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Resolve JIT runtime linking problems on Android.
Patch by James Lyon! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194832 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -794,7 +794,7 @@ static void runAtExitHandlers() {
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// not inlined, and hiding their real definitions in a separate archive file
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// that the dynamic linker can't see. For more info, search for
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// 'libc_nonshared.a' on Google, or read http://llvm.org/PR274.
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#if defined(__linux__)
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#if defined(__linux__) && defined(__GLIBC__)
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/* stat functions are redirecting to __xstat with a version number. On x86-64
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* linking with libc_nonshared.a and -Wl,--export-dynamic doesn't make 'stat'
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* available as an exported symbol, so we have to add it explicitly.
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@ -141,11 +141,81 @@ static int jit_noop() {
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return 0;
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}
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// ARM math functions are statically linked on Android from libgcc.a, but not
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// available at runtime for dynamic linking. On Linux these are usually placed
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// in libgcc_s.so so can be found by normal dynamic lookup.
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#if defined(__BIONIC__) && defined(__arm__)
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// List of functions which are statically linked on Android and can be generated
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// by LLVM. This is done as a nested macro which is used once to declare the
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// imported functions with ARM_MATH_DECL and once to compare them to the
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// user-requested symbol in getSymbolAddress with ARM_MATH_CHECK. The test
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// assumes that all functions start with __aeabi_ and getSymbolAddress must be
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// modified if that changes.
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#define ARM_MATH_IMPORTS(PP) \
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PP(__aeabi_d2f) \
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PP(__aeabi_d2iz) \
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PP(__aeabi_d2lz) \
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PP(__aeabi_d2uiz) \
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PP(__aeabi_d2ulz) \
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PP(__aeabi_dadd) \
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PP(__aeabi_dcmpeq) \
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PP(__aeabi_dcmpge) \
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PP(__aeabi_dcmpgt) \
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PP(__aeabi_dcmple) \
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PP(__aeabi_dcmplt) \
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PP(__aeabi_dcmpun) \
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PP(__aeabi_ddiv) \
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PP(__aeabi_dmul) \
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PP(__aeabi_dsub) \
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PP(__aeabi_f2d) \
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PP(__aeabi_f2iz) \
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PP(__aeabi_f2lz) \
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PP(__aeabi_f2uiz) \
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PP(__aeabi_f2ulz) \
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PP(__aeabi_fadd) \
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PP(__aeabi_fcmpeq) \
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PP(__aeabi_fcmpge) \
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PP(__aeabi_fcmpgt) \
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PP(__aeabi_fcmple) \
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PP(__aeabi_fcmplt) \
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PP(__aeabi_fcmpun) \
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PP(__aeabi_fdiv) \
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PP(__aeabi_fmul) \
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PP(__aeabi_fsub) \
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PP(__aeabi_i2d) \
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PP(__aeabi_i2f) \
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PP(__aeabi_idiv) \
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PP(__aeabi_idivmod) \
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PP(__aeabi_l2d) \
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PP(__aeabi_l2f) \
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PP(__aeabi_lasr) \
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PP(__aeabi_ldivmod) \
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PP(__aeabi_llsl) \
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PP(__aeabi_llsr) \
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PP(__aeabi_lmul) \
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PP(__aeabi_ui2d) \
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PP(__aeabi_ui2f) \
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PP(__aeabi_uidiv) \
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PP(__aeabi_uidivmod) \
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PP(__aeabi_ul2d) \
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PP(__aeabi_ul2f) \
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PP(__aeabi_uldivmod)
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// Declare statically linked math functions on ARM. The function declarations
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// here do not have the correct prototypes for each function in
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// ARM_MATH_IMPORTS, but it doesn't matter because only the symbol addresses are
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// needed. In particular the __aeabi_*divmod functions do not have calling
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// conventions which match any C prototype.
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#define ARM_MATH_DECL(name) extern "C" void name();
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ARM_MATH_IMPORTS(ARM_MATH_DECL)
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#undef ARM_MATH_DECL
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#endif
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uint64_t RTDyldMemoryManager::getSymbolAddress(const std::string &Name) {
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// This implementation assumes that the host program is the target.
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// Clients generating code for a remote target should implement their own
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// memory manager.
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#if defined(__linux__)
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#if defined(__linux__) && defined(__GLIBC__)
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//===--------------------------------------------------------------------===//
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// Function stubs that are invoked instead of certain library calls
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//
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@ -163,7 +233,18 @@ uint64_t RTDyldMemoryManager::getSymbolAddress(const std::string &Name) {
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if (Name == "lstat64") return (uint64_t)&lstat64;
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if (Name == "atexit") return (uint64_t)&atexit;
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if (Name == "mknod") return (uint64_t)&mknod;
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#endif // __linux__
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#endif // __linux__ && __GLIBC__
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// See ARM_MATH_IMPORTS definition for explanation
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#if defined(__BIONIC__) && defined(__arm__)
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if (Name.compare(0, 8, "__aeabi_") == 0) {
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// Check if the user has requested any of the functions listed in
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// ARM_MATH_IMPORTS, and if so redirect to the statically linked symbol.
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#define ARM_MATH_CHECK(fn) if (Name == #fn) return (uint64_t)&fn;
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ARM_MATH_IMPORTS(ARM_MATH_CHECK)
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#undef ARM_MATH_CHECK
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}
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#endif
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// We should not invoke parent's ctors/dtors from generated main()!
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// On Mingw and Cygwin, the symbol __main is resolved to
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