Bug Summary

File:src/gnu/usr.bin/binutils/bfd/archures.c
Warning:line 629, column 10
Access to field 'arch_info' results in a dereference of a null pointer (loaded from variable 'abfd')

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name archures.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/bfd -resource-dir /usr/local/lib/clang/13.0.0 -D HAVE_CONFIG_H -I . -I /usr/src/gnu/usr.bin/binutils/bfd -I . -D _GNU_SOURCE -D NETBSD_CORE -I . -I /usr/src/gnu/usr.bin/binutils/bfd -I /usr/src/gnu/usr.bin/binutils/bfd/../include -I /usr/src/gnu/usr.bin/binutils/bfd/../intl -I ../intl -D PIE_DEFAULT=1 -D DEFAULT_VECTOR=bfd_elf64_x86_64_vec -D SELECT_VECS=&bfd_elf64_x86_64_vec,&bfd_elf32_i386_vec,&i386coff_vec,&bfd_efi_app_ia32_vec,&bfd_efi_app_x86_64_vec,&bfd_elf64_little_generic_vec,&bfd_elf64_big_generic_vec,&bfd_elf32_little_generic_vec,&bfd_elf32_big_generic_vec -D SELECT_ARCHITECTURES=&bfd_i386_arch -D HAVE_bfd_elf64_x86_64_vec -D HAVE_bfd_elf32_i386_vec -D HAVE_i386coff_vec -D HAVE_bfd_efi_app_ia32_vec -D HAVE_bfd_efi_app_x86_64_vec -D HAVE_bfd_elf64_little_generic_vec -D HAVE_bfd_elf64_big_generic_vec -D HAVE_bfd_elf32_little_generic_vec -D HAVE_bfd_elf32_big_generic_vec -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/bfd -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/gnu/usr.bin/binutils/bfd/archures.c
1/* BFD library support routines for architectures.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003
4 Free Software Foundation, Inc.
5 Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libbfd.h"
26#include "safe-ctype.h"
27
28/*
29
30SECTION
31 Architectures
32
33 BFD keeps one atom in a BFD describing the
34 architecture of the data attached to the BFD: a pointer to a
35 <<bfd_arch_info_type>>.
36
37 Pointers to structures can be requested independently of a BFD
38 so that an architecture's information can be interrogated
39 without access to an open BFD.
40
41 The architecture information is provided by each architecture package.
42 The set of default architectures is selected by the macro
43 <<SELECT_ARCHITECTURES>>. This is normally set up in the
44 @file{config/@var{target}.mt} file of your choice. If the name is not
45 defined, then all the architectures supported are included.
46
47 When BFD starts up, all the architectures are called with an
48 initialize method. It is up to the architecture back end to
49 insert as many items into the list of architectures as it wants to;
50 generally this would be one for each machine and one for the
51 default case (an item with a machine field of 0).
52
53 BFD's idea of an architecture is implemented in @file{archures.c}.
54*/
55
56/*
57
58SUBSECTION
59 bfd_architecture
60
61DESCRIPTION
62 This enum gives the object file's CPU architecture, in a
63 global sense---i.e., what processor family does it belong to?
64 Another field indicates which processor within
65 the family is in use. The machine gives a number which
66 distinguishes different versions of the architecture,
67 containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
68 and 68020 and 68030 for Motorola 68020 and 68030.
69
70.enum bfd_architecture
71.{
72. bfd_arch_unknown, {* File arch not known. *}
73. bfd_arch_obscure, {* Arch known, not one of these. *}
74. bfd_arch_m68k, {* Motorola 68xxx *}
75.#define bfd_mach_m68000 1
76.#define bfd_mach_m68008 2
77.#define bfd_mach_m68010 3
78.#define bfd_mach_m68020 4
79.#define bfd_mach_m68030 5
80.#define bfd_mach_m68040 6
81.#define bfd_mach_m68060 7
82.#define bfd_mach_cpu32 8
83.#define bfd_mach_mcf5200 9
84.#define bfd_mach_mcf5206e 10
85.#define bfd_mach_mcf5307 11
86.#define bfd_mach_mcf5407 12
87.#define bfd_mach_mcf528x 13
88. bfd_arch_vax, {* DEC Vax *}
89. bfd_arch_i960, {* Intel 960 *}
90. {* The order of the following is important.
91. lower number indicates a machine type that
92. only accepts a subset of the instructions
93. available to machines with higher numbers.
94. The exception is the "ca", which is
95. incompatible with all other machines except
96. "core". *}
97.
98.#define bfd_mach_i960_core 1
99.#define bfd_mach_i960_ka_sa 2
100.#define bfd_mach_i960_kb_sb 3
101.#define bfd_mach_i960_mc 4
102.#define bfd_mach_i960_xa 5
103.#define bfd_mach_i960_ca 6
104.#define bfd_mach_i960_jx 7
105.#define bfd_mach_i960_hx 8
106.
107. bfd_arch_or32, {* OpenRISC 32 *}
108.
