Commit Graph

23 Commits

Author SHA1 Message Date
Dimitry Andric
d592e78278 Avoid "cc1: warning: is shorter than expected" when using GNU cpp in
combination with dtrace scripts, which have "#!/usr/sbin/dtrace -Cs"
shebang lines.  This is because dtrace positions the file pointer after
the shebang line, before passing the file to GNU cpp.

To fix the warning, adjust the size downwards by the current position,
after a bit of sanity checking.

Suggested by:	avg
MFC after:	1 week
2014-03-26 19:57:50 +00:00
Pedro F. Giffuni
5bfc7db451 gcc: Add support for Apple's Block extension
Block objects [1] are a C-level syntactic and runtime feature. They
are similar to standard C functions, but in addition to executable
code they may also contain variable bindings to automatic (stack)
or managed (heap) memory. A block can therefore maintain a set of
state (data) that it can use to impact behavior when executed.

This port is based on Apple's GCC 5646 with some bugfixes from
Apple GCC 5666.3. It has some small differences with the support
in clang, which remains the recommended compiler.

Perhaps the most notable difference is that in GCC that __block
is not actually a keyword, but a macro. There will be workaround
for this issue in a near future. Other issues can be consulted in
the clang documentation [2]

For better compatiblity with Apple's GCC and llvm-gcc some related
fixes and features from Apple have been included. Support for the
non-standard nested functions in GCC is now off by default.

No effort was made to update the ObjC support since FreeBSD doesn't
carry ObjC in the base system, but some of the code crept in and
was more difficult to remove than to adjust.

Reference:
[1]
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html
[2]
http://clang.llvm.org/compatibility.html#block-variable-initialization

Obtained from:	Apple GCC 4.2
MFC after:	3 weeks
2014-01-05 00:43:28 +00:00
Pedro F. Giffuni
e1b3bb5380 libcpp: misc fixes from Apple's GCC.
Fixes some bugs detected by Apple:
#error with unmatched quotes
pragma mark

Obtained from:	Apple GCC 4.2 - 5553
MFC after:	1 week
2014-01-05 00:32:38 +00:00
Pedro F. Giffuni
cfbe5d01ee gcc: add Apple compatible -Wnewline-eof
GCC 4.2 and previous have always warned about
"No newline at end of file".

Upstream GCC removed the warning completely but
Apple made it an optional warning. Adopt it for
compatibility with older GCC and clang.

While here, add comment to complement r258712.

Obtained from:	Apple Inc. (Apple GCC 4.2 - 5531)
MFC after:	1 week
2013-12-18 14:53:36 +00:00
Pedro F. Giffuni
51e28103da libcpp: Merge fixes from upstream
GCC preprocessor/29966:
* macro.c (lex_expansion_token): Save and restore cpp_reader's
cur_token.
(_cpp_create_definition): Don't restore cur_token here.
* lex.c (_cpp_lex_token): Added assertion.

GCC preprocessor/28709:
* macro.c (paste_tokens): Remove PASTE_LEFT from the old lhs.

GCC c/31924
* expr.c (interpret_float_suffix): Check for invalid suffix.

GCC preprocessor/14331
* lex.c (_cpp_get_fresh_line):  Don't warn if no newline at EOF.

Fixup whitespacing

Obtained from:	gcc per-4.3 (rev. 121340, 124356, 124358, 124730,
				  125212, 125255 ; GPLv2)
MFC after:	3 weeks
2013-12-02 03:47:08 +00:00
Pedro F. Giffuni
6d94bd07cc libiberty: upstream updates.
There is a new ChangeLog.gcc43 file but most notable:

* floatformat.c (get_field): Fix segfault with little-endian word
  order on 64-bit hosts.
  (put_field): Likewise.
  (min): Move definition.

gcc/cp/ChangeLog
2007-05-04  Geoffrey Keating  <geoffk@apple.com>

  PR 31775
  * mangle.c (write_mangled_name): Mangle static variable names.
  (write_unqualified_name): Use local-source-name for
  namespace-scope static variables.
(Completes FreeBSD's r258017 )

Obtained from:	gcc 4.3 (rev. 118552, 120097, 20698, 120702,
			 121364, 122972, 126588; GPLv2)
MFC after:	2 weeks
2013-12-01 22:08:19 +00:00
Pedro F. Giffuni
729f64d6ae libcpp: fix an underflow.
Obtained from:	OpenBSD (Rev 1.2)
MFC after:	2 weeks
2013-11-28 16:36:03 +00:00
Matthew D Fleming
9b76499a0b Fix a segfault / internal compiler error.
Among other causes, when gcc throws a warning before parsing any tokens,
the cur_token pointer is at the beginning of malloc'd memory.
Dereferencing cur_token[-1] can cause a segfault.

