Error Hard-float Conflicts With Specified Fpu
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Sign in Pricing Blog Support Search GitHub This repository Watch 224 Star 1,480 Fork 866 FreeRDP/FreeRDP Code Issues 665 Pull requests 28 Projects 0 msoft-float Wiki Pulse Graphs New issue Building on ARM Hard Float #980 Closed mfloat-abi=hard engibeer opened this Issue Feb 18, 2013 · 11 comments Projects None yet Labels None yet
Gcc Arm Compiler
Milestone No milestone Assignees bmiklautz 6 participants engibeer commented Feb 18, 2013 Does the development version compile on an ARM hard float system? I see freerdp-1.0.1 in the debian
Gcc Arm Eabi
armhf repos but I can't get master to build on armhf. Error messages are of the form: (system library) uses VFP register arguments but (freerdp library) does not. I had some success with adding -mfloat-abi=softfp but this requires all the system libs to be softfp. FreeRDP member awakecoding commented Feb 18, 2013 @engibeer change all -mfloat-abi=softfp to -mfloat-abi=hard, it worked gcc arm options for me. we need a cleaner solution. tonyhook commented Feb 18, 2013 It seems about how your toolchain is maked? I DISABLED NEON, on armv7 platform, and pass the compilation and linking. bmiklautz was assigned Feb 19, 2013 FreeRDP member bmiklautz commented Feb 19, 2013 @tonyhook did you try with git master or only with 1.0.1? tonyhook commented Feb 19, 2013 @bmiklautz I tried only master. FreeRDP member bmiklautz commented Feb 19, 2013 @tonyhook did you set any march while compiling? FreeRDP member awakecoding commented Feb 19, 2013 To get it to build I installed gcc-multilib, and manually changed -mfloat-abi=softfp to -mfloat-abi=hard in libfreerdp/codec/CMakeLists.txt and libfreerdp/primitives/CMakeLists.txt bmiklautz referenced this issue Feb 20, 2013 Merged build/arm: added build option to specify fp ABI #987 bmiklautz added a commit that closed this issue Feb 20, 2013 bmiklautz … cm
‘aapcs’, ‘aapcs-linux’ and ‘iwmmxt’. -mapcs-frameGenerate a stack frame that is compliant with the ARM Procedure Call Standard for all functions, even if this is
Error: Target Cpu Does Not Support Arm Mode
not strictly necessary for correct execution of the code. Specifying mfloat-abi=softfp -fomit-frame-pointer with this option causes the stack frames not to be generated for leaf functions. The gcc -d option define default is -mno-apcs-frame. This option is deprecated. -mapcsThis is a synonym for -mapcs-frame and is deprecated. -mthumb-interworkGenerate code that supports calling between the ARM and https://github.com/FreeRDP/FreeRDP/issues/980 Thumb instruction sets. Without this option, on pre-v5 architectures, the two instruction sets cannot be reliably used inside one program. The default is -mno-thumb-interwork, since slightly larger code is generated when -mthumb-interwork is specified. In AAPCS configurations this option is meaningless. -mno-sched-prologPrevent the reordering of instructions in the function prologue, or the https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html merging of those instruction with the instructions in the function's body. This means that all functions start with a recognizable set of instructions (or in fact one of a choice from a small set of different function prologues), and this information can be used to locate the start of functions inside an executable piece of code. The default is -msched-prolog. -mfloat-abi=nameSpecifies which floating-point ABI to use. Permissible values are: ‘soft’, ‘softfp’ and ‘hard’. Specifying ‘soft’ causes GCC to generate output containing library calls for floating-point operations. ‘softfp’ allows the generation of code using hardware floating-point instructions, but still uses the soft-float calling conventions. ‘hard’ allows generation of floating-point instructions and uses FPU-specific calling conventions. The default depends on the specific target configuration. Note that the hard-float and soft-float ABIs are not link-compatible; you must compile your entire program with the same ABI, and link with a compatible set of libraries. -mlittle-endianGenerate code for a
by David Goldberg, published in the March, 1991 issue of Computing Surveys. Copyright 1991, Association for Computing Machinery, Inc., reprinted by https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html permission. Abstract Floating-point arithmetic is considered an esoteric subject by many http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20140929/115872.html people. This is rather surprising because floating-point is ubiquitous in computer systems. Almost every language has a floating-point datatype; computers from PCs to supercomputers have floating-point accelerators; most compilers will be called upon to compile floating-point algorithms from time to time; and virtually gcc arm every operating system must respond to floating-point exceptions such as overflow. This paper presents a tutorial on those aspects of floating-point that have a direct impact on designers of computer systems. It begins with background on floating-point representation and rounding error, continues with a discussion of the IEEE floating-point standard, and concludes with numerous error hard-float conflicts examples of how computer builders can better support floating-point. Categories and Subject Descriptors: (Primary) C.0 [Computer Systems Organization]: General -- instruction set design; D.3.4 [Programming Languages]: Processors -- compilers, optimization; G.1.0 [Numerical Analysis]: General -- computer arithmetic, error analysis, numerical algorithms (Secondary) D.2.1 [Software Engineering]: Requirements/Specifications -- languages; D.3.4 Programming Languages]: Formal Definitions and Theory -- semantics; D.4.1 Operating Systems]: Process Management -- synchronization. General Terms: Algorithms, Design, Languages Additional Key Words and Phrases: Denormalized number, exception, floating-point, floating-point standard, gradual underflow, guard digit, NaN, overflow, relative error, rounding error, rounding mode, ulp, underflow. Introduction Builders of computer systems often need information about floating-point arithmetic. There are, however, remarkably few sources of detailed information about it. One of the few books on the subject, Floating-Point Computation by Pat Sterbenz, is long out of print. This paper is a tutorial on those aspects of floating-point arithmetic (floating-point hereafter) that have a direct connection to systems building. It consists of three loose
and plugins Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Author: asiri Date: Fri Oct 3 04:11:41 2014 New Revision: 218970 URL: http://llvm.org/viewvc/llvm-project?rev=218970&view=rev Log: Revert changes in r218863, r218864 Summary: The changes introduced in the above two commits are giving a rough time to one of the build bots. Reverting the changes for the moment so that the bot can go green again. Change-Id: Id19f6cb2a8bc292631fac2262268927563d820c2 Modified: cfe/trunk/include/clang/Basic/DiagnosticDriverKinds.td cfe/trunk/lib/Driver/Tools.cpp cfe/trunk/lib/Driver/Tools.h cfe/trunk/test/Driver/arm-mfpu.c cfe/trunk/test/Driver/linux-as.c Modified: cfe/trunk/include/clang/Basic/DiagnosticDriverKinds.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticDriverKinds.td?rev=218970&r1=218969&r2=218970&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/DiagnosticDriverKinds.td (original) +++ cfe/trunk/include/clang/Basic/DiagnosticDriverKinds.td Fri Oct 3 04:11:41 2014 @@ -146,12 +146,6 @@ def warn_drv_clang_unsupported : Warning "the clang compiler does not support '%0'">; def warn_drv_assuming_mfloat_abi_is : Warning< "unknown platform, assuming -mfloat-abi=%0">; -def warn_drv_implied_soft_float_assumed : Warning< - "%0 implies soft-float, ignoring conflicting option '%1'">, - InGroup