Update objdump's --disassemble=<symbol> feature so that if <symbol> is a function, the entire function will be disassembled, regardless of the presence of interveening symbols.

* objdump.c (disassemble_section): When disassembling from a
	symbol only stop at the next symbol if the original symbol was not
	a function symbol.  Otherwise continue disassembling until a new
	function is reached.
	* testsuite/binutils-all/objdump.exp: Add tests of extended
	functionality.
	* testsuite/binutils-all/disasm.s: New test source file.

binutils/testsuite/binutils-all/disasm.s

@@ -0,0 +1,24 @@
+	.text
+	
+	.globl start_of_text
+start_of_text:
+	.type start_of_text, "function"
+	.long	1
+	.size start_of_text, . - start_of_text
+
+	.globl func
+func:
+	.type func, "function"
+	.long	2
+	.global global_non_func_sym
+global_non_func_sym:
+	.long	3
+local_non_func_sym:
+	.long	4
+	.size func, . - func
+
+	.globl next_func
+next_func:	
+	.type next_func, "function"
+	.long	5
+	.size next_func, . - next_func

binutils/testsuite/binutils-all/objdump.exp

@@ -62,7 +62,7 @@ if [regexp $want $got] then {
 
 
 if {![binutils_assemble $srcdir/$subdir/bintest.s tmpdir/bintest.o]} then {
-    fail "objdump (assembling)"
+    fail "objdump (assembling bintest.s)"
     return
 }
 if {![binutils_assemble $srcdir/$subdir/bintest.s tmpdir/bintest2.o]} then {
@@ -280,8 +280,95 @@ proc test_objdump_d_sym { testfile dumpfile } {
 }
 
 test_objdump_d_sym $testfile $testfile
-if { [ remote_file host exists $testarchive ] } then {
-    test_objdump_d_sym $testarchive bintest2.o
+
+proc test_objdump_d_func_sym { testfile dumpfile } {
+    global OBJDUMP
+    global OBJDUMPFLAGS
+
+    set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS --disassemble=func --disassemble-zeroes $testfile"]
+
+    set want "$dumpfile:.*Disassembly of section"
+    if ![regexp $want $got] then {
+	fail "objdump --disassemble=func $testfile: No disassembly title"
+	return
+    }
+
+    set want "$dumpfile:.*00+0 <start_of_text>"
+    if [regexp $want $got] then {
+	fail "objdump --disassemble=func $testfile: First symbol displayed, when it should be absent"
+	return
+    }
+
+    set want "$dumpfile:.*00+. <func>"
+    if ![regexp $want $got] then {
+	fail "objdump --disassemble=func $testfile: Disassembly does not start at function symbol"
+	return
+    }
+
+    set want "$dumpfile:.*00+. <global_non_func_sym>"
+    if ![regexp $want $got] then {
+	fail "objdump --disassemble=func $testfile: Non function symbol not displayed"
+	return
+    }
+
+    set want "$dumpfile:.*00+. <next_func>"
+    if [regexp $want $got] then {
+	fail "objdump --disassemble=func $testfile: Disassembly did not stop at the next function"
+	return
+    }
+
+    pass "objdump --disassemble=func $testfile"
+}
+
+proc test_objdump_d_non_func_sym { testfile dumpfile } {
+    global OBJDUMP
+    global OBJDUMPFLAGS
+
+    set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS --disassemble=global_non_func_sym $testfile"]
+
+    set want "$dumpfile:.*Disassembly of section"
+    if ![regexp $want $got] then {
+	fail "objdump --disassemble=non_func $testfile: No disassembly title"
+	return
+    }
+
+    set want "$dumpfile:.*00+0 <start_of_text>"
+    if [regexp $want $got] then {
+	fail "objdump --disassemble=non_func $testfile: First symbol displayed, when it should be absent"
+	return
+    }
+
+    set want "$dumpfile:.*00+. <global_non_func_sym>"
+    if ![regexp $want $got] then {
+	fail "objdump --disassemble=non_func $testfile: Non function symbol not displayed"
+	return
+    }
+
+    set want "$dumpfile:.*00+. <local_non_func_sym>"
+    if [regexp $want $got] then {
+	fail "objdump --disassemble=non_func $testfile: Disassembly did not stop at the next symbol"
+	return
+    }
+
+    pass "objdump --disassemble=non_func $testfile"
+}
+
+# Extra test for ELF format - check that --disassemble=func disassembles
+# all of func, and does not stop at the next symbol.
+if { [is_elf_format] } then {
+
+    if {![binutils_assemble $srcdir/$subdir/disasm.s tmpdir/disasm.o]} then {
+	fail "objdump --disassemble=func (assembling disasm.s)"
+    } else {
+	if [is_remote host] {
+	    set elftestfile [remote_download host tmpdir/disasm.o]
+	} else {
+	    set elftestfile tmpdir/disasm.o
+	}
+    
+	test_objdump_d_func_sym $elftestfile $elftestfile
+	test_objdump_d_non_func_sym $elftestfile $elftestfile
+    }
 }