118 lines
4.5 KiB
C
118 lines
4.5 KiB
C
/* Parameters for target execution on an RS6000, for GDB, the GNU debugger.
|
|
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
|
|
1998, 1999, 2000
|
|
Free Software Foundation, Inc.
|
|
Contributed by IBM Corporation.
|
|
|
|
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. */
|
|
|
|
#define GDB_MULTI_ARCH 1
|
|
|
|
/* Minimum possible text address in AIX */
|
|
|
|
#define TEXT_SEGMENT_BASE 0x10000000
|
|
|
|
/* AIX's assembler doesn't grok dollar signs in identifiers.
|
|
So we use dots instead. This item must be coordinated with G++. */
|
|
#undef CPLUS_MARKER
|
|
#define CPLUS_MARKER '.'
|
|
|
|
/* If PC is in some function-call trampoline code, return the PC
|
|
where the function itself actually starts. If not, return NULL. */
|
|
|
|
#define SKIP_TRAMPOLINE_CODE(pc) rs6000_skip_trampoline_code (pc)
|
|
extern CORE_ADDR rs6000_skip_trampoline_code (CORE_ADDR);
|
|
|
|
/* Number of trap signals we need to skip over, once the inferior process
|
|
starts running. */
|
|
|
|
#define START_INFERIOR_TRAPS_EXPECTED 2
|
|
|
|
/* AIX has a couple of strange returns from wait(). */
|
|
|
|
#define CHILD_SPECIAL_WAITSTATUS(ourstatus, hoststatus) ( \
|
|
/* "stop after load" status. */ \
|
|
(hoststatus) == 0x57c ? (ourstatus)->kind = TARGET_WAITKIND_LOADED, 1 : \
|
|
\
|
|
/* signal 0. I have no idea why wait(2) returns with this status word. */ \
|
|
/* It looks harmless. */ \
|
|
(hoststatus) == 0x7f ? (ourstatus)->kind = TARGET_WAITKIND_SPURIOUS, 1 : \
|
|
\
|
|
/* A normal waitstatus. Let the usual macros deal with it. */ \
|
|
0)
|
|
|
|
/* In xcoff, we cannot process line numbers when we see them. This is
|
|
mainly because we don't know the boundaries of the include files. So,
|
|
we postpone that, and then enter and sort(?) the whole line table at
|
|
once, when we are closing the current symbol table in end_symtab(). */
|
|
|
|
#define PROCESS_LINENUMBER_HOOK() aix_process_linenos ()
|
|
extern void aix_process_linenos (void);
|
|
|
|
/* Register numbers of various important registers.
|
|
Note that some of these values are "real" register numbers,
|
|
and correspond to the general registers of the machine,
|
|
and some are "phony" register numbers which are too large
|
|
to be actual register numbers as far as the user is concerned
|
|
but do serve to get the desired values when passed to read_register. */
|
|
|
|
#define FP0_REGNUM 32 /* Floating point register 0 */
|
|
#define FPLAST_REGNUM 63 /* Last floating point register */
|
|
|
|
/* These #defines are used to parse core files and talk to ptrace, so they
|
|
must remain fixed. */
|
|
#define FIRST_UISA_SP_REGNUM 64 /* first special register number */
|
|
#define LAST_UISA_SP_REGNUM 70 /* last special register number */
|
|
|
|
/* convert a dbx stab register number (from `r' declaration) to a gdb REGNUM */
|
|
|
|
#define STAB_REG_TO_REGNUM(value) (value)
|
|
|
|
/* Define other aspects of the stack frame. */
|
|
|
|
#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
|
|
prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
|
|
prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
|
|
#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
|
|
|
|
/* Default offset from SP where the LR is stored */
|
|
#define DEFAULT_LR_SAVE 8
|
|
|
|
/* Flag for machine-specific stuff in shared files. FIXME */
|
|
#define IBM6000_TARGET
|
|
|
|
/* RS6000/AIX does not support PT_STEP. Has to be simulated. */
|
|
|
|
#define SOFTWARE_SINGLE_STEP_P() 1
|
|
extern void rs6000_software_single_step (unsigned int, int);
|
|
#define SOFTWARE_SINGLE_STEP(sig,bp_p) rs6000_software_single_step (sig, bp_p)
|
|
|
|
/* Notice when a new child process is started. */
|
|
|
|
#define TARGET_CREATE_INFERIOR_HOOK rs6000_create_inferior
|
|
extern void rs6000_create_inferior (int);
|
|
|
|
/* Hook in rs6000-tdep.c for determining the TOC address when
|
|
calling functions in the inferior. */
|
|
|
|
extern CORE_ADDR (*rs6000_find_toc_address_hook) (CORE_ADDR);
|
|
|
|
/* Hook in rs6000-tdep.c to set the current architecture when starting a
|
|
child process. */
|
|
|
|
extern void (*rs6000_set_host_arch_hook) (int);
|