1 // FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
3 // XFAIL: target=mips{{.*}}
5 // RUN: %clangxx_asan -O0 %s -o %t && %run %t
6 // RUN: %clangxx_asan -DPOSITIVE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
10 #include <sys/ptrace.h>
11 #include <sys/types.h>
15 #include <sys/uio.h> // for iovec
16 #include <elf.h> // for NT_PRSTATUS
17 #if defined(__aarch64__) || defined(__loongarch__)
18 # include <asm/ptrace.h>
21 #if defined(__i386__) || defined(__x86_64__)
22 typedef user_regs_struct regs_struct
;
23 typedef user_fpregs_struct fpregs_struct
;
29 #define PRINT_REG_PC(__regs) printf ("%lx\n", (unsigned long) (__regs.REG_IP))
30 #define PRINT_REG_FP(__fpregs) printf ("%lx\n", (unsigned long) (__fpregs.cwd))
31 #define __PTRACE_FPREQUEST PTRACE_GETFPREGS
33 #elif defined(__aarch64__)
34 typedef struct user_pt_regs regs_struct
;
35 typedef struct user_fpsimd_state fpregs_struct
;
36 #define PRINT_REG_PC(__regs) printf ("%x\n", (unsigned) (__regs.pc))
37 #define PRINT_REG_FP(__fpregs) printf ("%x\n", (unsigned) (__fpregs.fpsr))
38 #define ARCH_IOVEC_FOR_GETREGSET
40 #elif defined(__loongarch__)
41 typedef struct user_pt_regs regs_struct
;
42 typedef struct user_fp_state fpregs_struct
;
43 # define PRINT_REG_PC(__regs) printf("%lx\n", (unsigned long)(__regs.csr_era))
44 # define PRINT_REG_FP(__fpregs) printf("%x\n", (unsigned)(__fpregs.fcsr))
45 # define ARCH_IOVEC_FOR_GETREGSET
47 #elif defined(__powerpc64__)
48 typedef struct pt_regs regs_struct
;
49 typedef elf_fpregset_t fpregs_struct
;
50 #define PRINT_REG_PC(__regs) printf ("%lx\n", (unsigned long) (__regs.nip))
51 #define PRINT_REG_FP(__fpregs) printf ("%lx\n", (elf_greg_t)fpregs[32])
52 #define ARCH_IOVEC_FOR_GETREGSET
54 #elif defined(__mips__)
55 typedef struct pt_regs regs_struct
;
56 typedef elf_fpregset_t fpregs_struct
;
57 #define PRINT_REG_PC(__regs) printf ("%lx\n", (unsigned long) (__regs.cp0_epc))
58 #define PRINT_REG_FP(__fpregs) printf ("%lx\n", (elf_greg_t) (__fpregs[32]))
59 #define __PTRACE_FPREQUEST PTRACE_GETFPREGS
61 #elif defined(__arm__)
62 # include <asm/ptrace.h>
63 # include <sys/procfs.h>
64 typedef struct pt_regs regs_struct
;
65 typedef char fpregs_struct
[ARM_VFPREGS_SIZE
];
66 #define PRINT_REG_PC(__regs) printf ("%x\n", (unsigned) (__regs.ARM_pc))
67 #define PRINT_REG_FP(__fpregs) printf ("%x\n", (unsigned) (__fpregs + 32 * 8))
68 #define __PTRACE_FPREQUEST PTRACE_GETVFPREGS
70 #elif defined(__s390__)
71 typedef _user_regs_struct regs_struct
;
72 typedef _user_fpregs_struct fpregs_struct
;
73 #define PRINT_REG_PC(__regs) printf ("%lx\n", (unsigned long) (__regs.psw.addr))
74 #define PRINT_REG_FP(__fpregs) printf ("%lx\n", (unsigned long) (__fpregs.fpc))
75 #define ARCH_IOVEC_FOR_GETREGSET
77 #elif defined(__riscv) && (__riscv_xlen == 64)
78 #include <asm/ptrace.h>
79 typedef user_regs_struct regs_struct
;
80 typedef __riscv_q_ext_state fpregs_struct
;
81 #define PRINT_REG_PC(__regs) printf("%lx\n", (unsigned long)(__regs.pc))
82 #define PRINT_REG_FP(__fpregs) printf("%lx\n", (unsigned long)(__fpregs.fcsr))
83 #define ARCH_IOVEC_FOR_GETREGSET
85 #elif defined(__sparc__)
86 typedef sunos_regs regs_struct
;
87 typedef sunos_fp fpregs_struct
;
88 # define PRINT_REG_PC(__regs) printf("%x\n", (unsigned)(__regs.pc))
89 # define PRINT_REG_FP(__fpregs) printf("%x\n", (unsigned)(__fpregs.fsr))
90 # define __PTRACE_FPREQUEST PTRACE_GETFPREGS
97 if (pid
== 0) { // child
98 ptrace(PTRACE_TRACEME
, 0, NULL
, NULL
);
99 execl("/bin/true", "true", NULL
);
103 regs_struct
* volatile pregs
= ®s
;
104 #ifdef ARCH_IOVEC_FOR_GETREGSET
105 struct iovec regset_io
;
113 #ifdef ARCH_IOVEC_FOR_GETREGSET
114 # define __PTRACE_REQUEST PTRACE_GETREGSET
115 # define __PTRACE_ARGS (void*)NT_PRSTATUS, (void*)®set_io
116 regset_io
.iov_base
= pregs
;
117 regset_io
.iov_len
= sizeof(regs_struct
);
119 # define __PTRACE_REQUEST PTRACE_GETREGS
121 // The meanings of addr and data are reversed for a few requests on
123 # define __PTRACE_ARGS pregs, NULL
125 # define __PTRACE_ARGS NULL, pregs
128 res
= ptrace((enum __ptrace_request
)__PTRACE_REQUEST
, pid
, __PTRACE_ARGS
);
129 // CHECK: AddressSanitizer: stack-buffer-overflow
130 // CHECK: {{.*ptrace.cpp:}}[[@LINE-2]]
134 fpregs_struct fpregs
;
135 #ifdef ARCH_IOVEC_FOR_GETREGSET
136 # define __PTRACE_FPREQUEST PTRACE_GETREGSET
137 # define __PTRACE_FPARGS (void*)NT_PRSTATUS, (void*)®set_io
138 regset_io
.iov_base
= &fpregs
;
139 regset_io
.iov_len
= sizeof(fpregs_struct
);
140 res
= ptrace((enum __ptrace_request
)PTRACE_GETREGSET
, pid
, (void*)NT_FPREGSET
,
143 // The meanings of addr and data are reversed for a few requests on
146 # define __PTRACE_FPARGS &fpregs, NULL
148 # define __PTRACE_FPARGS NULL, &fpregs
151 res
= ptrace((enum __ptrace_request
)__PTRACE_FPREQUEST
, pid
, __PTRACE_FPARGS
);
153 PRINT_REG_FP(fpregs
);
156 user_fpxregs_struct fpxregs
;
157 res
= ptrace(PTRACE_GETFPXREGS
, pid
, NULL
, &fpxregs
);
159 printf("%lx\n", (unsigned long)fpxregs
.mxcsr
);
162 ptrace(PTRACE_CONT
, pid
, NULL
, NULL
);