1 .cpu cortex-m4 2 .eabi_attribute 20, 1 3 .eabi_attribute 21, 1 4 .eabi_attribute 23, 3 5 .eabi_attribute 24, 1 6 .eabi_attribute 25, 1 7 .eabi_attribute 26, 1 8 .eabi_attribute 30, 4 9 .eabi_attribute 34, 1 10 .eabi_attribute 18, 4 11 .file "stm32f3_sysmem.c" 12 .text 13 .Ltext0: 14 .cfi_sections .debug_frame 15 .section .text._sbrk,"ax",%progbits 16 .align 1 17 .global _sbrk 18 .arch armv7e-m 19 .syntax unified 20 .thumb 21 .thumb_func 22 .fpu softvfp 24 _sbrk: 25 .LVL0: 26 .LFB3: 27 .file 1 "deps//hal/stm32f3/stm32f3_sysmem.c" 1:deps//hal/stm32f3/stm32f3_sysmem.c **** /** 2:deps//hal/stm32f3/stm32f3_sysmem.c **** ***************************************************************************** 3:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 4:deps//hal/stm32f3/stm32f3_sysmem.c **** ** File : sysmem.c 5:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 6:deps//hal/stm32f3/stm32f3_sysmem.c **** ** Author : Ac6 7:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 8:deps//hal/stm32f3/stm32f3_sysmem.c **** ** Abstract : System Workbench Minimal System Memory calls file 9:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 10:deps//hal/stm32f3/stm32f3_sysmem.c **** ** For more information about which c-functions 11:deps//hal/stm32f3/stm32f3_sysmem.c **** ** need which of these lowlevel functions 12:deps//hal/stm32f3/stm32f3_sysmem.c **** ** please consult the Newlib libc-manual 13:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 14:deps//hal/stm32f3/stm32f3_sysmem.c **** ** Environment : System Workbench for MCU 15:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 16:deps//hal/stm32f3/stm32f3_sysmem.c **** ** Distribution: The file is distributed “as is,” without any warranty 17:deps//hal/stm32f3/stm32f3_sysmem.c **** ** of any kind. 18:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 19:deps//hal/stm32f3/stm32f3_sysmem.c **** ***************************************************************************** 20:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 21:deps//hal/stm32f3/stm32f3_sysmem.c **** **

© COPYRIGHT(c) 2014 Ac6

22:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 23:deps//hal/stm32f3/stm32f3_sysmem.c **** ** Redistribution and use in source and binary forms, with or without modification, 24:deps//hal/stm32f3/stm32f3_sysmem.c **** ** are permitted provided that the following conditions are met: 25:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 1. Redistributions of source code must retain the above copyright notice, 26:deps//hal/stm32f3/stm32f3_sysmem.c **** ** this list of conditions and the following disclaimer. 27:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 2. Redistributions in binary form must reproduce the above copyright notice, 28:deps//hal/stm32f3/stm32f3_sysmem.c **** ** this list of conditions and the following disclaimer in the documentation 29:deps//hal/stm32f3/stm32f3_sysmem.c **** ** and/or other materials provided with the distribution. 30:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 3. Neither the name of Ac6 nor the names of its contributors 31:deps//hal/stm32f3/stm32f3_sysmem.c **** ** may be used to endorse or promote products derived from this software 32:deps//hal/stm32f3/stm32f3_sysmem.c **** ** without specific prior written permission. 33:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 34:deps//hal/stm32f3/stm32f3_sysmem.c **** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 35:deps//hal/stm32f3/stm32f3_sysmem.c **** ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 36:deps//hal/stm32f3/stm32f3_sysmem.c **** ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 37:deps//hal/stm32f3/stm32f3_sysmem.c **** ** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 38:deps//hal/stm32f3/stm32f3_sysmem.c **** ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 39:deps//hal/stm32f3/stm32f3_sysmem.c **** ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 40:deps//hal/stm32f3/stm32f3_sysmem.c **** ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 41:deps//hal/stm32f3/stm32f3_sysmem.c **** ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 42:deps//hal/stm32f3/stm32f3_sysmem.c **** ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 43:deps//hal/stm32f3/stm32f3_sysmem.c **** ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 44:deps//hal/stm32f3/stm32f3_sysmem.c **** ** 45:deps//hal/stm32f3/stm32f3_sysmem.c **** ***************************************************************************** 46:deps//hal/stm32f3/stm32f3_sysmem.c **** */ 47:deps//hal/stm32f3/stm32f3_sysmem.c **** 48:deps//hal/stm32f3/stm32f3_sysmem.c **** /* Includes */ 49:deps//hal/stm32f3/stm32f3_sysmem.c **** #include 50:deps//hal/stm32f3/stm32f3_sysmem.c **** #include 51:deps//hal/stm32f3/stm32f3_sysmem.c **** 52:deps//hal/stm32f3/stm32f3_sysmem.c **** /* Variables */ 53:deps//hal/stm32f3/stm32f3_sysmem.c **** //Uncomment following if needed - commented out for now as not used and causes warning 54:deps//hal/stm32f3/stm32f3_sysmem.c **** //extern int errno; 55:deps//hal/stm32f3/stm32f3_sysmem.c **** register char * stack_ptr asm("sp"); 56:deps//hal/stm32f3/stm32f3_sysmem.c **** 57:deps//hal/stm32f3/stm32f3_sysmem.c **** /* Functions */ 58:deps//hal/stm32f3/stm32f3_sysmem.c **** 59:deps//hal/stm32f3/stm32f3_sysmem.c **** /** 60:deps//hal/stm32f3/stm32f3_sysmem.c **** _sbrk 61:deps//hal/stm32f3/stm32f3_sysmem.c **** Increase program data space. Malloc and related functions depend on this 62:deps//hal/stm32f3/stm32f3_sysmem.c **** **/ 63:deps//hal/stm32f3/stm32f3_sysmem.c **** caddr_t _sbrk(int incr) 64:deps//hal/stm32f3/stm32f3_sysmem.c **** { 28 .loc 1 64 1 view -0 29 .cfi_startproc 30 @ args = 0, pretend = 0, frame = 0 31 @ frame_needed = 0, uses_anonymous_args = 0 65:deps//hal/stm32f3/stm32f3_sysmem.c **** extern char end asm("end"); 32 .loc 1 65 2 view .LVU1 66:deps//hal/stm32f3/stm32f3_sysmem.c **** static char *heap_end; 33 .loc 1 66 2 view .LVU2 67:deps//hal/stm32f3/stm32f3_sysmem.c **** char *prev_heap_end; 34 .loc 1 67 2 view .LVU3 68:deps//hal/stm32f3/stm32f3_sysmem.c **** 69:deps//hal/stm32f3/stm32f3_sysmem.c **** if (heap_end == 0) 35 .loc 1 69 2 view .LVU4 36 .loc 1 