| /Linux-v5.4/kernel/ |
| D | ptrace.c | 67 void __ptrace_link(struct task_struct *child, struct task_struct *new_parent, in __ptrace_link() argument
70 BUG_ON(!list_empty(&child->ptrace_entry)); in __ptrace_link()
71 list_add(&child->ptrace_entry, &new_parent->ptraced); in __ptrace_link()
72 child->parent = new_parent; in __ptrace_link()
73 child->ptracer_cred = get_cred(ptracer_cred); in __ptrace_link()
82 static void ptrace_link(struct task_struct *child, struct task_struct *new_parent) in ptrace_link() argument
84 __ptrace_link(child, new_parent, current_cred()); in ptrace_link()
89 * @child: ptracee to be unlinked
91 * Remove @child from the ptrace list, move it back to the original parent,
115 void __ptrace_unlink(struct task_struct *child) in __ptrace_unlink() argument
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| /Linux-v5.4/scripts/kconfig/ |
| D | gconf.glade | 24 <child>
30 <child>
34 <child>
40 <child>
43 <child>
52 <child internal-child="image">
62 </child>
64 </child>
66 <child>
75 <child internal-child="image">
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| D | conf.c | 232 struct menu *child; in conf_choice() local
267 for (child = menu->list; child; child = child->next) { in conf_choice()
268 if (!menu_is_visible(child)) in conf_choice()
270 if (!child->sym) { in conf_choice()
271 printf("%*c %s\n", indent, '*', menu_get_prompt(child)); in conf_choice()
275 if (child->sym == def_sym) { in conf_choice()
280 printf(" %d. %s", cnt, menu_get_prompt(child)); in conf_choice()
281 if (child->sym->name) in conf_choice()
282 printf(" (%s)", child->sym->name); in conf_choice()
283 if (!sym_has_value(child->sym)) in conf_choice()
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| /Linux-v5.4/tools/testing/selftests/cgroup/ |
| D | test_core.c | 107 char *grandparent = NULL, *parent = NULL, *child = NULL; in test_cgcore_invalid_domain() local
111 child = cg_name(root, "cg_test_grandparent/cg_test_parent/cg_test_child"); in test_cgcore_invalid_domain()
112 if (!parent || !child || !grandparent) in test_cgcore_invalid_domain()
121 if (cg_create(child)) in test_cgcore_invalid_domain()
127 if (cg_read_strcmp(child, "cgroup.type", "domain invalid\n")) in test_cgcore_invalid_domain()
130 if (!cg_enter_current(child)) in test_cgcore_invalid_domain()
140 if (child) in test_cgcore_invalid_domain()
141 cg_destroy(child); in test_cgcore_invalid_domain()
146 free(child); in test_cgcore_invalid_domain()
153 * Test that when a child becomes threaded
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| /Linux-v5.4/tools/testing/selftests/powerpc/ptrace/ |
| D | ptrace.h | 60 int start_trace(pid_t child) in start_trace() argument
64 ret = ptrace(PTRACE_ATTACH, child, NULL, NULL); in start_trace()
69 ret = waitpid(child, NULL, 0); in start_trace()
70 if (ret != child) { in start_trace()
77 int stop_trace(pid_t child) in stop_trace() argument
81 ret = ptrace(PTRACE_DETACH, child, NULL, NULL); in stop_trace()
89 int cont_trace(pid_t child) in cont_trace() argument
93 ret = ptrace(PTRACE_CONT, child, NULL, NULL); in cont_trace()
101 int ptrace_read_regs(pid_t child, unsigned long type, unsigned long regs[], in ptrace_read_regs() argument
107 FAIL_IF(start_trace(child)); in ptrace_read_regs()
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| /Linux-v5.4/arch/x86/kernel/ |
| D | step.c | 12 unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs) in convert_ip_to_linear() argument
36 mutex_lock(&child->mm->context.lock); in convert_ip_to_linear()
37 if (unlikely(!child->mm->context.ldt || in convert_ip_to_linear()
38 seg >= child->mm->context.ldt->nr_entries)) in convert_ip_to_linear()
41 desc = &child->mm->context.ldt->entries[seg]; in convert_ip_to_linear()
49 mutex_unlock(&child->mm->context.lock); in convert_ip_to_linear()
56 static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) in is_setting_trap_flag() argument
60 unsigned long addr = convert_ip_to_linear(child, regs); in is_setting_trap_flag()
62 copied = access_process_vm(child, addr, opcode, sizeof(opcode), in is_setting_trap_flag()
111 static int enable_single_step(struct task_struct *child) in enable_single_step() argument
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| D | ptrace.c | 132 * does not yet catch signals sent when the child dies.
