2025-06-28 00:58:29 +02:00
|
|
|
|
ARM GAS /tmp/ccRdhNuV.s page 1
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 .cpu cortex-m4
|
|
|
|
|
|
2 .arch armv7e-m
|
|
|
|
|
|
3 .fpu fpv4-sp-d16
|
|
|
|
|
|
4 .eabi_attribute 27, 1
|
|
|
|
|
|
5 .eabi_attribute 28, 1
|
|
|
|
|
|
6 .eabi_attribute 20, 1
|
|
|
|
|
|
7 .eabi_attribute 21, 1
|
|
|
|
|
|
8 .eabi_attribute 23, 3
|
|
|
|
|
|
9 .eabi_attribute 24, 1
|
|
|
|
|
|
10 .eabi_attribute 25, 1
|
|
|
|
|
|
11 .eabi_attribute 26, 1
|
|
|
|
|
|
12 .eabi_attribute 30, 1
|
|
|
|
|
|
13 .eabi_attribute 34, 1
|
|
|
|
|
|
14 .eabi_attribute 18, 4
|
|
|
|
|
|
15 .file "sysmem.c"
|
|
|
|
|
|
16 .text
|
|
|
|
|
|
17 .Ltext0:
|
|
|
|
|
|
18 .cfi_sections .debug_frame
|
|
|
|
|
|
19 .file 1 "Src/sysmem.c"
|
|
|
|
|
|
20 .section .text._sbrk,"ax",%progbits
|
|
|
|
|
|
21 .align 1
|
|
|
|
|
|
22 .global _sbrk
|
|
|
|
|
|
23 .syntax unified
|
|
|
|
|
|
24 .thumb
|
|
|
|
|
|
25 .thumb_func
|
|
|
|
|
|
27 _sbrk:
|
|
|
|
|
|
28 .LVL0:
|
|
|
|
|
|
29 .LFB0:
|
|
|
|
|
|
1:Src/sysmem.c **** /**
|
|
|
|
|
|
2:Src/sysmem.c **** ******************************************************************************
|
|
|
|
|
|
3:Src/sysmem.c **** * @file sysmem.c
|
|
|
|
|
|
4:Src/sysmem.c **** * @author Generated by STM32CubeMX
|
|
|
|
|
|
5:Src/sysmem.c **** * @brief System Memory calls file
|
|
|
|
|
|
6:Src/sysmem.c **** *
|
|
|
|
|
|
7:Src/sysmem.c **** * For more information about which C functions
|
|
|
|
|
|
8:Src/sysmem.c **** * need which of these lowlevel functions
|
|
|
|
|
|
9:Src/sysmem.c **** * please consult the newlib libc manual
|
|
|
|
|
|
10:Src/sysmem.c **** ******************************************************************************
|
|
|
|
|
|
11:Src/sysmem.c **** * @attention
|
|
|
|
|
|
12:Src/sysmem.c **** *
|
|
|
|
|
|
13:Src/sysmem.c **** * Copyright (c) 2024 STMicroelectronics.
|
|
|
|
|
|
14:Src/sysmem.c **** * All rights reserved.
|
|
|
|
|
|
15:Src/sysmem.c **** *
|
|
|
|
|
|
16:Src/sysmem.c **** * This software is licensed under terms that can be found in the LICENSE file
|
|
|
|
|
|
17:Src/sysmem.c **** * in the root directory of this software component.
|
|
|
|
|
|
18:Src/sysmem.c **** * If no LICENSE file comes with this software, it is provided AS-IS.