109. bfd_arch_a29k, {* AMD 29000 *}
110. bfd_arch_sparc, {* SPARC *}
111.#define bfd_mach_sparc 1
112.{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
113.#define bfd_mach_sparc_sparclet 2
114.#define bfd_mach_sparc_sparclite 3
115.#define bfd_mach_sparc_v8plus 4
116.#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns. *}
117.#define bfd_mach_sparc_sparclite_le 6
118.#define bfd_mach_sparc_v9 7
119.#define bfd_mach_sparc_v9a 8 {* with ultrasparc add'ns. *}
120.#define bfd_mach_sparc_v8plusb 9 {* with cheetah add'ns. *}
121.#define bfd_mach_sparc_v9b 10 {* with cheetah add'ns. *}
122.{* Nonzero if MACH has the v9 instruction set. *}
123.#define bfd_mach_sparc_v9_p(mach) \
124. ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
125. && (mach) != bfd_mach_sparc_sparclite_le)
126. bfd_arch_mips, {* MIPS Rxxxx *}
127.#define bfd_mach_mips3000 3000
128.#define bfd_mach_mips3900 3900
129.#define bfd_mach_mips4000 4000
130.#define bfd_mach_mips4010 4010
131.#define bfd_mach_mips4100 4100
132.#define bfd_mach_mips4111 4111
133.#define bfd_mach_mips4120 4120
134.#define bfd_mach_mips4300 4300
135.#define bfd_mach_mips4400 4400
136.#define bfd_mach_mips4600 4600
137.#define bfd_mach_mips4650 4650
138.#define bfd_mach_mips5000 5000
139.#define bfd_mach_mips5400 5400
140.#define bfd_mach_mips5500 5500
141.#define bfd_mach_mips6000 6000
142.#define bfd_mach_mips7000 7000
143.#define bfd_mach_mips8000 8000
144.#define bfd_mach_mips10000 10000
145.#define bfd_mach_mips12000 12000
146.#define bfd_mach_mips16 16
147.#define bfd_mach_mips5 5
148.#define bfd_mach_mips_sb1 12310201 {* octal 'SB', 01 *}
149.#define bfd_mach_mipsisa32 32
150.#define bfd_mach_mipsisa32r2 33
151.#define bfd_mach_mipsisa64 64
152.#define bfd_mach_mipsisa64r2 65
153. bfd_arch_i386, {* Intel 386 *}
154.#define bfd_mach_i386_i386 1
155.#define bfd_mach_i386_i8086 2
156.#define bfd_mach_i386_i386_intel_syntax 3
157.#define bfd_mach_x86_64 64
158.#define bfd_mach_x86_64_intel_syntax 65
159. bfd_arch_we32k, {* AT&T WE32xxx *}
160. bfd_arch_tahoe, {* CCI/Harris Tahoe *}
161. bfd_arch_i860, {* Intel 860 *}
162. bfd_arch_i370, {* IBM 360/370 Mainframes *}
163. bfd_arch_romp, {* IBM ROMP PC/RT *}
164. bfd_arch_alliant, {* Alliant *}
165. bfd_arch_convex, {* Convex *}
166. bfd_arch_m88k, {* Motorola 88xxx *}
167. bfd_arch_m98k, {* Motorola 98xxx *}
168. bfd_arch_pyramid, {* Pyramid Technology *}
169. bfd_arch_h8300, {* Renesas H8/300 (formerly Hitachi H8/300) *}
170.#define bfd_mach_h8300 1
171.#define bfd_mach_h8300h 2
172.#define bfd_mach_h8300s 3
173.#define bfd_mach_h8300hn 4
174.#define bfd_mach_h8300sn 5
175.#define bfd_mach_h8300sx 6
176.#define bfd_mach_h8300sxn 7
177. bfd_arch_pdp11, {* DEC PDP-11 *}
178. bfd_arch_powerpc, {* PowerPC *}
179.#define bfd_mach_ppc 32
180.#define bfd_mach_ppc64 64
181.#define bfd_mach_ppc_403 403
182.#define bfd_mach_ppc_403gc 4030
183.#define bfd_mach_ppc_505 505
184.#define bfd_mach_ppc_601 601
185.#define bfd_mach_ppc_602 602
186.#define bfd_mach_ppc_603 603
187.#define bfd_mach_ppc_ec603e 6031
188.#define bfd_mach_ppc_604 604
189.#define bfd_mach_ppc_620 620
190.#define bfd_mach_ppc_630 630
191.#define bfd_mach_ppc_750 750
192.#define bfd_mach_ppc_860 860
193.#define bfd_mach_ppc_a35 35
194.#define bfd_mach_ppc_rs64ii 642
195.#define bfd_mach_ppc_rs64iii 643
196.#define bfd_mach_ppc_7400 7400
197.#define bfd_mach_ppc_e500 500
198. bfd_arch_rs6000, {* IBM RS/6000 *}
199.#define bfd_mach_rs6k 6000
200.#define bfd_mach_rs6k_rs1 6001
201.#define bfd_mach_rs6k_rsc 6003
202.#define bfd_mach_rs6k_rs2 6002
203. bfd_arch_hppa, {* HP PA RISC *}
204.#define bfd_mach_hppa10 10
205.#define bfd_mach_hppa11 11
206.#define bfd_mach_hppa20 20
207.#define bfd_mach_hppa20w 25
208. bfd_arch_d10v, {* Mitsubishi D10V *}
209.#define bfd_mach_d10v 1
210.#define bfd_mach_d10v_ts2 2
211.#define bfd_mach_d10v_ts3 3
212. bfd_arch_d30v, {* Mitsubishi D30V *}
213. bfd_arch_dlx, {* DLX *}
214. bfd_arch_m68hc11, {* Motorola 68HC11 *}
215. bfd_arch_m68hc12, {* Motorola 68HC12 *}
216.#define bfd_mach_m6812_default 0
217.#define bfd_mach_m6812 1
218.#define bfd_mach_m6812s 2
219. bfd_arch_z8k, {* Zilog Z8000 *}
