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Commit f401d0f5 by John David Anglin Committed by John David Anglin
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install.texi (hppa): Update links for HP-UX patches. 

	* doc/install.texi (hppa): Update links for HP-UX patches.  Revise
	notes on linker selection and configuration for 64-bit HP-UX port.
	* doc/invoke.texi (hppa): Remove hppa text from description for
	-ffunction-sections and -fdata-sections.  Document -static, -nolibdld
	and -threads options.
	* pa-hpux10.h (LIB_SPEC): Add link options to resolve dependency of
	libc.a on libdld.sl when -static is specified and -nolibdld is not
	specified.
	* pa64-hpux.h (LIB_SPEC): Likewise.
	* pa-hpux11.h (LIB_SPEC): Likewise.
	(LINK_SPEC): Add __gcc_plt_call as an undefined symbol when -shared
	is not specified.

From-SVN: r65471
parent 43451169
Showing with 101 additions and 25 deletions
gcc/ChangeLog
2003-04-11 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* doc/install.texi (hppa): Update links for HP-UX patches. Revise
notes on linker selection and configuration for 64-bit HP-UX port.
* doc/invoke.texi (hppa): Remove hppa text from description for
-ffunction-sections and -fdata-sections. Document -static, -nolibdld
and -threads options.
* pa-hpux10.h (LIB_SPEC): Add link options to resolve dependency of
libc.a on libdld.sl when -static is specified and -nolibdld is not
specified.
* pa64-hpux.h (LIB_SPEC): Likewise.
* pa-hpux11.h (LIB_SPEC): Likewise.
(LINK_SPEC): Add __gcc_plt_call as an undefined symbol when -shared
is not specified.
2003-04-11 Zack Weinberg <zack@codesourcery.com>
* config/darwin-c.c (darwin_pragma_unused): Use lookup_name,
......
gcc/config/pa/pa-hpux10.h
......@@ -82,10 +82,12 @@ Boston, MA 02111-1307, USA. */
#define LIB_SPEC \
"%{!shared:\
%{!p:%{!pg:\
%{!threads:-lc}\
%{!threads:-lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
%{threads:-lcma -lc_r}}}\
%{p: -L/lib/libp/ -lc}\
%{pg: -L/lib/libp/ -lc}}"
%{p: -L/lib/libp/ -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
%{pg: -L/lib/libp/ -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}"
#undef THREAD_MODEL_SPEC
#define THREAD_MODEL_SPEC "%{!threads:single}%{threads:dce}"
......
gcc/config/pa/pa-hpux11.h
......@@ -72,10 +72,13 @@ Boston, MA 02111-1307, USA. */
#undef LINK_SPEC
#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & 1)
#define LINK_SPEC \
"%{!mpa-risc-1-0:%{!shared:-L/lib/pa1.1 -L/usr/lib/pa1.1 }} -z %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:-b}"
"%{!mpa-risc-1-0:%{!shared:-L/lib/pa1.1 -L/usr/lib/pa1.1 }} -z\
%{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
%{static:-a archive} %{shared:-b}"
#else
#define LINK_SPEC \
"-z %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:-b}"
"-z %{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
%{static:-a archive} %{shared:-b}"
#endif
/* Like the default, except no -lg. */
......@@ -83,10 +86,12 @@ Boston, MA 02111-1307, USA. */
#define LIB_SPEC \
"%{!shared:\
%{!p:%{!pg:\
%{!threads:-lc}\
%{!threads:-lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
%{threads:-lcma -lc_r}}}\
%{p: -L/lib/libp/ -lc}\
%{pg: -L/lib/libp/ -lc}}"
%{p: -L/lib/libp/ -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
%{pg: -L/lib/libp/ -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}"
/* Under hpux11, the normal location of the `ld' and `as' programs is the
/usr/ccs/bin directory. */
......
gcc/config/pa/pa64-hpux.h
......@@ -47,10 +47,12 @@ Boston, MA 02111-1307, USA. */
#undef LIB_SPEC
#define LIB_SPEC \
"%{!shared:\
%{!p:\
%{!pg: %{!threads:-lc} %{threads:-lcma -lc_r}}\
%{pg: -L/usr/lib/pa20_64/libp/ -lgprof -lc}}\
%{p: -L/usr/lib/pa20_64/libp/ -lprof -lc}} /usr/lib/pa20_64/milli.a"
%{!p:%{!pg: -lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
%{pg: -L/usr/lib/pa20_64/libp/ -lgprof -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
%{p: -L/usr/lib/pa20_64/libp/ -lprof -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
/usr/lib/pa20_64/milli.a"
/* Under hpux11, the normal location of the `ld' and `as' programs is the
/usr/ccs/bin directory. */
......
gcc/doc/install.texi
......@@ -2177,15 +2177,15 @@ charge:
@itemize @bullet
@item
@html
<a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and
<a href="http://us.itrc.hp.com/service/home/home.do">US, Canada, Asia-Pacific, and
Latin-America</a>
@end html
@ifnothtml
@uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and
Latin-America
@uref{http://us.itrc.hp.com/service/home/home.do,,} US, Canada, Asia-Pacific,
and Latin-America.
