projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a2f4826 AK |
1 | /* Target-dependent code for Newlib ARC. |
| 2 | ||
| b811d2c2 | 3 | Copyright (C) 2016-2020 Free Software Foundation, Inc. |
| 4a2f4826 AK |
4 | Contributed by Synopsys Inc. |
| 5 | ||
| 6 | This file is part of GDB. | |
| 7 | ||
| 8 | This program is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 3 of the License, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | This program is distributed in the hope that it will be useful, | |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | GNU General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 20 | ||
| 21 | #include "defs.h" | |
| 22 | ||
| d55e5aa6 | 23 | #include "gdbarch.h" |
| 4de283e4 | 24 | #include "arc-tdep.h" |
| 4a2f4826 AK |
25 | #include "osabi.h" |
| 26 | ||
| 27 | /* Implement the 'init_osabi' method of struct gdb_osabi_handler. */ | |
| 28 | ||
| 29 | static void | |
| 30 | arc_newlib_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
| 31 | { | |
| 32 | if (arc_debug) | |
| 33 | debug_printf ("arc-newlib: Initialization.\n"); | |
| 34 | ||
| 35 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
| 36 | ||
| 37 | /* Offset of original PC in longjmp jump buffer (in registers). Value of PC | |
| 38 | offset can be found in newlib/libc/machine/arc/setjmp.S. */ | |
| 39 | tdep->jb_pc = 18; | |
| 40 | } | |
| 41 | ||
| 42 | /* Recognize ARC Newlib object files. */ | |
| 43 | ||
| 44 | static enum gdb_osabi | |
| 45 | arc_newlib_osabi_sniffer (bfd *abfd) | |
| 46 | { | |
| 47 | if (arc_debug) | |
| 48 | debug_printf ("arc-newlib: OS/ABI sniffer.\n"); | |
| 49 | ||
| 50 | /* crt0.S in libgloss for ARC defines .ivt section for interrupt handlers. | |
| 51 | If this section is not present then this is likely not a newlib - could be | |
| 52 | a Linux application or some non-newlib baremetal application. */ | |
| 53 | if (bfd_get_section_by_name (abfd, ".ivt") != NULL) | |
| 54 | return GDB_OSABI_NEWLIB; | |
| 55 | else | |
| 56 | return GDB_OSABI_UNKNOWN; | |
| 57 | } | |
| 58 | ||
| 4a2f4826 AK |
59 | void |
| 60 | _initialize_arc_newlib_tdep (void) | |
| 61 | { | |
| 62 | gdbarch_register_osabi_sniffer (bfd_arch_arc, bfd_target_elf_flavour, | |
| 63 | arc_newlib_osabi_sniffer); | |
| 64 | gdbarch_register_osabi (bfd_arch_arc, 0, GDB_OSABI_NEWLIB, | |
| 65 | arc_newlib_init_osabi); | |
| 66 | } |