5af923b0f0
Make Sparc a Multi-Arch target. Discard PARAMS macro (require ANSI). * sparc-tdep.c: include arch-utils.h. (SPARC_HAS_FPU, FP_REGISTER_BYTES, FP_MAX_REG NUM, SPARC_INTREG_SIZE, DUMMY_REG_SAVE_OFFSET): provide multi-arch-compatible definitions. (GDB_TARGET_IS_SPARC64): make into a runtime test. (struct frame_extra_info): Define, use instead of the macro. (Many places): Use alloca instead of statically allocated buffers that depend on a multi-arch variable such as MAX_REGISTER_RAW_SIZE. (sparc_extract_struct_value_address): Accept a pointer arg instead of an array sized by REGISTER_BYTES. (examine_prologue): Accept a pointer to an array of CORE_ADDR, instead of the defunct struct frame_saved_regs. Recognize new Sparc64 store instructions as part of the prologue. Ignore the destination of a frame store when parsing the prologue (so long as it's on the stack). (sparc_push_dummy_frame): Fix incorrect buffer offset for PSTATE. (sparc_frame_find_saved_regs): Accept a ptr to an array of CORE_ADDR instead of the defunct struct frame_saved_regs. (supply_gregset): Discard unnecessary 'zerobuf': just send NULL to supply_register. Provide 4-byte offset to compensate for diff between size of the prgreg_t elements on a 64-bit host and size of the registers for a 32-bit target. Fill all inaccessible regs with zero so they won't keep being requested again and again. (fill_gregset): Handle 32/64 size difference between registers and prgreg_t. Handle as many new 64-bit regs as possible. (supply_fpregset, fill_fpregset): Attempt to handle 64-bit world. (sparc_push_arguments): Rename to sparc32_push_arguments. Copy arguments into registers as well as onto stack, so that the CALL_DUMMY (code pushed onto the target stack) is not required. (sparc_extract_return_value): Rename to sparc32_extract_return_value. (sparc_store_return_value): Use memset instead of bzero. Use write_register_gen instead of write_register_bytes. (sparclet_store_return_value): New function. (_initialize_sparc_tdep): Call register_gdbarch_init to activate the gdbarch multi-architecture system. (sp64_push_arguments): Rename to sparc64_push_arguments. Extend to store arguments in general registers as well as on stack. (sparc64_extract_return_value): Rename to sp64_extract_return_value. Use as a private function, to be called by the new external function sparc64_extract_return_value. (sparclet_extract_return_value): New function. (sparc32_stack_align, sparc64_stack_align, sparc32_register_name, sparc64_register_name, sparc_print_extra_frame_info, sparclite_register_name, sparclet_register_name, sparc_push_return_address, sparc64_use_struct_convention, sparc32_store_struct_return, sparc64_store_struct_return, sparc32_register_virtual_type, sparc64_register_virtual_type, sparc32_register_size, sparc64_register_size, sparc32_register_byte, sparc64_register_byte, sparc_gdbarch_skip_prologue, sparc_convert_to_virtual, sparc_convert_to_raw, sparc_frame_init_saved_regs, sparc_frame_address, sparc_gdbarch_fix_call_dummy, sparc_coerce_float_to_double, sparc_call_dummy_address, sparc_y_regnum, sparc_reg_struct_has_addr, sparc_intreg_size, sparc_return_value_on_stack): New functions supporting multi-arch. (sparc_gdbarch_init): New function; initialize multi-arch. (struct gdbarch_tdep): Define, use for private multi-arch data. * config/sparc/tm-sparc.h: Move definitions around, enclose with #ifdef GDB_MULTI_ARCH tests, provide some multi-arch alternate definitions. Add enums for register names, to help debugging gdb. This header file must work for non-multi-arch and for multi-arch. * config/sparc/tm-sp64.h: Add GDB_MULTI_ARCH configuration. Also add AT_ENTRY_POINT definitions for CALL_DUMMY, for non-multi-arch case. Define GDB_MULTI_ARCH. * config/sparc/tm-sparclet.h: Add GDB_MULTI_ARCH configuration. Do not define GDB_MULTI_ARCH (bfd does not correctly identify target). * config/sparc/tm-sparclite.h: Ditto. * config/sparc/tm-sun4sol2.h: Define GDB_MULTI_ARCH. * sparclet-rom.c (sparclet_regnames): Initialize explicitly, to avoid using deprecated REGISTER_NAMES macro. * Makefile.in: Let sparc-tdep.c depend on arch-utils.h.
88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/* Macro definitions for GDB for a Sun 4 running Solaris 2
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Copyright 1989, 1992, 1993, 1994, 1995, 1997, 1998
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*#define GDB_MULTI_ARCH 2*/
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#include "sparc/tm-sparc.h"
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#include "tm-sysv4.h"
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/* With Sol2 it is no longer necessary to enable software single-step,
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since the /proc interface can take care of it for us in hardware. */
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#undef SOFTWARE_SINGLE_STEP
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#undef SOFTWARE_SINGLE_STEP_P
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/* There are two different signal handler trampolines in Solaris2. */
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#define IN_SIGTRAMP(pc, name) \
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((name) \
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&& (STREQ ("sigacthandler", name) || STREQ ("ucbsigvechandler", name)))
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/* The signal handler gets a pointer to an ucontext as third argument
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if it is called from sigacthandler. This is the offset to the saved
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PC within it. sparc_frame_saved_pc knows how to deal with
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ucbsigvechandler. */
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#define SIGCONTEXT_PC_OFFSET 44
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#if 0 /* FIXME Setjmp/longjmp are not as well doc'd in SunOS 5.x yet */
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/* Offsets into jmp_buf. Not defined by Sun, but at least documented in a
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comment in <machine/setjmp.h>! */
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#define JB_ELEMENT_SIZE 4 /* Size of each element in jmp_buf */
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#define JB_ONSSTACK 0
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#define JB_SIGMASK 1
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#define JB_SP 2
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#define JB_PC 3
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#define JB_NPC 4
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#define JB_PSR 5
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#define JB_G1 6
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#define JB_O0 7
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#define JB_WBCNT 8
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/* Figure out where the longjmp will land. We expect that we have just entered
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longjmp and haven't yet setup the stack frame, so the args are still in the
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output regs. %o0 (O0_REGNUM) points at the jmp_buf structure from which we
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extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
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This routine returns true on success */
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extern int
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get_longjmp_target PARAMS ((CORE_ADDR *));
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#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
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#endif /* 0 */
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/* The SunPRO compiler puts out 0 instead of the address in N_SO symbols,
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and for SunPRO 3.0, N_FUN symbols too. */
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#define SOFUN_ADDRESS_MAYBE_MISSING
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extern char *sunpro_static_transform_name PARAMS ((char *));
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#define STATIC_TRANSFORM_NAME(x) sunpro_static_transform_name (x)
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#define IS_STATIC_TRANSFORM_NAME(name) ((name)[0] == '$')
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#define FAULTED_USE_SIGINFO
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/* Enable handling of shared libraries for a.out executables. */
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#define HANDLE_SVR4_EXEC_EMULATORS
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/* Macros to extract process id and thread id from a composite pid/tid */
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#define PIDGET(PID) (((PID) & 0xffff))
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#define TIDGET(PID) (((PID) & 0x7fffffff) >> 16)
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#define MERGEPID(PID, TID) (((PID) & 0xffff) | ((TID) << 16))
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