diff options
Diffstat (limited to 'gdb/a29k-tdep.c')
| -rw-r--r-- | gdb/a29k-tdep.c | 1015 |
1 files changed, 0 insertions, 1015 deletions
diff --git a/gdb/a29k-tdep.c b/gdb/a29k-tdep.c deleted file mode 100644 index 4fcc0f219c8..00000000000 --- a/gdb/a29k-tdep.c +++ /dev/null @@ -1,1015 +0,0 @@ -/* OBSOLETE /* Target-machine dependent code for the AMD 29000 */ -/* OBSOLETE Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, */ -/* OBSOLETE 2001 */ -/* OBSOLETE Free Software Foundation, Inc. */ -/* OBSOLETE Contributed by Cygnus Support. Written by Jim Kingdon. */ -/* OBSOLETE */ -/* OBSOLETE This file is part of GDB. */ -/* OBSOLETE */ -/* OBSOLETE This program is free software; you can redistribute it and/or modify */ -/* OBSOLETE it under the terms of the GNU General Public License as published by */ -/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ -/* OBSOLETE (at your option) any later version. */ -/* OBSOLETE */ -/* OBSOLETE This program is distributed in the hope that it will be useful, */ -/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* OBSOLETE GNU General Public License for more details. */ -/* OBSOLETE */ -/* OBSOLETE You should have received a copy of the GNU General Public License */ -/* OBSOLETE along with this program; if not, write to the Free Software */ -/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */ -/* OBSOLETE Boston, MA 02111-1307, USA. */ */ -/* OBSOLETE */ -/* OBSOLETE #include "defs.h" */ -/* OBSOLETE #include "gdbcore.h" */ -/* OBSOLETE #include "frame.h" */ -/* OBSOLETE #include "value.h" */ -/* OBSOLETE #include "symtab.h" */ -/* OBSOLETE #include "inferior.h" */ -/* OBSOLETE #include "gdbcmd.h" */ -/* OBSOLETE #include "regcache.h" */ -/* OBSOLETE */ -/* OBSOLETE /* If all these bits in an instruction word are zero, it is a "tag word" */ -/* OBSOLETE which precedes a function entry point and gives stack traceback info. */ -/* OBSOLETE This used to be defined as 0xff000000, but that treated 0x00000deb as */ -/* OBSOLETE a tag word, while it is really used as a breakpoint. */ */ -/* OBSOLETE #define TAGWORD_ZERO_MASK 0xff00f800 */ -/* OBSOLETE */ -/* OBSOLETE extern CORE_ADDR text_start; /* FIXME, kludge... */ */ -/* OBSOLETE */ -/* OBSOLETE /* The user-settable top of the register stack in virtual memory. We */ -/* OBSOLETE won't attempt to access any stored registers above this address, if set */ -/* OBSOLETE nonzero. */ */ -/* OBSOLETE */ -/* OBSOLETE static CORE_ADDR rstack_high_address = UINT_MAX; */ -/* OBSOLETE */ -/* OBSOLETE */ -/* OBSOLETE /* Should call_function allocate stack space for a struct return? */ */ -/* OBSOLETE /* On the a29k objects over 16 words require the caller to allocate space. */ */ -/* OBSOLETE int */ -/* OBSOLETE a29k_use_struct_convention (int gcc_p, struct type *type) */ -/* OBSOLETE { */ -/* OBSOLETE return (TYPE_LENGTH (type) > 16 * 4); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE */ -/* OBSOLETE /* Structure to hold cached info about function prologues. */ */ -/* OBSOLETE */ -/* OBSOLETE struct prologue_info */ -/* OBSOLETE { */ -/* OBSOLETE CORE_ADDR pc; /* First addr after fn prologue */ */ -/* OBSOLETE unsigned rsize, msize; /* register stack frame size, mem stack ditto */ */ -/* OBSOLETE unsigned mfp_used:1; /* memory frame pointer used */ */ -/* OBSOLETE unsigned rsize_valid:1; /* Validity bits for the above */ */ -/* OBSOLETE unsigned msize_valid:1; */ -/* OBSOLETE unsigned mfp_valid:1; */ -/* OBSOLETE }; */ -/* OBSOLETE */ -/* OBSOLETE /* Examine the prologue of a function which starts at PC. Return */ -/* OBSOLETE the first addess past the prologue. If MSIZE is non-NULL, then */ -/* OBSOLETE set *MSIZE to the memory stack frame size. If RSIZE is non-NULL, */ -/* OBSOLETE then set *RSIZE to the register stack frame size (not including */ -/* OBSOLETE incoming arguments and the return address & frame pointer stored */ -/* OBSOLETE with them). If no prologue is found, *RSIZE is set to zero. */ -/* OBSOLETE If no prologue is found, or a prologue which doesn't involve */ -/* OBSOLETE allocating a memory stack frame, then set *MSIZE to zero. */ -/* OBSOLETE */ -/* OBSOLETE Note that both msize and rsize are in bytes. This is not consistent */ -/* OBSOLETE with the _User's Manual_ with respect to rsize, but it is much more */ -/* OBSOLETE convenient. */ -/* OBSOLETE */ -/* OBSOLETE If MFP_USED is non-NULL, *MFP_USED is set to nonzero if a memory */ -/* OBSOLETE frame pointer is being used. */ */ -/* OBSOLETE */ -/* OBSOLETE CORE_ADDR */ -/* OBSOLETE examine_prologue (CORE_ADDR pc, unsigned *rsize, unsigned *msize, int *mfp_used) */ -/* OBSOLETE { */ -/* OBSOLETE long insn; */ -/* OBSOLETE CORE_ADDR p = pc; */ -/* OBSOLETE struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); */ -/* OBSOLETE struct prologue_info *mi = 0; */ -/* OBSOLETE */ -/* OBSOLETE if (msymbol != NULL) */ -/* OBSOLETE mi = (struct prologue_info *) msymbol->info; */ -/* OBSOLETE */ -/* OBSOLETE if (mi != 0) */ -/* OBSOLETE { */ -/* OBSOLETE int valid = 1; */ -/* OBSOLETE if (rsize != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE *rsize = mi->rsize; */ -/* OBSOLETE valid &= mi->rsize_valid; */ -/* OBSOLETE } */ -/* OBSOLETE if (msize != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE *msize = mi->msize; */ -/* OBSOLETE valid &= mi->msize_valid; */ -/* OBSOLETE } */ -/* OBSOLETE if (mfp_used != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE *mfp_used = mi->mfp_used; */ -/* OBSOLETE valid &= mi->mfp_valid; */ -/* OBSOLETE } */ -/* OBSOLETE if (valid) */ -/* OBSOLETE return mi->pc; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE if (rsize != NULL) */ -/* OBSOLETE *rsize = 0; */ -/* OBSOLETE if (msize != NULL) */ -/* OBSOLETE *msize = 0; */ -/* OBSOLETE if (mfp_used != NULL) */ -/* OBSOLETE *mfp_used = 0; */ -/* OBSOLETE */ -/* OBSOLETE /* Prologue must start with subtracting a constant from gr1. */ -/* OBSOLETE Normally this is sub gr1,gr1,<rsize * 4>. */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xffffff00) != 0x25010100) */ -/* OBSOLETE { */ -/* OBSOLETE /* If the frame is large, instead of a single instruction it */ -/* OBSOLETE might be a pair of instructions: */ -/* OBSOLETE const <reg>, <rsize * 4> */ -/* OBSOLETE sub gr1,gr1,<reg> */ -/* OBSOLETE */ */ -/* OBSOLETE int reg; */ -/* OBSOLETE /* Possible value for rsize. */ */ -/* OBSOLETE unsigned int rsize0; */ -/* OBSOLETE */ -/* OBSOLETE if ((insn & 0xff000000) != 0x03000000) */ -/* OBSOLETE { */ -/* OBSOLETE p = pc; */ -/* OBSOLETE goto done; */ -/* OBSOLETE } */ -/* OBSOLETE reg = (insn >> 8) & 0xff; */ -/* OBSOLETE rsize0 = (((insn >> 8) & 0xff00) | (insn & 0xff)); */ -/* OBSOLETE p += 4; */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xffffff00) != 0x24010100 */ -/* OBSOLETE || (insn & 0xff) != reg) */ -/* OBSOLETE { */ -/* OBSOLETE p = pc; */ -/* OBSOLETE goto done; */ -/* OBSOLETE } */ -/* OBSOLETE if (rsize != NULL) */ -/* OBSOLETE *rsize = rsize0; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE if (rsize != NULL) */ -/* OBSOLETE *rsize = (insn & 0xff); */ -/* OBSOLETE } */ -/* OBSOLETE p += 4; */ -/* OBSOLETE */ -/* OBSOLETE /* Next instruction ought to be asgeu V_SPILL,gr1,rab. */ -/* OBSOLETE * We don't check the vector number to allow for kernel debugging. The */ -/* OBSOLETE * kernel will use a different trap number. */ -/* OBSOLETE * If this insn is missing, we just keep going; Metaware R2.3u compiler */ -/* OBSOLETE * generates prologue that intermixes initializations and puts the asgeu */ -/* OBSOLETE * way down. */ -/* OBSOLETE */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xff00ffff) == (0x5e000100 | RAB_HW_REGNUM)) */ -/* OBSOLETE { */ -/* OBSOLETE p += 4; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Next instruction usually sets the frame pointer (lr1) by adding */ -/* OBSOLETE <size * 4> from gr1. However, this can (and high C does) be */ -/* OBSOLETE deferred until anytime before the first function call. So it is */ -/* OBSOLETE OK if we don't see anything which sets lr1. */ -/* OBSOLETE To allow for alternate register sets (gcc -mkernel-registers) the msp */ -/* OBSOLETE register number is a compile time constant. */ */ -/* OBSOLETE */ -/* OBSOLETE /* Normally this is just add lr1,gr1,<size * 4>. */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xffffff00) == 0x15810100) */ -/* OBSOLETE p += 4; */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* However, for large frames it can be */ -/* OBSOLETE const <reg>, <size *4> */ -/* OBSOLETE add lr1,gr1,<reg> */ -/* OBSOLETE */ */ -/* OBSOLETE int reg; */ -/* OBSOLETE CORE_ADDR q; */ -/* OBSOLETE */ -/* OBSOLETE if ((insn & 0xff000000) == 0x03000000) */ -/* OBSOLETE { */ -/* OBSOLETE reg = (insn >> 8) & 0xff; */ -/* OBSOLETE q = p + 4; */ -/* OBSOLETE insn = read_memory_integer (q, 4); */ -/* OBSOLETE if ((insn & 0xffffff00) == 0x14810100 */ -/* OBSOLETE && (insn & 0xff) == reg) */ -/* OBSOLETE p = q; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Next comes "add lr{<rsize-1>},msp,0", but only if a memory */ -/* OBSOLETE frame pointer is in use. We just check for add lr<anything>,msp,0; */ -/* OBSOLETE we don't check this rsize against the first instruction, and */ -/* OBSOLETE we don't check that the trace-back tag indicates a memory frame pointer */ -/* OBSOLETE is in use. */ -/* OBSOLETE To allow for alternate register sets (gcc -mkernel-registers) the msp */ -/* OBSOLETE register number is a compile time constant. */ -/* OBSOLETE */ -/* OBSOLETE The recommended instruction is actually "sll lr<whatever>,msp,0". */ -/* OBSOLETE We check for that, too. Originally Jim Kingdon's code seemed */ -/* OBSOLETE to be looking for a "sub" instruction here, but the mask was set */ -/* OBSOLETE up to lose all the time. */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if (((insn & 0xff80ffff) == (0x15800000 | (MSP_HW_REGNUM << 8))) /* add */ */ -/* OBSOLETE || ((insn & 0xff80ffff) == (0x81800000 | (MSP_HW_REGNUM << 8)))) /* sll */ */ -/* OBSOLETE { */ -/* OBSOLETE p += 4; */ -/* OBSOLETE if (mfp_used != NULL) */ -/* OBSOLETE *mfp_used = 1; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Next comes a subtraction from msp to allocate a memory frame, */ -/* OBSOLETE but only if a memory frame is */ -/* OBSOLETE being used. We don't check msize against the trace-back tag. */ -/* OBSOLETE */ -/* OBSOLETE To allow for alternate register sets (gcc -mkernel-registers) the msp */ -/* OBSOLETE register number is a compile time constant. */ -/* OBSOLETE */ -/* OBSOLETE Normally this is just */ -/* OBSOLETE sub msp,msp,<msize> */ -/* OBSOLETE */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xffffff00) == */ -/* OBSOLETE (0x25000000 | (MSP_HW_REGNUM << 16) | (MSP_HW_REGNUM << 8))) */ -/* OBSOLETE { */ -/* OBSOLETE p += 4; */ -/* OBSOLETE if (msize != NULL) */ -/* OBSOLETE *msize = insn & 0xff; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* For large frames, instead of a single instruction it might */ -/* OBSOLETE be */ -/* OBSOLETE */ -/* OBSOLETE const <reg>, <msize> */ -/* OBSOLETE consth <reg>, <msize> ; optional */ -/* OBSOLETE sub msp,msp,<reg> */ -/* OBSOLETE */ */ -/* OBSOLETE int reg; */ -/* OBSOLETE unsigned msize0; */ -/* OBSOLETE CORE_ADDR q = p; */ -/* OBSOLETE */ -/* OBSOLETE if ((insn & 0xff000000) == 0x03000000) */ -/* OBSOLETE { */ -/* OBSOLETE reg = (insn >> 8) & 0xff; */ -/* OBSOLETE msize0 = ((insn >> 8) & 0xff00) | (insn & 0xff); */ -/* OBSOLETE q += 4; */ -/* OBSOLETE insn = read_memory_integer (q, 4); */ -/* OBSOLETE /* Check for consth. */ */ -/* OBSOLETE if ((insn & 0xff000000) == 0x02000000 */ -/* OBSOLETE && (insn & 0x0000ff00) == reg) */ -/* OBSOLETE { */ -/* OBSOLETE msize0 |= (insn << 8) & 0xff000000; */ -/* OBSOLETE msize0 |= (insn << 16) & 0x00ff0000; */ -/* OBSOLETE q += 4; */ -/* OBSOLETE insn = read_memory_integer (q, 4); */ -/* OBSOLETE } */ -/* OBSOLETE /* Check for sub msp,msp,<reg>. */ */ -/* OBSOLETE if ((insn & 0xffffff00) == */ -/* OBSOLETE (0x24000000 | (MSP_HW_REGNUM << 16) | (MSP_HW_REGNUM << 8)) */ -/* OBSOLETE && (insn & 0xff) == reg) */ -/* OBSOLETE { */ -/* OBSOLETE p = q + 4; */ -/* OBSOLETE if (msize != NULL) */ -/* OBSOLETE *msize = msize0; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Next instruction might be asgeu V_SPILL,gr1,rab. */ -/* OBSOLETE * We don't check the vector number to allow for kernel debugging. The */ -/* OBSOLETE * kernel will use a different trap number. */ -/* OBSOLETE * Metaware R2.3u compiler */ -/* OBSOLETE * generates prologue that intermixes initializations and puts the asgeu */ -/* OBSOLETE * way down after everything else. */ -/* OBSOLETE */ */ -/* OBSOLETE insn = read_memory_integer (p, 4); */ -/* OBSOLETE if ((insn & 0xff00ffff) == (0x5e000100 | RAB_HW_REGNUM)) */ -/* OBSOLETE { */ -/* OBSOLETE p += 4; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE done: */ -/* OBSOLETE if (msymbol != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE if (mi == 0) */ -/* OBSOLETE { */ -/* OBSOLETE /* Add a new cache entry. */ */ -/* OBSOLETE mi = (struct prologue_info *) xmalloc (sizeof (struct prologue_info)); */ -/* OBSOLETE msymbol->info = (char *) mi; */ -/* OBSOLETE mi->rsize_valid = 0; */ -/* OBSOLETE mi->msize_valid = 0; */ -/* OBSOLETE mi->mfp_valid = 0; */ -/* OBSOLETE } */ -/* OBSOLETE /* else, cache entry exists, but info is incomplete. */ */ -/* OBSOLETE mi->pc = p; */ -/* OBSOLETE if (rsize != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE mi->rsize = *rsize; */ -/* OBSOLETE mi->rsize_valid = 1; */ -/* OBSOLETE } */ -/* OBSOLETE if (msize != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE mi->msize = *msize; */ -/* OBSOLETE mi->msize_valid = 1; */ -/* OBSOLETE } */ -/* OBSOLETE if (mfp_used != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE mi->mfp_used = *mfp_used; */ -/* OBSOLETE mi->mfp_valid = 1; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE return p; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Advance PC across any function entry prologue instructions */ -/* OBSOLETE to reach some "real" code. */ */ -/* OBSOLETE */ -/* OBSOLETE CORE_ADDR */ -/* OBSOLETE a29k_skip_prologue (CORE_ADDR pc) */ -/* OBSOLETE { */ -/* OBSOLETE return examine_prologue (pc, NULL, NULL, NULL); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* */ -/* OBSOLETE * Examine the one or two word tag at the beginning of a function. */ -/* OBSOLETE * The tag word is expect to be at 'p', if it is not there, we fail */ -/* OBSOLETE * by returning 0. The documentation for the tag word was taken from */ -/* OBSOLETE * page 7-15 of the 29050 User's Manual. We are assuming that the */ -/* OBSOLETE * m bit is in bit 22 of the tag word, which seems to be the agreed upon */ -/* OBSOLETE * convention today (1/15/92). */ -/* OBSOLETE * msize is return in bytes. */ -/* OBSOLETE */ */ -/* OBSOLETE */ -/* OBSOLETE static int /* 0/1 - failure/success of finding the tag word */ */ -/* OBSOLETE examine_tag (CORE_ADDR p, int *is_trans, int *argcount, unsigned *msize, */ -/* OBSOLETE int *mfp_used) */ -/* OBSOLETE { */ -/* OBSOLETE unsigned int tag1, tag2; */ -/* OBSOLETE */ -/* OBSOLETE tag1 = read_memory_integer (p, 4); */ -/* OBSOLETE if ((tag1 & TAGWORD_ZERO_MASK) != 0) /* Not a tag word */ */ -/* OBSOLETE return 0; */ -/* OBSOLETE if (tag1 & (1 << 23)) /* A two word tag */ */ -/* OBSOLETE { */ -/* OBSOLETE tag2 = read_memory_integer (p - 4, 4); */ -/* OBSOLETE if (msize) */ -/* OBSOLETE *msize = tag2 * 2; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE /* A one word tag */ */ -/* OBSOLETE { */ -/* OBSOLETE if (msize) */ -/* OBSOLETE *msize = tag1 & 0x7ff; */ -/* OBSOLETE } */ -/* OBSOLETE if (is_trans) */ -/* OBSOLETE *is_trans = ((tag1 & (1 << 21)) ? 1 : 0); */ -/* OBSOLETE /* Note that this includes the frame pointer and the return address */ -/* OBSOLETE register, so the actual number of registers of arguments is two less. */ -/* OBSOLETE argcount can be zero, however, sometimes, for strange assembler */ -/* OBSOLETE routines. */ */ -/* OBSOLETE if (argcount) */ -/* OBSOLETE *argcount = (tag1 >> 16) & 0x1f; */ -/* OBSOLETE if (mfp_used) */ -/* OBSOLETE *mfp_used = ((tag1 & (1 << 22)) ? 