diff options
Diffstat (limited to 'meta/recipes-devtools/elfutils/files/debian/mips_backend.patch')
-rw-r--r-- | meta/recipes-devtools/elfutils/files/debian/mips_backend.patch | 715 |
1 files changed, 715 insertions, 0 deletions
diff --git a/meta/recipes-devtools/elfutils/files/debian/mips_backend.patch b/meta/recipes-devtools/elfutils/files/debian/mips_backend.patch new file mode 100644 index 0000000000..2e0e54b0c7 --- /dev/null +++ b/meta/recipes-devtools/elfutils/files/debian/mips_backend.patch | |||
@@ -0,0 +1,715 @@ | |||
1 | From 46d0d0ca718093486eeeedf1b44134e9e29b56f7 Mon Sep 17 00:00:00 2001 | ||
2 | From: Hongxu Jia <hongxu.jia@windriver.com> | ||
3 | Date: Wed, 16 Aug 2017 09:18:59 +0800 | ||
4 | Subject: [PATCH] mips backends | ||
5 | |||
6 | Upstream-Status: Backport [from debian] | ||
7 | |||
8 | Rebase to 0.170 | ||
9 | Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> | ||
10 | --- | ||
11 | backends/Makefile.am | 8 +- | ||
12 | backends/mips_init.c | 59 +++++++++ | ||
13 | backends/mips_regs.c | 104 ++++++++++++++++ | ||
14 | backends/mips_reloc.def | 79 ++++++++++++ | ||
15 | backends/mips_retval.c | 321 ++++++++++++++++++++++++++++++++++++++++++++++++ | ||
16 | backends/mips_symbol.c | 52 ++++++++ | ||
17 | libebl/eblopenbackend.c | 2 + | ||
18 | 7 files changed, 623 insertions(+), 2 deletions(-) | ||
19 | create mode 100644 backends/mips_init.c | ||
20 | create mode 100644 backends/mips_regs.c | ||
21 | create mode 100644 backends/mips_reloc.def | ||
22 | create mode 100644 backends/mips_retval.c | ||
23 | create mode 100644 backends/mips_symbol.c | ||
24 | |||
25 | diff --git a/backends/Makefile.am b/backends/Makefile.am | ||
26 | index 7f1f5d4..91baf6e 100644 | ||
27 | --- a/backends/Makefile.am | ||
28 | +++ b/backends/Makefile.am | ||
29 | @@ -33,12 +33,12 @@ AM_CPPFLAGS += -I$(top_srcdir)/libebl -I$(top_srcdir)/libasm \ | ||
30 | |||
31 | |||
32 | modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \ | ||
33 | - tilegx m68k bpf parisc | ||
34 | + tilegx m68k bpf parisc mips | ||
35 | libebl_pic = libebl_i386_pic.a libebl_sh_pic.a libebl_x86_64_pic.a \ | ||
36 | libebl_ia64_pic.a libebl_alpha_pic.a libebl_arm_pic.a \ | ||
37 | libebl_aarch64_pic.a libebl_sparc_pic.a libebl_ppc_pic.a \ | ||
38 | libebl_ppc64_pic.a libebl_s390_pic.a libebl_tilegx_pic.a \ | ||
39 | - libebl_m68k_pic.a libebl_bpf_pic.a libebl_parisc_pic.a | ||
40 | + libebl_m68k_pic.a libebl_bpf_pic.a libebl_parisc_pic.a libebl_mips_pic.a | ||
41 | noinst_LIBRARIES = $(libebl_pic) | ||
42 | noinst_DATA = $(libebl_pic:_pic.a=.so) | ||
43 | |||
44 | @@ -128,6 +128,10 @@ parisc_SRCS = parisc_init.c parisc_symbol.c parisc_regs.c parisc_retval.c | ||
45 | libebl_parisc_pic_a_SOURCES = $(parisc_SRCS) | ||
46 | am_libebl_parisc_pic_a_OBJECTS = $(parisc_SRCS:.c=.os) | ||
47 | |||
48 | +mips_SRCS = mips_init.c mips_symbol.c mips_regs.c mips_retval.c | ||
49 | +libebl_mips_pic_a_SOURCES = $(mips_SRCS) | ||
50 | +am_libebl_mips_pic_a_OBJECTS = $(mips_SRCS:.c=.os) | ||
51 | + | ||
52 | libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw) $(libeu) | ||
53 | @rm -f $(@:.so=.map) | ||
54 | $(AM_V_at)echo 'ELFUTILS_$(PACKAGE_VERSION) { global: $*_init; local: *; };' \ | ||
55 | diff --git a/backends/mips_init.c b/backends/mips_init.c | ||
56 | new file mode 100644 | ||
57 | index 0000000..975c04e | ||
58 | --- /dev/null | ||
59 | +++ b/backends/mips_init.c | ||
60 | @@ -0,0 +1,59 @@ | ||
61 | +/* Initialization of mips specific backend library. | ||
62 | + Copyright (C) 2006 Red Hat, Inc. | ||
63 | + This file is part of Red Hat elfutils. | ||
64 | + | ||
65 | + Red Hat elfutils is free software; you can redistribute it and/or modify | ||
