bfd/

	* Makefile.am (BFD32_LIBS): Add compress.lo.
	(BFD32_LIBS_CFILES): Add compress.c.
	(BFD_H_FILES): Likewise.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* config.in: Add HAVE_ZLIB_H
	* configure.in: Add test for libz and zlib.h
	* configure: Regenerate.
	* dwarf2.c (read_section): New function.
	(read_indirect_string): Call new function read_section.
	(read_abbrevs): Likewise.
	(decode_line_info): Likewise.
	(read_debug_ranges): Likewise.
	(find_line): Call new function read_section when just one
	.zdebug_info section is found, otherwise read and compress
	multiple sections.
	(_bfd_dwarf2_cleanup_debug_info): Free sec_info_ptr.
	* elf.c (_bfd_elf_make_section_from_shdr): Add zdebug prefix.
	(special_sections_z): New struct.
	(special_sections): Refer to special_sections_z.
	* elfxx-mips.c (_bfd_mips_elf_section_from_shdr): Recognize
	sections named .zdebug_*.
	(_bfd_mips_elf_fake_sections): Likewise.
	* compress.c: New file.
	(bfd_uncompress_section_contents): New function.
bfd/doc/
	* Makefile.am (BFD_H_DEP): Add ../compress.c.
	* Makefile.in: Regenerate.
binutils/
	* config.in: Add HAVE_ZLIB_H
	* configure.in: Add test for libz and zlib.h
	* configure: Regenerate.
	* dwarf.c (debug_displays): Add .zdebug_* strings.
	* dwarf.h (struct dwarf_section): Add fields uncompressed_namd
	and compressed_name.
	* objdump.c (load_debug_section): Call
	bfd_uncompress_section_contents when loading a compressed
	section.
	(dump_dwarf_section): Recognize compressed section name.
	(mach_o_dwarf_sections): Rename as
	mach_o_uncompressed_dwarf_sections.
	(mach_o_compressed_dwarf_sections): New variable.
	(generic_dwarf_section): Rename as
	generic_uncompressed_dwarf_sections.
	(generic_compressed_dwarf_sections): New variable.
	(check_mach_o_dwarf): Save and restore
	mach_o_compressed_dwarf_sections.
	* readelf.c: Add #include for config.h and zlib.h
	(process_section_headers): Recognize compressed section name.
	(uncompress_section_contents): New function.
	(load_debug_section): Call uncompress_section_contents when
	loading a compressed section.
	(display_debug_section): Recognize compressed section name.
binutils/testsuite:
	* binutils-all/objdump.exp: Add test for objdump -s on a file
	with a compressed debug section.  Add test for objdump -W on a
	file that contains a compressed debug section.
	* binutils-all/readelf.exp: Call readelf_compressed_wa_test.
	(readelf_compressed_wa_test): New function.
	* binutils-all/dw2-compressed.S: New file.
	* binutils-all/objdump.W: New file.
	* binutils-all/objdump.s: New file.
	* binutils-all/readelf.wa: New file.

7 files changed, 472 insertions, 0 deletions

diff --git a/binutils/testsuite/ChangeLog b/binutils/testsuite/ChangeLog
index 83d79d5..3fb1c55 100644
--- a/binutils/testsuite/ChangeLog
+++ b/binutils/testsuite/ChangeLog
@@ -1,3 +1,15 @@
+2008-07-09  Craig Silverstein  <csilvers@google.com>
+
+	* binutils-all/objdump.exp: Add test for objdump -s on a file
+	with a compressed debug section.  Add test for objdump -W on a
+	file that contains a compressed debug section.
+	* binutils-all/readelf.exp: Call readelf_compressed_wa_test.
+	(readelf_compressed_wa_test): New function.
+	* binutils-all/dw2-compressed.S: New file.
+	* binutils-all/objdump.W: New file.
+	* binutils-all/objdump.s: New file.
+	* binutils-all/readelf.wa: New file.
+
 2008-07-08  Kai Tietz  <kai.tietz@onevision.com>
 
