https://sourceware.org/bugzilla/show_bug.cgi?id=28818
Bug ID: 28818
Summary: objdump: disassembling raw binaries for x86-64
truncates addresses
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: nekotekina at gmail dot com
Target Milestone: ---
Hello, I needed to disassemble some code dumped in raw binary format. Resulting
output contains strange truncations of the addresses.
Command example:
objdump --adjust-vma=0x7fff12312300 -D -Mintel,x86-64 -b binary -m i386
<object>
Output example:
Disassembly of section .data:
12312300 <.data>:
12312300: 48 8b a7 e8 09 00 00 mov rsp,QWORD PTR [rdi+0x9e8]
12312307: 48 83 ec 08 sub rsp,0x8
1231230b: c3 ret
The address is truncated to 32 bit.
If I specify --adjust-vma=0xffffffff, the output is even more strange:
ffffffff <.data>:
ffff: 48 8b a7 e8 09 00 00 mov rsp,QWORD PTR [rdi+0x9e8]
6: 48 83 ec 08 sub rsp,0x8
a: c3 ret
Now it's truncated to 16 bits before wraparound?
It doesn't make much sense. The arch is clearly 64 bit.
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