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-rw-r--r--packages/glibc/glibc-2.3.2/glibc23-powerpc-sigcontext.patch326
1 files changed, 326 insertions, 0 deletions
diff --git a/packages/glibc/glibc-2.3.2/glibc23-powerpc-sigcontext.patch b/packages/glibc/glibc-2.3.2/glibc23-powerpc-sigcontext.patch
index e69de29bb2..b5deae40b6 100644
--- a/packages/glibc/glibc-2.3.2/glibc23-powerpc-sigcontext.patch
+++ b/packages/glibc/glibc-2.3.2/glibc23-powerpc-sigcontext.patch
@@ -0,0 +1,326 @@
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions 2003-08-25 13:15:36.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions 2003-09-23 18:19:41.000000000 +1000
+@@ -22,5 +22,6 @@
+ }
+ GLIBC_2.3.3 {
+ posix_fadvise64; posix_fallocate64;
++ setcontext; getcontext; swapcontext; makecontext;
+ }
+ }
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S 2003-06-18 13:36:23.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S 2003-09-23 19:15:38.000000000 +1000
+@@ -18,12 +18,20 @@
+ 02111-1307 USA. */
+
+ #include <sysdep.h>
++#include <shlib-compat.h>
+
+ #define __ASSEMBLY__
+ #include <asm/ptrace.h>
+ #include "ucontext_i.h"
+
+ ENTRY(__getcontext)
++ /*
++ * Since we are not attempting to save the altivec registers,
++ * there is no need to get the register storage space
++ * aligned on a 16-byte boundary.
++ */
++ addi r3,r3,_UC_REG_SPACE
++ stw r3,_UC_REGS_PTR - _UC_REG_SPACE(r3)
+ stw r0,_UC_GREGS+(PT_R0*4)(r3)
+ stw r1,_UC_GREGS+(PT_R1*4)(r3)
+ mflr r0
+@@ -112,7 +120,7 @@
+ stfd fp31,_UC_FREGS+(31*8)(r3)
+ stfd fp0,_UC_FREGS+(32*8)(r3)
+
+- addi r5,r3,_UC_SIGMASK
++ addi r5,r3,_UC_SIGMASK - _UC_REG_SPACE
+ li r4,0
+ li r3,SIG_BLOCK
+ bl JUMPTARGET(sigprocmask)
+@@ -123,4 +131,18 @@
+ blr
+ PSEUDO_END(__getcontext)
+
+-weak_alias(__getcontext, getcontext)
++versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_3)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
++
++#define _ERRNO_H 1
++#include <bits/errno.h>
++
++ENTRY (__getcontext_stub)
++ li r3,ENOSYS
++ b JUMPTARGET(__syscall_error)
++ END (__getcontext_stub)
++
++compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)
++
++#endif
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S 2003-06-18 13:36:38.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S 2003-09-23 19:15:48.000000000 +1000
+@@ -18,6 +18,7 @@
+ 02111-1307 USA. */
+
+ #include <sysdep.h>
++#include <shlib-compat.h>
+
+ #define __ASSEMBLY__
+ #include <asm/ptrace.h>
+@@ -25,22 +26,24 @@
+
+ ENTRY(__makecontext)
+ /* Set up the first 7 args to the function in its registers */
+- stw r6,_UC_GREGS+(PT_R3*4)(r3)
+- stw r7,_UC_GREGS+(PT_R4*4)(r3)
+- stw r8,_UC_GREGS+(PT_R5*4)(r3)
+- stw r9,_UC_GREGS+(PT_R6*4)(r3)
+- stw r10,_UC_GREGS+(PT_R7*4)(r3)
++ addi r11,r3,_UC_REG_SPACE
++ stw r11,_UC_REGS_PTR(r3)
++ stw r6,_UC_GREGS+(PT_R3*4)(r11)
++ stw r7,_UC_GREGS+(PT_R4*4)(r11)
++ stw r8,_UC_GREGS+(PT_R5*4)(r11)
++ stw r9,_UC_GREGS+(PT_R6*4)(r11)
++ stw r10,_UC_GREGS+(PT_R7*4)(r11)
+ lwz r8,8(r1)
+ lwz r9,12(r1)
+- stw r8,_UC_GREGS+(PT_R8*4)(r3)
+- stw r9,_UC_GREGS+(PT_R9*4)(r3)
++ stw r8,_UC_GREGS+(PT_R8*4)(r11)
++ stw r9,_UC_GREGS+(PT_R9*4)(r11)
+
+ /* Set the NIP to the start of the function */
+- stw r4,_UC_GREGS+(PT_NIP*4)(r3)
++ stw r4,_UC_GREGS+(PT_NIP*4)(r11)
+
+ /* Set the function's r31 to ucp->uc_link for the exitcode below. */
+ lwz r7,_UC_LINK(r3)
+- stw r7,_UC_GREGS+(PT_R31*4)(r3)
++ stw r7,_UC_GREGS+(PT_R31*4)(r11)
+
+ /* Set the function's LR to point to the exitcode below. */
+ #ifdef PIC
+@@ -53,7 +56,7 @@
+ lis r6,L(exitcode)@ha
+ addi r6,r6,L(exitcode)@l
+ #endif
+- stw r6,_UC_GREGS+(PT_LNK*4)(r3)
++ stw r6,_UC_GREGS+(PT_LNK*4)(r11)
+
+ /*
+ * Set up the stack frame for the function.
