diff options
| author | Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> | 1996-11-14 09:44:34 -0200 |
|---|---|---|
| committer | Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> | 1996-11-14 09:44:34 -0200 |
| commit | d991def36c313a5d10bc9f6769fc3ec2307dd60b (patch) | |
| tree | 66345b0c545604de1a7fb5f0225d7712be827ad1 /undump.c | |
| parent | 8b195533d2b9576b339c8cf95c03bf13aec955a2 (diff) | |
| download | lua-github-d991def36c313a5d10bc9f6769fc3ec2307dd60b.tar.gz | |
added 3 new bytes to header (sizeof's)
Diffstat (limited to 'undump.c')
| -rw-r--r-- | undump.c | 18 |
1 files changed, 14 insertions, 4 deletions
@@ -3,7 +3,7 @@ ** load bytecodes from files */ -char* rcs_undump="$Id: undump.c,v 1.15 1996/11/07 13:59:51 lhf Exp lhf $"; +char* rcs_undump="$Id: undump.c,v 1.16 1996/11/07 14:13:28 lhf Exp lhf $"; #include <stdio.h> #include <string.h> @@ -90,7 +90,7 @@ static void FixCode(Byte* code, Byte* end) /* swap words */ p+=3; break; case PUSHFUNCTION: - p+=5; + p+=5; /* TODO: use sizeof(TFunc*) or old? */ break; case PUSHWORD: case PUSHSELF: @@ -111,7 +111,7 @@ static void FixCode(Byte* code, Byte* end) /* swap words */ p+=3; break; } - case PUSHFLOAT: + case PUSHFLOAT: /* assumes sizeof(float)==4 */ { Byte t; t=p[1]; p[1]=p[4]; p[4]=t; @@ -250,8 +250,18 @@ static void LoadHeader(FILE* D) /* TODO: error handling */ { Word w,tw=TEST_WORD; float f,tf=TEST_FLOAT; + int version; LoadSignature(D); - getc(D); /* skip version */ + version=getc(D); + if (version>23) /* after 2.5 */ + { + int oldsizeofI=getc(D); + int oldsizeofF=getc(D); + int oldsizeofP=getc(D); + if (oldsizeofF!=4) lua_error("sizeof(float)!=4. not an IEEE machine?"); + if (oldsizeofFP!=sizeof(TFunc*)) /* TODO: pack */ + lua_error("different pointer sizes"); + } fread(&w,sizeof(w),1,D); /* test word */ if (w!=tw) { |