/* BFD support for the ARM processor
- Copyright 1994, 95, 97, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1994-2020 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
-
-static const bfd_arch_info_type *compatible
- PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
-static boolean scan PARAMS ((const struct bfd_arch_info *, const char *));
+#include "libiberty.h"
+#include "cpu-arm.h"
/* This routine is provided two arch_infos and works out which ARM
machine which would be compatible with both and returns a pointer
- to its info structure */
+ to its info structure. */
static const bfd_arch_info_type *
-compatible (a,b)
- const bfd_arch_info_type * a;
- const bfd_arch_info_type * b;
+compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b)
{
- /* If a & b are for different architecture we can do nothing */
+ /* If a & b are for different architecture we can do nothing. */
if (a->arch != b->arch)
return NULL;
- /* If a & b are for the same machine then all is well */
+ /* If a & b are for the same machine then all is well. */
if (a->mach == b->mach)
return a;
- /* Otherwise if either a or b is the 'default' machine then
- it can be polymorphed into the other */
+ /* Otherwise if either a or b is the 'default' machine
+ then it can be polymorphed into the other. */
if (a->the_default)
return b;
-
+
if (b->the_default)
return a;
- /* So far all newer ARM architecture cores are supersets of previous cores */
+ /* So far all newer ARM architecture cores are
+ supersets of previous cores. */
if (a->mach < b->mach)
return b;
else if (a->mach > b->mach)
return a;
- /* Never reached! */
+ /* Never reached! */
return NULL;
}
static struct
{
- enum bfd_architecture arch;
- char * name;
+ unsigned int mach;
+ char * name;
}
processors[] =
{
- { bfd_mach_arm_2, "arm2" },
- { bfd_mach_arm_2a, "arm250" },
- { bfd_mach_arm_2a, "arm3" },
- { bfd_mach_arm_3, "arm6" },
- { bfd_mach_arm_3, "arm60" },
- { bfd_mach_arm_3, "arm600" },
- { bfd_mach_arm_3, "arm610" },
- { bfd_mach_arm_3, "arm7" },
- { bfd_mach_arm_3, "arm710" },
- { bfd_mach_arm_3, "arm7500" },
- { bfd_mach_arm_3, "arm7d" },
- { bfd_mach_arm_3, "arm7di" },
- { bfd_mach_arm_3M, "arm7dm" },
- { bfd_mach_arm_3M, "arm7dmi" },
- { bfd_mach_arm_4T, "arm7tdmi" },
- { bfd_mach_arm_4, "arm8" },
- { bfd_mach_arm_4, "arm810" },
- { bfd_mach_arm_4, "arm9" },
- { bfd_mach_arm_4, "arm920" },
- { bfd_mach_arm_4T, "arm920t" },
- { bfd_mach_arm_4T, "arm9tdmi" },
- { bfd_mach_arm_4, "sa1" },
- { bfd_mach_arm_4, "strongarm"},
- { bfd_mach_arm_4, "strongarm110" },
- { bfd_mach_arm_4, "strongarm1100" },
+ { bfd_mach_arm_2, "arm2" },
+ { bfd_mach_arm_2a, "arm250" },
+ { bfd_mach_arm_2a, "arm3" },
+ { bfd_mach_arm_3, "arm6" },
+ { bfd_mach_arm_3, "arm60" },
+ { bfd_mach_arm_3, "arm600" },
