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/linux/arch/powerpc/kernel/ptrace/
A Dptrace-adv.c224 regs_set_return_msr(child->thread.regs, child->thread.regs->msr | MSR_DE); in set_instruction_bp()
241 child->thread.debug.iac1 = 0; in del_instruction_bp()
251 child->thread.debug.iac2 = 0; in del_instruction_bp()
264 child->thread.debug.iac3 = 0; in del_instruction_bp()
274 child->thread.debug.iac4 = 0; in del_instruction_bp()
308 child->thread.debug.dvc1 = in set_dac()
310 child->thread.debug.dbcr2 |= in set_dac()
329 child->thread.debug.dvc2 = in set_dac()
331 child->thread.debug.dbcr2 |= in set_dac()
340 regs_set_return_msr(child->thread.regs, child->thread.regs->msr | MSR_DE); in set_dac()
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A Dptrace32.c87 ret = ptrace_get_reg(child, index, &tmp); in compat_arch_ptrace()
91 flush_fp_to_thread(child); in compat_arch_ptrace()
136 flush_fp_to_thread(child); in compat_arch_ptrace()
141 ret = ptrace_get_reg(child, numReg, &tmp2); in compat_arch_ptrace()
189 ret = ptrace_put_reg(child, index, data); in compat_arch_ptrace()
191 flush_fp_to_thread(child); in compat_arch_ptrace()
228 ret = ptrace_get_reg(child, numReg, &freg); in compat_arch_ptrace()
235 ret = ptrace_put_reg(child, numReg, freg); in compat_arch_ptrace()
238 flush_fp_to_thread(child); in compat_arch_ptrace()
269 child, task_user_regset_view(current), 0, in compat_arch_ptrace()
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/linux/drivers/mtd/
A Dmtdpart.c56 child = kzalloc(sizeof(*child), GFP_KERNEL); in allocate_partition()
62 kfree(child); in allocate_partition()
70 child->flags = child->part.flags; in allocate_partition()
113 child->part.size = parent_size - child->part.offset - in allocate_partition()
124 child->part.size = parent_size - child->part.offset; in allocate_partition()
127 child->part.offset, child->part.offset + child->part.size, in allocate_partition()
143 child->part.size = parent_size - child->part.offset; in allocate_partition()
151 u64 end = child->part.offset + child->part.size; in allocate_partition()
193 tmp = mtd_get_master_ofs(child, 0) + child->part.size; in allocate_partition()
201 child->size = child->part.size; in allocate_partition()
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/linux/arch/x86/kernel/
A Dstep.c38 mutex_lock(&child->mm->context.lock); in convert_ip_to_linear()
39 if (unlikely(!child->mm->context.ldt || in convert_ip_to_linear()
51 mutex_unlock(&child->mm->context.lock); in convert_ip_to_linear()
115 struct pt_regs *regs = task_pt_regs(child); in enable_single_step()
157 if (is_setting_trap_flag(child, regs)) { in enable_single_step()
213 if (enable_single_step(child) && block) in enable_step()
214 set_task_blockstep(child, true); in enable_step()
216 set_task_blockstep(child, false); in enable_step()
221 enable_step(child, 0); in user_enable_single_step()
226 enable_step(child, 1); in user_enable_block_step()
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/linux/kernel/
A Dptrace.c120 BUG_ON(!child->ptrace); in __ptrace_unlink()
127 child->parent = child->real_parent; in __ptrace_unlink()
134 child->ptrace = 0; in __ptrace_unlink()
157 if (child->jobctl & JOBCTL_STOP_PENDING || task_is_traced(child)) in __ptrace_unlink()
251 if (child->ptrace && child->parent == current) { in ptrace_check_attach()
569 ptrace_disable(child); in ptrace_detach()
576 WARN_ON(!child->ptrace || child->exit_state); in ptrace_detach()
987 switch (child->last_siginfo ? child->last_siginfo->si_code : 0) { in ptrace_get_syscall_info()
1127 ptrace_signal_wake_up(child, child->jobctl & JOBCTL_LISTENING); in ptrace_request()
1270 if (!child) { in SYSCALL_DEFINE4()
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/linux/tools/testing/selftests/arm64/fp/
A Dfp-stress.c70 child->pid = fork(); in child_start()
71 if (child->pid == -1) in child_start()
75 if (!child->pid) { in child_start()
134 ev.data.ptr = child; in child_start()
165 if (child->output) { in child_output_read()
168 free(child->output); in child_output_read()
210 child->stdout = -1; in child_output()
