head	1.1;
branch	1.1.1;
access;
symbols
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	netbsd-11-0-RC4:1.1.1.7
	netbsd-11-0-RC3:1.1.1.7
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	netbsd-10-0-RC5:1.1.1.6
	netbsd-10-0-RC4:1.1.1.6
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	yamt-pagecache-base:1.1.1.1
	gcc-4-5-3:1.1.1.1
	FSF:1.1.1;
locks; strict;
comment	@# @;


1.1
date	2011.06.21.01.24.02;	author mrg;	state Exp;
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next	;

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next	1.1.1.2;

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desc
@@


1.1
log
@Initial revision
@
text
@
## This is used in all Makefile.am's.  Set defaults here.

# May be used by various substitution variables.
gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)

MAINT_CHARSET = latin1

mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs
PWD_COMMAND = $${PWDCMD-pwd}
STAMP = echo timestamp >

toolexecdir = $(glibcxx_toolexecdir)
toolexeclibdir = $(glibcxx_toolexeclibdir)

# These bits are all figured out from configure.  Look in acinclude.m4
# or configure.ac to see how they are set.  See GLIBCXX_EXPORT_FLAGS.
CONFIG_CXXFLAGS = \
	$(SECTION_FLAGS) $(EXTRA_CXX_FLAGS)
WARN_CXXFLAGS = \
	$(WARN_FLAGS) $(WERROR) -fdiagnostics-show-location=once

# -I/-D flags to pass when compiling.
AM_CPPFLAGS = $(GLIBCXX_INCLUDES)

@


1.1.1.1
log
@initial import of GCC 4.5.3 sources.  changes since 4.1 are way too numerous
to review, please see http://gcc.gnu.org/gcc-4.5/changes.html (and the 4.2,
4.3 and 4.4 versions, too.)

this includes the core, c++, objc and the non java/ada/fortran parts of the
testsuite.
@
text
@@


1.1.1.1.8.1
log
@Rebase to HEAD as of a few days ago.
@
text
@a15 6
if ENABLE_WERROR
WERROR_FLAG=$(WERROR)
else
WERROR_FLAG=
endif

d19 1
a19 2
	$(SECTION_FLAGS) $(HWCAP_FLAGS) -frandom-seed=$@@

d21 1
a21 1
	$(WARN_FLAGS) $(WERROR_FLAG) -fdiagnostics-show-location=once 
@


1.1.1.1.2.1
log
@sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")
@
text
@a15 6
if ENABLE_WERROR
WERROR_FLAG=$(WERROR)
else
WERROR_FLAG=
endif

d19 1
a19 2
	$(SECTION_FLAGS) $(HWCAP_FLAGS) -frandom-seed=$@@

d21 1
a21 1
	$(WARN_FLAGS) $(WERROR_FLAG) -fdiagnostics-show-location=once 
@


1.1.1.2
log
@import GCC 4.8 branch at r206687.

highlights from: http://gcc.gnu.org/gcc-4.6/changes.html

   GCC now has stricter checks for invalid command-line options
   New -Wunused-but-set-variable and -Wunused-but-set-parameter
      warnings
   Many platforms have been obsoleted
   Link-time optimization improvements
   A new switch -fstack-usage has been added
   A new function attribute leaf was introduced
   A new warning, enabled by -Wdouble-promotion
   Support for selectively enabling and disabling warnings via
      #pragma GCC diagnostic has been added
   There is now experimental support for some features from the
      upcoming C1X revision of the ISO C standard
   Improved experimental support for the upcoming C++0x ISO C++
      standard
   G++ now issues clearer diagnostics in several cases
   Updates for ARM, x86, MIPS, PPC/PPC64, SPARC
   Darwin, FreeBSD, Solaris 2, MinGW and Cygwin now all support
      __float128 on 32-bit and 64-bit x86 targets. [*1]

