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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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