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d38df13120
This adds all the patches that were applied in the past to the clang700-import branch, under contrib/llvm. After these, there only minimal diffs left between the port sources and the base sources. Most of these remaining diffs are due to #ifdef shortcuts in the base sources, because we don't compile certain features in. Other diffs are because the port has applied a few changes that we don't have in base. Also switch to the common LICENSE defintion in devel/llvm-devel and chase new USE_GNOME requirements (for libxml2). PR: 212343, 230604 Submitted by: dim MFH: 2018Q4 Differential Revision: https://reviews.freebsd.org/D17709
57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
head r329003: explain long options may use one or two dashes
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head r338251: document -z ifunc-noplt option
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head r338682: document -z interpose option
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--- tools/lld/docs/ld.lld.1
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+++ tools/lld/docs/ld.lld.1
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@@ -3,7 +3,7 @@
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.\"
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.\" This man page documents only lld's ELF linking support, obtained originally
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.\" from FreeBSD.
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-.Dd July 30, 2018
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+.Dd September 14, 2018
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.Dt LD.LLD 1
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.Os
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.Sh NAME
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@@ -25,6 +25,17 @@ is a drop-in replacement for the GNU BFD and gold link
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It accepts most of the same command line arguments and linker scripts
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as GNU linkers.
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.Pp
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+Many options have both a single-letter and long form.
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+When using the long form options other than those beginning with the
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+letter
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+.Cm o
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+may be specified using either one or two dashes preceding the option name.
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+Long options beginning with
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+.Cm o
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+require two dashes to avoid confusion with the
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+.Fl o Ar path
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+option.
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+.Pp
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These options are available:
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.Bl -tag -width indent
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.It Fl -allow-multiple-definition
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@@ -440,10 +451,23 @@ Make the main stack executable.
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Stack permissions are recorded in the
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.Dv PT_GNU_STACK
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segment.
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+.It Cm ifunc-noplt
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+Do not emit PLT entries for GNU ifuncs.
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+Instead, preserve relocations for ifunc call sites so that they may
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+be applied by a run-time loader.
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+Note that this feature requires special loader support and will
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+generally result in application crashes when used outside of freestanding
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+environments.
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.It Cm initfirst
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Sets the
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.Dv DF_1_INITFIRST
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flag to indicate the module should be initialized first.
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+.It Cm interpose
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+Set the
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+.Dv DF_1_INTERPOSE
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+flag to indicate that the object is an interposer.
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+Runtime linkers perform symbol resolution by first searching the application,
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+followed by interposers, and then any other dependencies.
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.It Cm muldefs
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Do not error if a symbol is defined multiple times.
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The first definition will be used.
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