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| author | Luca Dariz <luca@orpolo.org> | 2023-02-12 18:28:11 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-02-12 18:41:18 +0100 |
| commit | 19d5c54a76c6ff1b96c2860ab3fd50af9e81c5b5 (patch) | |
| tree | 3b76474e9ff88ab9d02972cef6532223e1a03de0 /x86_64/locore.S | |
| parent | 7150aa22ccc847af70a69cd8f53b3195825e2d0e (diff) | |
| download | gnumach-19d5c54a76c6ff1b96c2860ab3fd50af9e81c5b5.tar.gz gnumach-19d5c54a76c6ff1b96c2860ab3fd50af9e81c5b5.tar.bz2 gnumach-19d5c54a76c6ff1b96c2860ab3fd50af9e81c5b5.zip | |
fix x86_64 asm for higher kernel addresses
* x86_64/interrupt.S: use 64-bit registers as variables could be
stored at high addresses
* x86_64/locore.S: Likewise
Message-Id: <20230212172818.1511405-3-luca@orpolo.org>
Diffstat (limited to 'x86_64/locore.S')
| -rw-r--r-- | x86_64/locore.S | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/x86_64/locore.S b/x86_64/locore.S index 95ece3cc..c54b5cd8 100644 --- a/x86_64/locore.S +++ b/x86_64/locore.S @@ -1152,7 +1152,7 @@ syscall_native: #endif shll $5,%eax /* manual indexing of mach_trap_t */ xorq %r10,%r10 - movl EXT(mach_trap_table)(%eax),%r10d + mov EXT(mach_trap_table)(%rax),%r10 /* get number of arguments */ andq %r10,%r10 jz mach_call_call /* skip argument copy if none */ @@ -1199,9 +1199,7 @@ mach_call_call: /* will return with syscallofs still (or again) in eax */ 0: #endif /* DEBUG */ - - call *EXT(mach_trap_table)+8(%eax) - /* call procedure */ + call *EXT(mach_trap_table)+8(%rax) /* call procedure */ movq %rsp,%rcx /* get kernel stack */ or $(KERNEL_STACK_SIZE-1),%rcx movq -7-IKS_SIZE(%rcx),%rsp /* switch back to PCB stack */ |