+ { bfd_mach_arm_3, "arm610" },
+ { bfd_mach_arm_3, "arm620" },
+ { bfd_mach_arm_3, "arm7" },
+ { bfd_mach_arm_3, "arm70" },
+ { bfd_mach_arm_3, "arm700" },
+ { bfd_mach_arm_3, "arm700i" },
+ { bfd_mach_arm_3, "arm710" },
+ { bfd_mach_arm_3, "arm7100" },
+ { bfd_mach_arm_3, "arm710c" },
+ { bfd_mach_arm_4T, "arm710t" },
+ { bfd_mach_arm_3, "arm720" },
+ { bfd_mach_arm_4T, "arm720t" },
+ { bfd_mach_arm_4T, "arm740t" },
+ { bfd_mach_arm_3, "arm7500" },
+ { bfd_mach_arm_3, "arm7500fe" },
+ { bfd_mach_arm_3, "arm7d" },
+ { bfd_mach_arm_3, "arm7di" },
+ { bfd_mach_arm_3M, "arm7dm" },
+ { bfd_mach_arm_3M, "arm7dmi" },
+ { bfd_mach_arm_4T, "arm7t" },
+ { bfd_mach_arm_4T, "arm7tdmi" },
+ { bfd_mach_arm_4T, "arm7tdmi-s" },
+ { bfd_mach_arm_3M, "arm7m" },
+ { bfd_mach_arm_4, "arm8" },
+ { bfd_mach_arm_4, "arm810" },
+ { bfd_mach_arm_4, "arm9" },
+ { bfd_mach_arm_4T, "arm920" },
+ { bfd_mach_arm_4T, "arm920t" },
+ { bfd_mach_arm_4T, "arm922t" },
+ { bfd_mach_arm_5TEJ, "arm926ej" },
+ { bfd_mach_arm_5TEJ, "arm926ejs" },
+ { bfd_mach_arm_5TEJ, "arm926ej-s" },
+ { bfd_mach_arm_4T, "arm940t" },
+ { bfd_mach_arm_5TE, "arm946e" },
+ { bfd_mach_arm_5TE, "arm946e-r0" },
+ { bfd_mach_arm_5TE, "arm946e-s" },
+ { bfd_mach_arm_5TE, "arm966e" },
+ { bfd_mach_arm_5TE, "arm966e-r0" },
+ { bfd_mach_arm_5TE, "arm966e-s" },
+ { bfd_mach_arm_5TE, "arm968e-s" },
+ { bfd_mach_arm_5TE, "arm9e" },
+ { bfd_mach_arm_5TE, "arm9e-r0" },
+ { bfd_mach_arm_4T, "arm9tdmi" },
+ { bfd_mach_arm_5TE, "arm1020" },
+ { bfd_mach_arm_5T, "arm1020t" },
+ { bfd_mach_arm_5TE, "arm1020e" },
+ { bfd_mach_arm_5TE, "arm1022e" },
+ { bfd_mach_arm_5TEJ, "arm1026ejs" },
+ { bfd_mach_arm_5TEJ, "arm1026ej-s" },
+ { bfd_mach_arm_5TE, "arm10e" },
+ { bfd_mach_arm_5T, "arm10t" },
+ { bfd_mach_arm_5T, "arm10tdmi" },
+ { bfd_mach_arm_6, "arm1136j-s" },
+ { bfd_mach_arm_6, "arm1136js" },
+ { bfd_mach_arm_6, "arm1136jf-s" },
+ { bfd_mach_arm_6, "arm1136jfs" },
+ { bfd_mach_arm_6KZ, "arm1176jz-s" },
+ { bfd_mach_arm_6KZ, "arm1176jzf-s" },
+ { bfd_mach_arm_6T2, "arm1156t2-s" },
+ { bfd_mach_arm_6T2, "arm1156t2f-s" },
+ { bfd_mach_arm_7, "cortex-a5" },
+ { bfd_mach_arm_7, "cortex-a7" },
+ { bfd_mach_arm_7, "cortex-a8" },
+ { bfd_mach_arm_7, "cortex-a9" },
+ { bfd_mach_arm_7, "cortex-a12" },
+ { bfd_mach_arm_7, "cortex-a15" },
+ { bfd_mach_arm_7, "cortex-a17" },
+ { bfd_mach_arm_8, "cortex-a32" },
+ { bfd_mach_arm_8, "cortex-a35" },
+ { bfd_mach_arm_8, "cortex-a53" },
+ { bfd_mach_arm_8, "cortex-a55" },
+ { bfd_mach_arm_8, "cortex-a57" },
+ { bfd_mach_arm_8, "cortex-a72" },
+ { bfd_mach_arm_8, "cortex-a73" },
+ { bfd_mach_arm_8, "cortex-a75" },
+ { bfd_mach_arm_8, "cortex-a76" },
+ { bfd_mach_arm_8, "cortex-a76ae" },
+ { bfd_mach_arm_8, "cortex-a77" },
+ { bfd_mach_arm_6SM, "cortex-m0" },