|
|
|
|
|
|
19:Src/sysmem.c **** *
|
|
|
|
|
|
20:Src/sysmem.c **** ******************************************************************************
|
|
|
|
|
|
21:Src/sysmem.c **** */
|
|
|
|
|
|
22:Src/sysmem.c ****
|
|
|
|
|
|
23:Src/sysmem.c **** /* Includes */
|
|
|
|
|
|
24:Src/sysmem.c **** #include <errno.h>
|
|
|
|
|
|
25:Src/sysmem.c **** #include <stdint.h>
|
|
|
|
|
|
26:Src/sysmem.c ****
|
|
|
|
|
|
27:Src/sysmem.c **** /**
|
|
|
|
|
|
28:Src/sysmem.c **** * Pointer to the current high watermark of the heap usage
|
|
|
|
|
|
29:Src/sysmem.c **** */
|
2025-06-28 00:58:29 +02:00
|
|
|
|
ARM GAS /tmp/ccRdhNuV.s page 2
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30:Src/sysmem.c **** static uint8_t *__sbrk_heap_end = NULL;
|
|
|
|
|
|
31:Src/sysmem.c ****
|
|
|
|
|
|
32:Src/sysmem.c **** /**
|
|
|
|
|
|
33:Src/sysmem.c **** * @brief _sbrk() allocates memory to the newlib heap and is used by malloc
|
|
|
|
|
|
34:Src/sysmem.c **** * and others from the C library
|
|
|
|
|
|
35:Src/sysmem.c **** *
|
|
|
|
|
|
36:Src/sysmem.c **** * @verbatim
|
|
|
|
|
|
37:Src/sysmem.c **** * ############################################################################
|
|
|
|
|
|
38:Src/sysmem.c **** * # .data # .bss # newlib heap # MSP stack #
|
|
|
|
|
|
39:Src/sysmem.c **** * # # # # Reserved by _Min_Stack_Size #
|
|
|
|
|
|
40:Src/sysmem.c **** * ############################################################################
|
|
|
|
|
|
41:Src/sysmem.c **** * ^-- RAM start ^-- _end _estack, RAM end --^
|
|
|
|
|
|
42:Src/sysmem.c **** * @endverbatim
|
|
|
|
|
|
43:Src/sysmem.c **** *
|
|
|
|
|
|
44:Src/sysmem.c **** * This implementation starts allocating at the '_end' linker symbol
|
|
|
|
|
|
45:Src/sysmem.c **** * The '_Min_Stack_Size' linker symbol reserves a memory for the MSP stack
|
|
|
|
|
|
46:Src/sysmem.c **** * The implementation considers '_estack' linker symbol to be RAM end
|
|
|
|
|
|
47:Src/sysmem.c **** * NOTE: If the MSP stack, at any point during execution, grows larger than the
|
|
|
|
|
|
48:Src/sysmem.c **** * reserved size, please increase the '_Min_Stack_Size'.
|
|
|
|
|
|
49:Src/sysmem.c **** *
|
|
|
|
|
|
50:Src/sysmem.c **** * @param incr Memory size
|
|
|
|
|
|
51:Src/sysmem.c **** * @return Pointer to allocated memory
|
|
|
|
|
|
52:Src/sysmem.c **** */
|
|
|
|
|
|
53:Src/sysmem.c **** void *_sbrk(ptrdiff_t incr)
|
|
|
|
|
|
54:Src/sysmem.c **** {
|
|
|
|
|
|
30 .loc 1 54 1 view -0
|
|
|
|
|
|
31 .cfi_startproc
|
|
|
|
|
|
32 @ args = 0, pretend = 0, frame = 0
|
|
|
|
|
|
33 @ frame_needed = 0, uses_anonymous_args = 0
|
|
|
|
|
|
34 .loc 1 54 1 is_stmt 0 view .LVU1
|
|
|
|
|
|
35 0000 10B5 push {r4, lr}
|
|
|
|
|
|
36 .LCFI0:
|
|
|
|
|
|
37 .cfi_def_cfa_offset 8
|
|
|
|
|
|
38 .cfi_offset 4, -8
|
|
|
|
|
|
39 .cfi_offset 14, -4
|
|
|
|
|
|
40 0002 0346 mov r3, r0
|
|
|
|
|
|
55:Src/sysmem.c **** extern uint8_t _end; /* Symbol defined in the linker script */
|
|
|
|
|
|
41 .loc 1 55 3 is_stmt 1 view .LVU2
