devel February 2016

devel@uclibc-ng.org

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39 discussions

uClibc-ng - small C library for embedded systems branch uclibc created. 9930f8b92bb47b2dbea7679d948e3ecfbce23ca9

by wbx＠helium.waldemar-brodkorb.de

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, uclibc has been created at 9930f8b92bb47b2dbea7679d948e3ecfbce23ca9 (commit) - Log ----------------------------------------------------------------- ----------------------------------------------------------------------- hooks/post-receive -- uClibc-ng - small C library for embedded systems

8 years, 2 months

uClibc-ng - small C library for embedded systems branch 1.0 deleted. v1.0.12-3-gc0a2d0b

by wbx＠helium.waldemar-brodkorb.de

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, 1.0 has been deleted was c0a2d0b7edacbc6389574821b0231e07431dabb6 - Log ----------------------------------------------------------------- c0a2d0b7edacbc6389574821b0231e07431dabb6 frv: resurrect port somehow, totally untested ----------------------------------------------------------------------- hooks/post-receive -- uClibc-ng - small C library for embedded systems

8 years, 2 months

uClibc-ng - small C library for embedded systems branch master created. v1.0.12-3-gc0a2d0b

by wbx＠helium.waldemar-brodkorb.de

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, master has been created at c0a2d0b7edacbc6389574821b0231e07431dabb6 (commit) - Log ----------------------------------------------------------------- ----------------------------------------------------------------------- hooks/post-receive -- uClibc-ng - small C library for embedded systems

8 years, 2 months

uClibc-ng - small C library for embedded systems branch master deleted. 2799f2c1cb4ec270314c16608e8ba70f03c9aeea

by wbx＠helium.waldemar-brodkorb.de

8 years, 2 months

uClibc-ng - small C library for embedded systems branch devel-old created. 2799f2c1cb4ec270314c16608e8ba70f03c9aeea

