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bsd-user/signal.c: setup_frame

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setup_frame sets up a signalled stack frame. Associated routines to
extract the pointer to the stack frame and to support alternate stacks.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-01-08 21:40:28 -07:00
parent c93cbac1f4
commit 46f4f76d33
3 changed files with 90 additions and 1 deletions
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3
bsd-user/qemu.h
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@ -107,7 +107,8 @@ typedef struct TaskState {
*/
sigset_t signal_mask;
uint8_t stack[];
/* This thread's sigaltstack, if it has one */
struct target_sigaltstack sigaltstack_used;
} __attribute__((aligned(16))) TaskState;
void stop_all_tasks(void);