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1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Ptrace test for GPR/FPR registers
5 * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
8 #include "ptrace-gpr.h"
11 /* Tracer and Tracee Shared Data */
21 unsigned long gpr_buf
[18];
24 cptr
= (int *)shmat(shm_id
, NULL
, 0);
27 ASM_LOAD_GPR_IMMED(gpr_1
)
28 ASM_LOAD_FPR_SINGLE_PRECISION(flt_1
)
30 : [gpr_1
]"i"(GPR_1
), [flt_1
] "b" (&a
)
31 : "memory", "r6", "r7", "r8", "r9", "r10",
32 "r11", "r12", "r13", "r14", "r15", "r16", "r17",
33 "r18", "r19", "r20", "r21", "r22", "r23", "r24",
34 "r25", "r26", "r27", "r28", "r29", "r30", "r31"
40 asm volatile("" : : : "memory");
44 store_fpr_single_precision(fpr_buf
);
46 if (validate_gpr(gpr_buf
, GPR_3
))
49 if (validate_fpr_float(fpr_buf
, c
))
55 int trace_gpr(pid_t child
)
57 unsigned long gpr
[18];
58 unsigned long fpr
[32];
60 FAIL_IF(start_trace(child
));
61 FAIL_IF(show_gpr(child
, gpr
));
62 FAIL_IF(validate_gpr(gpr
, GPR_1
));
63 FAIL_IF(show_fpr(child
, fpr
));
64 FAIL_IF(validate_fpr(fpr
, FPR_1_REP
));
65 FAIL_IF(write_gpr(child
, GPR_3
));
66 FAIL_IF(write_fpr(child
, FPR_3_REP
));
67 FAIL_IF(stop_trace(child
));
77 shm_id
= shmget(IPC_PRIVATE
, sizeof(int) * 2, 0777|IPC_CREAT
);
80 perror("fork() failed");
87 pptr
= (int *)shmat(shm_id
, NULL
, 0);
89 asm volatile("" : : : "memory");
95 shmctl(shm_id
, IPC_RMID
, NULL
);
103 shmctl(shm_id
, IPC_RMID
, NULL
);
105 printf("Child's exit status not captured\n");
109 return (WIFEXITED(status
) && WEXITSTATUS(status
)) ? TEST_FAIL
:
116 int main(int argc
, char *argv
[])
118 return test_harness(ptrace_gpr
, "ptrace_gpr");