[PATCH] D127148: [ELF] Support 'G' in .eh_frame
Florian Mayer via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 8 14:29:05 PDT 2022
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGf6b1bfb7d5cc: [ELF] Support 'G' in .eh_frame (authored by fmayer).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D127148/new/
https://reviews.llvm.org/D127148
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 +1,19 @@
+# REQUIRES: aarch64
+
+# RUN: llvm-mc -filetype=obj -triple aarch64 -mattr=+mte %s -o %t.o
+# RUN: ld.lld --eh-frame-hdr %t.o -o %t
+# RUN: llvm-objdump --dwarf=frames %t | FileCheck %s
+
+# CHECK: Augmentation: "zRG"
+
+ .text
+ .globl WithUnwind
+ .p2align 2
+ .type WithUnwind, at function
+WithUnwind:
+ .cfi_startproc
+ .cfi_mte_tagged_frame
+ ret
+.Lfunc_end0:
+ .size WithUnwind, .Lfunc_end0-WithUnwind
+ .cfi_endproc
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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