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uclibc_git: Implement execvpe and refresh scheduler functions
Enable UCLIBC_HAS_UTMPX (From OE-Core rev: e586bfcbfda7e0aaa6323f9063d84f6663325bb1) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
160
meta/recipes-core/uclibc/uclibc-git/uclibc-execvpe.patch
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160
meta/recipes-core/uclibc/uclibc-git/uclibc-execvpe.patch
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@@ -0,0 +1,160 @@
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From d20556adadea03bff0bba051172caf0314a35471 Mon Sep 17 00:00:00 2001
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From: Henning Heinold <heinold@inf.fu-berlin.de>
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Date: Sat, 4 Jun 2011 21:23:15 +0200
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Subject: [PATCH 2/2] libc: add non standard execvpe function
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Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de>
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---
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include/unistd.h | 6 ++++++
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libc/unistd/exec.c | 38 +++++++++++++++++++++++++++++++++-----
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libc/unistd/execvpe.c | 7 +++++++
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3 files changed, 46 insertions(+), 5 deletions(-)
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create mode 100644 libc/unistd/execvpe.c
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diff --git a/include/unistd.h b/include/unistd.h
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index 9568790..070e4f2 100644
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--- a/include/unistd.h
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+++ b/include/unistd.h
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@@ -557,6 +557,12 @@ extern int execvp (__const char *__file, char *__const __argv[])
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__THROW __nonnull ((1));
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libc_hidden_proto(execvp)
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+/* Execute FILE, searching in the `PATH' environment variable if it contains
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+ no slashes, with arguments ARGV and environment from a pointer */
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+extern int execvpe (__const char *__file, char *__const __argv[], char *__const __envp[])
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+ __THROW __nonnull ((1));
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+libc_hidden_proto(execvpe)
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+
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/* Execute FILE, searching in the `PATH' environment variable if
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it contains no slashes, with all arguments after FILE until a
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NULL pointer and environment from `environ'. */
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diff --git a/libc/unistd/exec.c b/libc/unistd/exec.c
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index 7d24072..802a174 100644
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--- a/libc/unistd/exec.c
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+++ b/libc/unistd/exec.c
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@@ -32,6 +32,8 @@
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/**********************************************************************/
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#define EXEC_FUNC_COMMON 0
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#define EXEC_FUNC_EXECVP 1
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+#define EXEC_FUNC_EXECVPE 2
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+
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#if defined(__ARCH_USE_MMU__)
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/* We have an MMU, so use alloca() to grab space for buffers and arg lists. */
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@@ -58,6 +60,7 @@
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* execle(a) -> execve(-)
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* execv(-) -> execve(-)
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* execvp(a) -> execve(-)
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+ * execvpe(a) -> execve(-)
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*/
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# define EXEC_ALLOC_SIZE(VAR) /* nothing to do */
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@@ -219,15 +222,18 @@ libc_hidden_def(execlp)
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#endif
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/**********************************************************************/
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-#ifdef L_execvp
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+#if defined (L_execvp) || defined(L_execvpe)
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/* Use a default path that matches glibc behavior, since SUSv3 says
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* this is implementation-defined. The default is current working dir,
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* /bin, and then /usr/bin. */
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static const char default_path[] = ":/bin:/usr/bin";
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-
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+#if defined (L_execvp)
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int execvp(const char *path, char *const argv[])
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+#elif defined (L_execvpe)
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+int execvpe(const char *path, char *const argv[], char *const envp[])
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+#endif
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{
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char *buf = NULL;
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char *p;
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@@ -245,7 +251,11 @@ int execvp(const char *path, char *const argv[])
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}
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if (strchr(path, '/')) {
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+#if defined (L_execvp)
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execve(path, argv, __environ);
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+#elif defined (L_execvpe)
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+ execve(path, argv, envp);
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+#endif
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if (errno == ENOEXEC) {
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char **nargv;
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EXEC_ALLOC_SIZE(size2) /* Do NOT add a semicolon! */
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@@ -254,11 +264,19 @@ int execvp(const char *path, char *const argv[])
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/* Need the dimension - 1. We omit counting the trailing
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* NULL but we actually omit the first entry. */
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for (n=0 ; argv[n] ; n++) {}
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+#if defined (L_execvp)
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nargv = (char **) EXEC_ALLOC((n+2) * sizeof(char *), size2, EXEC_FUNC_EXECVP);
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+#elif defined (L_execvpe)
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+ nargv = (char **) EXEC_ALLOC((n+2) * sizeof(char *), size2, EXEC_FUNC_EXECVPE);
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+#endif
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nargv[0] = argv[0];
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nargv[1] = (char *)path;
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memcpy(nargv+2, argv+1, n*sizeof(char *));
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+#if defined (L_execvp)
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execve("/bin/sh", nargv, __environ);
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+#elif defined (L_execvpe)
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+ execve("/bin/sh", nargv, envp);
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+#endif
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EXEC_FREE(nargv, size2);
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}
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} else {
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@@ -277,8 +295,11 @@ int execvp(const char *path, char *const argv[])
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return -1;
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}
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len = (FILENAME_MAX - 1) - plen;
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-
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+#if defined (L_execvp)
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buf = EXEC_ALLOC(FILENAME_MAX, size, EXEC_FUNC_EXECVP);
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+#elif defined (L_execvpe)
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+ buf = EXEC_ALLOC(FILENAME_MAX, size, EXEC_FUNC_EXECVPE);
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+#endif
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{
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int seen_small = 0;
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s0 = buf + len;
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@@ -300,8 +321,11 @@ int execvp(const char *path, char *const argv[])
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s[plen-1] = '/';
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}
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+#if defined (L_execvp)
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execve(s, argv, __environ);
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-
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+#elif defined (L_execvpe)
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+ execve(s, argv, envp);
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+#endif
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seen_small = 1;
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if (errno == ENOEXEC) {
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@@ -325,7 +349,11 @@ int execvp(const char *path, char *const argv[])
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return -1;
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}
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+#if defined (L_execvp)
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libc_hidden_def(execvp)
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-
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+#elif defined (L_execvpe)
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+libc_hidden_def(execvpe)
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#endif
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+
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+#endif /* #if defined (L_execvp) || defined(L_execvpe) */
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/**********************************************************************/
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diff --git a/libc/unistd/execvpe.c b/libc/unistd/execvpe.c
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new file mode 100644
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index 0000000..5c1ce06
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--- /dev/null
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+++ b/libc/unistd/execvpe.c
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@@ -0,0 +1,7 @@
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+/* Copyright (C) 2011 Hennning Heinold <heinold@inf.fu-berlin.de>
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+ *
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+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
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+ */
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+
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+#define L_execvpe
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+#include "exec.c"
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--
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1.7.5.3
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