The Nios II target is deprecated since v8.2 in commit 9997771bc1
("target/nios2: Deprecate the Nios II architecture").
Remove:
- Buildsys / CI infra
- User emulation
- System emulation (10m50-ghrd & nios2-generic-nommu machines)
- Tests
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Message-Id: <20240327144806.11319-3-philmd@linaro.org>
Passing the tswapped structure to strace means that
our internal si_type is also gone, which then aborts
in print_siginfo.
Fixes: 4d6d8a05a0 ("linux-user: Move tswap_siginfo out of target code")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use glib allocation as recommended by the coding convention
Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Message-Id: <20240317171747.1642207-1-phind.uet@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The copy back to siginfo_t should be conditional only on arg3,
not the specific values that might have been written.
The copy back to rusage was missing entirely.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2262
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Fan <alex.fan.q@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
In the h != g && shmaddr == NULL && !reserved_va case, target_shmat()
incorrectly mmap()s the initial anonymous range with
MAP_FIXED_NOREPLACE, even though the earlier mmap_find_vma() has
already reserved the respective address range.
Fix by using MAP_FIXED when "mapped", which is set after
mmap_find_vma(), is true.
Fixes: 78bc8ed9a8 ("linux-user: Rewrite target_shmat")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240325192436.561154-4-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The indices of arguments passed to print_shmat() are all off-by-1,
because arg1 is the ipc() command. Fix them.
New output for linux-shmat-maps test:
3501769 shmat(4784214,0x0000000000800000,SHM_RND) = 0
Fixes: 9f7c97324c ("linux-user: Add strace for shmat")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240325192436.561154-3-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The indices of arguments used with semctl() are all off-by-1, because
arg1 is the ipc() command. Fix them. While at it, reuse print_semctl().
New output (for a small test program):
3540333 semctl(999,888,SEM_INFO,0x00007fe5051ee9a0) = -1 errno=14 (Bad address)
Fixes: 7ccfb2eb5f ("Fix warnings that would be caused by gcc flag -Wwrite-strings")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240325192436.561154-2-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
- fix the over rebuilding of test VMs
- support Xfer:siginfo:read in gdbstub
- fix double close() in gdbstub
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAmXxkb0ACgkQ+9DbCVqe
KkSw9wf+K+3kJYaZ2unEFku3Y6f4Z9XkrZCsFQFVNIJQgpYVc6peQyLUB1pZwzZc
yoQhmTIgej16iRZc7gEcJhFl2zlX2vulE/m+wiaR0Chv3E2r510AGn4aWl+GLB9+
/WduHaz1NobPW4JWaarxespa84Re8QZQgqkHX4nwYd++FW63E4uxydL4F1nmSNca
eTA6RwS48h4wqPzHBX72hYTRUnYrDUSSGCGUDzK3NHumuPi+AQ77GLRMO0MTYFfy
hWriapogCmghY+Xtn++eUIwDyh1CCnUT6Ntf5Qj06bZ+f6eaTwINM8QWhj9mxYX+
5/F5Q4JJDqRPYw/hF4wYXRsiZxTYFw==
=BOWW
-----END PGP SIGNATURE-----
Merge tag 'pull-maintainer-final-130324-1' of https://gitlab.com/stsquad/qemu into staging
final updates for 9.0 (testing, gdbstub):
- fix the over rebuilding of test VMs
- support Xfer:siginfo:read in gdbstub
- fix double close() in gdbstub
# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAmXxkb0ACgkQ+9DbCVqe
# KkSw9wf+K+3kJYaZ2unEFku3Y6f4Z9XkrZCsFQFVNIJQgpYVc6peQyLUB1pZwzZc
# yoQhmTIgej16iRZc7gEcJhFl2zlX2vulE/m+wiaR0Chv3E2r510AGn4aWl+GLB9+
# /WduHaz1NobPW4JWaarxespa84Re8QZQgqkHX4nwYd++FW63E4uxydL4F1nmSNca
# eTA6RwS48h4wqPzHBX72hYTRUnYrDUSSGCGUDzK3NHumuPi+AQ77GLRMO0MTYFfy
# hWriapogCmghY+Xtn++eUIwDyh1CCnUT6Ntf5Qj06bZ+f6eaTwINM8QWhj9mxYX+
# 5/F5Q4JJDqRPYw/hF4wYXRsiZxTYFw==
# =BOWW
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 13 Mar 2024 11:45:01 GMT
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* tag 'pull-maintainer-final-130324-1' of https://gitlab.com/stsquad/qemu:
gdbstub: Fix double close() of the follow-fork-mode socket
tests/tcg: Add multiarch test for Xfer:siginfo:read stub
gdbstub: Add Xfer:siginfo:read stub
gdbstub: Save target's siginfo
linux-user: Move tswap_siginfo out of target code
gdbstub: Rename back gdb_handlesig
tests/vm: ensure we build everything by default
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Save target's siginfo into gdbserver_state so it can be used later, for
example, in any stub that requires the target's si_signo and si_code.