66 | + it under the terms of the GNU General Public License as published by the | ||
67 | + Free Software Foundation; version 2 of the License. | ||
68 | + | ||
69 | + Red Hat elfutils is distributed in the hope that it will be useful, but | ||
70 | + WITHOUT ANY WARRANTY; without even the implied warranty of | ||
71 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
72 | + General Public License for more details. | ||
73 | + | ||
74 | + You should have received a copy of the GNU General Public License along | ||
75 | + with Red Hat elfutils; if not, write to the Free Software Foundation, | ||
76 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. | ||
77 | + | ||
78 | + Red Hat elfutils is an included package of the Open Invention Network. | ||
79 | + An included package of the Open Invention Network is a package for which | ||
80 | + Open Invention Network licensees cross-license their patents. No patent | ||
81 | + license is granted, either expressly or impliedly, by designation as an | ||
82 | + included package. Should you wish to participate in the Open Invention | ||
83 | + Network licensing program, please visit www.openinventionnetwork.com | ||
84 | + <http://www.openinventionnetwork.com>. */ | ||
85 | + | ||
86 | +#ifdef HAVE_CONFIG_H | ||
87 | +# include <config.h> | ||
88 | +#endif | ||
89 | + | ||
90 | +#define BACKEND mips_ | ||
91 | +#define RELOC_PREFIX R_MIPS_ | ||
92 | +#include "libebl_CPU.h" | ||
93 | + | ||
94 | +/* This defines the common reloc hooks based on mips_reloc.def. */ | ||
95 | +#include "common-reloc.c" | ||
96 | + | ||
97 | +const char * | ||
98 | +mips_init (Elf *elf __attribute__ ((unused)), | ||
99 | + GElf_Half machine __attribute__ ((unused)), | ||
100 | + Ebl *eh, | ||
101 | + size_t ehlen) | ||
102 | +{ | ||
103 | + /* Check whether the Elf_BH object has a sufficent size. */ | ||
104 | + if (ehlen < sizeof (Ebl)) | ||
105 | + return NULL; | ||
106 | + | ||
107 | + /* We handle it. */ | ||
108 | + if (machine == EM_MIPS) | ||
109 | + eh->name = "MIPS R3000 big-endian"; | ||
110 | + else if (machine == EM_MIPS_RS3_LE) | ||
111 | + eh->name = "MIPS R3000 little-endian"; | ||
112 | + | ||
113 | + mips_init_reloc (eh); | ||
114 | + HOOK (eh, reloc_simple_type); | ||
115 | + HOOK (eh, return_value_location); | ||
116 | + HOOK (eh, register_info); | ||
117 | + | ||
118 | + return MODVERSION; | ||
119 | +} | ||
120 | diff --git a/backends/mips_regs.c b/backends/mips_regs.c | ||
121 | new file mode 100644 | ||
122 | index 0000000..44f86cb | ||
123 | --- /dev/null | ||
124 | +++ b/backends/mips_regs.c | ||
125 | @@ -0,0 +1,104 @@ | ||
126 | +/* Register names and numbers for MIPS DWARF. | ||
127 | + Copyright (C) 2006 Red Hat, Inc. | ||
128 | + This file is part of Red Hat elfutils. | ||
129 | + | ||
130 | + Red Hat elfutils is free software; you can redistribute it and/or modify | ||
131 | + it under the terms of the GNU General Public License as published by the | ||
132 | + Free Software Foundation; version 2 of the License. | ||
133 | + | ||
134 | + Red Hat elfutils is distributed in the hope that it will be useful, but | ||
135 | + WITHOUT ANY WARRANTY; without even the implied warranty of | ||
136 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
137 | + General Public License for more details. | ||
138 | + | ||
139 | + You should have received a copy of the GNU General Public License along | ||
140 | + with Red Hat elfutils; if not, write to the Free Software Foundation, | ||
141 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. | ||
142 | + | ||
143 | + Red Hat elfutils is an included package of the Open Invention Network. | ||
