diff options
Diffstat (limited to 'libc/sysdeps/linux/sparc/__longjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/sparc/__longjmp.S | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/libc/sysdeps/linux/sparc/__longjmp.S b/libc/sysdeps/linux/sparc/__longjmp.S index 54af3c27a..2d568d381 100644 --- a/libc/sysdeps/linux/sparc/__longjmp.S +++ b/libc/sysdeps/linux/sparc/__longjmp.S @@ -2,21 +2,19 @@ This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Code taken from glibc/sysdeps/sparc/sparc32/ (glibc 2.2.2) */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #include <sysdep.h> @@ -27,7 +25,11 @@ #define ST_FLUSH_WINDOWS 3 #define RW_FP [%fp + 0x48] -ENTRY(__longjmp) +.global __longjmp; +.align 4; +__longjmp: ; +.type __longjmp ,@function; + /* Store our arguments in global registers so we can still use them while unwinding frames and their register windows. */ @@ -40,27 +42,21 @@ ENTRY(__longjmp) xor %fp, %g3, %o0 add %fp, 512, %o1 andncc %o0, 4095, %o0 - bne thread - //bne LOC(thread) + bne .Lthread cmp %o1, %g3 - bl thread - //bl LOC(thread) + bl .Lthread /* Now we will loop, unwinding the register windows up the stack until the restored %fp value matches the target value in %g3. */ -//LOC(loop): -loop: +.Lloop: cmp %fp, %g3 /* Have we reached the target frame? */ - bl,a loop /* Loop while current fp is below target. */ - //bl,a LOC(loop) /* Loop while current fp is below target. */ + bl,a .Lloop /* Loop while current fp is below target. */ restore /* Unwind register window in delay slot. */ - be,a found /* Better have hit it exactly. */ - //be,a LOC(found) /* Better have hit it exactly. */ + be,a .Lfound /* Better have hit it exactly. */ ld ENV(g1,JB_SP), %o0 /* Delay slot: extract target SP. */ -thread: -//LOC(thread): +.Lthread: /* * Do a "flush register windows trap". The trap handler in the * kernel writes all the register windows to their stack slots, and @@ -77,15 +73,13 @@ thread: retl restore %g2, 0, %o0 /* Restore values from above register frame. */ -found: -//LOC(found): +.Lfound: /* We have unwound register windows so %fp matches the target. */ mov %o0, %sp /* OK, install new SP. */ -//LOC(sp_ok): -sp_ok: +.Lsp_ok: ld ENV(g1,JB_PC), %o0 /* Extract target return PC. */ jmp %o0 + 8 /* Return there. */ mov %g2, %o0 /* Delay slot: set return value. */ -END(__longjmp) +.size __longjmp , . - __longjmp |