This change affects only linux-user mode.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240309030901.1726211-4-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Move tswap_siginfo from target code to handle_pending_signal. This will
allow some cleanups and having the siginfo ready to be used in gdbstub.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240309030901.1726211-3-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Rename gdb_handlesig_reason back to gdb_handlesig. There is no need to
add a wrapper for gdb_handlesig and rename it when a new parameter is
added.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240309030901.1726211-2-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Fixes Coverity CID: 1534964
Fixes: 106f8da664 ("linux-user/elfload: Open core file after vma_init")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Both of these only pass and return integral values.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The "set" prctl passes through integral values.
The "get" prctl returns the value into a pointer.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1929
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add missing FIFREEZE and FITHAW ioctls.
Signed-off-by: Michael Vogt <michael.vogt@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240220105726.8852-1-michael.vogt@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-ID: <20240129164514.73104-30-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Avoid CPUArchState local variable when cpu_env() is used once.
Mechanical patch using the following Coccinelle spatch script:
@@
type CPUArchState;
identifier env;
expression cs;
@@
{
- CPUArchState *env = cpu_env(cs);
... when != env
- env
+ cpu_env(cs)
... when != env
}
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This patch exposes Ztso via hwprobe in QEMU's user space emulator.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240207122256.902627-3-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Upstream Linux recently added many additional keys to the hwprobe API.
This patch adds support for all of them with the exception of Ztso,
which is currently not supported in QEMU.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240207115926.887816-3-christoph.muellner@vrull.eu>
[ Changes by AF:
- Fixup whitespace
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Upstream Linux recently added RISC-V Zicboz support to the hwprobe API.
This patch introduces this for QEMU's user space emulator.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240207115926.887816-2-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The upcoming follow-fork-mode child support requires post-fork message
exchange between the parent and the child. Prepare gdbserver_fork() for
this purpose. Rename it to gdbserver_fork_end() to better reflect its
purpose.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-8-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-9-alex.bennee@linaro.org>
The upcoming follow-fork-mode child support requires knowing the child
pid. Pass it down.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-7-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-8-alex.bennee@linaro.org>
The upcoming follow-fork-mode child support requires knowing the child
pid. Pass it down.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-6-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-7-alex.bennee@linaro.org>
The upcoming follow-fork-mode child support requires knowing when
fork() is about to happen in order to initialize its state. Add a hook
for that.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-5-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-6-alex.bennee@linaro.org>
Currently ts_tid contains the parent tid after fork(), which is not
correct. So far it has not affected anything, but the upcoming
follow-fork-mode child support relies on the correct value, so fix it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20240219141628.246823-4-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-5-alex.bennee@linaro.org>
A CPU's TaskState is stored in the CPUState's void *opaque field,
accessing which is somewhat awkward due to having to use a cast.
Introduce a wrapper and use it everywhere.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240219141628.246823-3-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>
The kernel abi was changed with
commit d23b77953f5a4fbf94c05157b186aac2a247ae32
Author: Huacai Chen <chenhuacai@kernel.org>
Date: Wed Jan 17 12:43:08 2024 +0800
LoongArch: Change SHMLBA from SZ_64K to PAGE_SIZE
during the v6.8 cycle.
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is the only case in which we expect to have no host memory backing
for a guest memory page, because in general linux user processes cannot
map any pages in the top half of the 64-bit address space.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2170
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The assertion was never correct, because the alignment is a composite
of the image alignment and SHMLBA. Even if the image alignment didn't
match the image address, an assertion would not be correct -- more
appropriate would be an error message about an ill formed image. But
the image cannot be held to SHMLBA under any circumstances.
Fixes: ee94743034 ("linux-user: completely re-write init_guest_space")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2157
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reported-by: Alexey Sheplyakov <asheplyakov@yandex.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Bizzarely, it is possible to set /proc/sys/vm/mmap_min_addr
to a value below the host page size. Fix that.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-32-richard.henderson@linaro.org>
If set, match the host and guest page sizes.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-30-richard.henderson@linaro.org>
This option controls the host page size. From the mis-usage in
our own testsuite, this is easily confused with guest page size.
The only thing that occurs when changing the host page size is
that stuff breaks, because one cannot actually change the host
page size. Therefore reject all but the no-op setting as part
of the deprecation process.
