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Re: Fix memleak in getdelim.m4
From: |
Bruno Haible |
Subject: |
Re: Fix memleak in getdelim.m4 |
Date: |
Sat, 23 May 2020 22:47:12 +0200 |
User-agent: |
KMail/5.1.3 (Linux/4.4.0-177-generic; KDE/5.18.0; x86_64; ; ) |
Tim Rühsen wrote:
> - clang-10 with unset CFLAGS (*.clang-10)
>
> And the same set with -fsanitize... (*.sanitize).
The other differences between the configure results without and with sanitizers
can be explained by the fact that these -fsanitize options have the effect that
the resulting executables are linked with
- libpthread,
- librt
- libm
- libdl
by default.
Consequences of linking with libpthread:
-ac_cv_func_pthread_sigmask=${ac_cv_func_pthread_sigmask=no}
+ac_cv_func_pthread_sigmask=${ac_cv_func_pthread_sigmask=yes}
-ac_cv_func_thrd_create=${ac_cv_func_thrd_create=no}
+ac_cv_func_thrd_create=${ac_cv_func_thrd_create=yes}
-ac_cv_lib_stdthreads_thrd_create=${ac_cv_lib_stdthreads_thrd_create=no}
+ac_cv_lib_pthread_pthread_kill=${ac_cv_lib_pthread_pthread_kill=yes}
-gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=${gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=yes}
+gl_cv_func_pthread_sigmask_in_libc_works=${gl_cv_func_pthread_sigmask_in_libc_works=yes}
Consequences of linking with librt:
-ac_cv_search_timer_settime=${ac_cv_search_timer_settime=-lrt}
+ac_cv_search_timer_settime=${ac_cv_search_timer_settime='none required'}
Consequences of linking with libm:
-gl_cv_func_acosl_in_libm=${gl_cv_func_acosl_in_libm=yes}
-gl_cv_func_acosl_no_libm=${gl_cv_func_acosl_no_libm=no}
-gl_cv_func_asinl_in_libm=${gl_cv_func_asinl_in_libm=yes}
-gl_cv_func_asinl_no_libm=${gl_cv_func_asinl_no_libm=no}
-gl_cv_func_atanl_in_libm=${gl_cv_func_atanl_in_libm=yes}
-gl_cv_func_atanl_no_libm=${gl_cv_func_atanl_no_libm=no}
+gl_cv_func_acosl_no_libm=${gl_cv_func_acosl_no_libm=yes}
+gl_cv_func_asinl_no_libm=${gl_cv_func_asinl_no_libm=yes}
+gl_cv_func_atanl_no_libm=${gl_cv_func_atanl_no_libm=yes}
-gl_cv_func_ceil_libm=${gl_cv_func_ceil_libm=-lm}
+gl_cv_func_ceil_libm=${gl_cv_func_ceil_libm=}
-gl_cv_func_ceilf_libm=${gl_cv_func_ceilf_libm=-lm}
+gl_cv_func_ceilf_libm=${gl_cv_func_ceilf_libm=}
-gl_cv_func_ceill_libm=${gl_cv_func_ceill_libm=-lm}
+gl_cv_func_ceill_libm=${gl_cv_func_ceill_libm=}
-gl_cv_func_cosl_in_libm=${gl_cv_func_cosl_in_libm=yes}
-gl_cv_func_cosl_no_libm=${gl_cv_func_cosl_no_libm=no}
+gl_cv_func_cosl_no_libm=${gl_cv_func_cosl_no_libm=yes}
-gl_cv_func_exp2_in_libm=${gl_cv_func_exp2_in_libm=yes}
-gl_cv_func_exp2_no_libm=${gl_cv_func_exp2_no_libm=no}
+gl_cv_func_exp2_no_libm=${gl_cv_func_exp2_no_libm=yes}
-gl_cv_func_expl_in_libm=${gl_cv_func_expl_in_libm=yes}
-gl_cv_func_expl_no_libm=${gl_cv_func_expl_no_libm=no}
+gl_cv_func_expl_no_libm=${gl_cv_func_expl_no_libm=yes}
-gl_cv_func_expm1_in_libm=${gl_cv_func_expm1_in_libm=yes}
-gl_cv_func_expm1_no_libm=${gl_cv_func_expm1_no_libm=no}
+gl_cv_func_expm1_no_libm=${gl_cv_func_expm1_no_libm=yes}