220.#define bfd_mach_z8001 1
221.#define bfd_mach_z8002 2
222. bfd_arch_h8500, {* Renesas H8/500 (formerly Hitachi H8/500) *}
223. bfd_arch_sh, {* Renesas / SuperH SH (formerly Hitachi SH) *}
224.#define bfd_mach_sh 1
225.#define bfd_mach_sh2 0x20
226.#define bfd_mach_sh_dsp 0x2d
227.#define bfd_mach_sh2e 0x2e
228.#define bfd_mach_sh3 0x30
229.#define bfd_mach_sh3_dsp 0x3d
230.#define bfd_mach_sh3e 0x3e
231.#define bfd_mach_sh4 0x40
232.#define bfd_mach_sh4_nofpu 0x41
233.#define bfd_mach_sh4a 0x4a
234.#define bfd_mach_sh4a_nofpu 0x4b
235.#define bfd_mach_sh4al_dsp 0x4d
236.#define bfd_mach_sh5 0x50
237. bfd_arch_alpha, {* Dec Alpha *}
238.#define bfd_mach_alpha_ev4 0x10
239.#define bfd_mach_alpha_ev5 0x20
240.#define bfd_mach_alpha_ev6 0x30
241. bfd_arch_arm, {* Advanced Risc Machines ARM. *}
242.#define bfd_mach_arm_unknown 0
243.#define bfd_mach_arm_2 1
244.#define bfd_mach_arm_2a 2
245.#define bfd_mach_arm_3 3
246.#define bfd_mach_arm_3M 4
247.#define bfd_mach_arm_4 5
248.#define bfd_mach_arm_4T 6
249.#define bfd_mach_arm_5 7
250.#define bfd_mach_arm_5T 8
251.#define bfd_mach_arm_5TE 9
252.#define bfd_mach_arm_XScale 10
253.#define bfd_mach_arm_ep9312 11
254.#define bfd_mach_arm_iWMMXt 12
255. bfd_arch_ns32k, {* National Semiconductors ns32000 *}
256. bfd_arch_w65, {* WDC 65816 *}
257. bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
258. bfd_arch_tic4x, {* Texas Instruments TMS320C3X/4X *}
259.#define bfd_mach_tic3x 30
260.#define bfd_mach_tic4x 40
261. bfd_arch_tic54x, {* Texas Instruments TMS320C54X *}
262. bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
263. bfd_arch_v850, {* NEC V850 *}
264.#define bfd_mach_v850 1
265.#define bfd_mach_v850e 'E'
266.#define bfd_mach_v850e1 '1'
267. bfd_arch_arc, {* ARC Cores *}
268.#define bfd_mach_arc_5 5
269.#define bfd_mach_arc_6 6
270.#define bfd_mach_arc_7 7
271.#define bfd_mach_arc_8 8
272. bfd_arch_m32r, {* Renesas M32R (formerly Mitsubishi M32R/D) *}
273.#define bfd_mach_m32r 1 {* For backwards compatibility. *}
274.#define bfd_mach_m32rx 'x'
275.#define bfd_mach_m32r2 '2'
276. bfd_arch_mn10200, {* Matsushita MN10200 *}
277. bfd_arch_mn10300, {* Matsushita MN10300 *}
278.#define bfd_mach_mn10300 300
279.#define bfd_mach_am33 330
280.#define bfd_mach_am33_2 332
281. bfd_arch_fr30,
282.#define bfd_mach_fr30 0x46523330
283. bfd_arch_frv,
284.#define bfd_mach_frv 1
285.#define bfd_mach_frvsimple 2
286.#define bfd_mach_fr300 300
287.#define bfd_mach_fr400 400
288.#define bfd_mach_frvtomcat 499 {* fr500 prototype *}
289.#define bfd_mach_fr500 500
290.#define bfd_mach_fr550 550
291. bfd_arch_mcore,
292. bfd_arch_ia64, {* HP/Intel ia64 *}
293.#define bfd_mach_ia64_elf64 64
294.#define bfd_mach_ia64_elf32 32
295. bfd_arch_ip2k, {* Ubicom IP2K microcontrollers. *}
296.#define bfd_mach_ip2022 1
297.#define bfd_mach_ip2022ext 2
298. bfd_arch_iq2000, {* Vitesse IQ2000. *}
299.#define bfd_mach_iq2000 1
300.#define bfd_mach_iq10 2
301. bfd_arch_pj,
302. bfd_arch_avr, {* Atmel AVR microcontrollers. *}
303.#define bfd_mach_avr1 1
304.#define bfd_mach_avr2 2
305.#define bfd_mach_avr3 3
306.#define bfd_mach_avr4 4
307.#define bfd_mach_avr5 5
308. bfd_arch_cris, {* Axis CRIS *}
309. bfd_arch_s390, {* IBM s390 *}
310.#define bfd_mach_s390_31 31
311.#define bfd_mach_s390_64 64
312. bfd_arch_openrisc, {* OpenRISC *}
313. bfd_arch_mmix, {* Donald Knuth's educational processor. *}
314. bfd_arch_xstormy16,
315.#define bfd_mach_xstormy16 1
316. bfd_arch_msp430, {* Texas Instruments MSP430 architecture. *}
317.#define bfd_mach_msp11 11
318.#define bfd_mach_msp110 110
319.#define bfd_mach_msp12 12
320.#define bfd_mach_msp13 13
321.#define bfd_mach_msp14 14
322.#define bfd_mach_msp15 15
323.#define bfd_mach_msp16 16
324.#define bfd_mach_msp31 31
325.#define bfd_mach_msp32 32
326.#define bfd_mach_msp33 33
327.#define bfd_mach_msp41 41
328.#define bfd_mach_msp42 42
329.#define bfd_mach_msp43 43
330.#define bfd_mach_msp44 44
331. bfd_arch_xtensa, {* Tensilica's Xtensa cores. *}
332.#define bfd_mach_xtensa 1
333. bfd_arch_last
334. };
335*/
336
337/*
338SUBSECTION
339 bfd_arch_info
340
341DESCRIPTION
342 This structure contains information on architectures for use
343 within BFD.
