Functions
const void *	page_address (const void *addr)
void *	page_address (void *addr)
void *	next_page_address (void *addr)
int	page_protect (void *addr, int prot)
template<typename T>
size_t	page_protect (T *addr, int prot)
	protect page containing addr, from page boundary to addr+sizeof(T).

Variables
str	__author__ = 'Wim Lavrijsen (WLavrijsen@lbl.gov)'
str	__doc__ = 'For details about athena.py, run "less `which athena.py`"'
	opts = aop.parse(legacy_args=True)
list	path_list = ['./'] + os.environ.get('PYTHONPATH', '').split(os.pathsep)
	file_path
	CA
	acc = pickle.load(f)
	value
	path
	python interpreter configuration --------------------------------------—
	ps1
	rename ourselfs to athena, both the prompt and the process (for top & ps)
	ps2
	libc = ctypes.cdll.LoadLibrary( ctypes_find_library('c') )
int	exitcode = 0
	run_name
	_msg = log
	_athena_python_profiler
const size_t	PAGESIZE = sysconf(_SC_PAGE_SIZE)

Detailed Description

date"

# defaults
export USETCMALLOC=0
export USEIMF=0
export USEEXCTRACE=0
export USEEXCABORT=1
otherargs=()
# but use tcmalloc by default if TCMALLOCDIR is defined
if [ -n "$TCMALLOCDIR" ]; then
    export USETCMALLOC=1
fi

# parse LD_PRELOAD related command line arguments
for a in "$@"
do
    case "$a" in
        --leak-check*)   USETCMALLOC=0;;
        --delete-check*) USETCMALLOC=0;;
        --stdcmalloc)    USETCMALLOC=0;;
        --tcmalloc)      USETCMALLOC=1;;
        --stdcmath)      USEIMF=0;;
        --imf)           USEIMF=1;;
        --exctrace)      USEEXCTRACE=1;;
        --no-excabort)   USEEXCABORT=0;;
        --preloadlib*)     export ATHENA_ADD_PRELOAD=${a#*=};;
        --drop-and-reload) ATHENA_DROP_RELOAD=1;;
        *)               otherargs+=("$a");;
    esac
done


# Do the actual preloading via LD_PRELOAD and save the original value
export LD_PRELOAD_ORIG=${LD_PRELOAD}
source `which athena_preload.sh `

# Now resurrect ourselves as python script
python_path=`which python`
"exec" "$python_path" "-tt" "$0" "$@";

Function Documentation

◆ next_page_address()

void * athena::next_page_address ( void * addr )

Definition at line 17 of file page_access.cxx.

                                      { 
    return (void*)(((long)addr & ~(PAGESIZE-1)) + PAGESIZE); 
  }

◆ page_address() [1/2]

const void * athena::page_address ( const void * addr )

Definition at line 11 of file page_access.cxx.

                                             { 
    return (const void*)((long)addr & ~(PAGESIZE-1)); 
  }

◆ page_address() [2/2]

void * athena::page_address ( void * addr )

Definition at line 14 of file page_access.cxx.

                                 { 
    return (void*)((long)addr & ~(PAGESIZE-1)); 
  }

◆ page_protect() [1/2]

template<typename T>

size_t athena::page_protect	(	T *	addr,
		int	prot )

protect page containing addr, from page boundary to addr+sizeof(T).

Returns: amount of mem protected (0 flags an error)

Definition at line 20 of file page_access.h.

                                       {
  void* pageAddr(page_address((void*)addr));
  size_t lProtected((long)addr-(long)pageAddr+sizeof(T));
  int rc=mprotect(pageAddr, lProtected, prot);
  if (rc) printf("page_protect WARNING: mprotect heap failed for address %p\n", (void*)addr);
#ifdef DEBUG
  else printf("page_protect DEBUG: set protection @%i for range @%lx - @%zx containing addr=%p\n",
          prot,(long unsigned int)page_address(addr),(long unsigned int)addr+sizeof(T), (void*)addr);
#endif
  return (rc == 0 ? lProtected : 0);
}

◆ page_protect() [2/2]

int athena::page_protect	(	void *	addr,
		int	prot )

Definition at line 21 of file page_access.cxx.

                                         {
    int rc=mprotect(page_address(addr), PAGESIZE, prot);
    if (rc) printf("page_protect WARNING: mprotect heap failed for void *address %p\n", addr);
#ifdef DEBUG
    else printf("page_protect DEBUG: set protection @%i for range @%zx - @%zx containing void* addr=%p\n",
        prot,(size_t)page_address(addr), 
        (size_t)page_address(addr) + PAGESIZE, addr);
#endif
    return rc;
  }

Variable Documentation

◆ author

str athena.__author__ = 'Wim Lavrijsen (WLavrijsen@lbl.gov)'

private

Definition at line 80 of file athena.py.

◆ doc

str athena.__doc__ = 'For details about athena.py, run "less `which athena.py`"'

private

Definition at line 81 of file athena.py.

◆ _athena_python_profiler

athena._athena_python_profiler

protected

Definition at line 203 of file athena.py.

◆ _msg

athena._msg = log

protected

Definition at line 189 of file athena.py.

◆ acc

athena.acc = pickle.load(f)

Definition at line 110 of file athena.py.

◆ CA

athena.CA

Definition at line 100 of file athena.py.

◆ exitcode

int athena.exitcode = 0

Definition at line 161 of file athena.py.

◆ file_path

athena.file_path

Initial value:

1= FindFile( os.path.expanduser( os.path.expandvars(opts.scripts[0]) ),

2 path_list, os.R_OK )

Definition at line 94 of file athena.py.

◆ libc

athena.libc = ctypes.cdll.LoadLibrary( ctypes_find_library('c') )

Definition at line 141 of file athena.py.

◆ opts

athena.opts = aop.parse(legacy_args=True)

Definition at line 88 of file athena.py.

◆ PAGESIZE

const size_t athena.PAGESIZE = sysconf(_SC_PAGE_SIZE)

Definition at line 9 of file page_access.cxx.

◆ path

athena.path

python interpreter configuration --------------------------------------—

Definition at line 128 of file athena.py.

◆ path_list

list athena.path_list = ['./'] + os.environ.get('PYTHONPATH', '').split(os.pathsep)

Definition at line 93 of file athena.py.

◆ ps1

athena.ps1

rename ourselfs to athena, both the prompt and the process (for top & ps)

Definition at line 135 of file athena.py.

◆ ps2

athena.ps2

Definition at line 136 of file athena.py.

◆ run_name

athena.run_name

Definition at line 166 of file athena.py.

◆ value

athena.value

Definition at line 124 of file athena.py.

Functions

Variables