by wbx＠helium.waldemar-brodkorb.de

8 years, 2 months

uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.12-3-gc0a2d0b

by wbx＠helium.waldemar-brodkorb.de

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, 1.0 has been updated via c0a2d0b7edacbc6389574821b0231e07431dabb6 (commit) from b499fe614ac5b492fc0fdc6e1fbbeeb904674159 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit c0a2d0b7edacbc6389574821b0231e07431dabb6 Author: Waldemar Brodkorb <wbx(a)openadk.org> Date: Fri Feb 5 21:07:40 2016 +0100 frv: resurrect port somehow, totally untested The FR-V port is really broken, and I have no emulator or hardware for this platform. I tried to get some hardware from RedHat, who made the FR-V port initially. Unfortunately Fujitsi didn't agreed to sent me some of their unused spare hardware lying @RedHat. As I invested some time to get stuff compiled, I decided to add the code and may be anytime later I can gain access to some emulator or hardware. GDB simulator for FR-V doesn't support booting Linux AFAIK. ----------------------------------------------------------------------- Summary of changes: Rules.mak | 4 +- extra/Configs/Config.in.arch | 6 +- include/link.h | 6 +- ldso/include/dl-elf.h | 2 +- ldso/include/dl-hash.h | 2 +- ldso/ldso/bfin/dl-sysdep.h | 2 +- ldso/ldso/dl-hash.c | 4 +- ldso/ldso/fdpic/dl-inlines.h | 4 + ldso/ldso/frv/dl-startup.h | 18 +- ldso/ldso/frv/dl-sysdep.h | 16 +- ldso/ldso/frv/elfinterp.c | 67 ++++---- libc/misc/elf/dl-iterate-phdr.c | 2 +- libc/sysdeps/linux/frv/Makefile | 59 +------ libc/sysdeps/linux/frv/Makefile.arch | 11 ++ libc/sysdeps/linux/frv/bits/fcntl.h | 3 + libc/sysdeps/linux/frv/bits/kernel_types.h | 3 + libc/sysdeps/linux/frv/bits/stat.h | 33 +++- libc/sysdeps/linux/frv/bits/syscalls.h | 181 +++++++------------- libc/sysdeps/linux/frv/bits/uClibc_arch_features.h | 2 +- libc/sysdeps/linux/frv/{crt0.S => crt1.S} | 9 +- libc/sysdeps/linux/frv/crtreloc.c | 50 +----- libc/sysdeps/linux/frv/jmpbuf-unwind.h | 2 - libc/sysdeps/linux/frv/syscall.c | 2 +- 23 files changed, 195 insertions(+), 293 deletions(-) create mode 100644 libc/sysdeps/linux/frv/Makefile.arch rename libc/sysdeps/linux/frv/{crt0.S => crt1.S} (95%) diff --git a/Rules.mak b/Rules.mak index 16c1c49..b1cecec 100644 --- a/Rules.mak +++ b/Rules.mak @@ -473,14 +473,12 @@ endif endif ifeq ($(TARGET_ARCH),frv) - CPU_LDFLAGS-$(CONFIG_FRV)+=-Wl,-melf32frvfd # Using -pie causes the program to have an interpreter, which is # forbidden, so we must make do with -shared. Unfortunately, # -shared by itself would get us global function descriptors # and calls through PLTs, dynamic resolution of symbols, etc, # which would break as well, but -Bsymbolic comes to the rescue. - export LDPIEFLAG:=-shared -Wl,-Bsymbolic - UCLIBC_LDSO=ld.so.1 + CPU_LDFLAGS-y += -Wl,-melf32frvfd -Wl,-Bsymbolic endif ifeq ($(strip $(TARGET_ARCH)),avr32) diff --git a/extra/Configs/Config.in.arch b/extra/Configs/Config.in.arch index 0dae84b..92f45d9 100644 --- a/extra/Configs/Config.in.arch +++ b/extra/Configs/Config.in.arch @@ -20,15 +20,15 @@ config UCLIBC_FORMAT_DSBT_ELF select DOPIC config UCLIBC_FORMAT_FLAT bool "STATIC FLAT" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO config UCLIBC_FORMAT_FLAT_SEP_DATA bool "STATIC FLAT (sep-data)" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO config UCLIBC_FORMAT_SHARED_FLAT bool "SHARED FLAT" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO help Pick this one if you are using uClinux and wish to build diff --git a/include/link.h b/include/link.h index 67bc800..711777b 100644 --- a/include/link.h +++ b/include/link.h @@ -79,7 +79,7 @@ extern struct r_debug _r_debug; */ extern ElfW(Dyn) _DYNAMIC[]; -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) # include <bits/elf-fdpic.h> #endif #ifdef __DSBT__ @@ -97,7 +97,7 @@ struct link_map /* These first few members are part of the protocol with the debugger. This is the same format used in SVR4. */ -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) struct elf32_fdpic_loadaddr l_addr; #else #ifdef __DSBT__ @@ -184,7 +184,7 @@ enum struct dl_phdr_info { -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) struct elf32_fdpic_loadaddr dlpi_addr; #else #ifdef __DSBT__ diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h index 57f0ddc..80625fd 100644 --- a/ldso/include/dl-elf.h +++ b/ldso/include/dl-elf.h @@ -203,7 +203,7 @@ unsigned int __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info /* Don't adjust .dynamic unnecessarily. For FDPIC targets, we'd have to walk all the loadsegs to find out if it was actually unnecessary, so skip this optimization. */ -#if !defined __FDPIC__ && !defined __DSBT__ +#if !defined __FRV_FDPIC__ && !defined __BFIN_FDPIC__ && !defined __DSBT__ if (load_off != 0) #endif { diff --git a/ldso/include/dl-hash.h b/ldso/include/dl-hash.h index 18f21ae..d6282bb 100644 --- a/ldso/include/dl-hash.h +++ b/ldso/include/dl-hash.h @@ -135,7 +135,7 @@ struct elf_resolve { unsigned long data_words; #endif -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) /* Every loaded module holds a hashtable of function descriptors of functions defined in it, such that it's easy to release the memory when the module is dlclose()d. */ diff --git a/ldso/ldso/bfin/dl-sysdep.h b/ldso/ldso/bfin/dl-sysdep.h index a026b64..5758117 100644 --- a/ldso/ldso/bfin/dl-sysdep.h +++ b/ldso/ldso/bfin/dl-sysdep.h @@ -79,7 +79,7 @@ while (0) #define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \ __dl_map_segment (EPNT, PPNT, INFILE, FLAGS) -#if defined(__FDPIC__) +#if defined(__BFIN_FDPIC__) #include "../fdpic/dl-sysdep.h" static __always_inline Elf32_Addr diff --git a/ldso/ldso/dl-hash.c b/ldso/ldso/dl-hash.c index 2c659dc..740626e 100644 --- a/ldso/ldso/dl-hash.c +++ b/ldso/ldso/dl-hash.c @@ -378,7 +378,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res break; #endif case STB_GLOBAL: -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) if (sym_ref) sym_ref->tpnt = tpnt; #endif @@ -387,7 +387,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res break; } } -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) if (sym_ref) sym_ref->tpnt = tpnt; #endif diff --git a/ldso/ldso/fdpic/dl-inlines.h b/ldso/ldso/fdpic/dl-inlines.h index ebbd033..a9bfc93 100644 --- a/ldso/ldso/fdpic/dl-inlines.h +++ b/ldso/ldso/fdpic/dl-inlines.h @@ -176,6 +176,10 @@ _dl_funcdesc_for (void *entry_point, void *got_value) } entry = htab_find_slot(ht, entry_point, 1, hash_pointer, eq_pointer); + + if (entry == NULL) + _dl_exit(1); + if (*entry) { _dl_assert((*entry)->entry_point == entry_point); return _dl_stabilize_funcdesc(*entry); diff --git a/ldso/ldso/frv/dl-startup.h b/ldso/ldso/frv/dl-startup.h index 2aa7baa..45e9cb9 100644 --- a/ldso/ldso/frv/dl-startup.h +++ b/ldso/ldso/frv/dl-startup.h @@ -27,9 +27,10 @@ __asm__("" \ " .text\n" \ -" .global _dl_boot\n" \ -" .type _dl_boot,@function\n" \ -"_dl_boot:\n" \ +" .global _start\n" \ +" .type _start,@function\n" \ +" .hidden _start\n" \ +"_start:\n" \ " call .Lcall\n" \ ".Lcall:\n" \ " movsg lr, gr4\n" \ @@ -54,18 +55,18 @@ __asm__("" \ " addi.p sp, #4, gr13\n" \ " addi sp, #-8, sp\n" \ " mov.p sp, gr12\n" \ -" call _dl_boot2\n" \ +" call _dl_start\n" \ " ldd.p @(sp, gr0), gr14\n" \ " addi sp, #8, sp\n" \ " movgs gr0, lr\n" \ " jmpl @(gr14, gr0)\n" \ -" .size _dl_boot,.-_dl_boot\n" \ +" .size _start,.-_start\n" \ ); -#define _dl_boot _dl_boot2 -#define DL_BOOT(X) \ +#undef DL_START +#define DL_START(X) \ static void __attribute__ ((used)) \ -_dl_boot (void *dl_boot_got_pointer, \ +_dl_start (Elf32_Addr dl_boot_got_pointer, \ struct elf32_fdpic_loadmap *dl_boot_progmap, \ struct elf32_fdpic_loadmap *dl_boot_ldsomap, \ Elf32_Dyn *dl_boot_ldso_dyn_pointer, \ @@ -115,6 +116,5 @@ _dl_boot (void *dl_boot_got_pointer, \ while (exec_mod->libtype != elf_executable) \ exec_mod = exec_mod->next; \ dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \ - /* _dl_dprintf(2, "entry point is (%x,%x)\n", dl_main_funcdesc->entry_point, dl_main_funcdesc->got_value); */ \ return; \ } while (0) diff --git a/ldso/ldso/frv/dl-sysdep.h b/ldso/ldso/frv/dl-sysdep.h index f4e8b4c..e6bf7f1 100644 --- a/ldso/ldso/frv/dl-sysdep.h +++ b/ldso/ldso/frv/dl-sysdep.h @@ -40,9 +40,6 @@ extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden"))); #define SEND_EARLY_STDERR(S) \ do { static char __s[] = (S); SEND_STDERR (__s); } while (0) -#define DL_RELOC_ADDR(ADDR, LOADADDR) \ - (__reloc_pointer ((void*)(ADDR), (LOADADDR).map)) - /* Make sure we only load libraries that use the same number of general-purpose and floating-point registers the dynamic loader was compiled for. */ @@ -85,3 +82,16 @@ do \ while (0) #include "../fdpic/dl-sysdep.h" + +static __always_inline Elf32_Addr +elf_machine_load_address (void) +{ + return 0; +} + +static __always_inline void +elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr, + Elf32_Word relative_count) +{ + ; +} diff --git a/ldso/ldso/frv/elfinterp.c b/ldso/ldso/frv/elfinterp.c index 6cb09f8..2c954b3 100644 --- a/ldso/ldso/frv/elfinterp.c +++ b/ldso/ldso/frv/elfinterp.c @@ -10,6 +10,7 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ +#include <sys/cdefs.h> /* __attribute_used__ */ #include <features.h> /* Program to load an