diff options
Diffstat (limited to 'manual/dynlink.texi')
| -rw-r--r-- | manual/dynlink.texi | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/manual/dynlink.texi b/manual/dynlink.texi index bc3b779b69..6a4a50d3f0 100644 --- a/manual/dynlink.texi +++ b/manual/dynlink.texi @@ -30,9 +30,9 @@ location @var{arg}, based on @var{request}. The @var{handle} argument must be a pointer returned by @code{dlopen} or @code{dlmopen}; it must not have been closed by @code{dlclose}. -On success, @code{dlinfo} returns 0. If there is an error, the function -returns @math{-1}, and @code{dlerror} can be used to obtain a -corresponding error message. +On success, @code{dlinfo} returns 0 for most request types; exceptions +are noted below. If there is an error, the function returns @math{-1}, +and @code{dlerror} can be used to obtain a corresponding error message. The following operations are defined for use with @var{request}: @@ -84,6 +84,15 @@ This request writes the TLS module ID for the shared object @var{handle} to @code{*@var{arg}}. The argument @var{arg} must be the address of an object of type @code{size_t}. The module ID is zero if the object does not have an associated TLS block. + +@item RTLD_DI_PHDR +This request writes the address of the program header array to +@code{*@var{arg}}. The argument @var{arg} must be the address of an +object of type @code{const ElfW(Phdr) *} (that is, +@code{const Elf32_Phdr *} or @code{const Elf64_Phdr *}, as appropriate +for the current architecture). For this request, the value returned by +@code{dlinfo} is the number of program headers in the program header +array. @end vtable The @code{dlinfo} function is a GNU extension. |