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[PATCH] Fix PR other/11466
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: gcc-patches at gcc dot gnu dot org
- Date: Tue, 15 Jul 2003 12:16:38 +0200
- Subject: [PATCH] Fix PR other/11466
Hi,
This documents the relations between -mlittle-endian and the SPARC port. It
also backports Florian's patch.
Tested with 'make doc'. OK for mainline and 3.3 branch?
2003-07-15 Eric Botcazou <ebotcazou@libertysurf.fr>
PR other/11466
* doc/invoke.texi (SPARC Options): Document "-mlittle-endian"
and its restrictions for the SPARC64 port.
Backport from mainline:
2003-06-13 Florian Weimer <fw@deneb.enyo.de>
* doc/invoke.texi (SPARC Options): Document "-mimpure-text".
--
Eric Botcazou
Index: doc/invoke.texi
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doc/invoke.texi,v
retrieving revision 1.209.2.40
diff -u -r1.209.2.40 invoke.texi
--- doc/invoke.texi 10 Jul 2003 17:05:16 -0000 1.209.2.40
+++ doc/invoke.texi 15 Jul 2003 09:58:55 -0000
@@ -343,7 +343,7 @@
-mapp-regs -mbroken-saverestore -mcypress @gol
-mfaster-structs -mflat @gol
-mfpu -mhard-float -mhard-quad-float @gol
--mimpure-text -mlive-g0 -mno-app-regs @gol
+-mimpure-text -mlittle-endian -mlive-g0 -mno-app-regs @gol
-mno-faster-structs -mno-flat -mno-fpu @gol
-mno-impure-text -mno-stack-bias -mno-unaligned-doubles @gol
-msoft-float -msoft-quad-float -msparclite -mstack-bias @gol
@@ -5780,6 +5780,22 @@
acknowledges that their resulting code will not be directly in line with
the rules of the ABI@.
+@item -mimpure-text
+@opindex mimpure-text
+@option{-mimpure-text}, used in addition to @option{-shared}, tells
+the compiler to not pass @option{-z text} to the linker when linking a
+shared object. Using this option, you can link position-dependent
+code into a shared object.
+
+@option{-mimpure-text} suppresses the ``relocations remain against
+allocatable but non-writable sections'' linker error message.
+However, the necessary relocations will trigger copy-on-write, and the
+shared object is not actually shared across processes. Instead of
+using @option{-mimpure-text}, you should compile all source code with
+@option{-fpic} or @option{-fPIC}.
+
+This option is only available on SunOS and Solaris.
+
@item -mv8
@itemx -msparclite
@opindex mv8
@@ -5888,7 +5904,8 @@
@table @gcctabopt
@item -mlittle-endian
@opindex mlittle-endian
-Generate code for a processor running in little-endian mode.
+Generate code for a processor running in little-endian mode. It is only
+available for a few configurations and most notably not on Solaris.
@item -m32
@itemx -m64