354 static int putreg(struct task_struct *child, in putreg() argument
364 return set_segment_reg(child, offset, value); in putreg()
367 return set_flags(child, value); in putreg()
378 if (child->thread.fsbase != value) in putreg()
379 return do_arch_prctl_64(child, ARCH_SET_FS, value); in putreg()
387 if (child->thread.gsbase != value) in putreg()
388 return do_arch_prctl_64(child, ARCH_SET_GS, value); in putreg()
393 *pt_regs_access(task_pt_regs(child), offset) = value; in putreg()
721 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
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| /Linux-v5.4/arch/um/kernel/ |
| D | ptrace.c | 13 void user_enable_single_step(struct task_struct *child) in user_enable_single_step() argument
15 child->ptrace |= PT_DTRACE; in user_enable_single_step()
16 child->thread.singlestep_syscall = 0; in user_enable_single_step()
19 SUBARCH_SET_SINGLESTEPPING(child, 1); in user_enable_single_step()
23 void user_disable_single_step(struct task_struct *child) in user_disable_single_step() argument
25 child->ptrace &= ~PT_DTRACE; in user_disable_single_step()
26 child->thread.singlestep_syscall = 0; in user_disable_single_step()
29 SUBARCH_SET_SINGLESTEPPING(child, 0); in user_disable_single_step()
36 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
38 user_disable_single_step(child); in ptrace_disable()
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| /Linux-v5.4/drivers/pwm/ |
| D | sysfs.c | 18 struct device child; member
24 static struct pwm_export *child_to_pwm_export(struct device *child) in child_to_pwm_export() argument
26 return container_of(child, struct pwm_export, child); in child_to_pwm_export()
29 static struct pwm_device *child_to_pwm_device(struct device *child) in child_to_pwm_device() argument
31 struct pwm_export *export = child_to_pwm_export(child); in child_to_pwm_device()
36 static ssize_t period_show(struct device *child, in period_show() argument
40 const struct pwm_device *pwm = child_to_pwm_device(child); in period_show()
48 static ssize_t period_store(struct device *child, in period_store() argument
52 struct pwm_export *export = child_to_pwm_export(child); in period_store()
71 static ssize_t duty_cycle_show(struct device *child, in duty_cycle_show() argument
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| /Linux-v5.4/tools/perf/arch/x86/tests/ |
| D | bp-modify.c | 32 int child = fork(); in spawn_child() local
34 if (child == 0) { in spawn_child()
36 * The child sets itself for as tracee and 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()
79 * - detaches the child in bp_modify1()
81 if (ptrace(PTRACE_POKEUSER, child, in bp_modify1()
88 if (ptrace(PTRACE_POKEUSER, child, in bp_modify1()
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| /Linux-v5.4/arch/s390/numa/ |
| D | toptree.c | 54 * masks will be updated to reflect the loss of the child.
76 struct toptree *child, *tmp; in toptree_free() local
80 toptree_for_each_child_safe(child, tmp, cand) in toptree_free()
81 toptree_free(child); in toptree_free()
102 struct toptree *child; in toptree_update_mask() local
105 list_for_each_entry(child, &cand->children, sibling) in toptree_update_mask()
106 cpumask_or(&cand->mask, &cand->mask, &child->mask); in toptree_update_mask()
114 * @target: Pointer to the node to which @cand will added as a child
135 * toptree_move_children - Move all child nodes of a node to a new place
139 * Take all child nodes of @cand and move them using toptree_move.