ELF binary on a linux system, and run it. @@ -31,34 +32,30 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) ElfW(Sym) *symtab; int symtab_index; char *rel_addr; - struct elf_resolve *new_tpnt; char *new_addr; struct funcdesc_value funcval; struct funcdesc_value volatile *got_entry; char *symname; + struct symbol_ref sym_ref; - rel_addr = DL_RELOC_ADDR (tpnt->dynamic_info[DT_JMPREL], - tpnt->loadaddr); + rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL]; this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry); symtab_index = ELF_R_SYM(this_reloc->r_info); - symtab = (ElfW(Sym) *)(intptr_t) - DL_RELOC_ADDR (tpnt->dynamic_info[DT_SYMTAB], - tpnt->loadaddr); - strtab = DL_RELOC_ADDR (tpnt->dynamic_info[DT_STRTAB], tpnt->loadaddr); + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]; + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; + sym_ref.sym = &symtab[symtab_index]; + sym_ref.tpnt = NULL; symname= strtab + symtab[symtab_index].st_name; /* Address of GOT entry fix up */ - got_entry = (struct funcdesc_value *) - DL_RELOC_ADDR (this_reloc->r_offset, tpnt->loadaddr); + got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset); /* Get the address to be used to fill in the GOT entry. */ - new_addr = _dl_find_hash_mod(symname, &_dl_loaded_modules->symbol_scope, NULL, 0, - &new_tpnt); + new_addr = _dl_find_hash(symname, &_dl_loaded_modules->symbol_scope, NULL, 0, &sym_ref); if (!new_addr) { - new_addr = _dl_find_hash_mod(symname, NULL, NULL, 0, - &new_tpnt); + new_addr = _dl_find_hash(symname, NULL, NULL, 0, &sym_ref); if (!new_addr) { _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", _dl_progname, symname); @@ -67,7 +64,7 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) } funcval.entry_point = new_addr; - funcval.got_value = new_tpnt->loadaddr.got_value; + funcval.got_value = sym_ref.tpnt->loadaddr.got_value; #if defined (__SUPPORT_LD_DEBUG__) if (_dl_debug_bindings) @@ -103,14 +100,13 @@ _dl_parse(struct elf_resolve *tpnt, struct r_scope_elem *scope, int symtab_index; /* Now parse the relocation information */ - rpnt = (ELF_RELOC *)(intptr_t) DL_RELOC_ADDR (rel_addr, tpnt->loadaddr); + rpnt = (ELF_RELOC *) rel_addr; rel_size = rel_size / sizeof(ELF_RELOC); - symtab = (ElfW(Sym) *)(intptr_t) - DL_RELOC_ADDR (tpnt->dynamic_info[DT_SYMTAB], tpnt->loadaddr); - strtab = DL_RELOC_ADDR (tpnt->dynamic_info[DT_STRTAB], tpnt->loadaddr); + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]; + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; - for (i = 0; i < rel_size; i++, rpnt++) { + for (i = 0; i < rel_size; i++, rpnt++) { int res; symtab_index = ELF_R_SYM(rpnt->r_info); @@ -161,24 +157,24 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, #if defined (__SUPPORT_LD_DEBUG__) unsigned long old_val; #endif + struct symbol_ref sym_ref; - reloc_addr = (unsigned long *)(intptr_t) - DL_RELOC_ADDR (rpnt->r_offset, tpnt->loadaddr); + reloc_addr = (unsigned long *) DL_RELOC_ADDR (tpnt->loadaddr, rpnt->r_offset); __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr)); reloc_type = ELF_R_TYPE(rpnt->r_info); symtab_index = ELF_R_SYM(rpnt->r_info); symbol_addr = 0; + sym_ref.sym = &symtab[symtab_index]; + sym_ref.tpnt = NULL; symname = strtab + symtab[symtab_index].st_name; if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) { - symbol_addr = (unsigned long) - DL_RELOC_ADDR (symtab[symtab_index].st_value, - tpnt->loadaddr); + symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value); symbol_tpnt = tpnt; } else { symbol_addr = (unsigned long) - _dl_find_hash_mod(symname, scope, NULL, 0, &symbol_tpnt); + _dl_find_hash(symname, scope, NULL, 0, &sym_ref); /* * We want to allow undefined references to weak symbols - this might @@ -191,6 +187,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, _dl_progname, strtab + symtab[symtab_index].st_name); _dl_exit (1); } + symbol_tpnt = sym_ref.tpnt; } #if defined (__SUPPORT_LD_DEBUG__) @@ -276,9 +273,9 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, static int _dl_do_lazy_reloc (struct elf_resolve *tpnt, - struct r_scope_elem *scope __attribute_used__, - ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute_used__, - char *strtab __attribute_used__) + struct r_scope_elem *scope __attribute__((unused)), + ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)), + char *strtab __attribute__((unused))) { int reloc_type; struct funcdesc_value volatile *reloc_addr; @@ -288,7 +285,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, #endif reloc_addr = (struct funcdesc_value *)(intptr_t) - DL_RELOC_ADDR (rpnt->r_offset, tpnt->loadaddr); + DL_RELOC_ADDR (tpnt->loadaddr, rpnt->r_offset); reloc_type = ELF_R_TYPE(rpnt->r_info); #if defined (__SUPPORT_LD_DEBUG__) @@ -299,9 +296,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, break; case R_FRV_FUNCDESC_VALUE: funcval = *reloc_addr; - funcval.entry_point = - DL_RELOC_ADDR (funcval.entry_point, - tpnt->loadaddr); + funcval.entry_point = (void *) DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point); funcval.got_value = tpnt->loadaddr.got_value; *reloc_addr = funcval; break; @@ -334,14 +329,14 @@ _dl_parse_relocation_information int _dl_parse_copy_information -(struct dyn_elf *rpnt __attribute_used__, - unsigned long rel_addr __attribute_used__, - unsigned long rel_size __attribute_used__) +(struct dyn_elf *rpnt __attribute__((unused)), + unsigned long rel_addr __attribute__((unused)), + unsigned long rel_size __attribute__((unused))) { return 0; } -#ifndef LIBDL +#ifndef IS_IN_libdl # include "../../libc/sysdeps/linux/frv/crtreloc.c" #endif diff --git a/libc/misc/elf/dl-iterate-phdr.c b/libc/misc/elf/dl-iterate-phdr.c index 5b86db0..27a9254 100644 --- a/libc/misc/elf/dl-iterate-phdr.c +++ b/libc/misc/elf/dl-iterate-phdr.c @@ -58,7 +58,7 @@ dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info, /* This entry describes this statically-linked program itself. */ struct dl_phdr_info info; int ret; -#if defined(__FDPIC__) +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) info.dlpi_addr.map = NULL; info.dlpi_addr.got_value = NULL; #elif defined(__DSBT__) diff --git a/libc/sysdeps/linux/frv/Makefile b/libc/sysdeps/linux/frv/Makefile index 7cdb8ec..3970f62 100644 --- a/libc/sysdeps/linux/frv/Makefile +++ b/libc/sysdeps/linux/frv/Makefile @@ -1,58 +1,13 @@ # Makefile for uClibc # # Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org> -# ported to FR-V by Alexandre Oliva <aoliva(a)redhat.com> # # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# -TOPDIR=../../../../ -include $(TOPDIR)Rules.mak - -CRT_SRC := crt0.S -CRT_OBJ := crt0.o crt1.o -SCRT_OBJ := $(patsubst %,S%, $(CRT_OBJ)) - -CTOR_TARGETS := crti.o crtn.o - -SSRC := __longjmp.S setjmp.S clone.S vfork.S -SOBJ := $(patsubst %.S,%.o, $(SSRC)) - -CSRC = sysdep.c syscall.c brk.c sbrk.c __init_brk.c dl-iterate-phdr.c -CSRC += xstatconv.c stat.c stat64.c fstat.c fstat64.c lstat.c lstat64.c -COBJ := $(patsubst %.c,%.o, $(CSRC)) - -OBJS := $(SOBJ) $(COBJ) - -OBJ_LIST := ../../../obj.sysdeps.$(TARGET_ARCH) - -all: $(OBJ_LIST) - -$(OBJ_LIST): $(OBJS) $(CRT_OBJ) $(SCRT_OBJ) $(CTOR_TARGETS) - $(STRIPTOOL) -x -R .note -R .comment $^ - $(INSTALL) -d $(TOPDIR)lib/ - cp $(CRT_OBJ) $(SCRT_OBJ) $(CTOR_TARGETS) $(TOPDIR)lib/ - echo $(patsubst %, sysdeps/linux/$(TARGET_ARCH)/%, $(OBJS)) > $@ - -$(CRT_OBJ): $(CRT_SRC) crtreloc.o - $(CC) $(ASFLAGS) -DL_$* -r -nostdlib $^ -o $*.o - -crtreloc.o: crtreloc.c - $(CC) $(CFLAGS) -c $< -o $@ - -$(SCRT_OBJ): $(CRT_SRC) Scrtreloc.o - $(CC) $(ASFLAGS) $(PIEFLAG) -DL_$* -r -nostdlib $^ -o $*.o - -Scrtreloc.o: crtreloc.c - $(CC) $(CFLAGS) $(PIEFLAG) -c $< -o $@ - -$(CTOR_TARGETS): %.o : %.S - $(CC) $(ASFLAGS) $(SSP_DISABLE_FLAGS) -c $< -o $@ - -$(SOBJ): %.o : %.S - $(CC) $(ASFLAGS) -c $< -o $@ - -$(COBJ): %.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -clean: - $(RM) *.o *~ core +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/frv/Makefile.arch b/libc/sysdeps/linux/frv/Makefile.arch new file mode 100644 index 0000000..be48fd0 --- /dev/null +++ b/libc/sysdeps/linux/frv/Makefile.arch @@ -0,0 +1,11 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org> +# ported to FR-V by Alexandre Oliva <aoliva(a)redhat.com> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + +CSRC-y := sysdep.c syscall.c brk.c sbrk.c __init_brk.c dl-iterate-phdr.c + +SSRC-y := __longjmp.S setjmp.S clone.S vfork.S + diff --git a/libc/sysdeps/linux/frv/bits/fcntl.h b/libc/sysdeps/linux/frv/bits/fcntl.h index 0ef5f29..0581f2b 100644 --- a/libc/sysdeps/linux/frv/bits/fcntl.h +++ b/libc/sysdeps/linux/frv/bits/fcntl.h @@ -22,6 +22,9 @@ #include <sys/types.h> +#ifdef __USE_GNU +# include <bits/uio.h> +#endif /* open/fcntl - O_SYNC is only implemented on blocks devices and on files located on an ext2 file system */ diff --git a/libc/sysdeps/linux/frv/bits/kernel_types.h b/libc/sysdeps/linux/frv/bits/kernel_types.h index 8403fd3..be4fe22 100644 --- a/libc/sysdeps/linux/frv/bits/kernel_types.h +++ b/libc/sysdeps/linux/frv/bits/kernel_types.h @@ -31,6 +31,9 @@ typedef unsigned int __kernel_gid32_t; typedef unsigned short __kernel_old_uid_t; typedef unsigned short __kernel_old_gid_t; typedef long long __kernel_loff_t; +typedef __kernel_dev_t __kernel_old_dev_t; +typedef