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Searched refs:child (Results 1 – 25 of 743) sorted by relevance

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/linux/arch/powerpc/kernel/ptrace/
H A Dptrace-adv.c74 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, in ptrace_get_debugreg() argument
80 return put_user(child->thread.debug.dac1, datalp); in ptrace_get_debugreg()
140 static long set_instruction_bp(struct task_struct *child, in set_instruction_bp() argument
144 int slot1_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC1) != 0); in set_instruction_bp()
145 int slot2_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC2) != 0); in set_instruction_bp()
146 int slot3_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC3) != 0); in set_instruction_bp()
147 int slot4_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC4) != 0); in set_instruction_bp()
149 if (dbcr_iac_range(child) & DBCR_IAC12MODE) in set_instruction_bp()
151 if (dbcr_iac_range(child) & DBCR_IAC34MODE) in set_instruction_bp()
165 child->thread.debug.iac1 = bp_info->addr; in set_instruction_bp()
[all …]
H A Dptrace32.c38 long compat_arch_ptrace(struct task_struct *child, compat_long_t request, in compat_arch_ptrace() argument
67 copied = ptrace_access_vm(child, (u64)addrOthers, &tmp, in compat_arch_ptrace()
87 ret = ptrace_get_reg(child, index, &tmp); in compat_arch_ptrace()
91 flush_fp_to_thread(child); in compat_arch_ptrace()
97 tmp = ((unsigned int *)child->thread.fp_state.fpr) in compat_arch_ptrace()
136 flush_fp_to_thread(child); in compat_arch_ptrace()
138 tmp = child->thread.fp_state.fpr[numReg - PT_FPR0][0]; in compat_arch_ptrace()
141 ret = ptrace_get_reg(child, numReg, &tmp2); in compat_arch_ptrace()
170 if (ptrace_access_vm(child, (u64)addrOthers, &tmp, in compat_arch_ptrace()
189 ret = ptrace_put_reg(child, index, data); in compat_arch_ptrace()
[all …]
H A Dptrace.c31 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
34 user_disable_single_step(child); in ptrace_disable()
37 long arch_ptrace(struct task_struct *child, long request, in arch_ptrace() argument
52 if ((addr & (sizeof(long) - 1)) || !child->thread.regs) in arch_ptrace()
56 ret = ptrace_get_reg(child, (int) index, &tmp); in arch_ptrace()
58 ret = ptrace_get_fpr(child, index, &tmp); in arch_ptrace()
73 if ((addr & (sizeof(long) - 1)) || !child->thread.regs) in arch_ptrace()
77 ret = ptrace_put_reg(child, index, data); in arch_ptrace()
79 ret = ptrace_put_fpr(child, index, data); in arch_ptrace()
100 return ppc_set_hwdebug(child, &bp_info); in arch_ptrace()
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H A Dptrace-fpu.c9 int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data) in ptrace_get_fpr() argument
19 flush_fp_to_thread(child); in ptrace_get_fpr()
23 *data = ((u32 *)child->thread.fp_state.fpr)[fpidx]; in ptrace_get_fpr()
25 memcpy(data, &child->thread.TS_FPR(fpidx), sizeof(long)); in ptrace_get_fpr()
27 *data = child->thread.fp_state.fpscr; in ptrace_get_fpr()
35 int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data) in ptrace_put_fpr() argument
45 flush_fp_to_thread(child); in ptrace_put_fpr()
49 ((u32 *)child->thread.fp_state.fpr)[fpidx] = data; in ptrace_put_fpr()
51 memcpy(&child->thread.TS_FPR(fpidx), &data, sizeof(long)); in ptrace_put_fpr()
53 child->thread.fp_state.fpscr = data; in ptrace_put_fpr()
/linux/arch/x86/kernel/
H A Dstep.c14 unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs) in convert_ip_to_linear() argument
38 mutex_lock(&child->mm->context.lock); in convert_ip_to_linear()
39 if (unlikely(!child->mm->context.ldt || in convert_ip_to_linear()
40 seg >= child->mm->context.ldt->nr_entries)) in convert_ip_to_linear()
43 desc = &child->mm->context.ldt->entries[seg]; in convert_ip_to_linear()
51 mutex_unlock(&child->mm->context.lock); in convert_ip_to_linear()
58 static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) in is_setting_trap_flag() argument
62 unsigned long addr = convert_ip_to_linear(child, regs); in is_setting_trap_flag()
64 copied = access_process_vm(child, addr, opcode, sizeof(opcode), in is_setting_trap_flag()