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-27-richard.henderson@linaro.org>
Work much harder to get alignment and mapping beyond the end
of the file correct. Both of which are excercised by our
test-mmap for alpha (8k pages) on any 4k page host.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-23-richard.henderson@linaro.org>
For the cases for which the host mmap succeeds, but does
not yield the desired address, use do_munmap to restore
the reserved_va memory reservation.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For reserved_va, place all non-fixed maps then proceed
as for MAP_FIXED.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-21-richard.henderson@linaro.org>
Use a subroutine instead of a goto within target_mmap__locked.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-20-richard.henderson@linaro.org>
We cannot skip over the_end1 to the_end, because we fail to
record the validity of the guest page with the interval tree.
Remove "the_end" and rename "the_end1" to "the_end".
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-19-richard.henderson@linaro.org>
Basic validation of operands does not require the lock.
Hoist them from target_mmap__locked back into target_mmap.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-18-richard.henderson@linaro.org>
This removes a hidden use of qemu_host_page_size, using instead
the existing host_page_size local within each function.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-11-richard.henderson@linaro.org>
We already have qemu_real_host_page_size() in a local variable.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-10-richard.henderson@linaro.org>
Use qemu_real_host_page_size.
If the commpage is not within reserved_va, use MAP_FIXED_NOREPLACE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-8-richard.henderson@linaro.org>
Use qemu_real_host_page_size.
If !reserved_va, use MAP_FIXED_NOREPLACE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-7-richard.henderson@linaro.org>
If reserved_va, then we have already reserved the entire
guest virtual address space; no need to remap page.
If !reserved_va, then use MAP_FIXED_NOREPLACE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-6-richard.henderson@linaro.org>
AT_PAGESZ is supposed to advertise the guest page size.
The random adjustment made here using qemu_host_page_size
does not match anything else within linux-user.
The idea here is good, but should be done more systemically
via adjustment to TARGET_PAGE_SIZE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-5-richard.henderson@linaro.org>
The host SHMLBA is by definition a multiple of the host page size.
Thus the remaining component of qemu_host_page_size is the
target page size.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-4-richard.henderson@linaro.org>
Use TARGET_PAGE_SIZE and MAP_FIXED_NOREPLACE.
We really should be attending to this earlier during
probe_guest_base, as well as better detection and
emulation of various Linux personalities.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-3-richard.henderson@linaro.org>
By unprotecting regions, we re-instate writability and
unify regions that have been split, which may reduce
the total number of regions.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rather than creating new data structures for vma,
rely on the IntervalTree used by walk_memory_regions.
Use PAGE_* constants, per the page table api, rather
than PROT_* constants, per the mmap api.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the flags that we've already saved in order to test
accessibility. Use g2h_untagged and compare guest memory
directly instead of copy_from_user.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We do not need to copy pages from guest memory before writing
them out. Because vmas are contiguous in host memory, we can
write them in one go.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Fixes a bug in which write_note() wrote namesz_rounded
and datasz_rounded bytes, even though name and data
pointers contain only the unrounded number of bytes.
Instead of many small writes, allocate a block to contain all
of the elf headers and all of the notes. Copy the data into the
block piecemeal and the write it to the file as a chunk.
This also avoids the need to lseek forward for alignment.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Verify the size of the corefile vs the rlimit before
opening and creating the core file at all.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Do not allow changes to the set of cpus and memory regions
while we are dumping core.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Swap the ordering of vma_init and open. This will be necessary
for further changes, and adjusts the error cleanup path. Narrow
the scope of corefile, as the variable can be freed immediately
after use in open().
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
On the off-chance that one of the cleanup functions changes
errno, latch the errno that we want to return beforehand.
Flush errno to 0 upon success, rather than at the beginning.
No need to avoid negation of 0.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Ignoring the fact that g_malloc cannot fail, the structure
is quite small and might as well be allocated locally.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In fill_note_info, there were unnecessary checks for
success of g_new/g_malloc. But these structures do not
need to be dyamically allocated at all, and can in fact
be statically allocated within the parent structure.
This removes all error paths from fill_note_info, so
change the return type to void.
Change type of signr to match both caller (elf_core_dump)
and callee (fill_prstatus), which both use int for signr.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Do not dump core at all if getrlimit fails; this ensures
that dumpsize is valid throughout the function, not just
for the initial test vs rlim_cur.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
While async processes are rare for linux-user we do use them from time
to time. The most obvious one is tb_flush when we run out of
translation space. We will also need this when we move plugin
vcpu_init to an async task.
