Move DWARF code to dwarf2/ subdirectory

This moves all the remaining DWARF code to the new dwarf2
subdirectory.  This is just a simple renaming, with updates to
includes as needed.

gdb/ChangeLog
2020-02-08  Tom Tromey  <tom@tromey.com>

	* dwarf2/expr.c: Rename from dwarf2expr.c.
	* dwarf2/expr.h: Rename from dwarf2expr.h.
	* dwarf2/frame-tailcall.c: Rename from dwarf2-frame-tailcall.c.
	* dwarf2/frame-tailcall.h: Rename from dwarf2-frame-tailcall.h.
	* dwarf2/frame.c: Rename from dwarf2-frame.c.
	* dwarf2/frame.h: Rename from dwarf2-frame.h.
	* dwarf2/index-cache.c: Rename from dwarf-index-cache.c.
	* dwarf2/index-cache.h: Rename from dwarf-index-cache.h.
	* dwarf2/index-common.c: Rename from dwarf-index-common.c.
	* dwarf2/index-common.h: Rename from dwarf-index-common.h.
	* dwarf2/index-write.c: Rename from dwarf-index-write.c.
	* dwarf2/index-write.h: Rename from dwarf-index-write.h.
	* dwarf2/loc.c: Rename from dwarf2loc.c.
	* dwarf2/loc.h: Rename from dwarf2loc.h.
	* dwarf2/read.c: Rename from dwarf2read.c.
	* dwarf2/read.h: Rename from dwarf2read.h.
	* dwarf2/abbrev.c, aarch64-tdep.c, alpha-tdep.c,
	amd64-darwin-tdep.c, arc-tdep.c, arm-tdep.c, bfin-tdep.c,
	compile/compile-c-symbols.c, compile/compile-cplus-symbols.c,
	compile/compile-loc2c.c, cris-tdep.c, csky-tdep.c, findvar.c,
	gdbtypes.c, guile/scm-type.c, h8300-tdep.c, hppa-bsd-tdep.c,
	hppa-linux-tdep.c, i386-darwin-tdep.c, i386-linux-tdep.c,
	i386-tdep.c, iq2000-tdep.c, m32c-tdep.c, m68hc11-tdep.c,
	m68k-tdep.c, microblaze-tdep.c, mips-tdep.c, mn10300-tdep.c,
	msp430-tdep.c, nds32-tdep.c, nios2-tdep.c, or1k-tdep.c,
	riscv-tdep.c, rl78-tdep.c, rs6000-tdep.c, rx-tdep.c, s12z-tdep.c,
	s390-tdep.c, score-tdep.c, sh-tdep.c, sparc-linux-tdep.c,
	sparc-tdep.c, sparc64-linux-tdep.c, sparc64-tdep.c, tic6x-tdep.c,
	tilegx-tdep.c, v850-tdep.c, xstormy16-tdep.c, xtensa-tdep.c:
	Update.
	* Makefile.in (COMMON_SFILES): Update.
	(HFILES_NO_SRCDIR): Update.

