diff options
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/include/dl-syscall.h | 4 | ||||
| -rw-r--r-- | ldso/ldso/m68k/dl-startup.h | 15 | ||||
| -rw-r--r-- | ldso/ldso/m68k/dl-sysdep.h | 20 |
3 files changed, 30 insertions, 9 deletions
diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h index 1cbbbad0f..0b0b0ef1d 100644 --- a/ldso/include/dl-syscall.h +++ b/ldso/include/dl-syscall.h @@ -152,7 +152,7 @@ static __always_inline _syscall2(int, _dl_gettimeofday, struct timeval *, tv, # define __NR__dl_mmap __NR_mmap static __always_inline _syscall6(void *, _dl_mmap, void *, start, size_t, length, int, prot, int, flags, int, fd, off_t, offset); - +#if !defined (__mcoldfire__) // Might be a kernel problem. failed on 2.6.25 /* then try mmap2() */ #elif defined(__NR_mmap2) @@ -176,7 +176,7 @@ static __always_inline void * _dl_mmap(void * addr, unsigned long size, int prot return __syscall_mmap2(addr, size, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)); } - +#endif /* finally, fall back to mmap(), syscall1() style */ #elif defined(__NR_mmap) diff --git a/ldso/ldso/m68k/dl-startup.h b/ldso/ldso/m68k/dl-startup.h index 2c38102a3..13530e05c 100644 --- a/ldso/ldso/m68k/dl-startup.h +++ b/ldso/ldso/m68k/dl-startup.h @@ -4,6 +4,17 @@ * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org> */ +/* Perform operation OP with PC-relative SRC as the first operand and + * DST as the second. TMP is available as a temporary if needed. */ + +#ifdef __mcoldfire__ +#define PCREL_OP(OP, SRC, DST, TMP, PC) \ + "move.l #" SRC " - ., " TMP "\n\t" OP " (-8, " PC ", " TMP "), " DST +#else +#define PCREL_OP(OP, SRC, DST, TMP, PC) \ + OP " " SRC "(" PC "), " DST +#endif + __asm__ ("\ .text\n\ .globl _start\n\ @@ -21,7 +32,7 @@ _dl_start_user:\n\ move.l %d0, %a4\n\ # See if we were run as a command with the executable file\n\ # name as an extra leading argument.\n\ - move.l _dl_skip_args(%pc), %d0\n\ + " PCREL_OP ("move.l", "_dl_skip_args", "%d0", "%d0", "%pc") "\n\ # Pop the original argument count\n\ move.l (%sp)+, %d1\n\ # Subtract _dl_skip_args from it.\n\ @@ -31,7 +42,7 @@ _dl_start_user:\n\ # Push back the modified argument count.\n\ move.l %d1, -(%sp)\n\ # Pass our finalizer function to the user in %a1.\n\ - lea _dl_fini(%pc), %a1\n\ + " PCREL_OP ("lea", "_dl_fini", "%a1", "%a1", "%pc") "\n\ # Initialize %fp with the stack pointer.\n\ move.l %sp, %fp\n\ # Jump to the user's entry point.\n\ diff --git a/ldso/ldso/m68k/dl-sysdep.h b/ldso/ldso/m68k/dl-sysdep.h index 259cb84be..b5eda4e9c 100644 --- a/ldso/ldso/m68k/dl-sysdep.h +++ b/ldso/ldso/m68k/dl-sysdep.h @@ -42,19 +42,29 @@ extern unsigned long _dl_linux_resolver (struct elf_resolve *, int); static __always_inline Elf32_Addr elf_machine_dynamic (void) { - register Elf32_Addr *got __asm__ ("%a5"); - return *got; + Elf32_Addr got; + + __asm__ ("move.l _DYNAMIC@GOT.w(%%a5), %0" + : "=a" (got)); + return got; } +#ifdef __mcoldfire__ +#define PCREL_OP(OP, SRC, DST, TMP, PC) \ + "move.l #" SRC " - ., " TMP "\n\t" OP " (-8, " PC ", " TMP "), " DST +#else +#define PCREL_OP(OP, SRC, DST, TMP, PC) \ + OP " " SRC "(" PC "), " DST +#endif /* Return the run-time load address of the shared object. */ static __always_inline Elf32_Addr elf_machine_load_address (void) { Elf32_Addr addr; - __asm__ ("lea _dl_start(%%pc), %0\n\t" - "sub.l _dl_start@GOT.w(%%a5), %0" - : "=a" (addr)); + __asm__ (PCREL_OP ("lea", "_dl_start", "%0", "%0", "%%pc") "\n\t" + "sub.l _dl_start@GOT.w(%%a5), %0" + : "=a" (addr)); return addr; } |