[Bug binutils/4408] New: Missing Symbols, and erronously reported as undefined

[duane at duaneellis dot com]

See attached tar.gz which duplicates this problems. This is from the README.

ONELINE: Missing Symbols, and erronously reported as undefined

TARGET:         ARM-ELF

BINUTILS:       binutils-2.17

----------------------------------------
Problem #1

        In the "BAR" case, the SYMBOL is missing 
        from the disassembly output.

Problem #2

        The Linker, (arm-elf-ld) depending upon the
        order Foo then Bar, or Bar Then Foo, looses
        they symbols also.

        See "BthenF.dis" for an example.

Problem #3 
        The result of which, is the symbol I need
        to debug my program, DOES NOT EXIST.

----------------------------------------

To repeat:

1)  Using: "binutils-2.17" - configured with:

2)  cd binutils-2.17 && ./configure --prefix=/some/place --target=arm-elf

[The remainder is in demo.sh]

ASSEMBLE the files as follows:

3)  arm-elf-as -o foo.o foo.S

4)  arm-elf-as -o bar.o bar.S

5)  arm-elf-as -o xxx.o xxx.S

Disassemble the files as follows:

6) arm-elf-objdump -D foo.o > foo.dis

7) arm-elf-objdump -D bar.o > bar.dis

8) arm-elf-objdump -D xxx.o > xxx.dis

Link two programs

9) arm-elf-ld -o FthenB.arm-elf foo.o bar.o

10) arm-elf-ld -o BthenF.arm-elf bar.o foo.o

Dissasemble the two programs

11) arm-elf-objdump -D FthenB.arm-elf > FthenB.dis

12) arm-elf-objdump -D BthenF.arm-elf > BthenF.dis

--------------------------------------------------
FOO.S contains:


        .section .textearly,"ax","progbits"

        
        .global Foo
        .type   Foo, function
Foo:
        bl      Bar


-------------------------------------------
Bar.S contains:


        .section .textearly,"ax","progbits"

        nop
        .global Bar
        .type   Bar, function
Bar:
        bl      Foo

--------------------------------------------------
XXX.S contains


        .text
        
        .word   0x12345678
        
        .global Xyz
        .type   Xyz, function
Xyz:
        bl      Foo


------------------------------------------

DEMO.SH contains:
(In this example, I am running an un-installed version of "binutils-070315"
I can also duplicate this with 2.17, and 2.17.50


WHERE=binutils-070315

$WHERE/gas/as-new -o foo.o foo.S
$WHERE/gas/as-new -o bar.o bar.S
$WHERE/gas/as-new -o xxx.o xxx.S

$WHERE/binutils/objdump -D foo.o > foo.dis
$WHERE/binutils/objdump -D bar.o > bar.dis
$WHERE/binutils/objdump -D xxx.o > xxx.dis

$WHERE/binutils/nm-new foo.o > foo.symbols
$WHERE/binutils/nm-new bar.o > bar.symbols
$WHERE/binutils/nm-new xxx.o > xxx.symbols

$WHERE/ld/ld-new -o FthenB.arm-elf foo.o bar.o
$WHERE/ld/ld-new -o BthenF.arm-elf bar.o foo.o

$WHERE/binutils/objdump -D FthenB.arm-elf > FthenB.dis
$WHERE/binutils/objdump -D BthenF.arm-elf > BthenF.dis

-- 
           Summary: Missing Symbols, and erronously reported as undefined
           Product: binutils
           Version: 2.18 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: duane at duaneellis dot com
                CC: bug-binutils at gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: arm-elf


http://sourceware.org/bugzilla/show_bug.cgi?id=4408

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