getauxval.3: Clarify that AT_BASE_PLATFORM and AT_EXECFN return pointers to strings

See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942207

Reported-by: Witold Baryluk <witold.baryluk@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man3/getauxval.3 b/man3/getauxval.3
index f7b23085aba69c9fb85f50b6e05fc73840b0a5bd..456371c6ad79275bba42af8313957b0c9e49b5b7 100644 (file)
--- a/man3/getauxval.3
+++ b/man3/getauxval.3
@@ -60,7 +60,7 @@ values are present on all architectures.
 The base address of the program interpreter (usually, the dynamic linker).
 .TP
 .BR AT_BASE_PLATFORM
-A string identifying the real platform; may differ from
+A pointer to a string identifying the real platform; may differ from
 .BR AT_PLATFORM
 (PowerPC only).
 .TP
@@ -87,7 +87,7 @@ The effective user ID of the thread.
 File descriptor of program.
 .TP
 .BR AT_EXECFN
-Pathname used to execute program.
+A pointer to a string containing the pathname used to execute the program.
 .TP
 .BR AT_FLAGS
 Flags (unused).