diff options
Diffstat (limited to 'gdb/config/sparc/tm-sp64.h')
| -rw-r--r-- | gdb/config/sparc/tm-sp64.h | 226 |
1 files changed, 161 insertions, 65 deletions
diff --git a/gdb/config/sparc/tm-sp64.h b/gdb/config/sparc/tm-sp64.h index dbdf510..378212d 100644 --- a/gdb/config/sparc/tm-sp64.h +++ b/gdb/config/sparc/tm-sp64.h @@ -22,9 +22,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#define GDB_TARGET_IS_SPARC64 +#define GDB_MULTI_ARCH 2 -struct value; +#ifndef GDB_TARGET_IS_SPARC64 +#define GDB_TARGET_IS_SPARC64 1 +#endif + +#include "sparc/tm-sparc.h" /* Eeeew. Ok, we have to assume (for now) that the processor really is in sparc64 mode. While this is the same instruction sequence as @@ -70,6 +74,57 @@ struct value; nop */ +#if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0) +/* + * The following defines must go away for MULTI_ARCH. + */ + +#ifndef DO_CALL_DUMMY_ON_STACK + +/* + * These defines will suffice for the AT_ENTRY_POINT call dummy method. + */ + +#undef CALL_DUMMY +#define CALL_DUMMY {0} +#undef CALL_DUMMY_LENGTH +#define CALL_DUMMY_LENGTH 0 +#undef CALL_DUMMY_CALL_OFFSET +#define CALL_DUMMY_CALL_OFFSET 0 +#undef CALL_DUMMY_START_OFFSET +#define CALL_DUMMY_START_OFFSET 0 +#undef CALL_DUMMY_BREAKPOINT_OFFSET +#define CALL_DUMMY_BREAKPOINT_OFFSET 0 +#undef CALL_DUMMY_BREAKPOINT_OFFSET_P +#define CALL_DUMMY_BREAKPOINT_OFFSET_P 1 +#undef CALL_DUMMY_LOCATION +#define CALL_DUMMY_LOCATION AT_ENTRY_POINT +#undef CALL_DUMMY_STACK_ADJUST +#define CALL_DUMMY_STACK_ADJUST 128 +#undef SIZEOF_CALL_DUMMY_WORDS +#define SIZEOF_CALL_DUMMY_WORDS 0 +#undef CALL_DUMMY_ADDRESS +#define CALL_DUMMY_ADDRESS() entry_point_address() +#undef FIX_CALL_DUMMY +#define FIX_CALL_DUMMY(DUMMYNAME, PC, FUN, NARGS, ARGS, TYPE, GCC_P) +#undef PUSH_RETURN_ADDRESS +#define PUSH_RETURN_ADDRESS(PC, SP) sparc_at_entry_push_return_address (PC, SP) +extern CORE_ADDR +sparc_at_entry_push_return_address (CORE_ADDR pc, CORE_ADDR sp); + +#undef STORE_STRUCT_RETURN +#define STORE_STRUCT_RETURN(ADDR, SP) \ + sparc_at_entry_store_struct_return (ADDR, SP) +extern void +sparc_at_entry_store_struct_return (CORE_ADDR addr, CORE_ADDR sp); + + +#else +/* + * Old call dummy method, with CALL_DUMMY on the stack. + */ + +#undef CALL_DUMMY #define CALL_DUMMY { 0x9de3bec0fd3fa7f7LL, 0xf93fa7eff53fa7e7LL,\ 0xf13fa7dfed3fa7d7LL, 0xe93fa7cfe53fa7c7LL,\ 0xe13fa7bfdd3fa7b7LL, 0xd93fa7afd53fa7a7LL,\ @@ -86,17 +141,83 @@ struct value; /* 128 is to reserve space to write the %i/%l registers that will be restored when we resume. */ +#undef CALL_DUMMY_STACK_ADJUST #define CALL_DUMMY_STACK_ADJUST 128 +/* Size of the call dummy in bytes. */ +#undef CALL_DUMMY_LENGTH #define CALL_DUMMY_LENGTH 192 +/* Offset within CALL_DUMMY of the 'call' instruction. */ +#undef CALL_DUMMY_START_OFFSET #define CALL_DUMMY_START_OFFSET 148 +/* Offset within CALL_DUMMY of the 'call' instruction. */ +#undef CALL_DUMMY_CALL_OFFSET #define CALL_DUMMY_CALL_OFFSET (CALL_DUMMY_START_OFFSET + (5 * 4)) +/* Offset within CALL_DUMMY of the 'ta 1' instruction. */ +#undef CALL_DUMMY_BREAKPOINT_OFFSET #define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + (8 * 4)) -#include "sparc/tm-sparc.h" +/* Let's GDB know that it can make a call_dummy breakpoint. */ +#undef CALL_DUMMY_BREAKPOINT_OFFSET_P +#define CALL_DUMMY_BREAKPOINT_OFFSET_P 1 + +/* Call dummy will be located on the stack. */ +#undef CALL_DUMMY_LOCATION +#define CALL_DUMMY_LOCATION ON_STACK + +/* Insert the function address into the call dummy. */ +#undef FIX_CALL_DUMMY +#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ + sparc_fix_call_dummy (dummyname, pc, fun, type, gcc_p) +void sparc_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun, + struct type * value_type, int using_gcc)); + + +/* The remainder of these will accept the