113 static int enable_single_step(struct task_struct *child) in enable_single_step() argument
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H A Dptrace.c374 static int putreg(struct task_struct *child, in putreg() argument
384 return set_segment_reg(child, offset, value); in putreg()
387 return set_flags(child, value); in putreg()
393 x86_fsbase_write_task(child, value); in putreg()
398 x86_gsbase_write_task(child, value); in putreg()
403 *pt_regs_access(task_pt_regs(child), offset) = value; in putreg()
718 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
720 user_disable_single_step(child); in ptrace_disable()
730 long arch_ptrace(struct task_struct *child, long request, in arch_ptrace() argument
755 tmp = getreg(child, addr); in arch_ptrace()
[all …]
/linux/tools/testing/selftests/arm64/fp/
H A Dfp-stress.c63 static void child_start(struct child_data *child, const char *program) in child_start() argument
73 child->pid = fork(); in child_start()
74 if (child->pid == -1) in child_start()
78 if (!child->pid) { in child_start()
130 child->stdout = pipefd[0]; in child_start()
131 child->output = NULL; in child_start()
132 child->exited = false; in child_start()
133 child->output_seen = false; in child_start()
136 ev.data.ptr = child; in child_start()
138 ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, child->stdout, &ev); in child_start()
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H A Dsve-ptrace.c178 static void read_fails(pid_t child, const struct vec_type *type) in read_fails() argument
184 ret = get_sve(child, type, (void **)&new_sve, &new_sve_size); in read_fails()
193 static void write_fails(pid_t child, const struct vec_type *type) in write_fails() argument
203 ret = set_sve(child, type, &sve); in write_fails()
210 static void ptrace_set_get_inherit(pid_t child, const struct vec_type *type) in ptrace_set_get_inherit() argument
222 ret = set_sve(child, type, &sve); in ptrace_set_get_inherit()
233 if (!get_sve(child, type, (void **)&new_sve, &new_sve_size)) { in ptrace_set_get_inherit()
244 ret = set_sve(child, type, &sve); in ptrace_set_get_inherit()
251 if (!get_sve(child, type, (void **)&new_sve, &new_sve_size)) { in ptrace_set_get_inherit()
264 static void ptrace_set_get_vl(pid_t child, const struct vec_type *type, in ptrace_set_get_vl() argument
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H A Dzt-ptrace.c121 static void ptrace_za_disabled_read_zt(pid_t child) in ptrace_za_disabled_read_zt() argument
133 ret = set_za(child, &za); in ptrace_za_disabled_read_zt()
140 ret = get_zt(child, zt); in ptrace_za_disabled_read_zt()
157 static void ptrace_set_get_zt(pid_t child) in ptrace_set_get_zt() argument
166 ret = set_zt(child, zt_in); in ptrace_set_get_zt()
172 ret = get_zt(child, zt_out); in ptrace_set_get_zt()
190 static void ptrace_enable_za_via_zt(pid_t child) in ptrace_enable_za_via_zt() argument
205 ret = set_za(child, &za_in); in ptrace_enable_za_via_zt()
213 ret = set_zt(child, zt); in ptrace_enable_za_via_zt()
222 if (get_za(child, (void **)&za_out, &za_out_size)) { in ptrace_enable_za_via_zt()
[all …]
/linux/tools/testing/selftests/arm64/gcs/
H A Dgcs-stress.c59 static void start_thread(struct child_data *child, int id) in start_thread() argument
69 child->pid = fork(); in start_thread()
70 if (child->pid == -1) in start_thread()
74 if (!child->pid) { in start_thread()
127 child->stdout = pipefd[0]; in start_thread()
128 child->output = NULL; in start_thread()
129 child->exited = false; in start_thread()
130 child->output_seen = false; in start_thread()
133 ev.data.ptr = child; in start_thread()
135 ret = asprintf(&child->name, "Thread-%d", id); in start_thread()
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/linux/tools/testing/selftests/powerpc/ptrace/
H A Dptrace.h64 int start_trace(pid_t child) in start_trace() argument
68 ret = ptrace(PTRACE_ATTACH, child, NULL, NULL); in start_trace()
73 ret = waitpid(child, NULL, 0); in start_trace()
74 if (ret != child) { in start_trace()
81 int stop_trace(pid_t child) in stop_trace() argument
85 ret = ptrace(PTRACE_DETACH, child, NULL, NULL); in stop_trace()