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| /Linux-v5.4/arch/m68k/kernel/ |
| D | ptrace.c | 30 * does not yet catch signals sent when the child dies.
127 static inline void singlestep_disable(struct task_struct *child) in singlestep_disable() argument
129 unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; in singlestep_disable()
130 put_reg(child, PT_SR, tmp); in singlestep_disable()
131 clear_tsk_thread_flag(child, TIF_DELAYED_TRACE); in singlestep_disable()
137 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
139 singlestep_disable(child); in ptrace_disable()
142 void user_enable_single_step(struct task_struct *child) in user_enable_single_step() argument
144 unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; in user_enable_single_step()
145 put_reg(child, PT_SR, tmp | T1_BIT); in user_enable_single_step()
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| /Linux-v5.4/arch/x86/um/ |
| D | ptrace_32.c | 75 int putreg(struct task_struct *child, int regno, unsigned long value) in putreg() argument
91 UPT_SYSCALL_NR(&child->thread.regs.regs) = value; in putreg()
115 child->thread.regs.regs.gp[HOST_EFLAGS] |= value; in putreg()
120 child->thread.regs.regs.gp[reg_offsets[regno]] = value; in putreg()
124 int poke_user(struct task_struct *child, long addr, long data) in poke_user() argument
130 return putreg(child, addr, data); in poke_user()
137 child->thread.arch.debugregs[addr] = data; in poke_user()
143 unsigned long getreg(struct task_struct *child, int regno) in getreg() argument
172 return mask & child->thread.regs.regs.gp[reg_offsets[regno]]; in getreg()
176 int peek_user(struct task_struct *child, long addr, long data) in peek_user() argument
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| D | ptrace_64.c | 53 int putreg(struct task_struct *child, int regno, unsigned long value) in putreg() argument
60 if (test_tsk_thread_flag(child, TIF_IA32)) in putreg()
85 UPT_SYSCALL_NR(&child->thread.regs.regs) = value; in putreg()
107 child->thread.regs.regs.gp[HOST_EFLAGS] |= value; in putreg()
114 child->thread.regs.regs.gp[reg_offsets[regno >> 3]] = value; in putreg()
118 int poke_user(struct task_struct *child, long addr, long data) in poke_user() argument
124 return putreg(child, addr, data); in poke_user()
131 child->thread.arch.debugregs[addr] = data; in poke_user()
137 unsigned long getreg(struct task_struct *child, int regno) in getreg() argument
141 if (test_tsk_thread_flag(child, TIF_IA32)) in getreg()
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| /Linux-v5.4/arch/mips/kernel/ |
| D | ptrace32.c | 44 long compat_arch_ptrace(struct task_struct *child, compat_long_t request, in compat_arch_ptrace() argument
74 copied = ptrace_access_vm(child, (u64)addrOthers, &tmp, in compat_arch_ptrace()
87 regs = task_pt_regs(child); in compat_arch_ptrace()
98 if (!tsk_used_math(child)) { in compat_arch_ptrace()
103 fregs = get_fpu_regs(child); in compat_arch_ptrace()
104 if (test_tsk_thread_flag(child, TIF_32BIT_FPREGS)) { in compat_arch_ptrace()
118 tmp = child->thread.fpu.fcr31; in compat_arch_ptrace()
148 dregs = __get_dsp_regs(child); in compat_arch_ptrace()
158 tmp = child->thread.dsp.dspcontrol; in compat_arch_ptrace()
187 if (ptrace_access_vm(child, (u64)addrOthers, &data, in compat_arch_ptrace()
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| /Linux-v5.4/drivers/mfd/ |
| D | twl-core.c | 711 struct device *child; in add_children() local
714 child = add_child(TWL4030_MODULE_GPIO, "twl4030_gpio", in add_children()
717 if (IS_ERR(child)) in add_children()
718 return PTR_ERR(child); in add_children()
722 child = add_child(TWL4030_MODULE_KEYPAD, "twl4030_keypad", in add_children()
725 if (IS_ERR(child)) in add_children()
726 return PTR_ERR(child); in add_children()
731 child = add_child(TWL4030_MODULE_MADC, "twl4030_madc", in add_children()
734 if (IS_ERR(child)) in add_children()
735 return PTR_ERR(child); in add_children()
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| /Linux-v5.4/Documentation/devicetree/bindings/i2c/ |
| D | i2c-mux.txt | 3 An i2c bus multiplexer/switch will have several child busses that are
5 multiplexer/switch will have one child node for each child bus.
