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Diffstat (limited to 'toolchain/gcc/patches/4.7.3/musl-ppc.patch')
-rw-r--r--toolchain/gcc/patches/4.7.3/musl-ppc.patch380
1 files changed, 0 insertions, 380 deletions
diff --git a/toolchain/gcc/patches/4.7.3/musl-ppc.patch b/toolchain/gcc/patches/4.7.3/musl-ppc.patch
index ed84a76f0..f4211ee73 100644
--- a/toolchain/gcc/patches/4.7.3/musl-ppc.patch
+++ b/toolchain/gcc/patches/4.7.3/musl-ppc.patch
@@ -153,383 +153,3 @@ diff -Nur gcc-4.7.3.orig/libgcc/config/rs6000/linux-unwind.h gcc-4.7.3/libgcc/co
{
fs->regs.reg[i + FIRST_PSEUDO_REGISTER - 1].how = REG_SAVED_OFFSET;
fs->regs.reg[i + FIRST_PSEUDO_REGISTER - 1].loc.offset
-diff -Nur gcc-4.7.3.orig/libgcc/config/rs6000/linux-unwind.h.orig gcc-4.7.3/libgcc/config/rs6000/linux-unwind.h.orig
---- gcc-4.7.3.orig/libgcc/config/rs6000/linux-unwind.h.orig 1970-01-01 01:00:00.000000000 +0100
-+++ gcc-4.7.3/libgcc/config/rs6000/linux-unwind.h.orig 2011-11-12 18:20:58.000000000 +0100
-@@ -0,0 +1,376 @@
-+/* DWARF2 EH unwinding support for PowerPC and PowerPC64 Linux.
-+ Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011
-+ Free Software Foundation, Inc.
-+
-+ This file is part of GCC.
-+
-+ GCC is free software; you can redistribute it and/or modify it
-+ under the terms of the GNU General Public License as published
-+ by the Free Software Foundation; either version 3, or (at your
-+ option) any later version.
-+
-+ GCC 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 General Public
-+ License for more details.
-+
-+ Under Section 7 of GPL version 3, you are granted additional
-+ permissions described in the GCC Runtime Library Exception, version
-+ 3.1, as published by the Free Software Foundation.
-+
-+ You should have received a copy of the GNU General Public License and
-+ a copy of the GCC Runtime Library Exception along with this program;
-+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-+ <http://www.gnu.org/licenses/>. */
-+
-+#define R_LR 65
-+#define R_CR2 70
-+#define R_VR0 77
-+#define R_VRSAVE 109
-+#define R_VSCR 110
-+
-+struct gcc_vregs
-+{
-+ __attribute__ ((vector_size (16))) int vr[32];
-+#ifdef __powerpc64__
-+ unsigned int pad1[3];
-+ unsigned int vscr;
-+ unsigned int vsave;
-+ unsigned int pad2[3];
-+#else
-+ unsigned int vsave;
-+ unsigned int pad[2];
-+ unsigned int vscr;
-+#endif
-+};
-+
-+struct gcc_regs
-+{
-+ unsigned long gpr[32];
-+ unsigned long nip;
-+ unsigned long msr;
-+ unsigned long orig_gpr3;
-+ unsigned long ctr;
-+ unsigned long link;
-+ unsigned long xer;
-+ unsigned long ccr;
-+ unsigned long softe;
-+ unsigned long trap;
-+ unsigned long dar;
-+ unsigned long dsisr;
-+ unsigned long result;
-+ unsigned long pad1[4];
-+ double fpr[32];
-+ unsigned int pad2;
-+ unsigned int fpscr;
-+#ifdef __powerpc64__
-+ struct gcc_vregs *vp;
-+#else
-+ unsigned int pad3[2];
-+#endif
-+ struct gcc_vregs vregs;
-+};
-+
-+struct gcc_ucontext
-+{
-+#ifdef __powerpc64__