144 | + An included package of the Open Invention Network is a package for which | ||
145 | + Open Invention Network licensees cross-license their patents. No patent | ||
146 | + license is granted, either expressly or impliedly, by designation as an | ||
147 | + included package. Should you wish to participate in the Open Invention | ||
148 | + Network licensing program, please visit www.openinventionnetwork.com | ||
149 | + <http://www.openinventionnetwork.com>. */ | ||
150 | + | ||
151 | +#ifdef HAVE_CONFIG_H | ||
152 | +# include <config.h> | ||
153 | +#endif | ||
154 | + | ||
155 | +#include <string.h> | ||
156 | +#include <dwarf.h> | ||
157 | + | ||
158 | +#define BACKEND mips_ | ||
159 | +#include "libebl_CPU.h" | ||
160 | + | ||
161 | +ssize_t | ||
162 | +mips_register_info (Ebl *ebl __attribute__((unused)), | ||
163 | + int regno, char *name, size_t namelen, | ||
164 | + const char **prefix, const char **setname, | ||
165 | + int *bits, int *type) | ||
166 | +{ | ||
167 | + if (name == NULL) | ||
168 | + return 66; | ||
169 | + | ||
170 | + if (regno < 0 || regno > 65 || namelen < 4) | ||
171 | + return -1; | ||
172 | + | ||
173 | + *prefix = "$"; | ||
174 | + | ||
175 | + if (regno < 32) | ||
176 | + { | ||
177 | + *setname = "integer"; | ||
178 | + *type = DW_ATE_signed; | ||
179 | + *bits = 32; | ||
180 | + if (regno < 32 + 10) | ||
181 | + { | ||
182 | + name[0] = regno + '0'; | ||
183 | + namelen = 1; | ||
184 | + } | ||
185 | + else | ||
186 | + { | ||
187 | + name[0] = (regno / 10) + '0'; | ||
188 | + name[1] = (regno % 10) + '0'; | ||
189 | + namelen = 2; | ||
190 | + } | ||
191 | + } | ||
192 | + else if (regno < 64) | ||
193 | + { | ||
194 | + *setname = "FPU"; | ||
195 | + *type = DW_ATE_float; | ||
196 | + *bits = 32; | ||
197 | + name[0] = 'f'; | ||
198 | + if (regno < 32 + 10) | ||
199 | + { | ||
200 | + name[1] = (regno - 32) + '0'; | ||
201 | + namelen = 2; | ||
202 | + } | ||
203 | + else | ||
204 | + { | ||
205 | + name[1] = (regno - 32) / 10 + '0'; | ||
206 | + name[2] = (regno - 32) % 10 + '0'; | ||
207 | + namelen = 3; | ||
208 | + } | ||
209 | + } | ||
210 | + else if (regno == 64) | ||
211 | + { | ||
212 | + *type = DW_ATE_signed; | ||
213 | + *bits = 32; | ||
214 | + name[0] = 'h'; | ||
215 | + name[1] = 'i'; | ||
216 | + namelen = 2; | ||
217 | + } | ||
218 | + else | ||
219 | + { | ||
220 | + *type = DW_ATE_signed; | ||
221 | + *bits = 32; | ||
222 | + name[0] = 'l'; | ||
223 | + name[1] = 'o'; | ||
224 | + namelen = 2; | ||
225 | + } | ||
226 | + | ||
227 | + name[namelen++] = '\0'; | ||
228 | + return namelen; | ||
229 | +} | ||
230 | diff --git a/backends/mips_reloc.def b/backends/mips_reloc.def | ||
231 | new file mode 100644 | ||
232 | index 0000000..4579970 | ||
233 | --- /dev/null | ||
234 | +++ b/backends/mips_reloc.def | ||
235 | @@ -0,0 +1,79 @@ | ||
236 | +/* List the relocation types for mips. -*- C -*- | ||
237 | + Copyright (C) 2006 Red Hat, Inc. | ||
238 | + This file is part of Red Hat elfutils. | ||
239 | + | ||
240 | + Red Hat elfutils is free software; you can redistribute it and/or modify | ||
241 | + it under the terms of the GNU General Public License as published by the | ||
242 | + Free Software Foundation; version 2 of the License. | ||
243 | + | ||
244 | + Red Hat elfutils is distributed in the hope that it will be useful, but | ||
245 | + WITHOUT ANY WARRANTY; without even the implied warranty of | ||
246 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
247 | + General Public License for more details. | ||
248 | + | ||
249 | + You should have received a copy of the GNU General Public License along | ||
250 | + with Red Hat elfutils; if not, write to the Free Software Foundation, | ||
