features.h>
# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
- && !defined(__ia64__)

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@ -1,8 +1,6 @@
Index: gcc-4.3.0/libstdc++-v3/include/c_global/cstdio
===================================================================
--- gcc-4.3.0/libstdc++-v3/include/c_global/cstdio (revision 129202)
+++ gcc-4.3.0/libstdc++-v3/include/c_global/cstdio (working copy)
@@ -144,7 +144,7 @@
--- a/libstdc++-v3/include/c_global/cstdio
+++ b/libstdc++-v3/include/c_global/cstdio
@@ -139,7 +139,7 @@
_GLIBCXX_END_NAMESPACE

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@ -1,8 +1,6 @@
Index: gcc-4.2/libmudflap/mf-hooks2.c
===================================================================
--- gcc-4.2/libmudflap/mf-hooks2.c (revision 119834)
+++ gcc-4.2/libmudflap/mf-hooks2.c (working copy)
@@ -427,7 +427,7 @@
--- a/libmudflap/mf-hooks2.c
+++ b/libmudflap/mf-hooks2.c
@@ -421,7 +421,7 @@
{
TRACE ("%s\n", __PRETTY_FUNCTION__);
MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
@ -11,7 +9,7 @@ Index: gcc-4.2/libmudflap/mf-hooks2.c
}
@@ -437,7 +437,7 @@
@@ -431,7 +431,7 @@
TRACE ("%s\n", __PRETTY_FUNCTION__);
MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
@ -20,7 +18,7 @@ Index: gcc-4.2/libmudflap/mf-hooks2.c
}
@@ -447,7 +447,7 @@
@@ -441,7 +441,7 @@
TRACE ("%s\n", __PRETTY_FUNCTION__);
MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
@ -29,7 +27,7 @@ Index: gcc-4.2/libmudflap/mf-hooks2.c
}
@@ -456,7 +456,7 @@
@@ -450,7 +450,7 @@
size_t n = strlen (s);
TRACE ("%s\n", __PRETTY_FUNCTION__);
MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
@ -38,7 +36,7 @@ Index: gcc-4.2/libmudflap/mf-hooks2.c
}
@@ -465,7 +465,7 @@
@@ -459,7 +459,7 @@
size_t n = strlen (s);
TRACE ("%s\n", __PRETTY_FUNCTION__);
MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");

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@ -1,6 +1,5 @@
diff -urN gcc-4.4.0/gcc/config/arm/linux-elf.h gcc-4.4.0.new/gcc/config/arm/linux-elf.h
--- gcc-4.4.0/gcc/config/arm/linux-elf.h 2009-02-20 16:20:38.000000000 +0100
+++ gcc-4.4.0.new/gcc/config/arm/linux-elf.h 2009-04-22 15:49:50.000000000 +0200
--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
@@ -60,7 +60,7 @@
%{shared:-lc} \
%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
@ -10,9 +9,8 @@ diff -urN gcc-4.4.0/gcc/config/arm/linux-elf.h gcc-4.4.0.new/gcc/config/arm/linu
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
diff -urN gcc-4.4.0/gcc/config/arm/t-linux gcc-4.4.0.new/gcc/config/arm/t-linux
--- gcc-4.4.0/gcc/config/arm/t-linux 2008-12-19 18:31:12.000000000 +0100
+++ gcc-4.4.0.new/gcc/config/arm/t-linux 2009-04-22 15:49:15.000000000 +0200
--- a/gcc/config/arm/t-linux
+++ b/gcc/config/arm/t-linux
@@ -4,7 +4,10 @@
LIB1ASMSRC = arm/lib1funcs.asm