215 ksft_print_msg("%s: %s<EOF>\n", child->name, child->output); in child_output()
223 if (child->output_seen && !child->exited) in child_tickle()
229 if (!child->exited) in child_stop()
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/linux/tools/testing/selftests/powerpc/ptrace/
A Dptrace.h64 int start_trace(pid_t child) in start_trace() argument
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
93 int cont_trace(pid_t child) in cont_trace() argument
111 FAIL_IF(start_trace(child)); in ptrace_read_regs()
120 FAIL_IF(stop_trace(child)); in ptrace_read_regs()
131 FAIL_IF(start_trace(child)); in ptrace_write_regs()
138 FAIL_IF(stop_trace(child)); in ptrace_write_regs()
325 int show_fpr(pid_t child, __u64 *fpr) in show_fpr() argument
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/linux/tools/testing/selftests/bpf/prog_tests/
A Duprobe_multi_test.c62 static void kick_child(struct child *child) in kick_child() argument
75 struct child *child = arg; in child_func() local
100 child->pid = child->tid = clone(child_func, child->stack + sizeof(child->stack)/2, in spawn_child_flag()
103 child->pid = child->tid = fork(); in spawn_child_flag()
125 struct child *child = ctx; in child_thread() local
204 if (!child || !child->thread) { in uprobe_multi_test_run()
257 struct child *child) in __test_attach_api() argument
259 pid_t pid = child ? child->pid : -1; in __test_attach_api()
321 static struct child child; in test_attach_api() local
727 static struct child child; in test_link_api() local
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/linux/arch/mips/kernel/
A Dptrace32.c86 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()
117 tmp = child->thread.fpu.fcr31; in compat_arch_ptrace()
147 dregs = __get_dsp_regs(child); in compat_arch_ptrace()
197 regs = task_pt_regs(child); in compat_arch_ptrace()
213 if (!tsk_used_math(child)) { in compat_arch_ptrace()
217 child->thread.fpu.fcr31 = 0; in compat_arch_ptrace()
253 dregs = __get_dsp_regs(child); in compat_arch_ptrace()
273 ret = ptrace_getregs(child, in compat_arch_ptrace()
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/linux/tools/perf/arch/x86/tests/
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()
106 waitpid(child, &status, 0); in bp_modify1()
138 pid_t child; in bp_modify2() local
142 child = spawn_child(); in bp_modify2()
144 waitpid(child, &status, 0); in bp_modify2()
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/linux/arch/m68k/kernel/
A Dptrace.c132 put_reg(child, PT_SR, tmp); in singlestep_disable()
141 singlestep_disable(child); in ptrace_disable()
147 put_reg(child, PT_SR, tmp | T1_BIT); in user_enable_single_step()
161 singlestep_disable(child); in user_disable_single_step()
179 tmp = get_reg(child, regno); in arch_ptrace()
190 tmp = child->mm->start_code; in arch_ptrace()
192 tmp = child->mm->start_data; in arch_ptrace()
194 tmp = child->mm->end_code; in arch_ptrace()
211 if (put_reg(child, regno, data)) in arch_ptrace()
229 tmp = get_reg(child, i); in arch_ptrace()
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/linux/drivers/net/mdio/
A Dof_mdio.c38 struct device_node *child, u32 addr) in of_mdiobus_phy_device_register() argument
41 of_fwnode_handle(child), in of_mdiobus_phy_device_register()
79 child, addr); in of_mdiobus_register_device()
131 child); in of_mdiobus_child_is_phy()
145 struct device_node *child; in __of_mdiobus_parse_phys() local
170 if (of_mdiobus_child_is_phy(child)) in __of_mdiobus_parse_phys()
185 of_node_put(child); in __of_mdiobus_parse_phys()
201 struct device_node *child; in __of_mdiobus_register() local
251 child, addr); in __of_mdiobus_register()
253 if (of_mdiobus_child_is_phy(child)) { in __of_mdiobus_register()
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A Dfwnode_mdio.c68 rc = fwnode_irq_get(child, 0); in fwnode_mdiobus_phy_device_register()
95 fwnode_handle_get(child); in fwnode_mdiobus_phy_device_register()
96 device_set_node(&phy->mdio.dev, child); in fwnode_mdiobus_phy_device_register()
104 fwnode_handle_put(child); in fwnode_mdiobus_phy_device_register()
109 child, addr); in fwnode_mdiobus_phy_device_register()
