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-rw-r--r--gdb/sparcnbsd-tdep.c533
1 files changed, 0 insertions, 533 deletions
diff --git a/gdb/sparcnbsd-tdep.c b/gdb/sparcnbsd-tdep.c
deleted file mode 100644
index 1103eaa..0000000
--- a/gdb/sparcnbsd-tdep.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/* Target-dependent code for SPARC systems running NetBSD.
- Copyright 2002 Free Software Foundation, Inc.
- Contributed by Wasabi Systems, Inc.
-
- This file is part of GDB.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "regcache.h"
-#include "target.h"
-#include "value.h"
-#include "osabi.h"
-
-#include "sparcnbsd-tdep.h"
-#include "nbsd-tdep.h"
-
-#include "solib-svr4.h"
-
-#define REG32_OFFSET_PSR (0 * 4)
-#define REG32_OFFSET_PC (1 * 4)
-#define REG32_OFFSET_NPC (2 * 4)
-#define REG32_OFFSET_Y (3 * 4)
-#define REG32_OFFSET_GLOBAL (4 * 4)
-#define REG32_OFFSET_OUT (12 * 4)
-
-#define REG64_OFFSET_TSTATE (0 * 8)
-#define REG64_OFFSET_PC (1 * 8)
-#define REG64_OFFSET_NPC (2 * 8)
-#define REG64_OFFSET_Y (3 * 8)
-#define REG64_OFFSET_GLOBAL (4 * 8)
-#define REG64_OFFSET_OUT (12 * 8)
-
-void
-sparcnbsd_supply_reg32 (char *regs, int regno)
-{
- int i;
-
- if (regno == PS_REGNUM || regno == -1)
- supply_register (PS_REGNUM, regs + REG32_OFFSET_PSR);
-
- if (regno == PC_REGNUM || regno == -1)
- supply_register (PC_REGNUM, regs + REG32_OFFSET_PC);
-
- if (regno == NPC_REGNUM || regno == -1)
- supply_register (NPC_REGNUM, regs + REG32_OFFSET_NPC);
-
- if (regno == Y_REGNUM || regno == -1)
- supply_register (Y_REGNUM, regs + REG32_OFFSET_Y);
-
- if ((regno >= G0_REGNUM && regno <= G7_REGNUM) || regno == -1)
- {
- if (regno == G0_REGNUM || regno == -1)
- supply_register (G0_REGNUM, NULL); /* %g0 is always zero */
- for (i = G1_REGNUM; i <= G7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- supply_register (i, regs + REG32_OFFSET_GLOBAL +
- ((i - G0_REGNUM) * 4));
- }
- }
-
- if ((regno >= O0_REGNUM && regno <= O7_REGNUM) || regno == -1)
- {
- for (i = O0_REGNUM; i <= O7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- supply_register (i, regs + REG32_OFFSET_OUT +
- ((i - O0_REGNUM) * 4));
- }
- }
-
- /* Inputs and Locals are stored onto the stack by by the kernel. */
- if ((regno >= L0_REGNUM && regno <= I7_REGNUM) || regno == -1)
- {
- CORE_ADDR sp = read_register (SP_REGNUM);
- char buf[4];
-
- for (i = L0_REGNUM; i <= I7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- {
- target_read_memory (sp + ((i - L0_REGNUM) * 4),
- buf, sizeof (buf));
- supply_register (i, buf);
- }
- }
- }
-
- /* FIXME: If we don't set these valid, read_register_bytes() rereads
- all the regs every time it is called! */
- if (regno == WIM_REGNUM || regno == -1)
- supply_register (WIM_REGNUM, NULL);
- if (regno == TBR_REGNUM || regno == -1)
- supply_register (TBR_REGNUM, NULL);
- if (regno == CPS_REGNUM || regno == -1)
- supply_register (CPS_REGNUM, NULL);
-}
-
-void
-sparcnbsd_supply_reg64 (char *regs, int regno)
-{
- int i;
- char buf[8];
-
- if (regno == TSTATE_REGNUM || regno == -1)
- supply_register (PS_REGNUM, regs + REG64_OFFSET_TSTATE);
-
- if (regno == PC_REGNUM || regno == -1)
- supply_register (PC_REGNUM, regs + REG64_OFFSET_PC);
-
- if (regno == NPC_REGNUM || regno == -1)
