1 /* Target definitions for GNU/Linux on ARM, for GDB. 2 Copyright 1999, 2000 Free Software Foundation, Inc. 3 4 This file is part of GDB. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 #ifndef TM_ARMLINUX_H 22 #define TM_ARMLINUX_H 23 24 /* Include the common ARM target definitions. */ 25 #include "arm/tm-arm.h" 26 27 #include "config/tm-linux.h" 28 29 /* We've multi-arched this. */ 30 #undef IN_SOLIB_CALL_TRAMPOLINE 31 32 /* On ARM GNU/Linux, a call to a library routine does not have to go 33 through any trampoline code. */ 34 #define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) 0 35 36 /* We've multi-arched this. */ 37 #undef SKIP_TRAMPOLINE_CODE 38 39 /* When we call a function in a shared library, and the PLT sends us 40 into the dynamic linker to find the function's real address, we 41 need to skip over the dynamic linker call. This function decides 42 when to skip, and where to skip to. See the comments for 43 SKIP_SOLIB_RESOLVER at the top of infrun.c. */ 44 #if 0 45 #undef IN_SOLIB_DYNSYM_RESOLVE_CODE 46 extern CORE_ADDR arm_in_solib_dynsym_resolve_code (CORE_ADDR pc, char *name); 47 #define IN_SOLIB_DYNSYM_RESOLVE_CODE arm_in_solib_dynsym_resolve_code 48 /* ScottB: Current definition is 49 extern CORE_ADDR in_svr4_dynsym_resolve_code (CORE_ADDR pc, char *name); 50 #define IN_SOLIB_DYNSYM_RESOLVE_CODE in_svr4_dynsym_resolve_code */ 51 #endif 52 53 /* When the ARM Linux kernel invokes a signal handler, the return 54 address points at a special instruction which'll trap back into 55 the kernel. These definitions are used to identify this bit of 56 code as a signal trampoline in order to support backtracing 57 through calls to signal handlers. */ 58 59 int arm_linux_in_sigtramp (CORE_ADDR pc, char *name); 60 #define DEPRECATED_IN_SIGTRAMP(pc, name) arm_linux_in_sigtramp (pc, name) 61 62 /* Each OS has different mechanisms for accessing the various 63 registers stored in the sigcontext structure. These definitions 64 provide a mechanism by which the generic code in arm-tdep.c can 65 find the addresses at which various registers are saved at in the 66 sigcontext structure. If SIGCONTEXT_REGISTER_ADDRESS is not 67 defined, arm-tdep.c will define it to be 0. (See ia64-tdep.c and 68 ia64-linux-tdep.c to see what a similar mechanism looks like when 69 multi-arched.) */ 70 71 extern CORE_ADDR arm_linux_sigcontext_register_address (CORE_ADDR, CORE_ADDR, 72 int); 73 #define SIGCONTEXT_REGISTER_ADDRESS arm_linux_sigcontext_register_address 74 75 #endif /* TM_ARMLINUX_H */ 76