diff options
Diffstat (limited to 'gitlab/issues_text/target_arm/host_missing/accel_missing/1850')
| -rw-r--r-- | gitlab/issues_text/target_arm/host_missing/accel_missing/1850 | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/gitlab/issues_text/target_arm/host_missing/accel_missing/1850 b/gitlab/issues_text/target_arm/host_missing/accel_missing/1850 deleted file mode 100644 index ceda953ab..000000000 --- a/gitlab/issues_text/target_arm/host_missing/accel_missing/1850 +++ /dev/null @@ -1,29 +0,0 @@ -AARCH64 Illegal Instruction (CurrentEL) -Description of problem: -While emulating Aarch64 in QEMU, whenever the instruction `CurrentEL` is executed, -QEMU crashes with the following message. - -`qemu: uncaught target signal 4 (Illegal instruction) - core dumped -Illegal instruction (core dumped)` - -I've tried both QEMU user space translation (qemu-aarch64-static) and QEMU emulation (qemu-system-aarch64), -and both fail with the above message. - -C Code to reproduce bug, courtesy of https://github.com/cirosantilli/linux-kernel-module-cheat/blob/35684b1b7e0a04a68987056cb15abd97e3d2f0cc/baremetal/arch/aarch64/el.c -``` -#include <stdio.h> -#include <inttypes.h> - -int main(void) { - register uint64_t x0 __asm__ ("x0"); - __asm__ ("mrs x0, CurrentEL;" : : : "%x0"); - printf("%" PRIu64 "\n", x0 >> 2); - return 0; -} -``` -Steps to reproduce: -1. Copy C code above into file. -2. Compile code `gcc ./main.c --static` -3. Execute elf bin `./a.out` -Additional information: - |