115 struct fwnode_handle *child, u32 addr) in fwnode_mdiobus_register_phy() argument
124 psec = fwnode_find_pse_control(child); in fwnode_mdiobus_register_phy()
128 mii_ts = fwnode_find_mii_timestamper(child); in fwnode_mdiobus_register_phy()
144 if (is_acpi_node(child)) { in fwnode_mdiobus_register_phy()
156 fwnode_handle_put(child); in fwnode_mdiobus_register_phy()
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/linux/arch/alpha/kernel/
A Dptrace.c179 ptrace_set_bpt(struct task_struct * child) in ptrace_set_bpt() argument
185 pc = get_reg(child, REG_PC); in ptrace_set_bpt()
208 task_thread_info(child)->bpt_addr[nsaved++] = get_reg(child, reg_b); in ptrace_set_bpt()
217 res = read_int(child, task_thread_info(child)->bpt_addr[i], in ptrace_set_bpt()
224 res = write_int(child, task_thread_info(child)->bpt_addr[i], in ptrace_set_bpt()
242 task_thread_info(child)->bpt_nsaved = 0; in ptrace_cancel_bpt()
250 write_int(child, task_thread_info(child)->bpt_addr[i], in ptrace_cancel_bpt()
264 ptrace_cancel_bpt(child); in user_disable_single_step()
274 user_disable_single_step(child); in ptrace_disable()
301 ret = get_reg(child, addr); in arch_ptrace()
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/linux/arch/x86/um/
A Dptrace_32.c105 return putreg(child, addr, data); in poke_user()
160 tmp = getreg(child, addr); in peek_user()
166 tmp = child->thread.arch.debugregs[addr]; in peek_user()
173 int err, n, cpu = task_cpu(child); in get_fpregs()
190 int n, cpu = task_cpu(child); in set_fpregs()
203 int err, n, cpu = task_cpu(child); in get_fpxregs()
219 int n, cpu = task_cpu(child); in set_fpxregs()
237 ret = get_fpregs(datap, child); in subarch_ptrace()
240 ret = set_fpregs(datap, child); in subarch_ptrace()
243 ret = get_fpxregs(datap, child); in subarch_ptrace()
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A Dptrace_64.c78 UPT_SYSCALL_NR(&child->thread.regs.regs) = value; in putreg()
100 child->thread.regs.regs.gp[HOST_EFLAGS] |= value; in putreg()
117 return putreg(child, addr, data); in poke_user()
124 child->thread.arch.debugregs[addr] = data; in poke_user()
130 unsigned long getreg(struct task_struct *child, int regno) in getreg() argument
181 tmp = getreg(child, addr); in peek_user()
186 tmp = child->thread.arch.debugregs[addr]; in peek_user()
210 int n, cpu = ((struct thread_info *) child->stack)->cpu; in set_fpregs()
229 ret = get_fpregs(datap, child); in subarch_ptrace()
232 ret = set_fpregs(datap, child); in subarch_ptrace()
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/linux/arch/um/kernel/
A Dptrace.c14 set_tsk_thread_flag(child, TIF_SINGLESTEP); in user_enable_single_step()
17 SUBARCH_SET_SINGLESTEPPING(child, 1); in user_enable_single_step()
23 clear_tsk_thread_flag(child, TIF_SINGLESTEP); in user_disable_single_step()
26 SUBARCH_SET_SINGLESTEPPING(child, 0); in user_disable_single_step()
33 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
35 user_disable_single_step(child); in ptrace_disable()
48 ret = peek_user(child, addr, data); in arch_ptrace()
53 ret = poke_user(child, addr, data); in arch_ptrace()
68 __put_user(getreg(child, i), p); in arch_ptrace()
84 putreg(child, i, tmp); in arch_ptrace()
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/linux/tools/testing/selftests/ptrace/
A Dpeeksiginfo.c44 static int check_error_paths(pid_t child) in check_error_paths() argument
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()
185 sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, &siginfo); in main()
191 waitpid(child, NULL, 0); in main()
194 if (check_direct_path(child, 0, 1)) in main()
204 if (check_direct_path(child, 1, 3)) in main()
207 if (check_error_paths(child)) in main()
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/linux/tools/testing/selftests/arm64/abi/
A Dptrace.c32 static void test_tpidr(pid_t child) in test_tpidr() argument
117 ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, in test_tpidr()
145 ret = ptrace(PTRACE_GETREGSET, child, type, &iov); in test_hw_debug()
174 static int do_parent(pid_t child) in do_parent() argument
195 if (pid != child) in do_parent()
237 test_tpidr(child); in do_parent()