Change-Id: Ied9ce1436cd27ac4a4cffef10ec92e396f181928

1 files changed, 0 insertions, 266 deletions

diff --git a/gdb/dwarf2-frame.h b/gdb/dwarf2-frame.h
deleted file mode 100644
index a0ec361..0000000
--- a/gdb/dwarf2-frame.h
+++ /dev/null
@@ -1,266 +0,0 @@
-/* Frame unwinder for frames with DWARF Call Frame Information.
-
-   Copyright (C) 2003-2020 Free Software Foundation, Inc.
-
-   Contributed by Mark Kettenis.
-
-   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 3 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, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef DWARF2_FRAME_H
-#define DWARF2_FRAME_H 1
-
-struct gdbarch;
-struct objfile;
-struct frame_info;
-struct dwarf2_per_cu_data;
-struct agent_expr;
-struct axs_value;
-
-/* Register rule.  */
-
-enum dwarf2_frame_reg_rule
-{
-  /* Make certain that 0 maps onto the correct enum value; the
-     corresponding structure is being initialized using memset zero.
-     This indicates that CFI didn't provide any information at all
-     about a register, leaving how to obtain its value totally
-     unspecified.  */
-  DWARF2_FRAME_REG_UNSPECIFIED = 0,
-
-  /* The term "undefined" comes from the DWARF2 CFI spec which this
-     code is modeling; it indicates that the register's value is
-     "undefined".  GCC uses the less formal term "unsaved".  Its
-     definition is a combination of REG_UNDEFINED and REG_UNSPECIFIED.
-     The failure to differentiate the two helps explain a few problems
-     with the CFI generated by GCC.  */
-  DWARF2_FRAME_REG_UNDEFINED,
-  DWARF2_FRAME_REG_SAVED_OFFSET,
-  DWARF2_FRAME_REG_SAVED_REG,
-  DWARF2_FRAME_REG_SAVED_EXP,
-  DWARF2_FRAME_REG_SAME_VALUE,
-
-  /* These are defined in Dwarf3.  */
-  DWARF2_FRAME_REG_SAVED_VAL_OFFSET,
-  DWARF2_FRAME_REG_SAVED_VAL_EXP,
-
-  /* These aren't defined by the DWARF2 CFI specification, but are
-     used internally by GDB.  */
-  DWARF2_FRAME_REG_FN,		/* Call a registered function.  */
-  DWARF2_FRAME_REG_RA,		/* Return Address.  */
-  DWARF2_FRAME_REG_RA_OFFSET,	/* Return Address with offset.  */
-  DWARF2_FRAME_REG_CFA,		/* Call Frame Address.  */
-  DWARF2_FRAME_REG_CFA_OFFSET	/* Call Frame Address with offset.  */
-};
-
-/* Register state.  */
-
-struct dwarf2_frame_state_reg
-{
-  /* Each register save state can be described in terms of a CFA slot,
-     another register, or a location expression.  */
-  union {
-    LONGEST offset;
-    ULONGEST reg;
-    struct
-    {
-      const gdb_byte *start;
-      ULONGEST len;
-    } exp;
-    struct value *(*fn) (struct frame_info *this_frame, void **this_cache,
-			 int regnum);
-  } loc;
-  enum dwarf2_frame_reg_rule how;
-};
-
-enum cfa_how_kind
-{
-  CFA_UNSET,
-  CFA_REG_OFFSET,
-  CFA_EXP
-};
-
-struct dwarf2_frame_state_reg_info
-{
-  dwarf2_frame_state_reg_info () = default;
-  ~dwarf2_frame_state_reg_info ()
-  {
-    delete prev;
-  }
-
-  /* Copy constructor.  */
-  dwarf2_frame_state_reg_info (const dwarf2_frame_state_reg_info &src)
-    : reg (src.reg), cfa_offset (src.cfa_offset),
-      cfa_reg (src.cfa_reg), cfa_how (src.cfa_how), cfa_exp (src.cfa_exp),
-      prev (src.prev)
-  {
-  }
-
-  /* Assignment operator for both move-assignment and copy-assignment.  */
-  dwarf2_frame_state_reg_info&
-  operator= (dwarf2_frame_state_reg_info rhs)
-  {
-    swap (*this, rhs);
-    return *this;
-  }
-
-  /* Move constructor.  */
-  dwarf2_frame_state_reg_info (dwarf2_frame_state_reg_info &&rhs) noexcept
-    : reg (std::move (rhs.reg)), cfa_offset (rhs.cfa_offset),
-      cfa_reg (rhs.cfa_reg), cfa_how (rhs.cfa_how), cfa_exp (rhs.cfa_exp),
-      prev (rhs.prev)
-  {
-    rhs.prev = nullptr;
-  }
-
-  /* If necessary, enlarge the register set to hold NUM_REGS_REQUESTED
-     registers.  */
-  void alloc_regs (int num_regs_requested)
-  {
-    gdb_assert (num_regs_requested > 0);
-
-    if (num_regs_requested <= reg.size ())
-      return;
-
-    reg.resize (num_regs_requested);
-  }
-
-  std::vector<struct dwarf2_frame_state_reg> reg;
-
-  LONGEST cfa_offset = 0;
-  ULONGEST cfa_reg = 0;
-  enum cfa_how_kind cfa_how = CFA_UNSET;
