{"id":1100,"date":"2021-05-15T14:00:55","date_gmt":"2021-05-15T06:00:55","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=1100"},"modified":"2021-05-15T22:41:17","modified_gmt":"2021-05-15T14:41:17","slug":"arm64%e6%b1%87%e7%bc%96%e3%80%81%e5%a0%86%e6%a0%88%e5%9b%9e%e6%ba%af%e3%80%81panic%e6%97%b6%e5%9b%9e%e6%ba%af%e5%87%bd%e6%95%b0%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=1100","title":{"rendered":"ARM64\u6c47\u7f16\u3001\u5806\u6808\u56de\u6eaf\u3001panic\u65f6\u56de\u6eaf\u51fd\u6570\u8c03\u7528"},"content":{"rendered":"
\u770b\u4e00\u4e2a\u5b9e\u4f8b\u4ee3\u7801\u7a0b\u5e8f\uff1a<\/strong><\/div>\n
#include <stdio.h><\/div>\n
int callee_func2(int a)<\/div>\n
{<\/div>\n
\u00a0\u00a0\u00a0\u00a0int b = 2;<\/div>\n
\u00a0\u00a0\u00a0\u00a0return a + b;<\/div>\n
}<\/div>\n
int callee_func1(int a)<\/div>\n
{<\/div>\n
\u00a0\u00a0\u00a0\u00a0int b = 1, c;<\/div>\n
\u00a0\u00a0\u00a0\u00a0c = callee_func2(a);<\/div>\n
\u00a0\u00a0\u00a0\u00a0return b + c;<\/div>\n
}<\/div>\n
int main(void)<\/div>\n
{<\/div>\n
\u00a0\u00a0\u00a0\u00a0int ret;<\/div>\n
\u00a0\u00a0\u00a0\u00a0ret = callee_func1(0);<\/div>\n
\u00a0\u00a0\u00a0\u00a0return 0;<\/div>\n
}<\/div>\n
<\/div>\n
\u5bf9\u8be5\u7a0b\u5e8f\u8fdb\u884c\u7f16\u8bd1\u4ee5\u53ca\u53cd\u6c47\u7f16\u64cd\u4f5c\uff1a<\/strong><\/div>\n
aarch64-linux-gnu-gcc test.c -o test<\/div>\n
aarch64-linux-gnu-objdump -d test > disassemble.txt<\/div>\n
<\/div>\n
\u6253\u5f00disassemble.txt\u67e5\u770b\u6c47\u7f16\u4ee3\u7801\uff1a<\/strong><\/div>\n
\u4e09\u4e2a\u51fd\u6570\u6c47\u7f16\u4ee3\u7801\u7684text\u6bb5\u7684\u6392\u5e8f\u548c\u6e90\u7801\u4e00\u81f4\uff08\u4ece 0000000000400520\u00a0\u5230\u00a00000000000400594\uff09\uff1a<\/div>\n
0000000000400520 <callee_func2<\/span>>:<\/div>\n
01\u00a0 400520:\u00a0\u00a0\u00a0d10083ff\u00a0\u00a0\u00a0\u00a0sub sp, sp, #0x20\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u53ea\u662f\u6700\u540e\u4e00\u7ea7\u51fd\u6570\uff0c\u4e0d\u518d\u8c03\u7528\u5176\u4ed6\u51fd\u6570\uff0c\u7ecf\u8fc7\u7f16\u8bd1\u5668\u4f18\u5316\u540e\uff0cFP\/LR\u90fd\u6ca1\u5b58\u5165\u5806\u6808\u4e86\uff0c\u56e0\u4e3aFP\/LR\u5728\u8be5\u7c7b\u51fd\u6570\u4e2d\u4e0d\u518d\u6539\u53d8\u3002\u628asp\u51cf\u53bb32\uff08\u5373\u8be5\u51fd\u6570\u4f7f\u752832\u5b57\u8282\u6808\u7a7a\u95f4\uff09\u3002<\/div>\n
