[lld] [lld/mac] Allow -segprot having stricter initprot than maxprot on mac (PR #107269)

[via llvm-commits]

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@@ -1882,9 +1882,20 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
     StringRef segName = arg->getValue(0);
     uint32_t maxProt = parseProtection(arg->getValue(1));
     uint32_t initProt = parseProtection(arg->getValue(2));
-    if (maxProt != initProt && config->arch() != AK_i386)
-      error("invalid argument '" + arg->getAsString(args) +
-            "': max and init must be the same for non-i386 archs");
+
+    bool allowsDifferentInitAndMaxProt =
+        config->platform() == PLATFORM_MACOS ||
+        config->platform() == PLATFORM_MACCATALYST;
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zmodem wrote:

Maybe there should be a comment here that ios is currently more of a "don't know" than a hard no?

https://github.com/llvm/llvm-project/pull/107269