/* PPC linux native support.
- Copyright (C) 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "frame.h"
#include "inferior.h"
#include "gdbcore.h"
+#include "regcache.h"
#include <sys/types.h>
#include <sys/param.h>
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
+#include "ppc-tdep.h"
int
-kernel_u_size ()
+kernel_u_size (void)
{
return (sizeof (struct user));
}
-static int regmap[] =
-{PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
- PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
- PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
- PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
- PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
- PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
- PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
- PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
- PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ};
+/* *INDENT-OFF* */
+/* registers layout, as presented by the ptrace interface:
+PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
+PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
+PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
+PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
+PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
+PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
+PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
+PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
+PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ */
+/* *INDENT_ON * */
int
-ppc_register_u_addr (int ustart, int regnum)
+ppc_register_u_addr (int ustart, int regno)
{
- return (ustart + 4 * regmap[regnum]);
+ int u_addr = -1;
+
+ /* General purpose registers occupy 1 slot each in the buffer */
+ if (regno >= PPC_GP0_REGNUM && regno <= PPC_GPLAST_REGNUM )
+ u_addr = (ustart + (PT_R0 + regno) * 4);
+
+ /* Floating point regs: 2 slots each */
+ if (regno >= FP0_REGNUM && regno <= FPLAST_REGNUM)
+ u_addr = (ustart + (PT_FPR0 + (regno - FP0_REGNUM) * 2) * 4);
+
+ /* UISA special purpose registers: 1 slot each */
+ if (regno == PC_REGNUM)
+ u_addr = ustart + PT_NIP * 4;
+ if (regno == PPC_LR_REGNUM)
+ u_addr = ustart + PT_LNK * 4;
+ if (regno == PPC_CR_REGNUM)
+ u_addr = ustart + PT_CCR * 4;
+ if (regno == PPC_XER_REGNUM)
+ u_addr = ustart + PT_XER * 4;
+ if (regno == PPC_CTR_REGNUM)
+ u_addr = ustart + PT_CTR * 4;
+ if (regno == PPC_MQ_REGNUM)
+ u_addr = ustart + PT_MQ * 4;
+ if (regno == PPC_PS_REGNUM)
+ u_addr = ustart + PT_MSR * 4;
+
+ return u_addr;
}
void
-supply_gregset (gregset_t * gregsetp)
+supply_gregset (gdb_gregset_t *gregsetp)
{
int regi;
- register greg_t *regp = (greg_t *) gregsetp;
+ register elf_greg_t *regp = (elf_greg_t *) gregsetp;
for (regi = 0; regi < 32; regi++)
supply_register (regi, (char *) (regp + regi));
- for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++)
- supply_register (regi, (char *) (regp + regmap[regi]));
+ supply_register (PC_REGNUM, (char *) (regp + PT_NIP));
+ supply_register (PPC_LR_REGNUM, (char *) (regp + PT_LNK));
+ supply_register (PPC_CR_REGNUM, (char *) (regp + PT_CCR));
+ supply_register (PPC_XER_REGNUM, (char *) (regp + PT_XER));
+ supply_register (PPC_CTR_REGNUM, (char *) (regp + PT_CTR));
+ supply_register (PPC_MQ_REGNUM, (char *) (regp + PT_MQ));
+ supply_register (PPC_PS_REGNUM, (char *) (regp + PT_MSR));
}
void
-supply_fpregset (fpregset_t * fpregsetp)
+fill_gregset (gdb_gregset_t *gregsetp, int regno)
+{
+ int regi;
+ elf_greg_t *regp = (elf_greg_t *) gregsetp;
+
+ for (regi = 0; regi < 32; regi++)
+ {
+ if ((regno == -1) || regno == regi)
+ regcache_collect (regi, regp + PT_R0 + regi);
+ }
+
+ if ((regno == -1) || regno == PC_REGNUM)
+ regcache_collect (PC_REGNUM, regp + PT_NIP);
+ if ((regno == -1) || regno == PPC_LR_REGNUM)
+ regcache_collect (PPC_LR_REGNUM, regp + PT_LNK);
+ if ((regno == -1) || regno == PPC_CR_REGNUM)
+ regcache_collect (PPC_CR_REGNUM, regp + PT_CCR);
+ if ((regno == -1) || regno == PPC_XER_REGNUM)
+ regcache_collect (PPC_XER_REGNUM, regp + PT_XER);
+ if ((regno == -1) || regno == PPC_CTR_REGNUM)
+ regcache_collect (PPC_CTR_REGNUM, regp + PT_CTR);
+ if ((regno == -1) || regno == PPC_MQ_REGNUM)
+ regcache_collect (PPC_MQ_REGNUM, regp + PT_MQ);
+ if ((regno == -1) || regno == PPC_PS_REGNUM)
+ regcache_collect (PPC_PS_REGNUM, regp + PT_MSR);
+}
+
+void
+supply_fpregset (gdb_fpregset_t * fpregsetp)
{
int regi;
for (regi = 0; regi < 32; regi++)
supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
}
}
+
+/* Given a pointer to a floating point register set in /proc format
+ (fpregset_t *), update the register specified by REGNO from gdb's idea
+ of the current floating point register set. If REGNO is -1, update
+ them all. */
+
+void
+fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
+{
+ int regi;
+
+ for (regi = 0; regi < 32; regi++)
+ {
+ if ((regno == -1) || (regno == FP0_REGNUM + regi))
+ regcache_collect (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff