diff options
Diffstat (limited to 'upstream/gcc_doc.patch')
| -rw-r--r-- | upstream/gcc_doc.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/upstream/gcc_doc.patch b/upstream/gcc_doc.patch new file mode 100644 index 0000000..ba76d17 --- /dev/null +++ b/upstream/gcc_doc.patch @@ -0,0 +1,99 @@ +--- a/gcc/doc/invoke.texi 2012-03-01 10:57:59.000000000 +0100 ++++ b/gcc/doc/invoke.texi 2012-07-30 00:57:03.766847851 +0200 +@@ -3216,6 +3216,10 @@ aspects of format checking, the options + @option{-Wformat-nonliteral}, @option{-Wformat-security}, and + @option{-Wformat=2} are available, but are not included in @option{-Wall}. + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{|}pie@r{]}is ++this option enabled by default for C, C++, ObjC, ObjC++. ++To disable, use @option{-Wformat=0}. ++ + @item -Wformat-y2k + @opindex Wformat-y2k + @opindex Wno-format-y2k +@@ -3269,6 +3273,12 @@ currently a subset of what @option{-Wfor + in future warnings may be added to @option{-Wformat-security} that are not + included in @option{-Wformat-nonliteral}.) + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{|}pie@r{]} is ++this option enabled by default for C, C++, ObjC, ObjC++. To disable, ++use @option{-Wno-format-security}, or disable all format warnings ++with @option{-Wformat=0}. To make format security warnings fatal, ++specify @option{-Werror=format-security}. ++ + @item -Wformat=2 + @opindex Wformat=2 + @opindex Wno-format=2 +@@ -6229,6 +6239,13 @@ also turns on the following optimization + Please note the warning under @option{-fgcse} about + invoking @option{-O2} on programs that use computed gotos. + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{|}pie@r{]}, ++@option{-D_FORTIFY_SOURCE=2} is set by default, and is activated ++when @option{-O} is set to 2 or higher. This enables additional ++compile-time and run-time checks for several libc functions. ++To disable, specify either @option{-U_FORTIFY_SOURCE} or ++@option{-D_FORTIFY_SOURCE=0}. ++ + @item -O3 + @opindex O3 + Optimize yet more. @option{-O3} turns on all optimizations specified +@@ -8475,6 +8492,12 @@ functions with buffers larger than 8 byt + when a function is entered and then checked when the function exits. + If a guard check fails, an error message is printed and the program exits. + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{]} this option ++is enabled by default for C, C++, ObjC, ObjC++, if none of ++@option{-fno-stack-protector}, @option{-nostdlib}, ++@option{-fno-stack-protector-all}, @option{nodefaultlibs}, ++nor @option{-ffreestanding} are found. ++ + @item -fstack-protector-all + @opindex fstack-protector-all + Like @option{-fstack-protector} except that all functions are protected. +@@ -9457,6 +9480,12 @@ For predictable results, you must also s + that were used to generate code (@option{-fpie}, @option{-fPIE}, + or model suboptions) when you specify this option. + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{]} this option is ++enabled by default for C, C++, ObjC, ObjC++, if none of @option{-fno-PIE}, ++@option{-fno-pie}, @option{-fPIC}, @option{-fpic}, @option{-fno-PIC}, ++@option{-fno-pic}, @option{-nostdlib}, @option{-nostartfiles}, ++@option{-shared}, @option{-nodefaultlibs}, nor @option{static} are found. ++ + @item -rdynamic + @opindex rdynamic + Pass the flag @option{-export-dynamic} to the ELF linker, on targets +@@ -19125,6 +19154,12 @@ used during linking. + @code{__pie__} and @code{__PIE__}. The macros have the value 1 + for @option{-fpie} and 2 for @option{-fPIE}. + ++NOTE: With configure --enable-espf=@r{[}all@r{|}ssp@r{]} this option is ++enabled by default for C, C++, ObjC, ObjC++, if none of @option{-fno-PIE}, ++@option{-fno-pie}, @option{-fPIC}, @option{-fpic}, @option{-fno-PIC}, ++@option{-fno-pic}, @option{-nostdlib}, @option{-nostartfiles}, ++@option{-shared}, @option{-nodefaultlibs}, nor @option{static} are found. ++ + @item -fno-jump-tables + @opindex fno-jump-tables + Do not use jump tables for switch statements even where it would be +--- a/gcc/doc/install.texi 2012-03-02 10:37:30.000000000 +0100 ++++ b/gcc/doc/install.texi 2012-07-23 18:05:14.160784593 +0200 +@@ -1392,6 +1392,17 @@ do a @samp{make -C gcc gnatlib_and_tools + Specify that the run-time libraries for stack smashing protection + should not be built. + ++@item --enable-espf=@var{list} ++Will turn on some compiler and preprosessor options as default. ++@option{-D_FORTIFY_SOURCE=2}, @option{-Wformat} and ++@option{-Wformat-security} will be turn on as default and depend on ++if you use @samp{all} it will turn on @option{-fstack-protection}and ++@option{-fPIE} by default. if the support is there. If you use ++@samp{ssp} it will turn on @option{-fstack-protection} by default if the ++support is there. If you use @samp{pie} it will turn on @option{-fPIE} ++by default if the support is there. We only support x86-64-*-linux* as target ++for now. ++ + @item --disable-libquadmath + Specify that the GCC quad-precision math library should not be built. + On some systems, the library is required to be linkable when building |