* config/mips/tm-irix3.h: Clean up, use tm-bigmips.h and redefine
the necessary bits.
* findvar.c (value_from_register): Fix uninitialized first_addr
which caused problems with assignment of doubles to register variables
on some targets.
* mipsread.c: Remove TM_FILE_OVERRIDE, include tm.h and provide the
missing mips definitions if necessary.
Fix handling of double register variables for mips targets and big
endian hosts. These patches are from Paul Flinders <ptf@delcam.co.uk>.
* config/mips/tm-mips.h: Increase MAX_REGISTER_{RAW,VIRTUAL}_SIZE to
8 bytes for doubles.
* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE): New macro for
conversion of type held in multiple registers to host format.
* config/mips/tm-mips.h (REGISTER_CONVERT_FROM_TYPE): New macro,
companion to REGISTER_CONVERT_TO_TYPE.
* config/mips/tm-mips.h (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE):
Convert to function calls.
* config/mips/tm-mips.h (FIX_CALL_DUMMY): New code for big endian
mips targets.
* mips-tdep.c (mips_print_register): Raw buffer now needs just
MAX_REGISTER_RAW_SIZE bytes.
* mips-tdep.c (mips_print_register): Use REGISTER_CONVERT_TO_TYPE
(if defined) for doubles.
* mips-tdep.c: (mips_extract_return_value, mips_store_return_value):
New functions, take care of REGISTER_CONVERT_TO/FROM_TYPE.
* valops.c (value_assign): Use REGISTER_CONVERT_TO_TYPE if
defined.
* findvar.c (value_from_register): Use REGISTER_CONVERT_TO_TYPE if
defined.
This commit is contained in:
Peter Schauer
parent
43152fe57b
commit
ac8cf67dca
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@ -1,3 +1,36 @@
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Sat May 22 00:21:41 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
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* config/mips/tm-irix3.h: Clean up, use tm-bigmips.h and redefine
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the necessary bits.
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* findvar.c (value_from_register): Fix uninitialized first_addr
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which caused problems with assignment of doubles to register variables
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on some targets.
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* mipsread.c: Remove TM_FILE_OVERRIDE, include tm.h and provide the
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missing mips definitions if necessary.
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Fix handling of double register variables for mips targets and big
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endian hosts. These patches are from Paul Flinders <ptf@delcam.co.uk>.
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* config/mips/tm-mips.h: Increase MAX_REGISTER_{RAW,VIRTUAL}_SIZE to
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8 bytes for doubles.
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* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE): New macro for
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conversion of type held in multiple registers to host format.
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* config/mips/tm-mips.h (REGISTER_CONVERT_FROM_TYPE): New macro,
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companion to REGISTER_CONVERT_TO_TYPE.
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* config/mips/tm-mips.h (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE):
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Convert to function calls.
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* config/mips/tm-mips.h (FIX_CALL_DUMMY): New code for big endian
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mips targets.
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* mips-tdep.c (mips_print_register): Raw buffer now needs just
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MAX_REGISTER_RAW_SIZE bytes.
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* mips-tdep.c (mips_print_register): Use REGISTER_CONVERT_TO_TYPE
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(if defined) for doubles.
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* mips-tdep.c: (mips_extract_return_value, mips_store_return_value):
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New functions, take care of REGISTER_CONVERT_TO/FROM_TYPE.
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* valops.c (value_assign): Use REGISTER_CONVERT_TO_TYPE if
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defined.
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* findvar.c (value_from_register): Use REGISTER_CONVERT_TO_TYPE if
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defined.
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Fri May 21 09:04:25 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* configure.in: Add i[34]86-*-isc*.
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@ -17,67 +17,24 @@ 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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#include "coff/sym.h" /* Needed for PDR below. */
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#include "coff/symconst.h"
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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/* Floating point is IEEE compliant */
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#define IEEE_FLOAT
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#include "mips/tm-bigmips.h"
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/* SGI's assembler doesn't grok dollar signs in identifiers.
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So we use dots instead. This item must be coordinated with G++. */
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#undef CPLUS_MARKER
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#define CPLUS_MARKER '.'
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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/* Redefine register numbers for SGI. */
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#define FUNCTION_START_OFFSET 0
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/* Advance PC across any function entry prologue instructions
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to reach some "real" code. */
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#define SKIP_PROLOGUE(pc) pc = mips_skip_prologue(pc)
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/* Immediately after a function call, return the saved pc.
