restructure results

1 files changed, 56 insertions, 0 deletions

diff --git a/results/classifier/zero-shot-user-mode/instruction/1926246 b/results/classifier/zero-shot-user-mode/instruction/1926246
new file mode 100644
index 00000000..a592ad30
--- /dev/null
+++ b/results/classifier/zero-shot-user-mode/instruction/1926246
@@ -0,0 +1,56 @@
+instruction: 0.460
+syscall: 0.393
+runtime: 0.147
+
+
+
+chrome based apps can not be run under qemu user mode
+
+chrome uses /proc/self/exe to fork render process.
+Here a simple code to reproduce the issue. It's output parent then child but failed with qemu: unknown option 'type=renderer'.
+
+Maybe we can modify exec syscall to replace /proc/self/exe to the real path.
+
+//gcc -o self self.c 
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+int main(int argc, char** argv) {
+  if(argc==1){
+    printf ("parent\n");
+	if ( fork() == 0 )
+    {
+        return execl("/proc/self/exe","/proc/self/exe", "--type=renderer",NULL);
+    }
+  } else {
+    printf ("child\n");
+  }
+  return 0;
+}
+
+similar reports:
+https://github.com/AppImage/AppImageKit/issues/965  
+https://github.com/golang/go/issues/42080  
+
+Workardound:
+compile chrome or your chrome based app with a patch to content/common/child_process_host_impl.cc:GetChildPath, get the realpath of /proc/self/exe:  
+
+diff --git a/content/common/child_process_host_impl.cc b/content/common/child_process_host_impl.cc
+index bc78aba80ac8..9fab74d3bae8 100644
+--- a/content/common/child_process_host_impl.cc
++++ b/content/common/child_process_host_impl.cc
+@@ -60,8 +60,12 @@ base::FilePath ChildProcessHost::GetChildPath(int flags) {
+ #if defined(OS_LINUX)
+   // Use /proc/self/exe rather than our known binary path so updates
+   // can't swap out the binary from underneath us.
+-  if (child_path.empty() && flags & CHILD_ALLOW_SELF)
+-    child_path = base::FilePath(base::kProcSelfExe);
++  if (child_path.empty() && flags & CHILD_ALLOW_SELF) {
++    if (!ReadSymbolicLink(base::FilePath(base::kProcSelfExe), &child_path)) {
++      NOTREACHED() << "Unable to resolve " << base::kProcSelfExe << ".";
++      child_path = base::FilePath(base::kProcSelfExe);
++    }
++  }
+ #endif
+
+   // On most platforms, the child executable is the same as the current
\ No newline at end of file