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undefined behavior. The code used this macro to avoid problems on some
broken systems which define SSIZE_MAX incorrectly, but this is not
needed on FreeBSD, obviously.
MFC after: 3 days
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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
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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
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* 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
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