+ { bfd_mach_arm_6SM, "cortex-m0plus" },
+ { bfd_mach_arm_6SM, "cortex-m1" },
+ { bfd_mach_arm_8M_BASE, "cortex-m23" },
+ { bfd_mach_arm_7, "cortex-m3" },
+ { bfd_mach_arm_8M_MAIN, "cortex-m33" },
+ { bfd_mach_arm_8M_MAIN, "cortex-m35p" },
+ { bfd_mach_arm_7EM, "cortex-m4" },
+ { bfd_mach_arm_7EM, "cortex-m7" },
+ { bfd_mach_arm_7, "cortex-r4" },
+ { bfd_mach_arm_7, "cortex-r4f" },
+ { bfd_mach_arm_7, "cortex-r5" },
+ { bfd_mach_arm_8R, "cortex-r52" },
+ { bfd_mach_arm_7, "cortex-r7" },
+ { bfd_mach_arm_7, "cortex-r8" },
+ { bfd_mach_arm_4T, "ep9312" },
+ { bfd_mach_arm_8, "exynos-m1" },
+ { bfd_mach_arm_4, "fa526" },
+ { bfd_mach_arm_5TE, "fa606te" },
+ { bfd_mach_arm_5TE, "fa616te" },
+ { bfd_mach_arm_4, "fa626" },
+ { bfd_mach_arm_5TE, "fa626te" },
+ { bfd_mach_arm_5TE, "fa726te" },
+ { bfd_mach_arm_5TE, "fmp626" },
+ { bfd_mach_arm_XScale, "i80200" },
+ { bfd_mach_arm_7, "marvell-pj4" },
+ { bfd_mach_arm_7, "marvell-whitney" },
+ { bfd_mach_arm_6K, "mpcore" },
+ { bfd_mach_arm_6K, "mpcorenovfp" },
+ { bfd_mach_arm_4, "sa1" },
+ { bfd_mach_arm_4, "strongarm" },
+ { bfd_mach_arm_4, "strongarm1" },
+ { bfd_mach_arm_4, "strongarm110" },
+ { bfd_mach_arm_4, "strongarm1100" },
+ { bfd_mach_arm_4, "strongarm1110" },
+ { bfd_mach_arm_XScale, "xscale" },
+ { bfd_mach_arm_8, "xgene1" },
+ { bfd_mach_arm_8, "xgene2" },
+ { bfd_mach_arm_ep9312, "ep9312" },
+ { bfd_mach_arm_iWMMXt, "iwmmxt" },
+ { bfd_mach_arm_iWMMXt2, "iwmmxt2" },
+ { bfd_mach_arm_unknown, "arm_any" }
};
-static boolean
-scan (info, string)
- const struct bfd_arch_info * info;
- const char * string;
+static bfd_boolean
+scan (const struct bfd_arch_info *info, const char *string)
{
int i;
- /* First test for an exact match */
+ /* First test for an exact match. */
if (strcasecmp (string, info->printable_name) == 0)
- return true;
+ return TRUE;
- /* Next check for a processor name instead of an Architecture name */
+ /* Next check for a processor name instead of an Architecture name. */
for (i = sizeof (processors) / sizeof (processors[0]); i--;)
{
- if (strcasecmp (string, processors[ i ].name) == 0)
+ if (strcasecmp (string, processors [i].name) == 0)
break;
}
- if (i != -1 && info->arch == processors[ i ].arch)
- return true;
+ if (i != -1 && info->mach == processors [i].mach)
+ return TRUE;
- /* Finally check for the default architecture */
+ /* Finally check for the default architecture. */
if (strcasecmp (string, "arm") == 0)
return info->the_default;
-
- return false;
-}
+ return FALSE;
+}
#define N(number, print, default, next) \
-{ 32, 32, 8, bfd_arch_arm, number, "arm", print, 4, default, compatible, scan, next }
+{ 32, 32, 8, bfd_arch_arm, number, "arm", print, 4, default, compatible, \
+ scan, bfd_arch_default_fill, next, 0 }