- supply_register (NPC_REGNUM, regs + REG64_OFFSET_NPC);
-
- if (regno == Y_REGNUM || regno == -1)
- {
- memset (buf, 0, sizeof (buf));
- memcpy (&buf[4], regs + REG64_OFFSET_Y, 4);
- supply_register (Y_REGNUM, buf);
- }
-
- if ((regno >= G0_REGNUM && regno <= G7_REGNUM) || regno == -1)
- {
- if (regno == G0_REGNUM || regno == -1)
- supply_register (G0_REGNUM, NULL); /* %g0 is always zero */
- for (i = G1_REGNUM; i <= G7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- supply_register (i, regs + REG64_OFFSET_GLOBAL +
- ((i - G0_REGNUM) * 8));
- }
- }
-
- if ((regno >= O0_REGNUM && regno <= O7_REGNUM) || regno == -1)
- {
- for (i = O0_REGNUM; i <= O7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- supply_register (i, regs + REG64_OFFSET_OUT +
- ((i - O0_REGNUM) * 8));
- }
- }
-
- /* Inputs and Locals are stored onto the stack by by the kernel. */
- if ((regno >= L0_REGNUM && regno <= I7_REGNUM) || regno == -1)
- {
- CORE_ADDR sp = read_register (SP_REGNUM);
- char buf[8];
-
- if (sp & 1)
- {
- /* Registers are 64-bit. */
- sp += 2047;
-
- for (i = L0_REGNUM; i <= I7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- {
- target_read_memory (sp + ((i - L0_REGNUM) * 8),
- buf, sizeof (buf));
- supply_register (i, buf);
- }
- }
- }
- else
- {
- /* Registers are 32-bit. Toss any sign-extension of the stack
- pointer, clear out the top half of the temporary buffer, and
- put the register value in the bottom half. */
-
- sp &= 0xffffffffUL;
- memset (buf, 0, sizeof (buf));
- for (i = L0_REGNUM; i <= I7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- {
- target_read_memory (sp + ((i - L0_REGNUM) * 4),
- &buf[4], sizeof (buf));
- supply_register (i, buf);
- }
- }
- }
- }
-
- /* FIXME: If we don't set these valid, read_register_bytes() rereads
- all the regs every time it is called! */
- if (regno == WIM_REGNUM || regno == -1)
- supply_register (WIM_REGNUM, NULL);
- if (regno == TBR_REGNUM || regno == -1)
- supply_register (TBR_REGNUM, NULL);
- if (regno == CPS_REGNUM || regno == -1)
- supply_register (CPS_REGNUM, NULL);
-}
-
-void
-sparcnbsd_fill_reg32 (char *regs, int regno)
-{
- int i;
-
- if (regno == PS_REGNUM || regno == -1)
- regcache_collect (PS_REGNUM, regs + REG32_OFFSET_PSR);
-
- if (regno == PC_REGNUM || regno == -1)
- regcache_collect (PC_REGNUM, regs + REG32_OFFSET_PC);
-
- if (regno == NPC_REGNUM || regno == -1)
- regcache_collect (NPC_REGNUM, regs + REG32_OFFSET_NPC);
-
- if (regno == Y_REGNUM || regno == -1)
- regcache_collect (Y_REGNUM, regs + REG32_OFFSET_Y);
-
- if ((regno >= G0_REGNUM && regno <= G7_REGNUM) || regno == -1)
- {
- /* %g0 is always zero */
- for (i = G1_REGNUM; i <= G7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- regcache_collect (i, regs + REG32_OFFSET_GLOBAL +
- ((i - G0_REGNUM) * 4));
- }
- }
-
- if ((regno >= O0_REGNUM && regno <= O7_REGNUM) || regno == -1)
- {
- for (i = O0_REGNUM; i <= O7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- regcache_collect (i, regs + REG32_OFFSET_OUT +
- ((i - O0_REGNUM) * 4));
- }
- }
-
- /* Responsibility for the stack regs is pushed off onto the caller. */
-}
-
-void
-sparcnbsd_fill_reg64 (char *regs, int regno)
-{
- int i;
-
- if (regno == TSTATE_REGNUM || regno == -1)
