diff options
Diffstat (limited to 'ldso')
47 files changed, 1689 insertions, 278 deletions
diff --git a/ldso/include/dl-auxvt.h b/ldso/include/dl-auxvt.h new file mode 100644 index 000000000..29eda6eb3 --- /dev/null +++ b/ldso/include/dl-auxvt.h @@ -0,0 +1,9 @@ +#ifndef _DL_AUXVT_H +#define _DL_AUXVT_H + +#define AUX_MAX_AT_ID 40 +extern ElfW(auxv_t) _dl_auxvt[AUX_MAX_AT_ID]; /* Cache frequently accessed auxiliary vector entries */ +extern ElfW(auxv_t) *_dl_auxv_start; /* Start of the auxiliary vector */ + +#endif /* _DL_AUXVT_H */ + diff --git a/ldso/include/dl-defs.h b/ldso/include/dl-defs.h index f27112a11..e900640bb 100644 --- a/ldso/include/dl-defs.h +++ b/ldso/include/dl-defs.h @@ -72,7 +72,7 @@ typedef struct { #endif #ifdef _LIBC -#ifndef __ARCH_HAS_NO_SHARED__ +#ifndef __ARCH_HAS_NO_LDSO__ /* arch specific defines */ #include <dl-sysdep.h> #endif diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h index 2b99958d9..832f6b1dd 100644 --- a/ldso/include/dl-elf.h +++ b/ldso/include/dl-elf.h @@ -250,5 +250,46 @@ unsigned int __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info (((X) & PF_W) ? PROT_WRITE : 0) | \ (((X) & PF_X) ? PROT_EXEC : 0)) +/* FDPIC ABI don't use relative relocations */ +#if !defined(__FDPIC__) +/* Apply relocations in DT_RELR format */ +#define DL_DO_RELOCATE_RELR(load_addr, relr_start, relr_end) \ + do { \ + const ElfW(Relr) *relr = 0; \ + ElfW(Addr) *relr_reloc_addr = 0; \ + for (relr = relr_start; relr < relr_end; relr++) { \ + ElfW(Relr) relr_entry = *relr; \ + if (!(relr_entry & 1)) \ + { \ + relr_reloc_addr = (ElfW(Addr) *)DL_RELOC_ADDR(load_addr, relr_entry); \ + *relr_reloc_addr = (ElfW(Addr))DL_RELOC_ADDR(load_addr, relr_reloc_addr); \ + relr_reloc_addr++; \ + } \ + else \ + { \ + for (long int i = 0; (relr_entry >>= 1) != 0; ++i) { \ + if ((relr_entry & 1) != 0) \ + relr_reloc_addr[i] = (ElfW(Addr))DL_RELOC_ADDR(load_addr, relr_reloc_addr[i]); \ + } \ + relr_reloc_addr += CHAR_BIT * sizeof(ElfW(Relr)) - 1; \ + } \ + } \ + } while (0) + +/* The macro to prepare data for the above DL_DO_RELOCATE_RELR */ +#define DL_RELOCATE_RELR(dyn) \ + do { \ + if (dyn->dynamic_info[DT_RELRENT]) \ + _dl_assert(dyn->dynamic_info[DT_RELRENT] == sizeof(ElfW(Relr))); \ + if (dyn->dynamic_info[DT_RELR] && \ + dyn->dynamic_info[DT_RELRSZ]) { \ + ElfW(Relr) *relr_start = (ElfW(Relr) *)((ElfW(Addr))dyn->loadaddr + (ElfW(Addr))dyn->dynamic_info[DT_RELR]); \ + ElfW(Relr) *relr_end = (ElfW(Relr) *)((const char *)relr_start + dyn->dynamic_info[DT_RELRSZ]); \ + _dl_if_debug_dprint("Relocating DT_RELR in %s: start:%p, end:%p\n", \ + dyn->libname, (void *)relr_start, (void *)relr_end); \ + DL_DO_RELOCATE_RELR(dyn->loadaddr, relr_start, relr_end); \ + } \ + } while (0) +#endif /* __FDPIC__ */ #endif /* _DL_ELF_H */ diff --git a/ldso/include/dl-string.h b/ldso/include/dl-string.h index bf6997188..4a66161e0 100644 --- a/ldso/include/dl-string.h +++ b/ldso/include/dl-string.h @@ -103,7 +103,7 @@ static __always_inline char * _dl_strstr(const char *s1, const char *s2) do { if (!