diff options
Diffstat (limited to 'lib/libc/sys/execve.2')
| -rw-r--r-- | lib/libc/sys/execve.2 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/libc/sys/execve.2 b/lib/libc/sys/execve.2 index 9b0f22c6fac5..427f9ab8dbe0 100644 --- a/lib/libc/sys/execve.2 +++ b/lib/libc/sys/execve.2 @@ -58,7 +58,8 @@ This file is either an executable object file, or a file of data for an interpreter. An executable object file consists of an identifying header, followed by pages of data representing the initial program (text) -and initialized data pages. Additional pages may be specified +and initialized data pages. +Additional pages may be specified by the header to be initialized with zero data; see .Xr elf 5 and @@ -87,7 +88,8 @@ and the name of the originally file becomes the second argument; otherwise, the name of the originally .Sy execve Ap d -file becomes the first argument. The original arguments are shifted over to +file becomes the first argument. +The original arguments are shifted over to become the subsequent arguments. The zeroth argument is set to the specified .Em interpreter . @@ -97,7 +99,8 @@ The argument is a pointer to a null-terminated array of character pointers to null-terminated character strings. These strings construct the argument list to be made available to the new -process. At least one argument must be present in +process. +At least one argument must be present in the array; by custom, the first element should be the name of the executed program (for example, the last component of .Fa path ) . @@ -159,7 +162,8 @@ These values may be used in changing the effective IDs later (see .Pp The set-ID bits are not honored if the respective file system has the .Cm nosuid -option enabled or if the new process file is an interpreter file. Syscall +option enabled or if the new process file is an interpreter file. +Syscall tracing is disabled if effective IDs are changed. .Pp The new process also inherits the following attributes from |