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[RFA] mips-n32 use_struct_convention
- From: Michael Snyder <msnyder at redhat dot com>
- To: gdb-patches at sources dot redhat dot com
- Cc: cagney at redhat dot com, kevinb at redhat dot com
- Date: Thu, 01 Aug 2002 19:17:02 -0700
- Subject: [RFA] mips-n32 use_struct_convention
- Organization: Red Hat, Inc.
This patch makes use_struct_convention work correctly for N32,
and incidentally adds a couple of convenience macros (yes, they
are gdbarch-compatible).
This is one half of my earlier patch for N32, which I'll withdraw
if this and the following are acceptable. Just splitting it up
for ease of review.
2002-08-01 Michael Snyder <msnyder@redhat.com>
* mips-tdep.c: Define new macros MIPS_NEWABI, MIPS_OLDABI
(by analogy with MIPS_EABI).
(mips_use_struct_convention): NEWABI (n32 and n64) uses
same scheme as EABI.
Index: mips-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mips-tdep.c,v
retrieving revision 1.87
diff -c -3 -p -r1.87 mips-tdep.c
*** mips-tdep.c 1 Aug 2002 21:36:27 -0000 1.87
--- mips-tdep.c 2 Aug 2002 02:19:11 -0000
*************** struct gdbarch_tdep
*** 146,153 ****
enum gdb_osabi osabi;
};
! #define MIPS_EABI (gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_EABI32 \
! || gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_EABI64)
#define MIPS_LAST_FP_ARG_REGNUM (gdbarch_tdep (current_gdbarch)->mips_last_fp_arg_regnum)
--- 146,162 ----
enum gdb_osabi osabi;
};
! #define MIPS_EABI \
! (gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_EABI32 \
! || gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_EABI64)
!
! #define MIPS_NEWABI \
! (gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_N32 \
! || gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_N64)
!
! #define MIPS_OLDABI \
! (gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_O32 \
! || gdbarch_tdep (current_gdbarch)->mips_abi == MIPS_ABI_O64)
#define MIPS_LAST_FP_ARG_REGNUM (gdbarch_tdep (current_gdbarch)->mips_last_fp_arg_regnum)
*************** show_mask_address (char *cmd, int from_t
*** 561,570 ****
int
mips_use_struct_convention (int gcc_p, struct type *type)
{
! if (MIPS_EABI)
return (TYPE_LENGTH (type) > 2 * MIPS_SAVED_REGSIZE);
else
! return 1; /* Structures are returned by ref in extra arg0 */
}
/* Tell if the program counter value in MEMADDR is in a MIPS16 function. */
--- 570,579 ----
int
mips_use_struct_convention (int gcc_p, struct type *type)
{
! if (MIPS_EABI || MIPS_NEWABI)
return (TYPE_LENGTH (type) > 2 * MIPS_SAVED_REGSIZE);
else
! return 1; /* Old ABI: structures are returned by ref in extra arg0 */
}
/* Tell if the program counter value in MEMADDR is in a MIPS16 function. */