 	* binutils-all/objcopy.exp (copy_setup): Check if host-triplet
diff --git a/binutils/testsuite/binutils-all/dw2-compressed.S b/binutils/testsuite/binutils-all/dw2-compressed.S
new file mode 100644
index 0000000..f11d68f
--- /dev/null
+++ b/binutils/testsuite/binutils-all/dw2-compressed.S
@@ -0,0 +1,218 @@
+/* This testcase is derived from a similar test in GDB.
+
+   Copyright 2008 Free Software Foundation, Inc.
+
+   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/>.  */
+
+/* This tests that gdb can read compressed sections.  The contents
+   are a basic assembly file, but the .debug_abbrev section has been
+   comrpessed using zlib.  */
+
+/* Dummy function to provide debug information for.  */
+
+	.text
+	.globl _start
+_start:
+	.int 0
+.Lbegin_text1:
+	.globl func_cu1
+	.type func_cu1, %function
+func_cu1:
+.Lbegin_func_cu1:
+	.int 0
+.Lend_func_cu1:
+	.size func_cu1, .-func_cu1
+.Lend_text1:
+
+/* Debug information */
+
+	.section .debug_info
+.Lcu1_begin:
+	/* CU header */
+	.4byte	.Lcu1_end - .Lcu1_start		/* Length of Compilation Unit */
+.Lcu1_start:
+	.2byte	2				/* DWARF Version */
+	.4byte	.Labbrev1_begin			/* Offset into abbrev section */
+	.byte	4				/* Pointer size */
+
+	/* CU die */
+	.uleb128 1				/* Abbrev: DW_TAG_compile_unit */
+	.4byte	.Lline1_begin			/* DW_AT_stmt_list */
+	.4byte	.Lend_text1			/* DW_AT_high_pc */
+	.4byte	.Lbegin_text1			/* DW_AT_low_pc */
+	.ascii	"file1.txt\0"			/* DW_AT_name */
+	.ascii	"GNU C 3.3.3\0"			/* DW_AT_producer */
+	.byte	1				/* DW_AT_language (C) */
+
+	/* func_cu1 */
+	.uleb128	2			/* Abbrev: DW_TAG_subprogram */
+	.byte		1			/* DW_AT_external */
+	.byte		1			/* DW_AT_decl_file */
+	.byte		2			/* DW_AT_decl_line */
+	.ascii		"func_cu1\0"		/* DW_AT_name */
+	.4byte		.Ltype_int-.Lcu1_begin	/* DW_AT_type */
+	.4byte		.Lbegin_func_cu1	/* DW_AT_low_pc */
+	.4byte		.Lend_func_cu1		/* DW_AT_high_pc */
+	.byte		1			/* DW_AT_frame_base: length */
+	.byte		0x55			/* DW_AT_frame_base: DW_OP_reg5 */
+
+.Ltype_int:
+	.uleb128	3			/* Abbrev: DW_TAG_base_type */
+	.ascii		"int\0"			/* DW_AT_name */
+	.byte		4			/* DW_AT_byte_size */
+	.byte		5			/* DW_AT_encoding */
+
+	.byte		0			/* End of children of CU */
+
+.Lcu1_end:
+
+/* Line table */
+	.section .debug_line
+.Lline1_begin:
+	.4byte		.Lline1_end - .Lline1_start	/* Initial length */
+.Lline1_start:
+	.2byte		2			/* Version */
+	.4byte		.Lline1_lines - .Lline1_hdr	/* header_length */
+.Lline1_hdr:
+	.byte		1			/* Minimum insn length */
+	.byte		1			/* default_is_stmt */
+	.byte		1			/* line_base */
+ 	.byte		1			/* line_range */
+	.byte		0x10			/* opcode_base */
+
+	/* Standard lengths */
+	.byte		0
+	.byte		1
+	.byte		1
+	.byte		1
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		0
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		0
+
+	/* Include directories */
+	.byte		0
+
+	/* File names */
+	.ascii		"file1.txt\0"
+	.uleb128	0
+	.uleb128	0
+	.uleb128	0
+
+	.byte		0
+
+.Lline1_lines:
+	.byte		0	/* DW_LNE_set_address */
+	.uleb128	5
+	.byte		2
+	.4byte		.Lbegin_func_cu1
+
+	.byte		3	/* DW_LNS_advance_line */
+	.sleb128	3	/* ... to 4 */
+
+	.byte		1	/* DW_LNS_copy */
+
+	.byte		1	/* DW_LNS_copy (second time as an end-of-prologue marker) */
+
+	.byte		0	/* DW_LNE_set_address */
+	.uleb128	5
+	.byte		2
+	.4byte		.Lend_func_cu1
+
+	.byte		0	/* DW_LNE_end_of_sequence */
+	.uleb128	1
+	.byte		1
+
+.Lline1_end:
+
+/* Abbrev table -- compressed */
+	.section .zdebug_abbrev
+.Labbrev1_begin:
+	.ascii		"ZLIB"
+	.4byte		0
+	.2byte		0
+	.byte		0
+	.byte		51
+	.byte		0x78
+	.byte		0x5e
+	.byte		0x63
+	.byte		0x14
+	.byte		0x64
+	.byte		0x14
+	.byte		0x60
+	.byte		0x13
+	.byte		0x62
+	.byte		0x14
+	.byte		0x64
+	.byte		0x64
+	.byte		0xe6
+	.byte		0x50
+	.byte		0xe5
+	.byte		0x10
+	.byte		0xe6
+	.byte		0x66
+	.byte		0x60
+	.byte		0x60
+	.byte		0xd2
+	.byte		0x63
+	.byte		0xb0
+	.byte		0xe7
+	.byte		0xb1
+	.byte		0xe2
+	.byte		0xb6
+	.byte		0xe6
+	.byte		0x66
+	.byte		0xe6
+	.byte		0xf0
+	.byte		0x14
+	.byte		0x16
+	.byte		0x64
+	.byte		0x14
+	.byte		0x62
+	.byte		0x74
+	.byte		0xe0
+	.byte		0x02
+	.byte		0x00
+	.byte		0x25
+	.byte		0x78
+	.byte		0x02
+	.byte		0x81
+	.byte		0x78
+	.byte		0x9c
+	.byte		0x63
+	.byte		0x60
+	.byte		0x60
+	.byte		0x56
+	.byte		0x61
+	.byte		0x60
+	.byte		0xe6
+	.byte		0xe0
+	.byte		0xe6
+	.byte		0xb6
+	.byte		0xe3
+	.byte		0x66
+	.byte		0x00
+	.byte		0x02
+	.byte		0x00
+	.byte		0x04
+	.byte		0x9c
+	.byte		0x00
+	.byte		0x92
diff --git a/binutils/testsuite/binutils-all/objdump.W b/binutils/testsuite/binutils-all/objdump.W
new file mode 100644
index 0000000..18dad34
--- /dev/null
+++ b/binutils/testsuite/binutils-all/objdump.W
@@ -0,0 +1,129 @@
+
+tmpdir/dw2-compressed.o:     file format .*
+
+The section .debug_info contains:
+
+  Compilation Unit @ offset 0x0:
+   Length:        0x4e \(32-bit\)
+   Version:       2
+   Abbrev Offset: 0
+   Pointer Size:  4
+ <0><b>: Abbrev Number: 1 \(DW_TAG_compile_unit\)
+    < c>   DW_AT_stmt_list   : 0x0	
+    <10>   DW_AT_high_pc     : 0x8	
+    <14>   DW_AT_low_pc      : 0x4	
+    <18>   DW_AT_name        : file1.txt	
+    <22>   DW_AT_producer    : GNU C 3.3.3	
+    <2e>   DW_AT_language    : 1	\(ANSI C\)
+ <1><2f>: Abbrev Number: 2 \(DW_TAG_subprogram\)
+    <30>   DW_AT_external    : 1	
+    <31>   DW_AT_decl_file   : 1	
+    <32>   DW_AT_decl_line   : 2	
+    <33>   DW_AT_name        : func_cu1	
+    <3c>   DW_AT_type        : <0x4a>	
+    <40>   DW_AT_low_pc      : 0x4	
+    <44>   DW_AT_high_pc     : 0x8	
+    <48>   DW_AT_frame_base  : 1 byte block: 55 	\(DW_OP_reg5\)
+ <1><4a>: Abbrev Number: 3 \(DW_TAG_base_type\)
+    <4b>   DW_AT_name        : int	
+    <4f>   DW_AT_byte_size   : 4	
+    <50>   DW_AT_encoding    : 5	\(signed\)
+
+Raw dump of debug contents of section .debug_line:
+
+  Offset:                      0x0
+  Length:                      62
+  DWARF Version:               2
+  Prologue Length:             35
+  Minimum Instruction Length:  1
+  Initial value of 'is_stmt':  1
+  Line Base:                   1
+  Line Range:                  1
+  Opcode Base:                 16
+
+ Opcodes:
+  Opcode 1 has 0 args
+  Opcode 2 has 1 args
+  Opcode 3 has 1 args
+  Opcode 4 has 1 args
+  Opcode 5 has 1 args
+  Opcode 6 has 0 args
+  Opcode 7 has 0 args
+  Opcode 8 has 0 args
+  Opcode 9 has 1 args
+  Opcode 10 has 0 args
+  Opcode 11 has 0 args
+  Opcode 12 has 1 args
+  Opcode 13 has 0 args
+  Opcode 14 has 0 args
+  Opcode 15 has 0 args
+
+ The Directory Table is empty.
+
+ The File Name Table:
+  Entry	Dir	Time	Size	Name
+  1	0	0	0	file1.txt
+
+ Line Number Statements:
+  Extended opcode 2: set Address to .*
+  Advance Line by 3 to 4
+  Copy
+  Copy
+  Extended opcode 2: set Address to .*
+  Extended opcode 1: End of Sequence
+
+
+  Offset:                      0x42
+  Length:                      25
+  DWARF Version:               2
+  Prologue Length:             19
+  Minimum Instruction Length:  1
+  Initial value of 'is_stmt':  1
+  Line Base:                   -5
+  Line Range:                  14
+  Opcode Base:                 13
+
+ Opcodes:
+  Opcode 1 has 0 args
+  Opcode 2 has 1 args
+  Opcode 3 has 1 args
+  Opcode 4 has 1 args
+  Opcode 5 has 1 args
+  Opcode 6 has 0 args
+  Opcode 7 has 0 args
+  Opcode 8 has 0 args
+  Opcode 9 has 1 args
+  Opcode 10 has 0 args
+  Opcode 11 has 0 args
+  Opcode 12 has 1 args
+
+ The Directory Table is empty.
+
+ The File Name Table is empty.
+
+ Line Number Statements:
+
+Contents of the .zdebug_abbrev section:
+
+  Number TAG
+   1      DW_TAG_compile_unit    \[has children\]
+    DW_AT_stmt_list    DW_FORM_data4
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_name         DW_FORM_string
+    DW_AT_producer     DW_FORM_string
+    DW_AT_language     DW_FORM_data1
+   2      DW_TAG_subprogram    \[no children\]
+    DW_AT_external     DW_FORM_flag
+    DW_AT_decl_file    DW_FORM_data1
+    DW_AT_decl_line    DW_FORM_data1
+    DW_AT_name         DW_FORM_string
+    DW_AT_type         DW_FORM_ref4
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_frame_base   DW_FORM_block1
+   3      DW_TAG_base_type    \[no children\]
+    DW_AT_name         DW_FORM_string
+    DW_AT_byte_size    DW_FORM_data1
+    DW_AT_encoding     DW_FORM_data1
+
diff --git a/binutils/testsuite/binutils-all/objdump.exp b/binutils/testsuite/binutils-all/objdump.exp
index 335b8bd..b9416a4 100644
--- a/binutils/testsuite/binutils-all/objdump.exp
+++ b/binutils/testsuite/binutils-all/objdump.exp
@@ -158,6 +158,49 @@ if [regexp $want $got] then {
     fail "objdump -s"
 }
 
