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authorFangrui Song <i@maskray.me>2022-06-25 10:27:49 -0700
committerFangrui Song <i@maskray.me>2022-06-25 10:27:49 -0700
commitaf9bf9cb4703909caf6e66a9f746bdd66a74f633 (patch)
treeca12bf2576332aee7559b7f8044487872211e7ce
parent1fa2e2287e8bcac6427f2495049e0ccfb3ee8514 (diff)
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arm: Define elf_backend_extern_protected_data to 0 [PR 18705]
Similar to commit 4fb55bf6a9606eb7b626c30a9f4e71d6c2d4fbb2 for aarch64. Commit b68a20d6675f1360ea4db50a9835c073675b9889 changed ld to produce R_ARM_GLOB_DAT but that defeated the purpose of protected visibility as an optimization. Restore the previous behavior (which matches ld.lld) by defining elf_backend_extern_protected_data to 0.
-rw-r--r--bfd/elf32-arm.c2
-rw-r--r--ld/testsuite/ld-arm/protected-data.d2
2 files changed, 2 insertions, 2 deletions
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index 60f89ec..0852b38 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -20315,7 +20315,7 @@ elf32_arm_backend_symbol_processing (bfd *abfd, asymbol *sym)
#define elf_backend_dtrel_excludes_plt 1
#define elf_backend_got_header_size 12
-#define elf_backend_extern_protected_data 1
+#define elf_backend_extern_protected_data 0
#undef elf_backend_obj_attrs_vendor
#define elf_backend_obj_attrs_vendor "aeabi"
diff --git a/ld/testsuite/ld-arm/protected-data.d b/ld/testsuite/ld-arm/protected-data.d
index 3f266de..7dffe9a 100644
--- a/ld/testsuite/ld-arm/protected-data.d
+++ b/ld/testsuite/ld-arm/protected-data.d
@@ -2,4 +2,4 @@
#ld: -shared
#readelf: -r -W
#...
-.* R_ARM_GLOB_DAT .* var.*
+.* R_ARM_RELATIVE .*