diff options
Diffstat (limited to 'gdb/aarch64-linux-tdep.c')
| -rw-r--r-- | gdb/aarch64-linux-tdep.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c index 9d6ed35..0000b49 100644 --- a/gdb/aarch64-linux-tdep.c +++ b/gdb/aarch64-linux-tdep.c @@ -1980,40 +1980,6 @@ aarch64_linux_decode_memtag_section (struct gdbarch *gdbarch, return tags; } -/* AArch64 implementation of the remove_non_address_bits gdbarch hook. Remove - non address bits from a pointer value. */ - -static CORE_ADDR -aarch64_remove_non_address_bits (struct gdbarch *gdbarch, CORE_ADDR pointer) -{ - aarch64_gdbarch_tdep *tdep = gdbarch_tdep<aarch64_gdbarch_tdep> (gdbarch); - - /* By default, we assume TBI and discard the top 8 bits plus the VA range - select bit (55). */ - CORE_ADDR mask = AARCH64_TOP_BITS_MASK; - - if (tdep->has_pauth ()) - { - /* Fetch the PAC masks. These masks are per-process, so we can just - fetch data from whatever thread we have at the moment. - - Also, we have both a code mask and a data mask. For now they are the - same, but this may change in the future. */ - struct regcache *regs = get_current_regcache (); - CORE_ADDR cmask, dmask; - - if (regs->cooked_read (tdep->pauth_reg_base, &dmask) != REG_VALID) - dmask = mask; - - if (regs->cooked_read (tdep->pauth_reg_base + 1, &cmask) != REG_VALID) - cmask = mask; - - mask |= aarch64_mask_from_pac_registers (cmask, dmask); - } - - return aarch64_remove_top_bits (pointer, mask); -} - static void aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -2066,12 +2032,6 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) /* Syscall record. */ tdep->aarch64_syscall_record = aarch64_linux_syscall_record; - /* The top byte of a user space address known as the "tag", - is ignored by the kernel and can be regarded as additional - data associated with the address. */ - set_gdbarch_remove_non_address_bits (gdbarch, - aarch64_remove_non_address_bits); - /* MTE-specific settings and hooks. */ if (tdep->has_mte ()) { |