02\u00a0 400524:\u00a0\u00a0\u00a0b9000fe0\u00a0\u00a0\u00a0\u00a0str w0, [sp,#12]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628aW0\uff08\u53c2\u6570a\uff09\u5b58\u5165\u6808sp+12\u5904\u3002<\/div>\n
03\u00a0 400528:\u00a0\u00a0\u00a052800040\u00a0\u00a0\u00a0\u00a0mov w0, #0x2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u628a #2\uff08\u7acb\u5373\u6570\uff09\u5b58\u5165W0\u3002<\/div>\n
04\u00a0 40052c:\u00a0\u00a0\u00a0b9001fe0\u00a0\u00a0\u00a0\u00a0str w0, [sp,#28]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628aW0\uff08\u7acb\u5373\u65702\uff09\u5b58\u5165\u6808sp+28\u5904\u3002<\/div>\n
05\u00a0 400530:\u00a0\u00a0\u00a0b9400fe1\u00a0\u00a0\u00a0\u00a0ldr w1, [sp,#12]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628a\u6808sp+12\u5904\u6570\u636e\uff08\u53c2\u6570a\uff09\u5b58\u5165W1\u3002<\/div>\n
06\u00a0 400534:\u00a0\u00a0\u00a0b9401fe0\u00a0\u00a0\u00a0\u00a0ldr w0, [sp,#28]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628a\u6808sp+28\u5904\u6570\u636e\uff08\u7acb\u5373\u65702\uff09\u5b58\u5165W0\u3002<\/div>\n
07\u00a0 400538:\u00a0\u00a0\u00a00b000020\u00a0\u00a0\u00a0\u00a0add w0, w1, w0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/W0 =\u00a0W1+W0\uff0c\u5b58\u5165W0\u4f5c\u4e3a\u8fd4\u56de\u503c\u3002<\/div>\n
08\u00a0 40053c:\u00a0\u00a0\u00a0910083ff\u00a0\u00a0\u00a0\u00a0add sp, sp, #0x20\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628asp\u589e\u52a032\uff08\u5373\u6062\u590dsp\uff09\uff0csp\u6307\u5411\u8c03\u7528callee_func2\u4e4b\u524dcallee_func1\u51fd\u6570\u7684sp\u5904\u3002<\/div>\n
09\u00a0 400540:\u00a0\u00a0\u00a0d65f03c0\u00a0\u00a0\u00a0\u00a0ret\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4eceX30(LR)\u4e2d\u6062\u590dPC\u5bc4\u5b58\u5668\u4e3a400560\uff0c\u5373\u8fd4\u56demain_27\u884c\u5904\u6267\u884c\u3002<\/div>\n
0000000000400544 <callee_func1<\/span>>:<\/div>\n
10\u00a0 400544:\u00a0\u00a0\u00a0a9bd7bfd\u00a0\u00a0\u00a0\u00a0stp x29, x30, [sp,#-48]!\u00a0 \u00a0 \u00a0 \u00a0\/\/ \u7d22\u5f15\u6a21\u5f0f\uff1a\u5148\u628aX30(LR)\u5b58\u5165\u6808sp-48+8\u5904\uff0c\u518d\u628aX29(FP)\u5b58\u5165\u5806\u6808sp-48\u5904\uff0c\u6700\u540esp\u81ea\u8eab\u51cf\u53bb48byte\uff08\u5373\u8be5\u51fd\u6570\u4f7f\u752832\u5b57\u8282\u6808\u7a7a\u95f4\uff09\uff0c\u5806\u6808\u4ece\u9ad8\u5730\u5740\u5f80\u4f4e\u5730\u5740\u751f\u957f\u3002<\/div>\n