-+ unsigned long pad[28];
-+#else
-+ unsigned long pad[12];
-+#endif
-+ struct gcc_regs *regs;
-+ struct gcc_regs rsave;
-+};
-+
-+#ifdef __powerpc64__
-+
-+enum { SIGNAL_FRAMESIZE = 128 };
-+
-+/* If PC is at a sigreturn trampoline, return a pointer to the
-+ regs. Otherwise return NULL. */
-+
-+static struct gcc_regs *
-+get_regs (struct _Unwind_Context *context)
-+{
-+ const unsigned int *pc = context->ra;
-+
-+ /* addi r1, r1, 128; li r0, 0x0077; sc (sigreturn) */
-+ /* addi r1, r1, 128; li r0, 0x00AC; sc (rt_sigreturn) */
-+ if (pc[0] != 0x38210000 + SIGNAL_FRAMESIZE || pc[2] != 0x44000002)
-+ return NULL;
-+ if (pc[1] == 0x38000077)
-+ {
-+ struct sigframe {
-+ char gap[SIGNAL_FRAMESIZE];
-+ unsigned long pad[7];
-+ struct gcc_regs *regs;
-+ } *frame = (struct sigframe *) context->cfa;
-+ return frame->regs;
-+ }
-+ else if (pc[1] == 0x380000AC)
-+ {
-+ /* This works for 2.4 kernels, but not for 2.6 kernels with vdso
-+ because pc isn't pointing into the stack. Can be removed when
-+ no one is running 2.4.19 or 2.4.20, the first two ppc64
-+ kernels released. */
-+ const struct rt_sigframe_24 {
-+ int tramp[6];
-+ void *pinfo;
-+ struct gcc_ucontext *puc;
-+ } *frame24 = (const struct rt_sigframe_24 *) context->ra;
-+
-+ /* Test for magic value in *puc of vdso. */
-+ if ((long) frame24->puc != -21 * 8)
-+ return frame24->puc->regs;
-+ else
-+ {
-+ /* This works for 2.4.21 and later kernels. */
-+ struct rt_sigframe {
-+ char gap[SIGNAL_FRAMESIZE];
-+ struct gcc_ucontext uc;
-+ unsigned long pad[2];
-+ int tramp[6];
-+ void *pinfo;
-+ struct gcc_ucontext *puc;
-+ } *frame = (struct rt_sigframe *) context->cfa;
-+ return frame->uc.regs;
-+ }
-+ }
-+ return NULL;
-+}
-+
-+#else /* !__powerpc64__ */
-+
-+enum { SIGNAL_FRAMESIZE = 64 };
-+
-+static struct gcc_regs *
-+get_regs (struct _Unwind_Context *context)
-+{
-+ const unsigned int *pc = context->ra;
-+
-+ /* li r0, 0x7777; sc (sigreturn old) */
-+ /* li r0, 0x0077; sc (sigreturn new) */
-+ /* li r0, 0x6666; sc (rt_sigreturn old) */
-+ /* li r0, 0x00AC; sc (rt_sigreturn new) */
-+ if (pc[1] != 0x44000002)
-+ return NULL;
-+ if (pc[0] == 0x38007777 || pc[0] == 0x38000077)
-+ {
-+ struct sigframe {
-+ char gap[SIGNAL_FRAMESIZE];
-+ unsigned long pad[7];
-+ struct gcc_regs *regs;
-+ } *frame = (struct sigframe *) context->cfa;
-+ return frame->regs;
-+ }
-+ else if (pc[0] == 0x38006666 || pc[0] == 0x380000AC)
-+ {
-+ struct rt_sigframe {
-+ char gap[SIGNAL_FRAMESIZE + 16];
-+ char siginfo[128];
-+ struct gcc_ucontext uc;
-+ } *frame = (struct rt_sigframe *) context->cfa;
-+ return frame->uc.regs;
-+ }
-+ return NULL;
-+}
-+#endif
-+
-+/* Find an entry in the process auxiliary vector. The canonical way to
-+ test for VMX is to look at AT_HWCAP. */
-+
-+static long
-+ppc_linux_aux_vector (long which)
-+{
-+ /* __libc_stack_end holds the original stack passed to a process. */
-+ extern long *__libc_stack_end;
-+ long argc;
-+ char **argv;
-+ char **envp;
-+ struct auxv