|
|
|
|
|
|
56:Src/sysmem.c **** extern uint8_t _estack; /* Symbol defined in the linker script */
|
|
|
|
|
|
42 .loc 1 56 3 view .LVU3
|
|
|
|
|
|
57:Src/sysmem.c **** extern uint32_t _Min_Stack_Size; /* Symbol defined in the linker script */
|
|
|
|
|
|
43 .loc 1 57 3 view .LVU4
|
|
|
|
|
|
58:Src/sysmem.c **** const uint32_t stack_limit = (uint32_t)&_estack - (uint32_t)&_Min_Stack_Size;
|
|
|
|
|
|
44 .loc 1 58 3 view .LVU5
|
|
|
|
|
|
45 .LVL1:
|
|
|
|
|
|
59:Src/sysmem.c **** const uint8_t *max_heap = (uint8_t *)stack_limit;
|
|
|
|
|
|
46 .loc 1 59 3 view .LVU6
|
|
|
|
|
|
58:Src/sysmem.c **** const uint32_t stack_limit = (uint32_t)&_estack - (uint32_t)&_Min_Stack_Size;
|
|
|
|
|
|
47 .loc 1 58 51 is_stmt 0 view .LVU7
|
|
|
|
|
|
48 0004 0C4A ldr r2, .L8
|
|
|
|
|
|
49 0006 0D49 ldr r1, .L8+4
|
|
|
|
|
|
50 .LVL2:
|
|
|
|
|
|
60:Src/sysmem.c **** uint8_t *prev_heap_end;
|
|
|
|
|
|
51 .loc 1 60 3 is_stmt 1 view .LVU8
|
|
|
|
|
|
61:Src/sysmem.c ****
|
|
|
|
|
|
62:Src/sysmem.c **** /* Initialize heap end at first call */
|
|
|
|
|
|
63:Src/sysmem.c **** if (NULL == __sbrk_heap_end)
|
2025-06-28 00:58:29 +02:00
|
|
|
|
ARM GAS /tmp/ccRdhNuV.s page 3
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
52 .loc 1 63 3 view .LVU9
|
|
|
|
|
|
53 .loc 1 63 12 is_stmt 0 view .LVU10
|
|
|
|
|
|
54 0008 0D48 ldr r0, .L8+8
|
|
|
|
|
|
55 .LVL3:
|
|
|
|
|
|
56 .loc 1 63 12 view .LVU11
|
|
|
|
|
|
57 000a 0068 ldr r0, [r0]
|
|
|
|
|
|
58 .loc 1 63 6 view .LVU12
|
|
|
|
|
|
59 000c 40B1 cbz r0, .L6
|
|
|
|
|
|
60 .L2:
|
|
|
|
|
|
64:Src/sysmem.c **** {
|
|
|
|
|
|
65:Src/sysmem.c **** __sbrk_heap_end = &_end;
|
|
|
|
|
|
66:Src/sysmem.c **** }
|
|
|
|
|
|
67:Src/sysmem.c ****
|
|
|
|
|
|
68:Src/sysmem.c **** /* Protect heap from growing into the reserved MSP stack */
|
|
|
|
|
|
69:Src/sysmem.c **** if (__sbrk_heap_end + incr > max_heap)
|
|
|
|
|
|
61 .loc 1 69 3 is_stmt 1 view .LVU13
|
|
|
|
|
|
62 .loc 1 69 23 is_stmt 0 view .LVU14
|
|
|
|
|
|
63 000e 0C48 ldr r0, .L8+8
|
|
|
|
|
|
64 0010 0068 ldr r0, [r0]
|
|
|
|
|
|
65 0012 0344 add r3, r3, r0
|
|
|
|
|
|
66 .LVL4:
|
|
|
|
|
|
67 .loc 1 69 6 view .LVU15
|
|
|
|
|
|
68 0014 521A subs r2, r2, r1
|
|
|
|
|
|
69 0016 9342 cmp r3, r2
|
|
|
|
|
|
70 0018 06D8 bhi .L7
|
|
|
|
|
|
70:Src/sysmem.c **** {
|
|
|
|
|
|
71:Src/sysmem.c **** errno = ENOMEM;
|
|
|
|
|
|
72:Src/sysmem.c **** return (void *)-1;
|
|
|
|
|
|
73:Src/sysmem.c **** }
|
|
|
|
|
|
74:Src/sysmem.c ****
|
|
|
|
|
|
75:Src/sysmem.c **** prev_heap_end = __sbrk_heap_end;
|
|
|
|
|
|
71 .loc 1 75 3 is_stmt 1 view .LVU16
|
|
|
|
|
|
72 .LVL5:
|
|
|
|
|
|
76:Src/sysmem.c **** __sbrk_heap_end += incr;
|
|
|
|
|
|
73 .loc 1 76 3 view .LVU17
|
|
|
|
|
|
74 .loc 1 76 19 is_stmt 0 view .LVU18
|
|
|
|
|
|
75 001a 094A ldr r2, .L8+8
|
|
|
|
|
|
76 001c 1360 str r3, [r2]
|
|
|
|
|
|
77:Src/sysmem.c ****
|
|
|
|
|
|
78:Src/sysmem.c **** return (void *)prev_heap_end;
|
|
|
|
|
|
77 .loc 1 78 3 is_stmt 1 view .LVU19
