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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_missing/host_missing/accel_missing/1755
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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+qemu-arm fails to execute a cortex-M binary (page_set_flags: Assertion 'last <= GUEST_ADDR_MAX' failed.)
+Description of problem:
+I've noticed that qemu-arm (so linux-user mode) fails to execute a binary targeting cortex-M. This used to work until commit
+"Make the commpage executable".
+Steps to reproduce:
+1. Compile a simple hello.c for arm-eabi. If you don't have such a toolchain, you can download one from https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads    For instance https://developer.arm.com/-/media/Files/downloads/gnu/12.2.rel1/binrel/arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi.tar.xz (for an x86_64 linux host)
+
+2.# compile for cortex-m3:
+
+3. arm-none-eabi-gcc hello.c -o hello.exe.m3 -mcpu=cortex-m3 -specs=rdimon.specs
+
+4.qemu-arm -cpu cortex-m3 hello.exe.m3
+.....user-exec.c:492: page_set_flags: Assertion 'last <= GUEST_ADDR_MAX' failed.
+
+5. # compile for cortex-a9:
+
+6. arm-none-eabi-gcc hello.c -o hello.exe.a9 -mcpu=cortex-a9 -specs=rdimon.specs
+
+7. qemu-arm -cpu cortex-a9 hello.exe.a9
+Hello