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author | Andrew Cagney <cagney@redhat.com> | 2002-12-16 20:39:23 +0000 |
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committer | Andrew Cagney <cagney@redhat.com> | 2002-12-16 20:39:23 +0000 |
commit | 1a14e23479eb187b1837310243d1a3ffe7b95e0c (patch) | |
tree | abd21a673167499137de7ee3a335eca5b159f120 /gdb/m88k-tdep.c | |
parent | da81390ba627de5fee7615d00f2116253c65a5a4 (diff) | |
download | gdb-1a14e23479eb187b1837310243d1a3ffe7b95e0c.zip gdb-1a14e23479eb187b1837310243d1a3ffe7b95e0c.tar.gz gdb-1a14e23479eb187b1837310243d1a3ffe7b95e0c.tar.bz2 |
2002-12-16 Andrew Cagney <ac131313@redhat.com>
* config/arc/arc.mt, config/arc/tm-arc.h: Delete.
* config/d30v/d30v.mt, config/d30v/tm-d30v.h: Delete.
* config/fr30/fr30.mt, config/fr30/tm-fr30.h: Delete.
* config/i386/i386aix.mh, config/i386/i386aix.mt: Delete.
* config/i386/i386m3.mh, config/i386/i386m3.mt: Delete.
* config/i386/i386mach.mh, config/i386/i386os9k.mt: Delete.
* config/i386/nm-i386aix.h, config/i386/nm-i386mach.h: Delete.
* config/i386/nm-m3.h, config/i386/tm-i386aix.h: Delete.
* config/i386/tm-i386m3.h, config/i386/tm-i386mk.h: Delete.
* config/i386/xm-i386aix.h, config/i386/xm-i386m3.h: Delete.
* config/i386/xm-i386mach.h, config/i386/xm-i386mk.h: Delete.
* config/i960/mon960.mt, config/i960/nindy960.mt: Delete.
* config/i960/tm-i960.h, config/i960/tm-mon960.h: Delete.
* config/i960/tm-nindy960.h, config/i960/tm-vx960.h: Delete.
* config/i960/vxworks960.mt, config/m68k/apollo68b.mh: Delete.
* config/m68k/apollo68b.mt, config/m68k/apollo68v.mh: Delete.
* config/m68k/hp300bsd.mh, config/m68k/hp300bsd.mt: Delete.
* config/m68k/hp300hpux.mh, config/m68k/hp300hpux.mt: Delete.
* config/m88k/delta88.mh, config/m88k/delta88.mt: Delete.
* config/m88k/delta88v4.mh, config/m88k/delta88v4.mt: Delete.
* config/m88k/m88k.mh, config/m88k/m88k.mt: Delete.
* config/m88k/nm-delta88v4.h, config/m88k/nm-m88k.h: Delete.
* config/m88k/tm-delta88.h, config/m88k/tm-delta88v4.h: Delete.
* config/m88k/tm-m88k.h, config/m88k/xm-delta88.h: Delete.
* config/m88k/xm-dgux.h: Delete.
* fr30-tdep.c, i386aix-nat.c, i386m3-nat.c: Delete.
* i386mach-nat.c, i960-tdep.c, m88k-nat.c: Delete.
* os9kread.c, remote-bug.c, remote-nindy.c: Delete.
* remote-nrom.c, remote-os9k.c, remote-vx960.c: Delete.
* d30v-tdep.c, arc-tdep.c, cxux-nat.c, dst.h, dstread.c: Delete.
* ch-exp.c, ch-lang.c, ch-lang.h, ch-typeprint.c: Delete.
* ch-valprint.c: Delete.
