Linux debug by using strace

We can use strace to find which libraries are used of the specified program.
Another point is that you can find which configure file was opened by the specified program. Does the specified program open the wrong configuration files not as you expected?

# strace ./myprog -l 1234 -d 4
execve("./tsa", ["./myprog", "-l", "1234", "-d", "4"], [/* 53 vars */]) = 0
brk(0) = 0x9adb000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=108397, ...}) = 0
mmap2(NULL, 108397, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f7e000
close(3) = 0
open("/lib/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \30l\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=131528, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f7d000
mmap2(0x6bd000, 98784, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x6bd000
mmap2(0x6d2000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0x6d2000
mmap2(0x6d4000, 4576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x6d4000
close(3) = 0
open("/lib/libm.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\20\344h\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=210324, ...}) = 0
mmap2(0x68b000, 163952, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x68b000
mmap2(0x6b2000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x26) = 0x6b2000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3

讓我們一起飛吧 張茂松 2008-06-08 賽40: 27~31

1. 因為沒有翅膀, 所以不能飛 (基督徒才有翅膀)
基督徒有
a. 禱告的翅膀
b. 信心的翅膀
c. 屬天的翅膀 (支取上帝的祝福)
d. 屬靈的翅膀
2. 跟雞在一起, 不知道可以飛
3. 因為從來沒用過翅膀, 所以不會飛
4. 因為害怕, 所以不敢飛
5. 因為沒願景, 就隨便飛
6. 沒熱情就懶的飛
7. 因為不在靈風中, 就靠自己飛

匈牙利命名法 (For reference)

匈牙利命名法
變數名稱 = 屬性+類型+描述
屬性
" g_ 全域變數
" c_ 常數
" m_ 成員變數
類型
" n/ui int/unsigned int
" l/ ul long/unsigned long
" sh/us short/unsigned short
" f float
" d double
" ld long double
" ch char
" b boolean
" p pointer
" h handle
" str String
" w/dw WORD/DWORD
" b byte/unsigned char
" bl BOOL
描述
" Custom 自訂
" Src 來源
" Dst 目的
" Tmp 暫時

Other Reference:

Prefix	Data Type	Prefix	Data Type
c	char, TCHAR	bt	TBYTE, BYTE,
uc	UCHAR
s	short	us	USHORT
w	WORD	n	int, INT
u	UINT	l	LONG, long
dw	DWORD	ul	ULONG
fl	float	db	double
b	BOOL	f	bitwise flag fields
sz	ANSI string, terminated with a \0 character.	psz	PSTR
h	HANDLE	hmem	HGLOBAL, HLOCAL
hwnd	HWND	hfile	HFILE
hdc	HDC	hpen	HPEN
hfont	HFONT	hbmp	HBITMAP
hpal	HPALETTE	hmenu	HMENU
hicon	HICON	hinst	HINSTANCE
hcur	HCURSOR	hbr	HBRUSH
pt	POINT	rc	RECT
tm	TEXTMETRIC	lf	LOGFONT
bmp	BITMAPINFO	pal	PALETTEENTRY
cls	WNDCLASS	msg	MSG
rgb	RGBQUAD	clr	COLORREF
of	OFSTRUCT	ps	PAINTSTRUCT
cb	count of bytes	cx, cy	length in pixels
p	added for pointer to any type, e.g., ps, pdw, phicon, pof, ..., etc.	a	added for array of any type, e.g., as, adw, auc, ...
C	a big C in front of all C++ class names, the rest of the class name is a mix of big and small letters	m_	added in front of all C++ class member variables.
str	string
st	structure

張茂松牧師 - 打造一個精品、塑造一個達人

新店行道會張茂松牧師 - 打造一個精品、塑造一個達人
1. 熟記
2. 思想
3. 禱告
4. 遵行

讀聖經時, 常常問為什麼?

如何預備被祝福?(汝矣島純福音教會主任牧師趙鏞基妻子 金聖惠總長)
1. 正向思考
2. 有異象, 異夢
3. 盡力去做
4. 倚靠聖靈