derek.holloway
7502bf64a4
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70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* Target-dependent code for Newlib ARC.
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Copyright (C) 2016-2024 Free Software Foundation, Inc.
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Contributed by Synopsys Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "gdbarch.h"
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#include "arc-tdep.h"
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#include "osabi.h"
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/* Print an "arc-newlib" debug statement. */
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#define arc_newlib_debug_printf(fmt, ...) \
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debug_prefixed_printf_cond (arc_debug, "arc-newlib", fmt, ##__VA_ARGS__)
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/* Implement the 'init_osabi' method of struct gdb_osabi_handler. */
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static void
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arc_newlib_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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arc_newlib_debug_printf ("Initialization.");
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arc_gdbarch_tdep *tdep = gdbarch_tdep<arc_gdbarch_tdep> (gdbarch);
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/* Offset of original PC in longjmp jump buffer (in registers). Value of PC
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offset can be found in newlib/libc/machine/arc/setjmp.S. */
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tdep->jb_pc = 18;
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}
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/* Recognize ARC Newlib object files. */
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static enum gdb_osabi
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arc_newlib_osabi_sniffer (bfd *abfd)
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{
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arc_newlib_debug_printf ("OS/ABI sniffer.");
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/* crt0.S in libgloss for ARC defines .ivt section for interrupt handlers.
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If this section is not present then this is likely not a newlib - could be
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a Linux application or some non-newlib baremetal application. */
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if (bfd_get_section_by_name (abfd, ".ivt") != NULL)
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return GDB_OSABI_NEWLIB;
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else
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return GDB_OSABI_UNKNOWN;
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}
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void _initialize_arc_newlib_tdep ();
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void
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_initialize_arc_newlib_tdep ()
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{
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gdbarch_register_osabi_sniffer (bfd_arch_arc, bfd_target_elf_flavour,
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arc_newlib_osabi_sniffer);
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gdbarch_register_osabi (bfd_arch_arc, 0, GDB_OSABI_NEWLIB,
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arc_newlib_init_osabi);
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}
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