Lines Matching +full:half +full:-
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Signal support for 32-bit kernel builds
4 * Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org>
5 * Copyright (C) 2006 Kyle McMartin <kyle at parisc-linux.org>
44 /* When loading 32-bit values into 64-bit registers make in restore_sigcontext32()
45 sure to clear the upper 32-bits */ in restore_sigcontext32()
50 err |= __get_user(compat_reg,&sc->sc_gr[regn]); in restore_sigcontext32()
51 regs->gr[regn] = compat_reg; in restore_sigcontext32()
52 /* Load upper half */ in restore_sigcontext32()
53 err |= __get_user(compat_regt,&rf->rf_gr[regn]); in restore_sigcontext32()
54 regs->gr[regn] = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
56 regn, regs->gr[regn], compat_regt, compat_reg); in restore_sigcontext32()
58 DBG(2,"restore_sigcontext32: sc->sc_fr = 0x%p (%#lx)\n",sc->sc_fr, sizeof(sc->sc_fr)); in restore_sigcontext32()
59 /* XXX: BE WARNED FR's are 64-BIT! */ in restore_sigcontext32()
60 err |= __copy_from_user(regs->fr, sc->sc_fr, sizeof(regs->fr)); in restore_sigcontext32()
64 64-bits */ in restore_sigcontext32()
65 err |= __get_user(compat_reg, &sc->sc_iaoq[0]); in restore_sigcontext32()
66 /* Load upper half */ in restore_sigcontext32()
67 err |= __get_user(compat_regt, &rf->rf_iaoq[0]); in restore_sigcontext32()
68 regs->iaoq[0] = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
69 DBG(2,"restore_sigcontext32: upper half of iaoq[0] = %#lx\n", compat_regt); in restore_sigcontext32()
70 DBG(2,"restore_sigcontext32: sc->sc_iaoq[0] = %p => %#x\n", in restore_sigcontext32()
71 &sc->sc_iaoq[0], compat_reg); in restore_sigcontext32()
73 err |= __get_user(compat_reg, &sc->sc_iaoq[1]); in restore_sigcontext32()
74 /* Load upper half */ in restore_sigcontext32()
75 err |= __get_user(compat_regt, &rf->rf_iaoq[1]); in restore_sigcontext32()
76 regs->iaoq[1] = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
77 DBG(2,"restore_sigcontext32: upper half of iaoq[1] = %#lx\n", compat_regt); in restore_sigcontext32()
78 DBG(2,"restore_sigcontext32: sc->sc_iaoq[1] = %p => %#x\n", in restore_sigcontext32()
79 &sc->sc_iaoq[1],compat_reg); in restore_sigcontext32()
81 regs->iaoq[0],regs->iaoq[1]); in restore_sigcontext32()
83 err |= __get_user(compat_reg, &sc->sc_iasq[0]); in restore_sigcontext32()
84 /* Load the upper half for iasq */ in restore_sigcontext32()
85 err |= __get_user(compat_regt, &rf->rf_iasq[0]); in restore_sigcontext32()
86 regs->iasq[0] = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
87 DBG(2,"restore_sigcontext32: upper half of iasq[0] = %#lx\n", compat_regt); in restore_sigcontext32()
89 err |= __get_user(compat_reg, &sc->sc_iasq[1]); in restore_sigcontext32()
90 /* Load the upper half for iasq */ in restore_sigcontext32()
91 err |= __get_user(compat_regt, &rf->rf_iasq[1]); in restore_sigcontext32()
92 regs->iasq[1] = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
93 DBG(2,"restore_sigcontext32: upper half of iasq[1] = %#lx\n", compat_regt); in restore_sigcontext32()
95 regs->iasq[0],regs->iasq[1]); in restore_sigcontext32()
97 err |= __get_user(compat_reg, &sc->sc_sar); in restore_sigcontext32()
98 /* Load the upper half for sar */ in restore_sigcontext32()
99 err |= __get_user(compat_regt, &rf->rf_sar); in restore_sigcontext32()
100 regs->sar = ((u64)compat_regt << 32) | (u64)compat_reg; in restore_sigcontext32()
102 DBG(2,"restore_sigcontext32: sar is %#lx\n", regs->sar); in restore_sigcontext32()
103 DBG(2,"restore_sigcontext32: r28 is %ld\n", regs->gr[28]); in restore_sigcontext32()
110 * This is not an easy task if the kernel is 64-bit, it will require
112 * truncate for a 32-bit userspace.
133 compat_reg = (compat_uint_t)(regs->gr[31]); in setup_sigcontext32()
134 /* regs->iaoq is undefined in the syscall return path */ in setup_sigcontext32()
135 err |= __put_user(compat_reg, &sc->sc_iaoq[0]); in setup_sigcontext32()
136 DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n", in setup_sigcontext32()
137 &sc->sc_iaoq[0], compat_reg); in setup_sigcontext32()
139 /* Store upper half */ in setup_sigcontext32()
140 compat_reg = (compat_uint_t)(regs->gr[31] >> 32); in setup_sigcontext32()
141 err |= __put_user(compat_reg, &rf->rf_iaoq[0]); in setup_sigcontext32()
142 DBG(2,"setup_sigcontext32: upper half iaoq[0] = %#x\n", compat_reg); in setup_sigcontext32()
145 compat_reg = (compat_uint_t)(regs->gr[31]+4); in setup_sigcontext32()
146 err |= __put_user(compat_reg, &sc->sc_iaoq[1]); in setup_sigcontext32()
147 DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n", in setup_sigcontext32()
148 &sc->sc_iaoq[1], compat_reg); in setup_sigcontext32()
149 /* Store upper half */ in setup_sigcontext32()
150 compat_reg = (compat_uint_t)((regs->gr[31]+4) >> 32); in setup_sigcontext32()
151 err |= __put_user(compat_reg, &rf->rf_iaoq[1]); in setup_sigcontext32()
152 DBG(2,"setup_sigcontext32: upper half iaoq[1] = %#x\n", compat_reg); in setup_sigcontext32()
155 compat_reg = (compat_uint_t)(regs->sr[3]); in setup_sigcontext32()
156 err |= __put_user(compat_reg, &sc->sc_iasq[0]); in setup_sigcontext32()
157 err |= __put_user(compat_reg, &sc->sc_iasq[1]); in setup_sigcontext32()
159 /* Store upper half */ in setup_sigcontext32()
160 compat_reg = (compat_uint_t)(regs->sr[3] >> 32); in setup_sigcontext32()
161 err |= __put_user(compat_reg, &rf->rf_iasq[0]); in setup_sigcontext32()
162 err |= __put_user(compat_reg, &rf->rf_iasq[1]); in setup_sigcontext32()
164 DBG(2,"setup_sigcontext32: upper half iasq[0] = %#x\n", compat_reg); in setup_sigcontext32()
165 DBG(2,"setup_sigcontext32: upper half iasq[1] = %#x\n", compat_reg); in setup_sigcontext32()
167 regs->gr[31], regs->gr[31]+4); in setup_sigcontext32()
171 compat_reg = (compat_uint_t)(regs->iaoq[0]); in setup_sigcontext32()
172 err |= __put_user(compat_reg, &sc->sc_iaoq[0]); in setup_sigcontext32()
173 DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n", in setup_sigcontext32()
174 &sc->sc_iaoq[0], compat_reg); in setup_sigcontext32()
175 /* Store upper half */ in setup_sigcontext32()
176 compat_reg = (compat_uint_t)(regs->iaoq[0] >> 32); in setup_sigcontext32()
177 err |= __put_user(compat_reg, &rf->rf_iaoq[0]); in setup_sigcontext32()
178 DBG(2,"setup_sigcontext32: upper half iaoq[0] = %#x\n", compat_reg); in setup_sigcontext32()
180 compat_reg = (compat_uint_t)(regs->iaoq[1]); in setup_sigcontext32()
181 err |= __put_user(compat_reg, &sc->sc_iaoq[1]); in setup_sigcontext32()
182 DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n", in setup_sigcontext32()