11\u00a0 400548:\u00a0\u00a0\u00a0910003fd\u00a0\u00a0\u00a0\u00a0mov x29, sp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628asp\u5b58\u5165FP\u3002<\/div>\n
12\u00a0 40054c:\u00a0\u00a0\u00a0b9001fa0\u00a0\u00a0\u00a0\u00a0str w0, [x29,#28]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628aW0\uff08\u53c2\u6570a\uff09\u5b58\u5165FP+28\u6808\u7684\u4f4d\u7f6e\u3002<\/div>\n
13\u00a0 400550:\u00a0\u00a0\u00a052800020\u00a0\u00a0\u00a0\u00a0mov w0, #0x1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u628a#1\uff08\u5c40\u90e8\u53d8\u91cfb\uff09\u5b58\u5165W0\u5bc4\u5b58\u5668\u3002<\/div>\n
14\u00a0 400554:\u00a0\u00a0\u00a0b9002fa0\u00a0\u00a0\u00a0\u00a0str w0, [x29,#44]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628aW0\uff08\u5c40\u90e8\u53d8\u91cfb\uff09\u5b58\u5165FP+44\u6808\u7684\u4f4d\u7f6e\u3002\uff1f\uff1f\uff1f<\/div>\n
15\u00a0 400558:\u00a0\u00a0\u00a0b9401fa0\u00a0\u00a0\u00a0\u00a0ldr w0, [x29,#28]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628aFP+28\u7684\u5185\u5b58\uff08\u53c2\u6570a\uff09\u5b58\u5165W0\u5bc4\u5b58\u5668\uff0c\u4f5c\u4e3acallee_func2\u51fd\u6570\u7684\u53c2\u6570\u3002<\/div>\n
16\u00a0 40055c:\u00a0\u00a0\u00a097fffff1\u00a0\u00a0\u00a0\u00a0bl\u00a0\u00a0400520 <callee_func2>\u00a0 \u00a0 \u00a0\/\/\u8c03\u7528callee_func2\u51fd\u6570\uff0c\u5e76\u4e14\u628a\u8fd4\u56de\u5730\u5740400560\uff08\u5f53\u524d\u6307\u4ee4\u5730\u5740+4\uff09\u5b58\u5165X30(LR)\u5bc4\u5b58\u5668\uff08\u524d\u4e00\u4e2a\u51fd\u6570\u7684LR\u5df2\u5165\u6808\uff09\u3002<\/div>\n
17\u00a0 400560:\u00a0\u00a0\u00a0b9002ba0\u00a0\u00a0\u00a0\u00a0str w0, [x29,#40]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/callee_func2\u8fd4\u56de\u540e\uff0cPC\u6307\u5411\u8be5\u5904\u3002\u628aW0\uff08callee_func2\u7684\u8fd4\u56de\u503c\uff09\u5b58\u5165\u6808FP+40\u5904\u3002<\/div>\n
18\u00a0 400564:\u00a0\u00a0\u00a0b9402fa1\u00a0\u00a0\u00a0\u00a0ldr w1, [x29,#44]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628a\u6808FP+44\u5904\u7684\u6570\u636e\uff08\u5373\u53d8\u91cfb\uff09\u5b58\u5165W1\u3002<\/div>\n
19\u00a0 400568:\u00a0\u00a0\u00a0b9402ba0\u00a0\u00a0\u00a0\u00a0ldr w0, [x29,#40]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628a\u6808FP+40\u5904\u7684\u6570\u636e\uff08\u5373\u53d8\u91cfc\uff0c\u4e5f\u5c31\u662fcalle_func2\u7684\u8fd4\u56de\u503c\uff09\u5b58\u5165W0\u3002<\/div>\n
