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[*] Initial strace run with jchroot on the command ./usr/bin/stm32flash to identify missing areas

[*] Emulating binary name: stm32flash in strace mode to identify missing areas (with jchroot)
[*] Emulator used: qemu-arm-static
[*] Chroot environment used: jchroot
[*] Using root directory: /logs/s115_usermode_emulator/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-80367616.squashfs_v4_le_extract (1/2)
[*] Using CPU config: 

1 brk(NULL) = 0x400091d0
1 access("/etc/ld.so.preload",R_OK) = -1 errno=2 (No such file or directory)
1 openat(AT_FDCWD,"/etc/ld.so.cache",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 errno=2 (No such file or directory)
1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libgcc_s.so.1",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
1 read(3,0x3ff1d138,512) = 512
1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce50) = 0
1 mmap2(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) = 0x3f7dd000
1 mmap2(NULL,102460,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f7c3000
1 mmap2(0x3f7db000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x18) = 0x3f7db000
1 close(3) = 0
1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libc.so.6",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
1 read(3,0x3ff1d128,512) = 512
1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce40) = 0
1 mmap2(NULL,1108064,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f6b4000
1 mmap2(0x3f7b6000,16384,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x101) = 0x3f7b6000
1 mmap2(0x3f7ba000,34912,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED,-1,0) = 0x3f7ba000
1 close(3) = 0
1 set_tid_address(0x3f7ddca8) = 1
1 set_robust_list(0x3f7ddcac,12) = -1 errno=38 (Function not implemented)
1 Unknown syscall 398
1 mprotect(0x3f7b6000,8192,PROT_READ) = 0
1 mprotect(0x3f7db000,4096,PROT_READ) = 0
1 mprotect(0x40008000,4096,PROT_READ) = 0
1 mprotect(0x3f7fd000,4096,PROT_READ) = 0
1 ugetrlimit(3,1072814520,1065101214,1065076484,1,1065057888) = 0
1 write(2,0x40006adc,28)ERROR: Device not specified
 = 28
1 write(2,0x3ff1b978,2617)Usage: ./usr/bin/stm32flash [-bvngfhc] [-[rw] filename] [tty_device | i2c_device]
	-a bus_address	Bus address (e.g. for I2C port)
	-b rate		Baud rate (default 57600)
	-m mode		Serial port mode (default 8e1)
	-r filename	Read flash to file (or - stdout)
	-w filename	Write flash from file (or - stdout)
	-C		Compute CRC of flash content
	-u		Disable the flash write-protection
	-j		Enable the flash read-protection
	-k		Disable the flash read-protection
	-o		Erase only
	-e n[:m]	Only erase n pages before writing the flash, optionally
			max m pages per erase
	-v		Verify writes
	-n count	Retry failed writes up to count times (default 10)
	-g address	Start execution at specified address (0 = flash start)
	-S address[:length]	Specify start address and optionally length for
	                   	read/write/erase operations
	-F RX_length[:TX_length]  Specify the max length of RX and TX frame
	-s start_page	Flash at specified page (0 = flash start)
	-f		Force binary parser
	-h		Show this help
	-c		Resume the connection (don't send initial INIT)
			*Baud rate must be kept the same as the first init*
			This is useful if the reset fails
	-R		Reset device at exit.
	-i GPIO_string	GPIO sequence to enter/exit bootloader mode
			GPIO_string=[entry_seq][:[exit_seq]]
			sequence=[[-]signal]&|,[sequence]

GPIO sequence:
	The following signals can appear in a sequence:
	  Integer number representing GPIO pin
	  Named gpio with the name enclosed within square brackets
	  'dtr', 'rts' or 'brk' representing serial port signal
	The sequence can use the following delimiters:
	  ',' adds 100 ms delay between signals
	  '&' adds no delay between signals
	The following modifiers can be prepended to a signal:
	  '-' reset signal instead of setting it

Examples:
	Get device information:
		./usr/bin/stm32flash /dev/ttyS0
	  or:
		./usr/bin/stm32flash /dev/i2c-0

	Write with verify and then start execution:
		./usr/bin/stm32flash -w filename -v -g 0x0 /dev/ttyS0

	Read flash to file:
		./usr/bin/stm32flash -r filename /dev/ttyS0

	Read 100 bytes of flash from 0x1000 to stdout:
		./usr/bin/stm32flash -r - -S 0x1000:100 /dev/ttyS0

	Start execution:
		./usr/bin/stm32flash -g 0x0 /dev/ttyS0

	GPIO sequence:
	- entry sequence: GPIO_3=reset, GPIO_2=reset, 100ms delay, GPIO_2=set
	- exit sequence: GPIO_3=set, GPIO_2=reset, 300ms delay, GPIO_2=set
		./usr/bin/stm32flash -i '-3&-2,2:3&-2,,,2' /dev/ttyS0
	GPIO sequence adding delay after port opening:
	- entry sequence: delay 500ms
	- exit sequence: rts=high, dtr=low, 300ms delay, reset gpio=high
		./usr/bin/stm32flash -R -i ',,,,,:rts&-dtr,,,[reset]' /dev/ttyS0
 = 2617
1 statx(1,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1d7d8) = 0
1 brk(NULL) = 0x400091d0
1 brk(0x4002b1d0) = 0x4002b1d0
1 brk(0x4002c000) = 0x4002c000
1 write(1,0x400091d8,1)
 = 1
1 exit_group(1)

[*] Identification of missing filesytem areas.
[*] Found missing area: /etc/ld.so.cache
[*] Trying to identify this missing file: ld.so.cache
[*] Missing file /logs/s115_usermode_emulator/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-80367616.squashfs_v4_le_extract/etc/ld.so.cache

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