Code taken from OpenBSD
http://www.openbsd.org/cgi-bin/cvsweb/src/gnu/gcc/libcpp/errors.c
which was a more complete fix than the one I originally coded.

MFC after:	1 week
2013-11-26 17:11:43 +00:00
Pedro F. Giffuni
b5e1e9602d libcpp: Keep a record of changes from upstream GCC (pre-43).
This makes it easier to track the changes in the rare event of the code
being distributed without access to version control.

MFC after:	3 weeks
2013-11-24 20:54:52 +00:00
Pedro F. Giffuni
81e5b01765 gcc: Bring updates from Google's enhanced gcc-4.2.1.
Google released and enhanced version of gcc-4.2.1 plus their local
patches for Android[1].

The patches are owned by Google and the license hasn't been changed
from  the original GPLv2. We are only bringing a subset of the
available patches that may be helpful in FreeBSD. Changes specific
to android are not included.

From the README.google file[1].

Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1:

gcc/Makefile.in
gcc/c-common.c
gcc/c-common.h
gcc/c-opts.c
gcc/c-typeck.c
gcc/cp/typeck.c
gcc/doc/invoke.texi
gcc/flags.h
gcc/opts.c
gcc/tree-flow.h
gcc/tree-ssa-alias-warnings.c
gcc/tree-ssa-alias.c

 Backport of -Wstrict-aliasing from mainline.
  Silvius Rus <rus@google.com>

gcc/coverage.c:
  Patch coverage_checksum_string for PR 25351.
  Seongbae Park <spark@google.com>
  Not yet submitted to FSF.

gcc/c-opts.c
gcc/c-ppoutput.c
gcc/c.opt
gcc/doc/cppopts.texi
libcpp/Makefile.in
libcpp/directives-only.c
libcpp/directives.c
libcpp/files.c
libcpp/include/cpplib.h
libcpp/init.c
libcpp/internal.h
libcpp/macro.c
  Support for -fdirectives-only.
  Ollie Wild <aaw@google.com>.
  Submitted to FSF but not yet approved.

libstdc++-v3/include/ext/hashtable.h
  http://b/742065
  http://b/629994
  Reduce min size of hashtable for hash_map, hash_set from 53 to 5

libstdc++-v3/include/ext/hashtable.h
  http://b/629994
  Do not iterate over buckets if hashtable is empty.

gcc/common.opt
gcc/doc/invoke.texi
gcc/flags.h
gcc/gimplify.c
gcc/opts.c
  Add Saito's patch for -finstrument-functions-exclude-* options.

gcc/common.opt
gcc/doc/invoke.texi
gcc/final.c
gcc/flags.h
gcc/opts.c
gcc/testsuite/gcc.dg/Wframe-larger-than.c
  Add a new flag -Wframe-larger-than- which enables a new warning
  when a frame size of a function is larger than specified.
  This patch hasn't been integrated into gcc mainline yet.

gcc/tree-vrp.c
  Add a hack to avoid using ivopts information for pointers starting
  at constant values.

Reference:

[1]
https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/

Obtained from:	Google Inc.
MFC after:	3 weeks
2013-11-23 18:32:53 +00:00
Pedro F. Giffuni
966b6fbbae libcpp: preprocessor speedup patches from mainline.
* lex.c (_cpp_clean_line): Add uses of __builtin_expect.  Don't
look backward at the end of the line unless we saw a backslash.

