Alex Bennée 11d3672788 linux-user: expand reserved brk space for 64bit guests ... A recent change to fix commpage allocation issues on 32bit hosts revealed another intermittent issue on s390x. The root cause was the headroom we give for the brk space wasn't enough causing the guest to attempt to map something on top of QEMUs own pages. We do not currently do anything to protect from this (see #555). By inspection the brk mmap moves around and top of the address range has been measured as far as 19Mb away from the top of the binary. As we chose a smallish number to keep 32bit on 32 bit feasible we only increase the gap for 64 bit guests. This does mean that 64-on-32 static binaries are more likely to fail to find a hole in the address space but that is hopefully a fairly rare situation. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220113165550.4184455-1-alex.bennee@linaro.org>		2022-01-18 16:44:05 +00:00
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aarch64	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
alpha	linux-user/alpha: Use force_sig_fault	2022-01-11 18:40:43 +01:00
arm	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
cris	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
generic	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
hexagon	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
hppa	linux-user/hppa: Set FPE_CONDTRAP for COND	2022-01-11 18:40:43 +01:00
i386	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
include	user: move common-user includes to a subdirectory of {bsd,linux}-user/	2022-01-12 14:08:29 +01:00
m68k	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
microblaze	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
mips	target/mips: Extract trap code into env->error_code	2022-01-11 18:40:44 +01:00
mips64	linux-user: Split out do_prctl and subroutines	2022-01-06 11:40:52 +01:00
nios2	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
openrisc	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
ppc	linux-user/ppc: Use force_sig_fault	2022-01-11 18:40:44 +01:00
riscv	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
s390x	linux-user/s390x: Use force_sig_fault	2022-01-11 18:40:44 +01:00
sh4	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
sparc	linux-user/sparc: Use force_sig_fault	2022-01-11 18:40:44 +01:00
x86_64	linux-user: Move target_struct.h generic definitions to generic/	2022-01-11 18:40:44 +01:00
xtensa	linux-user/xtensa: Use force_sig_fault	2022-01-11 18:40:44 +01:00
cpu_loop-common.h	linux-user: Create special-errno.h	2021-12-19 20:47:33 -08:00
elfload.c	linux-user: expand reserved brk space for 64bit guests	2022-01-18 16:44:05 +00:00
errnos.c.inc	linux-user: Simplify host <-> target errno conversion using macros	2021-07-12 21:53:35 +02:00
exit.c	linux-user: Don't include gdbstub.h in qemu.h	2021-09-13 20:35:45 +02:00
fd-trans.c	linux-user: netlink: update IFLA_BRPORT entries	2022-01-06 11:40:53 +01:00
fd-trans.h	fd-trans: Fix race condition on reallocation of the translation table.	2021-07-12 21:54:46 +02:00
flat.h	linux-user/: fix some comment spelling errors	2020-09-17 20:39:22 +02:00
flatload.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +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: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
loader.h	linux-user: Split loader-related prototypes into loader.h	2021-09-13 20:35:44 +02:00
main.c	Pull request linux-user 20210916	2021-09-16 21:09:18 +01:00
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: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
qemu.h	linux-user: Drop unneeded includes from qemu.h	2021-09-13 20:35:45 +02:00
semihost.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
signal-common.h	linux-user: Create special-errno.h	2021-12-19 20:47:33 -08:00
signal.c	linux-user/nios2: Use set_sigmask in do_rt_sigreturn	2022-01-06 11:40:52 +01:00
socket.h	Supply missing header guards	2019-06-12 13:20:21 +02:00
strace.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
strace.h	linux-user: Split strace prototypes into strace.h	2021-09-13 20:35:44 +02:00
strace.list	linux-user: Add copy_file_range to strace.list	2021-05-18 07:09:58 +02:00
syscall.c	linux-user: Implement capability prctls	2022-01-11 18:40:44 +01:00
syscall_defs.h	linux-user/hppa: Set FPE_CONDTRAP for COND	2022-01-11 18:40:43 +01:00
syscall_types.h	linux-user: implement more loop ioctls	2021-11-29 14:54:17 +01:00
target_flat.h	Supply missing header guards	2019-06-12 13:20:21 +02:00
thunk.c	linux-user: Move thunk.c from top-level	2021-12-20 10:12:29 -08:00
trace-events	linux-user/trace-events: fix minor typo in format string	2021-06-17 16:09:11 +02:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
uaccess.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
uname.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00
uname.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
user-internals.h	linux-user: Mark cpu_loop() with noreturn attribute	2022-01-06 11:40:52 +01:00
user-mmap.h	linux-user: Split mmap prototypes into user-mmap.h	2021-09-13 20:35:45 +02:00
vm86.c	linux-user: Split linux-user internals out of qemu.h	2021-09-13 20:35:45 +02:00