| // Tests that global tags wrap around successfully after tag 0xff on aarch64 or |
| // 0x3f on x86_64. |
| // RUN: %clang_hwasan %s -o %t |
| // RUN: %run %t 0 |
| |
| #include <stdlib.h> |
| |
| // Create >256 globals to ensure every tag is used. |
| int x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15, x16, |
| x17, x18, x19, x20, x21, x22, x23, x24, x25, x26, x27, x28, x29, x30, x31, |
| x32, x33, x34, x35, x36, x37, x38, x39, x40, x41, x42, x43, x44, x45, x46, |
| x47, x48, x49, x50, x51, x52, x53, x54, x55, x56, x57, x58, x59, x60, x61, |
| x62, x63, x64, x65, x66, x67, x68, x69, x70, x71, x72, x73, x74, x75, x76, |
| x77, x78, x79, x80, x81, x82, x83, x84, x85, x86, x87, x88, x89, x90, x91, |
| x92, x93, x94, x95, x96, x97, x98, x99, x100, x101, x102, x103, x104, x105, |
| x106, x107, x108, x109, x110, x111, x112, x113, x114, x115, x116, x117, |
| x118, x119, x120, x121, x122, x123, x124, x125, x126, x127, x128, x129, |
| x130, x131, x132, x133, x134, x135, x136, x137, x138, x139, x140, x141, |
| x142, x143, x144, x145, x146, x147, x148, x149, x150, x151, x152, x153, |
| x154, x155, x156, x157, x158, x159, x160, x161, x162, x163, x164, x165, |
| x166, x167, x168, x169, x170, x171, x172, x173, x174, x175, x176, x177, |
| x178, x179, x180, x181, x182, x183, x184, x185, x186, x187, x188, x189, |
| x190, x191, x192, x193, x194, x195, x196, x197, x198, x199, x200, x201, |
| x202, x203, x204, x205, x206, x207, x208, x209, x210, x211, x212, x213, |
| x214, x215, x216, x217, x218, x219, x220, x221, x222, x223, x224, x225, |
| x226, x227, x228, x229, x230, x231, x232, x233, x234, x235, x236, x237, |
| x238, x239, x240, x241, x242, x243, x244, x245, x246, x247, x248, x249, |
| x250, x251, x252, x253, x254, x255, x256; |
| |
| int main(int argc, char **argv) { |
| int i = atoi(argv[1]); |
| |
| // Write to every global to make sure tags match even after wrapping around |
| // to 0. |
| (&x0)[i] = 1; |
| (&x1)[i] = 1; |
| (&x2)[i] = 1; |
| (&x3)[i] = 1; |
| (&x4)[i] = 1; |
| (&x5)[i] = 1; |
| (&x6)[i] = 1; |
| (&x7)[i] = 1; |
| (&x8)[i] = 1; |
| (&x9)[i] = 1; |
| (&x10)[i] = 1; |
| (&x11)[i] = 1; |
| (&x12)[i] = 1; |
| (&x13)[i] = 1; |
| (&x14)[i] = 1; |
| (&x15)[i] = 1; |
| (&x16)[i] = 1; |
| (&x17)[i] = 1; |
| (&x18)[i] = 1; |
| (&x19)[i] = 1; |
| (&x20)[i] = 1; |
| (&x21)[i] = 1; |
