Fangrui Song b19de59d62 elf: Avoid nested functions in the loader [BZ #27220] ... dynamic-link.h is included more than once in some elf/ files (rtld.c, dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested functions. This harms readability and the nested functions usage is the biggest obstacle prevents Clang build (Clang doesn't support GCC nested functions). The key idea for unnesting is to add extra parameters (struct link_map *and struct r_scope_elm *[]) to RESOLVE_MAP, ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a], elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired by Stan Shebs' ppc64/x86-64 implementation in the google/grte/v5-2.27/master which uses mixed extra parameters and static variables.) Future simplification: * If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM, elf_machine_runtime_setup can drop the `scope` parameter. * If TLSDESC no longer need to be in elf_machine_lazy_rel, elf_machine_lazy_rel can drop the `scope` parameter. Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32, sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64. In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu and riscv64-linux-gnu-rv64imafdc-lp64d. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> (cherry picked from commit 490e6c62aa)		2022-04-08 14:18:11 -04:00
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bits	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fpu	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ieee754	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
include/sys	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mips32	Update MIPS libm-test-ulps	2021-07-07 15:50:18 +00:00
mips64	Update MIPS libm-test-ulps	2021-07-07 15:50:18 +00:00
nofpu	Do not define various fenv.h macros for MIPS soft-float (bug 23479).	2018-08-02 15:53:29 +00:00
nptl	nptl: Remove remaining code from libpthread	2021-05-21 22:35:01 +02:00
sys	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
__longjmp.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
abort-instr.h	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
add_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
addmul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
atomic-machine.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
configure	Require autoconf 2.69	2014-09-29 07:53:36 -07:00
configure.ac	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
dl-dtprocnum.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-machine-reject-phdr.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-machine.h	elf: Avoid nested functions in the loader [BZ #27220]	2022-04-08 14:18:11 -04:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-relocate-ld.h	ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340]	2021-11-03 07:53:12 +01:00
dl-tls.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-trampoline.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
elf_machine_sym_no_match.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
elf-initfini.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fpregdef.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fpu_control.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gccframe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Implies	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ldbl-classify-compat.h	Move LDBL_CLASSIFY_COMPAT to its own header.	2018-02-01 21:01:00 +00:00
ldsodefs.h	ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340]	2021-11-03 07:50:30 +01:00
libc-tls.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
linkmap.h	MIPS support for GNU hash	2019-08-29 20:11:42 +00:00
localplt.data	Add localplt.data for MIPS.	2016-11-04 16:40:54 +00:00
lshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	dlfcn: Cleanups after -ldl is no longer required	2021-06-03 09:11:45 +02:00
math-tests-snan-payload.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcpy.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memset.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memusage.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nan-high-order-bit.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
preconfigure	Remove --with-fp / --without-fp.	2017-12-12 13:56:47 +00:00
regdef.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setjmp_aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sgidefs.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sotruss-lib.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stackinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
start.S	Reduce the statically linked startup code [BZ #23323]	2021-02-25 12:13:02 +01:00
strcmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sub_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
submul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tininess.h	Move mips from ports to libc.	2014-02-10 23:30:21 +00:00
tls-macros.h	MIPS: Only use .set mips* assembler directives when necessary	2015-09-08 16:52:43 +01:00
tst-abi-fp32mod.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-abi-fp64amod.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-abi-fp64mod.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-abi-fpxxmod.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-abi-fpxxomod.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-abi-interlink.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-mode-switch-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-mode-switch-2.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-mode-switch-3.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-undefined-weak-lib.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-undefined-weak.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unwind-arch.h	Implement <unwind-link.h> for dynamically loading the libgcc_s unwinder	2021-03-01 15:58:01 +01:00