*p) - return (char *) s1;; + return (char *) s1; if (*p == *s) { ++p; ++s; @@ -257,7 +257,7 @@ static __always_inline char * _dl_simple_ltoahex(char *local, unsigned long i) /* On some (wierd) arches, none of this stuff works at all, so * disable the whole lot... */ /* The same applies for ARM FDPIC at least for the moment. */ -#if defined(__mips__) || (__FDPIC__) +#if defined(__mips__) || defined(__FDPIC__) # define SEND_STDERR(X) # define SEND_ADDRESS_STDERR(X, add_a_newline) diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h index 2e8bb3630..c143b8d45 100644 --- a/ldso/include/dl-syscall.h +++ b/ldso/include/dl-syscall.h @@ -11,8 +11,13 @@ * been dynamicly linked in yet. */ #include "sys/syscall.h" extern int _dl_errno; + +#ifdef UCLIBC_LDSO #undef __set_errno #define __set_errno(X) {(_dl_errno) = (X);} +#endif + +#include <linux/version.h> /* Pull in the arch specific syscall implementation */ #include <dl-syscalls.h> @@ -20,7 +25,7 @@ extern int _dl_errno; #define _SYS_MMAN_H 1 #include <bits/mman.h> -#ifdef __ARCH_HAS_DEPRECATED_SYSCALLS__ +#if defined(__ARCH_HAS_DEPRECATED_SYSCALLS__) && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) /* Pull in whatever this particular arch's kernel thinks the kernel version of * struct stat should look like. It turns out that each arch has a different * opinion on the subject, and different kernel revs use different names... */ @@ -116,7 +121,7 @@ static __always_inline _syscall3(unsigned long, _dl_read, int, fd, static __always_inline _syscall3(int, _dl_mprotect, const void *, addr, unsigned long, len, int, prot) -#if defined __NR_fstatat64 && !defined __NR_stat +#if defined __NR_fstatat64 && !defined __NR_stat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) # define __NR__dl_fstatat64 __NR_fstatat64 static __always_inline _syscall4(int, _dl_fstatat64, int, fd, const char *, fn, struct stat *, stat, int, flags) @@ -126,7 +131,7 @@ static __always_inline int _dl_stat(const char *file_name, { return _dl_fstatat64(AT_FDCWD, file_name, buf, 0); } -#elif defined __NR_newfstatat && !defined __NR_stat +#elif defined __NR_newfstatat && !defined __NR_stat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) # define __NR__dl_newfstatat __NR_newfstatat static __always_inline _syscall4(int, _dl_newfstatat, int, fd, const char *, fn, struct stat *, stat, int, flags) @@ -136,7 +141,7 @@ static __always_inline int _dl_stat(const char *file_name, { return _dl_newfstatat(AT_FDCWD, file_name, buf, 0); } -#elif defined __NR_stat +#elif defined __NR_stat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__) || (LINUX_VERSION_CODE <= KERNEL_VERSION(5,1,0))) # define __NR__dl_stat __NR_stat static __always_inline _syscall2(int, _dl_stat, const char *, file_name, struct stat *, buf) @@ -160,15 +165,15 @@ static __always_inline int _dl_stat(const char *file_name, } #endif -#if defined __NR_fstat64 && !defined __NR_fstat +#if defined __NR_fstat64 && !defined __NR_fstat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) # define __NR__dl_fstat __NR_fstat64 static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf) -#elif defined __NR_fstat +#elif defined __NR_fstat && !defined __UCLIBC_USE_TIME64__ || defined(__sparc__) # define __NR__dl_fstat __NR_fstat static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf) #elif defined __NR_statx && defined __UCLIBC_HAVE_STATX__ # define __NR__dl_fstatx __NR_statx -static __always_inline _syscall5(int, _dl_fstatx, int, fd, const char *, file_name, int, flags, unsigned int, mask, struct stat *, buf); +static __always_inline _syscall5(int, _dl_fstatx, int, fd, const char *, file_name, int, flags, unsigned int, mask, struct statx *, buf); static __always_inline int _dl_fstat(int fd, struct stat *buf) diff --git a/ldso/include/ldso.h b/ldso/include/ldso.h index f19957d1d..061d8a536 100644..100755 --- a/ldso/include/ldso.h +++ b/ldso/include/ldso.h @@ -48,7 +48,7 @@ /* Pull in the MIN macro */ #include <sys/param.h> /* Pull in the ldso syscalls and string functions */ -#ifndef __ARCH_HAS_NO_SHARED__ +#if !defined(__ARCH_HAS_NO_SHARED__) || !defined(__ARCH_HAS_NO_LDSO__) #include <dl-syscall.h> #include <dl-string.h> /* Now the ldso specific headers */ @@ -109,6 +109,7 @@ extern char *_dl_debug_reloc; extern char *_dl_debug_detail; extern char *_dl_debug_nofixups; extern char *_dl_debug_bindings; +extern char *_dl_debug_vdso; extern int _dl_debug_file; # define __dl_debug_dprint(fmt, args...) \ _dl_dprintf(_dl_debug_file, "%s:%i: " fmt, __func__, __LINE__, ## args); @@ -148,6 +149,7 @@ extern int _dl_debug_file; #define NULL ((void *) 0) #endif + extern void *_dl_malloc(size_t size); extern void *_dl_calloc(size_t __nmemb, size_t __size); extern void *_dl_realloc(void *__ptr, size_t __size); @@ -176,7 +178,7 @@ extern void _dl_dprintf(int, const char *, ...); #endif extern void *_dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr, - ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv + char **envp, char **argv DL_GET_READY_TO_RUN_EXTRA_PARMS); #ifdef HAVE_DL_INLINES_H @@ -185,6 +187,12 @@ extern void *_dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE loa #else /* __ARCH_HAS_NO_SHARED__ */ #include <dl-defs.h> +#include <dl-elf.h> + #endif +#include <dl-auxvt.h> + +void load_vdso(void *sys_info_ehdr, char **envp ); + #endif /* _LDSO_H */ diff --git a/ldso/ldso/Makefile.in b/ldso/ldso/Makefile.in index 4f2a18454..0f8ed140d 100644 --- a/ldso/ldso/Makefile.in +++ b/ldso/ldso/Makefile.in @@ -19,6 +19,11 @@ ifeq ($(TARGET_ARCH),arm) CFLAGS-rtld += -fno-unwind-tables -fno-asynchronous-unwind-tables endif +ifeq ($(TARGET_ARCH),bfin) +# for gcc 10.5.0 and above we need to use -ffreestanding +CFLAGS-rtld += -ffreestanding +endif + CFLAGS-rtld += -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) -I$(top_srcdir)ldso/include -I$(top_srcdir)ldso/ldso CFLAGS-rtld += -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" @@ -38,7 +43,8 @@ CFLAGS-ldso.c += -DLDSO_MULTILIB_DIR=\"$(MULTILIB_DIR)\" endif ifeq ($(TARGET_ARCH),arc) -CFLAGS-ldso.c += -mno-long-calls +$(eval $(call check-gcc-var,-mno-long-calls)) +CFLAGS-ldso.c += $(CFLAGS_-mno-long-calls) endif LDFLAGS-$(UCLIBC_FORMAT_DSBT_ELF)-$(UCLIBC_LDSO_NAME).so := -Wl,--dsbt-index=1 @@ -62,14 +68,15 @@ ldso_FULL_NAME := $(UCLIBC_LDSO_NAME)-$(VERSION).so $(UCLIBC_LDSO_NAME)_DIR := $(top_srcdir)ldso/ldso $(UCLIBC_LDSO_NAME)_OUT := $(top_builddir)ldso/ldso -$(UCLIBC_LDSO_NAME)_CSRC := $($(UCLIBC_LDSO_NAME)_DIR)/ldso.c +$(UCLIBC_LDSO_NAME)_CSRC := $($(UCLIBC_LDSO_NAME)_DIR)/ldso.c $($(UCLIBC_LDSO_NAME)_DIR)/dl-vdso.c # prerequesites $($(UCLIBC_LDSO_NAME)_OUT)/ldso.o $($(UCLIBC_LDSO_NAME)_OUT)/ldso.oS: \ $($(UCLIBC_LDSO_NAME)_DIR)/dl-debug.c \ $($(UCLIBC_LDSO_NAME)_DIR)/dl-startup.c \ $($(UCLIBC_LDSO_NAME)_DIR)/dl-array.c \ $($(UCLIBC_LDSO_NAME)_DIR)/dl-hash.c \ - $($(UCLIBC_LDSO_NAME)_DIR)/dl-elf.c + $($(UCLIBC_LDSO_NAME)_DIR)/dl-elf.c \ + $($(UCLIBC_LDSO_NAME)_DIR)/dl-vdso.c $(UCLIBC_LDSO_NAME)_COBJ := $(patsubst $($(UCLIBC_LDSO_NAME)_DIR)/%.c,$($(UCLIBC_LDSO_NAME)_OUT)/%.o,$($(UCLIBC_LDSO_NAME)_CSRC)) $(UCLIBC_LDSO_NAME)_SSRC := $(wildcard $($(UCLIBC_LDSO_NAME)_DIR)/$(TARGET_ARCH)/*.S) diff --git a/ldso/ldso/aarch64/dl-syscalls.h b/ldso/ldso/aarch64/dl-syscalls.h index f40c4fd31..7f3566d6b 100644 --- a/ldso/ldso/aarch64/dl-syscalls.h +++ b/ldso/ldso/aarch64/dl-syscalls.h @@ -1 +1,38 @@ -/* stub for arch-specific syscall issues */ +/* stub for arch-specific syscall issues/specific implementations */ +#ifndef _DL_SYSCALLS_H +#define _DL_SYSCALLS_H + +#ifdef __ARCH_VDSO_GETTIMEOFDAY_NAME +#undef __ARCH_VDSO_GETTIMEOFDAY_NAME +#endif + +#ifdef __ARCH_VDSO_CLOCK_GETTIME_NAME +#undef __ARCH_VDSO_CLOCK_GETTIME_NAME +#endif + +#define __ARCH_VDSO_GETTIMEOFDAY_NAME "__kernel_gettimeofday" +#define __ARCH_VDSO_CLOCK_GETTIME_NAME "__kernel_clock_gettime" + +#if defined(__VDSO_SUPPORT__) && !defined(UCLIBC_LDSO) + +#include "../dl-vdso-calls.h" + +static int __attribute__ ((used)) __aarch64_vdso_clock_gettime(clockid_t clock_id, struct timespec *tp); +static int __attribute__ ((used)) __aarch64_vdso_clock_gettime(clockid_t clock_id, struct timespec *tp) +{ + return __generic_vdso_clock_gettime(clock_id, tp); +} + +static int __attribute__ ((used)) __aarch64_vdso_gettimeofday(struct timeval *tv, __timezone_ptr_t tz); +static int __attribute__ ((used)) __aarch64_vdso_gettimeofday(struct timeval *tv, __timezone_ptr_t tz) +{ + return __generic_vdso_gettimeofday(tv, tz); +} + +#define ARCH_VDSO_GETTIMEOFDAY(tv, tz) __aarch64_vdso_gettimeofday(tv, tz) +#define ARCH_VDSO_CLOCK_GETTIME(clock_id, tp) __aarch64_vdso_clock_gettime(clock_id, tp) + +#endif /* defined(__VDSO_SUPPORT__) && !defined(UCLIBC_LDSO) */ + +#endif /* _DL_SYSCALLS_H */ + diff --git a/ldso/ldso/aarch64/dl-sysdep.h b/ldso/ldso/aarch64/dl-sysdep.h index 6d9d2c1fb..3466920d9 100644 --- a/ldso/ldso/aarch64/dl-sysdep.h +++ b/ldso/ldso/aarch64/dl-sysdep.h @@ -54,28 +54,21 @@ unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); || (type) == R_AARCH64_TLSDESC) * ELF_RTYPE_CLASS_PLT) \ | (((type) == R_AARCH64_COPY) * ELF_RTYPE_CLASS_COPY)) -/* Return the link-time address of _DYNAMIC. Conveniently, this is the - first element of the GOT. */ -extern const ElfW(Addr) _GLOBAL_OFFSET_TABLE_[] attribute_hidden; -static __always_inline ElfW(Addr) __attribute__ ((unused)) -elf_machine_dynamic (void) -{ - return _GLOBAL_OFFSET_TABLE_[0]; -} - /* Return the run-time load address of the shared object. */ static __always_inline ElfW(Addr) __attribute__ ((unused)) elf_machine_load_address (void) { - /* To