344
345.
346.typedef struct bfd_arch_info
347.{
348. int bits_per_word;
349. int bits_per_address;
350. int bits_per_byte;
351. enum bfd_architecture arch;
352. unsigned long mach;
353. const char *arch_name;
354. const char *printable_name;
355. unsigned int section_align_power;
356. {* TRUE if this is the default machine for the architecture.
357. The default arch should be the first entry for an arch so that
358. all the entries for that arch can be accessed via <<next>>. *}
359. bfd_boolean the_default;
360. const struct bfd_arch_info * (*compatible)
361. (const struct bfd_arch_info *a, const struct bfd_arch_info *b);
362.
363. bfd_boolean (*scan) (const struct bfd_arch_info *, const char *);
364.
365. const struct bfd_arch_info *next;
366.}
367.bfd_arch_info_type;
368.
369*/
370
371extern const bfd_arch_info_type bfd_a29k_arch;
372extern const bfd_arch_info_type bfd_alpha_arch;
373extern const bfd_arch_info_type bfd_arc_arch;
374extern const bfd_arch_info_type bfd_arm_arch;
375extern const bfd_arch_info_type bfd_avr_arch;
376extern const bfd_arch_info_type bfd_cris_arch;
377extern const bfd_arch_info_type bfd_d10v_arch;
378extern const bfd_arch_info_type bfd_d30v_arch;
379extern const bfd_arch_info_type bfd_dlx_arch;
380extern const bfd_arch_info_type bfd_fr30_arch;
381extern const bfd_arch_info_type bfd_frv_arch;
382extern const bfd_arch_info_type bfd_h8300_arch;
383extern const bfd_arch_info_type bfd_h8500_arch;
384extern const bfd_arch_info_type bfd_hppa_arch;
385extern const bfd_arch_info_type bfd_i370_arch;
386extern const bfd_arch_info_type bfd_i386_arch;
387extern const bfd_arch_info_type bfd_i860_arch;
388extern const bfd_arch_info_type bfd_i960_arch;
389extern const bfd_arch_info_type bfd_ia64_arch;
390extern const bfd_arch_info_type bfd_ip2k_arch;
391extern const bfd_arch_info_type bfd_iq2000_arch;
392extern const bfd_arch_info_type bfd_m32r_arch;
393extern const bfd_arch_info_type bfd_m68hc11_arch;
394extern const bfd_arch_info_type bfd_m68hc12_arch;
395extern const bfd_arch_info_type bfd_m68k_arch;
396extern const bfd_arch_info_type bfd_m88k_arch;
397extern const bfd_arch_info_type bfd_mcore_arch;
398extern const bfd_arch_info_type bfd_mips_arch;
399extern const bfd_arch_info_type bfd_mmix_arch;
400extern const bfd_arch_info_type bfd_mn10200_arch;
401extern const bfd_arch_info_type bfd_mn10300_arch;
402extern const bfd_arch_info_type bfd_msp430_arch;
403extern const bfd_arch_info_type bfd_ns32k_arch;
404extern const bfd_arch_info_type bfd_openrisc_arch;
405extern const bfd_arch_info_type bfd_or32_arch;
406extern const bfd_arch_info_type bfd_pdp11_arch;
407extern const bfd_arch_info_type bfd_pj_arch;
408extern const bfd_arch_info_type bfd_powerpc_archs[];
409#define bfd_powerpc_archbfd_powerpc_archs[0] bfd_powerpc_archs[0]
410extern const bfd_arch_info_type bfd_rs6000_arch;
411extern const bfd_arch_info_type bfd_s390_arch;
412extern const bfd_arch_info_type bfd_sh_arch;
413extern const bfd_arch_info_type bfd_sparc_arch;
414extern const bfd_arch_info_type bfd_tic30_arch;
415extern const bfd_arch_info_type bfd_tic4x_arch;
416extern const bfd_arch_info_type bfd_tic54x_arch;
417extern const bfd_arch_info_type bfd_tic80_arch;
418extern const bfd_arch_info_type bfd_v850_arch;
419extern const bfd_arch_info_type bfd_vax_arch;
420extern const bfd_arch_info_type bfd_we32k_arch;
421extern const bfd_arch_info_type bfd_w65_arch;
422extern const bfd_arch_info_type bfd_xstormy16_arch;
423extern const bfd_arch_info_type bfd_xtensa_arch;
424extern const bfd_arch_info_type bfd_z8k_arch;
425
426static const bfd_arch_info_type * const bfd_archures_list[] =
427 {
428#ifdef SELECT_ARCHITECTURES&bfd_i386_arch
429 SELECT_ARCHITECTURES&bfd_i386_arch,
430#else
431 &bfd_a29k_arch,
432 &bfd_alpha_arch,
433 &bfd_arc_arch,
434 &bfd_arm_arch,
435 &bfd_avr_arch,
436 &bfd_cris_arch,
437 &bfd_d10v_arch,