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@ -0,0 +1,269 @@
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 @@
/* 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 +457,14 @@
enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC);
break;
+ case OPT_Werror_maybe_reset:
+ {
+ char *ev = getenv ("GCC_NO_WERROR");
+ if ((ev != NULL) && (*ev != '0'))
+ cpp_opts->warnings_are_errors = 0;
+ }
+ break;
+
case OPT_Wformat:
set_Wformat (value);
break;
@@ -690,6 +701,12 @@
flag_exceptions = value;
break;
+ case OPT_fhonour_copts:
+ if (c_language == clk_c) {
+ honour_copts++;
+ }
+ break;
+
case OPT_fimplement_inlines:
flag_implement_inlines = value;
break;
@@ -1209,6 +1226,47 @@
return false;
}
+ if (c_language == clk_c) {
+ char *ev = getenv ("GCC_HONOUR_COPTS");
+ int evv;
+ if (ev == NULL)
+ evv = -1;
+ else if ((*ev == '0') || (*ev == '\0'))
+ evv = 0;
+ else if (*ev == '1')
+ evv = 1;
+ else if (*ev == '2')
+ evv = 2;
+ else if (*ev == 's')
+ evv = -1;
+ else {
+ warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
+ evv = 1; /* maybe depend this on something like MIRBSD_NATIVE? */
+ }
+ if (evv == 1) {
+ if (honour_copts == 0) {
+ error ("someone does not honour COPTS at all in lenient mode");
+ return false;
+ } else if (honour_copts != 1) {
+ warning (0, "someone does not honour COPTS correctly, passed %d times",
+ honour_copts);
+ }
+ } else if (evv == 2) {
+ if (honour_copts == 0) {
+ error ("someone does not honour COPTS at all in strict mode");
+ return false;
+ } else if (honour_copts != 1) {
+ error ("someone does not honour COPTS correctly, passed %d times",
+ honour_copts);
+ return false;
+ }
+ } else if (evv == 0) {
+ if (honour_copts != 1)
+ inform ("someone does not honour COPTS correctly, passed %d times",
+ honour_copts);
+ }
+ }
+
return true;
}
--- a/gcc/c.opt
+++ b/gcc/c.opt
@@ -215,6 +215,10 @@
C ObjC RejectNegative Warning
This switch is deprecated; use -Werror=implicit-function-declaration instead
+Werror-maybe-reset
+C ObjC C++ ObjC++
+; Documented in common.opt
+
Wfloat-equal
C ObjC C++ ObjC++ Var(warn_float_equal) Warning
Warn if testing floating point numbers for equality
@@ -609,6 +613,9 @@
fhonor-std
C++ ObjC++
+fhonour-copts
+C ObjC C++ ObjC++ RejectNegative
+
fhosted
C ObjC
Assume normal C execution environment
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -102,6 +102,10 @@
Common Joined
Treat specified warning as error
+Werror-maybe-reset
+Common
+If environment variable GCC_NO_WERROR is set, act as -Wno-error
+
Wextra
Common Warning
Print extra (possibly unwanted) warnings
@@ -573,6 +577,9 @@
Common Report Var(flag_guess_branch_prob) Optimization
Enable guessing of branch probabilities
+fhonour-copts
+Common RejectNegative
+
; 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
@@ -896,9 +896,6 @@
flag_schedule_insns_after_reload = opt2;
#endif
flag_regmove = opt2;
- flag_strict_aliasing = opt2;
- flag_strict_overflow = opt2;
- flag_delete_null_pointer_checks = opt2;
flag_reorder_blocks = opt2;
flag_reorder_functions = opt2;
flag_tree_vrp = opt2;
@@ -922,6 +919,9 @@
/* -O3 optimizations. */
opt3 = (optimize >= 3);
+ flag_strict_aliasing = opt3;
+ flag_strict_overflow = opt3;
+ flag_delete_null_pointer_checks = 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_Wextra:
set_Wextra (value);
break;
--- a/gcc/doc/cppopts.texi
+++ b/gcc/doc/cppopts.texi
@@ -164,6 +164,11 @@
Make all warnings into hard errors. Source code which triggers warnings
will be rejected.
+ at item -Werror-maybe-reset
+ at opindex Werror-maybe-reset
+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
+variable is set to anything other than 0 or empty.
+
@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
-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
-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 @@
@option{-Wall} and by @option{-pedantic}, which can be disabled with
@option{-Wno-pointer-sign}.
+ at item -Werror-maybe-reset
+ at opindex Werror-maybe-reset
+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
+variable is set to anything other than 0 or empty.
+
+ at item -fhonour-copts
+ at opindex fhonour-copts
+If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
+given at least once, and warn if it is given more than once.
+If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
+given exactly once.
+If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
+is not given exactly once.
+The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
+This flag and environment variable only affect the C language.
+
@item -Wstack-protector
@opindex Wstack-protector
@opindex Wno-stack-protector
@@ -5699,7 +5715,7 @@
second branch or a point immediately following it, depending on whether
the condition is known to be true or false.
-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
+Enabled at levels @option{-O3}.
@item -fsplit-wide-types
@opindex fsplit-wide-types
@@ -5844,7 +5860,7 @@
@option{-fno-delete-null-pointer-checks} to disable this optimization
for programs which depend on that behavior.
-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
+Enabled at levels @option{-O3}.
@item -fexpensive-optimizations
@opindex fexpensive-optimizations
--- a/gcc/java/jvspec.c
+++ b/gcc/java/jvspec.c
@@ -670,6 +670,7 @@
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));
+ putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack! */
err = do_spec (jvgenmain_spec);
if (err == 0)
{

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@ -1,6 +1,6 @@
--- gcc-4.3.1/gcc/config.gcc.old 2008-06-17 23:49:00.000000000 +0200
+++ gcc-4.3.1/gcc/config.gcc 2008-06-17 23:03:07.000000000 +0200
@@ -1630,6 +1630,7 @@
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1499,6 +1499,7 @@
if test x$sjlj != x1; then
tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
fi