[PATCH] D127172: [ELF] Support 'G' in lld
Florian Mayer via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 6 18:01:59 PDT 2022
fmayer updated this revision to Diff 434662.
fmayer added a comment.
test no REQUIRES
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D127172/new/
https://reviews.llvm.org/D127172
Files:
lld/ELF/EhFrame.cpp
lld/test/ELF/stack-tagging-cfi.s
Index: lld/test/ELF/stack-tagging-cfi.s
===================================================================
--- /dev/null
+++ lld/test/ELF/stack-tagging-cfi.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mc -filetype=obj -triple aarch64-generic-linux -mattr=+mte %s -o %t.o
+# RUN: ld.lld --eh-frame-hdr %t.o -o %t
+# RUN: llvm-objdump -s --dwarf=frames %t.o | FileCheck %s
+# RUN: llvm-objdump -s --dwarf=frames %t | FileCheck %s
+
+# CHECK: Augmentation: "zRG"
+
+ .text
+ .globl WithUnwind // -- Begin function WithUnwind
+ .p2align 2
+ .type WithUnwind, at function
+WithUnwind: // @WithUnwind
+ .cfi_startproc
+// %bb.0: // %entry
+ .cfi_mte_tagged_frame
+ ret
+.Lfunc_end0:
+ .size WithUnwind, .Lfunc_end0-WithUnwind
+ .cfi_endproc
+ // -- End function
+ .globl NoUnwind // -- Begin function NoUnwind
+ .p2align 2
+ .type NoUnwind, at function
Index: lld/ELF/EhFrame.cpp
===================================================================
--- lld/ELF/EhFrame.cpp
+++ lld/ELF/EhFrame.cpp
@@ -171,7 +171,7 @@
readByte();
else if (c == 'P')
skipAugP();
- else if (c != 'B' && c != 'S')
+ else if (c != 'B' && c != 'S' && c != 'G')
failOn(aug.data(), "unknown .eh_frame augmentation string: " + aug);
}
return DW_EH_PE_absptr;
@@ -188,7 +188,7 @@
skipAugP();
else if (c == 'R')
readByte();
- else if (c != 'B' && c != 'S')
+ else if (c != 'B' && c != 'S' && c != 'G')
failOn(aug.data(), "unknown .eh_frame augmentation string: " + aug);
}
return false;
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