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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_arm/host_missing/accel_missing/1850
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip
clean up repository
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-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:
-