Fix nios2 to follow its older, wiser and more stable siblings.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-19-alex.bennee@linaro.org>
The API does not generate an error for setting ASYNC | SYNC; that merely
constrains the selection vs the per-cpu default. For qemu linux-user,
choose SYNC as the default.
Cc: qemu-stable@nongnu.org
Reported-by: Gustavo Romero <gustavo.romero@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-id: 20240207025210.8837-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Without this padding, an unwind through the signal handler
will pick up the unwind info for the preceding syscall.
This fixes gcc's 30_threads/thread/native_handle/cancel.cc.
Cc: qemu-stable@nongnu.org
Fixes: ee95fae075 ("linux-user/aarch64: Add vdso")
Resolves: https://linaro.atlassian.net/browse/GNU-974
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240202034427.504686-1-richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231103173841.33651-16-richard.henderson@linaro.org>
QEMU coding style recommends using structure typedefs.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
tcg/ should not depend on accel/tcg/, but perf and debuginfo
support provided by the latter are being used by tcg/tcg.c.
Since that's the only user, move both to tcg/.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231212003837.64090-5-iii@linux.ibm.com>
Message-Id: <20240125054631.78867-5-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
A process can opt-out of coredump creation by calling
prctl(PR_SET_DUMPABLE, 0).
linux-user passes this call from the guest through to the
operating system.
From there it can be read back again to avoid creating coredumps from
qemu-user itself if the guest chose so.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Message-Id: <20240120-qemu-user-dumpable-v3-2-6aa410c933f1@t-8ch.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Should getrlimit() fail the value of dumpsize.rlimit_cur may not be
initialized. Avoid reading garbage data by checking the return value of
getrlimit.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Message-Id: <20240120-qemu-user-dumpable-v3-1-6aa410c933f1@t-8ch.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
A typo in sizeof_reg put the registers at the wrong offset.
Simplify the expressions to use positive addresses from the
start of uc_mcontext instead of negative addresses from the
end of uc_mcontext.
Reported-by: Vineet Gupta <vineetg@rivosinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Commit f4e1168198 (linux-user: Split out host_sig{segv,bus}_handler)
introduced a bug, when returning from host_sigbus_handler the PC is
never set. Thus cpu_loop_exit_restore is called with a zero PC and
we immediate get a SIGSEGV.
Signed-off-by: Robbin Ehn <rehn@rivosinc.com>
Fixes: f4e1168198 ("linux-user: Split out host_sig{segv,bus}_handler")
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Message-Id: <33f27425878fb529b9e39ef22c303f6e0d90525f.camel@rivosinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This option has been deprecated before the 8.1 release,
in commit 12fd0f41d0 ("Document that -singlestep command
line option is deprecated"). Time to drop it.
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240117151430.29235-4-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
'ev67' CPU class will be returned to match everything, which makes
no sense as mentioned in the comments. Remove the logic to fall
back to 'ev67' CPU class to match everything.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231114235628.534334-2-gshan@redhat.com>
[PMD: Reword subject, replace 'any' -> 'ev67' on linux-user]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Replaces TABS with spaces to ensure have a consistent coding
style with an indentation of 4 spaces in the SH4 subsystem.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/376
Signed-off-by: Yihuan Pan <xun794@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231124044554.513752-1-xun794@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Support for probing the Zicboz block size landed in Linux 6.6, which was
released a few weeks ago. This provides the user-configured block size
when Zicboz is enabled.
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20231110173716.24423-1-palmer@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The file offset of the load segment is not relevant to the
low address, only the beginning of the virtual address page.