- regcache_collect (TSTATE_REGNUM, regs + REG64_OFFSET_TSTATE);
-
- if (regno == PC_REGNUM || regno == -1)
- regcache_collect (PC_REGNUM, regs + REG64_OFFSET_PC);
-
- if (regno == NPC_REGNUM || regno == -1)
- regcache_collect (NPC_REGNUM, regs + REG64_OFFSET_NPC);
-
- if (regno == Y_REGNUM || regno == -1)
- regcache_collect (Y_REGNUM, regs + REG64_OFFSET_Y);
-
- if ((regno >= G0_REGNUM && regno <= G7_REGNUM) || regno == -1)
- {
- /* %g0 is always zero */
- for (i = G1_REGNUM; i <= G7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- regcache_collect (i, regs + REG64_OFFSET_GLOBAL +
- ((i - G0_REGNUM) * 4));
- }
- }
-
- if ((regno >= O0_REGNUM && regno <= O7_REGNUM) || regno == -1)
- {
- for (i = O0_REGNUM; i <= O7_REGNUM; i++)
- {
- if (regno == i || regno == -1)
- regcache_collect (i, regs + REG64_OFFSET_OUT +
- ((i - O0_REGNUM) * 4));
- }
- }
-
- /* Responsibility for the stack regs is pushed off onto the caller. */
-}
-
-void
-sparcnbsd_supply_fpreg32 (char *fpregs, int regno)
-{
- int i;
-
- for (i = 0; i <= 31; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- supply_register (FP0_REGNUM + i, fpregs + (i * 4));
- }
-
- if (regno == FPS_REGNUM || regno == -1)
- supply_register (FPS_REGNUM, fpregs + (32 * 4));
-}
-
-void
-sparcnbsd_supply_fpreg64 (char *fpregs, int regno)
-{
- int i;
-
- for (i = 0; i <= 31; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- supply_register (FP0_REGNUM + i, fpregs + (i * 4));
- }
-
- for (; i <= 47; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- supply_register (FP0_REGNUM + i, fpregs + (32 * 4) + (i * 8));
- }
-
- if (regno == FPS_REGNUM || regno == -1)
- supply_register (FPS_REGNUM, fpregs + (32 * 4) + (16 * 8));
-
- /* XXX %gsr */
-}
-
-void
-sparcnbsd_fill_fpreg32 (char *fpregs, int regno)
-{
- int i;
-
- for (i = 0; i <= 31; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- regcache_collect (FP0_REGNUM + i, fpregs + (i * 4));
- }
-
- if (regno == FPS_REGNUM || regno == -1)
- regcache_collect (FPS_REGNUM, fpregs + (32 * 4));
-}
-
-void
-sparcnbsd_fill_fpreg64 (char *fpregs, int regno)
-{
- int i;
-
- for (i = 0; i <= 31; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- regcache_collect (FP0_REGNUM + i, fpregs + (i * 4));
- }
-
- for (; i <= 47; i++)
- {
- if (regno == (FP0_REGNUM + i) || regno == -1)
- regcache_collect (FP0_REGNUM + i, fpregs + (32 * 4) + (i * 8));
- }
-
- if (regno == FPS_REGNUM || regno == -1)
- regcache_collect (FPS_REGNUM, fpregs + (32 * 4) + (16 * 8));
-
- /* XXX %gsr */
-}
-
-/* Unlike other NetBSD implementations, the SPARC port historically used
- .reg and .reg2 (see bfd/netbsd-core.c), and as such, we can share one
- routine for a.out and ELF core files. */
-static void
-fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
- CORE_ADDR ignore)
-{
- int reg_size, fpreg_size;
-
- if (gdbarch_ptr_bit (current_gdbarch) == 32)
- {
- reg_size = (20 * 4);
- fpreg_size = (33 * 4);
- }
- else
- {
- reg_size = (20 * 8);
- fpreg_size = (64 * 4)
- + 8 /* fsr */
- + 4 /* gsr */
- + 4; /* pad */
- }
-
- switch (which)
- {
- case 0: /* Integer registers */
- if (core_reg_size != reg_size)
- warning ("Wrong size register set in core file.");
- else if (gdbarch_ptr_bit (current_gdbarch) == 32)
