Linux AT&T 汇编错误：Error: invalid instruction suffix for `push'

最新推荐文章于 2021-12-16 19:32:38 发布
原创 最新推荐文章于 2021-12-16 19:32:38 发布 · 8.3k 阅读 · 2 ·
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#linux汇编 #ATT汇编

本文介绍在64位Linux系统下使用AT&T语法编写32位汇编程序时遇到的错误：“Error:invalid instructionsuffixfor`push'”，并提供了解决方案：在代码开头添加.code32。

在 Linux 使用 AT&T 语法写汇编程序时

程序中有一条命令为：pushl %eax

使用 as 编译时出现错误：Error: invalid instruction suffix for `push'


原因是 64 位系统和 32 位系统的差别引起的


解决方法为：

在代码开头添加 .code32 即可

ubuntu20下编译linux1.0 (part1)
hjjdebug的专栏
01-09 1155
1. 下载源码: 2. 根据readme, 将代码解压到/usr/src/linux 下 3. 解决 dep 依赖问题 4. 生成压缩的内核文件 5. 最后的问题： tools/zSystem 已经生成后, 内核压缩问题 6. 小结
板凳——————————————————(枯藤 )MIX汇编 前导(4)
fengye207161的博客
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https://www.dazhuanlan.com/2020/01/17/5e216a2472e4c/ 汇编学习笔记 这里主要讲述的是函数的调用，在汇编中是怎么实现的。但是我还是没看懂，要一点点的画寄存器的状态图吧。 首先，碰到了几个问题，我使用的Linux环境是64位的。 如果使用pushl和popl， 会出现 “invalid instruction suffix for push” 这是因为pushl和popl都是适用在32bit系统上的，因为64-bit 的系统，不接受32-bit的数值，所以用p
汇编代码 编译出现-invalid instruction suffix for push
Ailson Jack的专栏
08-29 1万+
By:Ailson Jack Date:2018.08.29 个人博客:www.only2fire.com          本文在我博客的地址是：http://www.only2fire.com/archives/67.html，排版更好，便于学习，也可以去我博客逛逛，兴许有你想要的内容呢。          最近在阅读《Linux内核完全注释》这本书，试图多了解Linux内核的运行过程...
【Error】AT&T汇编 报错 Error: invalid instruction suffix for `push' 或 pop
think_ycx的专栏
03-02 4104
为什么要学AT&T汇编呢？因为喜欢Linux。 关于intel汇编和AT&T汇编的区别，参考LinuxC一站式编程： 要彻底搞清楚C语言的原理，必须要深入到指令一层去理解。你写一行C代码，编译器会生成什 么样的指令，要做到心中有数。 x86 汇编的两种语法：intel 语法和AT&T 语法 x86汇编一直存在两种不同的语法，在intel 的官方文档中使 用intel ...
汇编小错误集
funsion的专栏
05-13 2359
end of file not at end of a line; newline inserted 英文的意思就是说文末没有换行符。Unix文档的回车换行符是一个字符\n，Windows的是分别的两个\n\r， 解决方法：在文件结尾回车一下 invalid instruction suffix for `pop' 原因是 64 位系统和 32 位系统的差别引起的 解决方法为： 在代码开头添加 .code32 即可 ...
Assembler--Error: invalid instruction suffix for `push‘
xiaozhi
12-16 1341
在64位系统和32位系统的as命令对于某些汇编指令的处理支持不一样造成的。可在代码头部添加.code32，但又会报另外的错：Error: bad register name `%rax', 等一系统不正确的寄存器名。
随笔二十八：invalid instruction suffix for push'
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Tyrion Lannister's Special column
07-03 1万+
主机环境 Fedora 17 X86_64 编写 pushl %ebp 想执行 cc -O1 -c test.s objdump -d test.o 想看看在目标代码中 pushl 指令编码为几个字节，但在执行第一个命令时出现错误： invalid instruction suffix for push' 在网上查找信息，得到问题的原因及解决方法： 64位汇编与32位汇编不大一样，
sers\97003\AppData\Local\Temp\ccuToHew.s: Assembler messages: C:\Users\97003\AppData\Local\Temp\ccuToHew.s:25: Error: invalid instruction suffix for `push' C:\Users\97003\AppData\Local\Temp\ccuToHew.s:31: Error: operand type mismatch for `call'
07-21
抱歉，看起来在转换汇编指令时出现了一些问题。尝试使用以下代码，它应该可以在MinGW-w64中正常编译和运行： ```cpp #include #define vPushData 0x10 #define vCall 0x12 #define vEnd 0xff char *str = "Hello...