69 15 is_stmt 0 view .LVU5 37 0000 0A4A ldr r2, .L5 38 .loc 1 69 5 view .LVU6 39 0002 1168 ldr r1, [r2] 64:deps//hal/stm32f3/stm32f3_sysmem.c **** extern char end asm("end"); 40 .loc 1 64 1 view .LVU7 41 0004 08B5 push {r3, lr} 42 .LCFI0: 43 .cfi_def_cfa_offset 8 44 .cfi_offset 3, -8 45 .cfi_offset 14, -4 64:deps//hal/stm32f3/stm32f3_sysmem.c **** extern char end asm("end"); 46 .loc 1 64 1 view .LVU8 47 0006 0346 mov r3, r0 48 .loc 1 69 5 view .LVU9 49 0008 09B9 cbnz r1, .L2 70:deps//hal/stm32f3/stm32f3_sysmem.c **** heap_end = &end; 50 .loc 1 70 3 is_stmt 1 view .LVU10 51 .loc 1 70 12 is_stmt 0 view .LVU11 52 000a 0949 ldr r1, .L5+4 53 000c 1160 str r1, [r2] 54 .L2: 71:deps//hal/stm32f3/stm32f3_sysmem.c **** 72:deps//hal/stm32f3/stm32f3_sysmem.c **** prev_heap_end = heap_end; 55 .loc 1 72 2 is_stmt 1 view .LVU12 56 .loc 1 72 16 is_stmt 0 view .LVU13 57 000e 1068 ldr r0, [r2] 58 .LVL1: 73:deps//hal/stm32f3/stm32f3_sysmem.c **** if (heap_end + incr > stack_ptr) 59 .loc 1 73 2 is_stmt 1 view .LVU14 60 .loc 1 73 5 is_stmt 0 view .LVU15 61 0010 6946 mov r1, sp 62 .loc 1 73 15 view .LVU16 63 0012 0344 add r3, r3, r0 64 .LVL2: 65 .loc 1 73 5 view .LVU17 66 0014 8B42 cmp r3, r1 67 0016 06D9 bls .L3 74:deps//hal/stm32f3/stm32f3_sysmem.c **** { 75:deps//hal/stm32f3/stm32f3_sysmem.c **** errno = ENOMEM; 68 .loc 1 75 3 is_stmt 1 view .LVU18 69 0018 FFF7FEFF bl __errno 70 .LVL3: 71 .loc 1 75 9 is_stmt 0 view .LVU19 72 001c 0C23 movs r3, #12 73 001e 0360 str r3, [r0] 76:deps//hal/stm32f3/stm32f3_sysmem.c **** return (caddr_t) -1; 74 .loc 1 76 3 is_stmt 1 view .LVU20 75 .loc 1 76 10 is_stmt 0 view .LVU21 76 0020 4FF0FF30 mov r0, #-1 77 .L1: 77:deps//hal/stm32f3/stm32f3_sysmem.c **** } 78:deps//hal/stm32f3/stm32f3_sysmem.c **** 79:deps//hal/stm32f3/stm32f3_sysmem.c **** heap_end += incr; 80:deps//hal/stm32f3/stm32f3_sysmem.c **** 81:deps//hal/stm32f3/stm32f3_sysmem.c **** return (caddr_t) prev_heap_end; 82:deps//hal/stm32f3/stm32f3_sysmem.c **** } 78 .loc 1 82 1 view .LVU22 79 0024 08BD pop {r3, pc} 80 .LVL4: 81 .L3: 79:deps//hal/stm32f3/stm32f3_sysmem.c **** 82 .loc 1 79 2 is_stmt 1 view .LVU23 79:deps//hal/stm32f3/stm32f3_sysmem.c **** 83 .loc 1 79 11 is_stmt 0 view .LVU24 84 0026 1360 str r3, [r2] 81:deps//hal/stm32f3/stm32f3_sysmem.c **** } 85 .loc 1 81 2 is_stmt 1 view .LVU25 81:deps//hal/stm32f3/stm32f3_sysmem.c **** } 86 .loc 1 81 9 is_stmt 0 view .LVU26 87 0028 FCE7 b .L1 88 .L6: 89 002a 00BF .align 2 90 .L5: 91 002c 00000000 .word .LANCHOR0 92 0030 00000000 .word end 93 .cfi_endproc 94 .LFE3: 96 .bss 97 .align 2 98 .set .LANCHOR0,. + 0 101 heap_end.0: 102 0000 00000000 .space 4 103 .text 104 .Letext0: 105 .file 2 "/usr/arm-none-eabi/include/sys/types.h" 106 .file 3 "/usr/arm-none-eabi/include/sys/errno.h" DEFINED SYMBOLS *ABS*:0000000000000000 stm32f3_sysmem.c /tmp/ccGKHttk.s:16 .text._sbrk:0000000000000000 $t /tmp/ccGKHttk.s:24 .text._sbrk:0000000000000000 _sbrk /tmp/ccGKHttk.s:91 .text._sbrk:000000000000002c $d /tmp/ccGKHttk.s:97 .bss:0000000000000000 $d /tmp/ccGKHttk.s:101 .bss:0000000000000000 heap_end.0 UNDEFINED SYMBOLS __errno end