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
This commit is contained in:
John David Anglin
John David Anglin
parent
43451169f8
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@ -1,3 +1,19 @@
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2003-04-11 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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* doc/install.texi (hppa): Update links for HP-UX patches. Revise
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notes on linker selection and configuration for 64-bit HP-UX port.
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* doc/invoke.texi (hppa): Remove hppa text from description for
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-ffunction-sections and -fdata-sections. Document -static, -nolibdld
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and -threads options.
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* pa-hpux10.h (LIB_SPEC): Add link options to resolve dependency of
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libc.a on libdld.sl when -static is specified and -nolibdld is not
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specified.
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* pa64-hpux.h (LIB_SPEC): Likewise.
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* pa-hpux11.h (LIB_SPEC): Likewise.
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(LINK_SPEC): Add __gcc_plt_call as an undefined symbol when -shared
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is not specified.
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2003-04-11 Zack Weinberg <zack@codesourcery.com>
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* config/darwin-c.c (darwin_pragma_unused): Use lookup_name,
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@ -82,10 +82,12 @@ Boston, MA 02111-1307, USA. */
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#define LIB_SPEC \
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"%{!shared:\
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%{!p:%{!pg:\
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%{!threads:-lc}\
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%{!threads:-lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
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%{threads:-lcma -lc_r}}}\
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%{p: -L/lib/libp/ -lc}\
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%{pg: -L/lib/libp/ -lc}}"
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%{p: -L/lib/libp/ -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
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%{pg: -L/lib/libp/ -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}"
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#undef THREAD_MODEL_SPEC
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#define THREAD_MODEL_SPEC "%{!threads:single}%{threads:dce}"
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@ -72,10 +72,13 @@ Boston, MA 02111-1307, USA. */
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#undef LINK_SPEC
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#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & 1)
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#define LINK_SPEC \
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"%{!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}"
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"%{!mpa-risc-1-0:%{!shared:-L/lib/pa1.1 -L/usr/lib/pa1.1 }} -z\
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%{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
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%{static:-a archive} %{shared:-b}"
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#else
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#define LINK_SPEC \
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"-z %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:-b}"
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"-z %{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
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%{static:-a archive} %{shared:-b}"
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#endif
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/* Like the default, except no -lg. */
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@ -83,10 +86,12 @@ Boston, MA 02111-1307, USA. */
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#define LIB_SPEC \
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"%{!shared:\
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%{!p:%{!pg:\
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%{!threads:-lc}\
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%{!threads:-lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
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%{threads:-lcma -lc_r}}}\
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%{p: -L/lib/libp/ -lc}\
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%{pg: -L/lib/libp/ -lc}}"
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%{p: -L/lib/libp/ -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
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%{pg: -L/lib/libp/ -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}"
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/* Under hpux11, the normal location of the `ld' and `as' programs is the
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/usr/ccs/bin directory. */
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@ -47,10 +47,12 @@ Boston, MA 02111-1307, USA. */
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#undef LIB_SPEC
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#define LIB_SPEC \
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"%{!shared:\
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%{!p:\
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%{!pg: %{!threads:-lc} %{threads:-lcma -lc_r}}\
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%{pg: -L/usr/lib/pa20_64/libp/ -lgprof -lc}}\
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%{p: -L/usr/lib/pa20_64/libp/ -lprof -lc}} /usr/lib/pa20_64/milli.a"
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%{!p:%{!pg: -lc %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
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%{pg: -L/usr/lib/pa20_64/libp/ -lgprof -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}\
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%{p: -L/usr/lib/pa20_64/libp/ -lprof -lc\
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%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
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/usr/lib/pa20_64/milli.a"
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/* Under hpux11, the normal location of the `ld' and `as' programs is the
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/usr/ccs/bin directory. */
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@ -2177,15 +2177,15 @@ charge:
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@itemize @bullet
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@item
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@html
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<a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and
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<a href="http://us.itrc.hp.com/service/home/home.do">US, Canada, Asia-Pacific, and
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Latin-America</a>
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@end html
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@ifnothtml
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@uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and
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Latin-America
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@uref{http://us.itrc.hp.com/service/home/home.do,,} US, Canada, Asia-Pacific,
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and Latin-America.
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@end ifnothtml
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@item
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@uref{http://europe-support.external.hp.com,,Europe}
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@uref{http://europe.itrc.hp.com/service/home/home.do,,} Europe.
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@end itemize
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The HP assembler on these systems is much better than the hpux9 assembler,
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@ -2211,6 +2211,13 @@ set your @env{PATH} or define @env{CC} so that configure finds an appropriate
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compiler for the initial bootstrap. Different prefixes must be used if
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both ports are to be installed on the same system.
