OpenE2K/qemu-e2k
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4c184e70ad
qemu-e2k/linux-user
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Helge Deller 4c184e70ad linux-user/hppa: Allow PROT_GROWSUP and PROT_GROWSDOWN in mprotect() 
The hppa platform uses an upwards-growing stack and required in Linux
kernels < 5.18 an executable stack for signal processing.  For that some
executables and libraries are marked to have an executable stack, for
which glibc uses the mprotect() syscall to mark the stack like this:
 mprotect(xfa000000,4096,PROT_EXEC|PROT_READ|PROT_WRITE|PROT_GROWSUP).

Currently qemu will return -TARGET_EINVAL for this syscall because of the
checks in validate_prot_to_pageflags(), which doesn't allow the
PROT_GROWSUP or PROT_GROWSDOWN flags and thus triggers this error in the
guest:
 error while loading shared libraries: libc.so.6: cannot enable executable stack as shared object requires: Invalid argument

Allow mprotect() to handle both flags and thus fix the guest.
The glibc tst-execstack testcase can be used to reproduce the issue.

Signed-off-by: Helge Deller <deller@gmx.de>
Message-Id: <20220924114501.21767-7-deller@gmx.de>
[lvivier: s/elif TARGET_HPPA/elif defined(TARGET_HPPA)/]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-09-27 13:18:53 +02:00
..
aarch64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
alpha linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
arm linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
cris linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
generic linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
hexagon linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
hppa linux-user/hppa: Increase guest stack size to 80MB for hppa target 2022-09-27 09:33:56 +02:00
i386 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
include linux-user/host/s390: Treat EX and EXRL as writes 2022-05-23 22:54:02 +02:00
loongarch64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
m68k linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
microblaze linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
mips linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
mips64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
nios2 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
openrisc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
ppc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
riscv linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
s390x linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
sh4 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
sparc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
x86_64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
xtensa linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
cpu_loop-common.h linux-user: Log failing executable in EXCP_DUMP() 2022-09-27 09:29:33 +02:00
elfload.c linux-user/hppa: Drop stack guard page on hppa target 2022-09-27 09:33:56 +02:00
errnos.c.inc
exit.c
fd-trans.c linux-user: Fix inotify on aarch64 2022-01-27 16:58:33 +01:00
fd-trans.h
flat.h
flatload.c linux-user/flatload.c: Fix setting of image_info::end_code 2022-07-28 19:17:24 +02:00
ioctls.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
linux_loop.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
linuxload.c linux-user: Clean up arg_start/arg_end confusion 2022-05-23 08:15:19 +02:00
loader.h
main.c linux-user/hppa: Increase guest stack size to 80MB for hppa target 2022-09-27 09:33:56 +02:00
meson.build user: move common-user includes to a subdirectory of {bsd,linux}-user/ 2022-01-12 14:08:29 +01:00
mmap.c linux-user/hppa: Allow PROT_GROWSUP and PROT_GROWSDOWN in mprotect() 2022-09-27 13:18:53 +02:00
qemu.h linux-user: Honor PT_GNU_STACK 2022-09-06 08:04:25 +01:00
semihost.c semihosting: Remove qemu_semihosting_console_outs 2022-06-28 04:41:20 +05:30
signal-common.h linux-user: Add missing signals in strace output 2022-09-27 09:29:33 +02:00
signal.c linux-user: Add missing signals in strace output 2022-09-27 09:29:33 +02:00
socket.h
strace.c linux-user: Implement stracing madvise() 2022-09-27 09:30:44 +02:00
strace.h linux-user: Have do_syscall() use CPUArchState* instead of void* 2022-05-23 22:47:19 +02:00
strace.list linux-user: Add proper strace format strings for getdents()/getdents64() 2022-09-27 09:33:19 +02:00
syscall_defs.h linux-user: Fix TARGET_PROT_SEM for XTENSA 2022-09-27 09:33:19 +02:00
syscall_types.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
syscall.c linux-user/hppa: Increase guest stack size to 80MB for hppa target 2022-09-27 09:33:56 +02:00
target_flat.h
thunk.c linux-user: Move thunk.c from top-level 2021-12-20 10:12:29 -08:00
trace-events linux-user: Rename user_force_sig tracepoint to match function name 2022-01-18 12:41:42 +01:00
trace.h
uaccess.c
uname.c linux-user: Remove pointless CPU{ARCH}State casts 2022-05-23 22:47:20 +02:00
uname.h linux-user: Have do_syscall() use CPUArchState* instead of void* 2022-05-23 22:47:19 +02:00
user-internals.h linux-user: Add partial support for MADV_DONTNEED 2022-06-24 10:00:00 +02:00
user-mmap.h linux-user: Add partial support for MADV_DONTNEED 2022-06-24 10:00:00 +02:00
vm86.c