Files
jsix_import/src/kernel/debug.s
Justin C. Miller 8966380ef9 [build] Warn on zero-length symbols when building symbol table
Make build_symbol_table.py output statistics on the symbol table it
builds, and emit warnings for zero-length symbols. Also added lengths to
several functions defined in asm that this uncovered.
2023-02-06 00:37:26 -08:00

40 lines
779 B
ArmAsm

global get_rsp: function hidden (get_rsp.end - get_rsp)
get_rsp:
mov rax, rsp
ret
.end:
global get_rip: function hidden (get_rip.end - get_rip)
get_rip:
pop rax ; do the same thing as 'ret', except with 'jmp'
jmp rax ; with the return address still in rax
.end:
global get_caller: function hidden (get_caller.end - get_caller)
get_caller:
; No prelude - don't touch rsp or rbp
mov rax, [rbp+8]
ret
.end:
global get_grandcaller: function hidden (get_grandcaller.end - get_grandcaller)
get_grandcaller:
; No prelude - don't touch rsp or rbp
mov rax, [rbp]
mov rax, [rax+8]
ret
.end:
global get_gsbase: function hidden (get_gsbase.end - get_gsbase)
get_gsbase:
rdgsbase rax
ret
.end:
global _halt: function hidden (_halt.end - _halt)
_halt:
hlt
jmp _halt
.end: