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Diffstat (limited to 'bfd/libhppa.h')
| -rw-r--r-- | bfd/libhppa.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/bfd/libhppa.h b/bfd/libhppa.h index 7fc52e46b79..05256a201db 100644 --- a/bfd/libhppa.h +++ b/bfd/libhppa.h @@ -177,6 +177,21 @@ enum hppa_reloc_expr_type_alt }; +/* Relocations for function calls must be accompanied by parameter + relocation bits. These bits describe exactly where the caller has + placed the function's arguments and where it expects to find a return + value. + + Both ELF and SOM encode this information within the addend field + of the call relocation. (Note this could break very badly if one + was to make a call like bl foo + 0x12345678). + + The high order 10 bits contain parameter relocation information, + the low order 22 bits contain the constant offset. */ + +#define HPPA_R_ARG_RELOC(a) (((a) >> 22) & 0x3FF) +#define HPPA_R_CONSTANT(a) ((((int)(a)) << 10) >> 10) +#define HPPA_R_ADDEND(r,c) (((r) << 22) + ((c) & 0x3FFFFF)) #define HPPA_WIDE (0) /* PSW W-bit, need to check! FIXME */ /* These macros get bit fields using HP's numbering (MSB = 0), |