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| author | Luca Dariz <luca@orpolo.org> | 2023-02-12 18:28:16 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-02-12 19:07:26 +0100 |
| commit | f8d840ae46e014d3c65021e169c32e5e39c9ab5a (patch) | |
| tree | 9f3172a158b7cb64515c80845d6c0f706cc5e565 /x86_64/locore.S | |
| parent | 1956a5e0f56793e11edc8fcf0a66fb68c1e4049d (diff) | |
| download | gnumach-f8d840ae46e014d3c65021e169c32e5e39c9ab5a.tar.gz gnumach-f8d840ae46e014d3c65021e169c32e5e39c9ab5a.tar.bz2 gnumach-f8d840ae46e014d3c65021e169c32e5e39c9ab5a.zip | |
extend data types to hold a 64-bit address
* i386/i386/trap.c: change from int to a proper type to hold a
register value
* x86_64/locore.S: use 64-bit register to avoid address truncation
Message-Id: <20230212172818.1511405-8-luca@orpolo.org>
Diffstat (limited to 'x86_64/locore.S')
| -rw-r--r-- | x86_64/locore.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/x86_64/locore.S b/x86_64/locore.S index c54b5cd8..a2663aff 100644 --- a/x86_64/locore.S +++ b/x86_64/locore.S @@ -590,7 +590,7 @@ trap_from_kernel: ENTRY(thread_exception_return) ENTRY(thread_bootstrap_return) movq %rsp,%rcx /* get kernel stack */ - or $(KERNEL_STACK_SIZE-1),%ecx + or $(KERNEL_STACK_SIZE-1),%rcx movq -7-IKS_SIZE(%rcx),%rsp /* switch back to PCB stack */ jmp _return_from_trap @@ -603,7 +603,7 @@ ENTRY(thread_bootstrap_return) ENTRY(thread_syscall_return) movq S_ARG0,%rax /* get return value */ movq %rsp,%rcx /* get kernel stack */ - or $(KERNEL_STACK_SIZE-1),%ecx + or $(KERNEL_STACK_SIZE-1),%rcx movq -7-IKS_SIZE(%rcx),%rsp /* switch back to PCB stack */ movq %rax,R_EAX(%rsp) /* save return value */ jmp _return_from_trap |