| (&x22)[i] = 1; |
| (&x23)[i] = 1; |
| (&x24)[i] = 1; |
| (&x25)[i] = 1; |
| (&x26)[i] = 1; |
| (&x27)[i] = 1; |
| (&x28)[i] = 1; |
| (&x29)[i] = 1; |
| (&x30)[i] = 1; |
| (&x31)[i] = 1; |
| (&x32)[i] = 1; |
| (&x33)[i] = 1; |
| (&x34)[i] = 1; |
| (&x35)[i] = 1; |
| (&x36)[i] = 1; |
| (&x37)[i] = 1; |
| (&x38)[i] = 1; |
| (&x39)[i] = 1; |
| (&x40)[i] = 1; |
| (&x41)[i] = 1; |
| (&x42)[i] = 1; |
| (&x43)[i] = 1; |
| (&x44)[i] = 1; |
| (&x45)[i] = 1; |
| (&x46)[i] = 1; |
| (&x47)[i] = 1; |
| (&x48)[i] = 1; |
| (&x49)[i] = 1; |
| (&x50)[i] = 1; |
| (&x51)[i] = 1; |
| (&x52)[i] = 1; |
| (&x53)[i] = 1; |
| (&x54)[i] = 1; |
| (&x55)[i] = 1; |
| (&x56)[i] = 1; |
| (&x57)[i] = 1; |
| (&x58)[i] = 1; |
| (&x59)[i] = 1; |
| (&x60)[i] = 1; |
| (&x61)[i] = 1; |
| (&x62)[i] = 1; |
| (&x63)[i] = 1; |
| (&x64)[i] = 1; |
| (&x65)[i] = 1; |
| (&x66)[i] = 1; |
| (&x67)[i] = 1; |
| (&x68)[i] = 1; |
| (&x69)[i] = 1; |
| (&x70)[i] = 1; |
| (&x71)[i] = 1; |
| (&x72)[i] = 1; |
| (&x73)[i] = 1; |
| (&x74)[i] = 1; |
| (&x75)[i] = 1; |
| (&x76)[i] = 1; |
| (&x77)[i] = 1; |
| (&x78)[i] = 1; |
| (&x79)[i] = 1; |
| (&x80)[i] = 1; |
| (&x81)[i] = 1; |
| (&x82)[i] = 1; |
| (&x83)[i] = 1; |
| (&x84)[i] = 1; |
| (&x85)[i] = 1; |
| (&x86)[i] = 1; |
| (&x87)[i] = 1; |
| (&x88)[i] = 1; |
| (&x89)[i] = 1; |
| (&x90)[i] = 1; |
| (&x91)[i] = 1; |
| (&x92)[i] = 1; |
| (&x93)[i] = 1; |
| (&x94)[i] = 1; |
| (&x95)[i] = 1; |
| (&x96)[i] = 1; |
| (&x97)[i] = 1; |
| (&x98)[i] = 1; |
| (&x99)[i] = 1; |
| (&x100)[i] = 1; |
| (&x101)[i] = 1; |
| (&x102)[i] = 1; |
| (&x103)[i] = 1; |
| (&x104)[i] = 1; |
| (&x105)[i] = 1; |
| (&x106)[i] = 1; |
| (&x107)[i] = 1; |
| (&x108)[i] = 1; |
| (&x109)[i] = 1; |
| (&x110)[i] = 1; |
| (&x111)[i] = 1; |
| (&x112)[i] = 1; |
| (&x113)[i] = 1; |
| (&x114)[i] = 1; |
| (&x115)[i] = 1; |
| (&x116)[i] = 1; |
| (&x117)[i] = 1; |
| (&x118)[i] = 1; |
| (&x119)[i] = 1; |
| (&x120)[i] = 1; |
| (&x121)[i] = 1; |
| (&x122)[i] = 1; |
| (&x123)[i] = 1; |
| (&x124)[i] = 1; |
| (&x125)[i] = 1; |
| (&x126)[i] = 1; |
| (&x127)[i] = 1; |
| (&x128)[i] = 1; |
| (&x129)[i] = 1; |
| (&x130)[i] = 1; |
| (&x131)[i] = 1; |
| (&x132)[i] = 1; |
| (&x133)[i] = 1; |
| (&x134)[i] = 1; |
| (&x135)[i] = 1; |
| (&x136)[i] = 1; |
| (&x137)[i] = 1; |
| (&x138)[i] = 1; |
| (&x139)[i] = 1; |
| (&x140)[i] = 1; |
| (&x141)[i] = 1; |
