import gdb-1999-07-07 post reformat
This commit is contained in:
Jason Molenda
parent
3a4b77d8be
commit
c5aa993b1f
643 changed files with 69889 additions and 65773 deletions
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@ -3,23 +3,24 @@
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Free Software Foundation, Inc.
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Contributed by IBM Corporation.
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This file is part of GDB.
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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 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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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, Boston, MA 02111-1307, USA. */
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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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#ifdef __STDC__ /* Forward decls for prototypes */
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#ifdef __STDC__ /* Forward decls for prototypes */
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struct frame_info;
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struct type;
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struct value;
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@ -52,33 +53,36 @@ extern int inferior_pid;
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/* We are missing register descriptions in the system header files. Sigh! */
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struct regs {
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int gregs [32]; /* general purpose registers */
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int pc; /* program conter */
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int ps; /* processor status, or machine state */
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};
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struct regs
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{
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int gregs[32]; /* general purpose registers */
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int pc; /* program conter */
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int ps; /* processor status, or machine state */
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};
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struct fp_status {
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double fpregs [32]; /* floating GP registers */
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};
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struct fp_status
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{
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double fpregs[32]; /* floating GP registers */
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};
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/* To be used by skip_prologue. */
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struct rs6000_framedata {
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int offset; /* total size of frame --- the distance
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by which we decrement sp to allocate
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the frame */
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int saved_gpr; /* smallest # of saved gpr */
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int saved_fpr; /* smallest # of saved fpr */
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int alloca_reg; /* alloca register number (frame ptr) */
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char frameless; /* true if frameless functions. */
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char nosavedpc; /* true if pc not saved. */
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int gpr_offset; /* offset of saved gprs from prev sp */
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int fpr_offset; /* offset of saved fprs from prev sp */
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int lr_offset; /* offset of saved lr */
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int cr_offset; /* offset of saved cr */
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};
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struct rs6000_framedata
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{
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int offset; /* total size of frame --- the distance
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by which we decrement sp to allocate
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the frame */
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int saved_gpr; /* smallest # of saved gpr */
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int saved_fpr; /* smallest # of saved fpr */
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int alloca_reg; /* alloca register number (frame ptr) */
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char frameless; /* true if frameless functions. */
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char nosavedpc; /* true if pc not saved. */
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int gpr_offset; /* offset of saved gprs from prev sp */
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int fpr_offset; /* offset of saved fprs from prev sp */
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int lr_offset; /* offset of saved lr */
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int cr_offset; /* offset of saved cr */
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};
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/* Define the byte order of the machine. */
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@ -100,7 +104,7 @@ struct rs6000_framedata {
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extern CORE_ADDR rs6000_skip_prologue PARAMS ((CORE_ADDR));
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#define SKIP_PROLOGUE(pc) (rs6000_skip_prologue (pc))
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extern CORE_ADDR skip_prologue PARAMS((CORE_ADDR, struct rs6000_framedata *));
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extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR, struct rs6000_framedata *));
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/* If PC is in some function-call trampoline code, return the PC
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@ -134,7 +138,7 @@ extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR));
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#define PROCESS_LINENUMBER_HOOK() aix_process_linenos ()
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extern void aix_process_linenos PARAMS ((void));
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/* Immediately after a function call, return the saved pc.
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Can't go through the frames for this because on some machines
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the new frame is not set up until the new function executes
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@ -198,13 +202,13 @@ extern char *rs6000_register_name (int reg);
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#define FP0_REGNUM 32 /* Floating point register 0 */
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#define GP0_REGNUM 0 /* GPR register 0 */
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#define FP0_REGNUM 32 /* FPR (Floating point) register 0 */
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#define FPLAST_REGNUM 63 /* Last floating point register */
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#define FPLAST_REGNUM 63 /* Last floating point register */
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/* Special purpose registers... */
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/* P.S. keep these in the same order as in /usr/mstsave.h `mstsave'
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structure, for easier processing */
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#define PC_REGNUM 64 /* Program counter (instruction address %iar)*/
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#define PC_REGNUM 64 /* Program counter (instruction address %iar) */
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#define PS_REGNUM 65 /* Processor (or machine) status (%msr) */
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#define CR_REGNUM 66 /* Condition register */
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#define LR_REGNUM 67 /* Link register */
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@ -223,11 +227,11 @@ extern char *rs6000_register_name (int reg);
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/* Total amount of space needed to store our copies of the machine's
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register state, the array `registers'.
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32 4-byte gpr's
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32 8-byte fpr's
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7 4-byte UISA special purpose registers,
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16 4-byte segment registers,
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32 4-byte standard OEA special-purpose registers,
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32 4-byte gpr's
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32 8-byte fpr's
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7 4-byte UISA special purpose registers,
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16 4-byte segment registers,
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32 4-byte standard OEA special-purpose registers,
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and up to 64 4-byte non-standard OEA special purpose regs.
