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-rw-r--r--package/gcc/patches/4.7.3/musl-ppc.patch155
1 files changed, 155 insertions, 0 deletions
diff --git a/package/gcc/patches/4.7.3/musl-ppc.patch b/package/gcc/patches/4.7.3/musl-ppc.patch
new file mode 100644
index 000000000..f4211ee73
--- /dev/null
+++ b/package/gcc/patches/4.7.3/musl-ppc.patch
@@ -0,0 +1,155 @@
+diff -Nur gcc-4.7.3.orig/libgcc/config/rs6000/linux-unwind.h gcc-4.7.3/libgcc/config/rs6000/linux-unwind.h
+--- gcc-4.7.3.orig/libgcc/config/rs6000/linux-unwind.h 2011-11-12 18:20:58.000000000 +0100
++++ gcc-4.7.3/libgcc/config/rs6000/linux-unwind.h 2013-09-15 18:29:20.000000000 +0200
+@@ -27,7 +27,6 @@
+ #define R_CR2 70
+ #define R_VR0 77
+ #define R_VRSAVE 109
+-#define R_VSCR 110
+
+ struct gcc_vregs
+ {
+@@ -176,38 +175,6 @@
+ }
+ #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. */
+
+@@ -217,8 +184,8 @@
+ ppc_fallback_frame_state (struct _Unwind_Context *context,
+ _Unwind_FrameState *fs)
+ {
+- static long hwcap = 0;
+ struct gcc_regs *regs = get_regs (context);
++ struct gcc_vregs *vregs;
+ long new_cfa;
+ int i;
+
+@@ -230,12 +197,15 @@
+ 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;
+- }
++#ifdef __powerpc64__
++ fs->regs.reg[2].how = REG_SAVED_OFFSET;
++ fs->regs.reg[2].loc.offset = (long) &regs->gpr[2] - new_cfa;
++#endif
++ for (i = 14; i < 32; i++)
++ {
++ 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
+@@ -251,57 +221,35 @@
+ fs->retaddr_column = ARG_POINTER_REGNUM;
+ fs->signal_frame = 1;
+
+- if (hwcap == 0)
++ /* If we have a FPU... */
++ for (i = 14; i < 32; i++)
+ {
+- 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
++ 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 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;
++ vregs = regs->vp;
+ #else
+- vregs = &regs->vregs;
++ vregs = &regs->vregs;
+ #endif
+- if (regs->msr & (1 << 25))
++ if (regs->msr & (1 << 25))
++ {
++ for (i = 20; i < 32; i++)
+ {
+- 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[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_VRSAVE].how = REG_SAVED_OFFSET;
+- fs->regs.reg[R_VRSAVE].loc.offset = (long) &vregs->vsave - 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++)
++ for (i = 14; 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