-By adding MKGCC=yes and MKGCCCMDS=yes on the make commandline it is now possible to compile and install GCC on the system. Before doing this, if you are not using the build.sh script, you will need to call the fetch scripts in order to retrieve the sources of GCC and its dependencies. -Reduce difference with NetBSD share/mk Move Minix-specific parameters from bsd.gcc.mk to bsd.own.mk, which is anyway patched, so that bsd.gcc.mk is now aligned on the NetBSD version. -Clean libraries dependencies, compiles stdc++ only if gcc is also compiled (it is part of the gcc sources) -Correct minix.h header sequence, cleanup spec headers. -Fix cross-compilation from a 32bit host targeting MINIX/arm Change-Id: I1b234af18eed4ab5675188244e931b2a2b7bd943
163 lines
6 KiB
C
163 lines
6 KiB
C
/* Base configuration file for all MINIX targets.
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Copyright (C) 1999, 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
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Adapted for MINIX by Lionel Sambuc <lionel@minix3.org>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* MINIX defines
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* Default, architecture independent values for MINIX
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*
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* For this to work properly, the order in the tm_file variable has
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* to be the following:
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* minix-spec.h $arch/minix.h minix.h
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*
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* minix-spec.h : specifies default arch-independent values
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* $arch/minix.h: redefines as needed default minix values
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* minix.h : maps GCC defines to the minix defines.
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*
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* WARNING:
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* When changing any default, also check in the arch headers
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* if the default is redefined and update them as required.
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*/
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/* In case we need to know. */
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#define USING_CONFIG_MINIX_SPEC 1
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/* This defines which switch letters take arguments. On FreeBSD, most of
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the normal cases (defined in gcc.c) apply, and we also have -h* and
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-z* options (for the linker) (coming from SVR4).
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We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */
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#define MINIX_SWITCH_TAKES_ARG(CHAR) \
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(DEFAULT_SWITCH_TAKES_ARG (CHAR) \
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|| (CHAR) == 'h' \
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|| (CHAR) == 'z' /* ignored by ld */ \
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|| (CHAR) == 'R')
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/* This defines which multi-letter switches take arguments. */
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#define MINIX_WORD_SWITCH_TAKES_ARG(STR) \
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(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
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|| !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link") \
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|| !strcmp ((STR), "soname") || !strcmp ((STR), "defsym") \
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|| !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
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#define MINIX_TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define ("__minix"); \
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builtin_define ("__minix__"); \
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builtin_define ("__unix__"); \
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builtin_assert ("system=bsd"); \
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builtin_assert ("system=unix"); \
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builtin_assert ("system=minix"); \
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MINIX_TARGET_CPU_CPP_BUILTINS(); \
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} \
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while (0)
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/* Define the default MINIX-specific per-CPU hook code. */
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#define MINIX_TARGET_CPU_CPP_BUILTINS() do {} while (0)
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/* Provide a CPP_SPEC appropriate for MINIX. We just deal with the GCC
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option `-posix'. */
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#define MINIX_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
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#define MINIX_CC1_SPEC ""
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/* Pass -cxx-isystem to cc1plus. */
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#define MINIX_CC1PLUS_SPEC "%{cxx-isystem}"
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#define MINIX_SUBTARGET_CPP_SPEC ""
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#define MINIX_SUBTARGET_EXTRA_ASM_SPEC ""
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#define MINIX_SUBTARGET_ASM_FLOAT_SPEC ""
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#define MINIX_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
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/* Under MINIX, just like on NetBSD, the normal location of the various
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* *crt*.o files is the /usr/lib directory. */
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#define MINIX_STANDARD_STARTFILE_PREFIX "/usr/lib/"
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/* suppress -lgcc - don't include %G (-lgcc) in the libraries */
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#define MINIX_LINK_GCC_C_SEQUENCE_SPEC "%L"
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/* Provide a STARTFILE_SPEC appropriate for MINIX. Here we add
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the magical crtbegin.o file (see crtstuff.c) which provides part
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of the support for getting C++ file-scope static object constructed
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before entering `main'. */
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#define MINIX_STARTFILE_SPEC \
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"%{!shared: \
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%{pg:gcrt0%O%s} \
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%{!pg: \
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%{p:gcrt0%O%s} \
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%{!p:%{profile:gcrt0%O%s} \
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%{!profile:crt0%O%s}}}} \
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%:if-exists(crti%O%s) \
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%{static:%:if-exists-else(crtbeginT%O%s crtbegin%O%s)} \
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%{!static: \
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%{!shared: \
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%{!pie:crtbegin%O%s} \
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%{pie:crtbeginS%O%s}} \
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%{shared:crtbeginS%O%s}}"
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/* Provide an ENDFILE_SPEC appropriate for NetBSD ELF. Here we
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add crtend.o, which provides part of the support for getting
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C++ file-scope static objects deconstructed after exiting "main". */
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#define MINIX_ENDFILE_SPEC \
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"%{!shared: \
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%{!pie:crtend%O%s} \
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%{pie:crtendS%O%s}} \
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%{shared:crtendS%O%s} \
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%:if-exists(crtn%O%s)"
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/* Provide a LIB_SPEC appropriate for MINIX. Just select the appropriate
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libc, depending on whether we're doing profiling or need threads support.
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(similar to the default, except no -lg, and no -p). */
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#define MINIX_LIB_SPEC " \
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%{pthread: %eThe -pthread option is only supported on MINIX when gcc \
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is built with the --enable-threads configure-time option.} \
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%{shared:-lc} \
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%{!shared: \
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%{!symbolic: \
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%{!p: \
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%{!pg:-lc}} \
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%{p:-lc_p} \
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%{pg:-lc_p}}}"
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/* Provide a LINK_SPEC appropriate for MINIX. Here we provide support
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for the special GCC options -static and -shared, which allow us to
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link things in one of these three modes by applying the appropriate
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combinations of options at link-time. We like to support here for
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as many of the other GNU linker options as possible. But I don't
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have the time to search for those flags. I am sure how to add
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support for -soname shared_object_name. H.J.
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I took out %{v:%{!V:-V}}. It is too much :-(. They can use
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-Wl,-V.
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When the -shared link option is used a final link is not being
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done. */
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#define MINIX_LINK_SPEC " \
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-X \
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%{p:%nconsider using `-pg' instead of `-p' with gprof(1) } \
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%{assert*} %{R*} %{rpath*} \
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%{shared:-Bshareable %{h*} %{soname*}} \
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%{symbolic:-Bsymbolic} \
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%{!shared: \
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-dc -dp \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker %(minix_dynamic_linker) }} \
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%{static:-Bstatic}}"
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