diff options
Diffstat (limited to 'libebl')
| -rw-r--r-- | libebl/ChangeLog | 6 | ||||
| -rw-r--r-- | libebl/eblabicfi.c | 6 | ||||
| -rw-r--r-- | libebl/libebl.h | 6 | ||||
| -rw-r--r-- | libebl/libeblP.h | 6 |
4 files changed, 24 insertions, 0 deletions
diff --git a/libebl/ChangeLog b/libebl/ChangeLog index d040c08f..a1a10224 100644 --- a/libebl/ChangeLog +++ b/libebl/ChangeLog @@ -1,3 +1,9 @@ +2015-12-08 Jose E. Marchesi <jose.marchesi@oracle.com> + + * libebl.h: Prototype for ebl_ra_offset. + * eblabicfi.c (ebl_ra_offset): New function. + * libeblP.h (struct ebl): new field ra_offset; + 2015-09-24 Jose E. Marchesi <jose.marchesi@oracle.com> * Makefile.am (AM_CFLAGS): Use -fPIC instead of -fpic to avoid diff --git a/libebl/eblabicfi.c b/libebl/eblabicfi.c index 6b0e18e4..8bf189f1 100644 --- a/libebl/eblabicfi.c +++ b/libebl/eblabicfi.c @@ -38,3 +38,9 @@ ebl_abi_cfi (Ebl *ebl, Dwarf_CIE *abi_info) { return ebl == NULL ? -1 : ebl->abi_cfi (ebl, abi_info); } + +int +ebl_ra_offset (Ebl *ebl) +{ + return ebl->ra_offset; +} diff --git a/libebl/libebl.h b/libebl/libebl.h index 7dbf4608..efcb6d60 100644 --- a/libebl/libebl.h +++ b/libebl/libebl.h @@ -422,6 +422,12 @@ extern bool ebl_set_initial_registers_tid (Ebl *ebl, extern size_t ebl_frame_nregs (Ebl *ebl) __nonnull_attribute__ (1); +/* Offset to apply to the value of the return_address_register, as + fetched from a Dwarf CFI. This is used by some backends, where the + return_address_register actually contains the call address. */ +extern int ebl_ra_offset (Ebl *ebl) + __nonnull_attribute__ (1); + /* Mask to use for function symbol or unwind return addresses in case the architecture adds some extra non-address bits to it. This is different from ebl_resolve_sym_value which only works for actual diff --git a/libebl/libeblP.h b/libebl/libeblP.h index dbd67f3e..5b339b31 100644 --- a/libebl/libeblP.h +++ b/libebl/libeblP.h @@ -64,6 +64,12 @@ struct ebl Ebl architecture can unwind iff FRAME_NREGS > 0. */ size_t frame_nregs; + /* Offset to apply to the value of the return_address_register, as + fetched from a Dwarf CFI. This is used by some backends, where + the return_address_register actually contains the call + address. */ + int ra_offset; + /* Mask to use to turn a function value into a real function address in case the architecture adds some extra non-address bits to it. If not initialized (0) then ebl_func_addr_mask will return ~0, |