figure out the load address we use the definition that for any symbol: - dynamic_addr(symbol) = static_addr(symbol) + load_addr - - _DYNAMIC sysmbol is used here as its link-time address stored in - the special unrelocated first GOT entry. */ + extern const ElfW(Ehdr) __ehdr_start attribute_hidden; + return (ElfW(Addr)) &__ehdr_start; +} - extern ElfW(Dyn) _DYNAMIC[] attribute_hidden; - return (ElfW(Addr)) &_DYNAMIC - elf_machine_dynamic (); +/* Return the link-time address of _DYNAMIC. */ +static __always_inline ElfW(Addr) __attribute__ ((unused)) +elf_machine_dynamic (void) +{ + extern ElfW(Dyn) _DYNAMIC[] attribute_hidden; + return (ElfW(Addr)) _DYNAMIC - elf_machine_load_address (); } static __always_inline void diff --git a/ldso/ldso/aarch64/elfinterp.c b/ldso/ldso/aarch64/elfinterp.c index adabafaad..9365569cc 100644 --- a/ldso/ldso/aarch64/elfinterp.c +++ b/ldso/ldso/aarch64/elfinterp.c @@ -238,6 +238,12 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, } } break; + case R_AARCH64_TLS_DTPMOD: + *reloc_addr = tls_tpnt->l_tls_modid; + break; + case R_AARCH64_TLS_DTPREL: + *reloc_addr = symbol_addr + rpnt->r_addend; + break; #endif default: return -1; /*call _dl_exit(1) */ @@ -253,6 +259,8 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, return 0; } +#undef __AARCH64_LAZY_RELOC_WORKS +#ifdef __AARCH64_LAZY_RELOC_WORKS static int _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab) @@ -303,11 +311,17 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, return 0; } +#endif void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size) { +#ifdef __AARCH64_LAZY_RELOC_WORKS (void)_dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc); +#else + _dl_parse_relocation_information(rpnt, &_dl_loaded_modules->symbol_scope, + rel_addr, rel_size); +#endif } int _dl_parse_relocation_information(struct dyn_elf *rpnt, diff --git a/ldso/ldso/arc/dl-sysdep.h b/ldso/ldso/arc/dl-sysdep.h index ed8b37205..c8915511a 100644 --- a/ldso/ldso/arc/dl-sysdep.h +++ b/ldso/ldso/arc/dl-sysdep.h @@ -75,6 +75,9 @@ do { \ #elif defined(__HS__) #define MAGIC1 EM_ARCV2 #define ELF_TARGET "ARCv2" /* For error messages */ +#elif defined(__ARC64_ARCH32__) +#define MAGIC1 EM_ARCV3_32 +#define ELF_TARGET "ARCv3_32" /* For error messages */ #endif #undef MAGIC2 diff --git a/ldso/ldso/arc/resolve.S b/ldso/ldso/arc/resolve.S index 891f66b97..2b66c69cb 100644 --- a/ldso/ldso/arc/resolve.S +++ b/ldso/ldso/arc/resolve.S @@ -4,6 +4,7 @@ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. */ +#include <asm.h> #include <sysdep.h> #include <sys/syscall.h> @@ -12,30 +13,30 @@ ; r10-r12 are already clobbered by PLTn, PLT0 thus neednot be saved .macro SAVE_CALLER_SAVED - push_s r0 - push_s r1 - push_s r2 - push_s r3 - st.a r4, [sp, -4] - st.a r5, [sp, -4] - st.a r6, [sp, -4] - st.a r7, [sp, -4] - st.a r8, [sp, -4] - st.a r9, [sp, -4] - push_s blink + PUSHR_S r0 + PUSHR_S r1 + PUSHR_S r2 + PUSHR_S r3 + PUSHR r4 + PUSHR r5 + PUSHR r6 + PUSHR r7 + PUSHR r8 + PUSHR r9 + PUSHR_S blink .endm .macro RESTORE_CALLER_SAVED_BUT_R0 - ld.ab blink,[sp, 4] - ld.ab r9, [sp, 4] - ld.ab r8, [sp, 4] - ld.ab r7, [sp, 4] - ld.ab