20\u00a0 40056c:\u00a0\u00a0\u00a00b000020\u00a0\u00a0\u00a0\u00a0add w0, w1, w0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u628aW1+W0\u76f8\u52a0\uff08\u5373b+c\uff09\uff0c\u5b58\u5165W0\u4f5c\u4e3a\u51fd\u6570\u8fd4\u56de\u503c\u3002<\/div>\n
21\u00a0 400570:\u00a0\u00a0\u00a0a8c37bfd\u00a0\u00a0\u00a0\u00a0ldp x29, x30, [sp],#48\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u5148\u4eceSP\u5904\u5f39\u51faX29(FP)\uff0c\u518d\u4eceSP+8\u5904\u5f39\u51faX30(LR)\uff0c\u6700\u540e\u628asp\u589e\u52a048byte\uff0c\u5373sp\u6307\u5411\u4e86\u8c03\u7528callee_func1\u4e4b\u524dmain\u51fd\u6570\u7684sp\u5904\u3002<\/div>\n
22\u00a0 400574:\u00a0\u00a0\u00a0d65f03c0\u00a0\u00a0\u00a0\u00a0ret\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4eceX30(LR)\u4e2d\u6062\u590dPC\u5bc4\u5b58\u5668\u4e3a400588\uff0c\u5373\u8fd4\u56demain_27\u884c\u5904\u6267\u884c\u3002<\/div>\n
0000000000400578 <main<\/span>>: \/\/\u5047\u5b9ashell\u8c03\u7528main\u51fd\u6570<\/div>\n
23\u00a0 \u00a0400578:\u00a0\u00a0\u00a0a9be7bfd\u00a0\u00a0\u00a0\u00a0stp x29, x30, [sp,#-32]!\u00a0 \u00a0 \u00a0 \/\/ \u7d22\u5f15\u6a21\u5f0f\uff1a\u5148\u628aX30(LR)\u5b58\u5165\u6808sp-32+8\u5904\uff0c\u518d\u628aX29(FP)\u5b58\u5165\u5806\u6808sp-32\u5904\uff0c\u6700\u540esp\u81ea\u8eab\u51cf\u53bb32byte\uff08\u5373\u8be5\u51fd\u6570\u4f7f\u752832\u5b57\u8282\u6808\u7a7a\u95f4\uff09\uff0c\u5806\u6808\u4ece\u9ad8\u5730\u5740\u5f80\u4f4e\u5730\u5740\u751f\u957f\u3002 <\/span><\/div>\n
24\u00a0 \u00a040057c:\u00a0\u00a0\u00a0910003fd\u00a0\u00a0\u00a0\u00a0mov x29, sp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u628asp\u5b58\u5165FP\u3002<\/div>\n
25\u00a0 \u00a0400580:\u00a0\u00a0\u00a052800000\u00a0\u00a0\u00a0\u00a0mov w0, #0x0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u628a#0\uff08\u7acb\u5373\u6570\uff09\u5b58\u5165W0\u5bc4\u5b58\u5668\uff0c\u4f5c\u4e3acallee_func1\u51fd\u6570\u7684\u53c2\u6570\u3002<\/div>\n
26\u00a0 \u00a0400584:\u00a0\u00a0\u00a097fffff0\u00a0\u00a0\u00a0\u00a0bl\u00a0\u00a0400544 <callee_func1>\u00a0 \u00a0 \/\/\u8c03\u7528callee_func1\u51fd\u6570\uff0c\u5e76\u4e14\u628a\u8fd4\u56de\u5730\u5740400588\uff08\u5f53\u524d\u6307\u4ee4\u5730\u5740+4\uff09\u5b58\u5165X30(LR)\u5bc4\u5b58\u5668\uff08\u524d\u4e00\u4e2a\u51fd\u6570\u7684LR\u5df2\u5165\u6808\uff09\u3002<\/div>\n