438 &bfd_d30v_arch,
439 &bfd_dlx_arch,
440 &bfd_fr30_arch,
441 &bfd_frv_arch,
442 &bfd_h8300_arch,
443 &bfd_h8500_arch,
444 &bfd_hppa_arch,
445 &bfd_i370_arch,
446 &bfd_i386_arch,
447 &bfd_i860_arch,
448 &bfd_i960_arch,
449 &bfd_ia64_arch,
450 &bfd_ip2k_arch,
451 &bfd_iq2000_arch,
452 &bfd_m32r_arch,
453 &bfd_m68hc11_arch,
454 &bfd_m68hc12_arch,
455 &bfd_m68k_arch,
456 &bfd_m88k_arch,
457 &bfd_mcore_arch,
458 &bfd_mips_arch,
459 &bfd_mmix_arch,
460 &bfd_mn10200_arch,
461 &bfd_mn10300_arch,
462 &bfd_msp430_arch,
463 &bfd_ns32k_arch,
464 &bfd_openrisc_arch,
465 &bfd_or32_arch,
466 &bfd_pdp11_arch,
467 &bfd_powerpc_archbfd_powerpc_archs[0],
468 &bfd_rs6000_arch,
469 &bfd_s390_arch,
470 &bfd_sh_arch,
471 &bfd_sparc_arch,
472 &bfd_tic30_arch,
473 &bfd_tic4x_arch,
474 &bfd_tic54x_arch,
475 &bfd_tic80_arch,
476 &bfd_v850_arch,
477 &bfd_vax_arch,
478 &bfd_w65_arch,
479 &bfd_we32k_arch,
480 &bfd_xstormy16_arch,
481 &bfd_xtensa_arch,
482 &bfd_z8k_arch,
483#endif
484 0
485};
486
487/*
488FUNCTION
489 bfd_printable_name
490
491SYNOPSIS
492 const char *bfd_printable_name (bfd *abfd);
493
494DESCRIPTION
495 Return a printable string representing the architecture and machine
496 from the pointer to the architecture info structure.
497
498*/
499
500const char *
501bfd_printable_name (bfd *abfd)
502{
503 return abfd->arch_info->printable_name;
504}
505
506/*
507FUNCTION
508 bfd_scan_arch
509
510SYNOPSIS
511 const bfd_arch_info_type *bfd_scan_arch (const char *string);
512
513DESCRIPTION
514 Figure out if BFD supports any cpu which could be described with
515 the name @var{string}. Return a pointer to an <<arch_info>>
516 structure if a machine is found, otherwise NULL.
517*/
518
519const bfd_arch_info_type *
520bfd_scan_arch (const char *string)
521{
522 const bfd_arch_info_type * const *app, *ap;
523
524 /* Look through all the installed architectures. */
525 for (app = bfd_archures_list; *app != NULL((void*)0); app++)
526 {
527 for (ap = *app; ap != NULL((void*)0); ap = ap->next)
528 {
529 if (ap->scan (ap, string))
530 return ap;
531 }
532 }
533
534 return NULL((void*)0);
535}
536
537/*
538FUNCTION
539 bfd_arch_list
540
541SYNOPSIS
542 const char **bfd_arch_list (void);
543
544DESCRIPTION
545 Return a freshly malloced NULL-terminated vector of the names
546 of all the valid BFD architectures. Do not modify the names.
547*/
548
549const char **
550bfd_arch_list (void)
551{
552 int vec_length = 0;
553 const char **name_ptr;
554 const char **name_list;
555 const bfd_arch_info_type * const *app;
556 bfd_size_type amt;
557
558 /* Determine the number of architectures. */
559 vec_length = 0;
560 for (app = bfd_archures_list; *app != NULL((void*)0); app++)
561 {
562 const bfd_arch_info_type *ap;
563 for (ap = *app; ap != NULL((void*)0); ap = ap->next)
564 {
565 vec_length++;
566 }
567 }
568
569 amt = (vec_length + 1) * sizeof (char **);
570 name_list = bfd_malloc (amt);
571 if (name_list == NULL((void*)0))
572 return NULL((void*)0);
573
574 /* Point the list at each of the names. */
575 name_ptr = name_list;
576 for (app = bfd_archures_list; *app != NULL((void*)0); app++)
577 {
578 const bfd_arch_info_type *ap;
579 for (ap = *app; ap != NULL((void*)0); ap = ap->next)
580 {
581 *name_ptr = ap->printable_name;
582 name_ptr++;
583 }
584 }
585 *name_ptr = NULL((void*)0);
586
587 return name_list;
588}
589
590/*
591FUNCTION
592 bfd_arch_get_compatible
593
594SYNOPSIS
595 const bfd_arch_info_type *bfd_arch_get_compatible
596 (const bfd *abfd, const bfd *bbfd, bfd_boolean accept_unknowns);
597
598DESCRIPTION
599 Determine whether two BFDs' architectures and machine types
600 are compatible. Calculates the lowest common denominator
601 between the two architectures and machine types implied by
602 the BFDs and returns a pointer to an <<arch_info>> structure
603 describing the compatible machine.
