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dac494bf54
This adds the stub side for the new seccomp process management code. In this case we do register save/restore through the signal handler mcontext. Add special code for handling TLS, which for x86_64 means setting the FS_BASE/GS_BASE registers while for i386 it means calling the set_thread_area syscall. Co-authored-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net> Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://patch.msgid.link/20250602130052.545733-3-benjamin@sipsolutions.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
23 lines
461 B
C
23 lines
461 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ARCH_STUB_DATA_H
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#define __ARCH_STUB_DATA_H
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#ifdef __i386__
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#include <generated/asm-offsets.h>
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#include <asm/ldt.h>
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struct stub_data_arch {
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int sync;
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struct user_desc tls[UM_KERN_GDT_ENTRY_TLS_ENTRIES];
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};
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#else
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#define STUB_SYNC_FS_BASE (1 << 0)
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#define STUB_SYNC_GS_BASE (1 << 1)
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struct stub_data_arch {
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int sync;
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unsigned long fs_base;
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unsigned long gs_base;
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};
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#endif
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#endif /* __ARCH_STUB_DATA_H */
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