93 int cont_trace(pid_t child) in cont_trace() argument
97 ret = ptrace(PTRACE_CONT, child, NULL, NULL); in cont_trace()
105 int ptrace_read_regs(pid_t child, unsigned long type, unsigned long regs[], in ptrace_read_regs() argument
111 FAIL_IF(start_trace(child)); in ptrace_read_regs()
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/linux/arch/mips/kernel/
H A Dptrace32.c43 long compat_arch_ptrace(struct task_struct *child, compat_long_t request, in compat_arch_ptrace() argument
73 copied = ptrace_access_vm(child, (u64)addrOthers, &tmp, in compat_arch_ptrace()
86 regs = task_pt_regs(child); in compat_arch_ptrace()
97 if (!tsk_used_math(child)) { in compat_arch_ptrace()
102 fregs = get_fpu_regs(child); in compat_arch_ptrace()
103 if (test_tsk_thread_flag(child, TIF_32BIT_FPREGS)) { in compat_arch_ptrace()
117 tmp = child->thread.fpu.fcr31; in compat_arch_ptrace()
147 dregs = __get_dsp_regs(child); in compat_arch_ptrace()
157 tmp = child->thread.dsp.dspcontrol; in compat_arch_ptrace()
186 if (ptrace_access_vm(child, (u64)addrOthers, &data, in compat_arch_ptrace()
[all …]
/linux/tools/perf/arch/x86/tests/
H A Dbp-modify.c32 int child = fork(); in spawn_child() local
34 if (child == 0) { in spawn_child()
52 return child; in spawn_child()
61 pid_t child; in bp_modify1() local
65 child = spawn_child(); in bp_modify1()
67 waitpid(child, &status, 0); in bp_modify1()
81 if (ptrace(PTRACE_POKEUSER, child, in bp_modify1()
87 if (ptrace(PTRACE_POKEUSER, child, in bp_modify1()
93 if (ptrace(PTRACE_POKEUSER, child, in bp_modify1()
99 if (ptrace(PTRACE_CONT, child, NULL, NULL)) { in bp_modify1()
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/linux/tools/testing/selftests/bpf/prog_tests/
H A Duprobe_multi_test.c49 struct child {
51 int c2p[2]; /* child -> parent channel */
58 static void release_child(struct child *child) in release_child()
62 if (!child) in release_child()
64 close(child->go[1]); in release_child()
65 close(child->go[0]); in release_child()
66 if (child->thread) { in release_child()
67 pthread_join(child->thread, NULL); in release_child()
68 child in release_child()
48 struct child { global() struct
50 c2pchild global() argument
57 release_child(struct child * child) release_child() argument
75 kick_child(struct child * child) kick_child() argument
88 struct child *child = arg; child_func() local
106 spawn_child_flag(struct child * child,bool clone_vm) spawn_child_flag() argument
131 spawn_child(struct child * child) spawn_child() argument
138 struct child *child = ctx; child_thread() local
162 spawn_thread(struct child * child) spawn_thread() argument
196 uprobe_multi_test_run(struct uprobe_multi * skel,struct child * child) uprobe_multi_test_run() argument
270 __test_attach_api(const char * binary,const char * pattern,struct bpf_uprobe_multi_opts * opts,struct child * child) __test_attach_api() argument
334 static struct child child; test_attach_api() local
663 __test_link_api(struct child * child) __test_link_api() argument
742 static struct child child; test_link_api() local
1077 struct child child[TASKS] = {}; run_pid_filter() local
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/linux/arch/x86/um/
H A Dptrace_32.c52 int putreg(struct task_struct *child, int regno, unsigned long value) in putreg()
68 UPT_SYSCALL_NR(&child->thread.regs.regs) = value; in putreg()
92 child->thread.regs.regs.gp[HOST_EFLAGS] |= value; in putreg()
97 child->thread.regs.regs.gp[reg_offsets[regno]] = value; in putreg()
101 int poke_user(struct task_struct *child, long addr, long data) in poke_user()
107 return putreg(child, addr, data); in poke_user()
114 child->thread.arch.debugregs[addr] = data; in poke_user()
120 unsigned long getreg(struct task_struct *child, int regno) in getreg()
149 return mask & child->thread.regs.regs.gp[reg_offsets[regno]]; in getreg()
153 int peek_user(struct task_struct *child, lon in peek_user()
51 putreg(struct task_struct * child,int regno,unsigned long value) putreg() argument
100 poke_user(struct task_struct * child,long addr,long data) poke_user() argument