highlights from: http://gcc.gnu.org/gcc-4.7/changes.html

   The -fconserve-space flag has been deprecated
   Support for a new parameter --param case-values-threshold=n
      was added
   Interprocedural and Link-time optimization improvements
   A new built-in, __builtin_assume_aligned, has been added
   A new warning option -Wunused-local-typedefs was added
   A new experimental command-line option -ftrack-macro-expansion
      was added
   Support for atomic operations specifying the C++11/C11 memory
      model has been added
   There is support for some more features from the C11 revision
      of the ISO C standard
   Improved experimental support for the new ISO C++ standard,
      C++11
   Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE*
   A new option (-grecord-gcc-switches) was added

highlights from: http://gcc.gnu.org/gcc-4.8/changes.html

   GCC now uses C++ as its implementation language.  This means
      that to build GCC from sources, you will need a C++
      compiler that understands C++ 2003
   DWARF4 is now the default when generating DWARF debug
      information
   A new general optimization level, -Og, has been introduced
   A new option -ftree-partial-pre was added
   The option -fconserve-space has been removed
   The command-line options -fipa-struct-reorg and
      -fipa-matrix-reorg have been removed
   Interprocedural and Link-time optimization improvements
   AddressSanitizer, a fast memory error detector, has been
      added  [*2]
   A new -Wsizeof-pointer-memaccess warning has been added
   G++ now supports a -std=c++1y option for experimentation
      with features proposed for the next revision of the
      standard, expected around 2014
   Improved experimental support for the new ISO C++ standard,
      C++11
   A new port has been added to support AArch64
   Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE*


[*1] we should support this too!
[*2] we should look into this.
     https://code.google.com/p/address-sanitizer/
@
text
@a15 6
if ENABLE_WERROR
WERROR_FLAG=$(WERROR)
else
WERROR_FLAG=
endif

d19 1
a19 2
	$(SECTION_FLAGS) $(HWCAP_FLAGS) -frandom-seed=$@@

d21 1
a21 1
	$(WARN_FLAGS) $(WERROR_FLAG) -fdiagnostics-show-location=once 
@


1.1.1.3
log
@import GCC 5.3.0.  see these urls for details which are too large to
include here:

	http://gcc.gnu.org/gcc-4.9/changes.html
	http://gcc.gnu.org/gcc-5/changes.html

(note that GCC 5.x is a release stream like GCC 4.9.x, 4.8.x, etc.)


the main issues we will have are:

The default mode for C is now -std=gnu11 instead of -std=gnu89.

ARM:
The deprecated option -mwords-little-endian has been removed.
The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame
 which are only applicable to the old ABI have been deprecated.

MIPS:
The o32 ABI has been modified and extended. The o32 64-bit
 floating-point register support is now obsolete and has been removed.
 It has been replaced by three ABI extensions FPXX, FP64A, and FP64.
 The meaning of the -mfp64 command-line option has changed. It is now
 used to enable the FP64A and FP64 ABI extensions.
@
text
@a21 6
if ENABLE_EXTERN_TEMPLATE
XTEMPLATE_FLAGS = -fno-implicit-templates
else
XTEMPLATE_FLAGS =
endif

@


1.1.1.4
log
@import GCC 6.4.0.  see this url for details which are too large to
include here:

   http://gcc.gnu.org/gcc-6/changes.html

the main visible changes appear to be:

- The default mode for C++ is now -std=gnu++14 instead of -std=gnu++98.
- The C and C++ compilers now support attributes on enumerators.
- Diagnostics can now contain "fix-it hints"
- more warnings (some added to -Wall)
@
text
@d37 1
a37 1
AM_CPPFLAGS = $(GLIBCXX_INCLUDES) $(CPPFLAGS)
@


1.1.1.4.4.1
log
@Sync with HEAD
@
text
@d5 1
a5 1
gcc_version := $(shell @@get_gcc_base_ver@@ $(top_srcdir)/../gcc/BASE-VER)
d31 1
a31 1
	$(SECTION_FLAGS) $(HWCAP_CFLAGS) -frandom-seed=$@@
@


