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| author | Jack Carter <jcarter@mips.com> | 2012-08-06 21:26:03 +0000 |
|---|---|---|
| committer | Jack Carter <jcarter@mips.com> | 2012-08-06 21:26:03 +0000 |
| commit | fc54d9e47a1276650f14f38e7d037c9b58c8dc2d (patch) | |
| tree | bbf0805bc17a035e6d50d6ecce00c63bc07fed7e /lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp | |
| parent | f45717e985260e9416dbd2fe8df471d48705c86a (diff) | |
| download | external_llvm-fc54d9e47a1276650f14f38e7d037c9b58c8dc2d.zip external_llvm-fc54d9e47a1276650f14f38e7d037c9b58c8dc2d.tar.gz external_llvm-fc54d9e47a1276650f14f38e7d037c9b58c8dc2d.tar.bz2 | |
Mips relocations R_MIPS_HIGHER and R_MIPS_HIGHEST.
These 2 relocations gain access to the
highest and the second highest 16 bits
of a 64 bit object.
R_MIPS_HIGHER %higher(A+S)
The %higher(x) function is [ (((long long) x + 0x80008000LL) >> 32) & 0xffff ].
R_MIPS_HIGHEST %highest(A+S)
The %highest(x) function is [ (((long long) x + 0x800080008000LL) >> 48) & 0xffff ].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161348 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp')
| -rw-r--r-- | lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp b/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp index 6fe0c11..f679b6f 100644 --- a/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp +++ b/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp @@ -59,9 +59,17 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) { break; case Mips::fixup_Mips_HI16: case Mips::fixup_Mips_GOT_Local: - // Get the higher 16-bits. Also add 1 if bit 15 is 1. + // Get the 2nd 16-bits. Also add 1 if bit 15 is 1. Value = ((Value + 0x8000) >> 16) & 0xffff; break; + case Mips::fixup_Mips_HIGHER: + // Get the 3rd 16-bits. + Value = ((Value + 0x80008000LL) >> 32) & 0xffff; + break; + case Mips::fixup_Mips_HIGHEST: + // Get the 4th 16-bits. + Value = ((Value + 0x800080008000LL) >> 48) & 0xffff; + break; } return Value; @@ -168,7 +176,9 @@ public: { "fixup_Mips_GPOFF_LO", 0, 16, 0 }, { "fixup_Mips_GOT_PAGE", 0, 16, 0 }, { "fixup_Mips_GOT_OFST", 0, 16, 0 }, - { "fixup_Mips_GOT_DISP", 0, 16, 0 } + { "fixup_Mips_GOT_DISP", 0, 16, 0 }, + { "fixup_Mips_HIGHER", 0, 16, 0 }, + { "fixup_Mips_HIGHEST", 0, 16, 0 } }; if (Kind < FirstTargetFixupKind) |