diff options
Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 7bcf978..a38d293 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -1075,14 +1075,26 @@ code. @item --enable-host-shared Specify that the @emph{host} code should be built into position-independent -machine code (with -fPIC), allowing it to be used within shared libraries, -but yielding a slightly slower compiler. +machine code (with @option{-fPIC}), allowing it to be used within shared +libraries, but yielding a slightly slower compiler. This option is required when building the libgccjit.so library. Contrast with @option{--enable-shared}, which affects @emph{target} libraries. +@item --enable-host-pie +Specify that the @emph{host} executables should be built into +position-independent executables (with @option{-fPIE} and @option{-pie}), +yielding a slightly slower compiler (but faster than +@option{--enable-host-shared}). Position-independent executables are loaded +at random addresses each time they are executed, therefore provide additional +protection against Return Oriented Programming (ROP) attacks. + +@option{--enable-host-pie}) may be used with @option{--enable-host-shared}), +in which case @option{-fPIC} is used when compiling, and @option{-pie} when +linking. + @item @anchor{with-gnu-as}--with-gnu-as Specify that the compiler should assume that the assembler it finds is the GNU assembler. However, this does not modify |