stacks_sigsegv.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "gp_config.h"
#include "engine_pl.h"

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Macros
#define	M_MAGIC1   0x12345678
#define	M_MAGIC2   0xdeadbeef
#define	MAX_SIGSEGV_HANDLER   10
#define	ERR_STACKS_ALLOCATION   "Memory allocation fault"
#define	ERR_CANNOT_OPEN_DEV0   "Cannot open /dev/zero : %s"
#define	ERR_CANNOT_UNMAP   "unmap failed : %s"
#define	ERR_CANNOT_FREE   "VirtualFree failed : %" PL_FMT_u
#define	ERR_CANNOT_PROTECT   "VirtualProtect failed : %" PL_FMT_u
#define	ERR_STACK_OVERFLOW_ENV   "%s stack overflow (size: %d Kb, reached: %d Kb, environment variable used: %s)"
#define	ERR_STACK_OVERFLOW_NO_ENV   "%s stack overflow (size: %d Kb, reached: %d Kb - fixed size)"
#define	Round_Up(x, y)   (((x) + (y) - 1) / (y) * (y))
#define	Round_Down(x, y)   ((x) / (y) * (y))

Functions
static void	Install_SIGSEGV_Handler (void)
static void	SIGSEGV_Handler ()
static void	Handle_Bad_Address (void *bad_addr)
static int	Default_SIGSEGV_Handler (void *bad_addr)
static char *	Stack_Overflow_Err_Msg (int stk_nb)
static void *	Virtual_Mem_Alloc (void *addr, int length)
static void	Virtual_Mem_Protect (void *addr, int length)
void	Pl_Allocate_Stacks (void)
static LONG WINAPI	Win32_Exception_Handler (LPEXCEPTION_POINTERS ei)
void	Pl_Push_SIGSEGV_Handler (SegvHdlr handler)
void	Pl_Pop_SIGSEGV_Handler (void)

Variables
static int	page_size
static SegvHdlr	tbl_handler [MAX_SIGSEGV_HANDLER]
static int	nb_handler = 0

Macro Definition Documentation

#define ERR_CANNOT_FREE   "VirtualFree failed : %" PL_FMT_u

#define ERR_CANNOT_OPEN_DEV0   "Cannot open /dev/zero : %s"

#define ERR_CANNOT_PROTECT   "VirtualProtect failed : %" PL_FMT_u

#define ERR_CANNOT_UNMAP   "unmap failed : %s"

#define ERR_STACK_OVERFLOW_ENV   "%s stack overflow (size: %d Kb, reached: %d Kb, environment variable used: %s)"

#define ERR_STACK_OVERFLOW_NO_ENV   "%s stack overflow (size: %d Kb, reached: %d Kb - fixed size)"

#define ERR_STACKS_ALLOCATION   "Memory allocation fault"

#define M_MAGIC1   0x12345678

#define M_MAGIC2   0xdeadbeef

#define MAX_SIGSEGV_HANDLER   10

#define Round_Down	(		x,
			y
	)		((x) / (y) * (y))

#define Round_Up	(		x,
			y
	)		(((x) + (y) - 1) / (y) * (y))

Function Documentation

static int Default_SIGSEGV_Handler ( void *  bad_addr )

static

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static void Handle_Bad_Address ( void *  bad_addr )

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static void Install_SIGSEGV_Handler ( void  )

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void Pl_Allocate_Stacks

(

void

)

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void Pl_Pop_SIGSEGV_Handler

(

void

)

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void Pl_Push_SIGSEGV_Handler

(

SegvHdlr

handler

)

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static void SIGSEGV_Handler ( )

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static char * Stack_Overflow_Err_Msg ( int  stk_nb )

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static void* Virtual_Mem_Alloc ( void *  addr, int  length  )

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static void Virtual_Mem_Protect ( void *  addr, int  length  )

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static LONG WINAPI Win32_Exception_Handler ( LPEXCEPTION_POINTERS  ei )

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Variable Documentation

int nb_handler = 0

static

int page_size

static

SegvHdlr tbl_handler[MAX_SIGSEGV_HANDLER]

static