Martin Storsjö
93a77a441a
The previously existing patch needed some modifications to fit on top of lld 3.9. Patch 2 makes sure that one still can use the lld built in this way for linking in MSVC mode. Patch 3 fixes linking binaries larger than 4 MB or so (previously the binaries linked fine but didn't work). Patch 4 makes sure to error out if the relocations are too far away (instead of producing a broken binary), which happens after 16 MB. Patch 5 fixes relocations that have an offset, which probably happens in hand-written assembly (in libav).
62 lines
2.5 KiB
Diff
62 lines
2.5 KiB
Diff
From f8cba388440ff846c5f479889fc64a03066ff39c Mon Sep 17 00:00:00 2001
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From: Martin Storsjo <martin@martin.st>
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Date: Mon, 8 Aug 2016 15:37:59 +0300
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Subject: [PATCH 2/5] Make the "gnu arguments in lld coff" patch not break
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using lld-link in normal MSVC mode
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---
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COFF/Driver.cpp | 1 +
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COFF/DriverUtils.cpp | 5 ++++-
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COFF/Options.td | 2 ++
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3 files changed, 7 insertions(+), 1 deletion(-)
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diff --git a/COFF/Driver.cpp b/COFF/Driver.cpp
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index 0821591..65cfa9f 100644
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--- a/COFF/Driver.cpp
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+++ b/COFF/Driver.cpp
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@@ -602,6 +602,7 @@ void LinkerDriver::link(llvm::ArrayRef<const char *> ArgsArr) {
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if (Config->ImageBase == uint64_t(-1))
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Config->ImageBase = getDefaultImageBase();
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+ Symtab.addRelative(mangle("__ImageBase"), 0);
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Symtab.addRelative(mangle("__image_base__"), 0);
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if (Config->Machine == I386) {
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Config->SEHTable = Symtab.addRelative("___safe_se_handler_table", 0);
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diff --git a/COFF/DriverUtils.cpp b/COFF/DriverUtils.cpp
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index e2f1f2d..f9c37ec 100644
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--- a/COFF/DriverUtils.cpp
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+++ b/COFF/DriverUtils.cpp
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@@ -591,7 +591,10 @@ static const llvm::opt::OptTable::Info infoTable[] = {
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class COFFOptTable : public llvm::opt::OptTable {
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public:
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- COFFOptTable() : OptTable(infoTable) {}
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+ // GNU ld option style support requires case sensitive option matching
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+ // (for -L vs -l), needing aliases for a few link.exe options that can
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+ // appear in upper case in embedded directives in libraries.
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+ COFFOptTable() : OptTable(infoTable, false) {}
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};
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// Parses a given list of options.
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diff --git a/COFF/Options.td b/COFF/Options.td
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index 322b162..4e7338a 100644
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--- a/COFF/Options.td
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+++ b/COFF/Options.td
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@@ -19,11 +19,13 @@ def align : P<"align", "Section alignment">;
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def alternatename : P<"alternatename", "Define weak alias">;
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def base : P<"base", "Base address of the program">;
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def defaultlib : P<"defaultlib", "Add the library to the list of input files">;
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+def DEFAULTLIB : P<"DEFAULTLIB", "">, Alias<defaultlib>;
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def delayload : P<"delayload", "Delay loaded DLL name">;
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def entry : P<"entry", "Name of entry point symbol">;
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def export : P<"export", "Export a function">;
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// No help text because /failifmismatch is not intended to be used by the user.
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def failifmismatch : P<"failifmismatch", "">;
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+def FAILIFMISMATCH : P<"FAILIFMISMATCH", "">, Alias<failifmismatch>;
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def heap : P<"heap", "Size of the heap">;
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def implib : P<"implib", "Import library name">;
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def libpath : P<"libpath", "Additional library search path">;
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--
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2.7.4
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