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Can't always 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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some instructions. */
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#define SAVED_PC_AFTER_CALL(frame) read_register(RA_REGNUM)
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/* Are we currently handling a signal */
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#define IN_SIGTRAMP(pc, name) in_sigtramp(pc, name)
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/* Address of end of stack space. */
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#define STACK_END_ADDR (0x7ffff000)
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/* Stack grows downward. */
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#define INNER_THAN <
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#define BREAKPOINT {0, 0x5, 0, 0xd}
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/* Amount PC must be decremented by after a breakpoint.
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This is often the number of bytes in BREAKPOINT
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but not always. */
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#define DECR_PC_AFTER_BREAK 0
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/* Nonzero if instruction at PC is a return instruction. "j ra" on mips. */
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#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0x3e00008)
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/* Return 1 if P points to an invalid floating point value. */
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#define INVALID_FLOAT(p,l) isa_NAN(p,l)
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/* Say how long (all) registers are. */
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#define REGISTER_TYPE long
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#undef NUM_REGS
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#undef REGISTER_NAMES
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#undef FP0_REGNUM
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#undef PC_REGNUM
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#undef PS_REGNUM
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#undef HI_REGNUM
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#undef LO_REGNUM
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#undef FCRCS_REGNUM
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#undef FCRIR_REGNUM
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/* Number of machine registers */
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@ -105,11 +62,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#define ZERO_REGNUM 0 /* read-only register, always 0 */
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#define A0_REGNUM 4 /* Loc of first arg during a subr call */
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#define SP_REGNUM 29 /* Contains address of top of stack */
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#define FP_REGNUM 30 /* Pseudo register that contains true address of executing stack frame */
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#define RA_REGNUM 31 /* Contains return address value */
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#define FP0_REGNUM 32 /* Floating point register 0 (single float) */
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#define PC_REGNUM 64 /* Contains program counter */
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#define PS_REGNUM 65 /* Contains processor status */
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@ -117,205 +69,3 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define LO_REGNUM 68 /* ... */
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#define FCRCS_REGNUM 69 /* FP control/status */
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#define FCRIR_REGNUM 70 /* FP implementation/revision */
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/* Define DO_REGISTERS_INFO() to do machine-specific formatting
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of register dumps. */
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#define DO_REGISTERS_INFO(_regnum, fp) mips_do_registers_info(_regnum, fp)
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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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#define REGISTER_BYTES (NUM_REGS*4)
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) ((N) * 4)
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/* Number of bytes of storage in the actual machine representation
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for register N. On mips, all regs are 4 bytes. */
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#define REGISTER_RAW_SIZE(N) 4
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/* Number of bytes of storage in the program's representation
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for register N. On mips, all regs are 4 bytes. */
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#define REGISTER_VIRTUAL_SIZE(N) 4
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/* Largest value REGISTER_RAW_SIZE can have. */
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#define MAX_REGISTER_RAW_SIZE 4
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE 4
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#define REGISTER_CONVERTIBLE(N) 0
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/* Convert data from raw format for register REGNUM
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to virtual format for register REGNUM. */
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
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bcopy ((FROM), (TO), 4);
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/* Convert data from virtual format for register REGNUM
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to raw format for register REGNUM. */
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#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
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bcopy ((FROM), (TO), 4);
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
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/* Store the address of the place in which to copy the structure the
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subroutine will return. This is called from call_function. */
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#define STORE_STRUCT_RETURN(addr, sp) \
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{ sp = push_word(sp, addr);}
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/* Extract from an array REGBUF containing the (raw) register state
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a function return value of type TYPE, and copy that, in virtual format,
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into VALBUF. XXX floats */
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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bcopy (REGBUF+REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
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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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#define STORE_RETURN_VALUE(TYPE,VALBUF) \
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write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
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/* Extract from an array REGBUF containing the (raw) register state
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the address in which a function should return its structure value,
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as a CORE_ADDR (or an expression that can be used as one). */
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#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF+16))
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/* Structures are returned by ref in extra arg0 */
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#define USE_STRUCT_CONVENTION(gcc_p, type) 1
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/* Describe the pointer in each stack frame to the previous stack frame
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(its caller). */
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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)mips_frame_chain(thisframe)
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/* Define other aspects of the stack frame. */
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/* A macro that tells us whether the function invocation represented
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by FI does not have a frame on the stack associated with it. If it
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does not, FRAMELESS is set to 1, else 0. */
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/* We handle this differently for mips, and maybe we should not */
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#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) {(FRAMELESS) = 0;}
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/* Saved Pc. */
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#define FRAME_SAVED_PC(FRAME) (mips_frame_saved_pc(FRAME))
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#define FRAME_ARGS_ADDRESS(fi) (fi)->frame
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#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
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/* Return number of args passed to a frame.