-+ {
-+ long a_type;
-+ long a_val;
-+ } *auxp;
-+
-+ /* The Linux kernel puts argc first on the stack. */
-+ argc = __libc_stack_end[0];
-+ /* Followed by argv, NULL terminated. */
-+ argv = (char **) __libc_stack_end + 1;
-+ /* Followed by environment string pointers, NULL terminated. */
-+ envp = argv + argc + 1;
-+ while (*envp++)
-+ continue;
-+ /* Followed by the aux vector, zero terminated. */
-+ for (auxp = (struct auxv *) envp; auxp->a_type != 0; ++auxp)
-+ if (auxp->a_type == which)
-+ return auxp->a_val;
-+ return 0;
-+}
-+
-+/* Do code reading to identify a signal frame, and set the frame
-+ state data appropriately. See unwind-dw2.c for the structs. */
-+
-+#define MD_FALLBACK_FRAME_STATE_FOR ppc_fallback_frame_state
-+
-+static _Unwind_Reason_Code
-+ppc_fallback_frame_state (struct _Unwind_Context *context,
-+ _Unwind_FrameState *fs)
-+{
-+ static long hwcap = 0;
-+ struct gcc_regs *regs = get_regs (context);
-+ long new_cfa;
-+ int i;
-+
-+ if (regs == NULL)
-+ return _URC_END_OF_STACK;
-+
-+ new_cfa = regs->gpr[STACK_POINTER_REGNUM];
-+ fs->regs.cfa_how = CFA_REG_OFFSET;
-+ fs->regs.cfa_reg = STACK_POINTER_REGNUM;
-+ fs->regs.cfa_offset = new_cfa - (long) context->cfa;
-+
-+ for (i = 0; i < 32; i++)
-+ if (i != STACK_POINTER_REGNUM)
-+ {
-+ fs->regs.reg[i].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[i].loc.offset = (long) &regs->gpr[i] - new_cfa;
-+ }
-+
-+ fs->regs.reg[R_CR2].how = REG_SAVED_OFFSET;
-+ /* CR? regs are always 32-bit and PPC is big-endian, so in 64-bit
-+ libgcc loc.offset needs to point to the low 32 bits of regs->ccr. */
-+ fs->regs.reg[R_CR2].loc.offset = (long) &regs->ccr - new_cfa
-+ + sizeof (long) - 4;
-+
-+ fs->regs.reg[R_LR].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[R_LR].loc.offset = (long) &regs->link - new_cfa;
-+
-+ fs->regs.reg[ARG_POINTER_REGNUM].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[ARG_POINTER_REGNUM].loc.offset = (long) &regs->nip - new_cfa;
-+ fs->retaddr_column = ARG_POINTER_REGNUM;
-+ fs->signal_frame = 1;
-+
-+ if (hwcap == 0)
-+ {
-+ hwcap = ppc_linux_aux_vector (16);
-+ /* These will already be set if we found AT_HWCAP. A nonzero
-+ value stops us looking again if for some reason we couldn't
-+ find AT_HWCAP. */
-+#ifdef __powerpc64__
-+ hwcap |= 0xc0000000;
-+#else
-+ hwcap |= 0x80000000;
-+#endif
-+ }
-+
-+ /* If we have a FPU... */
-+ if (hwcap & 0x08000000)
-+ for (i = 0; i < 32; i++)
-+ {
-+ fs->regs.reg[i + 32].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[i + 32].loc.offset = (long) &regs->fpr[i] - new_cfa;
-+ }
-+
-+ /* If we have a VMX unit... */
-+ if (hwcap & 0x10000000)
-+ {
-+ struct gcc_vregs *vregs;
-+#ifdef __powerpc64__
-+ vregs = regs->vp;
-+#else
-+ vregs = &regs->vregs;
-+#endif
-+ if (regs->msr & (1 << 25))
-+ {
-+ for (i = 0; i < 32; i++)
-+ {
-+ fs->regs.reg[i + R_VR0].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[i + R_VR0].loc.offset
-+ = (long) &vregs->vr[i] - new_cfa;
