846a440c9c
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): New defines. (i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): New prototypes. * config/i386/tm-fbsd.h, config/i386/tm-i386gnu.h, config/i386/tm-linux.h (STAB_REG_TO_REGNUM): Redefine to call i386_dwarf_reg_to_regnum. * i386-tdep.c (i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): New functions.
97 lines
3.7 KiB
C
97 lines
3.7 KiB
C
/* Definitions to target GDB to GNU/Linux on 386.
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Copyright 1992, 1993, 1995, 1996, 1998, 1999, 2000, 2001
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Free Software Foundation, 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TM_LINUX_H
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#define TM_LINUX_H
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#define I386_GNULINUX_TARGET
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#define HAVE_I387_REGS
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#ifdef HAVE_PTRACE_GETFPXREGS
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#define HAVE_SSE_REGS
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#endif
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#include "i386/tm-i386.h"
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#include "tm-linux.h"
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/* Linux/ELF uses stabs-in-ELF with the DWARF register numbering
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scheme by default, so we must redefine STAB_REG_TO_REGNUM. This
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messes up the floating-point registers for a.out, but there is not
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much we can do about that. */
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#undef STAB_REG_TO_REGNUM
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#define STAB_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
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/* Use target_specific function to define link map offsets. */
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extern struct link_map_offsets *i386_linux_svr4_fetch_link_map_offsets (void);
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#define SVR4_FETCH_LINK_MAP_OFFSETS() i386_linux_svr4_fetch_link_map_offsets ()
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/* The following works around a problem with /usr/include/sys/procfs.h */
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#define sys_quotactl 1
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/* When the i386 Linux kernel calls a signal handler, the return
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address points to a bit of code on the stack. These definitions
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are used to identify this bit of code as a signal trampoline in
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order to support backtracing through calls to signal handlers. */
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#define IN_SIGTRAMP(pc, name) i386_linux_in_sigtramp (pc, name)
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extern int i386_linux_in_sigtramp (CORE_ADDR, char *);
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#undef FRAME_CHAIN
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#define FRAME_CHAIN(frame) i386_linux_frame_chain (frame)
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extern CORE_ADDR i386_linux_frame_chain (struct frame_info *frame);
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#undef FRAME_SAVED_PC
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#define FRAME_SAVED_PC(frame) i386_linux_frame_saved_pc (frame)
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extern CORE_ADDR i386_linux_frame_saved_pc (struct frame_info *frame);
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#undef SAVED_PC_AFTER_CALL
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#define SAVED_PC_AFTER_CALL(frame) i386_linux_saved_pc_after_call (frame)
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extern CORE_ADDR i386_linux_saved_pc_after_call (struct frame_info *);
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/* When we call a function in a shared library, and the PLT sends us
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into the dynamic linker to find the function's real address, we
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need to skip over the dynamic linker call. This function decides
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when to skip, and where to skip to. See the comments for
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SKIP_SOLIB_RESOLVER at the top of infrun.c. */
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#define SKIP_SOLIB_RESOLVER i386_linux_skip_solib_resolver
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extern CORE_ADDR i386_linux_skip_solib_resolver (CORE_ADDR pc);
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/* N_FUN symbols in shared libaries have 0 for their values and need
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to be relocated. */
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#define SOFUN_ADDRESS_MAYBE_MISSING
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/* Support for longjmp. */
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/* Details about jmp_buf. It's supposed to be an array of integers. */
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#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */
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#define JB_PC 5 /* Array index of saved PC. */
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/* Figure out where the longjmp will land. Slurp the args out of the
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stack. We expect the first arg to be a pointer to the jmp_buf
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structure from which we extract the pc (JB_PC) that we will land
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at. The pc is copied into ADDR. This routine returns true on
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success. */
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#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
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extern int get_longjmp_target (CORE_ADDR *addr);
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#endif /* #ifndef TM_LINUX_H */
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