Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / m32r / include / asm / flat.h

diff --git a/kernel/arch/m32r/include/asm/flat.h b/kernel/arch/m32r/include/asm/flat.h
new file mode 100644 (file)
index 0000000..5d711c4
--- /dev/null
+++ b/kernel/arch/m32r/include/asm/flat.h
@@ -0,0 +1,145 @@
+/*
+ * include/asm-m32r/flat.h
+ *
+ * uClinux flat-format executables
+ *
+ * Copyright (C) 2004  Kazuhiro Inaoka
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive for
+ * more details.
+ */
+#ifndef __ASM_M32R_FLAT_H
+#define __ASM_M32R_FLAT_H
+
+#define        flat_argvp_envp_on_stack()              0
+#define        flat_old_ram_flag(flags)                (flags)
+#define        flat_set_persistent(relval, p)          0
+#define        flat_reloc_valid(reloc, size)           \
+       (((reloc) - textlen_for_m32r_lo16_data) <= (size))
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
+       m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
+
+#define flat_put_addr_at_rp(rp, addr, relval) \
+       m32r_flat_put_addr_at_rp(rp, addr, relval)
+
+/* Convert a relocation entry into an address.  */
+static inline unsigned long
+flat_get_relocate_addr (unsigned long relval)
+{
+        return relval & 0x00ffffff; /* Mask out top 8-bits */
+}
+
+#define        flat_m32r_get_reloc_type(relval)        ((relval) >> 24)
+
+#define M32R_SETH_OPCODE       0xd0c00000 /* SETH instruction code */
+
+#define FLAT_M32R_32           0x00    /* 32bits reloc */
+#define FLAT_M32R_24           0x01    /* unsigned 24bits reloc */
+#define FLAT_M32R_16           0x02    /* 16bits reloc */
+#define FLAT_M32R_LO16         0x03    /* signed low 16bits reloc (low()) */
+#define FLAT_M32R_LO16_DATA    0x04    /* signed low 16bits reloc (low())
+                                          for a symbol in .data section */
+                                       /* High 16bits of an address used
+                                          when the lower 16bbits are treated
+                                          as unsigned.
+                                           To create SETH instruction only.
+                                          0x1X: X means a number of register.
+                                          0x10 - 0x3F are reserved. */
+#define FLAT_M32R_HI16_ULO     0x10    /* reloc for SETH Rn,#high(imm16) */
+                                       /* High 16bits of an address used
+                                          when the lower 16bbits are treated
+                                          as signed.
+                                           To create SETH instruction only.
+                                          0x2X: X means a number of register.
+                                          0x20 - 0x4F are reserved. */
+#define FLAT_M32R_HI16_SLO     0x20    /* reloc for SETH Rn,#shigh(imm16) */
+
+static unsigned long textlen_for_m32r_lo16_data = 0;
+
+static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
+                                                        unsigned long relval,
+                                                       unsigned long textlen)
+{
+        unsigned int reloc = flat_m32r_get_reloc_type (relval);
+       textlen_for_m32r_lo16_data = 0;
+       if (reloc & 0xf0) {
+               unsigned long addr = htonl(*rp);
+               switch (reloc & 0xf0)
+               {
+               case FLAT_M32R_HI16_ULO:
+               case FLAT_M32R_HI16_SLO:
+                       if (addr == 0) {
+                               /* put "seth Rn,#0x0" instead of 0 (addr). */
+                               *rp = (M32R_SETH_OPCODE | ((reloc & 0x0f)<<24));
+                       }
+                       return addr;
+               default:
+                       break;
+               }
+       } else {
+               switch (reloc)
+               {
+               case FLAT_M32R_LO16:
+                       return htonl(*rp) & 0xFFFF;
+               case FLAT_M32R_LO16_DATA:
+                        /* FIXME: The return value will decrease by textlen
+                          at m32r_flat_put_addr_at_rp () */
+                       textlen_for_m32r_lo16_data = textlen;
+                       return (htonl(*rp) & 0xFFFF) + textlen;
+               case FLAT_M32R_16:
+                       return htons(*(unsigned short *)rp) & 0xFFFF;
+               case FLAT_M32R_24:
+                       return htonl(*rp) & 0xFFFFFF;
+               case FLAT_M32R_32:
+                       return htonl(*rp);
+               default:
+                       break;
+               }
+       }
+       return ~0;      /* bogus value */
+}
+
+static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
+                                            unsigned long addr,
+                                             unsigned long relval)
+{
+        unsigned int reloc = flat_m32r_get_reloc_type (relval);
+       if (reloc & 0xf0) {
+               unsigned long Rn = reloc & 0x0f; /* get a number of register */
+               Rn <<= 24; /* 0x0R000000 */
+               reloc &= 0xf0;
+               switch (reloc)
+               {
+               case FLAT_M32R_HI16_ULO: /* To create SETH Rn,#high(imm16) */
+                       *rp = (M32R_SETH_OPCODE | Rn
+                              | ((addr >> 16) & 0xFFFF));
+                       break;
+               case FLAT_M32R_HI16_SLO: /* To create SETH Rn,#shigh(imm16) */
+                       *rp = (M32R_SETH_OPCODE | Rn
+                              | (((addr >> 16) + ((addr & 0x8000) ? 1 : 0))
+                                 & 0xFFFF));
+                       break;
+               }
+       } else {
+               switch (reloc) {
+               case FLAT_M32R_LO16_DATA:
+                       addr -= textlen_for_m32r_lo16_data;
+                       textlen_for_m32r_lo16_data = 0;
+               case FLAT_M32R_LO16:
+                       *rp = (htonl(*rp) & 0xFFFF0000) | (addr & 0xFFFF);
+                       break;
+               case FLAT_M32R_16:
+                       *(unsigned short *)rp = addr & 0xFFFF;
+                       break;
+               case FLAT_M32R_24:
+                       *rp = (htonl(*rp) & 0xFF000000) | (addr & 0xFFFFFF);
+                       break;
+               case FLAT_M32R_32:
+                       *rp = addr;
+                       break;
+               }
+       }
+}
+
+#endif /* __ASM_M32R_FLAT_H */