119 getreg(struct task_struct * child,int regno) getreg() argument
152 peek_user(struct task_struct * child,long addr,long data) peek_user() argument
172 subarch_ptrace(struct task_struct * child,long request,unsigned long addr,unsigned long data) subarch_ptrace() argument
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H A Dptrace_64.c55 int putreg(struct task_struct *child, int regno, unsigned long value) in putreg() argument
79 UPT_SYSCALL_NR(&child->thread.regs.regs) = value; in putreg()
101 child->thread.regs.regs.gp[HOST_EFLAGS] |= value; in putreg()
108 child->thread.regs.regs.gp[reg_offsets[regno >> 3]] = value; in putreg()
112 int poke_user(struct task_struct *child, long addr, long data) in poke_user() argument
118 return putreg(child, addr, data); in poke_user()
125 child->thread.arch.debugregs[addr] = data; in poke_user()
131 unsigned long getreg(struct task_struct *child, int regno) in getreg() argument
169 return mask & child->thread.regs.regs.gp[reg_offsets[regno >> 3]]; in getreg()
172 int peek_user(struct task_struct *child, long addr, long data) in peek_user() argument
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/linux/tools/testing/selftests/ptrace/
H A Dpeeksiginfo.c44 static int check_error_paths(pid_t child) in check_error_paths() argument
73 ret = sys_ptrace(PTRACE_PEEKSIGINFO, child, &arg, addr_rw); in check_error_paths()
83 ret = sys_ptrace(PTRACE_PEEKSIGINFO, child, &arg, in check_error_paths()
91 ret = sys_ptrace(PTRACE_PEEKSIGINFO, child, &arg, addr_ro); in check_error_paths()
105 int check_direct_path(pid_t child, int shared, int nr) in check_direct_path() argument
122 ret = sys_ptrace(PTRACE_PEEKSIGINFO, child, &arg, siginfo); in check_direct_path()
157 pid_t child; in main() local
163 child = fork(); in main()
164 if (child == -1) { in main()
167 } else if (child == 0) { in main()
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/linux/tools/testing/selftests/arm64/abi/
H A Dptrace.c32 static void test_tpidr(pid_t child) in test_tpidr() argument
45 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov); in test_tpidr()
51 ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov); in test_tpidr()
55 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov); in test_tpidr()
61 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov); in test_tpidr()
82 ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov); in test_tpidr()
90 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov); in test_tpidr()
112 ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov); in test_tpidr()
117 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, in test_tpidr()
135 static void test_hw_debug(pid_t child, int type, const char *type_name) in test_hw_debug() argument
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/linux/tools/testing/selftests/cgroup/
H A Dtest_core.c287 char *grandparent = NULL, *parent = NULL, *child = NULL; in test_cgcore_invalid_domain() local
294 child = cg_name(root, "cg_test_grandparent/cg_test_parent/cg_test_child"); in test_cgcore_invalid_domain()
295 if (!parent || !child || !grandparent) in test_cgcore_invalid_domain()
304 if (cg_create(child)) in test_cgcore_invalid_domain()
310 if (cg_read_strcmp(child, "cgroup.type", "domain invalid\n")) in test_cgcore_invalid_domain()
313 if (!cg_enter_current(child)) in test_cgcore_invalid_domain()
319 if (!clone_into_cgroup_run_wait(child)) in test_cgcore_invalid_domain()
333 if (child) in test_cgcore_invalid_domain()
334 cg_destroy(child); in test_cgcore_invalid_domain()
339 free(child); in test_cgcore_invalid_domain()
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/linux/tools/testing/selftests/riscv/vector/
H A Dvstate_ptrace.c50 static void do_parent(pid_t child) in do_parent() argument
56 while (waitpid(child, &status, 0)) { in do_parent()
72 if (do_ptrace(PTRACE_GETREGSET, child, NT_RISCV_VECTOR, size, data)) in do_parent()
83 if (do_ptrace(PTRACE_GETREGSET, child, NT_RISCV_VECTOR, size, data)) in do_parent()
89 if (do_ptrace(PTRACE_SETREGSET, child, NT_RISCV_VECTOR, size, data)) in do_parent()
97 if (do_ptrace(PTRACE_GETREGSET, child, NT_PRSTATUS, size, data)) in do_parent()