251 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. | ||
252 | + | ||
253 | + Red Hat elfutils is an included package of the Open Invention Network. | ||
254 | + An included package of the Open Invention Network is a package for which | ||
255 | + Open Invention Network licensees cross-license their patents. No patent | ||
256 | + license is granted, either expressly or impliedly, by designation as an | ||
257 | + included package. Should you wish to participate in the Open Invention | ||
258 | + Network licensing program, please visit www.openinventionnetwork.com | ||
259 | + <http://www.openinventionnetwork.com>. */ | ||
260 | + | ||
261 | +/* NAME, REL|EXEC|DYN */ | ||
262 | + | ||
263 | +RELOC_TYPE (NONE, 0) | ||
264 | +RELOC_TYPE (16, 0) | ||
265 | +RELOC_TYPE (32, 0) | ||
266 | +RELOC_TYPE (REL32, 0) | ||
267 | +RELOC_TYPE (26, 0) | ||
268 | +RELOC_TYPE (HI16, 0) | ||
269 | +RELOC_TYPE (LO16, 0) | ||
270 | +RELOC_TYPE (GPREL16, 0) | ||
271 | +RELOC_TYPE (LITERAL, 0) | ||
272 | +RELOC_TYPE (GOT16, 0) | ||
273 | +RELOC_TYPE (PC16, 0) | ||
274 | +RELOC_TYPE (CALL16, 0) | ||
275 | +RELOC_TYPE (GPREL32, 0) | ||
276 | + | ||
277 | +RELOC_TYPE (SHIFT5, 0) | ||
278 | +RELOC_TYPE (SHIFT6, 0) | ||
279 | +RELOC_TYPE (64, 0) | ||
280 | +RELOC_TYPE (GOT_DISP, 0) | ||
281 | +RELOC_TYPE (GOT_PAGE, 0) | ||
282 | +RELOC_TYPE (GOT_OFST, 0) | ||
283 | +RELOC_TYPE (GOT_HI16, 0) | ||
284 | +RELOC_TYPE (GOT_LO16, 0) | ||
285 | +RELOC_TYPE (SUB, 0) | ||
286 | +RELOC_TYPE (INSERT_A, 0) | ||
287 | +RELOC_TYPE (INSERT_B, 0) | ||
288 | +RELOC_TYPE (DELETE, 0) | ||
289 | +RELOC_TYPE (HIGHER, 0) | ||
290 | +RELOC_TYPE (HIGHEST, 0) | ||
291 | +RELOC_TYPE (CALL_HI16, 0) | ||
292 | +RELOC_TYPE (CALL_LO16, 0) | ||
293 | +RELOC_TYPE (SCN_DISP, 0) | ||
294 | +RELOC_TYPE (REL16, 0) | ||
295 | +RELOC_TYPE (ADD_IMMEDIATE, 0) | ||
296 | +RELOC_TYPE (PJUMP, 0) | ||
297 | +RELOC_TYPE (RELGOT, 0) | ||
298 | +RELOC_TYPE (JALR, 0) | ||
299 | +RELOC_TYPE (TLS_DTPMOD32, 0) | ||
300 | +RELOC_TYPE (TLS_DTPREL32, 0) | ||
301 | +RELOC_TYPE (TLS_DTPMOD64, 0) | ||
302 | +RELOC_TYPE (TLS_DTPREL64, 0) | ||
303 | +RELOC_TYPE (TLS_GD, 0) | ||
304 | +RELOC_TYPE (TLS_LDM, 0) | ||
305 | +RELOC_TYPE (TLS_DTPREL_HI16, 0) | ||
306 | +RELOC_TYPE (TLS_DTPREL_LO16, 0) | ||
307 | +RELOC_TYPE (TLS_GOTTPREL, 0) | ||
308 | +RELOC_TYPE (TLS_TPREL32, 0) | ||
309 | +RELOC_TYPE (TLS_TPREL64, 0) | ||
310 | +RELOC_TYPE (TLS_TPREL_HI16, 0) | ||
311 | +RELOC_TYPE (TLS_TPREL_LO16, 0) | ||
312 | + | ||
313 | +#define NO_COPY_RELOC 1 | ||
314 | +#define NO_RELATIVE_RELOC 1 | ||
315 | diff --git a/backends/mips_retval.c b/backends/mips_retval.c | ||
316 | new file mode 100644 | ||
317 | index 0000000..656cd1f | ||
318 | --- /dev/null | ||
319 | +++ b/backends/mips_retval.c | ||
320 | @@ -0,0 +1,321 @@ | ||
321 | +/* Function return value location for Linux/mips ABI. | ||
322 | + Copyright (C) 2005 Red Hat, Inc. | ||
323 | + This file is part of Red Hat elfutils. | ||
324 | + | ||
325 | + Red Hat elfutils is free software; you can redistribute it and/or modify | ||
326 | + it under the terms of the GNU General Public License as published by the | ||
327 | + Free Software Foundation; version 2 of the License. | ||
328 | + | ||
329 | + Red Hat elfutils is distributed in the hope that it will be useful, but | ||
330 | + WITHOUT ANY WARRANTY; without even the implied warranty of | ||
331 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
332 | + General Public License for more details. | ||
333 | + | ||
334 | + You should have received a copy of the GNU General Public License along | ||
335 | + with Red Hat elfutils; if not, write to the Free Software Foundation, | ||
