diff options
| author | David S. Miller <davem@davemloft.net> | 2012-02-21 15:42:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-20 17:51:53 -0800 |
| commit | 3d2b3019e0efa9735370498122ac80298deff8c7 (patch) | |
| tree | 693771bb0b1fba08098558d99613ce80bc36a923 /sysdeps/sparc/sparc32/dl-machine.h | |
| parent | c80098a9a05b7d5f8ad1488135f2cee613998c50 (diff) | |
| download | glibc-3d2b3019e0efa9735370498122ac80298deff8c7.tar.gz | |
Use sparc GOTDATA relocations whenever possible.
* sysdeps/sparc/crti.S: Try to use GOTDATA relocs.
* sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise.
* sysdeps/sparc/sparc32/elf/start.S: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h (RTLD_START): Likewise.
* sysdeps/sparc/sparc64/elf/start.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memset.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/____longjmp_chk.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
(SYSCALL_ERROR_HANDLER): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
(SYSCALL_ERROR_HANDLER): Likewise.
Diffstat (limited to 'sysdeps/sparc/sparc32/dl-machine.h')
| -rw-r--r-- | sysdeps/sparc/sparc32/dl-machine.h | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h index a0c18dc1c4..7ea97fbffd 100644 --- a/sysdeps/sparc/sparc32/dl-machine.h +++ b/sysdeps/sparc/sparc32/dl-machine.h @@ -216,6 +216,18 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) The C function `_dl_start' is the real entry point; its return value is the user program's entry point. */ +#ifdef HAVE_BINUTILS_GOTDATA +#define RTLD_GOT_ADDRESS(pic_reg, reg, symbol) \ + "sethi %gdop_hix22(" #symbol "), " #reg "\n\t" \ + "xor " #reg ", %gdop_lox10(" #symbol "), " #reg "\n\t" \ + "ld [" #pic_reg " + " #reg "], " #reg ", %gdop(" #symbol ")" +#else +#define RTLD_GOT_ADDRESS(pic_reg, reg, symbol) \ + "sethi %hi(" #symbol "), " #reg "\n\t" \ + "or " #reg ", %lo(" #symbol "), " #reg "\n\t" \ + "ld [" #pic_reg " + " #reg "], " #reg +#endif + #define RTLD_START __asm__ ("\ .text\n\ .globl _start\n\ @@ -240,17 +252,13 @@ _dl_start_user:\n\ mov %o0, %l0\n\ /* See if we were run as a command with the executable file name as an\n\ extra leading argument. If so, adjust the contents of the stack. */\n\ - sethi %hi(_dl_skip_args), %g2\n\ - or %g2, %lo(_dl_skip_args), %g2\n\ - ld [%l7+%g2], %i0\n\ - ld [%i0], %i0\n\ + " RTLD_GOT_ADDRESS(%l7, %g2, _dl_skip_args) "\n\ + ld [%g2], %i0\n\ tst %i0\n\ beq 3f\n\ ld [%sp+22*4], %i5 /* load argc */\n\ /* Find out how far to shift. */\n\ - sethi %hi(_dl_argv), %l3\n\ - or %l3, %lo(_dl_argv), %l3\n\ - ld [%l7+%l3], %l3\n\ + " RTLD_GOT_ADDRESS(%l7, %l3, _dl_argv) "\n\ sub %i5, %i0, %i5\n\ ld [%l3], %l4\n\ sll %i0, 2, %i2\n\ @@ -283,20 +291,16 @@ _dl_start_user:\n\ bne 23b\n\ add %i1, 8, %i1\n\ /* %o0 = _dl_loaded, %o1 = argc, %o2 = argv, %o3 = envp. */\n\ -3: sethi %hi(_rtld_local), %o0\n\ +3: " RTLD_GOT_ADDRESS(%l7, %o0, _rtld_local) "\n\ add %sp, 23*4, %o2\n\ - orcc %o0, %lo(_rtld_local), %o0\n\ sll %i5, 2, %o3\n\ - ld [%l7+%o0], %o0\n\ add %o3, 4, %o3\n\ mov %i5, %o1\n\ add %o2, %o3, %o3\n\ call _dl_init_internal\n\ ld [%o0], %o0\n\ /* Pass our finalizer function to the user in %g1. */\n\ - sethi %hi(_dl_fini), %g1\n\ - or %g1, %lo(_dl_fini), %g1\n\ - ld [%l7+%g1], %g1\n\ + " RTLD_GOT_ADDRESS(%l7, %g1, _dl_fini) "\n\ /* Jump to the user's entry point and deallocate the extra stack we got. */\n\ jmp %l0\n\ add %sp, 6*4, %sp\n\ |