244 kill(child, SIGKILL); in do_parent()
253 pid_t child; in main() local
261 child = fork(); in main()
262 if (!child) in main()
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/linux/tools/testing/selftests/cgroup/
A Dtest_core.c321 if (child) in test_cgcore_invalid_domain()
327 free(child); in test_cgcore_invalid_domain()
362 if (child) in test_cgcore_parent_becomes_threaded()
366 free(child); in test_cgcore_parent_becomes_threaded()
415 if (child) in test_cgcore_no_internal_process_constraint_on_threads()
419 free(child); in test_cgcore_no_internal_process_constraint_on_threads()
450 if (child) in test_cgcore_top_down_constraint_enable()
454 free(child); in test_cgcore_top_down_constraint_enable()
491 if (child) in test_cgcore_top_down_constraint_disable()
495 free(child); in test_cgcore_top_down_constraint_disable()
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/linux/include/linux/
A Dptrace.h92 return !same_thread_group(child->real_parent, child->parent); in ptrace_reparented()
97 if (unlikely(child->ptrace)) in ptrace_unlink()
98 __ptrace_unlink(child); in ptrace_unlink()
202 INIT_LIST_HEAD(&child->ptrace_entry); in ptrace_init_task()
203 INIT_LIST_HEAD(&child->ptraced); in ptrace_init_task()
204 child->jobctl = 0; in ptrace_init_task()
205 child->ptrace = 0; in ptrace_init_task()
206 child->parent = child->real_parent; in ptrace_init_task()
209 child->ptrace = current->ptrace; in ptrace_init_task()
212 if (child->ptrace & PT_SEIZED) in ptrace_init_task()
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A Dbootconfig.h53 uint16_t child; member
105 return xbc_node_is_value(node) && node->child != 0; in xbc_node_is_array()
174 struct xbc_node *child = xbc_node_get_child(node); in xbc_node_get_subkey() local
176 if (child && xbc_node_is_value(child)) in xbc_node_get_subkey()
177 return xbc_node_get_next(child); in xbc_node_get_subkey()
179 return child; in xbc_node_get_subkey()
204 #define xbc_node_for_each_child(parent, child) \ argument
205 for (child = xbc_node_get_child(parent); child != NULL ; \
206 child = xbc_node_get_next(child))
217 for (child = xbc_node_get_subkey(parent); child != NULL ; \
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/linux/fs/
A Dpnode.c226 struct mount *child; in propagate_one() local
261 if (IS_ERR(child)) in propagate_one()
269 last_source = child; in propagate_one()
337 struct mount *child; in find_topper() local
346 return child; in find_topper()
427 if (!child) in propagate_mount_busy()
460 if (child) in propagate_mount_unlock()
483 struct mount *child; in __propagate_umount() local
498 if (!list_empty(&child->mnt_umounting) && IS_MNT_MARKED(child)) in __propagate_umount()
599 if (!child) in propagate_umount()
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/linux/arch/sh/kernel/
A Dptrace_32.c116 set_single_step(child, pc); in user_enable_single_step()
131 user_disable_single_step(child); in ptrace_disable()
355 tmp = get_stack_long(child, addr); in arch_ptrace()
358 if (!tsk_used_math(child)) { in arch_ptrace()
365 ret = init_fpu(child); in arch_ptrace()
373 tmp = !!tsk_used_math(child); in arch_ptrace()
375 tmp = child->mm->start_code; in arch_ptrace()
377 tmp = child->mm->start_data; in arch_ptrace()
379 tmp = child->mm->end_code; in arch_ptrace()
381 tmp = child->mm->end_code - child->mm->start_code; in arch_ptrace()
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/linux/drivers/scsi/libsas/
A Dsas_expander.c771 child->linkrate = min(parent_phy->linkrate, child->max_linkrate); in sas_ex_get_linkrate()
772 child->pathways = min(child->pathways, parent->pathways); in sas_ex_get_linkrate()
789 child->rphy = rphy; in sas_ex_add_dev()
821 if (!child) in sas_ex_discover_end_dev()
829 sas_hash_addr(child->hashed_sas_addr, child->sas_addr); in sas_ex_discover_end_dev()
857 return child; in sas_ex_discover_end_dev()
908 if (!child) in sas_ex_discover_expander()
940 sas_hash_addr(child->hashed_sas_addr, child->sas_addr); in sas_ex_discover_expander()
965 return child; in sas_ex_discover_expander()
1057 if (!child) in sas_ex_discover_dev()
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