From de8aadd52c97f9a04d5e8709b16dc5baf9292a09 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Mon, 13 Apr 2015 21:16:56 +0200 Subject: Set errno for log1p on pole/domain error. According to bug 6792, errno is not set to ERANGE/EDOM by calling log1p/log1pf/log1pl with x = -1 or x < -1. This patch adds a wrapper which sets errno in those cases and returns the value of the existing __log1p function. The log1p is now an alias to the wrapper function instead of __log1p. The files in sysdeps are reflecting these changes. The ia64 implementation sets errno by itself, thus the wrapper-file is empty. The libm-test is adjusted for log1p-tests to check errno. [BZ #6792] * math/w_log1p.c: New file. * math/w_log1pf.c: Likewise. * math/w_log1pl.c: Likewise. * math/Makefile (libm-calls): Add w_log1p. * math/s_log1pl.c (log1pl): Remove weak_alias. * sysdeps/i386/fpu/s_log1p.S (log1p): Likewise. * sysdeps/i386/fpu/s_log1pf.S (log1pf): Likewise. * sysdeps/i386/fpu/s_log1pl.S (log1pl): Likewise. * sysdeps/x86_64/fpu/s_log1pl.S (log1pl): Likewise. * sysdeps/ieee754/dbl-64/s_log1p.c (log1p): Likewise. [NO_LONG_DOUBLE] (log1pl): Likewise. * sysdeps/ieee754/flt-32/s_log1pf.c (log1pf): Likewise. * sysdeps/ieee754/ldbl-128/s_log1pl.c (log1pl): Likewise. * sysdeps/ieee754/ldbl-64-128/s_log1pl.c (log1p): Remove long_double_symbol. * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (log1pl): Likewise. * sysdeps/ieee754/ldbl-64-128/w_log1pl.c: New file. * sysdeps/ieee754/ldbl-128ibm/w_log1pl.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_log1p.c: Define empty weak_alias to remove weak_alias for corresponding log1p function. * sysdeps/m68k/m680x0/fpu/s_log1pf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_log1pl.c: Likewise. * sysdeps/ia64/fpu/w_log1p.c: New file. * sysdeps/ia64/fpu/w_log1pf.c: Likewise. * sysdeps/ia64/fpu/w_log1pl.c: Likewise. * math/libm-test.inc (log1p_test_data): Add errno expectations. --- math/libm-test.inc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'math/libm-test.inc') diff --git a/math/libm-test.inc b/math/libm-test.inc index 7acd29bc13..5d7f5a25c8 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -7798,10 +7798,10 @@ log10_test (void) static const struct test_f_f_data log1p_test_data[] = { - TEST_f_f (log1p, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION), - TEST_f_f (log1p, -2, qnan_value, INVALID_EXCEPTION), - TEST_f_f (log1p, -max_value, qnan_value, INVALID_EXCEPTION), - TEST_f_f (log1p, minus_infty, qnan_value, INVALID_EXCEPTION), + TEST_f_f (log1p, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE), + TEST_f_f (log1p, -2, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), + TEST_f_f (log1p, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), + TEST_f_f (log1p, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), TEST_f_f (log1p, plus_infty, plus_infty), TEST_f_f (log1p, qnan_value, qnan_value, NO_INEXACT_EXCEPTION), -- cgit 1.4.1