Mercurial > hg > graal-jvmci-8
diff src/cpu/ppc/vm/macroAssembler_ppc.hpp @ 17803:31e80afe3fed
8035647: PPC64: Support for elf v2 abi.
Summary: ELFv2 ABI used by the little endian PowerPC64 on Linux.
Reviewed-by: kvn
Contributed-by: asmundak@google.com
author | goetz |
---|---|
date | Thu, 06 Mar 2014 10:55:28 -0800 |
parents | 67fa91961822 |
children | 58cf34613a72 |
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--- a/src/cpu/ppc/vm/macroAssembler_ppc.hpp Thu Feb 20 11:05:12 2014 +0100 +++ b/src/cpu/ppc/vm/macroAssembler_ppc.hpp Thu Mar 06 10:55:28 2014 -0800 @@ -279,12 +279,12 @@ // Push a frame of size `bytes'. No abi space provided. void push_frame(unsigned int bytes, Register tmp); - // Push a frame of size `bytes' plus abi112 on top. - void push_frame_abi112(unsigned int bytes, Register tmp); + // Push a frame of size `bytes' plus abi_reg_args on top. + void push_frame_reg_args(unsigned int bytes, Register tmp); // Setup up a new C frame with a spill area for non-volatile GPRs and additional // space for local variables - void push_frame_abi112_nonvolatiles(unsigned int bytes, Register tmp); + void push_frame_reg_args_nonvolatiles(unsigned int bytes, Register tmp); // pop current C frame void pop_frame(); @@ -296,17 +296,31 @@ private: address _last_calls_return_pc; +#if defined(ABI_ELFv2) + // Generic version of a call to C function. + // Updates and returns _last_calls_return_pc. + address branch_to(Register function_entry, bool and_link); +#else // Generic version of a call to C function via a function descriptor // with variable support for C calling conventions (TOC, ENV, etc.). // updates and returns _last_calls_return_pc. address branch_to(Register function_descriptor, bool and_link, bool save_toc_before_call, bool restore_toc_after_call, bool load_toc_of_callee, bool load_env_of_callee); +#endif public: // Get the pc where the last call will return to. returns _last_calls_return_pc. inline address last_calls_return_pc(); +#if defined(ABI_ELFv2) + // Call a C function via a function descriptor and use full C + // calling conventions. Updates and returns _last_calls_return_pc. + address call_c(Register function_entry); + // For tail calls: only branch, don't link, so callee returns to caller of this function. + address call_c_and_return_to_caller(Register function_entry); + address call_c(address function_entry, relocInfo::relocType rt); +#else // Call a C function via a function descriptor and use full C // calling conventions. Updates and returns _last_calls_return_pc. address call_c(Register function_descriptor); @@ -315,6 +329,7 @@ address call_c(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt); address call_c_using_toc(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt, Register toc); +#endif protected: @@ -649,6 +664,11 @@ void _verify_method_ptr(Register reg, const char * msg, const char * file, int line) {} void _verify_klass_ptr(Register reg, const char * msg, const char * file, int line) {} + // Convenience method returning function entry. For the ELFv1 case + // creates function descriptor at the current address and returs + // the pointer to it. For the ELFv2 case returns the current address. + inline address function_entry(); + #define verify_method_ptr(reg) _verify_method_ptr(reg, "broken method " #reg, __FILE__, __LINE__) #define verify_klass_ptr(reg) _verify_klass_ptr(reg, "broken klass " #reg, __FILE__, __LINE__)