336 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. | ||
337 | + | ||
338 | + Red Hat elfutils is an included package of the Open Invention Network. | ||
339 | + An included package of the Open Invention Network is a package for which | ||
340 | + Open Invention Network licensees cross-license their patents. No patent | ||
341 | + license is granted, either expressly or impliedly, by designation as an | ||
342 | + included package. Should you wish to participate in the Open Invention | ||
343 | + Network licensing program, please visit www.openinventionnetwork.com | ||
344 | + <http://www.openinventionnetwork.com>. */ | ||
345 | + | ||
346 | +#ifdef HAVE_CONFIG_H | ||
347 | +# include <config.h> | ||
348 | +#endif | ||
349 | + | ||
350 | +#include <string.h> | ||
351 | +#include <assert.h> | ||
352 | +#include <dwarf.h> | ||
353 | +#include <elf.h> | ||
354 | + | ||
355 | +#include "../libebl/libeblP.h" | ||
356 | +#include "../libdw/libdwP.h" | ||
357 | + | ||
358 | +#define BACKEND mips_ | ||
359 | +#include "libebl_CPU.h" | ||
360 | + | ||
361 | +/* The ABI of the file. Also see EF_MIPS_ABI2 above. */ | ||
362 | +#define EF_MIPS_ABI 0x0000F000 | ||
363 | + | ||
364 | +/* The original o32 abi. */ | ||
365 | +#define E_MIPS_ABI_O32 0x00001000 | ||
366 | + | ||
367 | +/* O32 extended to work on 64 bit architectures */ | ||
368 | +#define E_MIPS_ABI_O64 0x00002000 | ||
369 | + | ||
370 | +/* EABI in 32 bit mode */ | ||
371 | +#define E_MIPS_ABI_EABI32 0x00003000 | ||
372 | + | ||
373 | +/* EABI in 64 bit mode */ | ||
374 | +#define E_MIPS_ABI_EABI64 0x00004000 | ||
375 | + | ||
376 | +/* All the possible MIPS ABIs. */ | ||
377 | +enum mips_abi | ||
378 | + { | ||
379 | + MIPS_ABI_UNKNOWN = 0, | ||
380 | + MIPS_ABI_N32, | ||
381 | + MIPS_ABI_O32, | ||
382 | + MIPS_ABI_N64, | ||
383 | + MIPS_ABI_O64, | ||
384 | + MIPS_ABI_EABI32, | ||
385 | + MIPS_ABI_EABI64, | ||
386 | + MIPS_ABI_LAST | ||
387 | + }; | ||
388 | + | ||
389 | +/* Find the mips ABI of the current file */ | ||
390 | +enum mips_abi find_mips_abi(Elf *elf) | ||
391 | +{ | ||
392 | + GElf_Ehdr ehdr_mem; | ||
393 | + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); | ||
394 | + | ||
395 | + if (ehdr == NULL) | ||
396 | + return MIPS_ABI_LAST; | ||
397 | + | ||
398 | + GElf_Word elf_flags = ehdr->e_flags; | ||
399 | + | ||
400 | + /* Check elf_flags to see if it specifies the ABI being used. */ | ||
401 | + switch ((elf_flags & EF_MIPS_ABI)) | ||
402 | + { | ||
403 | + case E_MIPS_ABI_O32: | ||
404 | + return MIPS_ABI_O32; | ||
405 | + case E_MIPS_ABI_O64: | ||
406 | + return MIPS_ABI_O64; | ||
407 | + case E_MIPS_ABI_EABI32: | ||
408 | + return MIPS_ABI_EABI32; | ||
409 | + case E_MIPS_ABI_EABI64: | ||
410 | + return MIPS_ABI_EABI64; | ||
411 | + default: | ||
412 | + if ((elf_flags & EF_MIPS_ABI2)) | ||
413 | + return MIPS_ABI_N32; | ||
414 | + } | ||
415 | + | ||
416 | + /* GCC creates a pseudo-section whose name describes the ABI. */ | ||
417 | + size_t shstrndx; | ||
418 | + if (elf_getshdrstrndx (elf, &shstrndx) < 0) | ||
419 | + return MIPS_ABI_LAST; | ||
420 | + | ||
421 | + const char *name; | ||
422 | + Elf_Scn *scn = NULL; | ||
423 | + while ((scn = elf_nextscn (elf, scn)) != NULL) | ||
424 | + { | ||
425 | + GElf_Shdr shdr_mem; | ||
426 | + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); | ||
427 | + if (shdr == NULL) | ||
428 | + return MIPS_ABI_LAST; | ||
429 | + | ||
430 | + name = elf_strptr (elf, shstrndx, shdr->sh_name) ?: ""; | ||
431 | + if (strncmp (name, ".mdebug.", 8) != 0) | ||
432 | + continue; | ||
433 | + | ||
434 | + if (strcmp (name, ".mdebug.abi32") == 0) | ||
435 | + return MIPS_ABI_O32; | ||