long __kernel_long_t; +typedef unsigned long __kernel_ulong_t; typedef struct { #ifdef __USE_ALL diff --git a/libc/sysdeps/linux/frv/bits/stat.h b/libc/sysdeps/linux/frv/bits/stat.h index 83f5b47..e6a1944 100644 --- a/libc/sysdeps/linux/frv/bits/stat.h +++ b/libc/sysdeps/linux/frv/bits/stat.h @@ -70,6 +70,20 @@ struct stat __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ #endif +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else unsigned long int __unused1; __time_t st_atime; /* Time of last access. */ @@ -78,7 +92,7 @@ struct stat unsigned long int __unused3; __time_t st_ctime; /* Time of last status change. */ - +#endif unsigned long long __unused4; }; @@ -103,7 +117,20 @@ struct stat64 __blksize_t st_blksize; /* Optimal block size for I/O. */ __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ - +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else unsigned long int __unused1; __time_t st_atime; /* Time of last access. */ @@ -112,7 +139,7 @@ struct stat64 unsigned long int __unused3; __time_t st_ctime; /* Time of last status change. */ - +#endif unsigned long long __unused4; }; #endif diff --git a/libc/sysdeps/linux/frv/bits/syscalls.h b/libc/sysdeps/linux/frv/bits/syscalls.h index b1f5320..b03e8db 100644 --- a/libc/sysdeps/linux/frv/bits/syscalls.h +++ b/libc/sysdeps/linux/frv/bits/syscalls.h @@ -10,128 +10,71 @@ #define SYS_ify(syscall_name) (__NR_##syscall_name) -/* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */ -#if defined _LIBC && !defined __set_errno -# define __syscall_return(type, res) \ -do { \ - unsigned long __sr2 = (res); \ - if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \ - extern int __syscall_error (int); \ - return (type) __syscall_error (__sr2); \ - } \ - return (type) (__sr2); \ -} while (0) -#else -# define __syscall_return(type, res) \ -do { \ - unsigned long __sr2 = (res); \ - if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \ - __set_errno (-__sr2); \ - __sr2 = -1; \ - } \ - return (type) (__sr2); \ -} while (0) -#endif - -#ifndef __set_errno -# define __set_errno(val) ((*__errno_location ()) = (val)) -#endif - -/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */ - -#define _syscall0(type,name) \ -type name(void) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8"); \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "=r" (__sc0) \ - : "r" (__scnum)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1,type2 arg2) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1,type2 arg2,type3 arg3) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2)); \ -__syscall_return(type,__sc0); \ -} +#define INLINE_SYSCALL_NCS(name, nr, args...) \ +(__extension__ \ + ({ \ + unsigned int _inline_sys_result = INTERNAL_SYSCALL_NCS (name, , nr, args);\ + if (unlikely (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ))) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ + _inline_sys_result = (unsigned int) -1; \ + } \ + (int) _inline_sys_result; \ + }) \ +) -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3)); \ -__syscall_return(type,__sc0); \ -} +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ + ({unsigned int __internal_sys_result; \ + { \ + register int __a1 __asm__ ("gr8"); \ + register int _nr __asm__ ("gr7"); \ + LOAD_ARGS_##nr (args) \ + _nr = (name); \ + __asm__ __volatile__ ("tra gr0,gr0" \ + : "=r" (__a1) \ + : "r" (_nr) ASM_ARGS_##nr \ + : "memory"); \ + __internal_sys_result = __a1; \ + } \ + (int) __internal_sys_result; }) \ +) -#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), \ - "r" (__sc3), "r" (__sc4)); \ -__syscall_return(type,__sc0); \ -} +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int) (val) >= 0xfffff001u) -#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \ -register unsigned long __sc5 __asm__ ("gr13") = (unsigned long) arg6; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), \ - "r" (__sc3), "r" (__sc4), "r" (__sc5)); \ -__syscall_return(type,__sc0); \ -} +#define LOAD_ARGS_0() +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + int __a1tmp = (int) (a1); \ + LOAD_ARGS_0 () \ + __a1 = __a1tmp; +#define ASM_ARGS_1 ASM_ARGS_0, "r" (__a1) +#define LOAD_ARGS_2(a1, a2) \ + int __a2tmp = (int) (a2); \ + LOAD_ARGS_1 (a1) \ + register int __a2 __asm__ ("gr8") = __a2tmp; +#define ASM_ARGS_2 ASM_ARGS_1, "r" (__a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + int __a3tmp = (int) (a3); \ + LOAD_ARGS_2 (a1, a2) \ + register int __a3 __asm__ ("gr9") = __a3tmp; +#define ASM_ARGS_3 ASM_ARGS_2, "r" (__a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + int __a4tmp = (int) (a4); \ + LOAD_ARGS_3 (a1, a2, a3) \ + register int __a4 __asm__ ("gr10") = __a4tmp; +#define ASM_ARGS_4 ASM_ARGS_3, "r" (__a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + int __v1tmp = (int) (a5); \ + LOAD_ARGS_4 (a1, a2, a3, a4) \ + register int __v1 __asm__ ("gr11") = __v1tmp; +#define ASM_ARGS_5 ASM_ARGS_4, "r" (__v1) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + int __v2tmp = (int) (a6); \ + LOAD_ARGS_5 (a1, a2, a3, a4, a5) \ + register int __v2 __asm__ ("gr12") = __v2tmp; +#define ASM_ARGS_6 ASM_ARGS_5, "r" (__v2) #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h b/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h index 293cc9b..f660fd2 100644 --- a/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h @@ -37,6 +37,6 @@ #define __UCLIBC_HAVE_SIGNED_ZERO__ /* only weird assemblers generally need this */ -#undef __UCLIBC_ASM_LINE_SEP__ +#define __UCLIBC_ASM_LINE_SEP__ ! #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/frv/crt0.S b/libc/sysdeps/linux/frv/crt1.S similarity index 95% rename from libc/sysdeps/linux/frv/crt0.S rename to libc/sysdeps/linux/frv/crt1.S index 59f61f9..0827fea 100644 --- a/libc/sysdeps/linux/frv/crt0.S +++ b/libc/sysdeps/linux/frv/crt1.S @@ -44,13 +44,10 @@ not, see <http://www.gnu.org/licenses/>. */ .text .global _start .type _start,%function -#if defined L_crt0 || defined L_Scrt0 || ! defined __UCLIBC_CTOR_DTOR__ - .type __uClibc_main,%function -#else .weak _init .weak _fini - .type __uClibc_start_main,%function -#endif + .type __uClibc_main,%function + _start: /* Make sure the stack pointer is properly aligned. Save the original value in gr21 such that we can get to arguments and @@ -104,7 +101,7 @@ _start: ld.p @(gr11, gr17), gr11 mov gr17, gr15 ld.p @(gr12, gr17), gr12 - call __uClibc_start_main + call __uClibc_main #else mov.p gr17, gr15 call __uClibc_main diff --git a/libc/sysdeps/linux/frv/crtreloc.c b/libc/sysdeps/linux/frv/crtreloc.c index cd07170..b1d5423 100644 --- a/libc/sysdeps/linux/frv/crtreloc.c +++ b/libc/sysdeps/linux/frv/crtreloc.c @@ -25,6 +25,8 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; see the file COPYING.LIB. If not, see <http://www.gnu.org/licenses/>. */ +#ifdef __FRV_FDPIC__ + #include <sys/types.h> #include <link.h> @@ -61,7 +63,7 @@ reloc_range_indirect (void ***p, void ***e, /* Call __reloc_range_indirect for the given range except for the last entry, whose contents are only relocated. It's expected to hold the GOT value. */ -void* attribute_hidden +attribute_hidden void* __self_reloc (const struct elf32_fdpic_loadmap *map, void ***p, void ***e) { @@ -72,48 +74,4 @@ __self_reloc (const struct elf32_fdpic_loadmap *map, return __reloc_pointer (*p, map); } - -#if 0 -/* These are other functions that might be useful, but that we don't - need. */ - -/* Remap pointers in [p,e). */ -static __always_inline void** -reloc_range (void **p, void **e, - const struct elf32_fdpic_loadmap *map) -{ - while (p < e) - { - *p = __reloc_pointer (*p, map); - p++; - } - return p; -} - -/* Remap p, adjust e by the same offset, then map the pointers in the - range determined by them. */ -void attribute_hidden -__reloc_range (const struct elf32_fdpic_loadmap *map, - void **p, void **e) -{ - void **old = p; - - p = __reloc_pointer (p, map); - e += p - old; - reloc_range (p, e, map); -} - -/* Remap p, adjust e by the same offset, then map pointers referenced - by the (unadjusted) pointers in the range. Return the relocated - value of the last pointer in the range. */ -void* attribute_hidden -__reloc_range_indirect (const struct elf32_fdpic_loadmap *map, - void ***p, void ***e) -{ - void ***old = p; - - p = __reloc_pointer (p, map); - e += p - old; - return reloc_range_indirect (p, e, map); -} -#endif +#endif /* __FRV_FDPIC__ */ diff --git a/libc/sysdeps/linux/frv/jmpbuf-unwind.h b/libc/sysdeps/linux/frv/jmpbuf-unwind.h index b58f3f0..c22ab24 100644 --- a/libc/sysdeps/linux/frv/jmpbuf-unwind.h +++ b/libc/sysdeps/linux/frv/jmpbuf-unwind.h @@ -10,5 +10,3 @@ containing a local variable at ADDRESS. */ #define _JMPBUF_UNWINDS(jmpbuf, address) \ ((void *) (address) < (void *) (jmpbuf)->__sp) - -#endif /* bits/setjmp.h */ diff --git a/libc/sysdeps/linux/frv/syscall.c b/libc/sysdeps/linux/frv/syscall.c index 68fe556..a98cf38 100644 --- a/libc/sysdeps/linux/frv/syscall.c +++ b/libc/sysdeps/linux/frv/syscall.c @@ -37,5 +37,5 @@ long syscall(long sysnum, long arg1, long arg2, long arg3, : "+r" (__sc0) : "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5)); - __syscall_return(long,__sc0); + return (long) __sc0; } hooks/post-receive -- uClibc-ng - small C library for embedded systems

