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- moved new_exception and free_exception to ncgutils

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This commit is contained in:
carl 2002-08-09 19:10:05 +00:00
parent 528d042442
commit 1b79ac2058
1 changed files with 4 additions and 53 deletions
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57
compiler/cgobj.pas
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@ -249,25 +249,6 @@ unit cgobj;
procedure g_flags2reg(list: taasmoutput; size: TCgSize; const f: tresflags; reg: TRegister); virtual; abstract;
procedure g_flags2ref(list: taasmoutput; size: TCgSize; const f: tresflags; const ref:TReference); virtual;
{#
Allocate the buffers for exception management and setjmp environment.
Return a pointer to these buffers, send them to the utility routine
so they are registered, and then call setjmp.
Then compare the result of setjmp with 0, and if not equal
to zero, then jump to exceptlabel.
Also store the result of setjmp to a temporary space by calling g_save_exception_reason
It is to note that this routine may be called *after* the stackframe of a
routine has been called, therefore on machines where the stack cannot
be modified, all temps should be allocated on the heap instead of the
stack.
}
procedure g_new_exception(list : taasmoutput;var jmpbuf,envbuf, href : treference;
a : aword; exceptlabel : tasmlabel);virtual;
procedure g_free_exception(list : taasmoutput;var jmpbuf, envbuf, href : treference;
a : aword ; endexceptlabel : tasmlabel; onlyfree : boolean);virtual;
{#
This routine is used in exception management nodes. It should
@ -1464,39 +1445,6 @@ unit cgobj;
end;
procedure tcg.g_new_exception(list : taasmoutput;var jmpbuf,envbuf, href : treference;
a : aword; exceptlabel : tasmlabel);
begin
tg.gettempofsizereferencepersistant(exprasmlist,24,jmpbuf);
tg.gettempofsizereferencepersistant(exprasmlist,12,envbuf);
a_paramaddr_ref(exprasmlist,envbuf,paramanager.getintparaloc(3));
a_paramaddr_ref(exprasmlist,jmpbuf,paramanager.getintparaloc(2));
{ push type of exceptionframe }
a_param_const(exprasmlist,OS_S32,1,paramanager.getintparaloc(1));
a_call_name(exprasmlist,'FPC_PUSHEXCEPTADDR');
a_param_reg(exprasmlist,OS_ADDR,accumulator,paramanager.getintparaloc(1));
a_call_name(exprasmlist,'FPC_SETJMP');
tg.gettempofsizereferencepersistant(exprasmlist,sizeof(aword),href);
g_exception_reason_save(list, href);
a_cmp_const_reg_label(exprasmlist,OS_S32,OC_NE,0,accumulator,exceptlabel);
end;
procedure tcg.g_free_exception(list : taasmoutput;var jmpbuf, envbuf, href : treference;
a : aword ; endexceptlabel : tasmlabel; onlyfree : boolean);
begin
cg.a_call_name(exprasmlist,'FPC_POPADDRSTACK');
tg.ungetpersistanttempreference(exprasmlist,jmpbuf);
tg.ungetpersistanttempreference(exprasmlist,envbuf);
if not onlyfree then
begin
g_exception_reason_load(list, href);
cg.a_cmp_const_reg_label(exprasmlist,OS_S32,OC_EQ,a,accumulator,endexceptlabel);
end;
end;
@ -1522,7 +1470,10 @@ finalization
end.
{
$Log$
Revision 1.43 2002-08-05 18:27:48 carl
Revision 1.44 2002-08-09 19:10:05 carl
- moved new_exception and free_exception to ncgutils
Revision 1.43 2002/08/05 18:27:48 carl
+ more more more documentation
+ first version include/exclude (can't test though, not enough scratch for i386 :()...