See the huge ChangeLog entry that has the header:
Thu Jul 25 19:41:31 1996 Fred Fish <fnf@cygnus.com> for details about these changes. I was going to include the complete entry in the checkin message but it was apparently so large it caused cvs to dump core.
This commit is contained in:
Fred Fish
parent
b607efe714
commit
ed393c169b
17 changed files with 110 additions and 72 deletions
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@ -1,5 +1,6 @@
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/* Definitions to make GDB run on an Alpha box under OSF1.
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Copyright 1993 Free Software Foundation, Inc.
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/* Definitions to make GDB run on an Alpha box under OSF1. This is
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also used by the Alpha/Netware and Alpha/Linux targets.
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Copyright 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
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This file is part of GDB.
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@ -15,7 +16,10 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef TM_ALPHA_H
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#define TM_ALPHA_H
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#include "bfd.h"
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#include "coff/sym.h" /* Needed for PDR below. */
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@ -77,21 +81,20 @@ alpha_saved_pc_after_call PARAMS ((struct frame_info *));
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This is often the number of bytes in BREAKPOINT
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but not always. */
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#ifndef DECR_PC_AFTER_BREAK
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#define DECR_PC_AFTER_BREAK 4
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#endif
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/* Nonzero if instruction at PC is a return instruction.
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"ret $zero,($ra),1" on alpha. */
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#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0x6bfa8001)
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/* Return 1 if P points to an invalid floating point value. */
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/* Say how long (ordinary) registers are. This is a piece of bogosity
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used in push_word and a few other places; REGISTER_RAW_SIZE is the
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real way to know how big a register is. */
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#define INVALID_FLOAT(p,l) 0
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/* Say how long (all) registers are.
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This is unused for the alpha, but the define is necessary. */
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#define REGISTER_TYPE long
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#define REGISTER_SIZE 8
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/* Number of machine registers */
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@ -120,8 +123,10 @@ alpha_saved_pc_after_call PARAMS ((struct frame_info *));
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but serves to get the desired value when passed to read_register. */
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#define V0_REGNUM 0 /* Function integer return value */
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#define T7_REGNUM 8 /* Return address register for OSF/1 __add* */
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#define GCC_FP_REGNUM 15 /* Used by gcc as frame register */
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#define A0_REGNUM 16 /* Loc of first arg during a subr call */
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#define T9_REGNUM 23 /* Return address register for OSF/1 __div* */
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#define T12_REGNUM 27 /* Contains start addr of current proc */
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#define SP_REGNUM 30 /* Contains address of top of stack */
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#define RA_REGNUM 26 /* Contains return address value */
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@ -244,9 +249,8 @@ alpha_store_return_value PARAMS ((struct type *, char *));
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/* FRAME_CHAIN takes a frame's nominal address
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and produces the frame's chain-pointer. */
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#define FRAME_CHAIN(thisframe) (FRAME_ADDR)alpha_frame_chain(thisframe)
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extern CORE_ADDR
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alpha_frame_chain PARAMS ((struct frame_info *));
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#define FRAME_CHAIN(thisframe) (CORE_ADDR) alpha_frame_chain (thisframe)
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extern CORE_ADDR alpha_frame_chain PARAMS ((struct frame_info *));
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/* Define other aspects of the stack frame. */
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@ -298,9 +302,15 @@ alpha_frame_saved_pc PARAMS ((struct frame_info *));
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ways in the stack frame. sp is even more special:
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the address we return for it IS the sp for the next frame. */
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#define FRAME_FIND_SAVED_REGS(fi, frame_saved_regs) ( \
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(frame_saved_regs) = *(fi)->saved_regs, \
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(frame_saved_regs).regs[SP_REGNUM] = (fi)->frame)
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extern void alpha_find_saved_regs PARAMS ((struct frame_info *));
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#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
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do { \
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if ((frame_info)->saved_regs == NULL) \
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alpha_find_saved_regs (frame_info); \
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(frame_saved_regs) = *(frame_info)->saved_regs; \
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(frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame; \
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} while (0)
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/* Things needed for making the inferior call functions. */
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@ -332,18 +342,21 @@ alpha_pop_frame PARAMS ((void));
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#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
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/* We need a fake CALL_DUMMY definition to enable the proper
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/* On the Alpha the call dummy code is never copied to user space,
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stopping the user call is achieved via a bp_call_dummy breakpoint.
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But we need a fake CALL_DUMMY definition to enable the proper
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call_function_by_hand and to avoid zero length array warnings
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in valops.c */
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#define CALL_DUMMY {\
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0x80, /* call_pal bpt */ \
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}
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#define CALL_DUMMY { 0 } /* Content doesn't matter. */
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#define CALL_DUMMY_START_OFFSET (0)
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#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
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extern CORE_ADDR alpha_call_dummy_address PARAMS ((void));
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#define CALL_DUMMY_ADDRESS() alpha_call_dummy_address()
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/* Insert the specified number of args and function address
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into a call sequence of the above form stored at DUMMYNAME.
