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on mips
Updated config to allow compilation of rcrt1.o for mips and modified it's crt1.S to perform relocates in __start.
The mips architecture performs relocations differently then most other architectures. reloc_static_pie was rewritten, taking code from dl-startup.c, in order to perfrom the additional relocations. Modifications were made to mips' dl-startup.h to allow for the use of contained macros without including _start definition.
Signed-off-by: linted <linted@users.noreply.github.com>
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on aarch64
Updated config to allow compilation of rcrt1.o for aarch64 and modified it's crt1.S to relocate dynamic section prior to __uClibc_main.
Disabled stack protector when compiling reloc_static_pie.c to avoid TLS access prior to it being setup.
Signed-off-by: linted <linted@users.noreply.github.com>
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on i386, x86_64, and arm.
This patch adds the generation of rcrt1.o which is used by gcc when compiling with the --static-pie flag.
rcrt1.o differs from crt1.o and Scrt1.o in that it the executable has a dynamic section but no relocations have been performed prior to _start being called.
crt1.o assumes there to be no dynamic relocations, and Scrt1.o has all relocations performed prior to execution by lsdo.
The new reloc_static_pie function handles parsing the dynamic section, and performing the relocations in a architecture agnostic method.
It also sets _dl_load_base which is used when initalizing TLS to ensure loading from the proper location.
This allows for easier porting of static-pie support to additional architectures as only modifications to crt1.S to find the load address are required.
Signed-off-by: linted <linted@users.noreply.github.com>
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Revert the removal of the weak pthread functions and
guarantee a link order so that single threaded applications
doesn't link in all the pthread functions they don't use.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Move h_errno related stuff to separate file.
Do not hide errno and h_errno for non-TLS, else it keeps being 0.
Make __[h_]errno_location weak for non-TLS.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Handle O=
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Fix minor errors:
- UCLIBC_SHARED_FLAT_ID instead of SHARED_FLAT_ID
- use -Wl,-shared-lib-id properly
Use libc_so.a as the source for the shared libc, in order to be able to
use -mleaf-id-shared-library on the Blackfin.
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libraries
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I had clearly run search/replace on that were cluttering things up.
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linuxthreads[_db] as well, don't try on slow box
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libc.a/libc.so, the diffs go into libc-static-y/libc-shared-y exclusively, add IMA to libc, don't use any MSRC anymore
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foreign objects to a lib
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to _dl_setup_stack_chk_guard, as in glibc. SSP requires now binutils-2.16.1 and newer. Add NOT_IN_libc/IS_IN_libc. Began using -DSHARED in uClibc_main.c, there are more candidates in there. Move back dl_protect_relro to it's earlier place.
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archs lack proper crt1. The Makefiles in extra/scripts are intended to be linked into each dir, where it is necessary to build locally.
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