diff options
author | Michael Snyder <msnyder@vmware.com> | 1996-11-12 20:19:17 +0000 |
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committer | Michael Snyder <msnyder@vmware.com> | 1996-11-12 20:19:17 +0000 |
commit | 69992fc81685a032a147fa84989f7903684271bd (patch) | |
tree | e829ea832f3f5c979a7f816fdcef3f3c0dcda6bf /gdb/config/sh/tm-sh.h | |
parent | 6f3eea2bdf38e4b10ad6064326b505788a89dde7 (diff) | |
download | fsf-binutils-gdb-69992fc81685a032a147fa84989f7903684271bd.zip fsf-binutils-gdb-69992fc81685a032a147fa84989f7903684271bd.tar.gz fsf-binutils-gdb-69992fc81685a032a147fa84989f7903684271bd.tar.bz2 |
Tue Nov 12 12:16:40 1996 Michael Snyder <msnyder@cleaver.cygnus.com>
* sh-tdep.c: Add functionality for target function calls.
* config/sh/tm-sh.h: Add support for target function calls.
This is a safety check-in: everything works, and there'll be another
clean-up round shortly.
Diffstat (limited to 'gdb/config/sh/tm-sh.h')
-rw-r--r-- | gdb/config/sh/tm-sh.h | 86 |
1 files changed, 69 insertions, 17 deletions
diff --git a/gdb/config/sh/tm-sh.h b/gdb/config/sh/tm-sh.h index 402cbce..2b879d1 100644 --- a/gdb/config/sh/tm-sh.h +++ b/gdb/config/sh/tm-sh.h @@ -19,6 +19,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Contributed by Steve Chamberlain sac@cygnus.com */ +#ifdef __STDC__ +struct frame_info; +struct frame_saved_regs; +struct value; +struct type; +#endif + #define GDB_TARGET_IS_SH #define IEEE_FLOAT 1 @@ -109,13 +116,13 @@ extern CORE_ADDR sh_skip_prologue (); Entries beyond the first NUM_REGS are ignored. */ #define REGISTER_NAMES \ - { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ - "pc", "pr", "gbr", "vbr", "mach", "macl", "sr", \ + { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ + "pc", "pr", "gbr", "vbr", "mach", "macl", "sr", \ "fpul", "fpscr", \ "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7", \ "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15", \ - "ssr", "spc", \ + "ssr", "spc", \ "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0", \ "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1", \ } @@ -130,6 +137,9 @@ extern CORE_ADDR sh_skip_prologue (); passed to read_register. */ #define R0_REGNUM 0 +#define STRUCT_RETURN_REGNUM 2 +#define ARG0_REGNUM 4 +#define ARGLAST_REGNUM 7 #define FP_REGNUM 14 #define SP_REGNUM 15 #define PC_REGNUM 16 @@ -152,25 +162,28 @@ extern CORE_ADDR sh_skip_prologue (); /* Store the address of the place in which to copy the structure the subroutine will return. This is called from call_function. - We store structs through a pointer passed in R4 */ + We store structs through a pointer passed in R0 */ #define STORE_STRUCT_RETURN(ADDR, SP) \ - { write_register (4, (ADDR)); } + { write_register (STRUCT_RETURN_REGNUM, (ADDR)); } + +#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH(type) > 1) /* Extract from an array REGBUF containing the (raw) register state a function return value of type TYPE, and copy that, in virtual format, into VALBUF. */ +extern void sh_extract_return_value PARAMS ((struct type *, void *, void *)); #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - memcpy (VALBUF, (char *)(REGBUF), TYPE_LENGTH(TYPE)) + sh_extract_return_value (TYPE, REGBUF, VALBUF) /* Write into appropriate registers a function return value of type TYPE, given in virtual format. - Things always get returned in R4/R5 */ + Things always get returned in R0/R1 */ #define STORE_RETURN_VALUE(TYPE,VALBUF) \ - write_register_bytes (REGISTER_BYTE(4), VALBUF, TYPE_LENGTH (TYPE)) + write_register_bytes (REGISTER_BYTE(0), VALBUF, TYPE_LENGTH (TYPE)) /* Extract from an array REGBUF containing the (raw) register state the address in which a function should return its structure value, @@ -189,7 +202,7 @@ extern CORE_ADDR sh_skip_prologue (); int f_offset; #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - init_extra_frame_info(fromleaf, fi) + sh_init_extra_frame_info(fromleaf, fi) /* A macro that tells us whether the function invocation represented by FI does not have a frame on the stack associated with it. If it @@ -198,10 +211,9 @@ extern CORE_ADDR sh_skip_prologue (); #define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ (FRAMELESS) = frameless_look_for_prologue(FI) -#define FRAME_CHAIN(FRAME) sh_frame_chain(FRAME) -#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc) -#define FRAME_ARGS_ADDRESS(fi) (fi)->frame -#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame +#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc) +#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) /* Set VAL to the number of args passed to frame described by FI. Can set VAL to -1, meaning no way to tell. */ @@ -214,6 +226,9 @@ extern CORE_ADDR sh_skip_prologue (); #define FRAME_ARGS_SKIP 0 +extern void sh_frame_find_saved_regs PARAMS ((struct frame_info *fi, + struct frame_saved_regs *fsr)); + /* Put here the code to store, into a struct frame_saved_regs, the addresses of the saved registers of frame described by FRAME_INFO. This includes special registers such as pc and fp saved in special @@ -221,20 +236,57 @@ extern CORE_ADDR sh_skip_prologue (); the address we return for it IS the sp for the next frame. */ #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ - frame_find_saved_regs(frame_info, &(frame_saved_regs)) + sh_frame_find_saved_regs(frame_info, &(frame_saved_regs)) #define NAMES_HAVE_UNDERSCORE typedef unsigned short INSN_WORD; -#define CALL_DUMMY_LENGTH 10 +extern CORE_ADDR generic_read_register_dummy PARAMS ((struct frame_info *, + int regno)); + +extern void generic_push_dummy_frame PARAMS ((void)); +extern void generic_pop_dummy_frame PARAMS ((void)); + +extern int generic_pc_in_call_dummy PARAMS ((CORE_ADDR pc, + CORE_ADDR fp, + CORE_ADDR sp)); +extern char * generic_find_dummy_frame PARAMS ((CORE_ADDR pc, + CORE_ADDR fp, + CORE_ADDR sp)); + +extern void sh_push_return_address PARAMS ((CORE_ADDR)); +extern CORE_ADDR sh_push_arguments PARAMS ((int nargs, + struct value **args, + CORE_ADDR sp, + unsigned char struct_return, + CORE_ADDR struct_addr)); +extern int generic_frame_chain_valid PARAMS((CORE_ADDR, struct frame_info *)); + + + +#define CALL_DUMMY { } +#define CALL_DUMMY_LENGTH (0) +#define CALL_DUMMY_START_OFFSET (0) +#define CALL_DUMMY_BREAKPOINT_OFFSET (0) +#define CALL_DUMMY_LOCATION AT_ENTRY_POINT +#define CALL_DUMMY_ADDRESS() (entry_point_address ()) +#define PUSH_RETURN_ADDRESS(PC) (sh_push_return_address (PC)) +#define FRAME_CHAIN(FRAME) (sh_frame_chain(FRAME)) +#define PUSH_DUMMY_FRAME (generic_push_dummy_frame ()) +#define FRAME_CHAIN_VALID(FP, FRAME) (generic_frame_chain_valid (FP, FRAME)) +#define PC_IN_CALL_DUMMY(PC, SP, FP) (generic_pc_in_call_dummy (PC, SP, FP)) +#define FIX_CALL_DUMMY(DUMMYNAME, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) +#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ + (SP) = sh_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) /* Discard from the stack the innermost frame, restoring all saved registers. */ -#define POP_FRAME pop_frame(); +#define POP_FRAME sh_pop_frame(); #define NOP {0x20, 0x0b} #define REGISTER_SIZE 4 +#define COERCE_FLOAT_TO_DOUBLE 1 |