27\u00a0 \u00a0400588:\u00a0\u00a0\u00a0b9001fa0\u00a0\u00a0\u00a0\u00a0str w0, [x29,#28]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/callee_func1\u8fd4\u56de\u540e\uff0cPC\u6307\u5411\u8be5\u5904\u3002\u628aW0\uff08callee_func1\u7684\u8fd4\u56de\u503c\uff09\u5b58\u5165\u6808FP+28\u5904\u3002<\/div>\n
28\u00a0 \u00a040058c:\u00a0\u00a0\u00a052800000\u00a0\u00a0\u00a0\u00a0mov w0, #0x0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u628a#0\uff08\u7acb\u5373\u6570\uff09\u5b58\u5165W0\u5bc4\u5b58\u5668\uff0c\u4f5c\u4e3amain\u51fd\u6570\u7684\u8fd4\u56de\u503c\u3002<\/div>\n
29\u00a0 \u00a0400590:\u00a0\u00a0\u00a0a8c27bfd\u00a0\u00a0\u00a0\u00a0ldp x29, x30, [sp],#32\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/ \u5148\u4eceSP\u5904\u5f39\u51faX29(FP)\uff0c\u518d\u4eceSP+8\u5904\u5f39\u51faX30(LR)\uff0c\u6700\u540e\u628asp\u589e\u52a032byte\uff0c\u5373sp\u6307\u5411\u4e86\u8c03\u7528callee_func1\u4e4b\u524dmain\u51fd\u6570\u7684sp\u5904\u3002 <\/span><\/div>\n
30\u00a0 \u00a0400594:\u00a0\u00a0\u00a0d65f03c0\u00a0\u00a0\u00a0\u00a0ret\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4eceX30(LR)\u4e2d\u6062\u590dPC\u5bc4\u5b58\u5668\uff0c\u5373\u8fd4\u56deshell\u3002<\/div>\n
<\/div>\n
\u4e0a\u9762\u7a0b\u5e8f\u7684\u6808\u89c6\u56fe\uff1a<\/strong><\/div>\n
\"\"<\/a><\/div>\n
<\/div>\n
\u7279\u6b8a\u8bf4\u660e\uff0c\u5728ARM64\u91cc\u9762\u538b\u6808\u51fa\u6808\u6307\u4ee4\uff1a<\/strong><\/div>\n
\n
stp x29, x30, [sp,#-32]!\u00a0 \u00a0 \u00a0 \u00a0\/\/\u7d22\u5f15\u6a21\u5f0f\uff0c”!”\u8868\u793a\u5148\u7d22\u5f15\u52a0\u7acb\u5373\u6570\uff0c\u7136\u540e\u518d\u4fdd\u5b58\u6570\u636e\u6a21\u5f0f\uff1a\u5148\u628aX30\u538b\u5165\u6808sp-32+8\u5904\uff0c\u7136\u540e\u518d\u628aX29\u538b\u5165\u5806\u6808sp-32\u5904\uff0c\u6700\u540e\u628asp\u81ea\u8eab\u51cf\u53bb32byte\uff0c\u5806\u6808\u4ece\u9ad8\u5730\u5740\u5f80\u4f4e\u5730\u5740\u751f\u957f\u3002<\/div>\n
ldp x29, x30, [sp],#32\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u7d22\u5f15\u6a21\u5f0f\uff0c”[],#”\u8868\u793a\u5148\u8f7d\u5165\u6570\u636e\uff0c\u7136\u540e\u518d\u7d22\u5f15\u52a0\u7acb\u5373\u6570\u6a21\u5f0f\uff1a\u5148\u4eceSP\u5904\u5f39\u51faX29\uff0c\u7136\u540e\u518d\u4eceSP+8\u5904\u5f39\u51faX30\uff0c\u6700\u540e\u628asp\u589e\u52a032byte\uff0c\u521a\u597d\u548c\u538b\u6808\u76f8\u53cd\u3002<\/div>\n
str x19, [sp,#16]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u504f\u79fb\u6a21\u5f0f\uff0c\u628ax19\u5bc4\u5b58\u5668\u503c\u5b58\u5165\u6808sp+16\u4f4d\u7f6e\uff0csp\u4e0d\u53d8\u3002<\/div>\n