Cc: qemu-stable@nongnu.org
Fixes: a93934fecd ("elf: take phdr offset into account when calculating the program load address")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1952
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
In FDPIC signal handlers are passed around as FD pointers. Actual code
address and GOT pointer must be fetched from memory by the QEMU code
that implements kernel signal delivery functionality. This change is
equivalent to the following kernel change:
9c2cc74fb31e ("xtensa: fix signal delivery to FDPIC process")
Cc: qemu-stable@nongnu.org
Fixes: d2796be69d ("linux-user: add support for xtensa FDPIC")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Fix:
hw/core/machine.c:1302:22: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
const CPUArchId *cpus = possible_cpus->cpus;
^
hw/core/numa.c:69:17: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
uint16List *cpus = NULL;
^
hw/acpi/aml-build.c:2005:20: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
CPUArchIdList *cpus = ms->possible_cpus;
^
hw/core/machine-smp.c:77:14: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
unsigned cpus = config->has_cpus ? config->cpus : 0;
^
include/hw/core/cpu.h:589:17: note: previous declaration is here
extern CPUTailQ cpus;
^
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Message-Id: <20231010115048.11856-2-philmd@linaro.org>
hw/hppa: Map astro chip 64-bit I/O mem
hw/hppa: Turn on 64-bit cpu for C3700
-----BEGIN PGP SIGNATURE-----
iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmVJqDEdHHJpY2hhcmQu
aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8n5Qf/R15CvXGMgjDJjoV2
ILMFM+Rpg17SR2yu060sEZ01R3iHdobeCcDB184K0RI9JLrpcBFar+PeF023o9fn
O9MnfIyL6/ggzaeIpQ9AD2uT0HJMU9hLFoyQqQvnhDHHcT34raL2+Zkrkb2vvauH
XET7awXN9xYCnY4ALrfcapzlrHqI77ahz0vReUWPxk7eGY2ez8dEOiFW2WLBmuMx
mAFAMrFQhq66GjoMDl8JiGHD/KBJQ9X4eUAEotS27lTCOYU0ryA6dWBGqBSTWCUa
smpxkeGQKOew+717HV1H4FdCRYG1Rgm7yFN423JULeew+T7DHvfe0K55vMIulx5I
g3oVZA==
=dxC7
-----END PGP SIGNATURE-----
Merge tag 'pull-pa-20231106' of https://gitlab.com/rth7680/qemu into staging
target/hppa: Implement PA2.0 instructions
hw/hppa: Map astro chip 64-bit I/O mem
hw/hppa: Turn on 64-bit cpu for C3700
# -----BEGIN PGP SIGNATURE-----
#
# iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmVJqDEdHHJpY2hhcmQu
# aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8n5Qf/R15CvXGMgjDJjoV2
# ILMFM+Rpg17SR2yu060sEZ01R3iHdobeCcDB184K0RI9JLrpcBFar+PeF023o9fn
# O9MnfIyL6/ggzaeIpQ9AD2uT0HJMU9hLFoyQqQvnhDHHcT34raL2+Zkrkb2vvauH
# XET7awXN9xYCnY4ALrfcapzlrHqI77ahz0vReUWPxk7eGY2ez8dEOiFW2WLBmuMx
# mAFAMrFQhq66GjoMDl8JiGHD/KBJQ9X4eUAEotS27lTCOYU0ryA6dWBGqBSTWCUa
# smpxkeGQKOew+717HV1H4FdCRYG1Rgm7yFN423JULeew+T7DHvfe0K55vMIulx5I
# g3oVZA==
# =dxC7
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 07 Nov 2023 11:00:01 HKT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* tag 'pull-pa-20231106' of https://gitlab.com/rth7680/qemu: (85 commits)
hw/hppa: Allow C3700 with 64-bit and B160L with 32-bit CPU only
hw/hppa: Turn on 64-bit CPU for C3700 machine
hw/pci-host/astro: Trigger CPU irq on CPU HPA in high memory
hw/pci-host/astro: Map Astro chip into 64-bit I/O memory region
target/hppa: Improve interrupt logging
target/hppa: Update IIAOQ, IIASQ for pa2.0
target/hppa: Create raise_exception_with_ior
target/hppa: Add unwind_breg to CPUHPPAState
target/hppa: Clear upper bits in mtctl for pa1.x
target/hppa: Avoid async_safe_run_on_cpu on uniprocessor system
target/hppa: Add pa2.0 cpu local tlb flushes
target/hppa: Implement pa2.0 data prefetch instructions
linux-user/hppa: Drop EXCP_DUMP from handled exceptions
hw/hppa: Translate phys addresses for the cpu
include/hw/elf: Remove truncating signed casts
target/hppa: Return zero for r0 from load_gpr
target/hppa: Precompute zero into DisasContext
target/hppa: Fix interruption based on default PSW
target/hppa: Implement PERMH
target/hppa: Implement MIXH, MIXW
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Avoid target_ulong and use abi_* types.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Commit f57d5f8004 deprecated the 'any' CPU type but failed to change the
default CPU for linux-user. The result is that all linux-users
invocations that doesn't specify a different CPU started to show a
deprecation warning:
$ ./build/qemu-riscv64 ./foo-novect.out
qemu-riscv64: warning: The 'any' CPU is deprecated and will be removed in the future.
Change the default CPU for RISC-V linux-user from 'any' to 'max'.
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Fixes: f57d5f8004 ("target/riscv: deprecate the 'any' CPU type")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231020074501.283063-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
All instructions have been converted to generate
full condition codes explicitly.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Step in removing CC_OP: change the representation of CC_OP_FLAGS.
The 8 bits are distributed between 6 variables, which should make
it easy to keep up to date.
The code within cc_helper.c is quite ugly but is only temporary.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Isolate linux-user from changes to icc representation.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