- sparcnbsd_supply_reg32 (core_reg_sect, -1);
- else
- sparcnbsd_supply_reg64 (core_reg_sect, -1);
- break;
-
- case 2: /* Floating pointer registers */
- if (core_reg_size != fpreg_size)
- warning ("Wrong size FP register set in core file.");
- else if (gdbarch_ptr_bit (current_gdbarch) == 32)
- sparcnbsd_supply_fpreg32 (core_reg_sect, -1);
- else
- sparcnbsd_supply_fpreg64 (core_reg_sect, -1);
- break;
-
- default:
- /* Don't know what kind of register request this is; just ignore it. */
- break;
- }
-}
-
-static struct core_fns sparcnbsd_core_fns =
-{
- bfd_target_unknown_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_core_registers, /* core_read_registers */
- NULL
-};
-
-static struct core_fns sparcnbsd_elfcore_fns =
-{
- bfd_target_elf_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_core_registers, /* core_read_registers */
- NULL
-};
-
-/* FIXME: Need PC_IN_SIGTRAMP() support, but NetBSD/sparc signal trampolines
- aren't easily identified. */
-
-static int
-sparcnbsd_get_longjmp_target_32 (CORE_ADDR *pc)
-{
- CORE_ADDR jb_addr;
- char buf[4];
-
- jb_addr = read_register (O0_REGNUM);
-
- if (target_read_memory (jb_addr + 12, buf, sizeof (buf)))
- return 0;
-
- *pc = extract_address (buf, sizeof (buf));
-
- return 1;
-}
-
-static int
-sparcnbsd_get_longjmp_target_64 (CORE_ADDR *pc)
-{
- CORE_ADDR jb_addr;
- char buf[8];
-
- jb_addr = read_register (O0_REGNUM);
-
- if (target_read_memory (jb_addr + 16, buf, sizeof (buf)))
- return 0;
-
- *pc = extract_address (buf, sizeof (buf));
-
- return 1;
-}
-
-static int
-sparcnbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
-{
- if (strcmp (name, "_DYNAMIC") == 0)
- return 1;
-
- return 0;
-}
-
-static void
-sparcnbsd_init_abi_common (struct gdbarch_info info,
- struct gdbarch *gdbarch)
-{
- set_gdbarch_get_longjmp_target (gdbarch, gdbarch_ptr_bit (gdbarch) == 32 ?
- sparcnbsd_get_longjmp_target_32 :
- sparcnbsd_get_longjmp_target_64);
-}
-
-static void
-sparcnbsd_init_abi_aout (struct gdbarch_info info,
- struct gdbarch *gdbarch)
-{
- sparcnbsd_init_abi_common (info, gdbarch);
-
- set_gdbarch_in_solib_call_trampoline (gdbarch,
- sparcnbsd_aout_in_solib_call_trampoline);
-}
-
-static void
-sparcnbsd_init_abi_elf (struct gdbarch_info info,
- struct gdbarch *gdbarch)
-{
- sparcnbsd_init_abi_common (info, gdbarch);
-
- set_gdbarch_pc_in_sigtramp (gdbarch, nbsd_pc_in_sigtramp);
-
- set_solib_svr4_fetch_link_map_offsets (gdbarch,
- gdbarch_ptr_bit (gdbarch) == 32 ?
- nbsd_ilp32_solib_svr4_fetch_link_map_offsets :
- nbsd_lp64_solib_svr4_fetch_link_map_offsets);
-}
-
-static enum gdb_osabi
-sparcnbsd_aout_osabi_sniffer (bfd *abfd)
-{
- if (strcmp (bfd_get_target (abfd), "a.out-sparc-netbsd") == 0)
- return GDB_OSABI_NETBSD_AOUT;
-
- return GDB_OSABI_UNKNOWN;
-}
-
-void
-_initialize_sparnbsd_tdep (void)
-{
- gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_aout_flavour,
- sparcnbsd_aout_osabi_sniffer);
-
- gdbarch_register_osabi (bfd_arch_sparc, GDB_OSABI_NETBSD_AOUT,
- sparcnbsd_init_abi_aout);
- gdbarch_register_osabi (bfd_arch_sparc, GDB_OSABI_NETBSD_ELF,
- sparcnbsd_init_abi_elf);
-
- add_core_fns (&sparcnbsd_core_fns);
- add_core_fns (&sparcnbsd_elfcore_fns);
-}
generated by cgit v1.1 at 2025-08-09 13:48:33 +0000