Commit Graph

10 Commits

Author SHA1 Message Date
Martin Stein
324af5d769 os: make program ctors and dtors visible to LDSO
This is needed later when eliminating the need for a startup lib in
dynamic programs to enable LDSO to call ctors and dtors of the program.

Issue #1042
2014-02-25 14:58:07 +01:00
Martin Stein
0b64328944 base: setup thread object for main thread in CRT0
For a main thread a thread object is created by the CRT0 before _main gets
called so that _main can already run in a generic environment that, e.g.,
catches stack overflows as a page-fault instead of corrupting the BSS.
Additionally dynamic programs have only one CRT0 - the one of the LDSO -
which does the initialization for both LDSO and program.

ref #989
2014-02-25 14:58:05 +01:00
Sebastian Sumpf
b8beba5bf3 ldso: Support for setting global object values
Make 'set_program_var' accessible outside of 'rtld.c'. Also, compile
dynamically linked programs with the '-fPIC' option. Doing not so,
yields to program-global symbols being put in the '.symtab' section
(which can be stripped) only. In order to get access to global
variables from the dynamic linker, the symbols need to reside within
the '.dynsym' section additionally. Hence the '-fPIC'.

ref #989
fix #1002
2013-12-20 14:48:06 +01:00
Norman Feske
fae63f4fa9 Merge base libraries into a single library
This patch simplifies the way of how Genode's base libraries are
organized. Originally, the base API was implemented in the form of many
small libraries such as 'thread', 'env', 'server', etc. Most of them
used to consist of only a small number of files. Because those libraries
are incorporated in any build, the checking of their inter-dependencies
made the build process more verbose than desired. Also, the number of
libraries and their roles (core only, non-core only, shared by both core
and non-core) were not easy to capture.

Hereby, the base libraries have been reduced to the following few
libraries:

- startup.mk contains the startup code for normal Genode processes.
  On some platform, core is able to use the library as well.
- base-common.mk contains the parts of the base library that are
  identical by core and non-core processes.
- base.mk contains the complete base API implementation for non-core
  processes

Consequently, the 'LIBS' declaration in 'target.mk' files becomes
simpler as well. In the most simple case, only the 'base' library must
be mentioned.

Fixes #18
2013-02-19 14:45:55 +01:00
Christian Prochaska
1947d08e78 Use the host c++ for linking hybrid applications
Some shared libraries of the host system contain search paths for finding
other needed shared libraries. These paths get evaluated only by a native
linker. To find all needed shared libraries, with this patch, the host
linker is used to link hybrid applications.

Fixes #645.
2013-02-12 12:53:35 +01:00
Norman Feske
1cc1308a80 Include 'EXT_OBJECTS' in ld group
Fixes #509.
2012-11-23 18:16:52 +01:00
Christian Prochaska
c99dd8fdf8 Use 'CURDIR' make variable in Genode make files
The bash-builtin 'pwd' command uses the 'st_dev' and 'st_ino' members of
the 'stat' struct to compare the path from the 'PWD' environment variable
with the path returned by 'getcwd()'. These members don't get set
correctly in Noux and therefore the 'pwd' command sometimes returns wrong
results when building Genode in Noux. With this patch the 'CURDIR' make
variable gets used instead of calling 'pwd'.

Fixes #454.
2012-11-03 09:54:14 +01:00
Genode Labs
d1891e8a27 Merge final fixes from internal repositories 2011-12-23 14:04:29 +01:00
Norman Feske
defd6a9b58 Use POSIX threads in Linux/Genode hybrids
- Let hybrid Linux/Genode programs use POSIX threads for the
  implementation of the Thread API.
- Prevent linkage of cxx library to hybrid Linux/Genode programs because
  the cxx functionality is covered by glibc.
2011-12-22 17:17:44 +01:00
Genode Labs
da4e1feaa5 Imported Genode release 11.11 2011-12-22 16:19:25 +01:00