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We only have to set RA_REGNUM to the dummy breakpoint address
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@ -351,7 +364,7 @@ alpha_pop_frame PARAMS ((void));
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#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
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{ \
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CORE_ADDR bp_address = entry_point_address (); \
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CORE_ADDR bp_address = CALL_DUMMY_ADDRESS (); \
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if (bp_address == 0) \
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error ("no place to put call"); \
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write_register (RA_REGNUM, bp_address); \
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@ -390,6 +403,7 @@ typedef struct alpha_extra_func_info {
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#define EXTRA_FRAME_INFO \
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int localoff; \
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int pc_reg; \
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alpha_extra_func_info_t proc_desc; \
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struct frame_saved_regs *saved_regs;
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@ -416,6 +430,58 @@ init_extra_frame_info PARAMS ((struct frame_info *));
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multiple functions with the same SP that are at different stack levels. */
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#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
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/* FIXME: Depends on equivalence between FRAME and "struct frame_info *",
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and equivalence between CORE_ADDR and FRAME_ADDR. */
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extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
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/* This is used by heuristic_proc_start. It should be shot it the head. */
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#ifndef VM_MIN_ADDRESS
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#define VM_MIN_ADDRESS (CORE_ADDR)0x120000000
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#endif
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/* If PC is in a shared library trampoline code, return the PC
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where the function itself actually starts. If not, return 0. */
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#define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc)
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/* If the current gcc for for this target does not produce correct debugging
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information for float parameters, both prototyped and unprototyped, then
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define this macro. This forces gdb to always assume that floats are
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passed as doubles and then converted in the callee.
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For the alpha, it appears that the debug info marks the parameters as
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floats regardless of whether the function is prototyped, but the actual
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values are always passed in as doubles. Thus by setting this to 1, both
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types of calls will work. */
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#define COERCE_FLOAT_TO_DOUBLE 1
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/* Return TRUE if procedure descriptor PROC is a procedure descriptor
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that refers to a dynamically generated sigtramp function.
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OSF/1 doesn't use dynamic sigtramp functions, so this is always
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FALSE. */
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#define PROC_DESC_IS_DYN_SIGTRAMP(proc) (0)
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#define SET_PROC_DESC_IS_DYN_SIGTRAMP(proc)
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/* If PC is inside a dynamically generated sigtramp function, return
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how many bytes the program counter is beyond the start of that
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function. Otherwise, return a negative value.
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OSF/1 doesn't use dynamic sigtramp functions, so this always
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returns -1. */
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#define DYNAMIC_SIGTRAMP_OFFSET(pc) (-1)
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/* Translate a signal handler frame into the address of the sigcontext
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structure. */
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#define SIGCONTEXT_ADDR(frame) \
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(read_memory_integer ((frame)->next ? frame->next->frame : frame->frame, 8))
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/* If FRAME refers to a sigtramp frame, return the address of the next
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frame. */
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#define FRAME_PAST_SIGTRAMP_FRAME(frame, pc) \
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(alpha_osf_skip_sigtramp_frame (frame, pc))
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extern CORE_ADDR alpha_osf_skip_sigtramp_frame PARAMS ((struct frame_info *, CORE_ADDR));
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#endif /* TM_ALPHA_H */
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@ -25,7 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Are we currently handling a signal ? */
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extern long alpha_linux_sigtramp_offset ();
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extern long alpha_linux_sigtramp_offset PARAMS ((CORE_ADDR);
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#undef IN_SIGTRAMP
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#define IN_SIGTRAMP(pc, name) (alpha_linux_sigtramp_offset (pc) >= 0)
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@ -60,8 +60,6 @@ extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR, int));
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/* We don't have a reliable single step facility.
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??? We do have a cycle single step facility, but that won't work. */
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#define NO_SINGLE_STEP
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extern int one_stepped;
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extern void single_step PARAMS ((int));
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/* Given a pc value as defined by the hardware, return the real address.