-  const gdb_byte *cfa_exp = NULL;
-
-  /* Used to implement DW_CFA_remember_state.  */
-  struct dwarf2_frame_state_reg_info *prev = NULL;
-
-private:
-  friend void swap (dwarf2_frame_state_reg_info& lhs,
-		    dwarf2_frame_state_reg_info& rhs)
-  {
-    using std::swap;
-
-    swap (lhs.reg, rhs.reg);
-    swap (lhs.cfa_offset, rhs.cfa_offset);
-    swap (lhs.cfa_reg, rhs.cfa_reg);
-    swap (lhs.cfa_how, rhs.cfa_how);
-    swap (lhs.cfa_exp, rhs.cfa_exp);
-    swap (lhs.prev, rhs.prev);
-  }
-};
-
-struct dwarf2_cie;
-
-/* Structure describing a frame state.  */
-
-struct dwarf2_frame_state
-{
-  dwarf2_frame_state (CORE_ADDR pc, struct dwarf2_cie *cie);
-
-  /* Each register save state can be described in terms of a CFA slot,
-     another register, or a location expression.  */
-  struct dwarf2_frame_state_reg_info regs {};
-
-  /* The PC described by the current frame state.  */
-  CORE_ADDR pc;
-
-  /* Initial register set from the CIE.
-     Used to implement DW_CFA_restore.  */
-  struct dwarf2_frame_state_reg_info initial {};
-
-  /* The information we care about from the CIE.  */
-  const LONGEST data_align;
-  const ULONGEST code_align;
-  const ULONGEST retaddr_column;
-
-  /* Flags for known producer quirks.  */
-
-  /* The ARM compilers, in DWARF2 mode, assume that DW_CFA_def_cfa
-     and DW_CFA_def_cfa_offset takes a factored offset.  */
-  bool armcc_cfa_offsets_sf = false;
-
-  /* The ARM compilers, in DWARF2 or DWARF3 mode, may assume that
-     the CFA is defined as REG - OFFSET rather than REG + OFFSET.  */
-  bool armcc_cfa_offsets_reversed = false;
-};
-
-/* When this is true the DWARF frame unwinders can be used if they are
-   registered with the gdbarch.  Not all architectures can or do use the
-   DWARF unwinders.  Setting this to true on a target that does not
-   otherwise support the DWARF unwinders has no effect.  */
-extern bool dwarf2_frame_unwinders_enabled_p;
-
-/* Set the architecture-specific register state initialization
-   function for GDBARCH to INIT_REG.  */
-
-extern void dwarf2_frame_set_init_reg (struct gdbarch *gdbarch,
-				       void (*init_reg) (struct gdbarch *, int,
-					     struct dwarf2_frame_state_reg *,
-					     struct frame_info *));
-
-/* Set the architecture-specific signal trampoline recognition
-   function for GDBARCH to SIGNAL_FRAME_P.  */
-
-extern void
-  dwarf2_frame_set_signal_frame_p (struct gdbarch *gdbarch,
-				   int (*signal_frame_p) (struct gdbarch *,
-							  struct frame_info *));
-
-/* Set the architecture-specific adjustment of .eh_frame and .debug_frame
-   register numbers.  */
-
-extern void
-  dwarf2_frame_set_adjust_regnum (struct gdbarch *gdbarch,
-				  int (*adjust_regnum) (struct gdbarch *,
-							int, int));
-
-/* Append the DWARF-2 frame unwinders to GDBARCH's list.  */
-
-void dwarf2_append_unwinders (struct gdbarch *gdbarch);
-
-/* Return the frame base methods for the function that contains PC, or
-   NULL if it can't be handled by the DWARF CFI frame unwinder.  */
-
-extern const struct frame_base *
-  dwarf2_frame_base_sniffer (struct frame_info *this_frame);
-
-/* Compute the DWARF CFA for a frame.  */
-
-CORE_ADDR dwarf2_frame_cfa (struct frame_info *this_frame);
-
-/* Find the CFA information for PC.
-
-   Return 1 if a register is used for the CFA, or 0 if another
-   expression is used.  Throw an exception on error.
-
-   GDBARCH is the architecture to use.
-   DATA is the per-CU data.
-
-   REGNUM_OUT is an out parameter that is set to the register number.
-   OFFSET_OUT is the offset to use from this register.
-   These are only filled in when 1 is returned.
-
-   TEXT_OFFSET_OUT, CFA_START_OUT, and CFA_END_OUT describe the CFA
-   in other cases.  These are only used when 0 is returned.  */
-
-extern int dwarf2_fetch_cfa_info (struct gdbarch *gdbarch, CORE_ADDR pc,
-				  struct dwarf2_per_cu_data *data,
-				  int *regnum_out, LONGEST *offset_out,
-				  CORE_ADDR *text_offset_out,
-				  const gdb_byte **cfa_start_out,
-				  const gdb_byte **cfa_end_out);
-
-#endif /* dwarf2-frame.h */