1.1.1.4.2.1
log
@Sync with HEAD
@
text
@d5 1
a5 1
gcc_version := $(shell @@get_gcc_base_ver@@ $(top_srcdir)/../gcc/BASE-VER)
d31 1
a31 1
	$(SECTION_FLAGS) $(HWCAP_CFLAGS) -frandom-seed=$@@
@


1.1.1.5
log
@import GCC 7.4.0.  main changes include:

The non-standard C++0x type traits has_trivial_default_constructor,
has_trivial_copy_constructor and has_trivial_copy_assign have been
removed.

On ARM targets (arm*-*-*), a bug introduced in GCC 5 that affects
conformance to the procedure call standard (AAPCS) has been fixed.

Many optimiser improvements

DWARF-5 support.

Many new and enhanced warnings.

Warnings about format strings now underline the pertinent part of
the string, and can offer suggested fixes.

Several new warnings related to buffer overflows and buffer
truncation.

New __builtin_add_overflow_p, __builtin_sub_overflow_p,
__builtin_mul_overflow_p built-ins added that test for overflow.

The C++ front end has experimental support for all of the current
C++17 draft.

The -fverbose-asm option has been expanded to prints comments
showing the source lines that correspond to the assembly.

The gcc and g++ driver programs will now provide suggestions for
misspelled arguments to command-line options.


AArch64 specific:

GCC has been updated to the latest revision of the procedure call
standard (AAPCS64) to provide support for parameter passing when
data types have been over-aligned.

The ARMv8.2-A and ARMv8.3-A architecture are now supported.

ARM specific:

Support for the ARMv5 and ARMv5E architectures has been
deprecated (which have no known implementations).

A new command-line option -mpure-code has been added. It does not
allow constant data to be placed in code sections.

x86 specific:

Support for the AVX-512 4FMAPS, 4VNNIW, VPOPCNTDQ and Software
Guard Extensions (SGX) ISA extensions has been added.

PPC specific:

GCC now diagnoses inline assembly that clobbers register r2.

RISC-V specific:

Support for the RISC-V instruction set has been added.

SH specific:

Support for SH5/SH64 has been removed.

Support for SH2A has been enhanced.
@
text
@d5 1
a5 1
gcc_version := $(shell @@get_gcc_base_ver@@ $(top_srcdir)/../gcc/BASE-VER)
d31 1
a31 1
	$(SECTION_FLAGS) $(HWCAP_CFLAGS) -frandom-seed=$@@
@


1.1.1.6
log
@initial import of GCC 9.3.0.  changes include:

- live patching support
- shell completion help
- generally better diagnostic output (less verbose/more useful)
- diagnostics and optimisation choices can be emitted in json
- asan memory usage reduction
- many general, and specific to switch, inter-procedure,
  profile and link-time optimisations.  from the release notes:
  "Overall compile time of Firefox 66 and LibreOffice 6.2.3 on
  an 8-core machine was reduced by about 5% compared to GCC 8.3"
- OpenMP 5.0 support
- better spell-guesser
- partial experimental support for c2x and c++2a
- c++17 is no longer experimental
- arm AAPCS GCC 6-8 structure passing bug fixed, may cause
  incompatibility (restored compat with GCC 5 and earlier.)
- openrisc support
@
text
@d17 1
a17 1
WERROR_FLAG = -Werror
d19 1
a19 1
WERROR_FLAG =
@


1.1.1.7
log
@initial import of GCC 12.3.0.

major changes in GCC 11 included:

