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-id = 1041
-title = "x86_64 Auxillary vector reports platform as i686 which doesn't match the linux kernel"
-state = "closed"
-created_at = "2022-05-27T18:11:26.561Z"
-closed_at = "2022-06-24T17:49:58.495Z"
-labels = ["Closed::Fixed", "linux-user", "target: i386"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/1041"
-host-os = "Debian GNU/Linux 11 (bullseye)"
-host-arch = "x86-64"
-qemu-version = "qemu-x86_64 version 5.2.0 (Debian 1:5.2+dfsg-11+deb11u1)"
-guest-os = "Linux"
-guest-arch = "x86-64"
-description = """Based on the kernel source in the auxiliary vector AT_PLATFORM should be `x86_64` (confirmed by running outside qemu). However qemu sets it to `i686`.
-
-This was originally reported with docker-for-mac, but was reduced on `x86_64` which is why it is pointless"""
-reproduce = """1. Compile the following for x86_64 (statically if you don't want have an x86_64 dynamic linker) (code originally from https://stackoverflow.com/questions/26520163/accessing-auxiliary-vectors-c)
-
-```
-#include <stdio.h>
-#include <elf.h>
-
-int main(int argc, char** argv, char* envp[]) {
-  Elf64_auxv_t *auxv;
-  while(*envp++ != NULL);
-
-  /*from stack diagram above: *envp = NULL marks end of envp*/
-  int i = 0 ;
-  for (auxv = (Elf64_auxv_t *)envp; auxv->a_type != AT_NULL; auxv++)
-    /* auxv->a_type = AT_NULL marks the end of auxv */
-  {
-    if( auxv->a_type == AT_PLATFORM)
-      printf("AT_PLATFORM is: %s\\n", ((char*)auxv->a_un.a_val));
-  }
-}
-```
-2. Run with `qemu-x86_64-static`
-3. See `AT_PLATFORM is: i686`
-4. Compare to "real" x86_64 bit system which gives `AT_PLATFORM is: x86_64`"""
-additional = """I think that adding `#define ELF_PLATFORM "x86_64"` [here](https://gitlab.com/qemu-project/qemu/-/blob/master/linux-user/elfload.c#L134) should work (but I don't fully understand the code). Otherwise we just end up getting the 32-bit case."""