static const bfd_arch_info_type arch_info_struct[] =
-{
- N( bfd_mach_arm_2, "armv2", false, & arch_info_struct[1] ),
- N( bfd_mach_arm_2a, "armv2a", false, & arch_info_struct[2] ),
- N( bfd_mach_arm_3, "armv3", false, & arch_info_struct[3] ),
- N( bfd_mach_arm_3M, "armv3m", false, & arch_info_struct[4] ),
- N( bfd_mach_arm_4, "armv4", false, & arch_info_struct[5] ),
- N( bfd_mach_arm_4T, "armv4t", false, & arch_info_struct[6] ),
- N( bfd_mach_arm_5, "armv5", false, & arch_info_struct[7] ),
- N( bfd_mach_arm_5T, "armv5t", false, NULL )
+{
+ N (bfd_mach_arm_2, "armv2", FALSE, & arch_info_struct[1]),
+ N (bfd_mach_arm_2a, "armv2a", FALSE, & arch_info_struct[2]),
+ N (bfd_mach_arm_3, "armv3", FALSE, & arch_info_struct[3]),
+ N (bfd_mach_arm_3M, "armv3m", FALSE, & arch_info_struct[4]),
+ N (bfd_mach_arm_4, "armv4", FALSE, & arch_info_struct[5]),
+ N (bfd_mach_arm_4T, "armv4t", FALSE, & arch_info_struct[6]),
+ N (bfd_mach_arm_5, "armv5", FALSE, & arch_info_struct[7]),
+ N (bfd_mach_arm_5T, "armv5t", FALSE, & arch_info_struct[8]),
+ N (bfd_mach_arm_5TE, "armv5te", FALSE, & arch_info_struct[9]),
+ N (bfd_mach_arm_XScale, "xscale", FALSE, & arch_info_struct[10]),
+ N (bfd_mach_arm_ep9312, "ep9312", FALSE, & arch_info_struct[11]),
+ N (bfd_mach_arm_iWMMXt, "iwmmxt", FALSE, & arch_info_struct[12]),
+ N (bfd_mach_arm_iWMMXt2, "iwmmxt2", FALSE, & arch_info_struct[13]),
+ N (bfd_mach_arm_5TEJ, "armv5tej", FALSE, & arch_info_struct[14]),
+ N (bfd_mach_arm_6, "armv6", FALSE, & arch_info_struct[15]),
+ N (bfd_mach_arm_6KZ, "armv6kz", FALSE, & arch_info_struct[16]),
+ N (bfd_mach_arm_6T2, "armv6t2", FALSE, & arch_info_struct[17]),
+ N (bfd_mach_arm_6K, "armv6k", FALSE, & arch_info_struct[18]),
+ N (bfd_mach_arm_7, "armv7", FALSE, & arch_info_struct[19]),
+ N (bfd_mach_arm_6M, "armv6-m", FALSE, & arch_info_struct[20]),
+ N (bfd_mach_arm_6SM, "armv6s-m", FALSE, & arch_info_struct[21]),
+ N (bfd_mach_arm_7EM, "armv7e-m", FALSE, & arch_info_struct[22]),
+ N (bfd_mach_arm_8, "armv8-a", FALSE, & arch_info_struct[23]),
+ N (bfd_mach_arm_8R, "armv8-r", FALSE, & arch_info_struct[24]),
+ N (bfd_mach_arm_8M_BASE, "armv8-m.base", FALSE, & arch_info_struct[25]),
+ N (bfd_mach_arm_8M_MAIN, "armv8-m.main", FALSE, & arch_info_struct[26]),
+ N (bfd_mach_arm_8_1M_MAIN, "armv8.1-m.main", FALSE, & arch_info_struct[27]),
+ N (bfd_mach_arm_unknown, "arm_any", FALSE, NULL)
};
const bfd_arch_info_type bfd_arm_arch =
- N( 0, "arm", true, & arch_info_struct[0] );
+ N (0, "arm", TRUE, & arch_info_struct[0]);
+
+/* Support functions used by both the COFF and ELF versions of the ARM port. */
+
+/* Handle the merging of the 'machine' settings of input file IBFD
+ and an output file OBFD. These values actually represent the
+ different possible ARM architecture variants.
