In what library on Linux are the system calls and how is this library linked to the executable object file that contains the system calls?
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I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are?
If there is such a library how is this library linked to the executable program?
kernel libraries dynamic-linking system-calls shared-library
asked Oct 9 '17 at 11:45
yoyo_fun
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up vote
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down vote
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I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are?
If there is such a library how is this library linked to the executable program?
kernel libraries dynamic-linking system-calls shared-library
asked Oct 9 '17 at 11:45
yoyo_fun
322412
1
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are?
If there is such a library how is this library linked to the executable program?
kernel libraries dynamic-linking system-calls shared-library
asked Oct 9 '17 at 11:45
yoyo_fun
322412
I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are?
If there is such a library how is this library linked to the executable program?
kernel libraries dynamic-linking system-calls shared-library
kernel libraries dynamic-linking system-calls shared-library
asked Oct 9 '17 at 11:45
yoyo_fun
322412
asked Oct 9 '17 at 11:45
yoyo_fun
322412
asked Oct 9 '17 at 11:45
yoyo_fun
322412
asked Oct 9 '17 at 11:45
yoyo_fun
322412
asked Oct 9 '17 at 11:45
yoyo_fun
322412
322412
1
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50
add a comment |Â
1
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50
1
1
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50
add a comment |Â
1 Answer
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System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
add a comment |Â
up vote
3
down vote
System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
add a comment |Â
up vote
3
down vote
up vote
3
down vote
System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
answered Oct 9 '17 at 11:49
Grzegorz Żur
1313
1313
add a comment |Â
add a comment |Â
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1
Most Linux system calls are available via glibc wrappers.
– sebasth
Oct 9 '17 at 11:50