Preserve syscall return value in RAX

2026-01-08 23:06:32 +01:00
parent 0555ddd041
commit 79768d94e6
4 changed files with 24 additions and 7 deletions
--- a/kernel/amd64/regsasm.h
+++ b/kernel/amd64/regsasm.h
@@ -35,4 +35,21 @@
  popq % rcx;                                                                                      \
  popq % rax;

+#define pop_regs_skip_rax                                                                          \
+  popq % r15;                                                                                      \
+  popq % r14;                                                                                      \
+  popq % r13;                                                                                      \
+  popq % r12;                                                                                      \
+  popq % r11;                                                                                      \
+  popq % r10;                                                                                      \
+  popq % r9;                                                                                       \
+  popq % r8;                                                                                       \
+  popq % rbx;                                                                                      \
+  popq % rbp;                                                                                      \
+  popq % rdi;                                                                                      \
+  popq % rsi;                                                                                      \
+  popq % rdx;                                                                                      \
+  popq % rcx;                                                                                      \
+  addq $8, % rsp
+
 #endif // _KERNEL_AMD64_REGSASM_H