diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index c0d458588f0..342ac14834e 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -11,7 +11,7 @@ @c man begin COPYRIGHT Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, -1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 +1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document @@ -328,7 +328,8 @@ Objective-C and Objective-C++ Dialects}. -fstack-usage -ftest-coverage -ftime-report -fvar-tracking @gol -fvar-tracking-assignments -fvar-tracking-assignments-toggle @gol -g -g@var{level} -gtoggle -gcoff -gdwarf-@var{version} @gol --ggdb -gstabs -gstabs+ -gstrict-dwarf -gno-strict-dwarf @gol +-ggdb -grecord-gcc-switches -gno-record-gcc-switches @gol +-gstabs -gstabs+ -gstrict-dwarf -gno-strict-dwarf @gol -gvms -gxcoff -gxcoff+ @gol -fno-merge-debug-strings -fno-dwarf2-cfi-asm @gol -fdebug-prefix-map=@var{old}=@var{new} @gol @@ -2352,6 +2353,18 @@ an instance of a derived class through a pointer to a base class if the base class does not have a virtual destructor. This warning is enabled by @option{-Wall}. +@item -Wno-narrowing @r{(C++ and Objective-C++ only)} +@opindex Wnarrowing +@opindex Wno-narrowing +With -std=c++0x, suppress the diagnostic required by the standard for +narrowing conversions within @samp{@{ @}}, e.g. + +@smallexample +int i = @{ 2.2 @}; // error: narrowing from double to int +@end smallexample + +This flag can be useful for compiling valid C++98 code in C++0x mode. + @item -Wnoexcept @r{(C++ and Objective-C++ only)} @opindex Wnoexcept @opindex Wno-noexcept @@ -4692,6 +4705,20 @@ use, some non-conflicting DWARF 3 extensions in the unwind tables. Version 4 may require GDB 7.0 and @option{-fvar-tracking-assignments} for maximum benefit. +@item -grecord-gcc-switches +@opindex grecord-gcc-switches +This switch causes the command line options, that were used to invoke the +compiler and may affect code generation, to be appended to the +DW_AT_producer attribute in DWARF debugging information. The options +are concatenated with spaces separating them from each other and from +the compiler version. See also @option{-frecord-gcc-switches} for another +way of storing compiler options into the object file. + +@item -gno-record-gcc-switches +@opindex gno-record-gcc-switches +Disallow appending command line options to the DW_AT_producer attribute +in DWARF debugging information. This is the default. + @item -gstrict-dwarf @opindex gstrict-dwarf Disallow using extensions of later DWARF standard version than selected @@ -18035,6 +18062,8 @@ usually takes the form of a section containing ASCII text. This switch is related to the @option{-fverbose-asm} switch, but that switch only records information in the assembler output file as comments, so it never reaches the object file. +See also @option{-grecord-gcc-switches} for another +way of storing compiler options into the object file. @item -fpic @opindex fpic |