LLVM-OBJDUMP(1) User Commands LLVM-OBJDUMP(1)NAME
llvm-objdump - manual page for llvm-objdump 4.0
DESCRIPTION
OVERVIEW: llvm object file dumper
USAGE: llvm-objdump [options] <input object files>
OPTIONS:
General options:
-aarch64-neon-syntax - Choose style of NEON
code to emit from AArch64 backend:
=generic
- Emit generic NEON assembly
=apple - Emit Apple-style NEON assembly
-amdgpu-dump-rtmd - Dump AMDGPU runtime
metadata
-amdgpu-spill-sgpr-to-smem - Use scalar stores to
spill SGPRs if supported by subtarget
-amdgpu-vgpr-index-mode - Use GPR indexing mode
instead of movrel for vector indexing
-arch=<string> - architecture(s) from
a Mach-O file to dump
-arch-name=<string> - Target arch to disas‐
semble for, see -version for available targets
-archive-headers - Print archive headers
for Mach-O archives (requires -macho)
-archive-member-offsets - Print the offset to
each archive member for Mach-O archives (requires -macho and
-archive-headers)
-arm-execute-only-
-arm-implicit-it - Allow conditional
instructions outdside of an IT block
=always
- Accept in both ISAs, emit implicit ITs in Thumb
=never - Warn in ARM, reject in Thumb
=arm - Accept in ARM, reject in Thumb
=thumb - Warn in ARM, emit implicit ITs in Thumb
-bind - Display mach-o bind‐
ing info
-bounds-checking-single-trap - Use one trap block
per function
-color - use colored syntax
highlighting (default=autodetect)
-cvp-dont-process-adds-
-data-in-code - Print the data in
code table for Mach-O objects (requires -macho)
-dis-symname=<string> - disassemble just this
symbol's instructions (requires -macho)
-disable-spill-fusing - Disable fusing of
spill code into instructions
-disassemble - Display assembler
mnemonics for the machine instructions
-disassemble-all - Display assembler
mnemonics for the machine instructions
-dsym=<string> - Use .dSYM file for
debug info
-dwarf - Dump of dwarf debug
sections:
=frames
- .debug_frame
-dylib-id - Print the shared
library's id for the dylib Mach-O file (requires -macho)
-dylibs-used - Print the shared
libraries used for linked Mach-O files (requires -macho)
-enable-implicit-null-checks - Fold null checks into
faulting memory operations
-enable-load-pre-
-enable-name-compression - Enable name string
compression
-enable-objc-arc-opts - enable/disable all
ARC Optimizations
-enable-scoped-noalias-
-enable-tbaa-
-exhaustive-register-search - Exhaustive Search for
registers bypassing the depth and interference cutoffs of last
chance recoloring
-expensive-combines - Enable expensive
instruction combines
-exports-trie - Display mach-o
exported symbols
-fault-map-section - Display contents of
faultmap section
-filter-print-funcs=<function names> - Only print IR for
functions whose name match this for all
print-[before|after][-all] options
-full-leading-addr - Print full leading
address
-g - Print line informa‐
tion from debug info if available
-gpsize=<uint> - Global Pointer
Addressing Size.
The default size is 8.
-hash-based-counter-split - Rename counter vari‐
able of a comdat function based on cfg hash
-ignore-empty-index-file - Ignore an empty index
file and perform non-ThinLTO compilation
-imp-null-check-page-size=<int> - The page size of the
target in bytes
-imp-null-max-insts-to-consider=<uint> - The max number of
instructions to consider hoisting loads over (the algorithm is
quadratic over this number)
-indirect-symbols - Print indirect symbol
table for Mach-O objects (requires -macho)
-info-plist - Print the info plist
section as strings for Mach-O objects (requires -macho)
-internalize-public-api-file=<filename> - A file containing
list of symbol names to preserve
-internalize-public-api-list=<list> - A list of symbol
names to preserve
-join-liveintervals - Coalesce copies
(default=true)
-lazy-bind - Display mach-o lazy
binding info
-limit-float-precision=<uint> - Generate low-preci‐
sion inline sequences for some float libcalls
-line-numbers - Display source line
numbers with disassembly. Implies disassemble object
-link-opt-hints - Print the linker
optimization hints for Mach-O objects (requires -macho)
-lto-pass-remarks-output=<filename> - Output filename for
pass remarks
-macho - Use MachO specific
object file parser
-mattr=<a1,+a2,-a3,...> - Target specific
attributes
-mcpu=<cpu-name> - Target a specific cpu
type (-mcpu=help for details)
-merror-missing-parenthesis - Error for missing
parenthesis around predicate registers
-merror-noncontigious-register - Error for register
names that aren't contigious
-mfuture-regs - Enable future regis‐
ters
-mips-compact-branches - MIPS Specific: Com‐
pact branch policy.
=never
- Do not use compact branches if possible.
=optimal
- Use compact branches where appropiate (default).
=always
- Always use compact branches if possible.
-mips16-constant-islands - Enable mips16 con‐
stant islands.