+ Returns TRUE if they were merged successfully or FALSE otherwise. */
+
+bfd_boolean
+bfd_arm_merge_machines (bfd *ibfd, bfd *obfd)
+{
+ unsigned int in = bfd_get_mach (ibfd);
+ unsigned int out = bfd_get_mach (obfd);
+
+ /* If the output architecture is unknown, we now have a value to set. */
+ if (out == bfd_mach_arm_unknown)
+ bfd_set_arch_mach (obfd, bfd_arch_arm, in);
+
+ /* If the input architecture is unknown,
+ then so must be the output architecture. */
+ else if (in == bfd_mach_arm_unknown)
+ /* FIXME: We ought to have some way to
+ override this on the command line. */
+ bfd_set_arch_mach (obfd, bfd_arch_arm, bfd_mach_arm_unknown);
+
+ /* If they are the same then nothing needs to be done. */
+ else if (out == in)
+ ;
+
+ /* Otherwise the general principle that a earlier architecture can be
+ linked with a later architecture to produce a binary that will execute
+ on the later architecture.
+
+ We fail however if we attempt to link a Cirrus EP9312 binary with an
+ Intel XScale binary, since these architecture have co-processors which
+ will not both be present on the same physical hardware. */
+ else if (in == bfd_mach_arm_ep9312
+ && (out == bfd_mach_arm_XScale
+ || out == bfd_mach_arm_iWMMXt
+ || out == bfd_mach_arm_iWMMXt2))
+ {
+ /* xgettext: c-format */
+ _bfd_error_handler (_("error: %pB is compiled for the EP9312, "
+ "whereas %pB is compiled for XScale"),
+ ibfd, obfd);
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+ else if (out == bfd_mach_arm_ep9312
+ && (in == bfd_mach_arm_XScale
+ || in == bfd_mach_arm_iWMMXt
+ || in == bfd_mach_arm_iWMMXt2))
+ {
+ /* xgettext: c-format */
+ _bfd_error_handler (_("error: %pB is compiled for the EP9312, "
+ "whereas %pB is compiled for XScale"),
+ obfd, ibfd);
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+ else if (in > out)
+ bfd_set_arch_mach (obfd, bfd_arch_arm, in);
+ /* else
+ Nothing to do. */
+
+ return TRUE;
+}
+
+typedef struct
+{
+ unsigned char namesz[4]; /* Size of entry's owner string. */
+ unsigned char descsz[4]; /* Size of the note descriptor. */
+ unsigned char type[4]; /* Interpretation of the descriptor. */
+ char name[1]; /* Start of the name+desc data. */
+} arm_Note;
+
+static bfd_boolean
+arm_check_note (bfd *abfd,
+ bfd_byte *buffer,
+ bfd_size_type buffer_size,
+ const char *expected_name,
+ char **description_return)
+{
+ unsigned long namesz;
+ unsigned long descsz;
+ unsigned long type;
+ char * descr;
+
+ if (buffer_size < offsetof (arm_Note, name))
+ return FALSE;
+
+ /* We have to extract the values this way to allow for a
+ host whose endian-ness is different from the target. */
+ namesz = bfd_get_32 (abfd, buffer);
+ descsz = bfd_get_32 (abfd, buffer + offsetof (arm_Note, descsz));
