https://llvm.org/bugs/show_bug.cgi?id=31641
Bug ID: 31641
Summary: llvm-objdump -p does not recognize certain phdr types
Product: new-bugs
Version: trunk
Hardware: All
OS: OpenBSD
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: b...@comstyle.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Looking towards utilizing llvm-objdump as a replacement for GNU objdump on
OpenBSD and while looking at the differences in output for some of the common
uses I noticed llvm-objdump does not recognize some phdr types.
GNU objdump..
$ objdump -p qemu-system-x86_64
qemu-system-x86_64: file format elf64-x86-64
Program Header:
PHDR off 0x0000000000000040 vaddr 0x0000000000000040 paddr
0x0000000000000040 align 2**3
filesz 0x0000000000000268 memsz 0x0000000000000268 flags r-x
INTERP off 0x000000000034f51e vaddr 0x000000000044f51e paddr
0x000000000044f51e align 2**0
filesz 0x0000000000000013 memsz 0x0000000000000013 flags r--
LOAD off 0x0000000000000000 vaddr 0x0000000000000000 paddr
0x0000000000000000 align 2**20
filesz 0x000000000034f51e memsz 0x000000000034f51e flags r-x
LOAD off 0x000000000034f51e vaddr 0x000000000044f51e paddr
0x000000000044f51e align 2**20
filesz 0x00000000003e4ffe memsz 0x00000000003e4ffe flags r--
LOAD off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**20
filesz 0x0000000000227bd8 memsz 0x0000000000665360 flags rw-
DYNAMIC off 0x00000000008ee380 vaddr 0x0000000000aee380 paddr
0x0000000000aee380 align 2**3
filesz 0x00000000000004b0 memsz 0x00000000000004b0 flags rw-
NOTE off 0x000000000034f534 vaddr 0x000000000044f534 paddr
0x000000000044f534 align 2**2
filesz 0x0000000000000018 memsz 0x0000000000000018 flags r--
EH_FRAME off 0x0000000000673fc0 vaddr 0x0000000000773fc0 paddr
0x0000000000773fc0 align 2**2
filesz 0x000000000001bb3c memsz 0x000000000001bb3c flags r--
OPENBSD_WXNEEDED off 0x0000000000000000 vaddr 0x0000000000000000 paddr
0x0000000000000000 align 2**3
filesz 0x0000000000000000 memsz 0x0000000000000000 flags --x
OPENBSD_RANDOMIZE off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**3
filesz 0x0000000000000008 memsz 0x0000000000000008 flags rw-
RELRO off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**6
filesz 0x00000000001c0208 memsz 0x00000000001c0208 flags r--
llvm-objdump..
$ llvm-objdump -p qemu-system-x86_64
qemu-system-x86_64: file format ELF64-x86-64
Program Header:
PHDR off 0x0000000000000040 vaddr 0x0000000000000040 paddr
0x0000000000000040 align 2**3
filesz 0x0000000000000268 memsz 0x0000000000000268 flags r-x
INTERP off 0x000000000034f51e vaddr 0x000000000044f51e paddr
0x000000000044f51e align 2**0
filesz 0x0000000000000013 memsz 0x0000000000000013 flags r--
LOAD off 0x0000000000000000 vaddr 0x0000000000000000 paddr
0x0000000000000000 align 2**20
filesz 0x000000000034f51e memsz 0x000000000034f51e flags r-x
LOAD off 0x000000000034f51e vaddr 0x000000000044f51e paddr
0x000000000044f51e align 2**20
filesz 0x00000000003e4ffe memsz 0x00000000003e4ffe flags r--
LOAD off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**20
filesz 0x0000000000227bd8 memsz 0x0000000000665360 flags rw-
DYNAMIC off 0x00000000008ee380 vaddr 0x0000000000aee380 paddr
0x0000000000aee380 align 2**3
filesz 0x00000000000004b0 memsz 0x00000000000004b0 flags rw-
UNKNOWN off 0x000000000034f534 vaddr 0x000000000044f534 paddr
0x000000000044f534 align 2**2
filesz 0x0000000000000018 memsz 0x0000000000000018 flags r--
EH_FRAME off 0x0000000000673fc0 vaddr 0x0000000000773fc0 paddr
0x0000000000773fc0 align 2**2
filesz 0x000000000001bb3c memsz 0x000000000001bb3c flags r--
UNKNOWN off 0x0000000000000000 vaddr 0x0000000000000000 paddr
0x0000000000000000 align 2**3
filesz 0x0000000000000000 memsz 0x0000000000000000 flags --x
UNKNOWN off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**3
filesz 0x0000000000000008 memsz 0x0000000000000008 flags rw-
UNKNOWN off 0x0000000000734de8 vaddr 0x0000000000934de8 paddr
0x0000000000934de8 align 2**6
filesz 0x00000000001c0208 memsz 0x00000000001c0208 flags r--
And for a sparc64 kernel.
$ objdump -p bsd
bsd: file format elf64-big
Program Header:
LOAD off 0x0000000000008000 vaddr 0x0000000001000000 paddr
0x0000000001000000 align 2**15
filesz 0x00000000007e7018 memsz 0x00000000007e7018 flags rwx
LOAD off 0x00000000007ef020 vaddr 0x0000000001800000 paddr
0x0000000001800000 align 2**5
filesz 0x000000000002f610 memsz 0x00000000000d464c flags rw-
OPENBSD_RANDOMIZE off 0x00000000007ecc10 vaddr 0x00000000017e4c10 paddr
0x00000000017e4c10 align 2**3
filesz 0x0000000000002408 memsz 0x0000000000002408 flags rw-
OPENBSD_BOOTDATA off 0x000000000081e5f0 vaddr 0x000000000182f5d0 paddr
0x000000000182f5d0 align 2**0
filesz 0x0000000000000040 memsz 0x0000000000000040 flags rw-
$ llvm-objdump -p bsd
bsd: file format ELF64-sparc
Program Header:
LOAD off 0x0000000000008000 vaddr 0x0000000001000000 paddr
0x0000000001000000 align 2**15
filesz 0x00000000007e7018 memsz 0x00000000007e7018 flags rwx
LOAD off 0x00000000007ef020 vaddr 0x0000000001800000 paddr
0x0000000001800000 align 2**5
filesz 0x000000000002f610 memsz 0x00000000000d464c flags rw-
UNKNOWN off 0x00000000007ecc10 vaddr 0x00000000017e4c10 paddr
0x00000000017e4c10 align 2**3
filesz 0x0000000000002408 memsz 0x0000000000002408 flags rw-
UNKNOWN off 0x000000000081e5f0 vaddr 0x000000000182f5d0 paddr
0x000000000182f5d0 align 2**0
filesz 0x0000000000000040 memsz 0x0000000000000040 flags rw-
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