-+ }
-+
-+ fs->regs.reg[R_VSCR].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[R_VSCR].loc.offset = (long) &vregs->vscr - new_cfa;
-+ }
-+
-+ fs->regs.reg[R_VRSAVE].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[R_VRSAVE].loc.offset = (long) &vregs->vsave - new_cfa;
-+ }
-+
-+ /* If we have SPE register high-parts... we check at compile-time to
-+ avoid expanding the code for all other PowerPC. */
-+#ifdef __SPE__
-+ for (i = 0; i < 32; i++)
-+ {
-+ fs->regs.reg[i + FIRST_PSEUDO_REGISTER - 1].how = REG_SAVED_OFFSET;
-+ fs->regs.reg[i + FIRST_PSEUDO_REGISTER - 1].loc.offset
-+ = (long) &regs->vregs - new_cfa + 4 * i;
-+ }
-+#endif
-+
-+ return _URC_NO_REASON;
-+}
-+
-+#define MD_FROB_UPDATE_CONTEXT frob_update_context
-+
-+static void
-+frob_update_context (struct _Unwind_Context *context, _Unwind_FrameState *fs ATTRIBUTE_UNUSED)
-+{
-+ const unsigned int *pc = (const unsigned int *) context->ra;
-+
-+ /* Fix up for 2.6.12 - 2.6.16 Linux kernels that have vDSO, but don't
-+ have S flag in it. */
-+#ifdef __powerpc64__
-+ /* addi r1, r1, 128; li r0, 0x0077; sc (sigreturn) */
-+ /* addi r1, r1, 128; li r0, 0x00AC; sc (rt_sigreturn) */
-+ if (pc[0] == 0x38210000 + SIGNAL_FRAMESIZE
-+ && (pc[1] == 0x38000077 || pc[1] == 0x380000AC)
-+ && pc[2] == 0x44000002)
-+ _Unwind_SetSignalFrame (context, 1);
-+#else
-+ /* li r0, 0x7777; sc (sigreturn old) */
-+ /* li r0, 0x0077; sc (sigreturn new) */
-+ /* li r0, 0x6666; sc (rt_sigreturn old) */
-+ /* li r0, 0x00AC; sc (rt_sigreturn new) */
-+ if ((pc[0] == 0x38007777 || pc[0] == 0x38000077
-+ || pc[0] == 0x38006666 || pc[0] == 0x380000AC)
-+ && pc[1] == 0x44000002)
-+ _Unwind_SetSignalFrame (context, 1);
-+#endif
-+
-+#ifdef __powerpc64__
-+ if (fs->regs.reg[2].how == REG_UNSAVED)
-+ {
-+ /* If the current unwind info (FS) does not contain explicit info
-+ saving R2, then we have to do a minor amount of code reading to
-+ figure out if it was saved. The big problem here is that the
-+ code that does the save/restore is generated by the linker, so
-+ we have no good way to determine at compile time what to do. */
-+ if (pc[0] == 0xF8410028
-+ || ((pc[0] & 0xFFFF0000) == 0x3D820000
-+ && pc[1] == 0xF8410028))
-+ {
-+ /* We are in a plt call stub or r2 adjusting long branch stub,
-+ before r2 has been saved. Keep REG_UNSAVED. */
-+ }
-+ else
-+ {
-+ unsigned int *insn
-+ = (unsigned int *) _Unwind_GetGR (context, R_LR);
-+ if (insn && *insn == 0xE8410028)
-+ _Unwind_SetGRPtr (context, 2, context->cfa + 40);
-+ else if (pc[0] == 0x4E800421
-+ && pc[1] == 0xE8410028)
-+ {
-+ /* We are at the bctrl instruction in a call via function
-+ pointer. gcc always emits the load of the new R2 just
-+ before the bctrl so this is the first and only place
-+ we need to use the stored R2. */
-+ _Unwind_Word sp = _Unwind_GetGR (context, 1);
-+ _Unwind_SetGRPtr (context, 2, (void *)(sp + 40));
-+ }
-+ }
-+ }
-+#endif
-+}
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