+ type = bfd_get_32 (abfd, buffer + offsetof (arm_Note, type));
+ descr = (char *) buffer + offsetof (arm_Note, name);
+
+ /* Check for buffer overflow. */
+ if (namesz + descsz + offsetof (arm_Note, name) > buffer_size)
+ return FALSE;
+
+ if (expected_name == NULL)
+ {
+ if (namesz != 0)
+ return FALSE;
+ }
+ else
+ {
+ if (namesz != ((strlen (expected_name) + 1 + 3) & ~3))
+ return FALSE;
+
+ if (strcmp (descr, expected_name) != 0)
+ return FALSE;
+
+ descr += (namesz + 3) & ~3;
+ }
+
+ /* FIXME: We should probably check the type as well. */
+ (void) type;
+
+ if (description_return != NULL)
+ * description_return = descr;
+
+ return TRUE;
+}
+
+#define NOTE_ARCH_STRING "arch: "
+
+bfd_boolean
+bfd_arm_update_notes (bfd *abfd, const char *note_section)
+{
+ asection * arm_arch_section;
+ bfd_size_type buffer_size;
+ bfd_byte * buffer;
+ char * arch_string;
+ char * expected;
+
+ /* Look for a note section. If one is present check the architecture
+ string encoded in it, and set it to the current architecture if it is
+ different. */
+ arm_arch_section = bfd_get_section_by_name (abfd, note_section);
+
+ if (arm_arch_section == NULL)
+ return TRUE;
+
+ buffer_size = arm_arch_section->size;
+ if (buffer_size == 0)
+ return FALSE;
+
+ if (!bfd_malloc_and_get_section (abfd, arm_arch_section, &buffer))
+ goto FAIL;
+
+ /* Parse the note. */
+ if (! arm_check_note (abfd, buffer, buffer_size, NOTE_ARCH_STRING, & arch_string))
+ goto FAIL;
+
+ /* Check the architecture in the note against the architecture of the bfd.
+ Newer architectures versions should not be added here as build attribute
+ are a better mechanism to convey ISA used. */
+ switch (bfd_get_mach (abfd))
+ {
+ default:
+ case bfd_mach_arm_unknown: expected = "unknown"; break;
+ case bfd_mach_arm_2: expected = "armv2"; break;
+ case bfd_mach_arm_2a: expected = "armv2a"; break;
+ case bfd_mach_arm_3: expected = "armv3"; break;
+ case bfd_mach_arm_3M: expected = "armv3M"; break;
+ case bfd_mach_arm_4: expected = "armv4"; break;
+ case bfd_mach_arm_4T: expected = "armv4t"; break;
+ case bfd_mach_arm_5: expected = "armv5"; break;
+ case bfd_mach_arm_5T: expected = "armv5t"; break;
+ case bfd_mach_arm_5TE: expected = "armv5te"; break;
+ case bfd_mach_arm_XScale: expected = "XScale"; break;
+ case bfd_mach_arm_ep9312: expected = "ep9312"; break;
+ case bfd_mach_arm_iWMMXt: expected = "iWMMXt"; break;
+ case bfd_mach_arm_iWMMXt2: expected = "iWMMXt2"; break;
+ }
+
+ if (strcmp (arch_string, expected) != 0)
+ {
+ strcpy ((char *) buffer + (offsetof (arm_Note, name)
+ + ((strlen (NOTE_ARCH_STRING) + 3) & ~3)),
+ expected);
+
+ if (! bfd_set_section_contents (abfd, arm_arch_section, buffer,
+ (file_ptr) 0, buffer_size))
+ {
+ _bfd_error_handler
+ /* xgettext: c-format */