-mips16-hard-float - Enable mips16 hard
float.
-mno-compound - Disable looking for
compound instructions for Hexagon
-mno-fixup - Disable fixing up
resolved relocations for Hexagon
-mno-ldc1-sdc1 - Expand double preci‐
sion loads and stores to their single precision counterparts
-mno-pairing - Disable looking for
duplex instructions for Hexagon
-mwarn-missing-parenthesis - Warn for missing
parenthesis around predicate registers
-mwarn-noncontigious-register - Warn for register
names that arent contigious
-mwarn-sign-mismatch - Warn for mismatching
a signed and unsigned value
-no-discriminators - Disable generation of
discriminator information.
-no-leading-addr - Print no leading
address
-no-leading-headers - Print no leading
headers
-no-show-raw-insn - When disassembling
instructions, do not print the instruction bytes.
-no-symbolic-operands - do not symbolic oper‐
ands when disassembling (requires -macho)
-non-verbose - Print the info for
Mach-O objects in non-verbose or numeric form (requires -macho)
-nvptx-sched4reg - NVPTX Specific:
schedule for register pressue
-objc-meta-data - Print the Objective-C
runtime meta data for Mach-O files (requires -macho)
-print-after-all - Print IR after each
pass
-print-before-all - Print IR before each
pass
-print-imm-hex - Use hex format for
immediate values
-print-machineinstrs=<pass-name> - Print machine instrs
-private-header - Display only the
first format specific file header
-private-headers - Display format spe‐
cific file headers
-r - Display the reloca‐
tion entries in the file
-r600-ir-structurize - Use StructurizeCFG IR
pass
-raw-clang-ast - Dump the raw binary
contents of the clang AST section
-rdf-dump-
-rdf-limit=<uint> -
-rebase - Display mach-o rebas‐
ing info
-regalloc - Register allocator to
use
=default
- pick register allocator based on -O option
=pbqp - PBQP register allocator
=greedy
- greedy register allocator
=fast - fast register allocator
=basic - basic register allocator
-rewrite-map-file=<filename> - Symbol Rewrite Map
-rng-seed=<seed> - Seed for the random
number generator
-s - Display the content
of each section
-sample-profile-check-record-coverage=<N> - Emit a warning if
less than N% of records in the input profile are matched to the
IR.
-sample-profile-check-sample-coverage=<N> - Emit a warning if
less than N% of samples in the input profile are matched to the
IR.
-sample-profile-inline-hot-threshold=<N> - Inlined functions
that account for more than N% of all samples collected in the
parent function, will be inlined again.
-sample-profile-max-propagate-iterations=<uint> - Maximum number of
iterations to go through when propagating sample block/edge
weights through the CFG.
-section=<string> - Operate on the speci‐
fied sections only. With -macho dump segment,section
-section-headers - Display summaries of
the headers for each section.
-source - Display source
inlined with disassembly. Implies disassmble object
-stackmap-version=<int> - Specify the stackmap
encoding version (default = 2)
-start-address=<address> - Disassemble beginning
at address
-static-func-full-module-prefix - Use full module build
paths in the profile counter names for static functions.
-stats - Enable statistics
output from program (available with Asserts)
-stats-json - Display statistics as
json data
-stop-address=<address> - Stop disassembly at
address
-summary-file=<string> - The summary file to
use for function importing.
-t - Display the symbol
table
-threads=<int> -
-time-passes - Time each pass,
printing elapsed time for each on exit
-triple=<string> - Target triple to dis‐
assemble for, see -version for available targets
-universal-headers - Print Mach-O univer‐
sal headers (requires -macho)
-unwind-info - Display unwind infor‐
mation
-verify-debug-info-
-verify-dom-info - Verify dominator info
(time consuming)
-verify-loop-info - Verify loop info
(time consuming)
-verify-loop-lcssa - Verify loop lcssa
form (time consuming)
-verify-machine-dom-info - Verify machine domi‐
nator info (time consuming)
-verify-regalloc - Verify during regis‐
ter allocation
-verify-region-info - Verify region info
(time consuming)
-verify-scev - Verify ScalarEvolu‐
tion's backedge taken counts (slow)
-verify-scev-maps - Verify no dangling
value in ScalarEvolution's ExprValueMap (slow)
-vp-counters-per-site=<number> - The average number of
profile counters allocated per value profiling site.
-vp-static-alloc - Do static counter
allocation for value profiler
-weak-bind - Display mach-o weak
binding info
-x86-asm-syntax - Choose style of code
to emit from X86 backend:
=att - Emit AT&T-style assembly
=intel - Emit Intel-style assembly
Generic Options:
-help - Display available
options (-help-hidden for more)
-help-list - Display list of
available options (-help-list-hidden for more)
-version - Display the version
of this program
SEE ALSO
The full documentation for llvm-objdump is maintained as a Texinfo man‐
ual. If the info and llvm-objdump programs are properly installed at
your site, the command
info llvm-objdump
should give you access to the complete manual.
llvm-objdump 4.0 October 2017 LLVM-OBJDUMP(1)
