# Static Call Graph for image C:\Users\Praful\Desktop\ARM7 STICK\collegeARM\PROGRAMS\BUZZER\buzzer.axf

#<CALLGRAPH># ARM Linker, RVCT4.0 [Build 524]: Last Updated: Fri Sep 23 12:15:30 2022

### Maximum Stack Usage = 8 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)

### Call chain for Maximum Stack Depth:

__rt_entry_sh ⇒ __user_setup_stackheap

### Functions with no stack information

- Reset_Handler
- __user_initial_stackheap
- Undef_Handler
- SWI_Handler
- PAbt_Handler
- DAbt_Handler
- IRQ_Handler
- FIQ_Handler

### Mutually Recursive functions

- Undef_Handler ⇒ Undef_Handler
- SWI_Handler ⇒ SWI_Handler
- PAbt_Handler ⇒ PAbt_Handler
- DAbt_Handler ⇒ DAbt_Handler
- IRQ_Handler ⇒ IRQ_Handler
- FIQ_Handler ⇒ FIQ_Handler

  ### Function Pointers

  - Reset_Handler
  - Undef_Handler
  - SWI_Handler
  - PAbt_Handler
  - DAbt_Handler
  - IRQ_Handler
  - FIQ_Handler
  - __main
  - main
  - __I$use$semihosting

  ### Global Symbols

  Reset_Handler (ARM, 0 bytes, Stack size unknown bytes, startup.o(RESET))
  [Address Reference Count : 1]

  - startup.o(RESET)

  __main (ARM, 8 bytes, Stack size 0 bytes, __main.o(!!!main))
  [Calls]

  - >> __scatterload
  - >> __rt_entry

  __scatterload (ARM, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter))
  [Called By]

  - >> __main

  __scatterload_rt2 (ARM, 52 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
  [Calls]

  - >> __rt_entry

  __scatterload_null (ARM, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

  __scatterload_zeroinit (ARM, 44 bytes, Stack size unknown bytes, __scatter_zi.o(!!handler_zi), UNUSED)

  __rt_lib_init (Thumb, 0 bytes, Stack size unknown bytes, libinit.o(.ARM.Collect$$libinit$$00000000))
  [Calls]

  - >> _fp_init (via Veneer)
  [Called By]
  - >> __rt_entry_li (via Veneer)

  __rt_lib_init_alloca_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002A))

  __rt_lib_init_argv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000028))

  __rt_lib_init_atexit_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000017))

  __rt_lib_init_clock_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001D))

  __rt_lib_init_cpp_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002E))

  __rt_lib_init_exceptions_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002C))

  __rt_lib_init_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001B))

  __rt_lib_init_getenv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001F))

  __rt_lib_init_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000006))

  __rt_lib_init_lc_collate_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000D))

  __rt_lib_init_lc_ctype_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000F))

  __rt_lib_init_lc_monetary_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000011))

  __rt_lib_init_lc_numeric_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000013))

  __rt_lib_init_lc_time_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000015))

  __rt_lib_init_rand_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000A))

  __rt_lib_init_return (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002F))

  __rt_lib_init_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000019))

  __rt_lib_init_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000021))

  __rt_lib_init_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000008))

  __rt_lib_shutdown (Thumb, 0 bytes, Stack size unknown bytes, libshutdown.o(.ARM.Collect$$libshutdown$$00000000))
  [Called By]

  - >> __rt_exit_ls (via Veneer)

  __rt_lib_shutdown_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000006))

  __rt_lib_shutdown_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000E))

  __rt_lib_shutdown_return (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000F))

  __rt_lib_shutdown_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000009))

  __rt_lib_shutdown_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000003))

  __rt_lib_shutdown_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000B))

  __rt_entry (ARM, 0 bytes, Stack size unknown bytes, rtentry.o(.ARM.Collect$$rtentry$$00000000))
  [Called By]

  - >> __scatterload_rt2
  - >> __main

  __rt_entry_presh_1 (ARM, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$00000002))

  __rt_entry_sh (ARM, 0 bytes, Stack size unknown bytes, rtentry4.o(.ARM.Collect$$rtentry$$00000004))
  [Stack]

  - Max Depth = 8 + Unknown Stack Size
  - Call Chain = __rt_entry_sh ⇒ __user_setup_stackheap
  [Calls]
  - >> __user_setup_stackheap