+ (_("warning: unable to update contents of %s section in %pB"),
+ note_section, abfd);
+ goto FAIL;
+ }
+ }
+
+ free (buffer);
+ return TRUE;
+
+ FAIL:
+ free (buffer);
+ return FALSE;
+}
+
+
+static struct
+{
+ const char * string;
+ unsigned int mach;
+}
+
+/* Newer architectures versions should not be added here as build attribute are
+ a better mechanism to convey ISA used. */
+architectures[] =
+{
+ { "armv2", bfd_mach_arm_2 },
+ { "armv2a", bfd_mach_arm_2a },
+ { "armv3", bfd_mach_arm_3 },
+ { "armv3M", bfd_mach_arm_3M },
+ { "armv4", bfd_mach_arm_4 },
+ { "armv4t", bfd_mach_arm_4T },
+ { "armv5", bfd_mach_arm_5 },
+ { "armv5t", bfd_mach_arm_5T },
+ { "armv5te", bfd_mach_arm_5TE },
+ { "XScale", bfd_mach_arm_XScale },
+ { "ep9312", bfd_mach_arm_ep9312 },
+ { "iWMMXt", bfd_mach_arm_iWMMXt },
+ { "iWMMXt2", bfd_mach_arm_iWMMXt2 },
+ { "arm_any", bfd_mach_arm_unknown }
+};
+
+/* Extract the machine number stored in a note section. */
+unsigned int
+bfd_arm_get_mach_from_notes (bfd *abfd, const char *note_section)
+{
+ asection * arm_arch_section;
+ bfd_size_type buffer_size;
+ bfd_byte * buffer;
+ char * arch_string;
+ int i;
+
+ /* Look for a note section. If one is present check the architecture
+ string encoded in it, and set it to the current architecture if it is
+ different. */
+ arm_arch_section = bfd_get_section_by_name (abfd, note_section);
+
+ if (arm_arch_section == NULL)
+ return bfd_mach_arm_unknown;
+
+ buffer_size = arm_arch_section->size;
+ if (buffer_size == 0)
+ return bfd_mach_arm_unknown;
+
+ if (!bfd_malloc_and_get_section (abfd, arm_arch_section, &buffer))
+ goto FAIL;
+
+ /* Parse the note. */
+ if (! arm_check_note (abfd, buffer, buffer_size, NOTE_ARCH_STRING, & arch_string))
+ goto FAIL;
+
+ /* Interpret the architecture string. */
+ for (i = ARRAY_SIZE (architectures); i--;)
+ if (strcmp (arch_string, architectures[i].string) == 0)
+ {
+ free (buffer);
+ return architectures[i].mach;
+ }
+
+ FAIL:
+ free (buffer);
+ return bfd_mach_arm_unknown;
+}
+
+bfd_boolean
+bfd_is_arm_special_symbol_name (const char * name, int type)
+{
+ /* The ARM compiler outputs several obsolete forms. Recognize them
+ in addition to the standard $a, $t and $d. We are somewhat loose
+ in what we accept here, since the full set is not documented. */
+ if (!name || name[0] != '$')
+ return FALSE;
+ if (name[1] == 'a' || name[1] == 't' || name[1] == 'd')
+ type &= BFD_ARM_SPECIAL_SYM_TYPE_MAP;
+ else if (name[1] == 'm' || name[1] == 'f' || name[1] == 'p')
+ type &= BFD_ARM_SPECIAL_SYM_TYPE_TAG;
+ else if (name[1] >= 'a' && name[1] <= 'z')
+ type &= BFD_ARM_SPECIAL_SYM_TYPE_OTHER;
+ else
+ return FALSE;
+
+ return (type != 0 && (name[2] == 0 || name[2] == '.'));
+}
+
projects / deliverable / binutils-gdb.git / blobdiff