<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">That’s because it requires Apple Internal SDK.<br><br><div dir="ltr">Zhang</div><div dir="ltr"><br><blockquote type="cite">在 2020年5月8日，15:58，Edmund Furse via llvm-dev <llvm-dev@lists.llvm.org> 写道：<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="Content-Type" content="text/html; charset=utf-8">Thank you for your ideas.I have tried both of your suggestions.<div class=""><br class=""></div><div class="">1). Apple’s ld64 downloads ok and the xcodeproj launches ok. However a build gives six errors including:</div><div class="">Unable to find sdk ‘Macosx.internal’</div><div class="">tapi/tapi.h file not found</div><div class="">macho-/dyld+priv_h file not found</div><div class="">llvm-c/lto.h file not found</div><div class="">Why cannot Apple provide code that works? Has anyone managed to overcome these problems?</div><div class=""><br class=""></div><div class="">2). lzd stores some metadata in /tmp/zld-… and hence will not be allowed in a Sandboxed app.</div><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 7 May 2020, at 20:38, Shoaib Meenai <<a href="mailto:smeenai@fb.com" class="">smeenai@fb.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">You can always download source tarballs of ld64 from<span class="Apple-converted-space"> </span><a href="https://opensource.apple.com/tarballs/ld64/" style="color: blue; text-decoration: underline;" class="">https://opensource.apple.com/tarballs/ld64/</a><span class="Apple-converted-space"> </span>and build it yourself. (<a href="https://github.com/michaeleisel/zld" style="color: blue; text-decoration: underline;" class="">https://github.com/michaeleisel/zld</a><span class="Apple-converted-space"> </span>might also be interesting to you, depending on what all you plan to use the linker for.)<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(181, 196, 223); padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-size: 12pt;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-size: 12pt;" class="">llvm-dev <<a href="mailto:llvm-dev-bounces@lists.llvm.org" style="color: blue; text-decoration: underline;" class="">llvm-dev-bounces@lists.llvm.org</a>> on behalf of Edmund Furse via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" style="color: blue; text-decoration: underline;" class="">llvm-dev@lists.llvm.org</a>><br class=""><b class="">Reply-To:<span class="Apple-converted-space"> </span></b>Edmund Furse <<a href="mailto:edmund.furse@imitation.uk.com" style="color: blue; text-decoration: underline;" class="">edmund.furse@imitation.uk.com</a>><br class=""><b class="">Date:<span class="Apple-converted-space"> </span></b>Thursday, May 7, 2020 at 12:16 PM<br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>James Y Knight <<a href="mailto:jyknight@google.com" style="color: blue; text-decoration: underline;" class="">jyknight@google.com</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>"<a href="mailto:llvm-dev@lists.llvm.org" style="color: blue; text-decoration: underline;" class="">llvm-dev@lists.llvm.org</a>" <<a href="mailto:llvm-dev@lists.llvm.org" style="color: blue; text-decoration: underline;" class="">llvm-dev@lists.llvm.org</a>><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [llvm-dev] Ld64.lld cannot find Foundation framework<o:p class=""></o:p></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">James, many thanks.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Is there any linker available for Macs that has a freely available binary version?<o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I thought maybe that GNU’s linker might fit the bill?<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I cannot use Apple’s linker from /usr/bin/ as it is not allowed to make external calls from a sandboxed app.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hence my interest in the LLVM lld.<o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""><br class=""><o:p class=""></o:p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">On 7 May 2020, at 19:21, James Y Knight <<a href="mailto:jyknight@google.com" style="color: blue; text-decoration: underline;" class="">jyknight@google.com</a>> wrote:<o:p class=""></o:p></div></div><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">On Thu, May 7, 2020 at 1:54 PM Edmund Furse <<a href="mailto:edmund.furse@imitation.uk.com" style="color: blue; text-decoration: underline;" class="">edmund.furse@imitation.uk.com</a>> wrote:<o:p class=""></o:p></div></div><div class=""><blockquote style="border-style: none none none solid; border-left-width: 1pt; border-left-color: rgb(204, 204, 204); padding: 0in 0in 0in 6pt; margin-left: 4.8pt; margin-right: 0in;" class=""><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks for your reply. Two questions:<o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">1). Will ld64.lld be fixed in LLVM v11.0 and when is this likely to be?<o:p class=""></o:p></div></div></div></blockquote><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Likely won't be fixed that soon.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><blockquote style="border-style: none none none solid; border-left-width: 1pt; border-left-color: rgb(204, 204, 204); padding: 0in 0in 0in 6pt; margin-left: 4.8pt; margin-right: 0in;" class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">2). You mention Apple’s linker, by which I assume you mean GNU’s ld.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Is it possible to get a binary version of ld (preferably that does not use other things from /usr/bin)?<o:p class=""></o:p></div></div></div></blockquote><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">No, Apple does not use GNU ld, they have their own linker, "ld64". That's what you ran as /usr/bin/ld on your mac.</div></div></div></div></div></blockquote></div></div></div></div></div></blockquote></div><br class=""></div>
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