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| author | Ian Lance Taylor <ian@airs.com> | 1993-07-22 18:03:51 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1993-07-22 18:03:51 +0000 |
| commit | 66a277abe2b75c998a0549c7818e8c10e5f6be31 (patch) | |
| tree | c7044e5652bcb27c59a438f234a4c33989cb3d52 /bfd/bfd-in2.h | |
| parent | c2ac84cbbc67569776217765d2bccadbfac07e1f (diff) | |
| download | gdb-66a277abe2b75c998a0549c7818e8c10e5f6be31.zip gdb-66a277abe2b75c998a0549c7818e8c10e5f6be31.tar.gz gdb-66a277abe2b75c998a0549c7818e8c10e5f6be31.tar.bz2 | |
* reloc.c (enum complain_overflow): New enumeration with the
various flavours of overflow checking.
(srtuct reloc_howto_struct): Changed complain_on_overflow field
from boolean to emum complain_overflow. Removed obsolete absolute
field.
(HOWTO): Removed absolute argument.
(bfd_perform_relocation): Do overflow checking on all types of
fields.
* bfd-in2.h: Updated accordingly.
* all targets: Updated initialization of reloc howto tables.
Diffstat (limited to 'bfd/bfd-in2.h')
| -rw-r--r-- | bfd/bfd-in2.h | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index 276e051..720c595 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -955,6 +955,23 @@ typedef struct reloc_cache_entry CONST struct reloc_howto_struct *howto; } arelent; +enum complain_overflow +{ + /* Do not complain on overflow. */ + complain_overflow_dont, + + /* Complain if the bitfield overflows, whether it is considered + as signed or unsigned. */ + complain_overflow_bitfield, + + /* Complain if the value overflows when considered as signed + number. */ + complain_overflow_signed, + + /* Complain if the value overflows when considered as an + unsigned number. */ + complain_overflow_unsigned +}; typedef CONST struct reloc_howto_struct { @@ -975,7 +992,8 @@ typedef CONST struct reloc_howto_struct result is to be subtracted from the data. */ int size; - /* Now obsolete? But m68k-coff still uses it... */ + /* The number of bits in the item to be relocated. This is used + when doing overflow checking. */ unsigned int bitsize; /* Notes that the relocation is relative to the location in the @@ -984,14 +1002,13 @@ typedef CONST struct reloc_howto_struct being relocated. */ boolean pc_relative; + /* The bit position of the reloc value in the destination. + The relocated value is left shifted by this amount. */ unsigned int bitpos; - /* Now obsolete */ - boolean absolute; - - /* Causes the relocation routine to return an error if overflow - is detected when relocating. */ - boolean complain_on_overflow; + /* What type of overflow error should be checked for when + relocating. */ + enum complain_overflow complain_on_overflow; /* If this field is non null, then the supplied function is called rather than the normal function. This allows really @@ -1036,9 +1053,9 @@ typedef CONST struct reloc_howto_struct boolean pcrel_offset; } reloc_howto_type; -#define HOWTO(C, R,S,B, P, BI, ABS, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ - {(unsigned)C,R,S,B, P, BI, ABS,O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC} -#define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,false,false,FUNCTION, NAME,false,0,0,IN) +#define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ + {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC} +#define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN) #define HOWTO_PREPARE(relocation, symbol) \ { \ |