1 : 0); */ -/* OBSOLETE return 1; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Initialize the frame. In addition to setting "extra" frame info, */ -/* OBSOLETE we also set ->frame because we use it in a nonstandard way, and ->pc */ -/* OBSOLETE because we need to know it to get the other stuff. See the diagram */ -/* OBSOLETE of stacks and the frame cache in tm-a29k.h for more detail. */ */ -/* OBSOLETE */ -/* OBSOLETE static void */ -/* OBSOLETE init_frame_info (int innermost_frame, struct frame_info *frame) */ -/* OBSOLETE { */ -/* OBSOLETE CORE_ADDR p; */ -/* OBSOLETE long insn; */ -/* OBSOLETE unsigned rsize; */ -/* OBSOLETE unsigned msize; */ -/* OBSOLETE int mfp_used, trans; */ -/* OBSOLETE struct symbol *func; */ -/* OBSOLETE */ -/* OBSOLETE p = frame->pc; */ -/* OBSOLETE */ -/* OBSOLETE if (innermost_frame) */ -/* OBSOLETE frame->frame = read_register (GR1_REGNUM); */ -/* OBSOLETE else */ -/* OBSOLETE frame->frame = frame->next->frame + frame->next->rsize; */ -/* OBSOLETE */ -/* OBSOLETE #if 0 /* CALL_DUMMY_LOCATION == ON_STACK */ */ -/* OBSOLETE This wont work; */ -/* OBSOLETE #else */ -/* OBSOLETE if (PC_IN_CALL_DUMMY (p, 0, 0)) */ -/* OBSOLETE #endif */ -/* OBSOLETE { */ -/* OBSOLETE frame->rsize = DUMMY_FRAME_RSIZE; */ -/* OBSOLETE /* This doesn't matter since we never try to get locals or args */ -/* OBSOLETE from a dummy frame. */ */ -/* OBSOLETE frame->msize = 0; */ -/* OBSOLETE /* Dummy frames always use a memory frame pointer. */ */ -/* OBSOLETE frame->saved_msp = */ -/* OBSOLETE read_register_stack_integer (frame->frame + DUMMY_FRAME_RSIZE - 4, 4); */ -/* OBSOLETE frame->flags |= (TRANSPARENT_FRAME | MFP_USED); */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE func = find_pc_function (p); */ -/* OBSOLETE if (func != NULL) */ -/* OBSOLETE p = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* Search backward to find the trace-back tag. However, */ -/* OBSOLETE do not trace back beyond the start of the text segment */ -/* OBSOLETE (just as a sanity check to avoid going into never-never land). */ */ -/* OBSOLETE #if 1 */ -/* OBSOLETE while (p >= text_start */ -/* OBSOLETE && ((insn = read_memory_integer (p, 4)) & TAGWORD_ZERO_MASK) != 0) */ -/* OBSOLETE p -= 4; */ -/* OBSOLETE #else /* 0 */ */ -/* OBSOLETE char pat[4] = */ -/* OBSOLETE {0, 0, 0, 0}; */ -/* OBSOLETE char mask[4]; */ -/* OBSOLETE char insn_raw[4]; */ -/* OBSOLETE store_unsigned_integer (mask, 4, TAGWORD_ZERO_MASK); */ -/* OBSOLETE /* Enable this once target_search is enabled and tested. */ */ -/* OBSOLETE target_search (4, pat, mask, p, -4, text_start, p + 1, &p, &insn_raw); */ -/* OBSOLETE insn = extract_unsigned_integer (insn_raw, 4); */ -/* OBSOLETE #endif /* 0 */ */ -/* OBSOLETE */ -/* OBSOLETE if (p < text_start) */ -/* OBSOLETE { */ -/* OBSOLETE /* Couldn't find the trace-back tag. */ -/* OBSOLETE Something strange is going on. */ */ -/* OBSOLETE frame->saved_msp = 0; */ -/* OBSOLETE frame->rsize = 0; */ -/* OBSOLETE frame->msize = 0; */ -/* OBSOLETE frame->flags = TRANSPARENT_FRAME; */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE /* Advance to the first word of the function, i.e. the word */ -/* OBSOLETE after the trace-back tag. */ */ -/* OBSOLETE p += 4; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* We've found the start of the function. */ -/* OBSOLETE Try looking for a tag word that indicates whether there is a */ -/* OBSOLETE memory frame pointer and what the memory stack allocation is. */ -/* OBSOLETE If one doesn't exist, try using a more exhaustive search of */ -/* OBSOLETE the prologue. */ */ -/* OBSOLETE */ -/* OBSOLETE if (examine_tag (p - 4, &trans, (int *) NULL, &msize, &mfp_used)) /* Found good tag */ */ -/* OBSOLETE examine_prologue (p, &rsize, 0, 0); */ -/* OBSOLETE else /* No tag try prologue */ */ -/* OBSOLETE examine_prologue (p, &rsize, &msize, &mfp_used); */ -/* OBSOLETE */ -/* OBSOLETE frame->rsize = rsize; */ -/* OBSOLETE frame->msize = msize; */ -/* OBSOLETE frame->flags = 0; */ -/* OBSOLETE if (mfp_used) */ -/* OBSOLETE frame->flags |= MFP_USED; */ -/* OBSOLETE if (trans) */ -/* OBSOLETE frame->flags |= TRANSPARENT_FRAME; */ -/* OBSOLETE if (innermost_frame) */ -/* OBSOLETE { */ -/* OBSOLETE frame->saved_msp = read_register (MSP_REGNUM) + msize; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE if (mfp_used) */ -/* OBSOLETE frame->saved_msp = */ -/* OBSOLETE read_register_stack_integer (frame->frame + rsize - 4, 4); */ -/* OBSOLETE else */ -/* OBSOLETE frame->saved_msp = frame->next->saved_msp + msize; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE init_extra_frame_info (struct frame_info *frame) */ -/* OBSOLETE { */ -/* OBSOLETE if (frame->next == 0) */ -/* OBSOLETE /* Assume innermost frame. May produce strange results for "info frame" */ -/* OBSOLETE but there isn't any way to tell the difference. */ */ -/* OBSOLETE init_frame_info (1, frame); */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* We're in get_prev_frame. */ -/* OBSOLETE Take care of everything in init_frame_pc. */ */ -/* OBSOLETE ; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE init_frame_pc (int fromleaf, struct frame_info *frame) */ -/* OBSOLETE { */ -/* OBSOLETE frame->pc = (fromleaf ? SAVED_PC_AFTER_CALL (frame->next) : */ -/* OBSOLETE frame->next ? FRAME_SAVED_PC (frame->next) : read_pc ()); */ -/* OBSOLETE init_frame_info (fromleaf, frame); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Local variables (i.e. LOC_LOCAL) are on