| Message ID | 1381523083.30976.76.camel@surprise |
|---|---|
| State | New |
| Headers | show |
On Fri, 11 Oct 2013, David Malcolm wrote: > On Thu, 2013-10-10 at 01:05 +0000, Joseph S. Myers wrote: > > On Wed, 9 Oct 2013, David Malcolm wrote: > > > > > This patch adds an "--enable-host-shared" option throughout the various > > > configure/Make machinery for host code, adding "-fPIC" where appropriate > > > when enabled. > > > > Please document this in install.texi (even if it isn't particularly useful > > at the stage where it just means PIC rather than actual shared libraries). > > How does the following look: > > gcc/ > * doc/install.texi (--enable-shared): Add note contrasting it > with... > (--enable-host-shared): ...new option. Seems reasonable to me.
On Fri, 2013-10-11 at 20:45 +0000, Joseph S. Myers wrote: > On Fri, 11 Oct 2013, David Malcolm wrote: > > > On Thu, 2013-10-10 at 01:05 +0000, Joseph S. Myers wrote: > > > On Wed, 9 Oct 2013, David Malcolm wrote: > > > > > > > This patch adds an "--enable-host-shared" option throughout the various > > > > configure/Make machinery for host code, adding "-fPIC" where appropriate > > > > when enabled. > > > > > > Please document this in install.texi (even if it isn't particularly useful > > > at the stage where it just means PIC rather than actual shared libraries). > > > > How does the following look: > > > > gcc/ > > * doc/install.texi (--enable-shared): Add note contrasting it > > with... > > (--enable-host-shared): ...new option. > > Seems reasonable to me. Thanks. Presumably the initially posted configure/make patch still needs review, right? Dave
On Fri, 11 Oct 2013, David Malcolm wrote: > Thanks. Presumably the initially posted configure/make patch still > needs review, right? Yes (by a build system maintainer, probably).
On 10/11/13 14:49, David Malcolm wrote: > On Fri, 2013-10-11 at 20:45 +0000, Joseph S. Myers wrote: >> On Fri, 11 Oct 2013, David Malcolm wrote: >> >>> On Thu, 2013-10-10 at 01:05 +0000, Joseph S. Myers wrote: >>>> On Wed, 9 Oct 2013, David Malcolm wrote: >>>> >>>>> This patch adds an "--enable-host-shared" option throughout the various >>>>> configure/Make machinery for host code, adding "-fPIC" where appropriate >>>>> when enabled. >>>> >>>> Please document this in install.texi (even if it isn't particularly useful >>>> at the stage where it just means PIC rather than actual shared libraries). >>> >>> How does the following look: >>> >>> gcc/ >>> * doc/install.texi (--enable-shared): Add note contrasting it >>> with... >>> (--enable-host-shared): ...new option. >> >> Seems reasonable to me. > > Thanks. Presumably the initially posted configure/make patch still > needs review, right? Yes. I'm looking at it now. jeff
commit 23bf2a4389817352bca1bdcbe3d7971b4f607e4b
Author: David Malcolm <dmalcolm@redhat.com>
Date: Fri Oct 11 16:22:45 2013 -0400
Document --enable-host-shared
gcc/
* doc/install.texi (--enable-shared): Add note contrasting it
with...
(--enable-host-shared): New option.
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 7be8e5a..5cb4d3c 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -925,6 +925,19 @@ Use @option{--disable-shared} to build only static libraries. Note that
@option{--disable-shared} does not accept a list of package names as
argument, only @option{--enable-shared} does.
+Contrast with @option{--enable-host-shared}, which affects @emph{host}
+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.
+
+Currently this option is only of use to people developing GCC itself.
+
+Contrast with @option{--enable-shared}, which affects @emph{target}
+libraries.
+
@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