- The default mode for C++ is now -std=gnu++17 instead of -std=gnu++14.
- When building GCC itself, the host compiler must now support C++11,
  rather than C++98.
- Some short options of the gcov tool have been renamed: -i to -j and
  -j to -H.
- ThreadSanitizer improvements.
- Introduce Hardware-assisted AddressSanitizer support.
- For targets that produce DWARF debugging information GCC now defaults
  to DWARF version 5. This can produce up to 25% more compact debug
  information compared to earlier versions.
- Many optimisations.
- The existing malloc attribute has been extended so that it can be
  used to identify allocator/deallocator API pairs. A pair of new
  -Wmismatched-dealloc and -Wmismatched-new-delete warnings are added.
- Other new warnings:
  -Wsizeof-array-div, enabled by -Wall, warns about divisions of two
    sizeof operators when the first one is applied to an array and the
    divisor does not equal the size of the array element.
  -Wstringop-overread, enabled by default, warns about calls to string
    functions reading past the end of the arrays passed to them as
    arguments.
  -Wtsan, enabled by default, warns about unsupported features in
    ThreadSanitizer (currently std::atomic_thread_fence).
- Enchanced warnings:
  -Wfree-nonheap-object detects many more instances of calls to
    deallocation functions with pointers not returned from a dynamic
    memory allocation function.
  -Wmaybe-uninitialized diagnoses passing pointers or references to
    uninitialized memory to functions taking const-qualified arguments.
  -Wuninitialized detects reads from uninitialized dynamically
    allocated memory.
  -Warray-parameter warns about functions with inconsistent array forms.
  -Wvla-parameter warns about functions with inconsistent VLA forms.
- Several new features from the upcoming C2X revision of the ISO C
  standard are supported with -std=c2x and -std=gnu2x.
- Several C++20 features have been implemented.
- The C++ front end has experimental support for some of the upcoming
  C++23 draft.
- Several new C++ warnings.
- Enhanced Arm, AArch64, x86, and RISC-V CPU support.
- The implementation of how program state is tracked within
  -fanalyzer has been completely rewritten with many enhancements.

see https://gcc.gnu.org/gcc-11/changes.html for a full list.

major changes in GCC 12 include:

- An ABI incompatibility between C and C++ when passing or returning
  by value certain aggregates containing zero width bit-fields has
  been discovered on various targets. x86-64, ARM and AArch64
  will always ignore them (so there is a C ABI incompatibility
  between GCC 11 and earlier with GCC 12 or later), PowerPC64 ELFv2
  always take them into account (so there is a C++ ABI
  incompatibility, GCC 4.4 and earlier compatible with GCC 12 or
  later, incompatible with GCC 4.5 through GCC 11). RISC-V has
  changed the handling of these already starting with GCC 10. As
  the ABI requires, MIPS takes them into account handling function
  return values so there is a C++ ABI incompatibility with GCC 4.5
  through 11.
- STABS: Support for emitting the STABS debugging format is
  deprecated and will be removed in the next release. All ports now
  default to emit DWARF (version 2 or later) debugging info or are
  obsoleted.
- Vectorization is enabled at -O2 which is now equivalent to the
  original -O2 -ftree-vectorize -fvect-cost-model=very-cheap.
- GCC now supports the ShadowCallStack sanitizer.
- Support for __builtin_shufflevector compatible with the clang
  language extension was added.
- Support for attribute unavailable was added.
- Support for __builtin_dynamic_object_size compatible with the
  clang language extension was added.
- New warnings:
  -Wbidi-chars warns about potentially misleading UTF-8
    bidirectional control characters.
  -Warray-compare warns about comparisons between two operands of
    array type.
- Some new features from the upcoming C2X revision of the ISO C
  standard are supported with -std=c2x and -std=gnu2x.
- Several C++23 features have been implemented.
- Many C++ enhancements across warnings and -f options.

see https://gcc.gnu.org/gcc-12/changes.html for a full list.
@
text
@a27 6
if GLIBCXX_LDBL_ALT128_COMPAT
LDBL_128_FLAGS = $(LONG_DOUBLE_128_FLAGS)
else
LDBL_128_FLAGS =
endif

d31 1
a31 1
	$(SECTION_FLAGS) $(HWCAP_CFLAGS) -frandom-seed=$@@ $(LDBL_128_FLAGS)
@