AVR C Runtime Library - Bugs: bug #3485, Using float arithmetic without...
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bug #3485: Using float arithmetic without linking with -lm result in incorrect code
Submitter: | Invalid User ID <#18784> | ||
Submitted: | Tue 06 May 2003 02:12:24 PM UTC | ||
Category: | Library | Severity: | 2 - Minor |
Priority: | 2 | Item Group: | libm code |
Status: | None | Assigned to: | arcanum |
Percent Complete: | 50% | Open/Closed: | Open |
Release: | 1.6.2 | Fixed Release: | None |
Jump to the original submission
Sun 02 Sep 2012 07:45:32 PM UTC, comment #6: |
Georg-Johann Lay <gjlayde> |
Thu 20 Mar 2008 05:46:28 AM UTC, comment #5: Well, let's keep this one open until all of our libgcc routines
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Joerg Wunsch <joerg_wunsch> |
Wed 01 Nov 2006 09:02:30 AM UTC, comment #4: Bug #18169 has been marked as a duplicate. |
Joerg Wunsch <joerg_wunsch> |
Wed 22 Dec 2004 10:35:07 PM UTC, comment #3: Oops, closing this item was not intented. |
Joerg Wunsch <joerg_wunsch> |
Wed 22 Dec 2004 10:11:09 PM UTC, comment #2: We ought to merge libc and libm completely. There are
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Joerg Wunsch <joerg_wunsch> |
Wed 07 May 2003 03:46:31 PM UTC, comment #1: Reduced severity as it's a documentation change. |
Eric Weddington <arcanum> |
Tue 06 May 2003 02:12:24 PM UTC, original submission:
In the normal C environment, it's possibile to compile correct code using floating point arithmetic without linking math library. Math library is required only if functions like sin() are used. I try to do the same with avr-libc, but the math code included (__floatsisf for instance) contains jmp 0x0 wich obviusly isn't what I wanted. Linking with -lm is a solution, but it must be stated that every use of FPA requires -lm. |
Invalid User ID <#18784> |
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
Follow 21 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2008-06-18 | arcanum | Status | Fixed | None | |
Percent Complete | 100% | 50% | |||
2008-06-18 | arcanum | Release | None | 1.6.2 | |
2008-03-20 | joerg_wunsch | Category | Documentation | Library | |
Item Group | Documentation | libm code | |||
Open/Closed | Closed | Open | |||
Fixed Release | 1.7.1 | None | |||
2008-03-19 | arcanum | Status | None | Fixed | |
Percent Complete | 0% | 100% | |||
Assigned to | None | arcanum | |||
Open/Closed | Open | Closed | |||
Fixed Release | None | 1.7.1 | |||
2008-03-19 | arcanum | Item Group | libm code | Documentation | |
2007-01-08 | joerg_wunsch | Item Group | None | libm code | |
2006-11-01 | joerg_wunsch | Carbon-Copy | - | Added -email is unavailable- | |
2004-12-22 | joerg_wunsch | Open/Closed | Closed | Open | |
2004-12-22 | joerg_wunsch | Open/Closed | Open | Closed | |
2004-12-22 | arcanum | Priority | 3 - Low | 2 | |
2004-11-01 | arcanum | Attached File | #906 | Removed | |
2003-12-24 | None | Attached File | - | Added TASK MANAGER.EXE, #906 | |
2003-05-07 | arcanum | Severity | 3 - Normal | None |
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Corresponding source code
See also the discussion in avr-gcc: Add --with-avrlibc configure option for AVR-Libc