devel September 2018

devel@uclibc-ng.org

3 participants
5 discussions

uclibc-ng-test and math complex functions
by Laurent Thévenoux 20 Dec '18

20 Dec '18

Hi, I'm trying to build uclibc-ng-test, but I can't link with complex trigo functions (such as cacos, casin, catan, etc.). They are required for the following test targets: test-double, test-double-finite, test-float, test-float-finite, test-idouble, and test-ifloat. They are declared in uclibc-ng/sysdeps/linux/common/bits/cmathcalls.h, but I can't find their definitions. Does uclibc-ng define them? Thanks, -- Laurent Thévenoux lthevenoux(a)kalray.eu Kalray S.A. 180 Avenue de l'Europe 38330 Montbonnot FRANCE

5 7

recvmmsg/sendmmsg not in kernel < Linux 2.6.33
by Lance Fredrickson 27 Sep '18

27 Sep '18

Hi, I'm having an issue where it seems recvmmsg/sendmmsg is being included into the c library regardless of kernel version. I work with kernel versions < 2.6.33 before this feature was included. When compiling applications, autoconf is then mistakenly told from the c-library that recvmmsg/sendmmsg is supported by the kernel, resulting in runtime errors. I use buildroot to compile my toolchains. Looking through uclibc-ng git, it looks like this feature was added with this commit. https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=6e15fafa200666… thanks, Lance Fredrickson

1 0

recvmmsg/sendmmsg not in kernel < Linux 2.6.33
by Lance Fredrickson 24 Sep '18

24 Sep '18

1 0

[PATCH] bugfix renameat2 wrong implement.
by Guo Ren 13 Sep '18

13 Sep '18

Signed-off-by: Guo Ren <ren_guo(a)c-sky.com> --- libc/sysdeps/linux/common/rename.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libc/sysdeps/linux/common/rename.c b/libc/sysdeps/linux/common/rename.c index 30a4ed7..613ae4e 100644 --- a/libc/sysdeps/linux/common/rename.c +++ b/libc/sysdeps/linux/common/rename.c @@ -20,7 +20,9 @@ int rename(const char *oldpath, const char *newpath) # include <fcntl.h> int rename(const char *oldpath, const char *newpath) { - _syscall2(int, renameat2, const char *, oldpath, const char *, newpath) + _syscall5(int, renameat2, int, olddfd, const char *, oldpath, + int, newdfd, const char *, newpath, int, flags) + return renameat2(AT_FDCWD, oldpath, AT_FDCWD, newpath, 0); } #else _syscall2(int, rename, const char *, oldpath, const char *, newpath) -- 2.7.4

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[PATCH] wordexp: Fix the usage of the internal _itoa function
by Segev Finer 08 Sep '18

08 Sep '18

The original from glibc received the end of the buffer and worked backwards. Ours needs the beginning of the buffer. Signed-off-by: Segev Finer <segev208(a)gmail.com> --- libc/misc/wordexp/wordexp.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/libc/misc/wordexp/wordexp.c b/libc/misc/wordexp/wordexp.c index fb635fe91..285e81e87 100644 --- a/libc/misc/wordexp/wordexp.c +++ b/libc/misc/wordexp/wordexp.c @@ -491,10 +491,10 @@ parse_squote(char **word, size_t * word_length, size_t * max_length, #ifdef __WORDEXP_FULL static int eval_expr(char *expr, long int *result); -static char *_itoa(unsigned long long int value, char *buflim) +static char *_itoa(unsigned long long int value, char *buf) { - sprintf(buflim, "%llu", value); - return buflim; + sprintf(buf, "%llu", value); + return buf; } /* Functions to evaluate an arithmetic expression */ @@ -692,7 +692,7 @@ parse_arith(char **word, size_t * word_length, size_t * max_length, result[20] = '\0'; *word = w_addstr(*word, word_length, max_length, - _itoa(convertme, &result[20])); + _itoa(convertme, result)); free(expr); return *word ? 0 : WRDE_NOSPACE; } @@ -717,7 +717,7 @@ parse_arith(char **word, size_t * word_length, size_t * max_length, result[20] = '\0'; *word = w_addstr(*word, word_length, max_length, - _itoa(numresult, &result[20])); + _itoa(numresult, result)); free(expr); return *word ? 0 : WRDE_NOSPACE; } @@ -1313,7 +1313,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length, if (seen_hash) { /* $# expands to the number of positional parameters */ buffer[20] = '\0'; - value = _itoa(__libc_argc - 1, &buffer[20]); + value = _itoa(__libc_argc - 1, buffer); seen_hash = 0; } else { /* Just $ on its own */ @@ -1338,13 +1338,13 @@ parse_param(char **word, size_t * word_length, size_t * max_length, /* Is it `$$'? */ if (*env == '$') { buffer[20] = '\0'; - value = _itoa(getpid(), &buffer[20]); + value = _itoa(getpid(), buffer); } /* Is it `${#*}' or `${#@}'? */ else if ((*env == '*' || *env == '@') && seen_hash) { buffer[20] = '\0'; value = _itoa(__libc_argc > 0 ? __libc_argc - 1 : 0, - &buffer[20]); + buffer); *word = w_addstr(*word, word_length, max_length, value); free(env); free(pattern); @@ -1770,7 +1770,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length, param_length[20] = '\0'; *word = w_addstr(*word, word_length, max_length, _itoa(value ? strlen(value) : 0, - &param_length[20])); + param_length)); if (free_value) { assert(value != NULL); free(value); -- 2.18.0

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devel September 2018