436 | + else if (strcmp (name, ".mdebug.abiN32") == 0) | ||
437 | + return MIPS_ABI_N32; | ||
438 | + else if (strcmp (name, ".mdebug.abi64") == 0) | ||
439 | + return MIPS_ABI_N64; | ||
440 | + else if (strcmp (name, ".mdebug.abiO64") == 0) | ||
441 | + return MIPS_ABI_O64; | ||
442 | + else if (strcmp (name, ".mdebug.eabi32") == 0) | ||
443 | + return MIPS_ABI_EABI32; | ||
444 | + else if (strcmp (name, ".mdebug.eabi64") == 0) | ||
445 | + return MIPS_ABI_EABI64; | ||
446 | + else | ||
447 | + return MIPS_ABI_UNKNOWN; | ||
448 | + } | ||
449 | + | ||
450 | + return MIPS_ABI_UNKNOWN; | ||
451 | +} | ||
452 | + | ||
453 | +unsigned int | ||
454 | +mips_abi_regsize (enum mips_abi abi) | ||
455 | +{ | ||
456 | + switch (abi) | ||
457 | + { | ||
458 | + case MIPS_ABI_EABI32: | ||
459 | + case MIPS_ABI_O32: | ||
460 | + return 4; | ||
461 | + case MIPS_ABI_N32: | ||
462 | + case MIPS_ABI_N64: | ||
463 | + case MIPS_ABI_O64: | ||
464 | + case MIPS_ABI_EABI64: | ||
465 | + return 8; | ||
466 | + case MIPS_ABI_UNKNOWN: | ||
467 | + case MIPS_ABI_LAST: | ||
468 | + default: | ||
469 | + return 0; | ||
470 | + } | ||
471 | +} | ||
472 | + | ||
473 | + | ||
474 | +/* $v0 or pair $v0, $v1 */ | ||
475 | +static const Dwarf_Op loc_intreg_o32[] = | ||
476 | + { | ||
477 | + { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 }, | ||
478 | + { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 }, | ||
479 | + }; | ||
480 | + | ||
481 | +static const Dwarf_Op loc_intreg[] = | ||
482 | + { | ||
483 | + { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 8 }, | ||
484 | + { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 8 }, | ||
485 | + }; | ||
486 | +#define nloc_intreg 1 | ||
487 | +#define nloc_intregpair 4 | ||
488 | + | ||
489 | +/* $f0 (float), or pair $f0, $f1 (double). | ||
490 | + * f2/f3 are used for COMPLEX (= 2 doubles) returns in Fortran */ | ||
491 | +static const Dwarf_Op loc_fpreg_o32[] = | ||
492 | + { | ||
493 | + { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 4 }, | ||
494 | + { .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 4 }, | ||
495 | + { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 4 }, | ||
496 | + { .atom = DW_OP_regx, .number = 35 }, { .atom = DW_OP_piece, .number = 4 }, | ||
497 | + }; | ||
498 | + | ||
499 | +/* $f0, or pair $f0, $f2. */ | ||
500 | +static const Dwarf_Op loc_fpreg[] = | ||
501 | + { | ||
502 | + { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 8 }, | ||
503 | + { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 8 }, | ||
504 | + }; | ||
505 | +#define nloc_fpreg 1 | ||
506 | +#define nloc_fpregpair 4 | ||
507 | +#define nloc_fpregquad 8 | ||
508 | + | ||
509 | +/* The return value is a structure and is actually stored in stack space | ||
510 | + passed in a hidden argument by the caller. But, the compiler | ||
511 | + helpfully returns the address of that space in $v0. */ | ||
512 | +static const Dwarf_Op loc_aggregate[] = | ||
513 | + { | ||
514 | + { .atom = DW_OP_breg2, .number = 0 } | ||
515 | + }; | ||
516 | +#define nloc_aggregate 1 | ||
517 | + | ||
518 | +int | ||
519 | +mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp) | ||
520 | +{ | ||
521 | + /* First find the ABI used by the elf object */ | ||
522 | + enum mips_abi abi = find_mips_abi(functypedie->cu->dbg->elf); | ||
523 | + | ||
524 | + /* Something went seriously wrong while trying to figure out the ABI */ | ||
525 | + if (abi == MIPS_ABI_LAST) | ||
526 | + return -1; | ||
527 | + | ||
528 | + /* We couldn't identify the ABI, but the file seems valid */ | ||
529 | + if (abi == MIPS_ABI_UNKNOWN) | ||
530 | + return -2; | ||
531 | + | ||
532 | + /* Can't handle EABI variants */ | ||
