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| author | David S. Miller <davem@davemloft.net> | 2012-02-18 22:31:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-18 22:31:42 -0800 |
| commit | dd54084dd9549ae15c12db248571ad76946b8712 (patch) | |
| tree | 5ca8baa1ff74716ac8fa735cee0a0f169f985e39 /sysdeps/unix/sparc/sysdep.h | |
| parent | 2bcc53a3378d6e8782e1655cc18c8ac60e031a5d (diff) | |
| download | glibc-dd54084dd9549ae15c12db248571ad76946b8712.tar glibc-dd54084dd9549ae15c12db248571ad76946b8712.tar.gz glibc-dd54084dd9549ae15c12db248571ad76946b8712.tar.bz2 glibc-dd54084dd9549ae15c12db248571ad76946b8712.zip | |
Rework sparc PIC macros so crt{i,n}.S can use them too.
* sysdeps/unix/sparc/sysdep.h (SPARC_PIC_THUNK): New macro.
(SETUP_PIC_REG): Use SPARC_PIC_THUNK and don't save and restore
%o7 across the call.
(SETUP_PIC_REG_LEAF): Do %o7 save/restore in this new macro
instead.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Use
SETUP_PIC_REG_LEAF.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
* sysdeps/sparc/crti.S: Use SETUP_PIC_REG.
* sysdeps/sparc/crtn.S: Likewise.
Diffstat (limited to 'sysdeps/unix/sparc/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sparc/sysdep.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sysdeps/unix/sparc/sysdep.h b/sysdeps/unix/sparc/sysdep.h index fe8b75a0e7..10d561e789 100644 --- a/sysdeps/unix/sparc/sysdep.h +++ b/sysdeps/unix/sparc/sysdep.h @@ -26,8 +26,7 @@ C name space. Make sure we use an innocuous name. */ #define syscall_error C_SYMBOL_NAME(__syscall_error) -#ifdef PIC -#define SETUP_PIC_REG(reg, tmp) \ +#define SPARC_PIC_THUNK(reg) \ .ifndef __sparc_get_pc_thunk.reg; \ .section .text.__sparc_get_pc_thunk.reg,"axG",@progbits,__sparc_get_pc_thunk.reg,comdat; \ .align 32; \ @@ -38,13 +37,21 @@ __sparc_get_pc_thunk.reg: \ jmp %o7 + 8; \ add %o7, %reg, %##reg; \ .previous; \ - .endif; \ + .endif; + +#define SETUP_PIC_REG(reg) \ + SPARC_PIC_THUNK(reg) \ + sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %##reg; \ + call __sparc_get_pc_thunk.reg; \ + or %##reg, %lo(_GLOBAL_OFFSET_TABLE_+4), %##reg; + +#define SETUP_PIC_REG_LEAF(reg, tmp) \ + SPARC_PIC_THUNK(reg) \ sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %##reg; \ mov %o7, %##tmp; \ call __sparc_get_pc_thunk.reg; \ or %##reg, %lo(_GLOBAL_OFFSET_TABLE_+4), %##reg; \ mov %##tmp, %o7; -#endif #define ENTRY(name) \ .global C_SYMBOL_NAME(name); \ |