40 lines
766 B
C
40 lines
766 B
C
#include <errno.h>
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#include <unistd.h>
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#include <sys/ptrace.h>
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#include <sys/syscall.h>
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#include <asm/ldt.h>
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#include "sysdep/tls.h"
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#include "uml-config.h"
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/* TLS support - we basically rely on the host's one.*/
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#ifndef PTRACE_GET_THREAD_AREA
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#define PTRACE_GET_THREAD_AREA 25
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#endif
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#ifndef PTRACE_SET_THREAD_AREA
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#define PTRACE_SET_THREAD_AREA 26
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#endif
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int os_set_thread_area(user_desc_t *info, int pid)
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{
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int ret;
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ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number,
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(unsigned long) info);
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if (ret < 0)
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ret = -errno;
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return ret;
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}
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int os_get_thread_area(user_desc_t *info, int pid)
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{
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int ret;
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ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number,
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(unsigned long) info);
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if (ret < 0)
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ret = -errno;
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return ret;
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}
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