604*/
605
606const bfd_arch_info_type *
607bfd_arch_get_compatible (const bfd *abfd,
608 const bfd *bbfd,
609 bfd_boolean accept_unknowns)
610{
611 const bfd * ubfd = NULL((void*)0);
612
613 /* Look for an unknown architecture. */
614 if (((ubfd = abfd) && ubfd->arch_info->arch == bfd_arch_unknown)
1
Assuming 'ubfd' is null
→
2
←
Assuming pointer value is null
→
615 || ((ubfd = bbfd) && ubfd->arch_info->arch == bfd_arch_unknown))
3
←
Assuming 'ubfd' is null
→
616 {
617 /* We can allow an unknown architecture if accept_unknowns
618 is true, or if the target is the "binary" format, which
619 has an unknown architecture. Since the binary format can
620 only be set by explicit request from the user, it is safe
621 to assume that they know what they are doing. */
622 if (accept_unknowns
623 || strcmp (bfd_get_target (ubfd)((ubfd)->xvec->name), "binary") == 0)
624 return ubfd->arch_info;
625 return NULL((void*)0);
626 }
627
628 /* Otherwise architecture-specific code has to decide. */
629 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
4
←
Access to field 'arch_info' results in a dereference of a null pointer (loaded from variable 'abfd')
630}
631
632/*
633INTERNAL_DEFINITION
634 bfd_default_arch_struct
635
636DESCRIPTION
637 The <<bfd_default_arch_struct>> is an item of
638 <<bfd_arch_info_type>> which has been initialized to a fairly
639 generic state. A BFD starts life by pointing to this
640 structure, until the correct back end has determined the real
641 architecture of the file.
642
643.extern const bfd_arch_info_type bfd_default_arch_struct;
644*/
645
646const bfd_arch_info_type bfd_default_arch_struct = {
647 32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, TRUE1,
648 bfd_default_compatible,
649 bfd_default_scan,
650 0,
651};
652
653/*
654FUNCTION
655 bfd_set_arch_info
656
657SYNOPSIS
658 void bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg);
659
660DESCRIPTION
661 Set the architecture info of @var{abfd} to @var{arg}.
662*/
663
664void
665bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg)
666{
667 abfd->arch_info = arg;
668}
669
670/*
671INTERNAL_FUNCTION
672 bfd_default_set_arch_mach
673
674SYNOPSIS
675 bfd_boolean bfd_default_set_arch_mach
676 (bfd *abfd, enum bfd_architecture arch, unsigned long mach);
677
678DESCRIPTION
679 Set the architecture and machine type in BFD @var{abfd}
680 to @var{arch} and @var{mach}. Find the correct
681 pointer to a structure and insert it into the <<arch_info>>
682 pointer.
683*/
684
685bfd_boolean
686bfd_default_set_arch_mach (bfd *abfd,
687 enum bfd_architecture arch,
688 unsigned long mach)
689{
690 abfd->arch_info = bfd_lookup_arch (arch, mach);
691 if (abfd->arch_info != NULL((void*)0))
692 return TRUE1;
693
694 abfd->arch_info = &bfd_default_arch_struct;
695 bfd_set_error (bfd_error_bad_value);
696 return FALSE0;
697}
698
699/*
700FUNCTION
701 bfd_get_arch
702
703SYNOPSIS
704 enum bfd_architecture bfd_get_arch (bfd *abfd);
705
706DESCRIPTION
707 Return the enumerated type which describes the BFD @var{abfd}'s
708 architecture.
709*/
710
711enum bfd_architecture
712bfd_get_arch (bfd *abfd)
713{
714 return abfd->arch_info->arch;
715}
716
717/*
718FUNCTION
719 bfd_get_mach
720
721SYNOPSIS
722 unsigned long bfd_get_mach (bfd *abfd);
723
724DESCRIPTION
725 Return the long type which describes the BFD @var{abfd}'s
726 machine.
727*/
728
729unsigned long
730bfd_get_mach (bfd *abfd)
731{
732 return abfd->arch_info->mach;
733}
734
735/*
736FUNCTION
737 bfd_arch_bits_per_byte
738
739SYNOPSIS
740 unsigned int bfd_arch_bits_per_byte (bfd *abfd);
741
742DESCRIPTION
743 Return the number of bits in one of the BFD @var{abfd}'s
744 architecture's bytes.
745*/
746
747unsigned int
748bfd_arch_bits_per_byte (bfd *abfd)
749{
750 return abfd->arch_info->bits_per_byte;
751}
752
753/*
754FUNCTION
755 bfd_arch_bits_per_address
756
757SYNOPSIS
758 unsigned int bfd_arch_bits_per_address (bfd *abfd);
759
760DESCRIPTION
761 Return the number of bits in one of the BFD @var{abfd}'s
762 architecture's addresses.