-gl_cv_func_expm1l_in_libm=${gl_cv_func_expm1l_in_libm=yes}
-gl_cv_func_expm1l_no_libm=${gl_cv_func_expm1l_no_libm=no}
+gl_cv_func_expm1l_no_libm=${gl_cv_func_expm1l_no_libm=yes}
-gl_cv_func_fabs_in_libm=${gl_cv_func_fabs_in_libm=yes}
-gl_cv_func_fabs_no_libm=${gl_cv_func_fabs_no_libm=no}
-gl_cv_func_fabsf_in_libm=${gl_cv_func_fabsf_in_libm=yes}
-gl_cv_func_fabsf_no_libm=${gl_cv_func_fabsf_no_libm=no}
-gl_cv_func_fabsl_in_libm=${gl_cv_func_fabsl_in_libm=yes}
-gl_cv_func_fabsl_no_libm=${gl_cv_func_fabsl_no_libm=no}
+gl_cv_func_fabs_no_libm=${gl_cv_func_fabs_no_libm=yes}
+gl_cv_func_fabsf_no_libm=${gl_cv_func_fabsf_no_libm=yes}
+gl_cv_func_fabsl_no_libm=${gl_cv_func_fabsl_no_libm=yes}
-gl_cv_func_fegetround_in_libm=${gl_cv_func_fegetround_in_libm=yes}
-gl_cv_func_fegetround_no_libm=${gl_cv_func_fegetround_no_libm=no}
+gl_cv_func_fegetround_no_libm=${gl_cv_func_fegetround_no_libm=yes}
-gl_cv_func_floor_libm=${gl_cv_func_floor_libm=-lm}
+gl_cv_func_floor_libm=${gl_cv_func_floor_libm=}
-gl_cv_func_floorf_libm=${gl_cv_func_floorf_libm=-lm}
-gl_cv_func_floorl_libm=${gl_cv_func_floorl_libm=-lm}
-gl_cv_func_fma_in_libm=${gl_cv_func_fma_in_libm=yes}
-gl_cv_func_fma_no_libm=${gl_cv_func_fma_no_libm=no}
+gl_cv_func_floorf_libm=${gl_cv_func_floorf_libm=}
+gl_cv_func_floorl_libm=${gl_cv_func_floorl_libm=}
+gl_cv_func_fma_no_libm=${gl_cv_func_fma_no_libm=yes}
-gl_cv_func_fmaf_in_libm=${gl_cv_func_fmaf_in_libm=yes}
-gl_cv_func_fmaf_no_libm=${gl_cv_func_fmaf_no_libm=no}
+gl_cv_func_fmaf_no_libm=${gl_cv_func_fmaf_no_libm=yes}
-gl_cv_func_fmal_in_libm=${gl_cv_func_fmal_in_libm=yes}
-gl_cv_func_fmal_no_libm=${gl_cv_func_fmal_no_libm=no}
+gl_cv_func_fmal_no_libm=${gl_cv_func_fmal_no_libm=yes}
-gl_cv_func_ilogb_in_libm=${gl_cv_func_ilogb_in_libm=yes}
-gl_cv_func_ilogb_no_libm=${gl_cv_func_ilogb_no_libm=no}
+gl_cv_func_ilogb_no_libm=${gl_cv_func_ilogb_no_libm=yes}
-gl_cv_func_ilogbf_in_libm=${gl_cv_func_ilogbf_in_libm=yes}
-gl_cv_func_ilogbf_no_libm=${gl_cv_func_ilogbf_no_libm=no}
+gl_cv_func_ilogbf_no_libm=${gl_cv_func_ilogbf_no_libm=yes}
-gl_cv_func_logbf_in_libm=${gl_cv_func_logbf_in_libm=yes}
-gl_cv_func_logbf_no_libm=${gl_cv_func_logbf_no_libm=no}
+gl_cv_func_logbf_no_libm=${gl_cv_func_logbf_no_libm=yes}
-gl_cv_func_logbl_in_libm=${gl_cv_func_logbl_in_libm=yes}
-gl_cv_func_logbl_no_libm=${gl_cv_func_logbl_no_libm=no}
+gl_cv_func_logbl_no_libm=${gl_cv_func_logbl_no_libm=yes}
-gl_cv_func_logl_in_libm=${gl_cv_func_logl_in_libm=yes}
-gl_cv_func_logl_no_libm=${gl_cv_func_logl_no_libm=no}
+gl_cv_func_logl_no_libm=${gl_cv_func_logl_no_libm=yes}
-gl_cv_func_pow_in_libm=${gl_cv_func_pow_in_libm=yes}
-gl_cv_func_pow_no_libm=${gl_cv_func_pow_no_libm=no}
+gl_cv_func_pow_no_libm=${gl_cv_func_pow_no_libm=yes}
-gl_cv_func_printf_enomem=${gl_cv_func_printf_enomem=yes}
+gl_cv_func_printf_enomem=${gl_cv_func_printf_enomem=no}
-gl_cv_func_sinl_in_libm=${gl_cv_func_sinl_in_libm=yes}
-gl_cv_func_sinl_no_libm=${gl_cv_func_sinl_no_libm=no}