533 | + if ((abi == MIPS_ABI_EABI32) || (abi == MIPS_ABI_EABI64)) | ||
534 | + return -2; | ||
535 | + | ||
536 | + unsigned int regsize = mips_abi_regsize (abi); | ||
537 | + if (!regsize) | ||
538 | + return -2; | ||
539 | + | ||
540 | + /* Start with the function's type, and get the DW_AT_type attribute, | ||
541 | + which is the type of the return value. */ | ||
542 | + | ||
543 | + Dwarf_Attribute attr_mem; | ||
544 | + Dwarf_Attribute *attr = dwarf_attr_integrate (functypedie, DW_AT_type, &attr_mem); | ||
545 | + if (attr == NULL) | ||
546 | + /* The function has no return value, like a `void' function in C. */ | ||
547 | + return 0; | ||
548 | + | ||
549 | + Dwarf_Die die_mem; | ||
550 | + Dwarf_Die *typedie = dwarf_formref_die (attr, &die_mem); | ||
551 | + int tag = dwarf_tag (typedie); | ||
552 | + | ||
553 | + /* Follow typedefs and qualifiers to get to the actual type. */ | ||
554 | + while (tag == DW_TAG_typedef | ||
555 | + || tag == DW_TAG_const_type || tag == DW_TAG_volatile_type | ||
556 | + || tag == DW_TAG_restrict_type) | ||
557 | + { | ||
558 | + attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem); | ||
559 | + typedie = dwarf_formref_die (attr, &die_mem); | ||
560 | + tag = dwarf_tag (typedie); | ||
561 | + } | ||
562 | + | ||
563 | + switch (tag) | ||
564 | + { | ||
565 | + case -1: | ||
566 | + return -1; | ||
567 | + | ||
568 | + case DW_TAG_subrange_type: | ||
569 | + if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size)) | ||
570 | + { | ||
571 | + attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem); | ||
572 | + typedie = dwarf_formref_die (attr, &die_mem); | ||
573 | + tag = dwarf_tag (typedie); | ||
574 | + } | ||
575 | + /* Fall through. */ | ||
576 | + | ||
577 | + case DW_TAG_base_type: | ||
578 | + case DW_TAG_enumeration_type: | ||
579 | + case DW_TAG_pointer_type: | ||
580 | + case DW_TAG_ptr_to_member_type: | ||
581 | + { | ||
582 | + Dwarf_Word size; | ||
583 | + if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size, | ||
584 | + &attr_mem), &size) != 0) | ||
585 | + { | ||
586 | + if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type) | ||
587 | + size = regsize; | ||
588 | + else | ||
589 | + return -1; | ||
590 | + } | ||
591 | + if (tag == DW_TAG_base_type) | ||
592 | + { | ||
593 | + Dwarf_Word encoding; | ||
594 | + if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding, | ||
595 | + &attr_mem), &encoding) != 0) | ||
596 | + return -1; | ||
597 | + | ||
598 | +#define ABI_LOC(loc, regsize) ((regsize) == 4 ? (loc ## _o32) : (loc)) | ||
599 | + | ||
600 | + if (encoding == DW_ATE_float) | ||
601 | + { | ||
602 | + *locp = ABI_LOC(loc_fpreg, regsize); | ||
603 | + if (size <= regsize) | ||
604 | + return nloc_fpreg; | ||
605 | + | ||
606 | + if (size <= 2*regsize) | ||
607 | + return nloc_fpregpair; | ||
608 | + | ||
609 | + if (size <= 4*regsize && abi == MIPS_ABI_O32) | ||
610 | + return nloc_fpregquad; | ||
611 | + | ||
612 | + goto aggregate; | ||
613 | + } | ||
614 | + } | ||
615 | + *locp = ABI_LOC(loc_intreg, regsize); | ||
616 | + if (size <= regsize) | ||
617 | + return nloc_intreg; | ||
618 | + if (size <= 2*regsize) | ||
619 | + return nloc_intregpair; | ||
620 | + | ||
621 | + /* Else fall through. Shouldn't happen though (at least with gcc) */ | ||
622 | + } | ||
623 | + | ||
624 | + case DW_TAG_structure_type: | ||
625 | + case DW_TAG_class_type: | ||
626 | + case DW_TAG_union_type: | ||
627 | + case DW_TAG_array_type: | ||
628 | + aggregate: | ||
629 | + /* XXX TODO: Can't handle structure return with other ABI's yet :-/ */ | ||
630 | + if ((abi != MIPS_ABI_O32) && (abi != MIPS_ABI_O64)) | ||
631 | + return -2; | ||
632 | + | ||