9 This property is required if the i2c-mux child node does not exist.
12 This property is required if the i2c-mux child node does not exist.
15 For i2c multiplexers/switches that have child nodes that are a mixture
16 of both i2c child busses and other child nodes, the 'i2c-mux' subnode
17 can be used for populating the i2c child busses. If an 'i2c-mux'
19 child busses.
21 Required properties for the i2c-mux child node:
25 Required properties for i2c child bus nodes:
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| /Linux-v5.4/arch/powerpc/kernel/ |
| D | ptrace32.c | 38 * does not yet catch signals sent when the child dies.
47 long compat_arch_ptrace(struct task_struct *child, compat_long_t request, in compat_arch_ptrace() argument
76 copied = ptrace_access_vm(child, (u64)addrOthers, &tmp, in compat_arch_ptrace()
95 CHECK_FULL_REGS(child->thread.regs); in compat_arch_ptrace()
97 ret = ptrace_get_reg(child, index, &tmp); in compat_arch_ptrace()
101 flush_fp_to_thread(child); in compat_arch_ptrace()
107 tmp = ((unsigned int *)child->thread.fp_state.fpr) in compat_arch_ptrace()
145 CHECK_FULL_REGS(child->thread.regs); in compat_arch_ptrace()
147 flush_fp_to_thread(child); in compat_arch_ptrace()
149 tmp = child->thread.fp_state.fpr[numReg - PT_FPR0][0]; in compat_arch_ptrace()
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| /Linux-v5.4/arch/alpha/kernel/ |
| D | ptrace.c | 44 * does not yet catch signals sent when the child dies.
179 ptrace_set_bpt(struct task_struct * child) in ptrace_set_bpt() argument
185 pc = get_reg(child, REG_PC); in ptrace_set_bpt()
186 res = read_int(child, pc, (int *) &insn); in ptrace_set_bpt()
201 task_thread_info(child)->bpt_addr[nsaved++] = pc + 4; in ptrace_set_bpt()
203 task_thread_info(child)->bpt_addr[nsaved++] in ptrace_set_bpt()
208 task_thread_info(child)->bpt_addr[nsaved++] = get_reg(child, reg_b); in ptrace_set_bpt()
211 task_thread_info(child)->bpt_addr[nsaved++] = pc + 4; in ptrace_set_bpt()
217 res = read_int(child, task_thread_info(child)->bpt_addr[i], in ptrace_set_bpt()
221 task_thread_info(child)->bpt_insn[i] = insn; in ptrace_set_bpt()
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| /Linux-v5.4/fs/ |
| D | pnode.c | 227 struct mount *child; in propagate_one() local
261 child = copy_tree(last_source, last_source->mnt.mnt_root, type); in propagate_one()
262 if (IS_ERR(child)) in propagate_one()
263 return PTR_ERR(child); in propagate_one()
264 mnt_set_mountpoint(m, mp, child); in propagate_one()
266 last_source = child; in propagate_one()
272 hlist_add_head(&child->mnt_hash, list); in propagate_one()
273 return count_mounts(m->mnt_ns, child); in propagate_one()
340 struct mount *child; in find_topper() local
345 child = list_first_entry(&mnt->mnt_mounts, struct mount, mnt_child); in find_topper()
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| /Linux-v5.4/drivers/of/ |
| D | of_mdio.c | 46 struct device_node *child, u32 addr) in of_mdiobus_register_phy() argument
53 is_c45 = of_device_is_compatible(child, in of_mdiobus_register_phy()
56 if (!is_c45 && !of_get_phy_id(child, &phy_id)) in of_mdiobus_register_phy()
63 rc = of_irq_get(child, 0); in of_mdiobus_register_phy()
75 if (of_property_read_bool(child, "broken-turn-around")) in of_mdiobus_register_phy()
