On Tue, Sep 28, 2021 at 3:42 AM Richard Henderson
wrote:
> On 9/24/21 2:01 PM, Philippe Mathieu-Daudé wrote:
> >> +static void install_sigtramp(void *tramp)
> >> +{
> >> +/* This is popl %eax ; movl $syscall,%eax ; int $0x80 */
> >> +__put_user(0xb858, (uint16_t *)(tramp + 0));
> >> +_
On 9/24/21 2:01 PM, Philippe Mathieu-Daudé wrote:
+static void install_sigtramp(void *tramp)
+{
+ /* This is popl %eax ; movl $syscall,%eax ; int $0x80 */
+ __put_user(0xb858, (uint16_t *)(tramp + 0));
+ __put_user(TARGET_NR_sigreturn, (int *)(tramp + 2));
I know this is mostly code mo
On 9/24/21 18:59, Richard Henderson wrote:
Create and record the two signal trampolines.
Use them when the guest does not use SA_RESTORER.
Note that x86_64 does not use this code.
Signed-off-by: Richard Henderson
---
linux-user/i386/target_signal.h | 2 ++
linux-user/x86_64/target_signal.
Create and record the two signal trampolines.
Use them when the guest does not use SA_RESTORER.
Note that x86_64 does not use this code.
Signed-off-by: Richard Henderson
---
linux-user/i386/target_signal.h | 2 ++
linux-user/x86_64/target_signal.h | 3 ++
linux-user/i386/signal.c |
