8205153: Delete "standard instructions" machinery in the open automated tests
Reviewed-by: prr
/*
* Copyright (c) 2012, 2015 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
#ifndef OS_AIX_VM_PORTING_AIX_HPP
#define OS_AIX_VM_PORTING_AIX_HPP
#include <stddef.h>
// Header file to contain porting-relevant code which does not have a
// home anywhere else and which can not go into os_<platform>.h because
// that header is included inside the os class definition, hence all
// its content is part of the os class.
// Aix' own version of dladdr().
// This function tries to mimick dladdr(3) on Linux
// (see http://linux.die.net/man/3/dladdr)
// dladdr(3) is not POSIX but a GNU extension, and is not available on AIX.
//
// Differences between AIX dladdr and Linux dladdr:
//
// 1) Dl_info.dli_fbase: can never work, is disabled.
// A loaded image on AIX is divided in multiple segments, at least two
// (text and data) but potentially also far more. This is because the loader may
// load each member into an own segment, as for instance happens with the libC.a
// 2) Dl_info.dli_sname: This only works for code symbols (functions); for data, a
// zero-length string is returned ("").
// 3) Dl_info.dli_saddr: For code, this will return the entry point of the function,
// not the function descriptor.
typedef struct {
const char *dli_fname; // file path of loaded library
// void *dli_fbase;
const char *dli_sname; // symbol name; "" if not known
void *dli_saddr; // address of *entry* of function; not function descriptor;
} Dl_info;
// Note: we export this to use it inside J2se too
#ifdef __cplusplus
extern "C"
#endif
int dladdr(void *addr, Dl_info *info);
struct tbtable;
class AixSymbols {
public:
// Given a program counter, tries to locate the traceback table and returns info from
// it - e.g. function name, displacement of the pc inside the function, and the traceback
// table itself.
static bool get_function_name (
address pc, // [in] program counter
char* p_name, size_t namelen, // [out] optional: user provided buffer for the function name
int* p_displacement, // [out] optional: displacement
const struct tbtable** p_tb, // [out] optional: ptr to traceback table to get further information
bool demangle // [in] whether to demangle the name
);
// Given a program counter, returns the name of the module (library and module) the pc points to
static bool get_module_name (
address pc, // [in] program counter
char* p_name, size_t namelen // [out] module name
);
};
class AixNativeCallstack {
public:
// This function can be used independently from os::init();
static void print_callstack_for_context(outputStream* st, const ucontext_t* uc,
bool demangle,
char* buf, size_t buf_size);
};
class AixMisc {
public:
struct stackbounds_t {
address base; // high address (stack grows down)
size_t size;
};
// Invokes pthread_getthrds_np() and returns its values. Note: values are
// not aligned to stack page sizes.
// This function can be used independently from os::init();
static bool query_stack_bounds_for_current_thread(stackbounds_t* out);
};
#endif // OS_AIX_VM_PORTING_AIX_HPP