763*/
764
765unsigned int
766bfd_arch_bits_per_address (bfd *abfd)
767{
768 return abfd->arch_info->bits_per_address;
769}
770
771/*
772INTERNAL_FUNCTION
773 bfd_default_compatible
774
775SYNOPSIS
776 const bfd_arch_info_type *bfd_default_compatible
777 (const bfd_arch_info_type *a, const bfd_arch_info_type *b);
778
779DESCRIPTION
780 The default function for testing for compatibility.
781*/
782
783const bfd_arch_info_type *
784bfd_default_compatible (const bfd_arch_info_type *a,
785 const bfd_arch_info_type *b)
786{
787 if (a->arch != b->arch)
788 return NULL((void*)0);
789
790 if (a->bits_per_word != b->bits_per_word)
791 return NULL((void*)0);
792
793 if (a->mach > b->mach)
794 return a;
795
796 if (b->mach > a->mach)
797 return b;
798
799 return a;
800}
801
802/*
803INTERNAL_FUNCTION
804 bfd_default_scan
805
806SYNOPSIS
807 bfd_boolean bfd_default_scan
808 (const struct bfd_arch_info *info, const char *string);
809
810DESCRIPTION
811 The default function for working out whether this is an
812 architecture hit and a machine hit.
813*/
814
815bfd_boolean
816bfd_default_scan (const bfd_arch_info_type *info, const char *string)
817{
818 const char *ptr_src;
819 const char *ptr_tst;
820 unsigned long number;
821 enum bfd_architecture arch;
822 const char *printable_name_colon;
823
824 /* Exact match of the architecture name (ARCH_NAME) and also the
825 default architecture? */
826 if (strcasecmp (string, info->arch_name) == 0
827 && info->the_default)
828 return TRUE1;
829
830 /* Exact match of the machine name (PRINTABLE_NAME)? */
831 if (strcasecmp (string, info->printable_name) == 0)
832 return TRUE1;
833
834 /* Given that printable_name contains no colon, attempt to match:
835 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
836 printable_name_colon = strchr (info->printable_name, ':');
837 if (printable_name_colon == NULL((void*)0))
838 {
839 size_t strlen_arch_name = strlen (info->arch_name);
840 if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
841 {
842 if (string[strlen_arch_name] == ':')
843 {
844 if (strcasecmp (string + strlen_arch_name + 1,
845 info->printable_name) == 0)
846 return TRUE1;
847 }
848 else
849 {
850 if (strcasecmp (string + strlen_arch_name,
851 info->printable_name) == 0)
852 return TRUE1;
853 }
854 }
855 }
856
857 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
858 Attempt to match: <arch> <mach>? */
859 if (printable_name_colon != NULL((void*)0))
860 {
861 size_t colon_index = printable_name_colon - info->printable_name;
862 if (strncasecmp (string, info->printable_name, colon_index) == 0
863 && strcasecmp (string + colon_index,
864 info->printable_name + colon_index + 1) == 0)
865 return TRUE1;
866 }
867
868 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
869 attempt to match just <mach>, it could be ambiguous. This test
870 is left until later. */
871
872 /* NOTE: The below is retained for compatibility only. Please do
873 not add to this code. */
874
875 /* See how much of the supplied string matches with the
876 architecture, eg the string m68k:68020 would match the 68k entry
877 up to the :, then we get left with the machine number. */
878
879 for (ptr_src = string, ptr_tst = info->arch_name;
880 *ptr_src && *ptr_tst;
881 ptr_src++, ptr_tst++)
882 {
883 if (*ptr_src != *ptr_tst)
884 break;
885 }
886
887 /* Chewed up as much of the architecture as will match, skip any
888 colons. */
889 if (*ptr_src == ':')
890 ptr_src++;
891
892 if (*ptr_src == 0)
893 {
894 /* Nothing more, then only keep this one if it is the default
895 machine for this architecture. */
896 return info->the_default;
897 }
898
899 number = 0;
900 while (ISDIGIT (*ptr_src)(_sch_istable[(*ptr_src) & 0xff] & (unsigned short)(_sch_isdigit
)))
901 {
902 number = number * 10 + *ptr_src - '0';
903 ptr_src++;
904 }
905
906 /* NOTE: The below is retained for compatibility only.
