[llvm] [PAC][MC][ELF][AArch64] Support signed TLSDESC (PR #120010)

[Fangrui Song via llvm-commits]

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@@ -35,63 +35,75 @@
 // CHECK: add x5, x0, :tlsdesc_lo12:sym
 // CHECK-OBJ-LP64: 1c R_AARCH64_TLSDESC_ADD_LO12 sym
 
+   add x5, x0, #:tlsdesc_auth_lo12:sym
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MaskRay wrote:

You can move this to a new section so that the section offsets below won't be adjusted

https://github.com/llvm/llvm-project/pull/120010