Diffstat (limited to 'gdb/m88k-tdep.c')
-rw-r--r-- | gdb/m88k-tdep.c | 661 |
1 files changed, 0 insertions, 661 deletions
diff --git a/gdb/m88k-tdep.c b/gdb/m88k-tdep.c deleted file mode 100644 index da0b67c..0000000 --- a/gdb/m88k-tdep.c +++ /dev/null @@ -1,661 +0,0 @@ -// OBSOLETE /* Target-machine dependent code for Motorola 88000 series, for GDB. -// OBSOLETE -// OBSOLETE Copyright 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, -// OBSOLETE 2000, 2001, 2002 Free Software Foundation, Inc. -// 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 "frame.h" -// OBSOLETE #include "inferior.h" -// OBSOLETE #include "value.h" -// OBSOLETE #include "gdbcore.h" -// OBSOLETE #include "symtab.h" -// OBSOLETE #include "setjmp.h" -// OBSOLETE #include "value.h" -// OBSOLETE #include "regcache.h" -// OBSOLETE -// OBSOLETE /* Size of an instruction */ -// OBSOLETE #define BYTES_PER_88K_INSN 4 -// OBSOLETE -// OBSOLETE void frame_find_saved_regs (); -// OBSOLETE -// OBSOLETE /* Is this target an m88110? Otherwise assume m88100. This has -// OBSOLETE relevance for the ways in which we screw with instruction pointers. */ -// OBSOLETE -// OBSOLETE int target_is_m88110 = 0; -// OBSOLETE -// OBSOLETE void -// OBSOLETE m88k_target_write_pc (CORE_ADDR pc, ptid_t ptid) -// OBSOLETE { -// OBSOLETE /* According to the MC88100 RISC Microprocessor User's Manual, -// OBSOLETE section 6.4.3.1.2: -// OBSOLETE -// OBSOLETE ... can be made to return to a particular instruction by placing -// OBSOLETE a valid instruction address in the SNIP and the next sequential -// OBSOLETE instruction address in the SFIP (with V bits set and E bits -// OBSOLETE clear). The rte resumes execution at the instruction pointed to -// OBSOLETE by the SNIP, then the SFIP. -// OBSOLETE -// OBSOLETE The E bit is the least significant bit (bit 0). The V (valid) -// OBSOLETE bit is bit 1. This is why we logical or 2 into the values we are -// OBSOLETE writing below. It turns out that SXIP plays no role when -// OBSOLETE returning from an exception so nothing special has to be done -// OBSOLETE with it. We could even (presumably) give it a totally bogus -// OBSOLETE value. -// OBSOLETE -// OBSOLETE -- Kevin Buettner */ -// OBSOLETE -// OBSOLETE write_register_pid (SXIP_REGNUM, pc, ptid); -// OBSOLETE write_register_pid (SNIP_REGNUM, (pc | 2), ptid); -// OBSOLETE write_register_pid (SFIP_REGNUM, (pc | 2) + 4, ptid); -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* The type of a register. */ -// OBSOLETE struct type * -// OBSOLETE m88k_register_type (int regnum) -// OBSOLETE { -// OBSOLETE if (regnum >= XFP_REGNUM) -// OBSOLETE return builtin_type_m88110_ext; -// OBSOLETE else if (regnum == PC_REGNUM || regnum == FP_REGNUM || regnum == SP_REGNUM) -// OBSOLETE return builtin_type_void_func_ptr; -// OBSOLETE else -// OBSOLETE return builtin_type_int32; -// OBSOLETE } -// OBSOLETE -// OBSOLETE -// OBSOLETE /* The m88k kernel aligns all instructions on 4-byte boundaries. The -// OBSOLETE kernel also uses the least significant two bits for its own hocus -// OBSOLETE pocus. When gdb receives an address from the kernel, it needs to -// OBSOLETE preserve those right-most two bits, but gdb also needs to be careful -// OBSOLETE to realize that those two bits are not really a part of the address -// OBSOLETE of an instruction. Shrug. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE m88k_addr_bits_remove (CORE_ADDR addr) -// OBSOLETE { -// OBSOLETE return ((addr) & ~3); -// OBSOLETE } -// OBSOLETE -// OBSOLETE -// OBSOLETE /* Given a GDB frame, determine the address of the calling function's frame. -// OBSOLETE This will be used to create a new GDB frame struct, and then -// OBSOLETE INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. -// OBSOLETE -// OBSOLETE For us, the frame address is its stack pointer value, so we look up -// OBSOLETE the function prologue to determine the caller's sp value, and return it. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE frame_chain (struct frame_info *thisframe) -// OBSOLETE { -// OBSOLETE -// OBSOLETE frame_find_saved_regs (thisframe, (struct frame_saved_regs *) 0); -// OBSOLETE /* NOTE: this depends on frame_find_saved_regs returning the VALUE, not -// OBSOLETE the ADDRESS, of SP_REGNUM. It also depends on the cache of -// OBSOLETE frame_find_saved_regs results. */ -// OBSOLETE if (thisframe->fsr->regs[SP_REGNUM]) -// OBSOLETE return thisframe->fsr->regs[SP_REGNUM]; -// OBSOLETE else -// OBSOLETE return thisframe->frame; /* Leaf fn -- next frame up has same SP. */ -// OBSOLETE } -// OBSOLETE -// OBSOLETE int -// OBSOLETE frameless_function_invocation (struct frame_info *frame) -// OBSOLETE { -// OBSOLETE -// OBSOLETE frame_find_saved_regs (frame, (struct frame_saved_regs *) 0); -// OBSOLETE /* NOTE: this depends on frame_find_saved_regs returning the VALUE, not -// OBSOLETE the ADDRESS, of SP_REGNUM. It also depends on the cache of -// OBSOLETE frame_find_saved_regs results. */ -// OBSOLETE if (frame->fsr->regs[SP_REGNUM]) -// OBSOLETE return 0; /* Frameful -- return addr saved somewhere */ -// OBSOLETE else -// OBSOLETE return 1; /* Frameless -- no saved return address */ -// OBSOLETE } -// OBSOLETE -// OBSOLETE void -// OBSOLETE init_extra_frame_info (int fromleaf, struct frame_info *frame) -// OBSOLETE { -// OBSOLETE frame->fsr = 0; /* Not yet allocated */ -// OBSOLETE frame->args_pointer = 0; /* Unknown */ -// OBSOLETE frame->locals_pointer = 0; /* Unknown */ -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Examine an m88k function prologue, recording the addresses at which -// OBSOLETE registers are saved explicitly by the prologue code, and returning -// OBSOLETE the address of the first instruction after the prologue (but not -// OBSOLETE after the instruction at address LIMIT, as explained below). -// OBSOLETE -// OBSOLETE LIMIT places an upper bound on addresses of the instructions to be -// OBSOLETE examined. If the prologue code scan reaches LIMIT, the scan is -// OBSOLETE aborted and LIMIT is returned. This is used, when examining the -// OBSOLETE prologue for the current frame, to keep examine_prologue () from -// OBSOLETE claiming that a given register has been saved when in fact the -// OBSOLETE instruction that saves it has not yet been executed. LIMIT is used -// OBSOLETE at other times to stop the scan when we hit code after the true -// OBSOLETE function prologue (e.g. for the first source line) which might -// OBSOLETE otherwise be mistaken for function prologue. -// OBSOLETE -// OBSOLETE The format of the function prologue matched by this routine is -// OBSOLETE derived from examination of the source to gcc 1.95, particularly -// OBSOLETE the routine output_prologue () in config/out-m88k.c. -// OBSOLETE -// OBSOLETE subu r31,r31,n # stack pointer update -// OBSOLETE -// OBSOLETE (st rn,r31,offset)? # save incoming regs -// OBSOLETE (st.d rn,r31,offset)? -// OBSOLETE -// OBSOLETE (addu r30,r31,n)? # frame pointer update -// OBSOLETE -// OBSOLETE (pic sequence)? # PIC code prologue -// OBSOLETE -// OBSOLETE (or rn,rm,0)? # Move parameters to other regs -// OBSOLETE */ -// OBSOLETE -// OBSOLETE /* Macros for extracting fields from instructions. */ -// OBSOLETE -// OBSOLETE #define BITMASK(pos, width) (((0x1 << (width)) - 1) << (pos)) -// OBSOLETE #define EXTRACT_FIELD(val, pos, width) ((val) >> (pos) & BITMASK (0, width)) -// OBSOLETE #define SUBU_OFFSET(x) ((unsigned)(x & 0xFFFF)) -// OBSOLETE #define ST_OFFSET(x) ((unsigned)((x) & 0xFFFF)) -// OBSOLETE #define ST_SRC(x) EXTRACT_FIELD ((x), 21, 5) -// OBSOLETE #define ADDU_OFFSET(x) ((unsigned)(x & 0xFFFF)) -// OBSOLETE -// OBSOLETE /* -// OBSOLETE * prologue_insn_tbl is a table of instructions which may comprise a -// OBSOLETE * function prologue. Associated with each table entry (corresponding -// OBSOLETE * to a single instruction or group of instructions), is an action. -// OBSOLETE * This action is used by examine_prologue (below) to determine -// OBSOLETE * the state of certain machine registers and where the stack frame lives. -// OBSOLETE */ -// OBSOLETE -// OBSOLETE enum prologue_insn_action -// OBSOLETE { -// OBSOLETE PIA_SKIP, /* don't care what the instruction does */ -// OBSOLETE PIA_NOTE_ST, /* note register stored and where */ -// OBSOLETE PIA_NOTE_STD, /* note pair of registers stored and where */ -// OBSOLETE PIA_NOTE_SP_ADJUSTMENT, /* note stack pointer adjustment */ -// OBSOLETE PIA_NOTE_FP_ASSIGNMENT, /* note frame pointer assignment */ -// OBSOLETE PIA_NOTE_PROLOGUE_END, /* no more prologue */ -// OBSOLETE }; -// OBSOLETE -// OBSOLETE struct prologue_insns -// OBSOLETE { -// OBSOLETE unsigned long insn; -// OBSOLETE unsigned long mask; -// OBSOLETE enum prologue_insn_action action; -// OBSOLETE }; -// OBSOLETE -// OBSOLETE struct prologue_insns prologue_insn_tbl[] = -// OBSOLETE { -// OBSOLETE /* Various register move instructions */ -// OBSOLETE {0x58000000, 0xf800ffff, PIA_SKIP}, /* or/or.u with immed of 0 */ -// OBSOLETE {0xf4005800, 0xfc1fffe0, PIA_SKIP}, /* or rd, r0, rs */ -// OBSOLETE {0xf4005800, 0xfc00ffff, PIA_SKIP}, /* or rd, rs, r0 */ -// OBSOLETE -// OBSOLETE /* Stack pointer setup: "subu sp, sp, n" where n is a multiple of 8 */ -// OBSOLETE {0x67ff0000, 0xffff0007, PIA_NOTE_SP_ADJUSTMENT}, -// OBSOLETE -// OBSOLETE /* Frame pointer assignment: "addu r30, r31, n" */ -// OBSOLETE {0x63df0000, 0xffff0000, PIA_NOTE_FP_ASSIGNMENT}, -// OBSOLETE -// OBSOLETE /* Store to stack instructions; either "st rx, sp, n" or "st.d rx, sp, n" */ -// OBSOLETE {0x241f0000, 0xfc1f0000, PIA_NOTE_ST}, /* st rx, sp, n */ -// OBSOLETE {0x201f0000, 0xfc1f0000, PIA_NOTE_STD}, /* st.d rs, sp, n */ -// OBSOLETE -// OBSOLETE /* Instructions needed for setting up r25 for pic code. */ -// OBSOLETE {0x5f200000, 0xffff0000, PIA_SKIP}, /* or.u r25, r0, offset_high */ -// OBSOLETE {0xcc000002, 0xffffffff, PIA_SKIP}, /* bsr.n Lab */ -// OBSOLETE {0x5b390000, 0xffff0000, PIA_SKIP}, /* or r25, r25, offset_low */ -// OBSOLETE {0xf7396001, 0xffffffff, PIA_SKIP}, /* Lab: addu r25, r25, r1 */ -// OBSOLETE -// OBSOLETE /* Various branch or jump instructions which have a delay slot -- these -// OBSOLETE do not form part of the prologue, but the instruction in the delay -// OBSOLETE slot might be a store instruction which should be noted. */ -// OBSOLETE {0xc4000000, 0xe4000000, PIA_NOTE_PROLOGUE_END}, -// OBSOLETE /* br.n, bsr.n, bb0.n, or bb1.n */ -// OBSOLETE {0xec000000, 0xfc000000, PIA_NOTE_PROLOGUE_END}, /* bcnd.n */ -// OBSOLETE {0xf400c400, 0xfffff7e0, PIA_NOTE_PROLOGUE_END} /* jmp.n or jsr.n */ -// OBSOLETE -// OBSOLETE }; -// OBSOLETE -// OBSOLETE -// OBSOLETE /* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or -// OBSOLETE is not the address of a valid instruction, the address of the next -// OBSOLETE instruction beyond ADDR otherwise. *PWORD1 receives the first word -// OBSOLETE of the instruction. */ -// OBSOLETE -// OBSOLETE #define NEXT_PROLOGUE_INSN(addr, lim, pword1) \ -// OBSOLETE (((addr) < (lim)) ? next_insn (addr, pword1) : 0) -// OBSOLETE -// OBSOLETE /* Read the m88k instruction at 'memaddr' and return the address of -// OBSOLETE the next instruction after that, or 0 if 'memaddr' is not the -// OBSOLETE address of a valid instruction. The instruction -// OBSOLETE is stored at 'pword1'. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE next_insn (CORE_ADDR memaddr, unsigned long *pword1) -// OBSOLETE { -// OBSOLETE *pword1 = read_memory_integer (memaddr, BYTES_PER_88K_INSN); -// OBSOLETE return memaddr + BYTES_PER_88K_INSN; -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Read a register from frames called by us (or from the hardware regs). */ -// OBSOLETE -// OBSOLETE static int -// OBSOLETE read_next_frame_reg (struct frame_info *frame, int regno) -// OBSOLETE { -// OBSOLETE for (; frame; frame = frame->next) -// OBSOLETE { -// OBSOLETE if (regno == SP_REGNUM) -// OBSOLETE return FRAME_FP (frame); -// OBSOLETE else if (frame->fsr->regs[regno]) -// OBSOLETE return read_memory_integer (frame->fsr->regs[regno], 4); -// OBSOLETE } -// OBSOLETE return read_register (regno); -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Examine the prologue of a function. `ip' points to the first instruction. -// OBSOLETE `limit' is the limit of the prologue (e.g. the addr of the first -// OBSOLETE linenumber, or perhaps the program counter if we're stepping through). -// OBSOLETE `frame_sp' is the stack pointer value in use in this frame. -// OBSOLETE `fsr' is a pointer to a frame_saved_regs structure into which we put -// OBSOLETE info about the registers saved by this frame. -// OBSOLETE `fi' is a struct frame_info pointer; we fill in various fields in it -// OBSOLETE to reflect the offsets of the arg pointer and the locals pointer. */ -// OBSOLETE -// OBSOLETE static CORE_ADDR -// OBSOLETE examine_prologue (register CORE_ADDR ip, register CORE_ADDR limit, -// OBSOLETE CORE_ADDR frame_sp, struct frame_saved_regs *fsr, -// OBSOLETE struct frame_info *fi) -// OBSOLETE { -// OBSOLETE register CORE_ADDR next_ip; -// OBSOLETE register int src; -// OBSOLETE unsigned long insn; -// OBSOLETE int size, offset; -// OBSOLETE char must_adjust[32]; /* If set, must adjust offsets in fsr */ -// OBSOLETE int sp_offset = -1; /* -1 means not set (valid must be mult of 8) */ -// OBSOLETE int fp_offset = -1; /* -1 means not set */ -// OBSOLETE CORE_ADDR frame_fp; -// OBSOLETE CORE_ADDR prologue_end = 0; -// OBSOLETE -// OBSOLETE memset (must_adjust, '\0', sizeof (must_adjust)); -// OBSOLETE next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn); -// OBSOLETE -// OBSOLETE while (next_ip) -// OBSOLETE { -// OBSOLETE struct prologue_insns *pip; -// OBSOLETE -// OBSOLETE for (pip = prologue_insn_tbl; (insn & pip->mask) != pip->insn;) -// OBSOLETE if (++pip >= prologue_insn_tbl + sizeof prologue_insn_tbl) -// OBSOLETE goto end_of_prologue_found; /* not a prologue insn */ -// OBSOLETE -// OBSOLETE switch (pip->action) -// OBSOLETE { -// OBSOLETE case PIA_NOTE_ST: -// OBSOLETE case PIA_NOTE_STD: -// OBSOLETE if (sp_offset != -1) -// OBSOLETE { -// OBSOLETE src = ST_SRC (insn); -// OBSOLETE offset = ST_OFFSET (insn); -// OBSOLETE must_adjust[src] = 1; -// OBSOLETE fsr->regs[src++] = offset; /* Will be adjusted later */ -// OBSOLETE if (pip->action == PIA_NOTE_STD && src < 32) -// OBSOLETE { -// OBSOLETE offset += 4; -// OBSOLETE must_adjust[src] = 1; -// OBSOLETE fsr->regs[src++] = offset; -// OBSOLETE } -// OBSOLETE } -// OBSOLETE else -// OBSOLETE goto end_of_prologue_found; -// OBSOLETE break; -// OBSOLETE case PIA_NOTE_SP_ADJUSTMENT: -// OBSOLETE if (sp_offset == -1) -// OBSOLETE sp_offset = -SUBU_OFFSET (insn); -// OBSOLETE else -// OBSOLETE goto end_of_prologue_found; -// OBSOLETE break; -// OBSOLETE case PIA_NOTE_FP_ASSIGNMENT: -// OBSOLETE if (fp_offset == -1) -// OBSOLETE fp_offset = ADDU_OFFSET (insn); -// OBSOLETE else -// OBSOLETE goto end_of_prologue_found; -// OBSOLETE break; -// OBSOLETE case PIA_NOTE_PROLOGUE_END: -// OBSOLETE if (!prologue_end) -// OBSOLETE prologue_end = ip; -// OBSOLETE break; -// OBSOLETE case PIA_SKIP: -// OBSOLETE default: -// OBSOLETE /* Do nothing */ -// OBSOLETE break; -// OBSOLETE } -// OBSOLETE -// OBSOLETE ip = next_ip; -// OBSOLETE next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn); -// OBSOLETE } -// OBSOLETE -// OBSOLETE end_of_prologue_found: -// OBSOLETE -// OBSOLETE if (prologue_end) -// OBSOLETE