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[Bug 1001539] Single precision floating point math library
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: unassigned at bugs dot ecos dot sourceware dot org
- Date: Wed, 21 Mar 2012 18:36:05 +0000
- Subject: [Bug 1001539] Single precision floating point math library
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--- Comment #11 from Sergei Gavrikov <firstname.lastname@example.org> 2012-03-21 18:36:01 GMT ---
(In reply to comment #10)
> (In reply to comment #9)
> Library is not tied to any architecture, we took it from Newlib and
> merely adapted to eCos by studying the differences between "double"
> libs.. My standard testing is with Cortex-M3 settings -mcpu=cortex-m3
> -mthumb -O2 which is default even for Kinetis (until we switch to
> >Thus, I thought that I missed something in eCos configuration. Could
> >you provide your ecm-file?
> There isn't much for ecm file, only startup type.
> It would be good if you could try with some ARM target. FYI, example
> tests that fail on my platform are: asinf(x) |x| > 1, acosf(x) |x| >
> 1, logf(x) x < 0. Pass: tanf(), expf(), cosf(), etc...
Iljia, thanks for guidance. So, I got the same results for ARM7TDMI (LE)
target (default template, RAM startup, run in GDB, build with GCC 4.6.3)
ECOS_GLOBAL_CFLAGS = -Wall -Wpointer-arith -Wstrict-prototypes -Wundef
-Woverloaded-virtual -Wno-write-strings -mno-thumb-interwork -mcpu=arm7tdmi -g
-O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions
ECOS_GLOBAL_LDFLAGS = -mno-thumb-interwork -mcpu=arm7tdmi -Wl,--gc-sections
-Wl,-static -g -nostdlib
ECOS_COMMAND_PREFIX = arm-eabi-
PASS:<atan2f() is stable>
PASS:<atanf() is stable>
PASS:<ceilf() is stable>
PASS:<cosf() is stable>
PASS:<coshf() is stable>
PASS:<expf() is stable>
PASS:<fabsf() is stable>
PASS:<floorf() is stable>
PASS:<fmodf() is stable>
PASS:<ldexpf() is stable>
PASS:<powf() is stable>
PASS:<sinf() is stable>
PASS:<sinhf() is stable>
PASS:<sqrtf() is stable>
PASS:<tanf() is stable>
PASS:<tanhf() is stable>
FAIL:<acosf() failed tests> Line: 92, File: ... vectors/acosf.c
FAIL:<asinf() failed tests> Line: 92, File: ... vectors/asinf.c
FAIL:<frexpf() failed tests> Line: 92, File: ... vectors/frexpf.c
FAIL:<log10f() failed tests> Line: 92, File: ... vectors/log10f.c
FAIL:<logf() failed tests> Line: 92, File: ... vectors/logf.c
There were 42 warnings [-Wunused-function] in the build (otherwise, all
is clean). One fix would be to add a prototyping for doTestVec() and
doTestVecFloat() in tests/vector_support.h with GCC attribute unused
const Cyg_libm_test_double_vec_t * vectors,
and the same for doTestVecFloat(), then build is silent.
Thanks. Be continue.
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