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Can return -1, meaning no way to tell. */
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#define FRAME_NUM_ARGS(num, fi) (num = mips_frame_num_args(fi))
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/* Return number of bytes at start of arglist that are not really args. */
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#define FRAME_ARGS_SKIP 0
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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This includes special registers such as pc and fp saved in special
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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(frame_info, frame_saved_regs) ( \
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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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/* Things needed for making the inferior call functions. */
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/* Stack has strict alignment. However, use PUSH_ARGUMENTS
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to take care of it. */
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/*#define STACK_ALIGN(addr) (((addr)+3)&~3)*/
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#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
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sp = mips_push_arguments(nargs, args, sp, struct_return, struct_addr)
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/* Push an empty stack frame, to record the current PC, etc. */
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#define PUSH_DUMMY_FRAME mips_push_dummy_frame()
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/* Discard from the stack the innermost frame, restoring all registers. */
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#define POP_FRAME mips_pop_frame()
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#define MK_OP(op,rs,rt,offset) (((op)<<26)|((rs)<<21)|((rt)<<16)|(offset))
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#define CALL_DUMMY_SIZE (16*4)
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#define Dest_Reg 2
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#define CALL_DUMMY {\
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MK_OP(0,RA_REGNUM,0,8), /* jr $ra # Fake ABOUT_TO_RETURN ...*/\
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0, /* nop # ... to stop raw backtrace*/\
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||||
0x27bd0000, /* addu sp,?0 # Pseudo prologue */\
|
||||
/* Start here: */\
|
||||
MK_OP(061,SP_REGNUM,12,0), /* lwc1 $f12,0(sp) # Reload first 4 args*/\
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MK_OP(061,SP_REGNUM,13,4), /* lwc1 $f13,4(sp) */\
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MK_OP(061,SP_REGNUM,14,8), /* lwc1 $f14,8(sp) */\
|
||||
MK_OP(061,SP_REGNUM,15,12), /* lwc1 $f15,12(sp) */\
|
||||
MK_OP(043,SP_REGNUM,4,0), /* lw $r4,0(sp) # Re-load FP regs*/\
|
||||
MK_OP(043,SP_REGNUM,5,4), /* lw $r5,4(sp) */\
|
||||
MK_OP(043,SP_REGNUM,6,8), /* lw $r6,8(sp) */\
|
||||
MK_OP(043,SP_REGNUM,7,12), /* lw $r7,12(sp) */\
|
||||
(017<<26)| (Dest_Reg << 16), /* lui $r31,<target upper 16 bits>*/\
|
||||
MK_OP(13,Dest_Reg,Dest_Reg,0), /* ori $r31,$r31,<lower 16 bits>*/ \
|
||||
(Dest_Reg<<21) | (31<<11) | 9, /* jalr $r31 */\
|
||||
MK_OP(043,SP_REGNUM,7,12), /* lw $r7,12(sp) */\
|
||||
0x5000d, /* bpt */\
|
||||
}
|
||||
|
||||
#define CALL_DUMMY_START_OFFSET 12
|
||||
|
||||
/* Insert the specified number of args and function address
|
||||
into a call sequence of the above form stored at DUMMYNAME. */
|
||||
|
||||
#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p)\
|
||||
(((int*)dummyname)[11] |= (((unsigned long)(fun)) >> 16), \
|
||||
((int*)dummyname)[12] |= (unsigned short)(fun))
|
||||
|
||||
/* Specific information about a procedure.
