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| author | Rui Ueyama <ruiu@google.com> | 2015-10-14 22:20:57 +0000 |
|---|---|---|
| committer | Rui Ueyama <ruiu@google.com> | 2015-10-14 22:20:57 +0000 |
| commit | 2b675074feda2e8d643909c5fa9ab2bcb67c8581 (patch) | |
| tree | c439f573e4bbf0caf20c0366bbb61197883d653f /lld/ELF/Driver.cpp | |
| parent | f9e0b253ad605a429526b54ffdfcf121deaf082c (diff) | |
| download | bcm5719-llvm-2b675074feda2e8d643909c5fa9ab2bcb67c8581.tar.gz bcm5719-llvm-2b675074feda2e8d643909c5fa9ab2bcb67c8581.zip | |
ELF2: Support --entry=<addr>.
If an argument for --entry is a number, that's not a symbol name but
an absolute address. If that's the case, the address is directly set
to ELF header's e_entry.
llvm-svn: 250334
Diffstat (limited to 'lld/ELF/Driver.cpp')
| -rw-r--r-- | lld/ELF/Driver.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp index 53be66c55f1..2d7d75ce39a 100644 --- a/lld/ELF/Driver.cpp +++ b/lld/ELF/Driver.cpp @@ -201,7 +201,11 @@ template <class ELFT> void LinkerDriver::link(opt::InputArgList &Args) { // Add entry symbol. if (Config->Entry.empty()) Config->Entry = (Config->EMachine == EM_MIPS) ? "__start" : "_start"; - Config->EntrySym = Symtab.addUndefined(Config->Entry); + + // Set either EntryAddr (if S is a number) or EntrySym (otherwise). + StringRef S = Config->Entry; + if (S.getAsInteger(0, Config->EntryAddr)) + Config->EntrySym = Symtab.addUndefined(S); // In the assembly for 32 bit x86 the _GLOBAL_OFFSET_TABLE_ symbol // is magical and is used to produce a R_386_GOTPC relocation. |