+gl_cv_func_sinl_no_libm=${gl_cv_func_sinl_no_libm=yes}
-gl_cv_func_sqrtl_in_libm=${gl_cv_func_sqrtl_in_libm=yes}
-gl_cv_func_sqrtl_no_libm=${gl_cv_func_sqrtl_no_libm=no}
+gl_cv_func_sqrtl_no_libm=${gl_cv_func_sqrtl_no_libm=yes}
-gl_cv_func_tanl_in_libm=${gl_cv_func_tanl_in_libm=yes}
-gl_cv_func_tanl_no_libm=${gl_cv_func_tanl_no_libm=no}
+gl_cv_func_tanl_no_libm=${gl_cv_func_tanl_no_libm=yes}
Consequences of a failed gl_PRINTF_ENOMEM test:
-gl_cv_func_dprintf_posix=${gl_cv_func_dprintf_posix=yes}
+gl_cv_func_dprintf_posix=${gl_cv_func_dprintf_posix=no}
-gl_cv_func_fprintf_posix=${gl_cv_func_fprintf_posix=yes}
+gl_cv_func_fprintf_posix=${gl_cv_func_fprintf_posix=no}
-gl_cv_func_obstack_printf_posix=${gl_cv_func_obstack_printf_posix=yes}
+gl_cv_func_obstack_printf_posix=${gl_cv_func_obstack_printf_posix=no}
-gl_cv_func_snprintf_posix=${gl_cv_func_snprintf_posix=yes}
+gl_cv_func_snprintf_posix=${gl_cv_func_snprintf_posix=no}
-gl_cv_func_sprintf_posix=${gl_cv_func_sprintf_posix=yes}
+gl_cv_func_sprintf_posix=${gl_cv_func_sprintf_posix=no}
-gl_cv_func_vasprintf_posix=${gl_cv_func_vasprintf_posix=yes}
-gl_cv_func_vdprintf_posix=${gl_cv_func_vdprintf_posix=yes}
-gl_cv_func_vfprintf_posix=${gl_cv_func_vfprintf_posix=yes}
-gl_cv_func_vsnprintf_posix=${gl_cv_func_vsnprintf_posix=yes}
+gl_cv_func_vasprintf_posix=${gl_cv_func_vasprintf_posix=no}
+gl_cv_func_vdprintf_posix=${gl_cv_func_vdprintf_posix=no}
+gl_cv_func_vfprintf_posix=${gl_cv_func_vfprintf_posix=no}
+gl_cv_func_vsnprintf_posix=${gl_cv_func_vsnprintf_posix=no}
-gl_cv_func_vsprintf_posix=${gl_cv_func_vsprintf_posix=yes}
+gl_cv_func_vsprintf_posix=${gl_cv_func_vsprintf_posix=no}
So, all in all, it's more harmless that it looked at first sight. But
it showed 9 bugs in gnulib, which are now all fixed.
Bruno
- Re: Fix memleak in getdelim.m4, (continued)
- Re: Fix memleak in getdelim.m4, Bruno Haible, 2020/05/22
- Re: Fix memleak in getdelim.m4, Tim Rühsen, 2020/05/22
- Fix exponentl.m4 test, Bruno Haible, 2020/05/23
- Fix calloc.m4 test, Bruno Haible, 2020/05/23
- Re: Fix calloc.m4 test, Paul Eggert, 2020/05/23
- Re: Fix calloc.m4 test, Bruno Haible, 2020/05/23
- Re: Fix calloc.m4 test, Paul Eggert, 2020/05/23
- Re: Fix calloc.m4 test, Bruno Haible, 2020/05/24
- Fix invalid use of __builtin_isnanf and __builtin_isnanl, Bruno Haible, 2020/05/23
- Fix calloc-gnu configure results, Bruno Haible, 2020/05/23
- Re: Fix memleak in getdelim.m4,
Bruno Haible <=
- Re: Fix memleak in getdelim.m4, Tim Rühsen, 2020/05/24
- SA_RESETHAND, Bruno Haible, 2020/05/21
- Re: SA_RESETHAND, Paul Eggert, 2020/05/21
- Re: SA_RESETHAND, Bruno Haible, 2020/05/21
- Re: Fix sanitizer error in fchownat.m4, Bruno Haible, 2020/05/21
- Fix memleak in glob.m4, Bruno Haible, 2020/05/21
- Fix memleak in regex.m4, Bruno Haible, 2020/05/21
- Re: Fix memleak in getdelim.m4, Bruno Haible, 2020/05/21
- Re: Fix memleak in getdelim.m4, Paul Eggert, 2020/05/21
- Re: Fix memleak in getdelim.m4, Bruno Haible, 2020/05/21