mirror of
https://github.com/checkpoint-restore/criu.git
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20b7dafaac
To restore SAS we have two ways: - call for sigaltstack explicitly in restorer.c right before we call for sigreturn - pass stack value to sigreturn call and allow the kernel to restore stack for us Since second way is a simplier one -- we stick with it. [alekskartashov@: use RT_SIGFRAME_UC] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> CC: Alexander Kartashov <alekskartashov@parallels.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
37 lines
921 B
C
37 lines
921 B
C
#include <unistd.h>
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#include "restorer.h"
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#include "asm/restore.h"
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#include "asm/restorer.h"
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#include "protobuf/core.pb-c.h"
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int construct_sigframe(struct rt_sigframe *sigframe,
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struct rt_sigframe *rsigframe,
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CoreEntry *core)
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{
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k_rtsigset_t *blk_sigset = &RT_SIGFRAME_UC(sigframe).uc_sigmask;
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if (core->tc)
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memcpy(blk_sigset, &core->tc->blk_sigset, sizeof(k_rtsigset_t));
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else if (core->thread_core->has_blk_sigset) {
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memcpy(blk_sigset,
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&core->thread_core->blk_sigset, sizeof(k_rtsigset_t));
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} else
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memset(blk_sigset, 0, sizeof(k_rtsigset_t));
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sigframe->fpu_state.has_fpu = true;
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if (restore_fpu(sigframe, core))
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return -1;
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if (sigframe->fpu_state.has_fpu)
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if (sigreturn_prep_fpu_frame(sigframe, &rsigframe->fpu_state))
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return -1;
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if (restore_gpregs(sigframe, CORE_THREAD_ARCH_INFO(core)->gpregs))
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return -1;
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setup_sas(sigframe, core->thread_core->sas);
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return 0;
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}
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