+# Test objdump -s on a file that contains a compressed .debug section
+
+if {![binutils_assemble $srcdir/$subdir/dw2-compressed.S tmpdir/dw2-compressed.o]} then {
+    return
+}
+if [is_remote host] {
+    set compressed_testfile [remote_download host tmpdir/dw2-compressed.o]
+} else {
+    set compressed_testfile tmpdir/dw2-compressed.o
+}
+
+set got [remote_exec host "$OBJDUMP $OBJDUMPFLAGS -s -j .zdebug_abbrev $compressed_testfile" "" "/dev/null" "objdump.out"]
+
+if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
+    fail "objdump -s -j .zdebug_abbrev (reason: unexpected output)"
+    send_log $got
+    send_log "\n"
+}
+
+if { [regexp_diff objdump.out $srcdir/$subdir/objdump.s] } then {
+    fail "objdump -s -j .zdebug_abbrev"
+} else {
+    pass "objdump -s -j .zdebug_abbrev"
+}
+
+# Test objdump -W on a file that contains some compressed .debug sections
+
+set got [remote_exec host "$OBJDUMP $OBJDUMPFLAGS -W $compressed_testfile" "" "/dev/null" "objdump.out"]
+
+if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
+    fail "objdump -W (reason: unexpected output)"
+    send_log $got
+    send_log "\n"
+}
+
+if { [regexp_diff objdump.out $srcdir/$subdir/objdump.W] } then {
+    fail "objdump -W"
+} else {
+    pass "objdump -W"
+}
+
+
+
 # Options which are not tested: -a -d -D -R -T -x -l --stabs
 # I don't see any generic way to test any of these other than -a.
 # Tests could be written for specific targets, and that should be done
diff --git a/binutils/testsuite/binutils-all/objdump.s b/binutils/testsuite/binutils-all/objdump.s
new file mode 100644
index 0000000..72c59d2
--- /dev/null
+++ b/binutils/testsuite/binutils-all/objdump.s
@@ -0,0 +1,9 @@
+
+tmpdir/dw2-compressed.o:     file format .*
+
+Contents of section .zdebug_abbrev:
+ 0000 5a4c4942 00000000 00000033 785e6314  ZLIB.......3x\^c.
+ 0010 64146013 62146464 e650e510 e6666060  d.`.b.dd.P...f``
+ 0020 d263b0e7 b1e2b6e6 66e6f014 16641462  .c......f....d.b
+ 0030 74e00200 25780281 789c6360 60566160  t...%x..x.c``Va`
+ 0040 e6e0e6b6 e3660002 00049c00 92        .....f.......   
diff --git a/binutils/testsuite/binutils-all/readelf.exp b/binutils/testsuite/binutils-all/readelf.exp
index 52be1ee..c879af7 100644
--- a/binutils/testsuite/binutils-all/readelf.exp
+++ b/binutils/testsuite/binutils-all/readelf.exp
@@ -208,6 +208,42 @@ proc readelf_wi_test {} {
     pass "readelf -wi"
 }
 