8 years, 2 months

uClibc-ng - small C library for embedded systems branch master updated. 2799f2c1cb4ec270314c16608e8ba70f03c9aeea

by wbx＠helium.waldemar-brodkorb.de

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, master has been updated via 2799f2c1cb4ec270314c16608e8ba70f03c9aeea (commit) from 2bc8b6d0d763010295d7fce47a6d0363cdb1b5e1 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 2799f2c1cb4ec270314c16608e8ba70f03c9aeea Author: Waldemar Brodkorb <wbx(a)openadk.org> Date: Fri Feb 5 21:07:40 2016 +0100 frv: resurrect port somehow, totally untested The FR-V port is really broken, and I have no emulator or hardware for this platform. I tried to get some hardware from RedHat, who made the FR-V port initially. Unfortunately Fujitsi didn't agreed to sent me some of their unused spare hardware lying @RedHat. As I invested some time to get stuff compiled, I decided to add the code and may be anytime later I can gain access to some emulator or hardware. GDB simulator for FR-V doesn't support booting Linux AFAIK. ----------------------------------------------------------------------- Summary of changes: Rules.mak | 4 +- extra/Configs/Config.in.arch | 6 +- include/link.h | 6 +- ldso/include/dl-elf.h | 2 +- ldso/include/dl-hash.h | 2 +- ldso/ldso/bfin/dl-sysdep.h | 2 +- ldso/ldso/dl-hash.c | 4 +- ldso/ldso/fdpic/dl-inlines.h | 4 + ldso/ldso/frv/dl-startup.h | 18 +- ldso/ldso/frv/dl-sysdep.h | 16 +- ldso/ldso/frv/elfinterp.c | 67 ++++---- libc/misc/elf/dl-iterate-phdr.c | 2 +- libc/sysdeps/linux/frv/Makefile | 59 +------ libc/sysdeps/linux/frv/Makefile.arch | 11 ++ libc/sysdeps/linux/frv/bits/fcntl.h | 3 + libc/sysdeps/linux/frv/bits/kernel_types.h | 3 + libc/sysdeps/linux/frv/bits/stat.h | 33 +++- libc/sysdeps/linux/frv/bits/syscalls.h | 181 +++++++------------- libc/sysdeps/linux/frv/bits/uClibc_arch_features.h | 2 +- libc/sysdeps/linux/frv/{crt0.S => crt1.S} | 9 +- libc/sysdeps/linux/frv/crtreloc.c | 50 +----- libc/sysdeps/linux/frv/jmpbuf-unwind.h | 2 - libc/sysdeps/linux/frv/syscall.c | 2 +- 23 files changed, 195 insertions(+), 293 deletions(-) create mode 100644 libc/sysdeps/linux/frv/Makefile.arch rename libc/sysdeps/linux/frv/{crt0.S => crt1.S} (95%) diff --git a/Rules.mak b/Rules.mak index 454479e..d488f12 100644 --- a/Rules.mak +++ b/Rules.mak @@ -474,14 +474,12 @@ endif endif ifeq ($(TARGET_ARCH),frv) - CPU_LDFLAGS-$(CONFIG_FRV)+=-Wl,-melf32frvfd # Using -pie causes the program to have an interpreter, which is # forbidden, so we must make do with -shared. Unfortunately, # -shared by itself would get us global function descriptors # and calls through PLTs, dynamic resolution of symbols, etc, # which would break as well, but -Bsymbolic comes to the rescue. - export LDPIEFLAG:=-shared -Wl,-Bsymbolic - UCLIBC_LDSO=ld.so.1 + CPU_LDFLAGS-y += -Wl,-melf32frvfd -Wl,-Bsymbolic endif ifeq ($(strip $(TARGET_ARCH)),avr32) diff --git a/extra/Configs/Config.in.arch b/extra/Configs/Config.in.arch index 0dae84b..92f45d9 100644 --- a/extra/Configs/Config.in.arch +++ b/extra/Configs/Config.in.arch @@ -20,15 +20,15 @@ config UCLIBC_FORMAT_DSBT_ELF select DOPIC config UCLIBC_FORMAT_FLAT bool "STATIC FLAT" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO config UCLIBC_FORMAT_FLAT_SEP_DATA bool "STATIC FLAT (sep-data)" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO config UCLIBC_FORMAT_SHARED_FLAT bool "SHARED FLAT" - depends on !ARCH_USE_MMU + depends on !ARCH_USE_MMU && !TARGET_frv select ARCH_HAS_NO_LDSO help Pick this one if you are using uClinux and wish to build diff --git a/include/link.h b/include/link.h index 67bc800..711777b 100644 --- a/include/link.h +++ b/include/link.h @@ -79,7 +79,7 @@ extern struct r_debug _r_debug; */ extern ElfW(Dyn) _DYNAMIC[]; -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) # include <bits/elf-fdpic.h> #endif #ifdef __DSBT__ @@ -97,7 +97,7 @@ struct link_map /* These first few members are part of the protocol with the debugger. This is the same format used in SVR4. */ -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) struct elf32_fdpic_loadaddr l_addr; #else #ifdef __DSBT__ @@ -184,7 +184,7 @@ enum struct dl_phdr_info { -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) struct elf32_fdpic_loadaddr dlpi_addr; #else #ifdef __DSBT__ diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h index 57f0ddc..80625fd 100644 --- a/ldso/include/dl-elf.h +++ b/ldso/include/dl-elf.h @@ -203,7 +203,7 @@ unsigned int __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info /* Don't adjust .dynamic unnecessarily. For FDPIC targets, we'd have to walk all the loadsegs to find out if it was actually unnecessary, so skip this optimization. */ -#if !defined __FDPIC__ && !defined __DSBT__ +#if !defined __FRV_FDPIC__ && !defined __BFIN_FDPIC__ && !defined __DSBT__ if (load_off != 0) #endif { diff --git a/ldso/include/dl-hash.h b/ldso/include/dl-hash.h index 18f21ae..d6282bb 100644 --- a/ldso/include/dl-hash.h +++ b/ldso/include/dl-hash.h @@ -135,7 +135,7 @@ struct elf_resolve { unsigned long data_words; #endif -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) /* Every loaded module holds a hashtable of function descriptors of functions defined in it, such that it's easy to release the memory when the module is dlclose()d. */ diff --git a/ldso/ldso/bfin/dl-sysdep.h b/ldso/ldso/bfin/dl-sysdep.h index a026b64..5758117 100644 --- a/ldso/ldso/bfin/dl-sysdep.h +++ b/ldso/ldso/bfin/dl-sysdep.h @@ -79,7 +79,7 @@ while (0) #define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \ __dl_map_segment (EPNT, PPNT, INFILE, FLAGS) -#if defined(__FDPIC__) +#if defined(__BFIN_FDPIC__) #include "../fdpic/dl-sysdep.h" static __always_inline Elf32_Addr diff --git a/ldso/ldso/dl-hash.c b/ldso/ldso/dl-hash.c index 2c659dc..740626e 100644 --- a/ldso/ldso/dl-hash.c +++ b/ldso/ldso/dl-hash.c @@ -378,7 +378,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res break; #endif case STB_GLOBAL: -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) if (sym_ref) sym_ref->tpnt = tpnt; #endif @@ -387,7 +387,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res break; } } -#ifdef __FDPIC__ +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) if (sym_ref) sym_ref->tpnt = tpnt; #endif diff --git a/ldso/ldso/fdpic/dl-inlines.h b/ldso/ldso/fdpic/dl-inlines.h index ebbd033..a9bfc93 100644 --- a/ldso/ldso/fdpic/dl-inlines.h +++ b/ldso/ldso/fdpic/dl-inlines.h @@ -176,6 +176,10 @@ _dl_funcdesc_for (void *entry_point, void *got_value) } entry = htab_find_slot(ht, entry_point, 1, hash_pointer, eq_pointer); + + if (entry == NULL) + _dl_exit(1); + if (*entry) { _dl_assert((*entry)->entry_point == entry_point); return _dl_stabilize_funcdesc(*entry); diff --git a/ldso/ldso/frv/dl-startup.h b/ldso/ldso/frv/dl-startup.h index 2aa7baa..45e9cb9 100644 --- a/ldso/ldso/frv/dl-startup.h +++ b/ldso/ldso/frv/dl-startup.h @@ -27,9 +27,10 @@ __asm__("" \ " .text\n" \ -" .global _dl_boot\n" \ -" .type _dl_boot,@function\n" \ -"_dl_boot:\n" \ +" .global _start\n" \ +" .type _start,@function\n" \ +" .hidden _start\n" \ +"_start:\n" \ " call .Lcall\n" \ ".Lcall:\n" \ " movsg lr, gr4\n" \ @@ -54,18 +55,18 @@ __asm__("" \ " addi.p sp, #4, gr13\n" \ " addi sp, #-8, sp\n" \ " mov.p sp, gr12\n" \ -" call _dl_boot2\n" \ +" call _dl_start\n" \ " ldd.p @(sp, gr0), gr14\n" \ " addi sp, #8, sp\n" \ " movgs gr0, lr\n" \ " jmpl @(gr14, gr0)\n" \ -" .size _dl_boot,.-_dl_boot\n" \ +" .size _start,.-_start\n" \ ); -#define _dl_boot _dl_boot2 -#define DL_BOOT(X) \ +#undef DL_START +#define DL_START(X) \ static void __attribute__ ((used)) \ -_dl_boot (void *dl_boot_got_pointer, \ +_dl_start (Elf32_Addr dl_boot_got_pointer, \ struct elf32_fdpic_loadmap *dl_boot_progmap, \ struct elf32_fdpic_loadmap *dl_boot_ldsomap, \ Elf32_Dyn *dl_boot_ldso_dyn_pointer, \ @@ -115,6 +116,5 @@ _dl_boot (void *dl_boot_got_pointer, \ while (exec_mod->libtype != elf_executable) \ exec_mod = exec_mod->next; \ dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \ - /* _dl_dprintf(2, "entry point is (%x,%x)\n", dl_main_funcdesc->entry_point, dl_main_funcdesc->got_value); */ \ return; \ } while (0) diff --git a/ldso/ldso/frv/dl-sysdep.h b/ldso/ldso/frv/dl-sysdep.h index f4e8b4c..e6bf7f1 100644 --- a/ldso/ldso/frv/dl-sysdep.h +++ b/ldso/ldso/frv/dl-sysdep.h @@ -40,9 +40,6 @@ extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden"))); #define SEND_EARLY_STDERR(S) \ do { static char __s[] = (S); SEND_STDERR (__s); } while (0) -#define DL_RELOC_ADDR(ADDR, LOADADDR) \ - (__reloc_pointer ((void*)(ADDR), (LOADADDR).map)) - /* Make sure we only load libraries that use the same number of general-purpose and floating-point registers the dynamic loader was compiled for. */ @@ -85,3 +82,16 @@ do \ while (0) #include "../fdpic/dl-sysdep.h" + +static __always_inline Elf32_Addr +elf_machine_load_address (void) +{ + return 0; +} + +static __always_inline void +elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr, + Elf32_Word relative_count) +{ + ; +} diff --git a/ldso/ldso/frv/elfinterp.c b/ldso/ldso/frv/elfinterp.c index 6cb09f8..2c954b3 100644 --- a/ldso/ldso/frv/elfinterp.c +++ b/ldso/ldso/frv/elfinterp.c @@ -10,6 +10,7 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ +#include <sys/cdefs.h> /* __attribute_used__ */ #include <features.h> /* Program to load an ELF binary on a linux system, and run it. @@ -31,34 +32,30 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) ElfW(Sym) *symtab; int symtab_index; char *rel_addr; - struct elf_resolve *new_tpnt; char *new_addr; struct funcdesc_value funcval; struct funcdesc_value volatile *got_entry; char *symname; + struct symbol_ref sym_ref; - rel_addr = DL_RELOC_ADDR (tpnt->dynamic_info[DT_JMPREL], - tpnt->loadaddr); + rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL]; this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry); symtab_index = ELF_R_SYM(this_reloc->r_info); - symtab = (ElfW(Sym) *)(intptr_t) - DL_RELOC_ADDR (tpnt->dynamic_info[DT_SYMTAB], - tpnt->loadaddr); - strtab = DL_RELOC_ADDR (tpnt->dynamic_info[DT_STRTAB], tpnt->loadaddr); + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]; + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; + sym_ref.sym = &symtab[symtab_index]; + sym_ref.tpnt = NULL; symname= strtab + symtab[symtab_index].st_name; /* Address of GOT entry fix up */ - got_entry = (struct funcdesc_value *) - DL_RELOC_ADDR (this_reloc->r_offset, tpnt->loadaddr); + got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset); /* Get the address to be used to fill in the GOT entry. */ - new_addr = _dl_find_hash_mod(symname, &_dl_loaded_modules->symbol_scope, NULL, 0, - &new_tpnt); + new_addr = _dl_find_hash(symname, &_dl_loaded_modules->symbol_scope, NULL, 0, &sym_ref); if (!new_addr) { - new_addr = _dl_find_hash_mod(symname, NULL, NULL, 0, - &new_tpnt); + new_addr = _dl_find_hash(symname, NULL, NULL, 0, &sym_ref); if (!new_addr) { _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", _dl_progname, symname); @@ -67,7 +64,7 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) } funcval.entry_point = new_addr; - funcval.got_value = new_tpnt->loadaddr.got_value; + funcval.got_value = sym_ref.tpnt->loadaddr.got_value; #if defined (__SUPPORT_LD_DEBUG__) if (_dl_debug_bindings) @@ -103,14 +100,13 @@ _dl_parse(struct elf_resolve *tpnt, struct r_scope_elem *scope, int symtab_index; /* Now parse the relocation information */ - rpnt = (ELF_RELOC *)(intptr_t) DL_RELOC_ADDR (rel_addr, tpnt->loadaddr); + rpnt = (ELF_RELOC *) rel_addr; rel_size = rel_size / sizeof(ELF_RELOC); - symtab = (ElfW(Sym) *)(intptr_t) - DL_RELOC_ADDR (tpnt->dynamic_info[DT_SYMTAB], tpnt->loadaddr); - strtab = DL_RELOC_ADDR (tpnt->dynamic_info[DT_STRTAB], tpnt->loadaddr); + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB]; + strtab = (char *) tpnt->dynamic_info[DT_STRTAB]; - for (i = 0; i < rel_size; i++, rpnt++) { + for (i = 0; i < rel_size; i++, rpnt++) { int res; symtab_index = ELF_R_SYM(rpnt->r_info); @@ -161,24 +157,24 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, #if defined (__SUPPORT_LD_DEBUG__) unsigned long old_val; #endif + struct symbol_ref sym_ref; - reloc_addr = (unsigned long *)(intptr_t) - DL_RELOC_ADDR (rpnt->r_offset, tpnt->loadaddr); + reloc_addr = (unsigned long *) DL_RELOC_ADDR (tpnt->loadaddr, rpnt->r_offset); __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr)); reloc_type = ELF_R_TYPE(rpnt->r_info); symtab_index = ELF_R_SYM(rpnt->r_info); symbol_addr = 0; + sym_ref.sym = &symtab[symtab_index]; + sym_ref.tpnt = NULL; symname = strtab + symtab[symtab_index].st_name; if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) { - symbol_addr = (unsigned long) - DL_RELOC_ADDR (symtab[symtab_index].st_value, - tpnt->loadaddr); + symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value); symbol_tpnt = tpnt; } else { symbol_addr = (unsigned long) - _dl_find_hash_mod(symname, scope, NULL, 0, &symbol_tpnt); + _dl_find_hash(symname, scope, NULL, 0, &sym_ref); /* * We want to allow undefined references to weak symbols - this might @@ -191,6 +187,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, _dl_progname, strtab + symtab[symtab_index].st_name); _dl_exit (1); } + symbol_tpnt = sym_ref.tpnt; } #if defined (__SUPPORT_LD_DEBUG__) @@ -276,9 +273,9 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, static int _dl_do_lazy_reloc (struct elf_resolve *tpnt, - struct r_scope_elem *scope __attribute_used__, - ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute_used__, - char *strtab __attribute_used__) + struct r_scope_elem *scope __attribute__((unused)), + ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)), + char *strtab __attribute__((unused))) { int reloc_type; struct funcdesc_value volatile *reloc_addr; @@ -288,7 +285,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, #endif reloc_addr = (struct funcdesc_value *)(intptr_t) - DL_RELOC_ADDR (rpnt->r_offset, tpnt->loadaddr); + DL_RELOC_ADDR (tpnt->loadaddr, rpnt->r_offset); reloc_type = ELF_R_TYPE(rpnt->r_info); #if defined (__SUPPORT_LD_DEBUG__) @@ -299,9 +296,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, break; case R_FRV_FUNCDESC_VALUE: funcval = *reloc_addr; - funcval.entry_point = - DL_RELOC_ADDR (funcval.entry_point, - tpnt->loadaddr); + funcval.entry_point = (void *) DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point); funcval.got_value = tpnt->loadaddr.got_value; *reloc_addr = funcval; break; @@ -334,14 +329,14 @@ _dl_parse_relocation_information int _dl_parse_copy_information -(struct dyn_elf *rpnt __attribute_used__, - unsigned long rel_addr __attribute_used__, - unsigned long rel_size __attribute_used__) +(struct dyn_elf *rpnt __attribute__((unused)), + unsigned long rel_addr __attribute__((unused)), + unsigned long rel_size __attribute__((unused))) { return 0; } -#ifndef LIBDL +#ifndef IS_IN_libdl # include "../../libc/sysdeps/linux/frv/crtreloc.c" #endif diff --git a/libc/misc/elf/dl-iterate-phdr.c b/libc/misc/elf/dl-iterate-phdr.c index 5b86db0..27a9254 100644 --- a/libc/misc/elf/dl-iterate-phdr.c +++ b/libc/misc/elf/dl-iterate-phdr.c @@ -58,7 +58,7 @@ dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info, /* This entry describes this statically-linked program itself. */ struct dl_phdr_info info; int ret; -#if defined(__FDPIC__) +#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) info.dlpi_addr.map = NULL; info.dlpi_addr.got_value = NULL; #elif defined(__DSBT__) diff --git a/libc/sysdeps/linux/frv/Makefile b/libc/sysdeps/linux/frv/Makefile index 7cdb8ec..3970f62 100644 --- a/libc/sysdeps/linux/frv/Makefile +++ b/libc/sysdeps/linux/frv/Makefile @@ -1,58 +1,13 @@ # Makefile for uClibc # # Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org> -# ported to FR-V by Alexandre Oliva <aoliva(a)redhat.com> # # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# -TOPDIR=../../../../ -include $(TOPDIR)Rules.mak - -CRT_SRC := crt0.S -CRT_OBJ := crt0.o crt1.o -SCRT_OBJ := $(patsubst %,S%, $(CRT_OBJ)) - -CTOR_TARGETS := crti.o crtn.o - -SSRC := __longjmp.S setjmp.S clone.S vfork.S -SOBJ := $(patsubst %.S,%.o, $(SSRC)) - -CSRC = sysdep.c syscall.c brk.c sbrk.c __init_brk.c dl-iterate-phdr.c -CSRC += xstatconv.c stat.c stat64.c fstat.c fstat64.c lstat.c lstat64.c -COBJ := $(patsubst %.c,%.o, $(CSRC)) - -OBJS := $(SOBJ) $(COBJ) - -OBJ_LIST := ../../../obj.sysdeps.$(TARGET_ARCH) - -all: $(OBJ_LIST) - -$(OBJ_LIST): $(OBJS) $(CRT_OBJ) $(SCRT_OBJ) $(CTOR_TARGETS) - $(STRIPTOOL) -x -R .note -R .comment $^ - $(INSTALL) -d $(TOPDIR)lib/ - cp $(CRT_OBJ) $(SCRT_OBJ) $(CTOR_TARGETS) $(TOPDIR)lib/ - echo $(patsubst %, sysdeps/linux/$(TARGET_ARCH)/%, $(OBJS)) > $@ - -$(CRT_OBJ): $(CRT_SRC) crtreloc.o - $(CC) $(ASFLAGS) -DL_$* -r -nostdlib $^ -o $*.o - -crtreloc.o: crtreloc.c - $(CC) $(CFLAGS) -c $< -o $@ - -$(SCRT_OBJ): $(CRT_SRC) Scrtreloc.o - $(CC) $(ASFLAGS) $(PIEFLAG) -DL_$* -r -nostdlib $^ -o $*.o - -Scrtreloc.o: crtreloc.c - $(CC) $(CFLAGS) $(PIEFLAG) -c $< -o $@ - -$(CTOR_TARGETS): %.o : %.S - $(CC) $(ASFLAGS) $(SSP_DISABLE_FLAGS) -c $< -o $@ - -$(SOBJ): %.o : %.S - $(CC) $(ASFLAGS) -c $< -o $@ - -$(COBJ): %.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -clean: - $(RM) *.o *~ core +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/frv/Makefile.arch b/libc/sysdeps/linux/frv/Makefile.arch new file mode 100644 index 0000000..be48fd0 --- /dev/null +++ b/libc/sysdeps/linux/frv/Makefile.arch @@ -0,0 +1,11 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2006 Erik Andersen <andersen(a)uclibc.org> +# ported to FR-V by Alexandre Oliva <aoliva(a)redhat.com> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + +CSRC-y := sysdep.c syscall.c brk.c sbrk.c __init_brk.c dl-iterate-phdr.c + +SSRC-y := __longjmp.S setjmp.S clone.S vfork.S + diff --git a/libc/sysdeps/linux/frv/bits/fcntl.h b/libc/sysdeps/linux/frv/bits/fcntl.h index 0ef5f29..0581f2b 100644 --- a/libc/sysdeps/linux/frv/bits/fcntl.h +++ b/libc/sysdeps/linux/frv/bits/fcntl.h @@ -22,6 +22,9 @@ #include <sys/types.h> +#ifdef __USE_GNU +# include <bits/uio.h> +#endif /* open/fcntl - O_SYNC is only implemented on blocks devices and on files located on an ext2 file system */ diff --git a/libc/sysdeps/linux/frv/bits/kernel_types.h b/libc/sysdeps/linux/frv/bits/kernel_types.h index 8403fd3..be4fe22 100644 --- a/libc/sysdeps/linux/frv/bits/kernel_types.h +++ b/libc/sysdeps/linux/frv/bits/kernel_types.h @@ -31,6 +31,9 @@ typedef unsigned int __kernel_gid32_t; typedef unsigned short __kernel_old_uid_t; typedef unsigned short __kernel_old_gid_t; typedef long long __kernel_loff_t; +typedef __kernel_dev_t __kernel_old_dev_t; +typedef long __kernel_long_t; +typedef unsigned long __kernel_ulong_t; typedef struct { #ifdef __USE_ALL diff --git a/libc/sysdeps/linux/frv/bits/stat.h b/libc/sysdeps/linux/frv/bits/stat.h index 83f5b47..e6a1944 100644 --- a/libc/sysdeps/linux/frv/bits/stat.h +++ b/libc/sysdeps/linux/frv/bits/stat.h @@ -70,6 +70,20 @@ struct stat __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ #endif +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else unsigned long int __unused1; __time_t st_atime; /* Time of last access. */ @@ -78,7 +92,7 @@ struct stat unsigned long int __unused3; __time_t st_ctime; /* Time of last status change. */ - +#endif unsigned long long __unused4; }; @@ -103,7 +117,20 @@ struct stat64 __blksize_t st_blksize; /* Optimal block size for I/O. */ __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ - +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else unsigned long int __unused1; __time_t st_atime; /* Time of last access. */ @@ -112,7 +139,7 @@ struct stat64 unsigned long int __unused3; __time_t st_ctime; /* Time of last status change. */ - +#endif unsigned long long __unused4; }; #endif diff --git a/libc/sysdeps/linux/frv/bits/syscalls.h b/libc/sysdeps/linux/frv/bits/syscalls.h index b1f5320..b03e8db 100644 --- a/libc/sysdeps/linux/frv/bits/syscalls.h +++ b/libc/sysdeps/linux/frv/bits/syscalls.h @@ -10,128 +10,71 @@ #define SYS_ify(syscall_name) (__NR_##syscall_name) -/* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */ -#if defined _LIBC && !defined __set_errno -# define __syscall_return(type, res) \ -do { \ - unsigned long __sr2 = (res); \ - if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \ - extern int __syscall_error (int); \ - return (type) __syscall_error (__sr2); \ - } \ - return (type) (__sr2); \ -} while (0) -#else -# define __syscall_return(type, res) \ -do { \ - unsigned long __sr2 = (res); \ - if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \ - __set_errno (-__sr2); \ - __sr2 = -1; \ - } \ - return (type) (__sr2); \ -} while (0) -#endif - -#ifndef __set_errno -# define __set_errno(val) ((*__errno_location ()) = (val)) -#endif - -/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */ - -#define _syscall0(type,name) \ -type name(void) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8"); \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "=r" (__sc0) \ - : "r" (__scnum)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1,type2 arg2) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1)); \ -__syscall_return(type,__sc0); \ -} - -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1,type2 arg2,type3 arg3) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2)); \ -__syscall_return(type,__sc0); \ -} +#define INLINE_SYSCALL_NCS(name, nr, args...) \ +(__extension__ \ + ({ \ + unsigned int _inline_sys_result = INTERNAL_SYSCALL_NCS (name, , nr, args);\ + if (unlikely (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ))) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ + _inline_sys_result = (unsigned int) -1; \ + } \ + (int) _inline_sys_result; \ + }) \ +) -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3)); \ -__syscall_return(type,__sc0); \ -} +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ + ({unsigned int __internal_sys_result; \ + { \ + register int __a1 __asm__ ("gr8"); \ + register int _nr __asm__ ("gr7"); \ + LOAD_ARGS_##nr (args) \ + _nr = (name); \ + __asm__ __volatile__ ("tra gr0,gr0" \ + : "=r" (__a1) \ + : "r" (_nr) ASM_ARGS_##nr \ + : "memory"); \ + __internal_sys_result = __a1; \ + } \ + (int) __internal_sys_result; }) \ +) -#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), \ - "r" (__sc3), "r" (__sc4)); \ -__syscall_return(type,__sc0); \ -} +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int) (val) >= 0xfffff001u) -#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \ -type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \ -{ \ -register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \ -register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \ -register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \ -register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \ -register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \ -register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \ -register unsigned long __sc5 __asm__ ("gr13") = (unsigned long) arg6; \ -__asm__ __volatile__ ("tra gr0,gr0" \ - : "+r" (__sc0) \ - : "r" (__scnum), "r" (__sc1), "r" (__sc2), \ - "r" (__sc3), "r" (__sc4), "r" (__sc5)); \ -__syscall_return(type,__sc0); \ -} +#define LOAD_ARGS_0() +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + int __a1tmp = (int) (a1); \ + LOAD_ARGS_0 () \ + __a1 = __a1tmp; +#define ASM_ARGS_1 ASM_ARGS_0, "r" (__a1) +#define LOAD_ARGS_2(a1, a2) \ + int __a2tmp = (int) (a2); \ + LOAD_ARGS_1 (a1) \ + register int __a2 __asm__ ("gr8") = __a2tmp; +#define ASM_ARGS_2 ASM_ARGS_1, "r" (__a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + int __a3tmp = (int) (a3); \ + LOAD_ARGS_2 (a1, a2) \ + register int __a3 __asm__ ("gr9") = __a3tmp; +#define ASM_ARGS_3 ASM_ARGS_2, "r" (__a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + int __a4tmp = (int) (a4); \ + LOAD_ARGS_3 (a1, a2, a3) \ + register int __a4 __asm__ ("gr10") = __a4tmp; +#define ASM_ARGS_4 ASM_ARGS_3, "r" (__a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + int __v1tmp = (int) (a5); \ + LOAD_ARGS_4 (a1, a2, a3, a4) \ + register int __v1 __asm__ ("gr11") = __v1tmp; +#define ASM_ARGS_5 ASM_ARGS_4, "r" (__v1) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + int __v2tmp = (int) (a6); \ + LOAD_ARGS_5 (a1, a2, a3, a4, a5) \ + register int __v2 __asm__ ("gr12") = __v2tmp; +#define ASM_ARGS_6 ASM_ARGS_5, "r" (__v2) #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h b/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h index 293cc9b..f660fd2 100644 --- a/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h +++ b/libc/sysdeps/linux/frv/bits/uClibc_arch_features.h @@ -37,6 +37,6 @@ #define __UCLIBC_HAVE_SIGNED_ZERO__ /* only weird assemblers generally need this */ -#undef __UCLIBC_ASM_LINE_SEP__ +#define __UCLIBC_ASM_LINE_SEP__ ! #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/frv/crt0.S b/libc/sysdeps/linux/frv/crt1.S similarity index 95% rename from libc/sysdeps/linux/frv/crt0.S rename to libc/sysdeps/linux/frv/crt1.S index 59f61f9..0827fea 100644 --- a/libc/sysdeps/linux/frv/crt0.S +++ b/libc/sysdeps/linux/frv/crt1.S @@ -44,13 +44,10 @@ not, see <http://www.gnu.org/licenses/>. */ .text .global _start .type _start,%function -#if defined L_crt0 || defined L_Scrt0 || ! defined __UCLIBC_CTOR_DTOR__ - .type __uClibc_main,%function -#else .weak _init .weak _fini - .type __uClibc_start_main,%function -#endif + .type __uClibc_main,%function + _start: /* Make sure the stack pointer is properly aligned. Save the original value in gr21 such that we can get to arguments and @@ -104,7 +101,7 @@ _start: ld.p @(gr11, gr17), gr11 mov gr17, gr15 ld.p @(gr12, gr17), gr12 - call __uClibc_start_main + call __uClibc_main #else mov.p gr17, gr15 call __uClibc_main diff --git a/libc/sysdeps/linux/frv/crtreloc.c b/libc/sysdeps/linux/frv/crtreloc.c index cd07170..b1d5423 100644 --- a/libc/sysdeps/linux/frv/crtreloc.c +++ b/libc/sysdeps/linux/frv/crtreloc.c @@ -25,6 +25,8 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; see the file COPYING.LIB. If not, see <http://www.gnu.org/licenses/>. */ +#ifdef __FRV_FDPIC__ + #include <sys/types.h> #include <link.h> @@ -61,7 +63,7 @@ reloc_range_indirect (void ***p, void ***e, /* Call __reloc_range_indirect for the given range except for the last entry, whose contents are only relocated. It's expected to hold the GOT value. */ -void* attribute_hidden +attribute_hidden void* __self_reloc (const struct elf32_fdpic_loadmap *map, void ***p, void ***e) { @@ -72,48 +74,4 @@ __self_reloc (const struct elf32_fdpic_loadmap *map, return __reloc_pointer (*p, map); } - -#if 0 -/* These are other functions that might be useful, but that we don't - need. */ - -/* Remap pointers in [p,e). */ -static __always_inline void** -reloc_range (void **p, void **e, - const struct elf32_fdpic_loadmap *map) -{ - while (p < e) - { - *p = __reloc_pointer (*p, map); - p++; - } - return p; -} - -/* Remap p, adjust e by the same offset, then map the pointers in the - range determined by them. */ -void attribute_hidden -__reloc_range (const struct elf32_fdpic_loadmap *map, - void **p, void **e) -{ - void **old = p; - - p = __reloc_pointer (p, map); - e += p - old; - reloc_range (p, e, map); -} - -/* Remap p, adjust e by the same offset, then map pointers referenced - by the (unadjusted) pointers in the range. Return the relocated - value of the last pointer in the range. */ -void* attribute_hidden -__reloc_range_indirect (const struct elf32_fdpic_loadmap *map, - void ***p, void ***e) -{ - void ***old = p; - - p = __reloc_pointer (p, map); - e += p - old; - return reloc_range_indirect (p, e, map); -} -#endif +#endif /* __FRV_FDPIC__ */ diff --git a/libc/sysdeps/linux/frv/jmpbuf-unwind.h b/libc/sysdeps/linux/frv/jmpbuf-unwind.h index b58f3f0..c22ab24 100644 --- a/libc/sysdeps/linux/frv/jmpbuf-unwind.h +++ b/libc/sysdeps/linux/frv/jmpbuf-unwind.h @@ -10,5 +10,3 @@ containing a local variable at ADDRESS. */ #define _JMPBUF_UNWINDS(jmpbuf, address) \ ((void *) (address) < (void *) (jmpbuf)->__sp) - -#endif /* bits/setjmp.h */ diff --git a/libc/sysdeps/linux/frv/syscall.c b/libc/sysdeps/linux/frv/syscall.c index 68fe556..a98cf38 100644 --- a/libc/sysdeps/linux/frv/syscall.c +++ b/libc/sysdeps/linux/frv/syscall.c @@ -37,5 +37,5 @@ long syscall(long sysnum, long arg1, long arg2, long arg3, : "+r" (__sc0) : "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5)); - __syscall_return(long,__sc0); + return (long) __sc0; } hooks/post-receive -- uClibc-ng - small C library for embedded systems