|
||||
This overlays the MIPS's PDR records,
|
||||
mipsread.c (ab)uses this to save memory */
|
||||
|
||||
typedef struct mips_extra_func_info {
|
||||
long numargs; /* number of args to procedure (was iopt) */
|
||||
PDR pdr; /* Procedure descriptor record */
|
||||
} *mips_extra_func_info_t;
|
||||
|
||||
#define EXTRA_FRAME_INFO \
|
||||
mips_extra_func_info_t proc_desc; \
|
||||
int num_args;\
|
||||
struct frame_saved_regs *saved_regs;
|
||||
|
||||
#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) init_extra_frame_info(fci)
|
||||
|
||||
/* Special symbol found in blocks associated with routines. We can hang
|
||||
mips_extra_func_info_t's off of this. */
|
||||
|
||||
#define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
|
||||
|
||||
/* Convert a dbx stab register number (from `r' declaration) to a gdb REGNUM */
|
||||
|
||||
#define STAB_REG_TO_REGNUM(num) ((num) < 32 ? (num) : (num)+FP0_REGNUM-38)
|
||||
|
|
|
|||
|
|
@ -159,11 +159,11 @@ extern int mips_fpu;
|
|||
|
||||
/* Largest value REGISTER_RAW_SIZE can have. */
|
||||
|
||||
#define MAX_REGISTER_RAW_SIZE 4
|
||||
#define MAX_REGISTER_RAW_SIZE 8
|
||||
|
||||
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
|
||||
|
||||
#define MAX_REGISTER_VIRTUAL_SIZE 4
|
||||
#define MAX_REGISTER_VIRTUAL_SIZE 8
|
||||
|
||||
/* Nonzero if register N requires conversion
|
||||
from raw format to virtual format. */
|
||||
|
|
@ -189,6 +189,29 @@ extern int mips_fpu;
|
|||
(((N) >= FP0_REGNUM && (N) < FP0_REGNUM+32) \
|
||||
? builtin_type_float : builtin_type_int) \
|
||||
|
||||
#if HOST_BYTE_ORDER == BIG_ENDIAN
|
||||
/* All mips targets store doubles in a register pair with the least
|
||||
significant register in the lower numbered register.
|
||||
If the host is big endian, double register values need conversion between
|
||||
memory and register formats. */
|
||||
|
||||
#define REGISTER_CONVERT_TO_TYPE(n, type, buffer) \
|
||||
do {if ((n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 && \
|
||||
TYPE_CODE(type) == TYPE_CODE_FLT && TYPE_LENGTH(type) == 8) { \
|
||||
char __temp[4]; \
|
||||
memcpy (__temp, ((char *)(buffer))+4, 4); \
|
||||
memcpy (((char *)(buffer))+4, (buffer), 4); \
|
||||
memcpy (((char *)(buffer)), __temp, 4); }} while (0)
|
||||
|
||||
#define REGISTER_CONVERT_FROM_TYPE(n, type, buffer) \
|
||||
do {if ((n) >= FP0_REGNUM && (n) < FP0_REGNUM + 32 && \
|
||||
TYPE_CODE(type) == TYPE_CODE_FLT && TYPE_LENGTH(type) == 8) { \
|
||||
char __temp[4]; \
|
||||
memcpy (__temp, ((char *)(buffer))+4, 4); \
|
||||
memcpy (((char *)(buffer))+4, (buffer), 4); \
|
||||
memcpy (((char *)(buffer)), __temp, 4); }} while (0)
|
||||
#endif
|
||||
|
||||
/* Store the address of the place in which to copy the structure the
|
||||
subroutine will return. This is called from call_function. */
|
||||
|
||||
|
|
@ -200,13 +223,13 @@ extern int mips_fpu;
|
|||
into VALBUF. XXX floats */
|
||||
|
||||
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
||||
bcopy (REGBUF + REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
mips_extract_return_value(TYPE, REGBUF, VALBUF)
|
||||
|
||||
/* Write into appropriate registers a function return value
|
||||
of type TYPE, given in virtual format. */
|
||||
|
||||
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
||||
write_register_bytes (REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE))
|
||||
mips_store_return_value(TYPE, VALBUF)
|
||||
|
||||
/* Extract from an array REGBUF containing the (raw) register state
|
||||
the address in which a function should return its structure value,
