c – Valgrind不显示行号

概述我试图找出使用Valgrind对一块内存进行无效写入的位置.它告诉我们存在这样一个问题,也就是说什么功能,但不是在哪一行.虽然功能非常小,但我想在Valgrind中显示行号.我在Valgrind的一些输出上看过这个,但目前它们没有显示,我想知道为什么. 输出如下： niklas@emerald:~/Arbeitsfläche/spyr/bin/Debug$valgrind --tool=memch 我试图找出使用Valgrind对一块内存进行无效写入的位置.它告诉我们存在这样一个问题,也就是说什么功能,但不是在哪一行.虽然功能非常小,但我想在Valgrind中显示行号.我在Valgrind的一些输出上看过这个,但目前它们没有显示,我想知道为什么.

输出如下：

niklas@emerald:~/Arbeitsfläche/spyr/bin/DeBUG$valgrind --tool=memcheck --leak-check=full --show-reachable=yes ./spyr[...]==4404== InvalID write of size 4==4404==    at 0x8048849: sp_ParticleBuffer_init (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048BFC: sp_ParticleSystem_createParticle (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048691: main (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==  Address 0x422a0a0 is 4 bytes after a block of size 4 alloc'd==4404==    at 0x402BE68: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)==4404==    by 0x8048BC1: sp_ParticleSystem_createParticle (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048691: main (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404== ==4404== InvalID write of size 4==4404==    at 0x8048865: sp_ParticleBuffer_init (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048BFC: sp_ParticleSystem_createParticle (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048691: main (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==  Address 0x422a09c is 0 bytes after a block of size 4 alloc'd==4404==    at 0x402BE68: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)==4404==    by 0x8048BC1: sp_ParticleSystem_createParticle (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)==4404==    by 0x8048691: main (in /home/niklas/Arbeitsfläche/spyr/bin/DeBUG/spyr)[...]

我看到了输出,其中行号在文件名后面的双冒号后显示.即/ home / niklas /Arbeitsfläche/ spyr / bin / DeBUG / spyr：23或类似.

我怎样才能启用它？

仅供参考,这是sp_ParticleBuffer_init函数.

int sp_ParticleBuffer_init(sp_ParticleBuffer* buffer,sp_Uint32 buffer_size,int init_zero) {    size_t size   = sizeof(sp_Particle) * buffer_size;    buffer->next  = null;    buffer->array = (sp_Particle*) malloc(size);    buffer->alive_count = 0;    if (!buffer->array) return SPYR_ALLOCFailed;    if (init_zero) memset((voID*) buffer->array,size);    return SPYR_NOERR;}

解决方法 您需要在二进制文件中包含调试信息.如果您正在使用gcc,请传递-g标志. 总结

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