Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-v850/flat.h b/include/asm-v850/flat.h
new file mode 100644
index 0000000..3888f59
--- /dev/null
+++ b/include/asm-v850/flat.h
@@ -0,0 +1,131 @@
+/*
+ * include/asm-v850/flat.h -- uClinux flat-format executables
+ *
+ * Copyright (C) 2002,03 NEC Electronics Corporation
+ * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef __V850_FLAT_H__
+#define __V850_FLAT_H__
+
+/* The amount by which a relocation can exceed the program image limits
+ without being regarded as an error. On the v850, the relocations of
+ some base-pointers can be offset by 0x8000 (to allow better usage of the
+ space offered by 16-bit signed offsets -- in most cases the offsets used
+ with such a base-pointer will be negative). */
+
+#define flat_reloc_valid(reloc, size) ((reloc) <= (size + 0x8000))
+
+#define flat_stack_align(sp) /* nothing needed */
+#define flat_argvp_envp_on_stack() 0
+#define flat_old_ram_flag(flags) (flags)
+
+/* We store the type of relocation in the top 4 bits of the `relval.' */
+
+/* Convert a relocation entry into an address. */
+static inline unsigned long
+flat_get_relocate_addr (unsigned long relval)
+{
+ return relval & 0x0fffffff; /* Mask out top 4-bits */
+}
+
+#define flat_v850_get_reloc_type(relval) ((relval) >> 28)
+
+#define FLAT_V850_R_32 0 /* Normal 32-bit reloc */
+#define FLAT_V850_R_HI16S_LO15 1 /* High 16-bits + signed 15-bit low field */
+#define FLAT_V850_R_HI16S_LO16 2 /* High 16-bits + signed 16-bit low field */
+
+/* Extract the address to be relocated from the symbol reference at RP;
+ RELVAL is the raw relocation-table entry from which RP is derived.
+ For the v850, RP should always be half-word aligned. */
+static inline unsigned long flat_get_addr_from_rp (unsigned long *rp,
+ unsigned long relval,
+ unsigned long flags)
+{
+ short *srp = (short *)rp;
+
+ switch (flat_v850_get_reloc_type (relval))
+ {
+ case FLAT_V850_R_32:
+ /* Simple 32-bit address. */
+ return srp[0] | (srp[1] << 16);
+
+ case FLAT_V850_R_HI16S_LO16:
+ /* The high and low halves of the address are in the 16
+ bits at RP, and the 2nd word of the 32-bit instruction
+ following that, respectively. The low half is _signed_
+ so we have to sign-extend it and add it to the upper
+ half instead of simply or-ing them together.
+
+ Unlike most relocated address, this one is stored in
+ native (little-endian) byte-order to avoid problems with
+ trashing the low-order bit, so we have to convert to
+ network-byte-order before returning, as that's what the
+ caller expects. */
+ return htonl ((srp[0] << 16) + srp[2]);
+
+ case FLAT_V850_R_HI16S_LO15:
+ /* The high and low halves of the address are in the 16
+ bits at RP, and the upper 15 bits of the 2nd word of the
+ 32-bit instruction following that, respectively. The
+ low half is _signed_ so we have to sign-extend it and
+ add it to the upper half instead of simply or-ing them
+ together. The lowest bit is always zero.
+
+ Unlike most relocated address, this one is stored in
+ native (little-endian) byte-order to avoid problems with
+ trashing the low-order bit, so we have to convert to
+ network-byte-order before returning, as that's what the
+ caller expects. */
+ return htonl ((srp[0] << 16) + (srp[2] & ~0x1));
+
+ default:
+ return ~0; /* bogus value */
+ }
+}
+
+/* Insert the address ADDR into the symbol reference at RP;
+ RELVAL is the raw relocation-table entry from which RP is derived.
+ For the v850, RP should always be half-word aligned. */
+static inline void flat_put_addr_at_rp (unsigned long *rp, unsigned long addr,
+ unsigned long relval)
+{
+ short *srp = (short *)rp;
+
+ switch (flat_v850_get_reloc_type (relval)) {
+ case FLAT_V850_R_32:
+ /* Simple 32-bit address. */
+ srp[0] = addr & 0xFFFF;
+ srp[1] = (addr >> 16);
+ break;
+
+ case FLAT_V850_R_HI16S_LO16:
+ /* The high and low halves of the address are in the 16
+ bits at RP, and the 2nd word of the 32-bit instruction
+ following that, respectively. The low half is _signed_
+ so we must carry its sign bit to the upper half before
+ writing the upper half. */
+ srp[0] = (addr >> 16) + ((addr >> 15) & 0x1);
+ srp[2] = addr & 0xFFFF;
+ break;
+
+ case FLAT_V850_R_HI16S_LO15:
+ /* The high and low halves of the address are in the 16
+ bits at RP, and the upper 15 bits of the 2nd word of the
+ 32-bit instruction following that, respectively. The
+ low half is _signed_ so we must carry its sign bit to
+ the upper half before writing the upper half. The
+ lowest bit we preserve from the existing instruction. */
+ srp[0] = (addr >> 16) + ((addr >> 15) & 0x1);
+ srp[2] = (addr & 0xFFFE) | (srp[2] & 0x1);
+ break;
+ }
+}
+
+#endif /* __V850_FLAT_H__ */