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It is best to explicitly configure the @samp{hppa64-hp-hpux11*} target
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with the @option{--with-ld=@dots{}} option. We support both the HP
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and GNU linkers for this target. The two linkers require different
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link commands. Thus, it's not possible to switch linkers during a
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GCC build. This has been been reported to occur in a unified build
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of binutils and GCC.
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GCC 2.95.x is not supported under HP-UX 11 and cannot be used to
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compile GCC 3.0 and up. Refer to @uref{binaries.html,,binaries} for
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information about obtaining precompiled GCC binaries for HP-UX.
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@ -2244,10 +2251,29 @@ by the HP linker. So, again a recent linker patch is recommended.
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The HP assembler has many limitations and is not recommended for either
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the 32 or 64-bit ports. For example, it does not support weak symbols
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or alias definitions. As a result, explicit template instantiations
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are required when using C++. You also can't generate debugging information
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when using the HP assembler. Either the HP or GNU linker can be used
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with the 64-bit port but it may be necessary to use the GNU linker
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when dwarf2 exception support is implemented.
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are required when using C++. This will make it difficult if not
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impossible to build many C++ applications. You also can't generate
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debugging information when using the HP assembler with GCC.
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There are a number of issues to consider in selecting which linker to
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use with the 64-bit port. The GNU 64-bit linker can only create dynamic
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binaries. The @option{-static} option causes linking with archive
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libraries but doesn't produce a truly static binary. Dynamic binaries
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still require final binding by the dynamic loader to resolve a set of
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dynamic-loader-defined symbols. The default behavior of the HP linker
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is the same as the GNU linker. However, it can generate true 64-bit
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static binaries using the @option{+compat} option.
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The HP 64-bit linker doesn't support linkonce semantics. As a
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result, C++ programs have many more sections than they should.
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The GNU 64-bit linker has some issues with shared library support
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and exceptions. As a result, we only support libgcc in archive
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format. For similar reasons, dwarf2 unwind and exception support
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are disabled. The GNU linker also has problems creating binaries
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with @option{-static}. It doesn't provide stubs for internal
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calls to global functions in shared libraries, so these calls
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can't be overloaded.
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There are several possible approaches to building the distribution.
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Binutils can be built first using the HP tools. Then, the GCC
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@ -504,7 +504,8 @@ in the following sections.
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-mno-portable-runtime -mno-soft-float @gol
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-mno-space-regs -msoft-float -mpa-risc-1-0 @gol
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-mpa-risc-1-1 -mpa-risc-2-0 -mportable-runtime @gol
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-mschedule=@var{cpu-type} -mspace-regs -msio -mwsio}
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-mschedule=@var{cpu-type} -mspace-regs -msio -mwsio @gol
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-nolibdld -static -threads}
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@emph{Intel 960 Options}
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@gccoptlist{-m@var{cpu-type} -masm-compat -mclean-linkage @gol
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@ -4367,10 +4368,10 @@ function or the name of the data item determines the section's name
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in the output file.
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Use these options on systems where the linker can perform optimizations
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to improve locality of reference in the instruction space. HPPA
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processors running HP-UX and SPARC processors running Solaris 2 have
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linkers with such optimizations. Other systems using the ELF object format
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as well as AIX may have these optimizations in the future.
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to improve locality of reference in the instruction space. Most systems
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using the ELF object format and SPARC processors running Solaris 2 have
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linkers with such optimizations. AIX may have these optimizations in
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the future.
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Only use these options when there are significant benefits from doing
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so. When you specify these options, the assembler and linker will
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@ -8576,6 +8577,30 @@ symbol-difference or pc-relative calls should be relatively small.
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However, an indirect call is used on 32-bit ELF systems in pic code
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and it is quite long.
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@item -nolibdld
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@opindex nolibdld
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Suppress the generation of link options to search libdld.sl when the
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@option{-static} option is specified on HP-UX 10 and later.
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@item -static
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@opindex static
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The HP-UX implementation of setlocale in libc has a dependency on
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libdld.sl. There isn't an archive version of libdld.sl. Thus,
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when the @option{-static} option is specified, special link options
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are needed to resolve this dependency.
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On HP-UX 10 and later, the GCC driver adds the necessary options to
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link with libdld.sl when the @option{-static} option is specified.
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This causes the resulting binary to be dynamic. On the 64-bit port,
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the linkers generate dynamic binaries by default in any case. The
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@option{-nolibdld} option can be used to prevent the GCC driver from
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adding these link options.
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@item -threads
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@opindex threads
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Add support for multithreading with the @dfn{dce thread} library
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under HP-UX. This option sets flags for both the preprocessor and
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linker.
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@end table
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@node Intel 960 Options
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