gdb方式遍历EG(symbol_table) 哈希表的key(3)

  arKey = "d"}

有点乱，这里第一条就是现实了EG这个hash表里面有nNumOfElements =10个元素

这里的

(gdb) p *ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext

$10 = {h = 2090069483, nKeyLength = 4, pData = 0x837a3d8, pDataPtr = 0x8379ef8, pListNext = 0x837a3fc, pListLast = 0x8379e8c, pNext = 0x0, pLast = 0x0,

  arKey = "a"}

(gdb) p *ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext

$11 = {h = 2090180660, nKeyLength = 4, pData = 0x837a408, pDataPtr = 0x8379edc, pListNext = 0x0, pListLast = 0x837a3cc, pNext = 0x0, pLast = 0x0,

  arKey = "d"}

就是测试php代码里面的

$abc = 'string';

$def = 'string2';

这两个变量名称的具体hash的bucket了

(gdb) p *ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext

$10 = {h = 2090069483, nKeyLength = 4, pData = 0x837a3d8, pDataPtr = 0x8379ef8, pListNext = 0x837a3fc, pListLast = 0x8379e8c, pNext = 0x0, pLast = 0x0,

  arKey = "a"}

第一个字符arKey为a，有nKeyLength = 4四个字符长度

(gdb) p ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.arKey[0]

$10 = 97 'a'

(gdb) p ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.arKey[1]

$11 = 98 'b'

(gdb) p ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.arKey[2]

$12 = 99 'c'

(gdb) p ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.arKey[3]

$13 = 0 '\000'

如何在gdb方式下拿到指针了，看到对应的执行的zval的内容呢？

已经知道了bucket结构体中的pData就执行了内容

(gdb) p ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pData

$19 = (void *) 0x837a3d8

但是返回的这个，还不知道如何获得，请高手帮助

搞明白了

(gdb) p *ht.pListHead.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext.pListNext

$29 = {h = 2090069483, nKeyLength = 4, pData = 0x839fe28, pDataPtr = 0x839f948, pListNext = 0x839fe4c, pListLast = 0x839f8dc, pNext = 0x0, pLast = 0x0,

  arKey = "a"}

(gdb) p *(zval *)$29->pDataPtr

$30 = {value = {lval = 138024112, dval = 1.2800167717828578e-313, str = {val = 0x83a14b0 "string", len = 6}, ht = 0x83a14b0, obj = {handle = 138024112,

      handlers = 0x6}}, refcount__gc = 1, type = 6 '\006', is_ref__gc = 0 '\000'}