ip = prologue_end; -// OBSOLETE -// OBSOLETE /* We're done with the prologue. If we don't care about the stack -// OBSOLETE frame itself, just return. (Note that fsr->regs has been trashed, -// OBSOLETE but the one caller who calls with fi==0 passes a dummy there.) */ -// OBSOLETE -// OBSOLETE if (fi == 0) -// OBSOLETE return ip; -// OBSOLETE -// OBSOLETE /* -// OBSOLETE OK, now we have: -// OBSOLETE -// OBSOLETE sp_offset original (before any alloca calls) displacement of SP -// OBSOLETE (will be negative). -// OBSOLETE -// OBSOLETE fp_offset displacement from original SP to the FP for this frame -// OBSOLETE or -1. -// OBSOLETE -// OBSOLETE fsr->regs[0..31] displacement from original SP to the stack -// OBSOLETE location where reg[0..31] is stored. -// OBSOLETE -// OBSOLETE must_adjust[0..31] set if corresponding offset was set. -// OBSOLETE -// OBSOLETE If alloca has been called between the function prologue and the current -// OBSOLETE IP, then the current SP (frame_sp) will not be the original SP as set by -// OBSOLETE the function prologue. If the current SP is not the original SP, then the -// OBSOLETE compiler will have allocated an FP for this frame, fp_offset will be set, -// OBSOLETE and we can use it to calculate the original SP. -// OBSOLETE -// OBSOLETE Then, we figure out where the arguments and locals are, and relocate the -// OBSOLETE offsets in fsr->regs to absolute addresses. */ -// OBSOLETE -// OBSOLETE if (fp_offset != -1) -// OBSOLETE { -// OBSOLETE /* We have a frame pointer, so get it, and base our calc's on it. */ -// OBSOLETE frame_fp = (CORE_ADDR) read_next_frame_reg (fi->next, ACTUAL_FP_REGNUM); -// OBSOLETE frame_sp = frame_fp - fp_offset; -// OBSOLETE } -// OBSOLETE else -// OBSOLETE { -// OBSOLETE /* We have no frame pointer, therefore frame_sp is still the same value -// OBSOLETE as set by prologue. But where is the frame itself? */ -// OBSOLETE if (must_adjust[SRP_REGNUM]) -// OBSOLETE { -// OBSOLETE /* Function header saved SRP (r1), the return address. Frame starts -// OBSOLETE 4 bytes down from where it was saved. */ -// OBSOLETE frame_fp = frame_sp + fsr->regs[SRP_REGNUM] - 4; -// OBSOLETE fi->locals_pointer = frame_fp; -// OBSOLETE } -// OBSOLETE else -// OBSOLETE { -// OBSOLETE /* Function header didn't save SRP (r1), so we are in a leaf fn or -// OBSOLETE are otherwise confused. */ -// OBSOLETE frame_fp = -1; -// OBSOLETE } -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* The locals are relative to the FP (whether it exists as an allocated -// OBSOLETE register, or just as an assumed offset from the SP) */ -// OBSOLETE fi->locals_pointer = frame_fp; -// OBSOLETE -// OBSOLETE /* The arguments are just above the SP as it was before we adjusted it -// OBSOLETE on entry. */ -// OBSOLETE fi->args_pointer = frame_sp - sp_offset; -// OBSOLETE -// OBSOLETE /* Now that we know the SP value used by the prologue, we know where -// OBSOLETE it saved all the registers. */ -// OBSOLETE for (src = 0; src < 32; src++) -// OBSOLETE if (must_adjust[src]) -// OBSOLETE fsr->regs[src] += frame_sp; -// OBSOLETE -// OBSOLETE /* The saved value of the SP is always known. */ -// OBSOLETE /* (we hope...) */ -// OBSOLETE if (fsr->regs[SP_REGNUM] != 0 -// OBSOLETE && fsr->regs[SP_REGNUM] != frame_sp - sp_offset) -// OBSOLETE fprintf_unfiltered (gdb_stderr, "Bad saved SP value %lx != %lx, offset %x!\n", -// OBSOLETE fsr->regs[SP_REGNUM], -// OBSOLETE frame_sp - sp_offset, sp_offset); -// OBSOLETE -// OBSOLETE fsr->regs[SP_REGNUM] = frame_sp - sp_offset; -// OBSOLETE -// OBSOLETE return (ip); -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Given an ip value corresponding to the start of a function, -// OBSOLETE return the ip of the first instruction after the function -// OBSOLETE prologue. