66 lines
2.2 KiB
Diff
66 lines
2.2 KiB
Diff
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From 8cab312a44efc4711fb7adad65f1314349295591 Mon Sep 17 00:00:00 2001
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From: Lulu Cheng <chenglulu@loongson.cn>
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Date: Tue, 23 Jan 2024 11:28:09 +0800
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Subject: [PATCH 118/188] LoongArch: Disable TLS type symbols from generating
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non-zero offsets.
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TLS gd ld and ie type symbols will generate corresponding GOT entries,
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so non-zero offsets cannot be generated.
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The address of TLS le type symbol+addend is not implemented in binutils,
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so non-zero offset is not generated here for the time being.
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gcc/ChangeLog:
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* config/loongarch/loongarch.cc (loongarch_symbolic_constant_p):
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For symbols of type tls, non-zero Offset is not generated.
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---
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gcc/config/loongarch/loongarch.cc | 18 +++++++++---------
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1 file changed, 9 insertions(+), 9 deletions(-)
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diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
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index 5f22b9dd8..9cdd4ed15 100644
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--- a/gcc/config/loongarch/loongarch.cc
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+++ b/gcc/config/loongarch/loongarch.cc
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@@ -1921,11 +1921,7 @@ loongarch_symbolic_constant_p (rtx x, enum loongarch_symbol_type *symbol_type)
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x = UNSPEC_ADDRESS (x);
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}
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else if (SYMBOL_REF_P (x) || LABEL_REF_P (x))
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- {
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- *symbol_type = loongarch_classify_symbol (x);
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- if (*symbol_type == SYMBOL_TLS)
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- return true;
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- }
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+ *symbol_type = loongarch_classify_symbol (x);
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else
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return false;
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@@ -1936,17 +1932,21 @@ loongarch_symbolic_constant_p (rtx x, enum loongarch_symbol_type *symbol_type)
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relocations. */
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switch (*symbol_type)
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{
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- case SYMBOL_TLS_IE:
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- case SYMBOL_TLS_LE:
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- case SYMBOL_TLSGD:
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- case SYMBOL_TLSLDM:
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case SYMBOL_PCREL:
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case SYMBOL_PCREL64:
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/* GAS rejects offsets outside the range [-2^31, 2^31-1]. */
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return sext_hwi (INTVAL (offset), 32) == INTVAL (offset);
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+ /* The following symbol types do not allow non-zero offsets. */
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case SYMBOL_GOT_DISP:
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+ case SYMBOL_TLS_IE:
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+ case SYMBOL_TLSGD:
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+ case SYMBOL_TLSLDM:
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case SYMBOL_TLS:
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+ /* From an implementation perspective, tls_le symbols are allowed to
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+ have non-zero offsets, but currently binutils has not added support,
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+ so the generation of non-zero offsets is prohibited here. */
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+ case SYMBOL_TLS_LE:
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return false;
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}
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gcc_unreachable ();
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--
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2.43.0
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