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Linux
(@vicowara)
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n
oa.k.a. vicowara
nHP: http://vicowara.github.io/
n: http://sugawarayusuke.hatenablog.com/
nSNS
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n06'32#"
o06+* ≒ 06'32
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n,#(%/6&30
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$ ./a.out
Hello, world!
5
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&)#"
bash
%(
$!'"
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n3DA
o1D3DA%)
2D:A,
API* &+( ()
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!execve
n Linux 0'(7 ()ELF
n ELF2.-18*632.-
,)+592.-3#$
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.interp,)+59
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ELF
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n "(2I7BIJ4CL=<
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vicco@localhost ~/Scripts/hello $ ldd hello
linux-vdso.so.1 (0x00007ffdea521000)
libc.so.6 => /lib64/libc.so.6 (0x00007f8fd35df000)
/lib64/ld-linux-x86-64.so.2 (0x00007f8fd398e000)
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.dynamic.dynstr=9;HM
1
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n$* ('
nELF%"!e_entry
n_start
+#),&+#
o/usr/lib64/crt1.o ()+)
o_start() → __libc_start_main() →
main()
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vicco@localhost ~/Scripts/hello $ readelf -h hello|grep Entry
Entry point address: 0x4003e0
vicco@localhost ~/Scripts/hello $ objdump -d hello|grep 4003e0
00000000004003e0 <_start>:
4003e0: 31 ed xor %ebp,%ebp
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'1 12
0 ('1 ) 13! '1.* Linux 3%0
execve
+,/
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.&./
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n 0xAX: How the Linux kernel runs a program · Linux Inside, available
from (accessed 2018-03-03)
n M. Jones: Linux E4BEFK/$, available from
(accessed 2018-03-03)
n Yabusame: >E4@K,/ !%# CH98/8:<7,
available from
(accessed 2018-03-03)
n *)
o JohnR. L.: Linkers & Loaders, Morgan Kaufmann (1999).
("): Linker L Loaders, 5KD (2001)
o
:FI6JHK;&'=7?<7―
A34G2+1-0.(/ , CQ (2010)
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