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE m88k_skip_prologue (CORE_ADDR ip) -// OBSOLETE { -// OBSOLETE struct frame_saved_regs saved_regs_dummy; -// OBSOLETE struct symtab_and_line sal; -// OBSOLETE CORE_ADDR limit; -// OBSOLETE -// OBSOLETE sal = find_pc_line (ip, 0); -// OBSOLETE limit = (sal.end) ? sal.end : 0xffffffff; -// OBSOLETE -// OBSOLETE return (examine_prologue (ip, limit, (CORE_ADDR) 0, &saved_regs_dummy, -// OBSOLETE (struct frame_info *) 0)); -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, -// OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. -// OBSOLETE This includes special registers such as pc and fp saved in special -// OBSOLETE ways in the stack frame. sp is even more special: -// OBSOLETE the address we return for it IS the sp for the next frame. -// OBSOLETE -// OBSOLETE We cache the result of doing this in the frame_obstack, since it is -// OBSOLETE fairly expensive. */ -// OBSOLETE -// OBSOLETE void -// OBSOLETE frame_find_saved_regs (struct frame_info *fi, struct frame_saved_regs *fsr) -// OBSOLETE { -// OBSOLETE register struct frame_saved_regs *cache_fsr; -// OBSOLETE CORE_ADDR ip; -// OBSOLETE struct symtab_and_line sal; -// OBSOLETE CORE_ADDR limit; -// OBSOLETE -// OBSOLETE if (!fi->fsr) -// OBSOLETE { -// OBSOLETE cache_fsr = (struct frame_saved_regs *) -// OBSOLETE frame_obstack_alloc (sizeof (struct frame_saved_regs)); -// OBSOLETE memset (cache_fsr, '\0', sizeof (struct frame_saved_regs)); -// OBSOLETE fi->fsr = cache_fsr; -// OBSOLETE -// OBSOLETE /* Find the start and end of the function prologue. If the PC -// OBSOLETE is in the function prologue, we only consider the part that -// OBSOLETE has executed already. In the case where the PC is not in -// OBSOLETE the function prologue, we set limit to two instructions beyond -// OBSOLETE where the prologue ends in case if any of the prologue instructions -// OBSOLETE were moved into a delay slot of a branch instruction. */ -// OBSOLETE -// OBSOLETE ip = get_pc_function_start (fi->pc); -// OBSOLETE sal = find_pc_line (ip, 0); -// OBSOLETE limit = (sal.end && sal.end < fi->pc) ? sal.end + 2 * BYTES_PER_88K_INSN -// OBSOLETE : fi->pc; -// OBSOLETE -// OBSOLETE /* This will fill in fields in *fi as well as in cache_fsr. */ -// OBSOLETE #ifdef SIGTRAMP_FRAME_FIXUP -// OBSOLETE if (fi->signal_handler_caller) -// OBSOLETE SIGTRAMP_FRAME_FIXUP (fi->frame); -// OBSOLETE #endif -// OBSOLETE examine_prologue (ip, limit, fi->frame, cache_fsr, fi); -// OBSOLETE #ifdef SIGTRAMP_SP_FIXUP -// OBSOLETE if (fi->signal_handler_caller && fi->fsr->regs[SP_REGNUM]) -// OBSOLETE SIGTRAMP_SP_FIXUP (fi->fsr->regs[SP_REGNUM]); -// OBSOLETE #endif -// OBSOLETE } -// OBSOLETE -// OBSOLETE if (fsr) -// OBSOLETE *fsr = *fi->fsr; -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Return the address of the locals block for the frame -// OBSOLETE described by FI. Returns 0 if the address is unknown. -// OBSOLETE NOTE! Frame locals are referred to by negative offsets from the -// OBSOLETE argument pointer, so this is the same as frame_args_address(). */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE frame_locals_address (struct frame_info *fi) -// OBSOLETE { -// OBSOLETE struct frame_saved_regs fsr; -// OBSOLETE -// OBSOLETE if (fi->args_pointer) /* Cached value is likely there. */ -// OBSOLETE return fi->args_pointer; -// OBSOLETE -// OBSOLETE /* Nope, generate it. */ -// OBSOLETE -// OBSOLETE get_frame_saved_regs (fi, &fsr); -// OBSOLETE -// OBSOLETE return fi->args_pointer; -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Return the address of the argument block for the frame -// OBSOLETE described by FI. Returns 0 if the address is unknown. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE frame_args_address (struct frame_info *fi) -// OBSOLETE { -// OBSOLETE struct frame_saved_regs fsr; -// OBSOLETE -// OBSOLETE if (fi->args_pointer) /* Cached value is likely there. */ -// OBSOLETE return fi->args_pointer; -// OBSOLETE -// OBSOLETE /* Nope, generate it. */ -// OBSOLETE -// OBSOLETE get_frame_saved_regs (fi, &fsr); -// OBSOLETE -// OBSOLETE return fi->args_pointer; -// OBSOLETE } -// OBSOLETE -// OBSOLETE /* Return the saved PC from this frame. -// OBSOLETE -// OBSOLETE If the frame has a memory copy of SRP_REGNUM, use that. If not, -// OBSOLETE just use the register SRP_REGNUM itself. */ -// OBSOLETE -// OBSOLETE CORE_ADDR -// OBSOLETE frame_saved_pc (struct frame_info *frame) -// OBSOLETE { -// OBSOLETE return read_next_frame_reg (frame, SRP_REGNUM); -// OBSOLETE } -// OBSOLETE -// OBSOLETE -// OBSOLETE #define DUMMY_FRAME_SIZE 192 -// OBSOLETE -// OBSOLETE static void -// OBSOLETE write_word (CORE_ADDR sp, ULONGEST word) -// OBSOLETE { -// OBSOLETE register int len = REGISTER_SIZE; -// OBSOLETE char buffer[MAX_REGISTER_RAW_SIZE]; -// OBSOLETE -// OBSOLETE store_unsigned_integer (buffer, len, word); -// OBSOLETE write_memory (sp, buffer, len); -// OBSOLETE } -// OBSOLETE -// OBSOLETE void -// OBSOLETE m88k_push_dummy_frame (void) -// OBSOLETE { -// OBSOLETE register CORE_ADDR sp = read_register (SP_REGNUM); -// OBSOLETE register int rn; -// OBSOLETE int offset; -// OBSOLETE -// OBSOLETE sp -= DUMMY_FRAME_SIZE; /* allocate a bunch of space */ -// OBSOLETE -// OBSOLETE for (rn = 0, offset = 0; rn <= SP_REGNUM; rn++, offset += 4) -// OBSOLETE write_word (sp + offset, read_register (rn)); -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (SXIP_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (SNIP_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (SFIP_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (PSR_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (FPSR_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_word (sp + offset, read_register (FPCR_REGNUM)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (SP_REGNUM, sp); -// OBSOLETE write_register (ACTUAL_FP_REGNUM, sp); -// OBSOLETE } -// OBSOLETE -// OBSOLETE void -// OBSOLETE pop_frame (void) -// OBSOLETE { -// OBSOLETE register struct frame_info *frame = get_current_frame (); -// OBSOLETE register int regnum; -// OBSOLETE struct frame_saved_regs fsr; -// OBSOLETE -// OBSOLETE get_frame_saved_regs (frame, &fsr); -// OBSOLETE -// OBSOLETE if (PC_IN_CALL_DUMMY (read_pc (), read_register (SP_REGNUM), frame->frame)) -// OBSOLETE { -// OBSOLETE /* FIXME: I think get_frame_saved_regs should be handling this so -// OBSOLETE that we can deal with the saved registers properly (e.g. frame -// OBSOLETE 1 is a call dummy, the user types "frame 2" and then "print $ps"). */ -// OBSOLETE register CORE_ADDR sp = read_register (ACTUAL_FP_REGNUM); -// OBSOLETE int offset; -// OBSOLETE -// OBSOLETE for (regnum = 0, offset = 0; regnum <= SP_REGNUM; regnum++, offset += 4) -// OBSOLETE (void) write_register (regnum, read_memory_integer (sp + offset, 4)); -// OBSOLETE -// OBSOLETE write_register (SXIP_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (SNIP_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (SFIP_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (PSR_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (FPSR_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE write_register (FPCR_REGNUM, read_memory_integer (sp + offset, 4)); -// OBSOLETE offset += 4; -// OBSOLETE -// OBSOLETE } -// OBSOLETE else -// OBSOLETE { -// OBSOLETE for (regnum = FP_REGNUM; regnum > 0; regnum--) -// OBSOLETE if (fsr.regs[regnum]) -// OBSOLETE write_register (regnum, -// OBSOLETE read_memory_integer (fsr.regs[regnum], 4)); -// OBSOLETE write_pc (frame_saved_pc (frame)); -// OBSOLETE } -// OBSOLETE reinit_frame_cache (); -// OBSOLETE } -// OBSOLETE -// OBSOLETE void -// OBSOLETE _initialize_m88k_tdep (void) -// OBSOLETE { -// OBSOLETE tm_print_insn = print_insn_m88k; -// OBSOLETE } |