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Add an explanation about cross linking.

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Differential Revision: https://reviews.llvm.org/D52567

llvm-svn: 343495
This commit is contained in:
Rui Ueyama 2018-10-01 16:41:58 +00:00
parent e0d2019052
commit 1e591d807b
1 changed files with 17 additions and 2 deletions
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19
lld/docs/ld.lld.1
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@ -3,7 +3,7 @@
.\"
.\" This man page documents only lld's ELF linking support, obtained originally
.\" from FreeBSD.
.Dd September 14, 2018
.Dd September 26, 2018
.Dt LD.LLD 1
.Os
.Sh NAME
@ -13,6 +13,7 @@
.Nm ld.lld
.Op Ar options
.Ar objfile ...
.Sh DESCRIPTION
A linker takes one or more object, archive, and library files, and combines
them into an output file (an executable, a shared library, or another object
@ -25,7 +26,21 @@ is a drop-in replacement for the GNU BFD and gold linkers.
It accepts most of the same command line arguments and linker scripts
as GNU linkers.
.Pp
These options are available:
.Nm
currently supports i386, x86-64, ARM, AArch64, PowerPC32, PowerPC64,
MIPS32, MIPS64, RISC-V, AMDGPU, Hexagon and SPARC V9 targets.
.Nm
acts as a Microsoft link.exe-compatible linker if invoked as
.Nm lld-link
and as macOS's ld if invoked as
.Nm ld.ld64.
All these targets are always supported however
.Nm
was built, so you can always use
.Nm
as a native linker as well as a cross linker.
.Sh OPTIONS
.Bl -tag -width indent
.It Fl -allow-multiple-definition
Do not error if a symbol is defined multiple times.