tianhangsong@ubuntu:~/NachOS-4.1/code/build.linux$ make depend g++ -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -M ../lib/bitmap.cc ../lib/debug.cc ../lib/hash.cc ../lib/libtest.cc ../lib/list.cc ../lib/sysdep.cc ../machine/interrupt.cc ../machine/stats.cc ../machine/timer.cc ../machine/console.cc ../machine/machine.cc ../machine/mipssim.cc ../machine/translate.cc ../machine/network.cc ../machine/disk.cc ../threads/alarm.cc ../threads/kernel.cc ../threads/main.cc ../threads/scheduler.cc ../threads/synch.cc ../threads/synchlist.cc ../threads/thread.cc ../userprog/addrspace.cc ../userprog/exception.cc ../userprog/synchconsole.cc ../filesys/directory.cc ../filesys/filehdr.cc ../filesys/filesys.cc ../filesys/pbitmap.cc ../filesys/openfile.cc ../filesys/synchdisk.cc ../network/post.cc > makedep ed - Makefile.dep < eddep rm eddep makedep tianhangsong@ubuntu:~/NachOS-4.1/code/build.linux$ make g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../lib/bitmap.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../lib/debug.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../lib/libtest.cc ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] "7", "8", "9", "10", "11", "12", "13", "14"}; ^ ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../lib/libtest.cc:59:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../lib/sysdep.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/interrupt.cc ../machine/interrupt.cc:29:45: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] static char *intLevelNames[] = { "off", "on"}; ^ ../machine/interrupt.cc:29:45: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] "network recv"}; ^ ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/interrupt.cc:32:18: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/stats.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/timer.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/console.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/machine.cc ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] "illegal instruction" }; ^ ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/machine.cc:19:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/mipssim.cc In file included from ../machine/mipssim.cc:22:0: ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] }; ^ ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.h:227:7: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ../machine/mipssim.cc: In member function ‘void Machine::OneInstruction(Instruction*)’: ../machine/mipssim.cc:139:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] struct OpString *str = &opStrings[instr->opCode]; ^ ../machine/mipssim.cc:158:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum = registers[instr->rs] + registers[instr->rt]; ^ ../machine/mipssim.cc:158:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum = registers[instr->rs] + registers[instr->rt]; ^ ../machine/mipssim.cc:159:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (!((registers[instr->rs] ^ registers[instr->rt]) & SIGN_BIT) && ^ ../machine/mipssim.cc:159:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (!((registers[instr->rs] ^ registers[instr->rt]) & SIGN_BIT) && ^ ../machine/mipssim.cc:160:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] ((registers[instr->rs] ^ sum) & SIGN_BIT)) { ^ ../machine/mipssim.cc:164:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = sum; ^ ../machine/mipssim.cc:168:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:169:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (!((registers[instr->rs] ^ instr->extra) & SIGN_BIT) && ^ ../machine/mipssim.cc:174:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = sum; ^ ../machine/mipssim.cc:178:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:178:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:182:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] + registers[instr->rt]; ^ ../machine/mipssim.cc:182:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] + registers[instr->rt]; ^ ../machine/mipssim.cc:182:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] + registers[instr->rt]; ^ ../machine/mipssim.cc:186:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] & registers[instr->rt]; ^ ../machine/mipssim.cc:186:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] & registers[instr->rt]; ^ ../machine/mipssim.cc:186:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] & registers[instr->rt]; ^ ../machine/mipssim.cc:190:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] & (instr->extra & 0xffff); ^ ../machine/mipssim.cc:190:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] & (instr->extra & 0xffff); ^ ../machine/mipssim.cc:194:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] == registers[instr->rt]) ^ ../machine/mipssim.cc:194:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] == registers[instr->rt]) ^ ../machine/mipssim.cc:201:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (!(registers[instr->rs] & SIGN_BIT)) ^ ../machine/mipssim.cc:206:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] > 0) ^ ../machine/mipssim.cc:211:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] <= 0) ^ ../machine/mipssim.cc:218:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] & SIGN_BIT) ^ ../machine/mipssim.cc:223:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] != registers[instr->rt]) ^ ../machine/mipssim.cc:223:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] != registers[instr->rt]) ^ ../machine/mipssim.cc:228:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rt] == 0) { ^ ../machine/mipssim.cc:232:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[LoReg] = registers[instr->rs] / registers[instr->rt]; ^ ../machine/mipssim.cc:232:68: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[LoReg] = registers[instr->rs] / registers[instr->rt]; ^ ../machine/mipssim.cc:233:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[HiReg] = registers[instr->rs] % registers[instr->rt]; ^ ../machine/mipssim.cc:233:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[HiReg] = registers[instr->rs] % registers[instr->rt]; ^ ../machine/mipssim.cc:238:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] rs = (unsigned int) registers[instr->rs]; ^ ../machine/mipssim.cc:239:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] rt = (unsigned int) registers[instr->rt]; ^ ../machine/mipssim.cc:258:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[NextPCReg] + 4; ^ ../machine/mipssim.cc:260:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] pcAfter = registers[instr->rs]; ^ ../machine/mipssim.cc:265:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:279:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:297:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = instr->extra << 16; ^ ../machine/mipssim.cc:301:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:313:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:341:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextLoadValue = registers[instr->rt]; ^ ../machine/mipssim.cc:365:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:393:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextLoadValue = registers[instr->rt]; ^ ../machine/mipssim.cc:421:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[HiReg]; ^ ../machine/mipssim.cc:425:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[LoReg]; ^ ../machine/mipssim.cc:429:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[HiReg] = registers[instr->rs]; ^ ../machine/mipssim.cc:433:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[LoReg] = registers[instr->rs]; ^ ../machine/mipssim.cc:437:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] Mult(registers[instr->rs], registers[instr->rt], TRUE, ^ ../machine/mipssim.cc:437:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] Mult(registers[instr->rs], registers[instr->rt], TRUE, ^ ../machine/mipssim.cc:442:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] Mult(registers[instr->rs], registers[instr->rt], FALSE, ^ ../machine/mipssim.cc:442:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] Mult(registers[instr->rs], registers[instr->rt], FALSE, ^ ../machine/mipssim.cc:447:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = ~(registers[instr->rs] | registers[instr->rt]); ^ ../machine/mipssim.cc:447:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = ~(registers[instr->rs] | registers[instr->rt]); ^ ../machine/mipssim.cc:447:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = ~(registers[instr->rs] | registers[instr->rt]); ^ ../machine/mipssim.cc:451:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] | registers[instr->rt]; ^ ../machine/mipssim.cc:451:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] | registers[instr->rt]; ^ ../machine/mipssim.cc:451:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] | registers[instr->rt]; ^ ../machine/mipssim.cc:455:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] | (instr->extra & 0xffff); ^ ../machine/mipssim.cc:455:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] | (instr->extra & 0xffff); ^ ../machine/mipssim.cc:460:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 1, registers[instr->rt])) ^ ../machine/mipssim.cc:460:64: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 1, registers[instr->rt])) ^ ../machine/mipssim.cc:466:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 2, registers[instr->rt])) ^ ../machine/mipssim.cc:466:64: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 2, registers[instr->rt])) ^ ../machine/mipssim.cc:471:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] << instr->extra; ^ ../machine/mipssim.cc:471:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] << instr->extra; ^ ../machine/mipssim.cc:475:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] << ^ ../machine/mipssim.cc:475:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] << ^ ../machine/mipssim.cc:476:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] & 0x1f); ^ ../machine/mipssim.cc:480:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] < registers[instr->rt]) ^ ../machine/mipssim.cc:480:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] < registers[instr->rt]) ^ ../machine/mipssim.cc:481:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = 1; ^ ../machine/mipssim.cc:483:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = 0; ^ ../machine/mipssim.cc:487:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (registers[instr->rs] < instr->extra) ^ ../machine/mipssim.cc:488:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = 1; ^ ../machine/mipssim.cc:490:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = 0; ^ ../machine/mipssim.cc:494:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] rs = registers[instr->rs]; ^ ../machine/mipssim.cc:497:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = 1; ^ ../machine/mipssim.cc:499:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = 0; ^ ../machine/mipssim.cc:503:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] rs = registers[instr->rs]; ^ ../machine/mipssim.cc:504:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] rt = registers[instr->rt]; ^ ../machine/mipssim.cc:506:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = 1; ^ ../machine/mipssim.cc:508:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = 0; ^ ../machine/mipssim.cc:512:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] >> instr->extra; ^ ../machine/mipssim.cc:512:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] >> instr->extra; ^ ../machine/mipssim.cc:516:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] >> ^ ../machine/mipssim.cc:516:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rt] >> ^ ../machine/mipssim.cc:517:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] & 0x1f); ^ ../machine/mipssim.cc:521:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rt]; ^ ../machine/mipssim.cc:523:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = tmp; ^ ../machine/mipssim.cc:527:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rt]; ^ ../machine/mipssim.cc:528:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp >>= (registers[instr->rs] & 0x1f); ^ ../machine/mipssim.cc:529:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = tmp; ^ ../machine/mipssim.cc:533:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] diff = registers[instr->rs] - registers[instr->rt]; ^ ../machine/mipssim.cc:533:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] diff = registers[instr->rs] - registers[instr->rt]; ^ ../machine/mipssim.cc:534:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (((registers[instr->rs] ^ registers[instr->rt]) & SIGN_BIT) && ^ ../machine/mipssim.cc:534:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (((registers[instr->rs] ^ registers[instr->rt]) & SIGN_BIT) && ^ ../machine/mipssim.cc:535:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] ((registers[instr->rs] ^ diff) & SIGN_BIT)) { ^ ../machine/mipssim.cc:539:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = diff; ^ ../machine/mipssim.cc:543:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] - registers[instr->rt]; ^ ../machine/mipssim.cc:543:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] - registers[instr->rt]; ^ ../machine/mipssim.cc:543:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] - registers[instr->rt]; ^ ../machine/mipssim.cc:548:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 4, registers[instr->rt])) ^ ../machine/mipssim.cc:548:64: warning: array subscript has type ‘char’ [-Wchar-subscripts] (registers[instr->rs] + instr->extra), 4, registers[instr->rt])) ^ ../machine/mipssim.cc:553:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:585:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = registers[instr->rt]; ^ ../machine/mipssim.cc:588:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xff000000) | ((registers[instr->rt] >> 8) & ^ ../machine/mipssim.cc:592:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xffff0000) | ((registers[instr->rt] >> 16) & ^ ../machine/mipssim.cc:596:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xffffff00) | ((registers[instr->rt] >> 