请教：DM8127 link.cmd编译修改问题

wei zhou7

Prodigy 222 points

Other Parts Discussed in Thread: SYSBIOS

各位技术专家，大家好！

我在做DM8127项目，想要修改linker.cmd的内存分配，想将堆(heap)的大小设为4MB，但是每次重新编译mcfw后，heap的大小都改为0，还请各位技术大神告知一下如何修改，我不胜感谢！

想将"-heap"改大一些，但编译后又变为0，还请各位大神告知一下如何修改，谢谢！

-heap 0x0

-stack 0x40000

MEMORY
{
LINUX_MEM : org = 0x80000000, len = 0x4000000
SR1 : org = 0x88000000, len = 0x3c00000
VIDEO_M3_CODE_MEM : org = 0x8bc00000, len = 0x300000
VIDEO_M3_DATA_MEM : org = 0x8bf00000, len = 0xe00000
DSS_M3_CODE_MEM : org = 0x8cd00000, len = 0x200000
DSS_M3_DATA_MEM : org = 0x8cf00000, len = 0x1600000
DSP_CODE_MEM : org = 0x8e500000, len = 0x700000
DDR3_DSP : org = 0x8ec00000, len = 0x1400000
TILER_MEM : org = 0xb0000000, len = 0x8000000
SR2_FRAME_BUFFER_MEM : org = 0xb8000000, len = 0x6900000
SR0 : org = 0xbe900000, len = 0x1000000
HDVPSS_DESC_MEM : org = 0xbf900000, len = 0x200000
HDVPSS_SHARED_MEM : org = 0xbfb00000, len = 0x200000
HOST_VPSS_NOTIFYMEM : org = 0xbfd00000, len = 0x200000
REMOTE_DEBUG_MEM : org = 0xbff00000, len = 0x100000
OCMC0_RAM : org = 0x40300000, len = 0x40000
OCMC1_RAM : org = 0x40400000, len = 0x40000
DSP_L2_RAM : org = 0x10800000, len = 0x20000
}

8 年多前

0 wei zhou7 8 年多前

Prodigy 222 points

修改BIOS.heapSize的大小可以修改这里的"-heap"大小，修改该大小可以在DSP中申请内存空间。

在文件ti_tools/bios_6_33_05_46/packages/ti/sysbios/BIOS.xs中查找"BIOS.heapSize"，可以查到如下代码

else if (Program.$written("heap")) {
/* app .cfg only set Program.heap, so we use that. */
BIOS.heapSize = Program.heap;
}

........

if (xdc.module("xdc.runtime.HeapStd").$used == false) {
// Program.heap = 0;
Program.heap = 0x400000;
}

将这里的Program.heap = 0，修改为Program.heap=0x400000(4MB);\

编译的是时候ipnc_rdk/ipnc_mcfw/build/ipnc_rdk/obj/ti814x-evm/c6xdsp/debug/ipnc_rdk_configuro/linker.cmd中的-heap改为0x400000

处理器

处理器论坛

请教：DM8127 link.cmd编译修改问题