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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2012-10-25 12:27:42 +0000 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2012-10-25 12:27:42 +0000 |
| commit | f2aceda854e089a8dd8646b144cea98e86895feb (patch) | |
| tree | a0a57db7c5ca7d222eb86d4e41c9b90ee2af8c16 /llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp | |
| parent | 9b502e512c44365c8df5dce1c032f00688ac2fd7 (diff) | |
| download | bcm5719-llvm-f2aceda854e089a8dd8646b144cea98e86895feb.tar.gz bcm5719-llvm-f2aceda854e089a8dd8646b144cea98e86895feb.zip | |
Initial TOC support for PowerPC64 object creation
This patch adds initial PPC64 TOC MC object creation using the small mcmodel
(a single 64K TOC) adding the some TOC relocations (R_PPC64_TOC,
R_PPC64_TOC16, and R_PPC64_TOC16DS).
The addition of 'undefinedExplicitRelSym' hook on 'MCELFObjectTargetWriter'
is meant to avoid the creation of an unreferenced ".TOC." symbol (used in
the .odp creation) as well to set the R_PPC64_TOC relocation target as the
temporary ".TOC." symbol. On PPC64 ABI, the R_PPC64_TOC relocation should
not point to any symbol.
llvm-svn: 166677
Diffstat (limited to 'llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp index 17447386222..87ecb13a4c7 100644 --- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp +++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp @@ -29,9 +29,14 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) { case FK_Data_1: case FK_Data_2: case FK_Data_4: + case FK_Data_8: + case PPC::fixup_ppc_toc: return Value; + case PPC::fixup_ppc_lo14: + case PPC::fixup_ppc_toc16_ds: + return (Value & 0xffff) << 2; case PPC::fixup_ppc_brcond14: - return Value & 0x3ffc; + return Value & 0xfffc; case PPC::fixup_ppc_br24: return Value & 0x3fffffc; #if 0 @@ -41,6 +46,7 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) { case PPC::fixup_ppc_ha16: return ((Value >> 16) + ((Value & 0x8000) ? 1 : 0)) & 0xffff; case PPC::fixup_ppc_lo16: + case PPC::fixup_ppc_toc16: return Value & 0xffff; } } @@ -72,7 +78,10 @@ public: { "fixup_ppc_brcond14", 16, 14, MCFixupKindInfo::FKF_IsPCRel }, { "fixup_ppc_lo16", 16, 16, 0 }, { "fixup_ppc_ha16", 16, 16, 0 }, - { "fixup_ppc_lo14", 16, 14, 0 } + { "fixup_ppc_lo14", 16, 14, 0 }, + { "fixup_ppc_toc", 0, 64, 0 }, + { "fixup_ppc_toc16", 16, 16, 0 }, + { "fixup_ppc_toc16_ds", 16, 14, 0 } }; if (Kind < FirstTargetFixupKind) |
