tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-11 06:23:39 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

runtime: load sp and pc inside tinygo_longjmp

Browse Source 
This is a small change to make it easier to support architectures that
need to restore more than just the sp and pc registers. In particular,
it is needed for the AVR architecture that needs to restore the frame
pointer (Y register).
This commit is contained in:
Ayke van Laethem
2022-06-17 01:28:14 +02:00
committed by Ron Evans
parent c119721e3b
commit 49e22fe678
7 changed files with 24 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/runtime/asm_386.S
+3 -2
View File
@@ -28,6 +28,7 @@ tinygo_scanCurrentStack:
tinygo_longjmp:
// Note: the code we jump to assumes eax is set to a non-zero value if we
// jump from here.
movl 8(%esp), %eax // jumpPC (stash in volatile register)
movl 4(%esp), %esp // jumpSP
movl 4(%esp), %eax
movl 0(%eax), %esp // jumpSP
movl 4(%eax), %eax // jumpPC (stash in volatile register)
jmpl *%eax