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authorChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:00 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:33 +0000
commit9aba81d8eb048db908c94a3c40c25a5fde0caee6 (patch)
treeb765e7fb5e9a3c2143c68b0414e0055adb70e785 /results/classifier/118/none/1488
parentb89a938452613061c0f1f23e710281cf5c83cb29 (diff)
downloadqemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.tar.gz
qemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.zip
add 18th iteration of classifier
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diff --git a/results/classifier/118/none/1488 b/results/classifier/118/none/1488
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+graphic: 0.783
+device: 0.724
+ppc: 0.677
+PID: 0.656
+semantic: 0.654
+debug: 0.615
+arm: 0.595
+performance: 0.592
+socket: 0.564
+architecture: 0.560
+assembly: 0.510
+mistranslation: 0.499
+kernel: 0.497
+register: 0.416
+permissions: 0.402
+hypervisor: 0.367
+vnc: 0.330
+user-level: 0.330
+i386: 0.309
+x86: 0.300
+network: 0.287
+files: 0.259
+risc-v: 0.223
+VMM: 0.201
+TCG: 0.187
+peripherals: 0.179
+virtual: 0.163
+boot: 0.152
+KVM: 0.068
+
+Memory not accessible from GDB when using mps3-an547
+Description of problem:
+Memory (including variables) is not accessible when connecting to the emulated machine via GDB
+Steps to reproduce:
+1. Create minimal program `main.c`:
+    ```c
+    int main(void) {
+        int myvar = 42;
+        for(;;)
+    }
+    ```
+2. Compile
+   ```bash
+    arm-none-eabi-gcc -c -o build/main.o -c -mcpu=cortex-m55 -mfloat-abi=hard -mthumb -funsigned-char -mlittle-endian -O0 -g -std=c11  main.c
+    ```
+    (ARM startup files and include directories omitted for brevity)
+3. Link 
+    ```bash
+    arm-none-eabi-g++ -o build/test.elf build/main.o -mcpu=cortex-m55 -mfloat-abi=hard -mthumb -funsigned-char -mlittle-endian --entry=Reset_Handler -static -T./platform.ld -O0 -g
+    ```
+    (ARM startup files omitted for brevity)
+4. Run binary in QEMU:
+   ```bash
+    qemu-system-arm --machine mps3-an547 -serial mon:stdio -kernel test.elf -gdb tcp::1234 -S
+    ```
+5. Attach using GDB `arm-none-eabi-gdb build/test.elf` and set break point to infinite loop
+   ```gdb
+   target remote :1234
+   break main.c:18
+   continue
+   print myvar
+   ```
+
+Expected Output: 42  
+Actual Output: `Cannot access memory at address 0x11fffe4`