Update ELF Tool Chain to upstream rev 3400

Some notable improvements include:

readelf:
- Add AArch64 relocation definitions.
- Report value of unknown relocation types.

elfcopy:
- Consider symbols with STB_GNU_UNIQUE binding as global symbols.
- Fixed support for VMA adjustment for loadable sections found
  in relocatable objects.
- Handle nameless global symbols.
- Improve wildcard matching for !-prefixed symbols.
- Add PE/COFF support.

elfdump:
- Improve section type reporting.
- Add MIPS-specific section types.

This update also includes a significant number of bug fixes.

PR:		207091 [exp-run]
Sponsored by:	The FreeBSD Foundation

1 files changed, 13 insertions, 1 deletions

diff --git a/contrib/elftoolchain/libdwarf/libdwarf_rw.c b/contrib/elftoolchain/libdwarf/libdwarf_rw.c
index 8cb4551..f0286d5 100644
--- a/contrib/elftoolchain/libdwarf/libdwarf_rw.c
+++ b/contrib/elftoolchain/libdwarf/libdwarf_rw.c
@@ -27,7 +27,7 @@
 
 #include "_libdwarf.h"
 
-ELFTC_VCSID("$Id: libdwarf_rw.c 2952 2013-06-26 19:09:40Z kaiwang27 $");
+ELFTC_VCSID("$Id: libdwarf_rw.c 3286 2015-12-31 16:45:46Z emaste $");
 
 uint64_t
 _dwarf_read_lsb(uint8_t *data, uint64_t *offsetp, int bytes_to_read)
@@ -42,10 +42,13 @@ _dwarf_read_lsb(uint8_t *data, uint64_t *offsetp, int bytes_to_read)
 	case 8:
 		ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
 		ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
+		/* FALLTHROUGH */
 	case 4:
 		ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
+		/* FALLTHROUGH */
 	case 2:
 		ret |= ((uint64_t) src[1]) << 8;
+		/* FALLTHROUGH */
 	case 1:
 		ret |= src[0];
 		break;
@@ -71,10 +74,13 @@ _dwarf_decode_lsb(uint8_t **data, int bytes_to_read)
 	case 8:
 		ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
 		ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
+		/* FALLTHROUGH */
 	case 4:
 		ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
+		/* FALLTHROUGH */
 	case 2:
 		ret |= ((uint64_t) src[1]) << 8;
+		/* FALLTHROUGH */
 	case 1:
 		ret |= src[0];
 		break;
@@ -171,11 +177,14 @@ _dwarf_write_lsb(uint8_t *data, uint64_t *offsetp, uint64_t value,
 		dst[6] = (value >> 48) & 0xff;
 		dst[5] = (value >> 40) & 0xff;
 		dst[4] = (value >> 32) & 0xff;
+		/* FALLTHROUGH */
 	case 4:
 		dst[3] = (value >> 24) & 0xff;
 		dst[2] = (value >> 16) & 0xff;
+		/* FALLTHROUGH */
 	case 2:
 		dst[1] = (value >> 8) & 0xff;
+		/* FALLTHROUGH */
 	case 1:
 		dst[0] = value & 0xff;
 		break;
@@ -222,13 +231,16 @@ _dwarf_write_msb(uint8_t *data, uint64_t *offsetp, uint64_t value,
 		dst[5] = (value >> 16) & 0xff;
 		dst[4] = (value >> 24) & 0xff;
 		value >>= 32;
+		/* FALLTHROUGH */
 	case 4:
 		dst[3] = value & 0xff;
 		dst[2] = (value >> 8) & 0xff;
 		value >>= 16;
+		/* FALLTHROUGH */
 	case 2:
 		dst[1] = value & 0xff;
 		value >>= 8;
+		/* FALLTHROUGH */
 	case 1:
 		dst[0] = value & 0xff;
 		break;