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src/os/aix/vm/loadlib_aix.hpp

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rev 9211 : 8140645: Recent Developments for AIX
Summary: Port recent developments from SAP for AIX to the OpenJDK

*** 32,128 **** #ifndef OS_AIX_VM_LOADLIB_AIX_HPP #define OS_AIX_VM_LOADLIB_AIX_HPP class outputStream; ! // This class holds information about a single loaded library module. // Note that on AIX, a single library can be spread over multiple // uintptr_t range on a module base, eg. // libC.a(shr3_64.o) or libC.a(shrcore_64.o). - class LoadedLibraryModule { ! friend class LoadedLibraries; ! char fullpath[512]; // eg /usr/lib/libC.a ! char shortname[30]; // eg libC.a ! char membername[30]; // eg shrcore_64.o ! const unsigned char* text_from; ! const unsigned char* text_to; ! const unsigned char* data_from; ! const unsigned char* data_to; ! public: ! ! const char* get_fullpath() const { ! return fullpath; ! } ! const char* get_shortname() const { ! return shortname; ! } ! const char* get_membername() const { ! return membername; ! } ! ! // text_from, text_to: returns the range of the text (code) ! // segment for that module ! const unsigned char* get_text_from() const { ! return text_from; ! } ! const unsigned char* get_text_to() const { ! return text_to; ! } ! ! // data_from/data_to: returns the range of the data ! // segment for that module ! const unsigned char* get_data_from() const { ! return data_from; ! } ! const unsigned char* get_data_to() const { ! return data_to; ! } ! ! // returns true if the ! bool is_in_text(const unsigned char* p) const { ! return p >= text_from && p < text_to ? true : false; ! } ! ! bool is_in_data(const unsigned char* p) const { ! return p >= data_from && p < data_to ? true : false; ! } ! ! // output debug info ! void print(outputStream* os) const; }; // end LoadedLibraryModule // This class is a singleton holding a map of all loaded binaries // in the AIX process space. class LoadedLibraries // : AllStatic (including allocation.hpp just for AllStatic is overkill.) { - private: - - enum {MAX_MODULES = 100}; - static LoadedLibraryModule tab[MAX_MODULES]; - static int num_loaded; - public: ! // rebuild the internal table of LoadedLibraryModule objects ! static void reload(); ! ! // checks whether the address p points to any of the loaded code segments. ! // If it does, returns the LoadedLibraryModule entry. If not, returns NULL. ! static const LoadedLibraryModule* find_for_text_address(const unsigned char* p); ! ! // checks whether the address p points to any of the loaded data segments. ! // If it does, returns the LoadedLibraryModule entry. If not, returns NULL. ! static const LoadedLibraryModule* find_for_data_address(const unsigned char* p); // output debug info static void print(outputStream* os); }; // end LoadedLibraries - #endif // OS_AIX_VM_LOADLIB_AIX_HPP --- 32,102 ---- #ifndef OS_AIX_VM_LOADLIB_AIX_HPP #define OS_AIX_VM_LOADLIB_AIX_HPP class outputStream; ! // Struct holds information about a single loaded library module. // Note that on AIX, a single library can be spread over multiple // uintptr_t range on a module base, eg. // libC.a(shr3_64.o) or libC.a(shrcore_64.o). ! // Note: all pointers to strings (path, member) point to strings which are immortal. ! struct loaded_module_t { ! // points to the full path of the lodaed module, e.g. ! // "/usr/lib/libC.a" ! const char* path; ! ! // host library name without path ! const char* shortname; ! ! // points to the object file (AIX specific stuff) ! // e.g "shrcore_64.o" ! const char* member; ! ! // text area from, to ! const void* text; ! size_t text_len; ! ! // data area from, to ! const void* data; ! size_t data_len; ! // true if this module is part of the vm ! bool is_in_vm; }; // end LoadedLibraryModule // This class is a singleton holding a map of all loaded binaries // in the AIX process space. class LoadedLibraries // : AllStatic (including allocation.hpp just for AllStatic is overkill.) { public: ! // rebuild the internal module table. If an error occurs, internal module ! // table remains untouched. ! static bool reload(); ! ! // check whether the given address points into the text segment of a ! // loaded module. Return true if this is the case. ! // Optionally, information about the module is returned (info) ! static bool find_for_text_address ( ! const void* p, ! loaded_module_t* info // optional, leave NULL if not needed. ! ); ! ! // check whether the given address points into the data segment of a ! // loaded module. Return true if this is the case. ! // Optionally, information about the module is returned (info) ! static bool find_for_data_address ( ! const void* p, ! loaded_module_t* info // optional, leave NULL if not needed. ! ); // output debug info static void print(outputStream* os); }; // end LoadedLibraries #endif // OS_AIX_VM_LOADLIB_AIX_HPP
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