r6, [sp, 4] - ld.ab r5, [sp, 4] - ld.ab r4, [sp, 4] - pop_s r3 - pop_s r2 - pop_s r1 + POPR blink + POPR r9 + POPR r8 + POPR r7 + POPR r6 + POPR r5 + POPR r4 + POPR_S r3 + POPR_S r2 + POPR_S r1 .endm ; Upon entry, PLTn, which led us here, sets up the following regs @@ -53,5 +54,5 @@ ENTRY(_dl_linux_resolve) RESTORE_CALLER_SAVED_BUT_R0 j_s.d [r0] ; r0 has resolved function addr - pop_s r0 ; restore first arg to resolved call + POPR_S r0 ; restore first arg to resolved call END(_dl_linux_resolve) diff --git a/ldso/ldso/arm/dl-startup.h b/ldso/ldso/arm/dl-startup.h index cacd461e1..d00e7b053 100644 --- a/ldso/ldso/arm/dl-startup.h +++ b/ldso/ldso/arm/dl-startup.h @@ -301,3 +301,5 @@ int raise(int sig) _dl_exit(1); } #endif /* __FDPIC__ */ + +#define DL_UPDATE_LOADADDR_HDR(LOADADDR, ADDR, PHDR) diff --git a/ldso/ldso/arm/dl-syscalls.h b/ldso/ldso/arm/dl-syscalls.h index f40c4fd31..5f6f7a883 100644 --- a/ldso/ldso/arm/dl-syscalls.h +++ b/ldso/ldso/arm/dl-syscalls.h @@ -1 +1,28 @@ -/* stub for arch-specific syscall issues */ +/* stub for arch-specific syscall issues/specific implementations */ + +#ifndef _DL_SYSCALLS_H +#define _DL_SYSCALLS_H + +#if defined(__VDSO_SUPPORT__) && !defined(UCLIBC_LDSO) + +#include "../dl-vdso-calls.h" + +static int __attribute__ ((used)) __arm_vdso_clock_gettime(clockid_t clock_id, struct timespec *tp); +static int __attribute__ ((used)) __arm_vdso_clock_gettime(clockid_t clock_id, struct timespec *tp) +{ + return __generic_vdso_clock_gettime(clock_id, tp); +} + +static int __attribute__ ((used)) __arm_vdso_gettimeofday(struct timeval *tv, __timezone_ptr_t tz); +static int __attribute__ ((used)) __arm_vdso_gettimeofday(struct timeval *tv, __timezone_ptr_t tz) +{ + return __generic_vdso_gettimeofday(tv, tz); +} + +#define ARCH_VDSO_GETTIMEOFDAY(tv, tz) __arm_vdso_gettimeofday(tv, tz) +#define ARCH_VDSO_CLOCK_GETTIME(clock_id, tp) __arm_vdso_clock_gettime(clock_id, tp) + +#endif /* defined(__VDSO_SUPPORT__) && !defined(UCLIBC_LDSO) */ + +#endif /* _DL_SYSCALLS_H */ + diff --git a/ldso/ldso/arm/dl-sysdep.h b/ldso/ldso/arm/dl-sysdep.h index 0f783e1c4..93e36b694 100644 --- a/ldso/ldso/arm/dl-sysdep.h +++ b/ldso/ldso/arm/dl-sysdep.h @@ -96,43 +96,6 @@ unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); | (((type) == R_ARM_COPY) * ELF_RTYPE_CLASS_COPY)) #endif /* __FDPIC__ */ -/* Return the link-time address of _DYNAMIC. Conveniently, this is the - first element of the GOT. We used to use the PIC register to do this - without a constant pool reference, but GCC 4.2 will use a pseudo-register - for the PIC base, so it may not be in r10. */ -static __always_inline Elf32_Addr __attribute__ ((unused)) -elf_machine_dynamic (void) -{ - Elf32_Addr dynamic; -#if !defined __thumb__ - __asm__ ("ldr %0, 2f\n" - "1: ldr %0, [pc, %0]\n" - "b 3f\n" - "2: .word _GLOBAL_OFFSET_TABLE_ - (1b+8)\n" - "3:" : "=r" (dynamic)); -#else - int tmp; - __asm__ (".align 2\n" - "bx pc\n" - "nop\n" - ".arm\n" - "ldr %0, 2f\n" - "1: ldr %0, [pc, %0]\n" - "b 3f\n" - "2: .word _GLOBAL_OFFSET_TABLE_ - (1b+8)\n" - "3:" - ".align 2\n" - "orr %1, pc, #1\n" - "bx %1\n" - ".force_thumb\n" - : "=r" (dynamic), "=&r" (tmp)); -#endif - - return dynamic; -} - -extern char __dl_start[] __asm__("_dl_start"); - #ifdef __FDPIC__ /* We must force strings used early in the bootstrap into the data segment. */ @@ -148,28 +111,16 @@ extern char __dl_start[] __asm__("_dl_start"); static __always_inline Elf32_Addr __attribute__ ((unused)) elf_machine_load_address (void) { -#if defined(__FDPIC__) - return 0; -#else - Elf32_Addr got_addr = (Elf32_Addr) &__dl_start; - Elf32_Addr pcrel_addr; -#if defined __OPTIMIZE__ && !defined __thumb__ - __asm__ ("adr %0, _dl_start" : "=r" (pcrel_addr)); -#else - /* A simple adr does not work in Thumb mode because the offset is - negative, and for debug builds may be too large. */ - int tmp; - __asm__ ("adr %1, 1f\n\t" - "ldr %0, [%1]\n\t" - "add %0, %0, %1\n\t" - "b 2f\n\t" - ".align 2\n\t" - "1: .word _dl_start - 1b\n\t" - "2:" - : "=r" (pcrel_addr), "=r" (tmp)); -#endif - return pcrel_addr - got_addr; -#endif + extern const Elf32_Ehdr __ehdr_start attribute_hidden; + return (Elf32_Addr) &__ehdr_start; +} + +/* Return the link-time address of _DYNAMIC. */ +static __always_inline Elf32_Addr __attribute__ ((unused)) +elf_machine_dynamic (void) +{ + extern Elf32_Dyn _DYNAMIC[] attribute_hidden; + return (Elf32_Addr) _DYNAMIC - elf_machine_load_address (); } static __always_inline void diff --git a/ldso/ldso/arm/elfinterp.c b/ldso/ldso/arm/elfinterp.c index 4c268356f..9c9a3e8ca 100644 --- a/ldso/ldso/arm/elfinterp.c +++ b/ldso/ldso/arm/elfinterp.c @@ -92,7 +92,7 @@ unsigned long _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_offet) *got_entry = funcval; #endif - return got_entry; + return (unsigned long)got_entry; } #else unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry) @@ -362,7 +362,7 @@ _dl_do_reloc (struct elf_resolve *tpnt,struct r_scope_elem *scope, unsigned long reloc_value = *reloc_addr; if (symbol_addr) - reloc_value = (unsigned long) _dl_funcdesc_for(symbol_addr + reloc_value, sym_ref.tpnt->loadaddr.got_value); + reloc_value = (unsigned long) _dl_funcdesc_for((void *)(symbol_addr + reloc_value), sym_ref.tpnt->loadaddr.got_value); else /* Relocation against an undefined weak symbol: @@ -429,7 +429,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, { struct funcdesc_value *dst = (struct funcdesc_value *) reloc_addr; - dst->entry_point = DL_RELOC_ADDR(tpnt->loadaddr, dst->entry_point); + dst->entry_point = (void *)DL_RELOC_ADDR(tpnt->loadaddr, dst->entry_point); dst->got_value = tpnt->loadaddr.got_value; } break; diff --git a/ldso/ldso/dl-elf.c b/ldso/ldso/dl-elf.c index 2bcfcda64..6656acb0f 100644 --- a/ldso/ldso/dl-elf.c +++ b/ldso/ldso/dl-elf.c @@ -182,7 +182,10 @@ search_for_named_library(const char *name, unsigned int rflags, const char *path } else { _dl_strcpy(mylibname, "."); } - _dl_strcat(mylibname, "/"); + plen = _dl_strlen(mylibname); + if ((plen == 0) || (mylibname[plen-1] != '/')) { + _dl_strcat(mylibname, "/"); + } _dl_strcat(mylibname, name); #ifdef __LDSO_SAFE_RUNPATH__ if (*mylibname == '/') @@ -897,7 +900,8 @@ struct elf_resolve *_dl_load_elf_shared_library(unsigned int rflags, _dl_memset(*rpnt, 0, sizeof(struct dyn_elf)); } #endif - |