8 years, 2 months

uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.12-2-gb499fe6

by wbx＠helium.waldemar-brodkorb.de

8 years, 2 months

[PATCH] libdl: dlopen() mustn't forget RTLD_NODELETE flag

by Leonid Lisovskiy

If RTLD_NODELETE is passed to dlopen() rather than set on shared library itself, flag propagation to rtld_flags is missed. Test-case taken from glibc. Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com> --- ldso/libdl/libdl.c | 6 +- test/dlopen/Makefile.in | 9 ++- test/dlopen/nodelete.c | 205 ++++++++++++++++++++++++++++++++++++++++++++++++ test/dlopen/nodelmod1.c | 10 +++ test/dlopen/nodelmod2.c | 10 +++ test/dlopen/nodelmod3.c | 8 ++ test/dlopen/nodelmod4.c | 10 +++ 7 files changed, 254 insertions(+), 4 deletions(-) create mode 100644 test/dlopen/nodelete.c create mode 100644 test/dlopen/nodelmod1.c create mode 100644 test/dlopen/nodelmod2.c create mode 100644 test/dlopen/nodelmod3.c create mode 100644 test/dlopen/nodelmod4.c diff --git a/ldso/libdl/libdl.c b/ldso/libdl/libdl.c index 2c4b064..08619bc 100644 --- a/ldso/libdl/libdl.c +++ b/ldso/libdl/libdl.c @@ -394,7 +394,7 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr) from) dyn_chain = (struct dyn_elf *) malloc(sizeof(struct dyn_elf)); memset(dyn_chain, 0, sizeof(struct dyn_elf)); dyn_chain->dyn = tpnt; - tpnt->rtld_flags |= (flag & RTLD_GLOBAL); + tpnt->rtld_flags |= (flag & (RTLD_GLOBAL|RTLD_NODELETE)); dyn_chain->next_handle = _dl_handles; _dl_handles = dyn_ptr = dyn_chain; @@ -407,7 +407,7 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr) from) dyn_chain->init_fini.init_fini = handle->init_fini.init_fini; dyn_chain->init_fini.nlist = handle->init_fini.nlist; for (i = 0; i < dyn_chain->init_fini.nlist; i++) - dyn_chain->init_fini.init_fini[i]->rtld_flags |= (flag & RTLD_GLOBAL); + dyn_chain->init_fini.init_fini[i]->rtld_flags |= (flag & (RTLD_GLOBAL|RTLD_NODELETE)); dyn_chain->next = handle->next; break; } @@ -439,7 +439,7 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr) from) if (!tpnt1) goto oops; - tpnt1->rtld_flags |= (flag & RTLD_GLOBAL); + tpnt1->rtld_flags |= (flag & (RTLD_GLOBAL|RTLD_NODELETE)); /* This list is for dlsym() and relocation */ dyn_ptr->next = (struct dyn_elf *) malloc(sizeof(struct dyn_elf)); diff --git a/test/dlopen/Makefile.in b/test/dlopen/Makefile.in index 85996de..a02b2b9 100644 --- a/test/dlopen/Makefile.in +++ b/test/dlopen/Makefile.in @@ -5,7 +5,7 @@ export UCLIBC_ONLY := 1 TESTS := dltest dltest2 dlstatic test1 test2 test3 dlundef dlafk dladdr \ - testscope + testscope nodelete ifneq ($(HAVE_SHARED),y) TESTS_DISABLED := test3 @@ -63,3 +63,10 @@ LDFLAGS_libtest3.so := -lpthread -Wl,-rpath,. LDFLAGS_libC.so := -ldl LDFLAGS_libB.so := ./libC.so -Wl,-rpath,. LDFLAGS_libA.so := ./libB.so -Wl,-rpath,. + +nodelete: nodelmod1.so nodelmod2.so nodelmod3.so +nodelmod3.so: nodelmod4.so +LDFLAGS_nodelete := -rdynamic -ldl +LDFLAGS_nodelmod1.so := -Wl,-z,nodelete +LDFLAGS_nodelmod3.so := ./nodelmod4.so +LDFLAGS_nodelmod4.so := -Wl,-z,nodelete diff --git a/test/dlopen/nodelete.c b/test/dlopen/nodelete.c new file mode 100644 index 0000000..07ff961 --- /dev/null +++ b/test/dlopen/nodelete.c @@ -0,0 +1,205 @@ +#include <dlfcn.h> +#include <setjmp.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> + + +static sigjmp_buf jmpbuf; + + +int fini_ran; + + +static void +__attribute__ ((noreturn)) +handler (int sig) +{ + siglongjmp (jmpbuf, 1); +} + + +#define TEST_FUNCTION do_test () +static int +do_test (void) +{ + /* We are testing the two possibilities to mark an object as not deletable: + - marked on the linker commandline with `-z nodelete' + - with the RTLD_NODELETE flag at dlopen()-time. + + The test we are performing should be safe. We are loading the objects, + get the address of variables in the respective object, unload the object + and then try to read the variable. If the object is unloaded this + should lead to an segmentation fault. */ + void *p; + struct sigaction sa; + + sa.sa_handler = handler; + sigfillset (&sa.sa_mask); + sa.sa_flags = SA_RESTART; + + if (sigaction (SIGSEGV, &sa, NULL) == -1) + puts ("cannot install signal handler: %m"); + + p = dlopen ("nodelmod1.so", RTLD_LAZY); + if (p == NULL) + { + printf ("failed to load \"nodelmod1.so\": %s\n", dlerror ()); + exit (1); + } + else + { + int *varp; + + varp = dlsym (p, "var1"); + if (varp == NULL) + { + puts ("failed to get address of \"var1\" in \"nodelmod1.so\""); + exit (1); + } + else + { + *varp = 20000720; + + /* Now close the object. */ + fini_ran = 0; + if (dlclose (p) != 0) + { + puts ("failed to close \"nodelmod1.so\""); + exit (1); + } + else if (! sigsetjmp (jmpbuf, 1)) + { + /* Access the variable again. */ + if (*varp != 20000720) + { + puts ("\"var1\" value not correct"); + exit (1); + } + else if (fini_ran != 0) + { + puts ("destructor of \"nodelmod1.so\" ran"); + exit (1); + } + else + puts ("-z nodelete test succeeded"); + } + else + { + /* We caught an segmentation fault. */ + puts ("\"nodelmod1.so\" got deleted!"); + exit (1); + } + } + } + + p = dlopen ("nodelmod2.so", RTLD_LAZY | RTLD_NODELETE); + if (p == NULL) + { + printf ("failed to load \"nodelmod2.so\": %s\n", dlerror ()); + exit (1); + } + else + { + int *varp; + + varp = dlsym (p, "var2"); + if (varp == NULL) + { + puts ("failed to get address of \"var2\" in \"nodelmod2.so\""); + exit (1); + } + else + { + *varp = 42; + + /* Now close the object. */ + fini_ran = 0; + if (dlclose (p) != 0) + { + puts ("failed to close \"nodelmod2.so\""); + exit (1); + } + else if (! sigsetjmp (jmpbuf, 1)) + { + /* Access the variable again. */ + if (*varp != 42) + { + puts ("\"var2\" value not correct"); + exit (1); + } + else if (fini_ran != 0) + { + puts ("destructor of \"nodelmod2.so\" ran"); + exit (1); + } + else + puts ("RTLD_NODELETE test succeeded"); + } + else + { + /* We caught an segmentation fault. */ + puts ("\"nodelmod2.so\" got deleted!"); + exit (1); + } + } + } + + p = dlopen ("nodelmod3.so", RTLD_LAZY); + if (p == NULL) + { + printf ("failed to load \"nodelmod3.so\": %s\n", dlerror ()); + exit (1); + } + else + { + int *(*fctp) (void); + + fctp = dlsym (p, "addr"); + if (fctp == NULL) + { + puts ("failed to get address of \"addr\" in \"nodelmod3.so\""); + exit (1); + } + else + { + int *varp = fctp (); + + *varp = -1; + + /* Now close the object. */ + fini_ran = 0; + if (dlclose (p) != 0) + { + puts ("failed to close \"nodelmod3.so\""); + exit (1); + } + else if (! sigsetjmp (jmpbuf, 1)) + { + /* Access the variable again. */ + if (*varp != -1) + { + puts ("\"var_in_mod4\" value not correct"); + exit (1); + } + else if (fini_ran != 0) + { + puts ("destructor of \"nodelmod4.so\" ran"); + exit (1); + } + else + puts ("-z nodelete in dependency succeeded"); + } + else + { + /* We caught an segmentation fault. */ + puts ("\"nodelmod4.so\" got deleted!"); + exit (1); + } + } + } + + return 0; +} + +#include "../test-skeleton.c" diff --git a/test/dlopen/nodelmod1.c b/test/dlopen/nodelmod1.c new file mode 100644 index 0000000..51be080 --- /dev/null +++ b/test/dlopen/nodelmod1.c @@ -0,0 +1,10 @@ +extern int fini_ran; + +int var1 = 42; + +static void +__attribute__ ((__destructor__)) +destr (void) +{ + fini_ran = 1; +} diff --git a/test/dlopen/nodelmod2.c b/test/dlopen/nodelmod2.c new file mode 100644 index 0000000..ff2ffc2 --- /dev/null +++ b/test/dlopen/nodelmod2.c @@ -0,0 +1,10 @@ +extern int fini_ran; + +int var2 = 100; + +static void +__attribute__ ((__destructor__)) +destr (void) +{ + fini_ran = 1; +} diff --git a/test/dlopen/nodelmod3.c b/test/dlopen/nodelmod3.c new file mode 100644 index 0000000..817c94d --- /dev/null +++ b/test/dlopen/nodelmod3.c @@ -0,0 +1,8 @@ +extern int var_in_mod4; +extern int *addr (void); + +int * +addr (void) +{ + return &var_in_mod4; +} diff --git a/test/dlopen/nodelmod4.c b/test/dlopen/nodelmod4.c new file mode 100644 index 0000000..d7fa893 --- /dev/null +++ b/test/dlopen/nodelmod4.c @@ -0,0 +1,10 @@ +extern int fini_ran; + +int var_in_mod4 = 99; + +static void +__attribute__ ((__destructor__)) +destr (void) +{ + fini_ran = 1; +} -- 1.8.5.6

8 years, 2 months

Add __adjtimex() ?

by Leonid Lisovskiy

uClibc-ng provides adjtimex() function only, but some programs(like ntpd) requires it's alias - __adjtimex(). There were two methods to implement it: 1) OpenWRT way - just a simple #define https://dev.openwrt.org/browser/trunk/toolchain/uClibc/patches-0.9.33.2/120… 2) glibc way - do it via strong alias Should we implement __adjtimex() in uClibc-ng? Which way is acceptable for mainstream? Regards, Leonid

8 years, 2 months

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devel February 2016