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2021-02-16exec: Use cpu_untagged_addr in g2h; split out g2h_untaggedRichard Henderson1-11/+12
Use g2h_untagged in contexts that have no cpu, e.g. the binary loaders that operate before the primary cpu is created. As a colollary, target_mmap and friends must use untagged addresses, since they are used by the loaders. Use g2h_untagged on values returned from target_mmap, as the kernel never applies a tag itself. Use g2h_untagged on all pc values. The only current user of tags, aarch64, removes tags from code addresses upon branch, so "pc" is always untagged. Use g2h with the cpu context on hand wherever possible. Use g2h_untagged in lock_user, which will be updated soon. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210212184902.1251044-13-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-01bsd-user: include "exec/exec-all.h" which provides mmap_lock/unlock"Paolo Bonzini1-0/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-21bsd-user/mmap.c: Move __thread attribute to right placePeter Maydell1-1/+1
Avoid a compiler warning on OpenBSD: bsd-user/mmap.c:28:1: warning: '__thread' is not at beginning of declaration [-Wold-style-declaration] by moving the __thread attribute to its proper place. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 1500395194-21455-2-git-send-email-peter.maydell@linaro.org
2017-03-28bsd-user: align use of mmap_lock to that of linux-userAlex Bennée1-12/+1
The introduction of stricter mmap_lock checking in translate-all broke the BSD user build. The working mmap_lock functions were hidden behind CONFIG_USE_NPTL which is never defined. This patch brings them inline with linux-user. Despite the disapearence of the comment "We aren't threadsafe to start with..." this doesn't make bsd-user so. It will still need the rest of the fixes that have been done in linux-user ported over. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-20configure: remove CygwinPaolo Bonzini1-5/+0
The Cygwin target is really compiling for native Win32 with -mno-cygwin. Except, GCC 4.7.0 has finally removed the long deprecated -mno-cygwin option, and that happened about five years ago. Let it rest in peace. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Message-id: 20170317160811.28370-1-pbonzini@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-31translate-all: add DEBUG_LOCKING assertsAlex Bennée1-0/+5
This adds asserts to check the locking on the various translation engines structures. There are two sets of structures that are protected by locks. The first the l1map and PageDesc structures used to track which translation blocks are associated with which physical addresses. In user-mode this is covered by the mmap_lock. The second case are TB context related structures which are protected by tb_lock which is also user-mode only. Currently the asserts do nothing in SoftMMU mode but this will change for MTTCG. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20161027151030.20863-4-alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16os-posix: include sys/mman.hPaolo Bonzini1-1/+0
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check is bogus without a previous inclusion of sys/mman.h. Include it in sysemu/os-posix.h and remove it from everywhere else. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-04bsd-user: Clean up includesPeter Maydell1-6/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-4-git-send-email-peter.maydell@linaro.org
2014-06-11bsd-user/mmap.c: Don't try to override g_malloc/g_freePeter Maydell1-60/+0
Trying to override the implementations of g_malloc and g_free is a really bad idea -- it means statically linked builds fail to link (because of the multiple definitions provided by this file and by glib), and non-statically linked builds segfault as soon as they try to do anything more complicated than printing the usage message. Remove these overridden versions and just use the glib ones. This is sufficient that bsd-user can run basic x86-64 binaries on OpenBSD again; FreeBSD and NetBSD seem to have further issues. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Sean Bruno <sbruno@freebsd.org> Reviewed-by: Ed Maste <emaste@freebsd.org>
2013-01-26bsd-user: avoid conflict with qemu_vmallocBlue Swirl1-2/+2
Rename qemu_vmalloc() to bsd_vmalloc(), adjust the only user. Remove #ifdeffery in oslib-posix.c. Tested-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori1-8/+8
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-30Fix bsd-user qemu_vmalloc() host page protection codeJuergen Lock1-3/+2
Just do the same as linux-user does. Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-31bsd/darwin-user: mmap_frag() users only check for -1 errorBlue Swirl1-1/+1
See also ee636500d6eab44b83f09cb730b67226b70423b1. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-27rename USE_NPTL to CONFIG_USE_NPTLJuan Quintela1-1/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl1-3/+1
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-01-28Fix qemu_malloc.malc1-0/+2
make {linux,bsd}-user qemu_realloc handle ptr == NULL correctly. spotted by malc. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6466 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-24Fix bsd-user compile like r6412blueswir11-0/+13
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6434 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-05Fix more FSF addressesblueswir11-1/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6192 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-29Prepare for handling different BSD mmap() flagsblueswir11-4/+5
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5809 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-26Preliminary BSD user emulator supportblueswir11-0/+545
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
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