qemu-e2k/linux-user/hppa
Helge Deller bd4b7fd6ba linux-user/hppa: Fix segfaults on page zero
This program:

    int main(void) { asm("bv %r0(%r0)"); return 0; }

produces on real hppa hardware the expected segfault:

    SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x3} ---
    killed by SIGSEGV +++
    Segmentation fault

But when run on linux-user you get instead internal qemu errors:

ERROR: linux-user/hppa/cpu_loop.c:172:cpu_loop: code should not be reached
Bail out! ERROR: linux-user/hppa/cpu_loop.c:172:cpu_loop: code should not be reached
ERROR: accel/tcg/cpu-exec.c:933:cpu_exec: assertion failed: (cpu == current_cpu)
Bail out! ERROR: accel/tcg/cpu-exec.c:933:cpu_exec: assertion failed: (cpu == current_cpu)

Fix it by adding the missing case for the EXCP_IMP trap in
cpu_loop() and raise a segfault.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <YtWNC56seiV6VenA@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-07-25 10:42:11 +02:00
..
cpu_loop.c linux-user/hppa: Fix segfaults on page zero 2022-07-25 10:42:11 +02:00
meson.build meson: linux-user 2020-08-21 06:30:38 -04:00
signal.c linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURN 2021-12-19 20:47:33 -08:00
sockbits.h Supply missing header guards 2019-06-12 13:20:21 +02:00
syscall.tbl linux-user: update syscall.tbl to Linux v5.13 2021-07-13 13:59:59 +02:00
syscallhdr.sh linux-user, hppa: add syscall table generation support 2020-03-20 16:02:00 +01:00
target_cpu.h linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
target_elf.h
target_errno_defs.h linux-user/hppa: Move errno definitions to 'target_errno_defs.h' 2021-07-12 21:53:35 +02:00
target_fcntl.h linux-user: fix O_NONBLOCK in signalfd4() and eventfd2() syscalls 2021-02-13 22:50:49 +01:00
target_prctl.h target/hppa: Implement prctl_unalign_sigbus 2022-01-06 11:40:52 +01:00
target_resource.h linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.h 2022-02-01 08:01:38 +01:00
target_signal.h linux-user: Remove TARGET_SIGSTKSZ 2022-01-06 11:40:52 +01:00
target_structs.h linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
target_syscall.h linux-user: target_syscall.h remove definition TARGET_MINSIGSTKSZ 2022-01-06 11:40:52 +01:00
termbits.h linux-user: Add missing termbits types and values definitions 2020-08-27 12:29:50 +02:00