|
|
|
|
|
|
78 .LVL6:
|
|
|
|
|
|
79 .L1:
|
|
|
|
|
|
79:Src/sysmem.c **** }
|
|
|
|
|
|
80 .loc 1 79 1 is_stmt 0 view .LVU20
|
|
|
|
|
|
81 001e 10BD pop {r4, pc}
|
|
|
|
|
|
82 .LVL7:
|
|
|
|
|
|
83 .L6:
|
|
|
|
|
|
65:Src/sysmem.c **** }
|
|
|
|
|
|
84 .loc 1 65 5 is_stmt 1 view .LVU21
|
|
|
|
|
|
65:Src/sysmem.c **** }
|
|
|
|
|
|
85 .loc 1 65 21 is_stmt 0 view .LVU22
|
|
|
|
|
|
86 0020 0748 ldr r0, .L8+8
|
|
|
|
|
|
87 0022 084C ldr r4, .L8+12
|
|
|
|
|
|
88 0024 0460 str r4, [r0]
|
|
|
|
|
|
89 0026 F2E7 b .L2
|
|
|
|
|
|
90 .LVL8:
|
2025-06-28 00:58:29 +02:00
|
|
|
|
ARM GAS /tmp/ccRdhNuV.s page 4
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
91 .L7:
|
|
|
|
|
|
71:Src/sysmem.c **** return (void *)-1;
|
|
|
|
|
|
92 .loc 1 71 5 is_stmt 1 view .LVU23
|
|
|
|
|
|
93 0028 FFF7FEFF bl __errno
|
|
|
|
|
|
94 .LVL9:
|
|
|
|
|
|
71:Src/sysmem.c **** return (void *)-1;
|
|
|
|
|
|
95 .loc 1 71 11 is_stmt 0 discriminator 1 view .LVU24
|
|
|
|
|
|
96 002c 0C23 movs r3, #12
|
|
|
|
|
|
97 002e 0360 str r3, [r0]
|
|
|
|
|
|
72:Src/sysmem.c **** }
|
|
|
|
|
|
98 .loc 1 72 5 is_stmt 1 view .LVU25
|
|
|
|
|
|
72:Src/sysmem.c **** }
|
|
|
|
|
|
99 .loc 1 72 12 is_stmt 0 view .LVU26
|
|
|
|
|
|
100 0030 4FF0FF30 mov r0, #-1
|
|
|
|
|
|
101 0034 F3E7 b .L1
|
|
|
|
|
|
102 .L9:
|
|
|
|
|
|
103 0036 00BF .align 2
|
|
|
|
|
|
104 .L8:
|
|
|
|
|
|
105 0038 00000000 .word _estack
|
|
|
|
|
|
106 003c 00000000 .word _Min_Stack_Size
|
|
|
|
|
|
107 0040 00000000 .word __sbrk_heap_end
|
|
|
|
|
|
108 0044 00000000 .word _end
|
|
|
|
|
|
109 .cfi_endproc
|
|
|
|
|
|
110 .LFE0:
|
|
|
|
|
|
112 .section .bss.__sbrk_heap_end,"aw",%nobits
|
|
|
|
|
|
113 .align 2
|
|
|
|
|
|
116 __sbrk_heap_end:
|
|
|
|
|
|
117 0000 00000000 .space 4
|
|
|
|
|
|
118 .text
|
|
|
|
|
|
119 .Letext0:
|
2025-06-28 00:58:29 +02:00
|
|
|
|
120 .file 2 "/home/fra/bin/arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-eabi/lib/gcc/arm-none-eabi/14.2
|
|
|
|
|
|
121 .file 3 "/home/fra/bin/arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-eabi/arm-none-eabi/include/mach
|
|
|
|
|
|
122 .file 4 "/home/fra/bin/arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-eabi/arm-none-eabi/include/sys/
|
|
|
|
|
|
123 .file 5 "/home/fra/bin/arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-eabi/arm-none-eabi/include/sys/
|
|
|
|
|
|
ARM GAS /tmp/ccRdhNuV.s page 5
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DEFINED SYMBOLS
|
|
|
|
|
|
*ABS*:00000000 sysmem.c
|
2025-06-28 00:58:29 +02:00
|
|
|
|
/tmp/ccRdhNuV.s:21 .text._sbrk:00000000 $t
|
|
|
|
|
|
/tmp/ccRdhNuV.s:27 .text._sbrk:00000000 _sbrk
|
|
|
|
|
|
/tmp/ccRdhNuV.s:105 .text._sbrk:00000038 $d
|
|
|
|
|
|
/tmp/ccRdhNuV.s:116 .bss.__sbrk_heap_end:00000000 __sbrk_heap_end
|
|
|
|
|
|
/tmp/ccRdhNuV.s:113 .bss.__sbrk_heap_end:00000000 $d
|
2025-01-28 19:01:22 +01:00
|
|
|
|
|
|
|
|
|
|
UNDEFINED SYMBOLS
|
|
|
|
|
|
__errno
|
|
|
|
|
|
_estack
|
|
|
|
|
|
_Min_Stack_Size
|
|
|
|
|
|
_end
|