+# This tests "readelf -wa", but on a file with a compressed
+# .debug_abbrev section.
+
+proc readelf_compressed_wa_test {} {
+    global READELF
+    global READELFFLAGS
+    global srcdir
+    global subdir
+    
+    # Compile the compressed-debug-section test file.
+    if { [target_compile $srcdir/$subdir/dw2-compressed.S tmpdir/dw2-compressed.o object debug] != "" } {
+	verbose "Unable to compile test file."
+	untested "readelf -wa (compressed)"
+	return
+    }
+
+    # Download it.
+    set tempfile [remote_download host tmpdir/dw2-compressed.o]
+
+    # Run "readelf -wa" on it.
+    set got [remote_exec host "$READELF $READELFFLAGS -wa $tempfile" "" "/dev/null" "readelf.out"]
+
+    # Upload the results.
+    set output [remote_upload host readelf.out]
+
+    file_on_host delete $tempfile
+    
+    if { [string compare [file_contents readelf.out] [file_contents $srcdir/$subdir/readelf.wa]] != 0 } then {
+	fail "readelf -wa (compressed)"
+	verbose "output is \n[file_contents readelf.out]" 2
+	verbose "expected is \n[file_contents $srcdir/$subdir/readelf.wa]" 2
+	return
+    }
+
+    pass "readelf -wa (compressed)"
+}
 