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total: (+ (* 32 4) (* 32 8) (* 7 4) (* 16 4) (* 32 4) (* 64 4)) 860 bytes
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Keep some extra space for now, in case to add more. */
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@ -327,11 +331,11 @@ extern CORE_ADDR rs6000_struct_return_address;
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into VALBUF. */
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/* #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
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memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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extract_return_value(TYPE,REGBUF,VALBUF)
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extern void extract_return_value PARAMS ((struct type *, char [], char *));
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extern void extract_return_value PARAMS ((struct type *, char[], char *));
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/* Write into appropriate registers a function return value
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of type TYPE, given in virtual format. */
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@ -380,12 +384,12 @@ CORE_ADDR rs6000_frame_chain PARAMS ((struct frame_info *));
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#define FRAMELESS_FUNCTION_INVOCATION(FI) \
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(frameless_function_invocation (FI))
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extern int frameless_function_invocation PARAMS((struct frame_info *));
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extern int frameless_function_invocation PARAMS ((struct frame_info *));
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#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
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prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
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prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
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#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
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#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
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extern void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) rs6000_init_extra_frame_info (fromleaf, fi)
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@ -454,39 +458,39 @@ extern void pop_frame PARAMS ((void));
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/* This sequence of words is the instructions:
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mflr r0 // 0x7c0802a6
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// save fpr's
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stfd r?, num(r1) // 0xd8010000 there should be 32 of this??
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// save gpr's
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stm r0, num(r1) // 0xbc010000
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stu r1, num(r1) // 0x94210000
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mflr r0 // 0x7c0802a6
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// save fpr's
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stfd r?, num(r1) // 0xd8010000 there should be 32 of this??
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// save gpr's
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stm r0, num(r1) // 0xbc010000
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stu r1, num(r1) // 0x94210000
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// the function we want to branch might be in a different load
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// segment. reset the toc register. Note that the actual toc address
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// will be fix by fix_call_dummy () along with function address.
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// the function we want to branch might be in a different load
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// segment. reset the toc register. Note that the actual toc address
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// will be fix by fix_call_dummy () along with function address.
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st r2, 0x14(r1) // 0x90410014 save toc register
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liu r2, 0x1234 // 0x3c401234 reset a new toc value 0x12345678
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oril r2, r2,0x5678 // 0x60425678
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st r2, 0x14(r1) // 0x90410014 save toc register
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liu r2, 0x1234 // 0x3c401234 reset a new toc value 0x12345678
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oril r2, r2,0x5678 // 0x60425678
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// load absolute address 0x12345678 to r0
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liu r0, 0x1234 // 0x3c001234
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oril r0, r0,0x5678 // 0x60005678
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mtctr r0 // 0x7c0903a6 ctr <- r0
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bctrl // 0x4e800421 jump subroutine 0x12345678 (%ctr)
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cror 0xf, 0xf, 0xf // 0x4def7b82
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brpt // 0x7d821008, breakpoint
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cror 0xf, 0xf, 0xf // 0x4def7b82 (for 8 byte alignment)
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// load absolute address 0x12345678 to r0
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liu r0, 0x1234 // 0x3c001234
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oril r0, r0,0x5678 // 0x60005678
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mtctr r0 // 0x7c0903a6 ctr <- r0
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bctrl // 0x4e800421 jump subroutine 0x12345678 (%ctr)
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cror 0xf, 0xf, 0xf // 0x4def7b82
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brpt // 0x7d821008, breakpoint
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cror 0xf, 0xf, 0xf // 0x4def7b82 (for 8 byte alignment)
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We actually start executing by saving the toc register first, since the pushing
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of the registers is done by PUSH_DUMMY_FRAME. If this were real code,
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the arguments for the function called by the `bctrl' would be pushed
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between the `stu' and the `bctrl', and we could allow it to execute through.
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But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
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and we cannot allow to push the registers again.
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*/
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We actually start executing by saving the toc register first, since the pushing
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of the registers is done by PUSH_DUMMY_FRAME. If this were real code,
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the arguments for the function called by the `bctrl' would be pushed
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between the `stu' and the `bctrl', and we could allow it to execute through.
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But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
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and we cannot allow to push the registers again.
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*/
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#define CALL_DUMMY {0x7c0802a6, 0xd8010000, 0xbc010000, 0x94210000, \
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0x90410014, 0x3c401234, 0x60425678, \
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0x3c001234, 0x60005678, 0x7c0903a6, 0x4e800421, \
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@ -509,16 +513,17 @@ extern void rs6000_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR,
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/* Hook in rs6000-tdep.c for determining the TOC address when
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calling functions in the inferior. */
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extern CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
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extern
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CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
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/* xcoffread.c provides a function to determine the TOC offset
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for a given object file.
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It is used under native AIX configurations for determining the
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TOC address when calling functions in the inferior. */
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#ifdef __STDC__
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struct objfile;
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struct objfile;
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#endif
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extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
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extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
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/* Usually a function pointer's representation is simply the address
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of the function. On the RS/6000 however, a function pointer is
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@ -536,7 +541,7 @@ extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
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#define CONVERT_FROM_FUNC_PTR_ADDR(ADDR) \
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(is_magic_function_pointer (ADDR) ? read_memory_integer (ADDR, 4) : (ADDR))
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extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
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extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
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/* Flag for machine-specific stuff in shared files. FIXME */
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#define IBM6000_TARGET
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@ -544,7 +549,7 @@ extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
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/* RS6000/AIX does not support PT_STEP. Has to be simulated. */
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#define SOFTWARE_SINGLE_STEP_P 1
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extern void rs6000_software_single_step PARAMS ((unsigned int, int));
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extern void rs6000_software_single_step PARAMS ((unsigned int, int));
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#define SOFTWARE_SINGLE_STEP(sig,bp_p) rs6000_software_single_step (sig, bp_p)
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/* If the current gcc for for this target does not produce correct debugging
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