907 PLEASE DO NOT ADD TO THIS CODE. */
908
909 switch (number)
910 {
911 /* FIXME: These are needed to parse IEEE objects. */
912 /* The following seven case's are here only for compatibility with
913 older binutils (at least IEEE objects from binutils 2.9.1 require
914 them). */
915 case bfd_mach_m680001:
916 case bfd_mach_m680103:
917 case bfd_mach_m680204:
918 case bfd_mach_m680305:
919 case bfd_mach_m680406:
920 case bfd_mach_m680607:
921 case bfd_mach_cpu328:
922 arch = bfd_arch_m68k;
923 break;
924 case 68000:
925 arch = bfd_arch_m68k;
926 number = bfd_mach_m680001;
927 break;
928 case 68010:
929 arch = bfd_arch_m68k;
930 number = bfd_mach_m680103;
931 break;
932 case 68020:
933 arch = bfd_arch_m68k;
934 number = bfd_mach_m680204;
935 break;
936 case 68030:
937 arch = bfd_arch_m68k;
938 number = bfd_mach_m680305;
939 break;
940 case 68040:
941 arch = bfd_arch_m68k;
942 number = bfd_mach_m680406;
943 break;
944 case 68060:
945 arch = bfd_arch_m68k;
946 number = bfd_mach_m680607;
947 break;
948 case 68332:
949 arch = bfd_arch_m68k;
950 number = bfd_mach_cpu328;
951 break;
952 case 5200:
953 arch = bfd_arch_m68k;
954 number = bfd_mach_mcf52009;
955 break;
956 case 5206:
957 arch = bfd_arch_m68k;
958 number = bfd_mach_mcf5206e10;
959 break;
960 case 5307:
961 arch = bfd_arch_m68k;
962 number = bfd_mach_mcf530711;
963 break;
964 case 5407:
965 arch = bfd_arch_m68k;
966 number = bfd_mach_mcf540712;
967 break;
968 case 5282:
969 arch = bfd_arch_m68k;
970 number = bfd_mach_mcf528x13;
971 break;
972
973 case 32000:
974 arch = bfd_arch_we32k;
975 break;
976
977 case 3000:
978 arch = bfd_arch_mips;
979 number = bfd_mach_mips30003000;
980 break;
981
982 case 4000:
983 arch = bfd_arch_mips;
984 number = bfd_mach_mips40004000;
985 break;
986
987 case 6000:
988 arch = bfd_arch_rs6000;
989 break;
990
991 case 7410:
992 arch = bfd_arch_sh;
993 number = bfd_mach_sh_dsp0x2d;
994 break;
995
996 case 7708:
997 arch = bfd_arch_sh;
998 number = bfd_mach_sh30x30;
999 break;
1000
1001 case 7729:
1002 arch = bfd_arch_sh;
1003 number = bfd_mach_sh3_dsp0x3d;
1004 break;
1005
1006 case 7750:
1007 arch = bfd_arch_sh;
1008 number = bfd_mach_sh40x40;
1009 break;
1010
1011 default:
1012 return FALSE0;
1013 }
1014
1015 if (arch != info->arch)
1016 return FALSE0;
1017
1018 if (number != info->mach)
1019 return FALSE0;
1020
1021 return TRUE1;
1022}
1023
1024/*
1025FUNCTION
1026 bfd_get_arch_info
1027
1028SYNOPSIS
1029 const bfd_arch_info_type *bfd_get_arch_info (bfd *abfd);
1030
1031DESCRIPTION
1032 Return the architecture info struct in @var{abfd}.
1033*/
1034
1035const bfd_arch_info_type *
1036bfd_get_arch_info (bfd *abfd)
1037{
1038 return abfd->arch_info;
1039}
1040
1041/*
1042FUNCTION
1043 bfd_lookup_arch
1044
1045SYNOPSIS
1046 const bfd_arch_info_type *bfd_lookup_arch
1047 (enum bfd_architecture arch, unsigned long machine);
1048
1049DESCRIPTION
1050 Look for the architecture info structure which matches the
1051 arguments @var{arch} and @var{machine}. A machine of 0 matches the
1052 machine/architecture structure which marks itself as the
1053 default.
1054*/
1055
1056const bfd_arch_info_type *
1057bfd_lookup_arch (enum bfd_architecture arch, unsigned long machine)
1058{
1059 const bfd_arch_info_type * const *app, *ap;
1060
1061 for (app = bfd_archures_list; *app != NULL((void*)0); app++)
1062 {
1063 for (ap = *app; ap != NULL((void*)0); ap = ap->next)
1064 {
1065 if (ap->arch == arch
1066 && (ap->mach == machine
1067 || (machine == 0 && ap->the_default)))
1068 return ap;
1069 }
1070 }
1071
1072 return NULL((void*)0);
1073}
1074
1075/*
1076FUNCTION
1077 bfd_printable_arch_mach
1078
1079SYNOPSIS
1080 const char *bfd_printable_arch_mach
1081 (enum bfd_architecture arch, unsigned long machine);
1082
1083DESCRIPTION
1084 Return a printable string representing the architecture and
1085 machine type.
1086
1087 This routine is depreciated.
1088*/
1089
1090const char *
1091bfd_printable_arch_mach (enum bfd_architecture arch, unsigned long machine)
1092{
1093 const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1094
1095 if (ap)
1096 return ap->printable_name;
1097 return "UNKNOWN!";
1098}
1099
1100/*
1101FUNCTION
1102 bfd_octets_per_byte
1103
1104SYNOPSIS
1105 unsigned int bfd_octets_per_byte (bfd *abfd);
1106
1107DESCRIPTION
1108 Return the number of octets (8-bit quantities) per target byte
1109 (minimum addressable unit). In most cases, this will be one, but some
1110 DSP targets have 16, 32, or even 48 bits per byte.
1111*/
1112
1113unsigned int
1114bfd_octets_per_byte (bfd *abfd)
1115{
1116 return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1117 bfd_get_mach (abfd));
1118}
1119
1120/*
1121FUNCTION
1122 bfd_arch_mach_octets_per_byte
1123
1124SYNOPSIS
1125 unsigned int bfd_arch_mach_octets_per_byte
1126 (enum bfd_architecture arch, unsigned long machine);
1127
1128DESCRIPTION
1129 See bfd_octets_per_byte.
1130
1131 This routine is provided for those cases where a bfd * is not
1132 available
1133*/
1134
1135unsigned int
1136bfd_arch_mach_octets_per_byte (enum bfd_architecture arch,
1137 unsigned long mach)
1138{
1139 const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1140
1141 if (ap)
1142 return ap->bits_per_byte / 8;
1143 return 1;
1144}