@end ifnothtml
@item
@uref{http://europe-support.external.hp.com,,Europe}
@uref{http://europe.itrc.hp.com/service/home/home.do,,} Europe.
@end itemize
The HP assembler on these systems is much better than the hpux9 assembler,
......@@ -2211,6 +2211,13 @@ set your @env{PATH} or define @env{CC} so that configure finds an appropriate
compiler for the initial bootstrap. Different prefixes must be used if
both ports are to be installed on the same system.
It is best to explicitly configure the @samp{hppa64-hp-hpux11*} target
with the @option{--with-ld=@dots{}} option. We support both the HP
and GNU linkers for this target. The two linkers require different
link commands. Thus, it's not possible to switch linkers during a
GCC build. This has been been reported to occur in a unified build
of binutils and GCC.
GCC 2.95.x is not supported under HP-UX 11 and cannot be used to
compile GCC 3.0 and up. Refer to @uref{binaries.html,,binaries} for
information about obtaining precompiled GCC binaries for HP-UX.
......@@ -2244,10 +2251,29 @@ by the HP linker. So, again a recent linker patch is recommended.
The HP assembler has many limitations and is not recommended for either
the 32 or 64-bit ports. For example, it does not support weak symbols
or alias definitions. As a result, explicit template instantiations
are required when using C++. You also can't generate debugging information
when using the HP assembler. Either the HP or GNU linker can be used
with the 64-bit port but it may be necessary to use the GNU linker
when dwarf2 exception support is implemented.
are required when using C++. This will make it difficult if not
impossible to build many C++ applications. You also can't generate
debugging information when using the HP assembler with GCC.
There are a number of issues to consider in selecting which linker to
use with the 64-bit port. The GNU 64-bit linker can only create dynamic
binaries. The @option{-static} option causes linking with archive
libraries but doesn't produce a truly static binary. Dynamic binaries
still require final binding by the dynamic loader to resolve a set of
dynamic-loader-defined symbols. The default behavior of the HP linker
is the same as the GNU linker. However, it can generate true 64-bit
static binaries using the @option{+compat} option.
The HP 64-bit linker doesn't support linkonce semantics. As a
result, C++ programs have many more sections than they should.
The GNU 64-bit linker has some issues with shared library support
and exceptions. As a result, we only support libgcc in archive
format. For similar reasons, dwarf2 unwind and exception support
are disabled. The GNU linker also has problems creating binaries
with @option{-static}. It doesn't provide stubs for internal
calls to global functions in shared libraries, so these calls
can't be overloaded.
There are several possible approaches to building the distribution.
Binutils can be built first using the HP tools. Then, the GCC
......
gcc/doc/invoke.texi
......@@ -504,7 +504,8 @@ in the following sections.
-mno-portable-runtime -mno-soft-float @gol
-mno-space-regs -msoft-float -mpa-risc-1-0 @gol
-mpa-risc-1-1 -mpa-risc-2-0 -mportable-runtime @gol
-mschedule=@var{cpu-type} -mspace-regs -msio -mwsio}
-mschedule=@var{cpu-type} -mspace-regs -msio -mwsio @gol
-nolibdld -static -threads}
@emph{Intel 960 Options}
@gccoptlist{-m@var{cpu-type} -masm-compat -mclean-linkage @gol
......@@ -4367,10 +4368,10 @@ function or the name of the data item determines the section's name
in the output file.
Use these options on systems where the linker can perform optimizations
to improve locality of reference in the instruction space. HPPA
processors running HP-UX and SPARC processors running Solaris 2 have
linkers with such optimizations. Other systems using the ELF object format
as well as AIX may have these optimizations in the future.
to improve locality of reference in the instruction space. Most systems
using the ELF object format and SPARC processors running Solaris 2 have
linkers with such optimizations. AIX may have these optimizations in
the future.
Only use these options when there are significant benefits from doing
so. When you specify these options, the assembler and linker will
......@@ -8576,6 +8577,30 @@ symbol-difference or pc-relative calls should be relatively small.
However, an indirect call is used on 32-bit ELF systems in pic code
and it is quite long.
@item -nolibdld
@opindex nolibdld
Suppress the generation of link options to search libdld.sl when the
@option{-static} option is specified on HP-UX 10 and later.
@item -static
@opindex static
The HP-UX implementation of setlocale in libc has a dependency on
libdld.sl. There isn't an archive version of libdld.sl. Thus,
when the @option{-static} option is specified, special link options
are needed to resolve this dependency.
On HP-UX 10 and later, the GCC driver adds the necessary options to
link with libdld.sl when the @option{-static} option is specified.
This causes the resulting binary to be dynamic. On the 64-bit port,
the linkers generate dynamic binaries by default in any case. The
@option{-nolibdld} option can be used to prevent the GCC driver from
adding these link options.
@item -threads
@opindex threads
Add support for multithreading with the @dfn{dce thread} library
under HP-UX. This option sets flags for both the preprocessor and
linker.
@end table
@node Intel 960 Options
......
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