78 of_property_read_u32(child, "reset-assert-us", in of_mdiobus_register_phy()
80 of_property_read_u32(child, "reset-deassert-us", in of_mdiobus_register_phy()
85 of_node_get(child); in of_mdiobus_register_phy()
86 phy->mdio.dev.of_node = child; in of_mdiobus_register_phy()
87 phy->mdio.dev.fwnode = of_fwnode_handle(child); in of_mdiobus_register_phy()
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| /Linux-v5.4/drivers/scsi/libsas/ |
| D | sas_expander.c | 745 struct domain_device *child, in sas_ex_get_linkrate() argument
752 child->pathways = 0; in sas_ex_get_linkrate()
764 SAS_ADDR(child->sas_addr)) { in sas_ex_get_linkrate()
766 child->min_linkrate = min(parent->min_linkrate, in sas_ex_get_linkrate()
768 child->max_linkrate = max(parent->max_linkrate, in sas_ex_get_linkrate()
770 child->pathways++; in sas_ex_get_linkrate()
774 child->linkrate = min(parent_phy->linkrate, child->max_linkrate); in sas_ex_get_linkrate()
775 child->pathways = min(child->pathways, parent->pathways); in sas_ex_get_linkrate()
783 struct domain_device *child = NULL; in sas_ex_discover_end_dev() local
790 child = sas_alloc_device(); in sas_ex_discover_end_dev()
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| /Linux-v5.4/tools/testing/selftests/ptrace/ |
| D | peeksiginfo.c | 44 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-v5.4/drivers/bus/ |
| D | tegra-gmi.c | 91 struct device_node *child; in tegra_gmi_parse_dt() local
95 child = of_get_next_available_child(gmi->dev->of_node, NULL); in tegra_gmi_parse_dt()
96 if (!child) { in tegra_gmi_parse_dt()
97 dev_err(gmi->dev, "no child nodes found\n"); in tegra_gmi_parse_dt()
102 * We currently only support one child device due to lack of in tegra_gmi_parse_dt()
107 dev_warn(gmi->dev, "only one child device is supported."); in tegra_gmi_parse_dt()
109 if (of_property_read_bool(child, "nvidia,snor-data-width-32bit")) in tegra_gmi_parse_dt()
112 if (of_property_read_bool(child, "nvidia,snor-mux-mode")) in tegra_gmi_parse_dt()
115 if (of_property_read_bool(child, "nvidia,snor-rdy-active-before-data")) in tegra_gmi_parse_dt()
118 if (of_property_read_bool(child, "nvidia,snor-rdy-active-high")) in tegra_gmi_parse_dt()
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| /Linux-v5.4/arch/xtensa/kernel/ |
| D | ptrace.c | 226 void user_enable_single_step(struct task_struct *child) in user_enable_single_step() argument
228 child->ptrace |= PT_SINGLESTEP; in user_enable_single_step()
231 void user_disable_single_step(struct task_struct *child) in user_disable_single_step() argument
233 child->ptrace &= ~PT_SINGLESTEP; in user_disable_single_step()
240 void ptrace_disable(struct task_struct *child) in ptrace_disable() argument
245 static int ptrace_getregs(struct task_struct *child, void __user *uregs) in ptrace_getregs() argument
247 return copy_regset_to_user(child, &user_xtensa_view, REGSET_GPR, in ptrace_getregs()
251 static int ptrace_setregs(struct task_struct *child, void __user *uregs) in ptrace_setregs() argument
253 return copy_regset_from_user(child, &user_xtensa_view, REGSET_GPR, in ptrace_setregs()
257 static int ptrace_getxregs(struct task_struct *child, void __user *uregs) in ptrace_getxregs() argument
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