101 if (do_ptrace(PTRACE_SETREGSET, child, NT_PRSTATUS, size, data)) in do_parent()
105 ptrace(PTRACE_CONT, child, NULL, NULL); in do_parent()
114 pid_t child; in main() local
124 child = fork(); in main()
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/linux/tools/testing/selftests/x86/
H A Dint_signal.c142 static void wait_for_child(pid_t child, int *status) in wait_for_child() argument
147 ret = waitpid(child, status, 0); in wait_for_child()
149 if (ret != child) in wait_for_child()
154 static bool resume_to(pid_t child, int *status, int request, int sig, in resume_to() argument
159 if (ptrace(request, child, 0, 0)) in resume_to()
161 wait_for_child(child, status); in resume_to()
171 if (ptrace(PTRACE_GETREGS, child, 0, &regs)) in resume_to()
181 static bool set_ip(pid_t child, const void *ip, bool tf) in set_ip() argument
185 if (ptrace(PTRACE_GETREGS, child, 0, &regs)) in set_ip()
190 return !ptrace(PTRACE_SETREGS, child, 0, &regs); in set_ip()
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/linux/drivers/scsi/libsas/
H A Dsas_expander.c749 struct domain_device *child, in sas_ex_get_linkrate() argument
756 child->pathways = 0; in sas_ex_get_linkrate()
767 if (sas_phy_match_dev_addr(child, phy)) { in sas_ex_get_linkrate()
768 child->min_linkrate = min(parent->min_linkrate, in sas_ex_get_linkrate()
770 child->max_linkrate = max(parent->max_linkrate, in sas_ex_get_linkrate()
772 child->pathways++; in sas_ex_get_linkrate()
776 child->linkrate = min(parent_phy->linkrate, child->max_linkrate); in sas_ex_get_linkrate()
777 child->pathways = min(child->pathways, parent->pathways); in sas_ex_get_linkrate()
781 struct domain_device *child, int phy_id) in sas_ex_add_dev() argument
786 child->dev_type = SAS_END_DEVICE; in sas_ex_add_dev()
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/linux/drivers/pci/pwrctrl/
H A Dcore.c199 for_each_available_child_of_node_scoped(np, child) in pci_pwrctrl_power_off_device()
200 pci_pwrctrl_power_off_device(child); in pci_pwrctrl_power_off_device()
233 for_each_available_child_of_node_scoped(np, child) in pci_pwrctrl_power_off_devices()
234 pci_pwrctrl_power_off_device(child); in pci_pwrctrl_power_off_devices()
257 for_each_available_child_of_node_scoped(np, child) { in pci_pwrctrl_power_on_device()
258 ret = pci_pwrctrl_power_on_device(child); in pci_pwrctrl_power_on_device()
300 struct device_node *child = NULL; in pci_pwrctrl_power_on_devices() local
303 for_each_available_child_of_node(np, child) { in pci_pwrctrl_power_on_devices()
304 ret = pci_pwrctrl_power_on_device(child); in pci_pwrctrl_power_on_devices()
313 if (tmp == child) in pci_pwrctrl_power_on_devices()
[all …]
/linux/tools/testing/selftests/landlock/
H A Dptrace_test.c96 * Test multiple tracing combinations between a parent process P1 and a child
113 /* Test PTRACE_TRACEME and PTRACE_ATTACH for parent and child. */ in TEST_F() local
116 pid_t child, parent; in TEST_F()
132 * can_read_child is true if a parent process can read its child in TEST_F()
134 * isolated from the child with a dedicated Landlock domain. in TEST_F()
139 * can_trace_child is true if a parent process can trace its child in TEST_F()
141 * - The parent process is not isolated from the child with a dedicated in TEST_F()
149 * can_read_parent is true if a child process can read its parent in TEST_F()
150 * process, which is only the case when the child process is not in TEST_F()
156 * can_trace_parent is true if a child proces in TEST_F()
335 pid_t child; TEST_F() local
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/linux/tools/testing/selftests/perf_events/
H A Dwatermark_signal.c46 pid_t child = -1; in TEST() local
64 child = fork(); in TEST()
65 EXPECT_GE(child, 0); in TEST()
66 if (child == 0) in TEST()
68 else if (child < 0) { in TEST()
73 if (waitpid(child, &child_status, WSTOPPED) != child || in TEST()
76 "failed to synchronize with child errno=%d status=%x\n", in TEST()
82 fd = syscall(__NR_perf_event_open, &attr, child, -1, -1, in TEST()
115 if (kill(child, SIGCON in TEST()
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