Recent questions tagged GCC

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gcc - Swap with push / assignment / pop in GNU C inline assembly?

I was reading some answers and questions on here and kept coming up with this suggestion but I noticed no one ever ... getchar(); return 0; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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801 views

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gcc - Embedded C - Too many arguments to function (pointer)

I am trying to invoke the following macro in my .cpp file: #define IAP_ROM_LOCATION 0x1FFF1FF1UL #define IAP_EXECUTE_CMD( ... GCC for Cortex-M3. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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987 views

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gcc - What does the instruction mrc p15 do in ARM inline assembly?

What does this line in ARM assembly do? mrc p15, 0, %0, c9, c13, 0" : : "r" (counter) What is p15? ... and what are the roles or c9, c1? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

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gcc - Cannot modify data segment register. When tried General Protection Error is thrown

I have been trying to create an ISR handler following this tutorial by James Molloy but I got stuck. Whenever I ... . What am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

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gcc - C++ const question

If I do this: // In header class Foo { void foo(bar*); }; // In cpp void Foo::foo(bar* const pBar) { // ... is going on? I'm using gcc 4.1.x See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - Call stack backtrace in C

I am trying to get call stack backtrace at my assert/exception handler. Can't include "execinfo.h" ... reproduce full call stack backtrace? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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739 views

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gcc - linker tells me it can't resolve symbols, but they're there?

I am trying to compile a simple test app using a library I've written. This compiles and runs fine on ... other machines for many months... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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726 views

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gcc - is data shared between processes when we use fork in c?

In this C program, data is not being shared between process i.e. parent and child process. child has it's ... What is going on in background? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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721 views

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gcc - How to run manually produce an elf executable using ld?

I'm trying to get my head around how the linking process works when producing an executable. To do that I'm reading ... puts("Hello, world"); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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945 views

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gcc - Floating-point exceptions are signalling in new gfortran version

I am currently working to debug a subroutine of some software that my boss has written back in the 90s. ... Why does gfortran now complain? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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754 views

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gcc - C++ addition overload ambiguity

I am coming up against a vexing conundrum in my code base. I can't quite tell why my code generates this ... can I achieve the same behavior?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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800 views

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gcc - What is "=qm" in extended assembler

I was looking through an Intel provided reference implementation of RDRAND instruction. The page is Intel Digital ... the extended assembler? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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gcc - C/C++ to MIPS Assembly

I know that to compile to assembly, I should use the -Soption with gcc or g++, but how do I get MIPS ... using Ubuntu 64-bit, if that helps. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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822 views

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gcc - How can I create a modern cross compile toolchain for the Raspberry Pi 1?

At least Debian does not provide a usable toolchain to cross develop for the Raspberry Pi 1. The Linaro toochain ... programs from a Linux host? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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864 views

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gcc - Designated initializers and compound literals for struct in C

I have following struct: typedef struct my_struct { int a; int b; int *c; } my_struct; is: my_struct n = (my_struct) { ... ) { .b = 3, 0 }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

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gcc - Vim tries to jump to nonexistent file after :make

I'm using :make from vim and ending up jumping to the file with issues. Recently, at least I noticed with gcc 4 ... a known fix for this in vim? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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839 views

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gcc - C++ <complex> and <complex.h> in the same file

I have a large code base that uses the c++ <complex> header and many std::complex<double> objects. But now ... than just a small slice of gccs? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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815 views

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gcc - Linux: modpost does not build anything

I am having problems getting any kernel modules to build on my machine. Whenever I build a module, modpost always ... /tmp/mod-test/hello.ko See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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984 views

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gcc - iostream.h, fstream.h cannot be found

I have a 32 bit machine and I am running Ubuntu 9.10 on it. I have the latest gcc compiler. The problem ... it over my existing gcc compiler. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.1k views

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gcc - CMAKE_C_COMPILER is not a full path to an existing compiler tool

I recently explored distcc and couldn't make it work. So I sudo apt-get remove distcc After that, I ... symbolic links and removing the exports See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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847 views

1 answer

gcc - c inline assembly getting "operand size mismatch" when using cmpxchg

I'm trying to use cmpxchg with inline assembly through c. This is my code: static inline int cas(volatile void ... is using AT&T style. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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758 views

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gcc - Linking binary against functions/data in specific location in memory

I'm currently in the process of writing an intermediate-memory bootloader for an ATMega. I'd like to place a ... sure what I'm doing there. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.7k views

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gcc - undefined reference to YAML::LoadFile

I'm trying to use the new version of libyaml-cpp and having linker problems (undefined reference to 'YAML: ... something wrong with the library. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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gcc - Problems Linking boost log 1_60 with MinGw on Windows 7

On upgrading to boost 1.60.0 some applications are failing to link with boost log when built with MinGw 4.9 ... linking to fail on Windows? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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763 views

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gcc - Questions about C Function Prototypes and Compilation

With the following code: int main(){ printf("%f ",multiply(2)); return 0; } float multiply(float n){ ... scenes? Thanks a lot in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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997 views

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gcc - Compile c code with float instead of double

I have a lengthy numeric integration scheme written in C. I'd like to test my algorithm in floating point ... float in the entire program? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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815 views

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gcc - Count number of parameters in C variable argument method call

When using va_start(), va_arg() and va_end() to read parameters passed to a method, is there a way to ... promotions), random errors will occur. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

gcc - Override a C function defined in a static library

I have a static library of C files, compiled with g++ on Cygwin. I wish to unit test one function that is ... t have this problem. Ideas please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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