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| author | Chris Dearman <chris.dearman@imgtec.com> | 2014-02-06 20:36:51 -0800 |
|---|---|---|
| committer | Elliott Hughes <enh@google.com> | 2014-02-11 15:33:14 -0800 |
| commit | 9918665a45095ad135576f005c0e5307feb366a1 (patch) | |
| tree | fdef48d2a8c74a2bc8dfd17fd25527ed98b96b3a /linker/linker.h | |
| parent | c856baeeade96c167400f179a86d50c426e81788 (diff) | |
| download | bionic-9918665a45095ad135576f005c0e5307feb366a1.zip bionic-9918665a45095ad135576f005c0e5307feb366a1.tar.gz bionic-9918665a45095ad135576f005c0e5307feb366a1.tar.bz2 | |
[MIPS64] Dynamic linker
Change-Id: I937c7c776cae3d66e214798d5217a922cd106bfc
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Duane Sand <duane.sand@imgtec.com>
Diffstat (limited to 'linker/linker.h')
| -rw-r--r-- | linker/linker.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/linker/linker.h b/linker/linker.h index bb35ffc..b8d0587 100644 --- a/linker/linker.h +++ b/linker/linker.h @@ -56,6 +56,20 @@ #define ELFW(what) ELF32_ ## what #endif +// mips64 interprets Elf64_Rel structures' r_info field differently. +// bionic (like other C libraries) has macros that assume regular ELF files, +// but the dynamic linker needs to be able to load mips64 ELF files. +#if defined(__mips__) && defined(__LP64__) +#undef ELF64_R_SYM +#undef ELF64_R_TYPE +#undef ELF64_R_INFO +#define ELF64_R_SYM(info) (((info) >> 0) & 0xffffffff) +#define ELF64_R_SSYM(info) (((info) >> 32) & 0xff) +#define ELF64_R_TYPE3(info) (((info) >> 40) & 0xff) +#define ELF64_R_TYPE2(info) (((info) >> 48) & 0xff) +#define ELF64_R_TYPE(info) (((info) >> 56) & 0xff) +#endif + // Returns the address of the page containing address 'x'. #define PAGE_START(x) ((x) & PAGE_MASK) @@ -74,8 +88,8 @@ typedef void (*linker_function_t)(); -// Android uses REL for 32-bit but only uses RELA for 64-bit. -#if defined(__LP64__) +// Android uses RELA for aarch64 and x86_64. mips64 still uses REL. +#if defined(__aarch64__) || defined(__x86_64__) #define USE_RELA 1 #endif @@ -110,10 +124,10 @@ struct soinfo { unsigned* bucket; unsigned* chain; -#if !defined(__LP64__) - // This is only used by 32-bit MIPS, but needs to be here for +#if defined(__mips__) || !defined(__LP64__) + // This is only used by mips and mips64, but needs to be here for // all 32-bit architectures to preserve binary compatibility. - unsigned* plt_got; + ElfW(Addr)** plt_got; #endif #if defined(USE_RELA) |