633 | + *locp = loc_aggregate; | ||
634 | + return nloc_aggregate; | ||
635 | + } | ||
636 | + | ||
637 | + /* XXX We don't have a good way to return specific errors from ebl calls. | ||
638 | + This value means we do not understand the type, but it is well-formed | ||
639 | + DWARF and might be valid. */ | ||
640 | + return -2; | ||
641 | +} | ||
642 | diff --git a/backends/mips_symbol.c b/backends/mips_symbol.c | ||
643 | new file mode 100644 | ||
644 | index 0000000..ba465fe | ||
645 | --- /dev/null | ||
646 | +++ b/backends/mips_symbol.c | ||
647 | @@ -0,0 +1,52 @@ | ||
648 | +/* MIPS specific symbolic name handling. | ||
649 | + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. | ||
650 | + This file is part of Red Hat elfutils. | ||
651 | + Written by Jakub Jelinek <jakub@redhat.com>, 2002. | ||
652 | + | ||
653 | + Red Hat elfutils is free software; you can redistribute it and/or modify | ||
654 | + it under the terms of the GNU General Public License as published by the | ||
655 | + Free Software Foundation; version 2 of the License. | ||
656 | + | ||
657 | + Red Hat elfutils is distributed in the hope that it will be useful, but | ||
658 | + WITHOUT ANY WARRANTY; without even the implied warranty of | ||
659 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
660 | + General Public License for more details. | ||
661 | + | ||
662 | + You should have received a copy of the GNU General Public License along | ||
663 | + with Red Hat elfutils; if not, write to the Free Software Foundation, | ||
664 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. | ||
665 | + | ||
666 | + Red Hat elfutils is an included package of the Open Invention Network. | ||
667 | + An included package of the Open Invention Network is a package for which | ||
668 | + Open Invention Network licensees cross-license their patents. No patent | ||
669 | + license is granted, either expressly or impliedly, by designation as an | ||
670 | + included package. Should you wish to participate in the Open Invention | ||
671 | + Network licensing program, please visit www.openinventionnetwork.com | ||
672 | + <http://www.openinventionnetwork.com>. */ | ||
673 | + | ||
674 | +#ifdef HAVE_CONFIG_H | ||
675 | +# include <config.h> | ||
676 | +#endif | ||
677 | + | ||
678 | +#include <elf.h> | ||
679 | +#include <stddef.h> | ||
680 | + | ||
681 | +#define BACKEND mips_ | ||
682 | +#include "libebl_CPU.h" | ||
683 | + | ||
684 | +/* Check for the simple reloc types. */ | ||
685 | +Elf_Type | ||
686 | +mips_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type) | ||
687 | +{ | ||
688 | + switch (type) | ||
689 | + { | ||
690 | + case R_MIPS_16: | ||
691 | + return ELF_T_HALF; | ||
692 | + case R_MIPS_32: | ||
693 | + return ELF_T_WORD; | ||
694 | + case R_MIPS_64: | ||
695 | + return ELF_T_XWORD; | ||
696 | + default: | ||
697 | + return ELF_T_NUM; | ||
698 | + } | ||
699 | +} | ||
700 | diff --git a/libebl/eblopenbackend.c b/libebl/eblopenbackend.c | ||
701 | index 1f81477..5371396 100644 | ||
702 | --- a/libebl/eblopenbackend.c | ||
703 | +++ b/libebl/eblopenbackend.c | ||
704 | @@ -72,6 +72,8 @@ static const struct | ||
705 | { "sparc", "elf_sparc", "sparc", 5, EM_SPARC, 0, 0 }, | ||
706 | { "sparc", "elf_sparcv8plus", "sparc", 5, EM_SPARC32PLUS, 0, 0 }, | ||
707 | { "s390", "ebl_s390", "s390", 4, EM_S390, 0, 0 }, | ||
708 | + { "mips", "elf_mips", "mips", 4, EM_MIPS, 0, 0 }, | ||
709 | + { "mips", "elf_mipsel", "mipsel", 4, EM_MIPS_RS3_LE, 0, 0 }, | ||
710 | |||
711 | { "m32", "elf_m32", "m32", 3, EM_M32, 0, 0 }, | ||
712 | { "m68k", "elf_m68k", "m68k", 4, EM_68K, ELFCLASS32, ELFDATA2MSB }, | ||
713 | -- | ||
714 | 1.8.3.1 | ||
715 | |||