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[Object/ELF] Add support for setVisibility()

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This is a prerequisite to implement symbol visibility for ELF
in lld.

Differential Revision:	http://reviews.llvm.org/D8279


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Davide Italiano 2015-03-12 07:48:25 +00:00
parent 3209a40889
commit f23883936c
1 changed files with 8 additions and 0 deletions
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8
include/llvm/Object/ELFTypes.h
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@ -189,7 +189,15 @@ struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
}
/// Access to the STV_xxx flag stored in the first two bits of st_other.
/// STV_DEFAULT: 0
/// STV_INTERNAL: 1
/// STV_HIDDEN: 2
/// STV_PROTECTED: 3
unsigned char getVisibility() const { return st_other & 0x3; }
void setVisibility(unsigned char v) {
assert(v < 4 && "Invalid value for visibility");
st_other = (st_other & ~0x3) | v;
}
};
/// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section