static VexEndness arch_endness (VexArch va) {
switch (va) {
case VexArch_INVALID: failure_exit();
case VexArchX86: return VexEndnessLE;
case VexArchAMD64: return VexEndnessLE;
case VexArchARM: return VexEndnessLE;
case VexArchARM64: return VexEndnessLE;
case VexArchPPC32: return VexEndnessBE;
case VexArchPPC64:
/* ppc64 supports BE or LE at run time. So, on a LE system,
returns LE, on a BE system, return BE. */
return running_endness();
case VexArchS390X: return VexEndnessBE;
case VexArchMIPS32:
case VexArchMIPS64:
/* mips32/64 supports BE or LE, but at compile time.
If mips64 is compiled on a non mips system, the VEX lib
is missing bit and pieces of code related to endianess.
The mandatory code for this test is then compiled as BE.
So, if this test runs on a mips system, returns the
running endianess. Otherwise, returns BE as this one
has the more chances to work. */
{
VexArch ga;
get_guest_arch( &ga);
if (ga == VexArchMIPS64 || ga == VexArchMIPS32)
return running_endness();
else
return VexEndnessBE;
}
case VexArchTILEGX: return VexEndnessLE;
default: failure_exit();
}
}
int main(int argc, char **argv)
{
const int multiarch = argc > 1 ? atoi(argv[1]) : 0;
// 0 means: do not do multiarch
// > 0 means: do multiarch
// > VexArch_INVALID means: do multiarch, only and specifically
// with the host arch equal to multiarch
// (ugly interface, but hey, that is for testing only special cases only).
const int endness_may_differ = argc > 2 ? atoi(argv[2]) : 0;
const int wordsize_may_differ = argc > 3 ? atoi(argv[3]) : 0;
// Note: if multiarch > VexArch_INVALID, then endness_may_differ
// and wordsize_may_differ are ignored.
// So, here are examples of usage:
// * run only host == guest:
// ./libvexmultiarch_test
// ./libvex_test
// * run all combinations (this will abort very soon :):
// ./libvexmultiarch_test 1 1 1
// * run all combinations that are supposed to work by default :
// ./libvexmultiarch_test 1 0 0
// * run a specific host arch (e.g. 1028 i.e. VexArchARM64)
// ./libvexmultiarch_test 1028
// * show how a single arch VEX lib reports its failure when host != guest
// ./libvex_test 1 0 0
VexArch guest_arch;
VexEndness guest_endness;
VexControl vcon;
VexGuestExtents vge;
VexTranslateArgs vta;
VexTranslateResult vtr;
UChar host_bytes[10000];
Int host_bytes_used;
LibVEX_default_VexControl(&vcon);
LibVEX_Init (failure_exit, log_bytes, 3, &vcon);
get_guest_arch (&guest_arch);
guest_endness = arch_endness (guest_arch);
LibVEX_default_VexArchInfo(&vta.archinfo_guest);
LibVEX_default_VexArchInfo(&vta.archinfo_host);
LibVEX_default_VexAbiInfo (&vta.abiinfo_both);
// Use some values that makes AMD64 happy.
vta.abiinfo_both.guest_stack_redzone_size = 128;
// Prepare first for a translation where guest == host
// We will translate the get_guest_arch function
vta.arch_guest = guest_arch;
vta.archinfo_guest.endness = guest_endness;
vta.archinfo_guest.hwcaps = arch_hwcaps (vta.arch_guest);
vta.arch_host = guest_arch;
vta.archinfo_host.endness = guest_endness;
vta.archinfo_host.hwcaps = arch_hwcaps (vta.arch_host);
vta.callback_opaque = NULL;
vta.guest_bytes = (UChar*) get_guest_arch;
vta.guest_bytes_addr = (Addr) get_guest_arch;
vta.chase_into_ok = return_false;
vta.guest_extents = &vge;
vta.host_bytes = host_bytes;
vta.host_bytes_size = sizeof host_bytes;
vta.host_bytes_used = &host_bytes_used;
vta.instrument1 = NULL;
vta.instrument2 = NULL;
vta.finaltidy = NULL;
vta.needs_self_check = return_0;
vta.preamble_function = NULL;
vta.traceflags = 0xFFFFFFFF;
vta.sigill_diag = False;
vta.addProfInc = False;
vta.disp_cp_chain_me_to_slowEP = failure_dispcalled;
vta.disp_cp_chain_me_to_fastEP = failure_dispcalled;
vta.disp_cp_xindir = failure_dispcalled;
vta.disp_cp_xassisted = failure_dispcalled;
show_vta("host == guest", &vta);
vtr = LibVEX_Translate ( &vta );
if (vtr.status != VexTransOK)
return 1;
// Now, try various combinations, if told to do so:
// host != guest,
// endness(host) != endness(guest) (not well supported)
// wordsize (host) != wordsize (guest) (not well supported)
// The not well supported combinations are not run, unless requested
// explicitely via command line arguments.
if (multiarch) {
VexArch va;
for (va = VexArchX86; va <= VexArchTILEGX; va++) {
vta.arch_host = va;
vta.archinfo_host.endness = arch_endness (vta.arch_host);
vta.archinfo_host.hwcaps = arch_hwcaps (vta.arch_host);
if (arch_endness(va) != arch_endness(guest_arch)
&& !endness_may_differ
&& multiarch != va) {
show_vta("skipped (endness differs)", &vta);
continue;
}
if (mode64(va) != mode64(guest_arch)
&& !wordsize_may_differ
&& multiarch != va) {
show_vta("skipped (word size differs)", &vta);
continue;
}
if (multiarch > VexArch_INVALID
&& multiarch != va) {
show_vta("skipped (!= specific requested arch)", &vta);
continue;
}
show_vta ("doing", &vta);
vtr = LibVEX_Translate ( &vta );
if (vtr.status != VexTransOK)
return 1;
}
}
printf ("//// libvex testing normal exit\n");
return 0;
}