| (&x142)[i] = 1; |
| (&x143)[i] = 1; |
| (&x144)[i] = 1; |
| (&x145)[i] = 1; |
| (&x146)[i] = 1; |
| (&x147)[i] = 1; |
| (&x148)[i] = 1; |
| (&x149)[i] = 1; |
| (&x150)[i] = 1; |
| (&x151)[i] = 1; |
| (&x152)[i] = 1; |
| (&x153)[i] = 1; |
| (&x154)[i] = 1; |
| (&x155)[i] = 1; |
| (&x156)[i] = 1; |
| (&x157)[i] = 1; |
| (&x158)[i] = 1; |
| (&x159)[i] = 1; |
| (&x160)[i] = 1; |
| (&x161)[i] = 1; |
| (&x162)[i] = 1; |
| (&x163)[i] = 1; |
| (&x164)[i] = 1; |
| (&x165)[i] = 1; |
| (&x166)[i] = 1; |
| (&x167)[i] = 1; |
| (&x168)[i] = 1; |
| (&x169)[i] = 1; |
| (&x170)[i] = 1; |
| (&x171)[i] = 1; |
| (&x172)[i] = 1; |
| (&x173)[i] = 1; |
| (&x174)[i] = 1; |
| (&x175)[i] = 1; |
| (&x176)[i] = 1; |
| (&x177)[i] = 1; |
| (&x178)[i] = 1; |
| (&x179)[i] = 1; |
| (&x180)[i] = 1; |
| (&x181)[i] = 1; |
| (&x182)[i] = 1; |
| (&x183)[i] = 1; |
| (&x184)[i] = 1; |
| (&x185)[i] = 1; |
| (&x186)[i] = 1; |
| (&x187)[i] = 1; |
| (&x188)[i] = 1; |
| (&x189)[i] = 1; |
| (&x190)[i] = 1; |
| (&x191)[i] = 1; |
| (&x192)[i] = 1; |
| (&x193)[i] = 1; |
| (&x194)[i] = 1; |
| (&x195)[i] = 1; |
| (&x196)[i] = 1; |
| (&x197)[i] = 1; |
| (&x198)[i] = 1; |
| (&x199)[i] = 1; |
| (&x200)[i] = 1; |
| (&x201)[i] = 1; |
| (&x202)[i] = 1; |
| (&x203)[i] = 1; |
| (&x204)[i] = 1; |
| (&x205)[i] = 1; |
| (&x206)[i] = 1; |
| (&x207)[i] = 1; |
| (&x208)[i] = 1; |
| (&x209)[i] = 1; |
| (&x210)[i] = 1; |
| (&x211)[i] = 1; |
| (&x212)[i] = 1; |
| (&x213)[i] = 1; |
| (&x214)[i] = 1; |
| (&x215)[i] = 1; |
| (&x216)[i] = 1; |
| (&x217)[i] = 1; |
| (&x218)[i] = 1; |
| (&x219)[i] = 1; |
| (&x220)[i] = 1; |
| (&x221)[i] = 1; |
| (&x222)[i] = 1; |
| (&x223)[i] = 1; |
| (&x224)[i] = 1; |
| (&x225)[i] = 1; |
| (&x226)[i] = 1; |
| (&x227)[i] = 1; |
| (&x228)[i] = 1; |
| (&x229)[i] = 1; |
| (&x230)[i] = 1; |
| (&x231)[i] = 1; |
| (&x232)[i] = 1; |
| (&x233)[i] = 1; |
| (&x234)[i] = 1; |
| (&x235)[i] = 1; |
| (&x236)[i] = 1; |
| (&x237)[i] = 1; |
| (&x238)[i] = 1; |
| (&x239)[i] = 1; |
| (&x240)[i] = 1; |
| (&x241)[i] = 1; |
| (&x242)[i] = 1; |
| (&x243)[i] = 1; |
| (&x244)[i] = 1; |
| (&x245)[i] = 1; |
| (&x246)[i] = 1; |
| (&x247)[i] = 1; |
| (&x248)[i] = 1; |
| (&x249)[i] = 1; |
| (&x250)[i] = 1; |
| (&x251)[i] = 1; |
| (&x252)[i] = 1; |
| (&x253)[i] = 1; |
| (&x254)[i] = 1; |
| (&x255)[i] = 1; |
| (&x256)[i] = 1; |
| |
| return 0; |
| } |