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Remove regmap from i386-linux-nat.c.
2010-04-22 H.J. Lu <hongjiu.lu@intel.com> * i386-linux-nat.c (regmap): Removed. (fetch_register): Replace regmap with i386_linux_gregset_reg_offset. (store_register): Likewise. (supply_gregset): Likewise. (fill_gregset): Likewise. * i386-linux-tdep.c (i386_linux_gregset_reg_offset): Make it global. * i386-linux-tdep.h (i386_linux_gregset_reg_offset): New.
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H.J. Lu
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f56dcb8879
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@ -1,3 +1,17 @@
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2010-04-22 H.J. Lu <hongjiu.lu@intel.com>
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* i386-linux-nat.c (regmap): Removed.
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(fetch_register): Replace regmap with
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i386_linux_gregset_reg_offset.
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(store_register): Likewise.
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(supply_gregset): Likewise.
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(fill_gregset): Likewise.
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* i386-linux-tdep.c (i386_linux_gregset_reg_offset): Make it
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global.
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* i386-linux-tdep.h (i386_linux_gregset_reg_offset): New.
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2010-04-22 Chris Moller <cmoller@redhat.com>
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* cp-valprint.c (cp_print_value_fields): Replaced obstack_base()
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@ -99,26 +99,6 @@ static int have_ptrace_getregset = -1;
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those names are now used for the register sets used in the
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`mcontext_t' type, and have a different size and layout. */
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/* Mapping between the general-purpose registers in `struct user'
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format and GDB's register array layout. */
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static int regmap[] =
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{
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EAX, ECX, EDX, EBX,
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UESP, EBP, ESI, EDI,
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EIP, EFL, CS, SS,
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DS, ES, FS, GS,
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-1, -1, -1, -1, /* st0, st1, st2, st3 */
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-1, -1, -1, -1, /* st4, st5, st6, st7 */
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-1, -1, -1, -1, /* fctrl, fstat, ftag, fiseg */
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-1, -1, -1, -1, /* fioff, foseg, fooff, fop */
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-1, -1, -1, -1, /* xmm0, xmm1, xmm2, xmm3 */
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-1, -1, -1, -1, /* xmm4, xmm5, xmm6, xmm6 */
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-1, /* mxcsr */
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-1, -1, -1, -1, /* ymm0h, ymm1h, ymm2h, ymm3h */
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-1, -1, -1, -1, /* ymm4h, ymm5h, ymm6h, ymm6h */
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ORIG_EAX
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};
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/* Which ptrace request retrieves which registers?
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These apply to the corresponding SET requests as well. */
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@ -168,7 +148,7 @@ fetch_register (struct regcache *regcache, int regno)
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int val;
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gdb_assert (!have_ptrace_getregs);
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if (regmap[regno] == -1)
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if (i386_linux_gregset_reg_offset[regno] == -1)
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{
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regcache_raw_supply (regcache, regno, NULL);
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return;
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@ -180,7 +160,8 @@ fetch_register (struct regcache *regcache, int regno)
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tid = PIDGET (inferior_ptid); /* Not a threaded program. */
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errno = 0;
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val = ptrace (PTRACE_PEEKUSER, tid, 4 * regmap[regno], 0);
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val = ptrace (PTRACE_PEEKUSER, tid,
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i386_linux_gregset_reg_offset[regno], 0);
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if (errno != 0)
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error (_("Couldn't read register %s (#%d): %s."),
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gdbarch_register_name (get_regcache_arch (regcache), regno),
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@ -198,7 +179,7 @@ store_register (const struct regcache *regcache, int regno)
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int val;
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gdb_assert (!have_ptrace_getregs);
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if (regmap[regno] == -1)
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if (i386_linux_gregset_reg_offset[regno] == -1)
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return;
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/* GNU/Linux LWP ID's are process ID's. */
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@ -208,7 +189,8 @@ store_register (const struct regcache *regcache, int regno)
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errno = 0;
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regcache_raw_collect (regcache, regno, &val);
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ptrace (PTRACE_POKEUSER, tid, 4 * regmap[regno], val);
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ptrace (PTRACE_POKEUSER, tid,
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i386_linux_gregset_reg_offset[regno], val);
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if (errno != 0)
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error (_("Couldn't write register %s (#%d): %s."),
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gdbarch_register_name (get_regcache_arch (regcache), regno),
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@ -225,16 +207,17 @@ store_register (const struct regcache *regcache, int regno)
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void
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supply_gregset (struct regcache *regcache, const elf_gregset_t *gregsetp)
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{
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const elf_greg_t *regp = (const elf_greg_t *) gregsetp;
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const gdb_byte *regp = (const gdb_byte *) gregsetp;
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int i;
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for (i = 0; i < I386_NUM_GREGS; i++)
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regcache_raw_supply (regcache, i, regp + regmap[i]);
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regcache_raw_supply (regcache, i,
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regp + i386_linux_gregset_reg_offset[i]);
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if (I386_LINUX_ORIG_EAX_REGNUM
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< gdbarch_num_regs (get_regcache_arch (regcache)))
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regcache_raw_supply (regcache, I386_LINUX_ORIG_EAX_REGNUM,
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regp + ORIG_EAX);
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regp + i386_linux_gregset_reg_offset[I386_LINUX_ORIG_EAX_REGNUM]);
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}
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/* Fill register REGNO (if it is a general-purpose register) in
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@ -245,18 +228,19 @@ void
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fill_gregset (const struct regcache *regcache,
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elf_gregset_t *gregsetp, int regno)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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gdb_byte *regp = (gdb_byte *) gregsetp;
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int i;
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for (i = 0; i < I386_NUM_GREGS; i++)
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if (regno == -1 || regno == i)
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regcache_raw_collect (regcache, i, regp + regmap[i]);
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regcache_raw_collect (regcache, i,
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regp + i386_linux_gregset_reg_offset[i]);
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if ((regno == -1 || regno == I386_LINUX_ORIG_EAX_REGNUM)
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&& I386_LINUX_ORIG_EAX_REGNUM
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< gdbarch_num_regs (get_regcache_arch (regcache)))
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regcache_raw_collect (regcache, I386_LINUX_ORIG_EAX_REGNUM,
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regp + ORIG_EAX);
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regp + i386_linux_gregset_reg_offset[I386_LINUX_ORIG_EAX_REGNUM]);
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}
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#ifdef HAVE_PTRACE_GETREGS
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@ -529,7 +529,7 @@ i386_linux_get_syscall_number (struct gdbarch *gdbarch,
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format and GDB's register cache layout. */
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/* From <sys/reg.h>. */
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static int i386_linux_gregset_reg_offset[] =
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int i386_linux_gregset_reg_offset[] =
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{
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6 * 4, /* %eax */
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1 * 4, /* %ecx */
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@ -65,4 +65,6 @@ extern struct target_desc *tdesc_i386_avx_linux;
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the process/thread is in. */
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#define I386_LINUX_XSAVE_XCR0_OFFSET 464
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extern int i386_linux_gregset_reg_offset[];
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#endif /* i386-linux-tdep.h */
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