powerpc/lib/test-code-patching.c

11 static int __init instr_is_branch_to_addr(const u32 *instr, unsigned long addr)
13 	if (instr_is_branch_iform(ppc_inst_read(instr)) ||
14 	    instr_is_branch_bform(ppc_inst_read(instr)))
15 		return branch_target(instr) == addr;
33 	ppc_inst_t instr;
73 	err = create_branch(&instr, iptr, addr, BRANCH_SET_LINK);
74 	ppc_inst_write(iptr, instr);
78 	err = create_branch(&instr, iptr, addr - 0x100, BRANCH_SET_LINK);
79 	ppc_inst_write(iptr, instr);
83 	err = create_branch(&instr, iptr, addr + 0x100, 0);
84 	ppc_inst_write(iptr, instr);
88 	err = create_branch(&instr, iptr, addr - 0x2000000, BRANCH_SET_LINK);
89 	ppc_inst_write(iptr, instr);
93 	err = create_branch(&instr, iptr, addr - 0x2000004, BRANCH_SET_LINK);
97 	err = create_branch(&instr, iptr, addr + 0x2000000, BRANCH_SET_LINK);
101 	err = create_branch(&instr, iptr, addr + 3, BRANCH_SET_LINK);
105 	err = create_branch(&instr, iptr, addr, 0xFFFFFFFC);
106 	ppc_inst_write(iptr, instr);
108 	check(ppc_inst_equal(instr, ppc_inst(0x48000000)));
115 	ppc_inst_t instr;
120 	create_branch(&instr, iptr, dest, BRANCH_SET_LINK);
121 	patch_instruction(iptr, instr);
129 	ppc_inst_t instr;
165 	err = create_cond_branch(&instr, iptr, addr, flags);
166 	ppc_inst_write(iptr, instr);
170 	err = create_cond_branch(&instr, iptr, addr - 0x100, flags);
171 	ppc_inst_write(iptr, instr);
175 	err = create_cond_branch(&instr, iptr, addr + 0x100, flags);
176 	ppc_inst_write(iptr, instr);
180 	err = create_cond_branch(&instr, iptr, addr - 0x8000, flags);
181 	ppc_inst_write(iptr, instr);
185 	err = create_cond_branch(&instr, iptr, addr - 0x8004, flags);
189 	err = create_cond_branch(&instr, iptr, addr + 0x8000, flags);
193 	err = create_cond_branch(&instr, iptr, addr + 3, flags);
197 	err = create_cond_branch(&instr, iptr, addr, 0xFFFFFFFC);
198 	ppc_inst_write(iptr, instr);
200 	check(ppc_inst_equal(instr, ppc_inst(0x43FF0000)));
207 	ppc_inst_t instr;
218 	create_branch(&instr, p, addr, 0);
219 	ppc_inst_write(p, instr);
222 	translate_branch(&instr, q, p);
223 	ppc_inst_write(q, instr);
229 	create_branch(&instr, p, addr, 0);
230 	ppc_inst_write(p, instr);
232 	translate_branch(&instr, q, p);
233 	ppc_inst_write(q, instr);
241 	create_branch(&instr, p, addr, 0);
242 	ppc_inst_write(p, instr);
244 	translate_branch(&instr, q, p);
245 	ppc_inst_write(q, instr);
253 	create_branch(&instr, p, addr, BRANCH_SET_LINK);
254 	ppc_inst_write(p, instr);
256 	translate_branch(&instr, q, p);
257 	ppc_inst_write(q, instr);
264 	create_branch(&instr, p, addr, 0);
265 	ppc_inst_write(p, instr);
267 	translate_branch(&instr, q, p);
268 	ppc_inst_write(q, instr);
278 	create_cond_branch(&instr, p, addr, 0);
279 	ppc_inst_write(p, instr);
282 	translate_branch(&instr, q, p);
283 	ppc_inst_write(q, instr);
289 	create_cond_branch(&instr, p, addr, 0xFFFFFFFC);
290 	ppc_inst_write(p, instr);
292 	translate_branch(&instr, q, p);
293 	ppc_inst_write(q, instr);
301 	create_cond_branch(&instr, p, addr, 0xFFFFFFFC);
302 	ppc_inst_write(p, instr);
304 	translate_branch(&instr, q, p);
305 	ppc_inst_write(q, instr);
313 	create_cond_branch(&instr, p, addr, BRANCH_SET_LINK);
314 	ppc_inst_write(p, instr);
316 	translate_branch(&instr, q, p);
317 	ppc_inst_write(q, instr);
324 	create_cond_branch(&instr, p, addr, 0);
325 	ppc_inst_write(p, instr);
327 	translate_branch(&instr, q, p);
328 	ppc_inst_write(q, instr);