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dwarf2 EH support

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From-SVN: r15257
This commit is contained in:
Jason Merrill 1997-09-10 14:02:36 -04:00
parent 9dfc6eba89
commit 4877a06fa4
1 changed files with 35 additions and 0 deletions
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35
gcc/frame.h Normal file
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/* Copyright (C) 1997 Free Software Foundation, Inc.
This file is part of GNU CC. */
typedef struct frame_state
{
void *cfa;
void *eh_ptr;
long cfa_offset;
long args_size;
long reg_or_offset[FIRST_PSEUDO_REGISTER+1];
unsigned short cfa_reg;
unsigned short retaddr_column;
char saved[FIRST_PSEUDO_REGISTER+1];
} frame_state;
/* Values for 'saved' above. */
#define REG_UNSAVED 0
#define REG_SAVED_OFFSET 1
#define REG_SAVED_REG 2
/* Called either from crtbegin.o or a static constructor to register the
unwind info for an object or translation unit, respectively. */
extern void __register_frame (void *);
/* Called from crtend.o to deregister the unwind info for an object. */
extern void __deregister_frame (void *);
/* Called from __throw to find the registers to restore for a given
PC_TARGET. The caller should allocate a local variable of `struct
frame_state' (declared in frame.h) and pass its address to STATE_IN.
Returns NULL on failure, otherwise returns STATE_IN. */
extern struct frame_state *__frame_state_for (void *, struct frame_state *);