From 3cf50fcdac65b4174270915d5024fced130b7133 Mon Sep 17 00:00:00 2001 From: Maya Rashish Date: Mon, 26 Nov 2018 21:21:16 +0000 Subject: [PATCH] re PR preprocessor/58397 (Please add host_hooks for NetBSD to make precompiled headers work) PR target/58397 * config.host (*-*-netbsd*): Use x-netbsd and host-netbsd.o. * config/x-netbsd: New file. * config/host-netbsd: New file. From-SVN: r266484 --- gcc/ChangeLog | 7 ++++ gcc/config.host | 4 ++ gcc/config/host-netbsd.c | 85 ++++++++++++++++++++++++++++++++++++++++ gcc/config/x-netbsd | 4 ++ 4 files changed, 100 insertions(+) create mode 100644 gcc/config/host-netbsd.c create mode 100644 gcc/config/x-netbsd diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c2f1c4e0dc0..a4d60791c28 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-11-26 Maya Rashish + + PR target/58397 + * config.host (*-*-netbsd*): Use x-netbsd and host-netbsd.o. + * config/x-netbsd: New file. + * config/host-netbsd: New file. + 2018-11-26 Jozef Lawrynowicz * doc/sourcebuild.texi: Document check_effective_target_size20plus. diff --git a/gcc/config.host b/gcc/config.host index c65569da2e9..970d4d549f2 100644 --- a/gcc/config.host +++ b/gcc/config.host @@ -282,6 +282,10 @@ case ${host} in out_host_hook_obj=host-openbsd.o host_xmake_file="${host_xmake_file} x-openbsd" ;; + *-*-netbsd*) + out_host_hook_obj=host-netbsd.o + host_xmake_file="${host_xmake_file} x-netbsd" + ;; ia64-*-hpux*) use_long_long_for_widest_fast_int=yes out_host_hook_obj=host-hpux.o diff --git a/gcc/config/host-netbsd.c b/gcc/config/host-netbsd.c new file mode 100644 index 00000000000..c8fe47d0d50 --- /dev/null +++ b/gcc/config/host-netbsd.c @@ -0,0 +1,85 @@ +/* NetBSD host-specific hook definitions. + Copyright (C) 2004-2018 Free Software Foundation, Inc. + + This file is part of GCC. + + GCC is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3, or (at your + option) any later version. + + GCC is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with GCC; see the file COPYING3. If not see + . */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "hosthooks.h" +#include "hosthooks-def.h" + + +#undef HOST_HOOKS_GT_PCH_GET_ADDRESS +#define HOST_HOOKS_GT_PCH_GET_ADDRESS netbsd_gt_pch_get_address +#undef HOST_HOOKS_GT_PCH_USE_ADDRESS +#define HOST_HOOKS_GT_PCH_USE_ADDRESS netbsd_gt_pch_use_address + +/* For various ports, try to guess a fixed spot in the vm space + that's probably free. */ +#if defined(__sparc64__) +# define TRY_EMPTY_VM_SPACE 0x40000000000 +#elif defined(_LP64) +# define TRY_EMPTY_VM_SPACE 0x400000000000 +#elif defined(__mips__) || defined(__vax__) || defined (__arm__) +# define TRY_EMPTY_VM_SPACE 0x60000000 +#else +# define TRY_EMPTY_VM_SPACE 0xb0000000 +#endif + +/* Determine a location where we might be able to reliably allocate + SIZE bytes. FD is the PCH file, though we should return with the + file unmapped. */ + +static void * +netbsd_gt_pch_get_address (size_t size, int fd) +{ + void *addr; + + addr = mmap ((void *) TRY_EMPTY_VM_SPACE, size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_FIXED, fd, 0); + + /* If we failed the map, that means there's *no* free space. */ + if (addr == (void *) MAP_FAILED) + return NULL; + /* Unmap the area before returning. */ + munmap (addr, size); + + return addr; +} + +/* Map SIZE bytes of FD+OFFSET at BASE. Return 1 if we succeeded at + mapping the data at BASE, -1 if we couldn't. */ + +static int +netbsd_gt_pch_use_address (void *base, size_t size, int fd, size_t offset) +{ + void *addr; + + /* We're called with size == 0 if we're not planning to load a PCH + file at all. This allows the hook to free any static space that + we might have allocated at link time. */ + if (size == 0) + return -1; + + addr = mmap (base, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, fd, offset); + + return addr == base ? 1 : -1; +} + + +const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER; diff --git a/gcc/config/x-netbsd b/gcc/config/x-netbsd new file mode 100644 index 00000000000..beef7451264 --- /dev/null +++ b/gcc/config/x-netbsd @@ -0,0 +1,4 @@ +host-netbsd.o : $(srcdir)/config/host-netbsd.c $(CONFIG_H) $(SYSTEM_H) \ + coretypes.h hosthooks.h hosthooks-def.h $(HOOKS_H) + $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \ + $(srcdir)/config/host-netbsd.c -- 2.30.2