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Helge Deller b8002058c4 linux-user: Fix openat() emulation to correctly detect accesses to /proc 
In qemu we catch accesses to files like /proc/cpuinfo or /proc/net/route
and return to the guest contents which would be visible on a real system
(instead what the host would show).

This patch fixes a bug, where for example the accesses
    cat /proc////cpuinfo
or
    cd /proc && cat cpuinfo
will not be recognized by qemu and where qemu will wrongly show
the contents of the host's /proc/cpuinfo file.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230803214450.647040-2-deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-09 09:31:30 -07:00
..
aarch64 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
alpha linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
arm linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
cris linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
generic
hexagon linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
hppa linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
i386 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
include linux-user: cleanup unused linux-user/include/host directories 2023-08-08 20:44:08 +02:00
loongarch64 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
m68k linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
microblaze linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
mips linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
mips64
nios2 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
openrisc linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
ppc linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
riscv linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
s390x linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
sh4 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
sparc linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
x86_64 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
xtensa linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
cpu_loop-common.h
elfload.c linux-user: Rewrite non-fixed probe_guest_base 2023-08-08 13:41:55 -07:00
errnos.c.inc
exit.c
fd-trans.c
fd-trans.h
flat.h
flatload.c linux-user: Properly set image_info.brk in flatload 2023-08-06 16:46:13 -07:00
ioctls.h
linux_loop.h
linuxload.c
loader.h
main.c linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
meson.build
mmap.c linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
qemu.h linux-user: Adjust initial brk when interpreter is close to executable 2023-08-08 13:27:17 -07:00
semihost.c
signal-common.h
signal.c
socket.h
strace.c linux-user: Fix strace output for old_mmap 2023-07-18 20:42:05 +02:00
strace.h
strace.list
syscall.c linux-user: Fix openat() emulation to correctly detect accesses to /proc 2023-08-09 09:31:30 -07:00
syscall_defs.h
syscall_types.h
thunk.c linux-user: Use ARRAY_SIZE with bitmask_transtbl 2023-08-09 07:17:42 -07:00
trace-events
trace.h
uaccess.c
uname.c
uname.h
user-internals.h
user-mmap.h linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h 2023-08-08 13:27:15 -07:00
vm86.c