24) & ^ ../machine/mipssim.cc:612:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp = registers[instr->rs] + instr->extra; ^ ../machine/mipssim.cc:644:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xffffff) | (registers[instr->rt] << 24); ^ ../machine/mipssim.cc:647:53: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xffff) | (registers[instr->rt] << 16); ^ ../machine/mipssim.cc:650:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = (value & 0xff) | (registers[instr->rt] << 8); ^ ../machine/mipssim.cc:653:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] value = registers[instr->rt]; ^ ../machine/mipssim.cc:675:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] ^ registers[instr->rt]; ^ ../machine/mipssim.cc:675:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] ^ registers[instr->rt]; ^ ../machine/mipssim.cc:675:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rd] = registers[instr->rs] ^ registers[instr->rt]; ^ ../machine/mipssim.cc:679:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] ^ (instr->extra & 0xffff); ^ ../machine/mipssim.cc:679:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] registers[instr->rt] = registers[instr->rs] ^ (instr->extra & 0xffff); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/translate.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/network.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../machine/disk.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/alarm.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/kernel.cc ../threads/kernel.cc: In member function ‘void Kernel::Initialize()’: ../threads/kernel.cc:93:38: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] currentThread = new Thread("main"); ^ ../threads/kernel.cc: In member function ‘void Kernel::ThreadSelfTest()’: ../threads/kernel.cc:152:39: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] semaphore = new Semaphore("test", 0); ^ ../threads/kernel.cc: In member function ‘void Kernel::NetworkTest()’: ../threads/kernel.cc:208:22: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] char *data = "Hello there!"; ^ ../threads/kernel.cc:209:21: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] char *ack = "Got it!"; ^ In file included from ../threads/synchlist.h:49:0, from ../threads/kernel.cc:14: ../threads/synchlist.cc: In instantiation of ‘SynchList<T>::SynchList() [with T = int]’: ../threads/kernel.cc:158:20: required from here ../threads/synchlist.cc:26:10: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] lock = new Lock("list lock"); ^ ../threads/synchlist.cc:27:15: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] listEmpty = new Condition("list empty cond"); ^ ../threads/synchlist.cc: In instantiation of ‘void SynchList<T>::SelfTest(T) [with T = int]’: ../threads/kernel.cc:159:25: required from here ../threads/synchlist.cc:120:39: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] Thread *helper = new Thread("ping"); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/main.cc ../threads/main.cc:59:8: warning: extra tokens at end of #endif directive [enabled by default] #endif TUT ^ In file included from ../threads/main.cc:41:0: ../lib/copyright.h:23:26: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] static char *copyright = "Copyright (c) 1992-1993 The Regents of the University of California. All rights reserved."; ^ ../threads/main.cc: In function ‘int main(int, char**)’: ../threads/main.cc:182:22: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] char *debugArg = ""; ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/scheduler.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/synch.cc ../threads/synch.cc: In member function ‘void Semaphore::SelfTest()’: ../threads/synch.cc:138:39: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] Thread *helper = new Thread("ping"); ^ ../threads/synch.cc:141:35: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ping = new Semaphore("ping", 0); ^ ../threads/synch.cc: In constructor ‘Lock::Lock(char*)’: ../threads/synch.cc:161:40: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] semaphore = new Semaphore("lock", 1); // initially, unlocked ^ ../threads/synch.cc: In member function ‘void Condition::Wait(Lock*)’: ../threads/synch.cc:250:43: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] waiter = new Semaphore("condition", 0); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../threads/thread.cc ../threads/thread.cc: In member function ‘void Thread::SelfTest()’: ../threads/thread.cc:430:43: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] Thread *t = new Thread("forked thread"); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../userprog/addrspace.