| 78,36 → 78,36 |
|---|
| # and call exc_dispatch(). |
| # |
| .macro handler i n |
| push %eax |
| |
| /* |
| * Test if this is interrupt with error word or not. |
| * Be careful about width of the shift. |
| * This macro distinguishes between two versions of ia32 exceptions. |
| * One version has error word and the other does not have it. |
| * The latter version fakes the error word on the stack so that the |
| * handlers and istate_t can be the same for both types. |
| */ |
| |
| .iflt \i-32 |
| movl $(1<<\i), %eax |
| .else |
| movl $0, %eax |
| .endif |
| andl $ERROR_WORD_INTERRUPT_LIST, %eax |
| movl (%esp), %eax |
| .if (1 << \i) & ERROR_WORD_INTERRUPT_LIST |
| /* |
| * Version with error word. |
| * Just take space equal to subl $4, %esp. |
| */ |
| nop |
| nop |
| nop |
| .else |
| /* |
| * Version without error word, |
| */ |
| subl $4, %esp |
| .endif |
| .else |
| /* |
| * Version without error word, |
| */ |
| subl $4, %esp |
| .endif |
| |
| /* |
| * If this interrupt/exception stores error word, |
| * we need to pop EAX. |
| * If this interrupt doesn't store error word, we emulate it |
| * for the sake of consistent istate structure. In that case |
| * we merely leave the EAX on the stack. |
| */ |
| jz 0f |
| |
| /* |
| * This exception stores error word. |
| * Remove EAX from the stack. |
| */ |
| addl $4, %esp |
| |
| 0: |
| pusha |
| movl %esp, %ebp |
| push %ds |
| 138,7 → 138,7 |
|---|
| popfl |
| |
| popa |
| addl $4,%esp # Skip error word, whether real or fake. |
| addl $4,%esp # Skip error word, no matter whether real or fake. |
| iret |
| |
| .if (\n-\i)-1 |