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Diffstat (limited to 'lib/Target/X86/MCTargetDesc/X86BaseInfo.h')
-rw-r--r--lib/Target/X86/MCTargetDesc/X86BaseInfo.h27
1 files changed, 18 insertions, 9 deletions
diff --git a/lib/Target/X86/MCTargetDesc/X86BaseInfo.h b/lib/Target/X86/MCTargetDesc/X86BaseInfo.h
index f1712402d6..10046b29b1 100644
--- a/lib/Target/X86/MCTargetDesc/X86BaseInfo.h
+++ b/lib/Target/X86/MCTargetDesc/X86BaseInfo.h
@@ -94,7 +94,9 @@ namespace X86II {
MO_PLT,
/// MO_TLSGD - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the offset of the GOT entry with the TLS index structure that contains
+ /// the module number and variable offset for the symbol. Used in the
+ /// general dynamic TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TLSGD
@@ -104,7 +106,7 @@ namespace X86II {
/// the offset of the GOT entry with the TLS index for the module that
/// contains the symbol. When this index is passed to a call to to
/// __tls_get_addr, the function will return the base address of the TLS
- /// block for the symbol.
+ /// block for the symbol. Used in the x86-64 local dynamic TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TLSLD
@@ -114,49 +116,56 @@ namespace X86II {
/// the offset of the GOT entry with the TLS index for the module that
/// contains the symbol. When this index is passed to a call to to
/// ___tls_get_addr, the function will return the base address of the TLS
- /// block for the symbol.
+ /// block for the symbol. Used in the IA32 local dynamic TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TLSLDM
MO_TLSLDM,
/// MO_GOTTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the offset of the GOT entry with the thread-pointer offset for the
+ /// symbol. Used in the x86-64 initial exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @GOTTPOFF
MO_GOTTPOFF,
/// MO_INDNTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the absolute address of the GOT entry with the negative thread-pointer
+ /// offset for the symbol. Used in the non-PIC IA32 initial exec TLS access
+ /// model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @INDNTPOFF
MO_INDNTPOFF,
/// MO_TPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the thread-pointer offset for the symbol. Used in the x86-64 local
+ /// exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TPOFF
MO_TPOFF,
/// MO_DTPOFF - On a symbol operand this indicates that the immediate is
- /// the offset of the GOT entry with the TLS offset of the symbol.
+ /// the offset of the GOT entry with the TLS offset of the symbol. Used
+ /// in the local dynamic TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @DTPOFF
MO_DTPOFF,
/// MO_NTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the negative thread-pointer offset for the symbol. Used in the IA32
+ /// local exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @NTPOFF
MO_NTPOFF,
/// MO_GOTNTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the offset of the GOT entry with the negative thread-pointer offset for
+ /// the symbol. Used in the PIC IA32 initial exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @GOTNTPOFF