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../userprog/exception.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../userprog/synchconsole.cc ../userprog/synchconsole.cc: In constructor ‘SynchConsoleInput::SynchConsoleInput(char*)’: ../userprog/synchconsole.cc:23:33: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] lock = new Lock("console in"); ^ ../userprog/synchconsole.cc:24:44: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] waitFor = new Semaphore("console in", 0); ^ ../userprog/synchconsole.cc: In constructor ‘SynchConsoleOutput::SynchConsoleOutput(char*)’: ../userprog/synchconsole.cc:79:34: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] lock = new Lock("console out"); ^ ../userprog/synchconsole.cc:80:45: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] waitFor = new Semaphore("console out", 0); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/directory.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/filehdr.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/filesys.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/pbitmap.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/openfile.cc g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../filesys/synchdisk.cc ../filesys/synchdisk.cc: In constructor ‘SynchDisk::SynchDisk()’: ../filesys/synchdisk.cc:30:46: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] semaphore = new Semaphore("synch disk", 0); ^ ../filesys/synchdisk.cc:31:38: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] lock = new Lock("synch disk lock"); ^ g++ -ftemplate-depth-100 -Wno-deprecated -g -Wall -fpermissive -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -DFILESYS_STUB -DRDATA -DSIM_FIX -DTUT -Dx86 -DLINUX -DCHANGED -m32 -c ../network/post.cc ../network/post.cc: In constructor ‘PostOfficeInput::PostOfficeInput(int)’: ../network/post.cc:155:60: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] messageAvailable = new Semaphore("message available", 0); ^ ../network/post.cc:162:43: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] Thread *t = new Thread("postal worker"); ^ ../network/post.cc: In constructor ‘PostOfficeOutput::PostOfficeOutput(double)’: ../network/post.cc:268:50: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] messageSent = new Semaphore("message sent", 0); ^ ../network/post.cc:269:44: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] sendLock = new Lock("message send lock"); ^ In file included from ../threads/synchlist.h:49:0, from ../network/post.h:34, from ../network/post.cc:20: ../threads/synchlist.cc: In instantiation of ‘SynchList<T>::SynchList() [with T = Mail*]’: ../network/post.cc:52:38: required from here ../threads/synchlist.cc:26:10: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] lock = new Lock("list lock"); ^ ../threads/synchlist.cc:27:15: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] listEmpty = new Condition("list empty cond"); ^ /lib/cpp -P -I../network -I../filesys -I../userprog -I../threads -I../machine -I../lib -Dx86 -DLINUX ../threads/switch.s > swtch.s as -o switch.o swtch.s swtch.s: Assembler messages: swtch.s:7: 错误： invalid instruction suffix for `push' swtch.s:9: 错误： invalid instruction suffix for `push' swtch.s:10: 错误： operand type mismatch for `call' swtch.s:11: 错误： operand type mismatch for `call' swtch.s:12: 错误： operand type mismatch for `call' swtch.s:14: 错误： invalid instruction suffix for `pop' Makefile:342: recipe for target 'switch.o' failed make: *** [switch.o] Error 1
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exploit_2.s: Assembler messages: exploit_2.s:2: 错误： invalid instruction suffix for `jmp'
最新发布
06-26
在汇编代码中遇到错误 `'invalid instruction suffix for 'jmp''` 通常表示 `jmp` 指令使用了不正确的后缀。在 x86 汇编语言中，`jmp` 是一个无条件跳转指令，与其他指令如 `mov` 或 `add` 不同，它不需要后缀来指定操作数的大小（例如 `jmpq`、`jmpl` 等）。因此，如果尝试为 `jmp` 添加后缀（如 `.s` 文件中的 `jmpq` 或 `jmpl`），汇编器会报错并提示无效的指令后缀[^1]。 ### 常见原因与解决方法 #### 1. **避免手动添加后缀** - 在 AT&T 汇编语法中，`jmp` 指令不需要后缀。例如，以下写法是错误的： ```assembly jmpq label_name ``` 正确的写法应该是： ```assembly jmp label_name ``` #### 2. **确保目标标签存在** - 如果跳转的目标标签不存在或拼写错误，可能会导致汇编器解析失败，从而引发其他间接错误。请确认跳转目标标签已正确定义。 #### 3. **检查寄存器或内存地址的使用** - `jmp` 可以直接跳转到一个标签，也可以间接跳转到寄存器或内存地址中存储的地址。例如： ```assembly jmp *%rax # 从寄存器 %rax 中读取地址并跳转 jmp *(%rsp) # 从栈顶读取地址并跳转 ``` 如果使用间接跳转，请确保使用的寄存器或内存引用格式正确，并且没有多余的后缀。 #### 4. **检查汇编器版本和语法兼容性** - 不同版本的汇编器（如 GNU Assembler）可能对某些语法的支持有所不同。确保使用的语法与当前工具链兼容。 --- ### 示例代码 以下是一个简单的示例，展示如何在 `.s` 文件中正确使用 `jmp`： ```assembly .section .text .global _start _start: jmp target_label # 其他代码... target_label: # 目标位置代码 mov $1, %rax syscall ``` --- ### 总结 错误 `'invalid instruction suffix for 'jmp''` 的主要原因是 `jmp` 指令被错误地添加了后缀。应确保 `jmp` 仅用于跳转而无需任何后缀，并验证跳转目标是否有效。 ---
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