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[libc] Split rmsetjmp() and rmlongjmp() into a separate rmsetjmp.h

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2016-02-16 15:48:03 +00:00
parent 7ecfe7159f
commit b9c4c2676b
7 changed files with 33 additions and 25 deletions

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@ -10,7 +10,7 @@
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <setjmp.h>
#include <rmsetjmp.h>
#include <ipxe/in.h>
/** Segment used for COMBOOT PSP and image */

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@ -10,7 +10,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <pxe_api.h>
#include <realmode.h>
#include <setjmp.h>
#include <rmsetjmp.h>
struct net_device;

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@ -0,0 +1,28 @@
#ifndef _RMSETJMP_H
#define _RMSETJMP_H
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <setjmp.h>
#include <realmode.h>
/** A real-mode-extended jump buffer */
typedef struct {
/** Jump buffer */
jmp_buf env;
/** Real-mode stack pointer */
segoff_t rm_stack;
} rmjmp_buf[1];
#define rmsetjmp( _env ) ( { \
(_env)->rm_stack.segment = rm_ss; \
(_env)->rm_stack.offset = rm_sp; \
setjmp ( (_env)->env ); } ) \
#define rmlongjmp( _env, _val ) do { \
rm_ss = (_env)->rm_stack.segment; \
rm_sp = (_env)->rm_stack.offset; \
longjmp ( (_env)->env, (_val) ); \
} while ( 0 )
#endif /* _RMSETJMP_H */

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@ -4,7 +4,6 @@
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <realmode.h>
/** A jump buffer */
typedef struct {
@ -22,29 +21,10 @@ typedef struct {
uint32_t ebp;
} jmp_buf[1];
/** A real-mode-extended jump buffer */
typedef struct {
/** Jump buffer */
jmp_buf env;
/** Real-mode stack pointer */
segoff_t rm_stack;
} rmjmp_buf[1];
extern int __asmcall __attribute__ (( returns_twice ))
setjmp ( jmp_buf env );
extern void __asmcall __attribute__ (( noreturn ))
longjmp ( jmp_buf env, int val );
#define rmsetjmp( _env ) ( { \
(_env)->rm_stack.segment = rm_ss; \
(_env)->rm_stack.offset = rm_sp; \
setjmp ( (_env)->env ); } ) \
#define rmlongjmp( _env, _val ) do { \
rm_ss = (_env)->rm_stack.segment; \
rm_sp = (_env)->rm_stack.offset; \
longjmp ( (_env)->env, (_val) ); \
} while ( 0 )
#endif /* _SETJMP_H */

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@ -27,7 +27,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/init.h>
#include <ipxe/profile.h>
#include <ipxe/netdevice.h>
#include <setjmp.h>
#include <rmsetjmp.h>
#include <registers.h>
#include <biosint.h>
#include <pxe.h>

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@ -33,7 +33,6 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <setjmp.h>
#include <ipxe/uaccess.h>
#include <ipxe/dhcp.h>
#include <ipxe/fakedhcp.h>
@ -44,6 +43,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/if_ether.h>
#include <basemem_packet.h>
#include <biosint.h>
#include <rmsetjmp.h>
#include "pxe.h"
#include "pxe_call.h"

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@ -32,7 +32,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <comboot.h>
#include <bzimage.h>
#include <pxe_call.h>
#include <setjmp.h>
#include <rmsetjmp.h>
#include <string.h>
#include <ipxe/posix_io.h>
#include <ipxe/process.h>