mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
b05f243280
config/i386/nm-linux.h (including comment). (i386_linux_frame_chain): New function implementing guts of the former FRAME_CHAIN macro, but using read_memory_unsigned_integer instead of read_memory_integer. (i386_linux_frame_saved_pc): Removed doc pointing to i386/tm-linux.h for an explanation of FRAMELESS_SIGNAL since that now lives in this file. * config/i386/tm-linux.h (FRAMELESS_SIGNAL): Moved to i386-linux-tdep.c (including comment). (FRAME_CHAIN): Redefined in terms of i386_linux_frame_chain. (i386_linux_frame_chain): New prototype.
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/* Definitions to target GDB to GNU/Linux on 386.
|
||
Copyright 1992, 1993, 1995, 1996, 1998, 1999, 2000, 2001
|
||
Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
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 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. */
|
||
|
||
#ifndef TM_LINUX_H
|
||
#define TM_LINUX_H
|
||
|
||
#define I386_GNULINUX_TARGET
|
||
#define HAVE_I387_REGS
|
||
#ifdef HAVE_PTRACE_GETFPXREGS
|
||
#define HAVE_SSE_REGS
|
||
#endif
|
||
|
||
#include "i386/tm-i386.h"
|
||
#include "tm-linux.h"
|
||
|
||
/* Use target_specific function to define link map offsets. */
|
||
extern struct link_map_offsets *i386_linux_svr4_fetch_link_map_offsets (void);
|
||
#define SVR4_FETCH_LINK_MAP_OFFSETS() i386_linux_svr4_fetch_link_map_offsets ()
|
||
|
||
/* The following works around a problem with /usr/include/sys/procfs.h */
|
||
#define sys_quotactl 1
|
||
|
||
/* When the i386 Linux kernel calls a signal handler, the return
|
||
address points to a bit of code on the stack. These definitions
|
||
are used to identify this bit of code as a signal trampoline in
|
||
order to support backtracing through calls to signal handlers. */
|
||
|
||
#define IN_SIGTRAMP(pc, name) i386_linux_in_sigtramp (pc, name)
|
||
extern int i386_linux_in_sigtramp (CORE_ADDR, char *);
|
||
|
||
#undef FRAME_CHAIN
|
||
#define FRAME_CHAIN(frame) i386_linux_frame_chain (frame)
|
||
extern CORE_ADDR i386_linux_frame_chain (struct frame_info *frame);
|
||
|
||
#undef FRAME_SAVED_PC
|
||
#define FRAME_SAVED_PC(frame) i386_linux_frame_saved_pc (frame)
|
||
extern CORE_ADDR i386_linux_frame_saved_pc (struct frame_info *frame);
|
||
|
||
#undef SAVED_PC_AFTER_CALL
|
||
#define SAVED_PC_AFTER_CALL(frame) i386_linux_saved_pc_after_call (frame)
|
||
extern CORE_ADDR i386_linux_saved_pc_after_call (struct frame_info *);
|
||
|
||
/* When we call a function in a shared library, and the PLT sends us
|
||
into the dynamic linker to find the function's real address, we
|
||
need to skip over the dynamic linker call. This function decides
|
||
when to skip, and where to skip to. See the comments for
|
||
SKIP_SOLIB_RESOLVER at the top of infrun.c. */
|
||
#define SKIP_SOLIB_RESOLVER i386_linux_skip_solib_resolver
|
||
extern CORE_ADDR i386_linux_skip_solib_resolver (CORE_ADDR pc);
|
||
|
||
/* N_FUN symbols in shared libaries have 0 for their values and need
|
||
to be relocated. */
|
||
#define SOFUN_ADDRESS_MAYBE_MISSING
|
||
|
||
|
||
/* Support for longjmp. */
|
||
|
||
/* Details about jmp_buf. It's supposed to be an array of integers. */
|
||
|
||
#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */
|
||
#define JB_PC 5 /* Array index of saved PC. */
|
||
|
||
/* Figure out where the longjmp will land. Slurp the args out of the
|
||
stack. We expect the first arg to be a pointer to the jmp_buf
|
||
structure from which we extract the pc (JB_PC) that we will land
|
||
at. The pc is copied into ADDR. This routine returns true on
|
||
success. */
|
||
|
||
#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
|
||
extern int get_longjmp_target (CORE_ADDR *addr);
|
||
|
||
#endif /* #ifndef TM_LINUX_H */
|