 # Test readelf's dumping abilities.
 
@@ -295,5 +331,6 @@ readelf_test -s $tempfile readelf.ss {}
 readelf_test -r $tempfile readelf.r  {}
 
 readelf_wi_test
+readelf_compressed_wa_test
 
 readelf_dump_test
diff --git a/binutils/testsuite/binutils-all/readelf.wa b/binutils/testsuite/binutils-all/readelf.wa
new file mode 100644
index 0000000..63892a4
--- /dev/null
+++ b/binutils/testsuite/binutils-all/readelf.wa
@@ -0,0 +1,24 @@
+Contents of the .zdebug_abbrev section:
+
+  Number TAG
+   1      DW_TAG_compile_unit    [has children]
+    DW_AT_stmt_list    DW_FORM_data4
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_name         DW_FORM_string
+    DW_AT_producer     DW_FORM_string
+    DW_AT_language     DW_FORM_data1
+   2      DW_TAG_subprogram    [no children]
+    DW_AT_external     DW_FORM_flag
+    DW_AT_decl_file    DW_FORM_data1
+    DW_AT_decl_line    DW_FORM_data1
+    DW_AT_name         DW_FORM_string
+    DW_AT_type         DW_FORM_ref4
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_frame_base   DW_FORM_block1
+   3      DW_TAG_base_type    [no children]
+    DW_AT_name         DW_FORM_string
+    DW_AT_byte_size    DW_FORM_data1
+    DW_AT_encoding     DW_FORM_data1
+