ldr x19, [sp,#16]\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u504f\u79fb\u6a21\u5f0f\uff0c\u4ece\u6808sp+16\u4f4d\u7f6e\u7684\u6570\u636e\u653e\u5165x19\u5bc4\u5b58\u5668\uff0csp\u4e0d\u53d8\u3002<\/div>\n
str\u00a0x0, [sp,#-16]!\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u7d22\u5f15\u6a21\u5f0f\uff0c\u5148\u628ax0\u538b\u5165\u6808sp-16\u5904\uff0c\u540c\u65f6sp\u518d\u51cf16byte\u3002<\/div>\n
ldr\u00a0x0, [sp],#16\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u7d22\u5f15\u6a21\u5f0f\uff0c\u5148\u4ece\u6808sp\u5904\u5f39\u51fax0\uff0c\u7136\u540e\u628asp\u589e\u52a016byte\u3002<\/div>\n<\/div>\n
<\/div>\n
\u4ece\u4e0a\u9762\u51fd\u6570\u7684\u538b\u6808\u51fa\u6808\u6a21\u5f0f\u53ef\u4ee5\u770b\u51fa\u6765\uff0c\u6bcf\u7ea7\u51fd\u6570\u8c03\u7528\u90fd\u4f1a\u628aLR\/FP\u538b\u6808\u5728FP\u6240\u6307\u5411\u7684\u5185\u5b58\u4f4d\u7f6e\uff08\u5f53\u7136\u8ddf\u7f16\u8bd1\u5668\u6709\u5173\uff0cclang\u548cgcc\u662f\u8fd9\u6837\u505a\u7684\uff0c\u5176\u4ed6\u7f16\u8bd1\u5668\u672a\u5fc5\uff0c\u7136\u540e\u8fd8\u6709\u4e2a\u7f16\u8bd1\u53c2\u6570-mapcs-frame\uff0c\u4f1a\u5728\u51fd\u6570\u6808\u91cc\u9762\u538b\u5165PC\/LR\/SP\/FP\u56db\u4e2a\u5bc4\u5b58\u5668\uff09\uff0c\u6240\u4ee5\u7cfb\u7edfpanic\uff08coredump\uff09\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u4e00\u7ea7\u4e00\u7ea7\u7684\u4ece\u6808\u7684SP\/LR\/FP\u5f80\u524d\u63a8\u3002 <\/strong><\/span><\/div>\n
\u6bd4\u5982\u8fd9\u4e2a\u6808\u4fe1\u606f\uff1a<\/strong><\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n
\u00a0\u00a0 \u00a0\u4eceFP\u770b\u5230stack\u7684\u5185\u5bb9\uff0c\u57280x0000007fd95ac150\u00a0\u5904\u4fdd\u5b58\u7684\u662f\u4e0a\u4e00\u4e2a\u51fd\u6570\u7684FP\/SP\uff080x00000000d95ac270 0x000000000000007f\uff0c\u5408\u8d77\u6765\u53730x0000007fd95ac270\uff09\u548cLR\uff080x000000008e0f51d0 0x00000000000007f\uff0c\u5408\u8d77\u6765\u53730x0000007f8e0f51d0\uff0c\u5373abort\u51fd\u6570\uff09\uff0c\u518d\u5f80\u524d\u63a8\u4e00\u7ea7\uff0c0x0000007fd95ac270\u5904FP\/SP\uff080x0000007fd95ac3b0\uff09\u548cLR\uff080x0000007f8e3d2af8\uff0c\u5373__gun_cxx::__verbose_terminate_handler\u51fd\u6570\uff09\u3002<\/div>\n
<\/div>\n
\u9644\uff1aARM64\u5bc4\u5b58\u5668<\/strong><\/span><\/div>\n

\u5f02\u5e38\u7b49\u7ea7<\/h2>\n
\u8f6f\u4ef6\u8fd0\u884c\u5f02\u5e38\u7ea7\u522b\uff1a<\/div>\n