* internal.h (struct cpp_reader): Add new fields:
nonexistent_file_hash and nonexistent_file_ob.
* files.c: Include "obstack.h".
(find_file_in_dir): Before trying to open the file, look up the
path name in the hash table of nonexistent files.  After failing
to open the file, add the path name to the hash table.
(_cpp_find_file): Cache the results of looking up the file name
starting with the quote and bracket chain heads, if we can.
(nonexistent_file_hash_eq): New static function.
(_cpp_init_files): Initialize pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.
(_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.

Obtained from:	gcc 4.3 (rev. 120263, 124929 ; GPLv2)
MFC after:	3 weeks
2013-11-16 01:07:02 +00:00
Pedro F. Giffuni
0944614655 cxxfilt: small changes from Apple's developer tools
From Apple's Developer Tools 4.0 [1]:

demangle.patch
2007-05-05  Geoffrey Keating
	(d_name): Detect local-source-name.
	(d_prefix): Likewise.
	(d_unqualified_name): Implement local-source-name.

libiberty-printf.patch

MFC after:	1 month

[1] http://opensource.apple.com/source/cxxfilt/cxxfilt-9/patches/
2013-11-11 21:18:02 +00:00
Sean Bruno
b01ec0d4e7 Quiesce warning by including appropriate header file 2013-10-29 20:36:04 +00:00
Sean Bruno
4971c4adad Resolve clang warning about a use of syslog. By using a proper enforcement
of string format in a call so syslog

/usr/src/gnu/lib/libssp/../../../contrib/gcclibs/libssp/ssp.c:137:23:
warning: format string is not a string literal (potentially insecure)
      [-Wformat-security]
    syslog (LOG_CRIT, msg1);
                      ^~~~

Reviewed by:	dim@
2013-10-21 22:55:56 +00:00
Pedro F. Giffuni
e639f25706 Add support for the GCC binary integer constants extension.
This is required to build the i965 backend with newer versions of mesa.

Original patch from Joerg Wunsch in GCC Bug 23479, under the GPLv2;
also taken from there in OpenBSD.

Obtained from:	gcc 4.3 (rev. 125346; GPLv2)
MFC after:	5 days
2013-08-31 20:33:37 +00:00
Pedro F. Giffuni
691f7fadcd Add support for "d" floating-point suffix, as defined by draft N1312
of TR 24732. Emit pedantic warning if the feature is being used.

Should solve GCC bug 39027.

Obtained from:	OpenBSD
MFC after:	2 weeks
2013-05-12 15:29:35 +00:00
Eitan Adler
37a6031461 Clean up hardcoded ar(1) flags in the tree to use the global ARFLAGS in
share/mk/sys.mk instead.

This is part of a medium term project to permit deterministic builds of
FreeBSD.

Submitted by:	Erik Cederstrand <erik@cederstrand.dk>
Reviewed by:	imp, toolchain@
Approved by:	cperciva
MFC after:	2 weeks
2012-12-06 01:31:25 +00:00
Ed Schouten
bdc971eb19 Add support for __COUNTER__.
__COUNTER__ allows one to obtain incrementing (read: unique) numbers
from the C preprocesor. This is useful when implementing things like a
robust implementation of CTASSERT(), which currently fails when using
it more than once on a single line of code. Probably not likely to cause
any breakage, but still.

__COUNTER__ was also added to GCC 4.3, but since that implementation is
GPLv3 licensed, I took the liberty of implementing it without looking at
any upstream sources. Therefore, this version is licensed under the same
license as the rest of the code; GPLv2.
2011-12-13 17:34:47 +00:00
Ben Laurie
7d214dd4e2 Fix clang compile warnings.
Approved by:	philip (mentor)
2011-05-22 22:14:15 +00:00
Alexander Kabaev
2bdb3bd910 This commit was generated by cvs2svn to compensate for changes in r171831,
which included commits to RCS files with non-trunk default branches.
2007-08-14 02:52:47 +00:00
Alexander Kabaev
df954420dd GCC 4.2.1 release miscellaneous support libraries. 2007-08-14 02:52:47 +00:00
Alexander Kabaev
9f4623d21f Re-add local FreeBSD change: prefer /tmp to /var/tmp and /usr/tmp
for temporary files.
2007-05-19 03:17:00 +00:00
Alexander Kabaev
c7ca977ef2 GCC 4.2.0 release miscellaneous support libraries. 2007-05-19 01:27:20 +00:00