diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S b/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S deleted file mode 100644 index 8e88a3ff04..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S +++ /dev/null @@ -1,140 +0,0 @@ -/* Userland trampoline code for sigaction on Linux/SPARC */ -/* (C) 1996, 1997 Free Software Foundation, Inc. */ -/* This file is part of the GNU C Library. */ -/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu) */ -/* Many thanks go to David Miller for explaining all this to me */ -/* miguel@nuclecu.unam.mx */ -/* Sources: David Miller, 4.4BSD/SPARC code */ - -#include <sysdep.h> -#define __ASSEMBLY__ -/* For REGWIN_SZ */ -#include <asm/ptrace.h> -#include <asm/psr.h> - -/* The C compiler frame size */ -#define CCFSZ 96 - - .text - -ENTRY(____sparc_signal_trampoline) - .global C_SYMBOL_NAME(____sig_table) - - /* Make room for 32 %f registers + %fsr - * this is 132 bytes + alignement = 136 - * 96 is the C frame size - */ - save %sp,-136-CCFSZ,%sp - - /* save regular registers */ - mov %g2,%l2 - mov %g3,%l3 - mov %g4,%l4 - mov %g5,%l5 - mov %g6,%l6 - mov %g7,%l7 - - /* save fpu registers */ - ld [%fp+64+16+20],%l0 /* load the psr from sigcontext */ - sethi %hi(PSR_EF),%l1 - andcc %l0,%l1,%l0 /* is floating point enabled? */ - be 1f - rd %y,%l1 /* save y anyways */ - - /* save fpu registers */ - st %fsr, [%sp + CCFSZ + 0] - std %f0, [%sp + CCFSZ + 8] - std %f2, [%sp + CCFSZ + 16] - std %f4, [%sp + CCFSZ + 24] - std %f6, [%sp + CCFSZ + 32] - std %f8, [%sp + CCFSZ + 40] - std %f10, [%sp + CCFSZ + 48] - std %f12, [%sp + CCFSZ + 56] - std %f14, [%sp + CCFSZ + 64] - std %f16, [%sp + CCFSZ + 72] - std %f18, [%sp + CCFSZ + 80] - std %f20, [%sp + CCFSZ + 88] - std %f22, [%sp + CCFSZ + 96] - std %f24, [%sp + CCFSZ + 104] - std %f26, [%sp + CCFSZ + 112] - std %f28, [%sp + CCFSZ + 120] - std %f30, [%sp + CCFSZ + 128] - -1: - /* Load signal number */ - ld [%fp + REGWIN_SZ],%o0 - mov %fp,%o1 - mov 0xfea,%o2 - - /* Sanity check */ - cmp %o0,33 - bl 1f - or %g0,%g0,%g1 /*Call sys_setup */ - t 0x10 -1: -#ifdef PIC - /* Save return address */ - mov %o7,%o5 -11: call 12f - sethi %hi(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4 -12: or %o5,%lo(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4 - add %o7,%o4,%o4 - /* restore return address */ - mov %o5,%o7 - /* o4 has the GOT pointer */ -#endif - sethi %hi(C_SYMBOL_NAME(____sig_table)),%o5 - or %o5,%lo(C_SYMBOL_NAME(____sig_table)),%o5 -#ifdef PIC - ld [%o4+%o5], %o5 -#endif - sll %o0,2,%o4 - add %o5,%o4,%o4 - ld [%o4],%o4 - ld [%fp + REGWIN_SZ + 4],%o1 /* Load subcode */ - ld [%fp + REGWIN_SZ + 8],%o2 /* pointer to sigcontext */ - call %o4 - ld [%fp + REGWIN_SZ + 12],%o3 /* Address where signal ocurre - */ - - /* handler returned, restore state */ - tst %l0 - be 1f - wr %l1,%g0,%y - - /* fpu restoration */ - ld [%sp + CCFSZ + 0], %fsr - ldd [%sp + CCFSZ + 8], %f0 - ldd [%sp + CCFSZ + 16], %f2 - ldd [%sp + CCFSZ + 24], %f4 - ldd [%sp + CCFSZ + 32], %f6 - ldd [%sp + CCFSZ + 40], %f8 - ldd [%sp + CCFSZ + 48], %f10 - ldd [%sp + CCFSZ + 56], %f12 - ldd [%sp + CCFSZ + 64], %f14 - ldd [%sp + CCFSZ + 72], %f16 - ldd [%sp + CCFSZ + 80], %f18 - ldd [%sp + CCFSZ + 88], %f20 - ldd [%sp + CCFSZ + 96], %f22 - ldd [%sp + CCFSZ + 104], %f24 - ldd [%sp + CCFSZ + 112], %f26 - ldd [%sp + CCFSZ + 120], %f28 - ldd [%sp + CCFSZ + 128], %f30 - -1: - mov %l2,%g2 - mov %l3,%g3 - mov %l4,%g4 - mov %l5,%g5 - mov %l6,%g6 - mov %l7,%g7 - - /* call sigreturn */ - restore %g0,SYS_ify(sigreturn),%g1 /* register back and set syscal */ - add %sp,64+16,%o0 - t 0x10 - /* if we return, sysreturn failed */ - mov SYS_ify(exit),%g1 - t 0x10 - -END(____sparc_signal_trampoline) |