183 &sc->sc_iaoq[1], compat_reg); in setup_sigcontext32()
184 /* Store upper half */ in setup_sigcontext32()
185 compat_reg = (compat_uint_t)(regs->iaoq[1] >> 32); in setup_sigcontext32()
186 err |= __put_user(compat_reg, &rf->rf_iaoq[1]); in setup_sigcontext32()
187 DBG(2,"setup_sigcontext32: upper half iaoq[1] = %#x\n", compat_reg); in setup_sigcontext32()
190 compat_reg = (compat_uint_t)(regs->iasq[0]); in setup_sigcontext32()
191 err |= __put_user(compat_reg, &sc->sc_iasq[0]); in setup_sigcontext32()
192 DBG(2,"setup_sigcontext32: sc->sc_iasq[0] = %p <= %#x\n", in setup_sigcontext32()
193 &sc->sc_iasq[0], compat_reg); in setup_sigcontext32()
194 /* Store upper half */ in setup_sigcontext32()
195 compat_reg = (compat_uint_t)(regs->iasq[0] >> 32); in setup_sigcontext32()
196 err |= __put_user(compat_reg, &rf->rf_iasq[0]); in setup_sigcontext32()
197 DBG(2,"setup_sigcontext32: upper half iasq[0] = %#x\n", compat_reg); in setup_sigcontext32()
200 compat_reg = (compat_uint_t)(regs->iasq[1]); in setup_sigcontext32()
201 err |= __put_user(compat_reg, &sc->sc_iasq[1]); in setup_sigcontext32()
202 DBG(2,"setup_sigcontext32: sc->sc_iasq[1] = %p <= %#x\n", in setup_sigcontext32()
203 &sc->sc_iasq[1], compat_reg); in setup_sigcontext32()
204 /* Store upper half */ in setup_sigcontext32()
205 compat_reg = (compat_uint_t)(regs->iasq[1] >> 32); in setup_sigcontext32()
206 err |= __put_user(compat_reg, &rf->rf_iasq[1]); in setup_sigcontext32()
207 DBG(2,"setup_sigcontext32: upper half iasq[1] = %#x\n", compat_reg); in setup_sigcontext32()
211 regs->iaoq[0], regs->iaoq[1]); in setup_sigcontext32()
214 err |= __put_user(flags, &sc->sc_flags); in setup_sigcontext32()
220 compat_reg = (compat_uint_t)(regs->gr[regn]); in setup_sigcontext32()
221 err |= __put_user(compat_reg, &sc->sc_gr[regn]); in setup_sigcontext32()
222 /* Store upper half */ in setup_sigcontext32()
223 compat_regb = (compat_uint_t)(regs->gr[regn] >> 32); in setup_sigcontext32()
224 err |= __put_user(compat_regb, &rf->rf_gr[regn]); in setup_sigcontext32()
232 XXX: BE WARNED FR's are 64-BIT! */ in setup_sigcontext32()
234 "sc->sc_fr size = %#lx, regs->fr size = %#lx\n", in setup_sigcontext32()
235 sizeof(regs->fr), sizeof(sc->sc_fr)); in setup_sigcontext32()
236 err |= __copy_to_user(sc->sc_fr, regs->fr, sizeof(regs->fr)); in setup_sigcontext32()
238 compat_reg = (compat_uint_t)(regs->sar); in setup_sigcontext32()
239 err |= __put_user(compat_reg, &sc->sc_sar); in setup_sigcontext32()
241 /* Store upper half */ in setup_sigcontext32()
242 compat_reg = (compat_uint_t)(regs->sar >> 32); in setup_sigcontext32()
243 err |= __put_user(compat_reg, &rf->rf_sar); in setup_sigcontext32()
244 DBG(2,"setup_sigcontext32: upper half sar = %#x\n", compat_reg); in setup_sigcontext32()
245 DBG(1,"setup_sigcontext32: r28 is %ld\n", regs->gr[28]); in setup_sigcontext32()