mirror of
https://github.com/checkpoint-restore/criu
synced 2025-09-05 00:35:23 +00:00
19fadee9d9
And use it in CRIU directly instead: - move syscalls into compel/arch/ARCH/plugins/std/syscalls - drop old symlinks - no build for 32bit on x86 as expected - use std.built-in.o inside criu directly (compel_main stub) - drop syscalls on x86 criu directory, I copied them already in first compel commist, so we can't move them now, but delete in place Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com> Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
35 lines
714 B
ArmAsm
35 lines
714 B
ArmAsm
#include "common/asm/linkage.h"
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@ We use the register R8 unlike libc that uses R12.
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@ This avoids corruption of the register by the stub
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@ for the syscall sys_munmap() when syscalls are hooked
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@ by ptrace(). However we have to make sure that
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@ the compiler doesn't use the register on the route
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@ between parasite_service() and sys_munmap().
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syscall_common:
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ldr r7, [r7]
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add r8, sp, #24
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ldm r8, {r4, r5, r6}
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svc 0x00000000
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pop {r4, r5, r6, r7, r8, pc}
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.macro syscall name, nr
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.nr_\name :
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.long \nr
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ENTRY(\name)
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push {r4, r5, r6, r7, r8, lr}
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adr r7, .nr_\name
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b syscall_common
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END(\name)
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.endm
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ENTRY(__cr_restore_rt)
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adr r7, .nr_sys_rt_sigreturn
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ldr r7, [r7]
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svc #0
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END(__cr_restore_rt)
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