default definition. */ +#undef SIZEOF_CALL_DUMMY_WORDS +#undef PUSH_RETURN_ADDRESS +#undef CALL_DUMMY_ADDRESS +#undef STORE_STRUCT_RETURN + +#endif + +/* Does the specified function use the "struct returning" convention + or the "value returning" convention? The "value returning" convention + almost invariably returns the entire value in registers. The + "struct returning" convention often returns the entire value in + memory, and passes a pointer (out of or into the function) saying + where the value (is or should go). + + Since this sometimes depends on whether it was compiled with GCC, + this is also an argument. This is used in call_function to build a + stack, and in value_being_returned to print return values. + + On Sparc64, we only pass pointers to structs if they're larger then + 32 bytes. Otherwise they're stored in %o0-%o3 (floating-point + values go into %fp0-%fp3). */ + +#undef USE_STRUCT_CONVENTION +#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 32) + +CORE_ADDR sparc64_push_arguments PARAMS ((int, + struct value **, + CORE_ADDR, + int, + CORE_ADDR)); +#undef PUSH_ARGUMENTS +#define PUSH_ARGUMENTS(A,B,C,D,E) \ + (sparc64_push_arguments ((A), (B), (C), (D), (E))) + +/* Store the address of the place in which to copy the structure the + subroutine will return. This is called from call_function. */ +/* FIXME: V9 uses %o0 for this. */ + +#undef STORE_STRUCT_RETURN +#define STORE_STRUCT_RETURN(ADDR, SP) \ + { target_write_memory ((SP)+(16*8), (char *)&(ADDR), 8); } /* Stack must be aligned on 128-bit boundaries when synthesizing function calls. */ @@ -104,11 +225,6 @@ struct value; #undef STACK_ALIGN #define STACK_ALIGN(ADDR) (((ADDR) + 15 ) & -16) -/* Number of machine registers. */ - -#undef NUM_REGS -#define NUM_REGS 125 - /* Initializer for an array of names of registers. There should be NUM_REGS strings in this initializer. */ /* Some of these registers are only accessible from priviledged mode. @@ -148,6 +264,25 @@ struct value; "icc", "xcc", "fcc0", "fcc1", "fcc2", "fcc3" \ } +#undef REG_STRUCT_HAS_ADDR +#define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 32) + +extern CORE_ADDR sparc64_read_sp (); +extern CORE_ADDR sparc64_read_fp (); +extern void sparc64_write_sp PARAMS ((CORE_ADDR)); +extern void sparc64_write_fp PARAMS ((CORE_ADDR)); + +#define TARGET_READ_SP() (sparc64_read_sp ()) +#define TARGET_READ_FP() (sparc64_read_fp ()) +#define TARGET_WRITE_SP(X) (sparc64_write_sp (X)) +#define TARGET_WRITE_FP(X) (sparc64_write_fp (X)) + +#undef EXTRACT_RETURN_VALUE +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + sp64_extract_return_value(TYPE, REGBUF, VALBUF, 0) +extern void +sp64_extract_return_value PARAMS ((struct type *, char[], char *, int)); + /* Register numbers of various important registers. Note that some of these values are "real" register numbers, and correspond to the general registers of the machine, @@ -155,7 +290,8 @@ struct value; to be actual register numbers as far as the user is concerned but do serve to get the desired values when passed to read_register. */ -#if 0 /* defined in tm-sparc.h, replicated for doc purposes */ +#if 0 /* defined in tm-sparc.h, replicated + for doc purposes */ #define G0_REGNUM 0 /* %g0 */ #define G1_REGNUM 1 /* %g1 */ #define O0_REGNUM 8 /* %o0 */ @@ -172,7 +308,7 @@ struct value; #define FP0_REGNUM 32 /* Floating point register 0 */ #endif -#define FP_MAX_REGNUM 80 /* 1 + last fp reg number */ +/*#define FP_MAX_REGNUM 80*/ /* 1 + last fp reg number */ /* #undef v8 misc. regs */ @@ -187,7 +323,8 @@ struct value; /* v9 misc. and priv. regs */ -#define C0_REGNUM FP_MAX_REGNUM /* Start of control registers */ +#define C0_REGNUM 80 /* Start of control registers */ + #define PC_REGNUM (C0_REGNUM + 0) /* Current PC */ #define NPC_REGNUM (C0_REGNUM + 1) /* Next PC */ #define CCR_REGNUM (C0_REGNUM + 2) /* Condition Code Register (%xcc,%icc) */ @@ -220,6 +357,11 @@ struct value; #define FCC2_REGNUM (C0_REGNUM + 43) /* fp cc reg 2 */ #define FCC3_REGNUM (C0_REGNUM + 44) /* fp cc reg 3 */ +/* Number of machine registers. */ + +#undef NUM_REGS +#define NUM_REGS 125 + /* Total amount of space needed to store our copies of the machine's register state, the array `registers'. Some of the registers aren't 64 bits, but it's a lot simpler just to assume @@ -291,40 +433,12 @@ struct value; #undef TARGET_LONG_LONG_BIT #define TARGET_LONG_LONG_BIT 64 -/* Does the specified function use the "struct returning" convention - or the "value returning" convention? The "value returning" convention - almost invariably returns the entire value in registers. The - "struct returning" convention often returns the entire value in - memory, and passes a pointer (out of or into the function) saying - where the value (is or should go). - - Since this sometimes depends on whether it was compiled with GCC, - this is also an argument. This is used in call_function to build a - stack, and in value_being_returned to print return values. - - On Sparc64, we only pass pointers to structs if they're larger then - 32 bytes. Otherwise they're stored in %o0-%o3 (floating-point - values go into %fp0-%fp3). */ - - -#undef USE_STRUCT_CONVENTION -#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 32) - -#undef REG_STRUCT_HAS_ADDR -#define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 32) - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. */ -/* FIXME: V9 uses %o0 for this. */ - -#undef STORE_STRUCT_RETURN -#define STORE_STRUCT_RETURN(ADDR, SP) \ - { target_write_memory ((SP)+(16*8), (char *)&(ADDR), 8); } - /* Return number of bytes at start of arglist that are not really args. */ #undef FRAME_ARGS_SKIP #define FRAME_ARGS_SKIP 136 + +#endif /* GDB_MULTI_ARCH */ /* Offsets into jmp_buf. FIXME: This was borrowed from the v8 stuff and will probably have to change @@ -342,36 +456,18 @@ struct value; #define JB_O0 7 #define JB_WBCNT 8 -/* Figure out where the longjmp will land. We expect that we have just entered - longjmp and haven't yet setup the stack frame, so the args are still in the - output regs. %o0 (O0_REGNUM) points at the jmp_buf structure from which we - extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. - This routine returns true on success */ +/* Figure out where the longjmp will land. We expect that we have + just entered longjmp and haven't yet setup the stack frame, so the + args are still in the output regs. %o0 (O0_REGNUM) points at the + jmp_buf structure from which we extract the pc (JB_PC) that we will + land at. The pc is copied into ADDR. This routine returns true on + success */ extern int get_longjmp_target PARAMS ((CORE_ADDR *)); #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) -extern CORE_ADDR sparc64_read_sp (); -extern CORE_ADDR sparc64_read_fp (); -extern void sparc64_write_sp PARAMS ((CORE_ADDR)); -extern void sparc64_write_fp PARAMS ((CORE_ADDR)); - -#define TARGET_READ_SP() (sparc64_read_sp ()) -#define TARGET_READ_FP() (sparc64_read_fp ()) -#define TARGET_WRITE_SP(X) (sparc64_write_sp (X)) -#define TARGET_WRITE_FP(X) (sparc64_write_fp (X)) - #undef TM_PRINT_INSN_MACH #define TM_PRINT_INSN_MACH bfd_mach_sparc_v9a -CORE_ADDR sp64_push_arguments PARAMS ((int, struct value **, CORE_ADDR, unsigned char, CORE_ADDR)); -#undef PUSH_ARGUMENTS -#define PUSH_ARGUMENTS(A,B,C,D,E) (sp64_push_arguments ((A), (B), (C), (D), (E))) - -#undef EXTRACT_RETURN_VALUE -#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - sparc64_extract_return_value(TYPE, REGBUF, VALBUF, 0) -extern void -sparc64_extract_return_value PARAMS ((struct type *, char[], char *, int)); |