diff options
Diffstat (limited to 'man3/getauxval.3')
| -rw-r--r-- | man3/getauxval.3 | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/man3/getauxval.3 b/man3/getauxval.3 index 8e7d5e4..c41cce0 100644 --- a/man3/getauxval.3 +++ b/man3/getauxval.3 @@ -5,7 +5,7 @@ .\" .\" See also https://lwn.net/Articles/519085/ .\" -.TH getauxval 3 2023-07-20 "Linux man-pages 6.05.01" +.TH getauxval 3 2023-10-31 "Linux man-pages 6.7" .SH NAME getauxval \- retrieve a value from the auxiliary vector .SH LIBRARY @@ -14,7 +14,7 @@ Standard C library .SH SYNOPSIS .nf .B #include <sys/auxv.h> -.PP +.P .BI "unsigned long getauxval(unsigned long " type ); .fi .SH DESCRIPTION @@ -24,7 +24,7 @@ function retrieves values from the auxiliary vector, a mechanism that the kernel's ELF binary loader uses to pass certain information to user space when a program is executed. -.PP +.P Each entry in the auxiliary vector consists of a pair of values: a type that identifies what this entry represents, and a value for that type. @@ -32,7 +32,7 @@ Given the argument .IR type , .BR getauxval () returns the corresponding value. -.PP +.P The value returned for each .I type is given in the following list. @@ -224,7 +224,6 @@ T{ .BR getauxval () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS GNU. .SH HISTORY @@ -238,19 +237,19 @@ that allows the kernel to communicate a certain set of standard information that the dynamic linker usually or always needs. In some cases, the same information could be obtained by system calls, but using the auxiliary vector is cheaper. -.PP +.P The auxiliary vector resides just above the argument list and environment in the process address space. The auxiliary vector supplied to a program can be viewed by setting the .B LD_SHOW_AUXV environment variable when running a program: -.PP +.P .in +4n .EX $ LD_SHOW_AUXV=1 sleep 1 .EE .in -.PP +.P The auxiliary vector of any process can (subject to file permissions) be obtained via .IR /proc/ pid /auxv ; |