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Remember that on the ARC blink contains that status register which
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@ -19,5 +19,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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#include <machine/limits.h> /* for INT_MIN, to avoid "INT_MIN
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redefined" warnings from defs.h */
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#include <machine/limits.h> /* for INT_MIN */
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@ -19,11 +19,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* Do implement the attach and detach commands. */
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#define ATTACH_DETACH 1
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@ -19,11 +19,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* This is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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@ -44,9 +44,11 @@ extern CORE_ADDR m68k_skip_prologue PARAMS ((CORE_ADDR ip));
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#ifdef __STDC__
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struct frame_info;
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struct frame_saved_regs;
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#endif
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extern CORE_ADDR m68k_saved_pc_after_call PARAMS ((struct frame_info *));
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extern void m68k_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *));
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#define SAVED_PC_AFTER_CALL(frame) \
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m68k_saved_pc_after_call(frame)
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@ -25,8 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER BIG_ENDIAN
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/* Avoid "INT_MIN redefined" preprocessor warnings by defining them here. */
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#include <sys/param.h>
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#include <sys/param.h> /* For INT_MIN */
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/* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */
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#define ONE_PROCESS_WRITETEXT
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@ -19,9 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER BIG_ENDIAN
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/* A News 1800 running NEWS-OS Release 4.0.1C is said to need this. */
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/* Avoid "INT_MIN redefined" preprocessor warnings by defining them here. */
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#include <sys/param.h>
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#include <sys/param.h> /* For INT_MIN */
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#define HAVE_WAIT_STRUCT
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@ -19,10 +19,5 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* Do implement the attach and detach commands. */
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#define ATTACH_DETACH 1
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@ -26,11 +26,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "pa/xm-pa.h"
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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#ifndef SEEK_SET
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# define SEEK_SET 0 /* Set file pointer to "offset" */
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# define SEEK_CUR 1 /* Set file pointer to current plus "offset" */
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@ -25,11 +25,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "pa/xm-pa.h"
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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#define USG
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#ifndef __STDC__
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@ -336,6 +336,10 @@ sparc_extract_struct_value_address PARAMS ((char [REGISTER_BYTES]));
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have been stashed (the frame is of variable size, so their location
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is not fixed), it's convenient to record them in the frame info. */
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#ifdef __STDC__
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struct frame_info;
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#endif
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#define EXTRA_FRAME_INFO \
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CORE_ADDR bottom; \
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int flat; \
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@ -348,7 +352,7 @@ sparc_extract_struct_value_address PARAMS ((char [REGISTER_BYTES]));
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \
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sparc_init_extra_frame_info (fromleaf, fci)
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extern void sparc_init_extra_frame_info ();
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extern void sparc_init_extra_frame_info PARAMS((int, struct frame_info *));
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#define PRINT_EXTRA_FRAME_INFO(fi) \
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{ \
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@ -357,10 +361,6 @@ extern void sparc_init_extra_frame_info ();
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(fi)->pc_addr, (fi)->fp_addr); \
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}
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#ifdef __STDC__
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struct frame_info;
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#endif
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#define FRAME_CHAIN(thisframe) (sparc_frame_chain (thisframe))
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extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *));
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@ -390,7 +390,7 @@ extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *));
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/* Where is the PC for a specific frame */
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#define FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME)
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extern CORE_ADDR sparc_frame_saved_pc ();
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extern CORE_ADDR sparc_frame_saved_pc PARAMS ((struct frame_info *));
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/* If the argument is on the stack, it will be here. */
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#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
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@ -478,7 +478,7 @@ extern CORE_ADDR sparc_frame_saved_pc ();
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#define PUSH_DUMMY_FRAME sparc_push_dummy_frame ()
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#define POP_FRAME sparc_pop_frame ()
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void sparc_push_dummy_frame (), sparc_pop_frame ();
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void sparc_push_dummy_frame PARAMS ((void)), sparc_pop_frame PARAMS ((void));
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/* This sequence of words is the instructions
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save %sp,-0x140,%sp
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@ -598,7 +598,6 @@ arguments. */
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/* Sparc has no reliable single step ptrace call */
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#define NO_SINGLE_STEP 1
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extern void single_step PARAMS ((int));
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/* We need more arguments in a frame specification for the
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"frame" or "info frame" command. */
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@ -27,7 +27,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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(e.g. on Irix5). */
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#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name))
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extern int in_plt_section PARAMS ((CORE_ADDR, char *));
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/* If PC is in a shared library trampoline code, return the PC
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||||
where the function itself actually starts. If not, return 0. */
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@ -17,6 +17,4 @@ You should have received a copy of the GNU General Public License
|
|||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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||||
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/* for INT_MIN, to avoid "INT_MIN redefined" warnings from defs.h */
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|
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#include <limits.h>
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#include <limits.h> /* for INT_MIN */
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|
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@ -1,3 +1,8 @@
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Tue Jul 23 10:06:20 1996 Fred Fish <fnf@cygnus.com>
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* gdbint.texinfo (NO_SINGLE_STEP): Document that single_step takes
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a target_signal as arg type, not a pid.
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Fri Jul 12 11:10:05 1996 Stu Grossman (grossman@critters.cygnus.com)
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* gdb.texinfo: Document `set assembly-language'.
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@ -2197,7 +2197,7 @@ remote-adapt.c
|
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@item NO_SINGLE_STEP
|
||||
Define this if the target does not support single-stepping.
|
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If this is defined, you must supply, in @code{*-tdep.c}, the function
|
||||
@code{single_step}, which takes a pid as argument and returns nothing.
|
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@code{single_step}, which takes a target_signal as argument and returns nothing.
|
||||
It must insert breakpoints at each possible destinations of the next
|
||||
instruction. See @code{sparc-tdep.c} and @code{rs6000-tdep.c}
|
||||
for examples.
|
||||
|
|
|
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Reference in a new issue