the memory stack, with their */ -/* OBSOLETE offsets being relative to the memory stack pointer (high C) or */ -/* OBSOLETE saved_msp (gcc). */ */ -/* OBSOLETE */ -/* OBSOLETE CORE_ADDR */ -/* OBSOLETE frame_locals_address (struct frame_info *fi) */ -/* OBSOLETE { */ -/* OBSOLETE if (fi->flags & MFP_USED) */ -/* OBSOLETE return fi->saved_msp; */ -/* OBSOLETE else */ -/* OBSOLETE return fi->saved_msp - fi->msize; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Routines for reading the register stack. The caller gets to treat */ -/* OBSOLETE the register stack as a uniform stack in memory, from address $gr1 */ -/* OBSOLETE straight through $rfb and beyond. */ */ -/* OBSOLETE */ -/* OBSOLETE /* Analogous to read_memory except the length is understood to be 4. */ -/* OBSOLETE Also, myaddr can be NULL (meaning don't bother to read), and */ -/* OBSOLETE if actual_mem_addr is non-NULL, store there the address that it */ -/* OBSOLETE was fetched from (or if from a register the offset within */ -/* OBSOLETE registers). Set *LVAL to lval_memory or lval_register, depending */ -/* OBSOLETE on where it came from. The contents written into MYADDR are in */ -/* OBSOLETE target format. */ */ -/* OBSOLETE void */ -/* OBSOLETE read_register_stack (CORE_ADDR memaddr, char *myaddr, */ -/* OBSOLETE CORE_ADDR *actual_mem_addr, enum lval_type *lval) */ -/* OBSOLETE { */ -/* OBSOLETE long rfb = read_register (RFB_REGNUM); */ -/* OBSOLETE long rsp = read_register (RSP_REGNUM); */ -/* OBSOLETE */ -/* OBSOLETE /* If we don't do this 'info register' stops in the middle. */ */ -/* OBSOLETE if (memaddr >= rstack_high_address) */ -/* OBSOLETE { */ -/* OBSOLETE /* a bogus value */ */ -/* OBSOLETE static char val[] = */ -/* OBSOLETE {~0, ~0, ~0, ~0}; */ -/* OBSOLETE /* It's in a local register, but off the end of the stack. */ */ -/* OBSOLETE int regnum = (memaddr - rsp) / 4 + LR0_REGNUM; */ -/* OBSOLETE if (myaddr != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE /* Provide bogusness */ */ -/* OBSOLETE memcpy (myaddr, val, 4); */ -/* OBSOLETE } */ -/* OBSOLETE supply_register (regnum, val); /* More bogusness */ */ -/* OBSOLETE if (lval != NULL) */ -/* OBSOLETE *lval = lval_register; */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = REGISTER_BYTE (regnum); */ -/* OBSOLETE } */ -/* OBSOLETE /* If it's in the part of the register stack that's in real registers, */ -/* OBSOLETE get the value from the registers. If it's anywhere else in memory */ -/* OBSOLETE (e.g. in another thread's saved stack), skip this part and get */ -/* OBSOLETE it from real live memory. */ */ -/* OBSOLETE else if (memaddr < rfb && memaddr >= rsp) */ -/* OBSOLETE { */ -/* OBSOLETE /* It's in a register. */ */ -/* OBSOLETE int regnum = (memaddr - rsp) / 4 + LR0_REGNUM; */ -/* OBSOLETE if (regnum > LR0_REGNUM + 127) */ -/* OBSOLETE error ("Attempt to read register stack out of range."); */ -/* OBSOLETE if (myaddr != NULL) */ -/* OBSOLETE read_register_gen (regnum, myaddr); */ -/* OBSOLETE if (lval != NULL) */ -/* OBSOLETE *lval = lval_register; */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = REGISTER_BYTE (regnum); */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* It's in the memory portion of the register stack. */ */ -/* OBSOLETE if (myaddr != NULL) */ -/* OBSOLETE read_memory (memaddr, myaddr, 4); */ -/* OBSOLETE if (lval != NULL) */ -/* OBSOLETE *lval = lval_memory; */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = memaddr; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Analogous to read_memory_integer */ -/* OBSOLETE except the length is understood to be 4. */ */ -/* OBSOLETE long */ -/* OBSOLETE read_register_stack_integer (CORE_ADDR memaddr, int len) */ -/* OBSOLETE { */ -/* OBSOLETE char buf[4]; */ -/* OBSOLETE read_register_stack (memaddr, buf, NULL, NULL); */ -/* OBSOLETE return extract_signed_integer (buf, 4); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Copy 4 bytes from GDB memory at MYADDR into inferior memory */ -/* OBSOLETE at MEMADDR and put the actual address written into in */ -/* OBSOLETE *ACTUAL_MEM_ADDR. */ */ -/* OBSOLETE static void */ -/* OBSOLETE write_register_stack (CORE_ADDR memaddr, char *myaddr, */ -/* OBSOLETE CORE_ADDR *actual_mem_addr) */ -/* OBSOLETE { */ -/* OBSOLETE long rfb = read_register (RFB_REGNUM); */ -/* OBSOLETE long rsp = read_register (RSP_REGNUM); */ -/* OBSOLETE /* If we don't do this 'info register' stops in the middle. */ */ -/* OBSOLETE if (memaddr >= rstack_high_address) */ -/* OBSOLETE { */ -/* OBSOLETE /* It's in a register, but off the end of the stack. */ */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = 0; */ -/* OBSOLETE } */ -/* OBSOLETE else if (memaddr < rfb) */ -/* OBSOLETE { */ -/* OBSOLETE /* It's in a register. */ */ -/* OBSOLETE int regnum = (memaddr - rsp) / 4 + LR0_REGNUM; */ -/* OBSOLETE if (regnum < LR0_REGNUM || regnum > LR0_REGNUM + 127) */ -/* OBSOLETE error ("Attempt to read register stack out of range."); */ -/* OBSOLETE if (myaddr != NULL) */ -/* OBSOLETE write_register (regnum, *(long *) myaddr); */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = 0; */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE { */ -/* OBSOLETE /* It's in the memory portion of the register stack. */ */ -/* OBSOLETE if (myaddr != NULL) */ -/* OBSOLETE write_memory (memaddr, myaddr, 4); */ -/* OBSOLETE if (actual_mem_addr != NULL) */ -/* OBSOLETE *actual_mem_addr = memaddr; */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Find register number REGNUM relative to FRAME and put its */ -/* OBSOLETE (raw) contents in *RAW_BUFFER. Set *OPTIMIZED if the variable */ -/* OBSOLETE was optimized out (and thus can't be fetched). If the variable */ -/* OBSOLETE was fetched from memory, set *ADDRP to where it was fetched from, */ -/* OBSOLETE otherwise it was fetched from a register. */ -/* OBSOLETE */ -/* OBSOLETE The argument RAW_BUFFER must point to aligned memory. */ */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE a29k_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp, */ -/* OBSOLETE struct frame_info *frame, int regnum, */ -/* OBSOLETE enum lval_type *lvalp) */ -/* OBSOLETE { */ -/* OBSOLETE struct frame_info *fi; */ -/* OBSOLETE CORE_ADDR addr; */ -/* OBSOLETE enum lval_type lval; */ -/* OBSOLETE */ -/* OBSOLETE if (!target_has_registers) */ -/* OBSOLETE error ("No registers."); */ -/* OBSOLETE */ -/* OBSOLETE /* Probably now redundant with the target_has_registers check. */ */ -/* OBSOLETE if (frame == 0) */ -/* OBSOLETE return; */ -/* OBSOLETE */ -/* OBSOLETE /* Once something has a register number, it doesn't get optimized out. */ */ -/* OBSOLETE if (optimized != NULL) */ -/* OBSOLETE *optimized = 0; */ -/* OBSOLETE if (regnum == RSP_REGNUM) */ -/* OBSOLETE { */ -/* OBSOLETE if (raw_buffer != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), frame->frame); */ -/* OBSOLETE } */ -/* OBSOLETE if (lvalp != NULL) */ -/* OBSOLETE *lvalp = not_lval; */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE else if (regnum == PC_REGNUM && frame->next != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE if (raw_buffer != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), frame->pc); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Not sure we have to do this. */ */ -/* OBSOLETE if (lvalp != NULL) */ -/* OBSOLETE *lvalp = not_lval; */ -/* OBSOLETE */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE else if (regnum == MSP_REGNUM) */ -/* OBSOLETE { */ -/* OBSOLETE if (raw_buffer != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE if (frame->next != NULL) */ -/* OBSOLETE { */ -/* OBSOLETE store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), */ -/* OBSOLETE frame->next->saved_msp); */ -/* OBSOLETE } */ -/* OBSOLETE else */ -/* OBSOLETE read_register_gen (MSP_REGNUM, raw_buffer); */ -/* OBSOLETE } */ -/* OBSOLETE /* The value may have been computed, not fetched. */ */ -/* OBSOLETE if (lvalp != NULL) */ -/* OBSOLETE *lvalp = not_lval; */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE else if (regnum < LR0_REGNUM || regnum >= LR0_REGNUM + 128) */ -/* OBSOLETE { */ -/* OBSOLETE /* These registers are not saved over procedure calls, */ -/* OBSOLETE so just print out the current values. */ */ -/* OBSOLETE if (raw_buffer != NULL) */ -/* OBSOLETE read_register_gen (regnum, raw_buffer); */ -/* OBSOLETE if (lvalp != NULL) */ -/* OBSOLETE *lvalp = lval_register; */ -/* OBSOLETE if (addrp != NULL) */ -/* OBSOLETE *addrp = REGISTER_BYTE (regnum); */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE addr = frame->frame + (regnum - LR0_REGNUM) * 4; */ -/* OBSOLETE if (raw_buffer != NULL) */ -/* OBSOLETE read_register_stack (addr, raw_buffer, &addr, &lval); */ -/* OBSOLETE if (lvalp != NULL) */ -/* OBSOLETE *lvalp = lval; */ -/* OBSOLETE if (addrp != NULL) */ -/* OBSOLETE *addrp = addr; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE */ -/* OBSOLETE /* Discard from the stack the innermost frame, */ -/* OBSOLETE restoring all saved registers. */ */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE pop_frame (void) */ -/* OBSOLETE { */ -/* OBSOLETE struct frame_info *frame = get_current_frame (); */ -/* OBSOLETE CORE_ADDR rfb = read_register (RFB_REGNUM); */ -/* OBSOLETE CORE_ADDR gr1 = frame->frame + frame->rsize; */ -/* OBSOLETE CORE_ADDR lr1; */ -/* OBSOLETE CORE_ADDR original_lr0; */ -/* OBSOLETE int must_fix_lr0 = 0; */ -/* OBSOLETE int i; */ -/* OBSOLETE */ -/* OBSOLETE /* If popping a dummy frame, need to restore registers. */ */ -/* OBSOLETE if (PC_IN_CALL_DUMMY (read_register (PC_REGNUM), */ -/* OBSOLETE read_register (SP_REGNUM), */ -/* OBSOLETE FRAME_FP (frame))) */ -/* OBSOLETE { */ -/* OBSOLETE int lrnum = LR0_REGNUM + DUMMY_ARG / 4; */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_SR128; ++i) */ -/* OBSOLETE write_register (SR_REGNUM (i + 128), read_register (lrnum++)); */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_SR160; ++i) */ -/* OBSOLETE write_register (SR_REGNUM (i + 160), read_register (lrnum++)); */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_GREGS; ++i) */ -/* OBSOLETE write_register (RETURN_REGNUM + i, read_register (lrnum++)); */ -/* OBSOLETE /* Restore the PCs and prepare to restore LR0. */ */ -/* OBSOLETE write_register (PC_REGNUM, read_register (lrnum++)); */ -/* OBSOLETE write_register (NPC_REGNUM, read_register (lrnum++)); */ -/* OBSOLETE write_register (PC2_REGNUM, read_register (lrnum++)); */ -/* OBSOLETE original_lr0 = read_register (lrnum++); */ -/* OBSOLETE must_fix_lr0 = 1; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Restore the memory stack pointer. */ */ -/* OBSOLETE write_register (MSP_REGNUM, frame->saved_msp); */ -/* OBSOLETE /* Restore the register stack pointer. */ */ -/* OBSOLETE write_register (GR1_REGNUM, gr1); */ -/* OBSOLETE */ -/* OBSOLETE /* If we popped a dummy frame, restore lr0 now that gr1 has been restored. */ */ -/* OBSOLETE if (must_fix_lr0) */ -/* OBSOLETE write_register (LR0_REGNUM, original_lr0); */ -/* OBSOLETE */ -/* OBSOLETE /* Check whether we need to fill registers. */ */ -/* OBSOLETE lr1 = read_register (LR0_REGNUM + 1); */ -/* OBSOLETE if (lr1 > rfb) */ -/* OBSOLETE { */ -/* OBSOLETE /* Fill. */ */ -/* OBSOLETE int num_bytes = lr1 - rfb; */ -/* OBSOLETE int i; */ -/* OBSOLETE long word; */ -/* OBSOLETE */ -/* OBSOLETE write_register (RAB_REGNUM, read_register (RAB_REGNUM) + num_bytes); */ -/* OBSOLETE write_register (RFB_REGNUM, lr1); */ -/* OBSOLETE for (i = 0; i < num_bytes; i += 4) */ -/* OBSOLETE { */ -/* OBSOLETE /* Note: word is in host byte order. */ */ -/* OBSOLETE word = read_memory_integer (rfb + i, 4); */ -/* OBSOLETE write_register (LR0_REGNUM + ((rfb - gr1) % 0x80) + i / 4, word); */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE flush_cached_frames (); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* Push an empty stack frame, to record the current PC, etc. */ */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE push_dummy_frame (void) */ -/* OBSOLETE { */ -/* OBSOLETE long w; */ -/* OBSOLETE CORE_ADDR rab, gr1; */ -/* OBSOLETE CORE_ADDR msp = read_register (MSP_REGNUM); */ -/* OBSOLETE int lrnum, i; */ -/* OBSOLETE CORE_ADDR original_lr0; */ -/* OBSOLETE */ -/* OBSOLETE /* Read original lr0 before changing gr1. This order isn't really needed */ -/* OBSOLETE since GDB happens to have a snapshot of all the regs and doesn't toss */ -/* OBSOLETE it when gr1 is changed. But it's The Right Thing To Do. */ */ -/* OBSOLETE original_lr0 = read_register (LR0_REGNUM); */ -/* OBSOLETE */ -/* OBSOLETE /* Allocate the new frame. */ */ -/* OBSOLETE gr1 = read_register (GR1_REGNUM) - DUMMY_FRAME_RSIZE; */ -/* OBSOLETE write_register (GR1_REGNUM, gr1); */ -/* OBSOLETE */ -/* OBSOLETE #ifdef VXWORKS_TARGET */ -/* OBSOLETE /* We force re-reading all registers to get the new local registers set */ -/* OBSOLETE after gr1 has been modified. This fix is due to the lack of single */ -/* OBSOLETE register read/write operation in the RPC interface between VxGDB and */ -/* OBSOLETE VxWorks. This really must be changed ! */ */ -/* OBSOLETE */ -/* OBSOLETE vx_read_register (-1); */ -/* OBSOLETE */ -/* OBSOLETE #endif /* VXWORK_TARGET */ */ -/* OBSOLETE */ -/* OBSOLETE rab = read_register (RAB_REGNUM); */ -/* OBSOLETE if (gr1 < rab) */ -/* OBSOLETE { */ -/* OBSOLETE /* We need to spill registers. */ */ -/* OBSOLETE int num_bytes = rab - gr1; */ -/* OBSOLETE CORE_ADDR rfb = read_register (RFB_REGNUM); */ -/* OBSOLETE int i; */ -/* OBSOLETE long word; */ -/* OBSOLETE */ -/* OBSOLETE write_register (RFB_REGNUM, rfb - num_bytes); */ -/* OBSOLETE write_register (RAB_REGNUM, gr1); */ -/* OBSOLETE for (i = 0; i < num_bytes; i += 4) */ -/* OBSOLETE { */ -/* OBSOLETE /* Note: word is in target byte order. */ */ -/* OBSOLETE read_register_gen (LR0_REGNUM + i / 4, (char *) &word); */ -/* OBSOLETE write_memory (rfb - num_bytes + i, (char *) &word, 4); */ -/* OBSOLETE } */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE /* There are no arguments in to the dummy frame, so we don't need */ -/* OBSOLETE more than rsize plus the return address and lr1. */ */ -/* OBSOLETE write_register (LR0_REGNUM + 1, gr1 + DUMMY_FRAME_RSIZE + 2 * 4); */ -/* OBSOLETE */ -/* OBSOLETE /* Set the memory frame pointer. */ */ -/* OBSOLETE write_register (LR0_REGNUM + DUMMY_FRAME_RSIZE / 4 - 1, msp); */ -/* OBSOLETE */ -/* OBSOLETE /* Allocate arg_slop. */ */ -/* OBSOLETE write_register (MSP_REGNUM, msp - 16 * 4); */ -/* OBSOLETE */ -/* OBSOLETE /* Save registers. */ */ -/* OBSOLETE lrnum = LR0_REGNUM + DUMMY_ARG / 4; */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_SR128; ++i) */ -/* OBSOLETE write_register (lrnum++, read_register (SR_REGNUM (i + 128))); */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_SR160; ++i) */ -/* OBSOLETE write_register (lrnum++, read_register (SR_REGNUM (i + 160))); */ -/* OBSOLETE for (i = 0; i < DUMMY_SAVE_GREGS; ++i) */ -/* OBSOLETE write_register (lrnum++, read_register (RETURN_REGNUM + i)); */ -/* OBSOLETE /* Save the PCs and LR0. */ */ -/* OBSOLETE write_register (lrnum++, read_register (PC_REGNUM)); */ -/* OBSOLETE write_register (lrnum++, read_register (NPC_REGNUM)); */ -/* OBSOLETE write_register (lrnum++, read_register (PC2_REGNUM)); */ -/* OBSOLETE */ -/* OBSOLETE /* Why are we saving LR0? What would clobber it? (the dummy frame should */ -/* OBSOLETE be below it on the register stack, no?). */ */ -/* OBSOLETE write_register (lrnum++, original_lr0); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE */ -/* OBSOLETE */ -/* OBSOLETE /* */ -/* OBSOLETE This routine takes three arguments and makes the cached frames look */ -/* OBSOLETE as if these arguments defined a frame on the cache. This allows the */ -/* OBSOLETE rest of `info frame' to extract the important arguments without much */ -/* OBSOLETE difficulty. Since an individual frame on the 29K is determined by */ -/* OBSOLETE three values (FP, PC, and MSP), we really need all three to do a */ -/* OBSOLETE good job. */ */ -/* OBSOLETE */ -/* OBSOLETE struct frame_info * */ -/* OBSOLETE setup_arbitrary_frame (int argc, CORE_ADDR *argv) */ -/* OBSOLETE { */ -/* OBSOLETE struct frame_info *frame; */ -/* OBSOLETE */ -/* OBSOLETE if (argc != 3) */ -/* OBSOLETE error ("AMD 29k frame specifications require three arguments: rsp pc msp"); */ -/* OBSOLETE */ -/* OBSOLETE frame = create_new_frame (argv[0], argv[1]); */ -/* OBSOLETE */ -/* OBSOLETE if (!frame) */ -/* OBSOLETE internal_error (__FILE__, __LINE__, */ -/* OBSOLETE "create_new_frame returned invalid frame id"); */ -/* OBSOLETE */ -/* OBSOLETE /* Creating a new frame munges the `frame' value from the current */ -/* OBSOLETE GR1, so we restore it again here. FIXME, untangle all this */ -/* OBSOLETE 29K frame stuff... */ */ -/* OBSOLETE frame->frame = argv[0]; */ -/* OBSOLETE */ -/* OBSOLETE /* Our MSP is in argv[2]. It'd be intelligent if we could just */ -/* OBSOLETE save this value in the FRAME. But the way it's set up (FIXME), */ -/* OBSOLETE we must save our caller's MSP. We compute that by adding our */ -/* OBSOLETE memory stack frame size to our MSP. */ */ -/* OBSOLETE frame->saved_msp = argv[2] + frame->msize; */ -/* OBSOLETE */ -/* OBSOLETE return frame; */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE int */ -/* OBSOLETE gdb_print_insn_a29k (bfd_vma memaddr, disassemble_info *info) */ -/* OBSOLETE { */ -/* OBSOLETE if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) */ -/* OBSOLETE return print_insn_big_a29k (memaddr, info); */ -/* OBSOLETE else */ -/* OBSOLETE return print_insn_little_a29k (memaddr, info); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE enum a29k_processor_types processor_type = a29k_unknown; */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE a29k_get_processor_type (void) */ -/* OBSOLETE { */ -/* OBSOLETE unsigned int cfg_reg = (unsigned int) read_register (CFG_REGNUM); */ -/* OBSOLETE */ -/* OBSOLETE /* Most of these don't have freeze mode. */ */ -/* OBSOLETE processor_type = a29k_no_freeze_mode; */ -/* OBSOLETE */ -/* OBSOLETE switch ((cfg_reg >> 28) & 0xf) */ -/* OBSOLETE { */ -/* OBSOLETE case 0: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29000"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 1: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29005"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 2: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29050"); */ -/* OBSOLETE processor_type = a29k_freeze_mode; */ -/* OBSOLETE break; */ -/* OBSOLETE case 3: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29035"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 4: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29030"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 5: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am2920*"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 6: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am2924*"); */ -/* OBSOLETE break; */ -/* OBSOLETE case 7: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an Am29040"); */ -/* OBSOLETE break; */ -/* OBSOLETE default: */ -/* OBSOLETE fprintf_filtered (gdb_stderr, "Remote debugging an unknown Am29k\n"); */ -/* OBSOLETE /* Don't bother to print the revision. */ */ -/* OBSOLETE return; */ -/* OBSOLETE } */ -/* OBSOLETE fprintf_filtered (gdb_stderr, " revision %c\n", 'A' + ((cfg_reg >> 24) & 0x0f)); */ -/* OBSOLETE } */ -/* OBSOLETE */ -/* OBSOLETE #ifdef GET_LONGJMP_TARGET */ -/* OBSOLETE /* Figure out where the longjmp will land. We expect that we have just entered */ -/* OBSOLETE longjmp and haven't yet setup the stack frame, so the args are still in the */ -/* OBSOLETE output regs. lr2 (LR2_REGNUM) points at the jmp_buf structure from which we */ -/* OBSOLETE extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. */ -/* OBSOLETE This routine returns true on success */ */ -/* OBSOLETE */ -/* OBSOLETE int */ -/* OBSOLETE get_longjmp_target (CORE_ADDR *pc) */ -/* OBSOLETE { */ -/* OBSOLETE CORE_ADDR jb_addr; */ -/* OBSOLETE char buf[sizeof (CORE_ADDR)]; */ -/* OBSOLETE */ -/* OBSOLETE jb_addr = read_register (LR2_REGNUM); */ -/* OBSOLETE */ -/* OBSOLETE if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, (char *) buf, */ -/* OBSOLETE sizeof (CORE_ADDR))) */ -/* OBSOLETE return 0; */ -/* OBSOLETE */ -/* OBSOLETE *pc = extract_address ((PTR) buf, sizeof (CORE_ADDR)); */ -/* OBSOLETE return 1; */ -/* OBSOLETE } */ -/* OBSOLETE #endif /* GET_LONGJMP_TARGET */ */ -/* OBSOLETE */ -/* OBSOLETE void */ -/* OBSOLETE _initialize_a29k_tdep (void) */ -/* OBSOLETE { */ -/* OBSOLETE extern CORE_ADDR text_end; */ -/* OBSOLETE */ -/* OBSOLETE tm_print_insn = gdb_print_insn_a29k; */ -/* OBSOLETE */ -/* OBSOLETE /* FIXME, there should be a way to make a CORE_ADDR variable settable. */ */ -/* OBSOLETE add_show_from_set */ -/* OBSOLETE (add_set_cmd ("rstack_high_address", class_support, var_uinteger, */ -/* OBSOLETE (char *) &rstack_high_address, */ -/* OBSOLETE "Set top address in memory of the register stack.\n\ */ -/* OBSOLETE Attempts to access registers saved above this address will be ignored\n\ */ -/* OBSOLETE or will produce the value -1.", &setlist), */ -/* OBSOLETE &showlist); */ -/* OBSOLETE */ -/* OBSOLETE /* FIXME, there should be a way to make a CORE_ADDR variable settable. */ */ -/* OBSOLETE add_show_from_set */ -/* OBSOLETE (add_set_cmd ("call_scratch_address", class_support, var_uinteger, */ -/* OBSOLETE (char *) &text_end, */ -/* OBSOLETE "Set address in memory where small amounts of RAM can be used\n\ */ -/* OBSOLETE when making function calls into the inferior.", &setlist), */ -/* OBSOLETE &showlist); */ -/* OBSOLETE } */ |