|
||||
|
|
@ -309,6 +332,32 @@ extern int mips_fpu;
|
|||
/* Insert the specified number of args and function address
|
||||
into a call sequence of the above form stored at DUMMYNAME. */
|
||||
|
||||
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
||||
/* For big endian mips machines the loading of FP values depends on whether
|
||||
they are single or double precision. */
|
||||
#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) \
|
||||
do { \
|
||||
((int*)(dummyname))[11] |= ((unsigned long)(fun)) >> 16; \
|
||||
((int*)(dummyname))[12] |= (unsigned short)(fun); \
|
||||
if (! mips_fpu) { \
|
||||
((int *) (dummyname))[3] = 0; ((int *) (dummyname))[4] = 0; \
|
||||
((int *) (dummyname))[5] = 0; ((int *) (dummyname))[6] = 0; \
|
||||
} else { \
|
||||
if (nargs > 0 && \
|
||||
TYPE_CODE(VALUE_TYPE(args[0])) == TYPE_CODE_FLT && \
|
||||
TYPE_LENGTH(VALUE_TYPE(args[0])) == 8) { \
|
||||
((int *) (dummyname))[3] = MK_OP(061,SP_REGNUM,12,4); \
|
||||
((int *) (dummyname))[4] = MK_OP(061,SP_REGNUM,13,0); \
|
||||
} \
|
||||
if (nargs > 1 && \
|
||||
TYPE_CODE(VALUE_TYPE(args[1])) == TYPE_CODE_FLT && \
|
||||
TYPE_LENGTH(VALUE_TYPE(args[1])) == 8) { \
|
||||
((int *) (dummyname))[5] = MK_OP(061,SP_REGNUM,14,12); \
|
||||
((int *) (dummyname))[6] = MK_OP(061,SP_REGNUM,15,8); \
|
||||
} \
|
||||
} \
|
||||
} while (0)
|
||||
#else
|
||||
#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p)\
|
||||
do \
|
||||
{ \
|
||||
|
|
@ -323,6 +372,7 @@ extern int mips_fpu;
|
|||
} \
|
||||
} \
|
||||
while (0)
|
||||
#endif
|
||||
|
||||
/* There's a mess in stack frame creation. See comments in blockframe.c
|
||||
near reference to INIT_FRAME_PC_FIRST. */
|
||||
|
|
|
|||
|
|
@ -32,7 +32,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
#endif
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/dir.h>
|
||||
#include <signal.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
|
|
@ -613,7 +612,7 @@ static void
|
|||
mips_print_register (regnum, all)
|
||||
int regnum, all;
|
||||
{
|
||||
unsigned char raw_buffer[MAX_REGISTER_RAW_SIZE * 2]; /* *2 for doubles */
|
||||
unsigned char raw_buffer[MAX_REGISTER_RAW_SIZE];
|
||||
REGISTER_TYPE val;
|
||||
|
||||
/* Get the data in raw format. */
|
||||
|
|
@ -626,9 +625,15 @@ mips_print_register (regnum, all)
|
|||
/* If an even floating pointer register, also print as double. */
|
||||
if (regnum >= FP0_REGNUM && regnum < FP0_REGNUM+32
|
||||
&& !((regnum-FP0_REGNUM) & 1)) {
|
||||
read_relative_register_raw_bytes (regnum+1, raw_buffer+4);
|
||||
char dbuffer[MAX_REGISTER_RAW_SIZE];
|
||||
|
||||
read_relative_register_raw_bytes (regnum, dbuffer);
|
||||
read_relative_register_raw_bytes (regnum+1, dbuffer+4);
|
||||
#ifdef REGISTER_CONVERT_TO_TYPE
|
||||
REGISTER_CONVERT_TO_TYPE(regnum, builtin_type_double, dbuffer);
|
||||
#endif
|
||||
printf_filtered ("(d%d: ", regnum-FP0_REGNUM);
|
||||
val_print (builtin_type_double, raw_buffer, 0,
|
||||
val_print (builtin_type_double, dbuffer, 0,
|
||||
stdout, 0, 1, 0, Val_pretty_default);
|
||||
printf_filtered ("); ");
|
||||
}
|
||||
|
|
@ -801,6 +806,44 @@ mips_skip_prologue(pc)
|
|||
#endif
|
||||
}
|
||||
|
||||
/* Given a return value in `regbuf' with a type `valtype',
|
||||
extract and copy its value into `valbuf'. */
|
||||
void
|
||||
mips_extract_return_value (valtype, regbuf, valbuf)
|
||||
struct type *valtype;
|
||||
char regbuf[REGISTER_BYTES];
|
||||
char *valbuf;
|
||||
{
|
||||
int regnum;
|
||||
|
||||
regnum = TYPE_CODE (valtype) == TYPE_CODE_FLT && mips_fpu ? FP0_REGNUM : 2;
|
||||
|
||||