  __rt_entry_li (ARM, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000A))
  [Calls]

  - >> __rt_lib_init (via Veneer)

  __rt_entry_postsh_1 (ARM, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$00000009))

  __rt_entry_main (ARM, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000D))
  [Calls]

  - >> exit (via BX)

  __rt_entry_postli_1 (ARM, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000C))

  __rt_exit (ARM, 0 bytes, Stack size unknown bytes, rtexit.o(.ARM.Collect$$rtexit$$00000000))
  [Called By]

  - >> exit (via Veneer)

  __rt_exit_ls (ARM, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000003))
  [Calls]

  - >> __rt_lib_shutdown (via Veneer)

  __rt_exit_prels_1 (ARM, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000002))

  __rt_exit_exit (ARM, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000004))
  [Calls]

  - >> _sys_exit

  __user_initial_stackheap (ARM, 0 bytes, Stack size unknown bytes, startup.o(.text))
  [Called By]

  - >> __user_setup_stackheap

  Delay (ARM, 44 bytes, Stack size 0 bytes, buz.o(.text))
  [Called By]

  - >> main

  main (ARM, 68 bytes, Stack size 4 bytes, buz.o(.text))
  [Stack]

  - Max Depth = 4
  - Call Chain = main
  [Calls]
  - >> Delay
  [Address Reference Count : 1]
  - rtentry2.o(.ARM.Collect$$rtentry$$0000000D)

  __use_two_region_memory (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  __rt_heap_escrow$2region (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  __rt_heap_expand$2region (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  __user_setup_stackheap (ARM, 96 bytes, Stack size 8 bytes, sys_stackheap_outer.o(.text))
  [Stack]

  - Max Depth = 8 + Unknown Stack Size
  - Call Chain = __user_setup_stackheap
  [Calls]
  - >> __user_perproc_libspace
  - >> __user_initial_stackheap
  [Called By]
  - >> __rt_entry_sh

  exit (Thumb, 12 bytes, Stack size 0 bytes, exit.o(.text))
  [Calls]

  - >> __rt_exit (via Veneer)
  - >> _call_atexit_fns (Weak Reference)
  [Called By]
  - >> __rt_entry_main

  __user_libspace (ARM, 12 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

  __user_perproc_libspace (ARM, 0 bytes, Stack size 0 bytes, libspace.o(.text))
  [Called By]

  - >> __user_setup_stackheap

  __user_perthread_libspace (ARM, 0 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

  _sys_exit (ARM, 20 bytes, Stack size 0 bytes, sys_exit.o(.text))
  [Called By]

  - >> __rt_exit_exit

  __I$use$semihosting (ARM, 0 bytes, Stack size 0 bytes, use_no_semi.o(.text))
  [Address Reference Count : 1]

  - sys_exit.o(.text)

  __use_no_semihosting_swi (ARM, 4 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)

  __fplib_config_pureend_doubles (ARM, 0 bytes, Stack size 0 bytes, fpinit.o(x$fpl$fpinit), UNUSED)

  _fp_init (ARM, 4 bytes, Stack size 0 bytes, fpinit.o(x$fpl$fpinit))
  [Called By]

  - >> __rt_lib_init (via Veneer)

  ### Local Symbols

  Undef_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> Undef_Handler
  [Called By]
  - >> Undef_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  SWI_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> SWI_Handler
  [Called By]
  - >> SWI_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  PAbt_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> PAbt_Handler
  [Called By]
  - >> PAbt_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  DAbt_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> DAbt_Handler
  [Called By]
  - >> DAbt_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  IRQ_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> IRQ_Handler
  [Called By]
  - >> IRQ_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  FIQ_Handler (ARM, 4 bytes, Stack size unknown bytes, startup.o(RESET))
  [Calls]

  - >> FIQ_Handler
  [Called By]
  - >> FIQ_Handler
  [Address Reference Count : 1]
  - startup.o(RESET)

  ### Undefined Global Symbols

  _call_atexit_fns (ARM, 0 bytes, Stack size 0 bytes, UNDEFINED)
  [Called By]

  - >> exit