memcpy (valbuf, regbuf + REGISTER_BYTE (regnum), TYPE_LENGTH (valtype));
|
||||
#ifdef REGISTER_CONVERT_TO_TYPE
|
||||
REGISTER_CONVERT_TO_TYPE(regnum, valtype, valbuf);
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Given a return value in `regbuf' with a type `valtype',
|
||||
write it's value into the appropriate register. */
|
||||
void
|
||||
mips_store_return_value (valtype, valbuf)
|
||||
struct type *valtype;
|
||||
char *valbuf;
|
||||
{
|
||||
int regnum;
|
||||
char raw_buffer[MAX_REGISTER_RAW_SIZE];
|
||||
|
||||
regnum = TYPE_CODE (valtype) == TYPE_CODE_FLT && mips_fpu ? FP0_REGNUM : 2;
|
||||
memcpy(raw_buffer, valbuf, TYPE_LENGTH (valtype));
|
||||
|
||||
#ifdef REGISTER_CONVERT_FROM_TYPE
|
||||
REGISTER_CONVERT_FROM_TYPE(regnum, valtype, raw_buffer);
|
||||
#endif
|
||||
|
||||
write_register_bytes(REGISTER_BYTE (regnum), raw_buffer, TYPE_LENGTH (valtype));
|
||||
}
|
||||
|
||||
/* Let the user turn off floating point and set the fence post for
|
||||
heuristic_proc_start. */
|
||||
|
||||
|
|
@ -819,7 +862,7 @@ or dealing with return values.", &setlist),
|
|||
(add_set_cmd ("heuristic-fence-post", class_support, var_uinteger,
|
||||
(char *) &heuristic_fence_post,
|
||||
"Set the distance searched for the start of a function.\n\
|
||||
Set number of bytes to be searched backward to find the beginning of a
|
||||
Set number of bytes to be searched backward to find the beginning of a\n\
|
||||
function without symbols.", &setlist),
|
||||
&showlist);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -45,9 +45,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
This module can read all four of the known byte-order combinations,
|
||||
on any type of host. */
|
||||
|
||||
#define TM_FILE_OVERRIDE
|
||||
#include "defs.h"
|
||||
#include "mips/tm-mips.h"
|
||||
#include "symtab.h"
|
||||
#include "gdbtypes.h"
|
||||
#include "gdbcore.h"
|
||||
|
|
@ -58,6 +56,25 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|||
#include "stabsread.h"
|
||||
#include "complaints.h"
|
||||
|
||||
/* These are needed if the tm.h file does not contain the necessary
|
||||
mips specific definitions. */
|
||||
|
||||
#ifndef MIPS_EFI_SYMBOL_NAME
|
||||
#define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
|
||||
#include "coff/sym.h"
|
||||
#include "coff/symconst.h"
|
||||
typedef struct mips_extra_func_info {
|
||||
long numargs;
|
||||
PDR pdr;
|
||||
} *mips_extra_func_info_t;
|
||||
#ifndef RA_REGNUM
|
||||
#define RA_REGNUM 0
|
||||
#endif
|
||||
#ifndef FP0_REGNUM
|
||||
#define FP0_REGNUM 0
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef USG
|
||||
#include <sys/types.h>
|
||||
#define L_SET 0
|
||||
|
|
@ -415,8 +432,6 @@ mipscoff_psymtab_to_symtab (pst)
|
|||
printf_filtered ("Reading in symbols for %s...", pst->filename);
|
||||
fflush (stdout);
|
||||
}
|
||||
/* Get the BFD and list of pending typedefs */
|
||||
cur_bfd = CUR_BFD (pst);
|
||||
|
||||
next_symbol_text_func = mips_next_symbol_text;
|
||||
|
||||
|
|
@ -2392,8 +2407,15 @@ psymtab_to_symtab_1 (pst, filename)
|
|||
pst->dependencies[i]->filename);
|
||||
}
|
||||
|
||||
/* Do nothing if this is a dummy psymtab. */
|
||||
|
||||
if (pst->n_global_syms == 0 && pst->n_static_syms == 0
|
||||
&& pst->textlow == 0 && pst->texthigh == 0)
|
||||
return;
|
||||
|
||||
/* Now read the symbols for this symtab */
|
||||
|
||||
cur_bfd = CUR_BFD (pst);
|
||||
current_objfile = pst->objfile;
|
||||
cur_fd = FDR_IDX (pst);
|
||||
fh = (cur_fd == -1) ? (FDR *) NULL : ecoff_data (cur_bfd)->fdr + cur_fd;
|
||||
|
|
|
|||
Loading…
Reference in New Issue