+@@ -71,7 +74,7 @@
+ cmpwi r5,8
+ blt 2f /* less than 8 args is easy */
+ lwz r10,16(r1)
+- stw r10,_UC_GREGS+(PT_R10*4)(r3)
++ stw r10,_UC_GREGS+(PT_R10*4)(r11)
+ beq 2f /* if exactly 8 args */
+ subi r9,r5,3
+ subi r5,r5,8
+@@ -83,7 +86,7 @@
+ 3: lwzu r10,4(r6)
+ stwu r10,4(r8)
+ bdnz 3b
+-2: stw r7,_UC_GREGS+(PT_R1*4)(r3)
++2: stw r7,_UC_GREGS+(PT_R1*4)(r11)
+ li r6,0
+ stw r6,0(r7)
+
+@@ -102,4 +105,19 @@
+ b 4b
+
+ END(__makecontext)
+-weak_alias(__makecontext, makecontext)
++
++versioned_symbol (libc, __makecontext, makecontext, GLIBC_2_3_3)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
++
++#define _ERRNO_H 1
++#include <bits/errno.h>
++
++ENTRY (__makecontext_stub)
++ li r3,ENOSYS
++ b JUMPTARGET(__syscall_error)
++ END (__makecontext_stub)
++
++compat_symbol (libc, __makecontext_stub, makecontext, GLIBC_2_1)
++
++#endif
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S 2003-06-18 13:36:57.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S 2003-09-23 17:01:40.000000000 +1000
+@@ -18,6 +18,7 @@
+ 02111-1307 USA. */
+
+ #include <sysdep.h>
++#include <shlib-compat.h>
+
+ #define __ASSEMBLY__
+ #include <asm/ptrace.h>
+@@ -28,7 +29,7 @@
+ stwu r1,-16(r1)
+ stw r0,20(r1)
+ stw r31,12(r1)
+- mr r31,r3
++ lwz r31,_UC_REGS_PTR(r3)
+
+ /*
+ * If this ucontext refers to the point where we were interrupted
+@@ -144,6 +145,20 @@
+ sc
+ /* NOTREACHED */
+
+-PSEUDO_END(__setcontext)
++PSEUDO_END (__setcontext)
+
+-weak_alias(__setcontext, setcontext)
++versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_3)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_3)
++
++#define _ERRNO_H 1
++#include <bits/errno.h>
++
++ENTRY (__setcontext_stub)
++ li r3,ENOSYS
++ b JUMPTARGET(__syscall_error)
++ END (__setcontext_stub)
++
++compat_symbol (libc, __setcontext_stub, setcontext, GLIBC_2_0)
++
++#endif
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S 2003-06-18 13:37:19.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S 2003-09-23 19:15:56.000000000 +1000
+@@ -18,6 +18,7 @@
+ 02111-1307 USA. */
+
+ #include <sysdep.h>
++#include <shlib-compat.h>
+
+ #define __ASSEMBLY__
+ #include <asm/ptrace.h>
+@@ -25,6 +26,8 @@
+
+ ENTRY(__swapcontext)
+ /* Save the current context */
++ addi r3,r3,_UC_REG_SPACE
++ stw r3,_UC_REGS_PTR - _UC_REG_SPACE(r3)
+ stw r0,_UC_GREGS+(PT_R0*4)(r3)
+ stw r1,_UC_GREGS+(PT_R1*4)(r3)
+ mflr r0
+@@ -115,7 +118,7 @@
+ stfd fp31,_UC_FREGS+(31*8)(r3)
+ stfd fp0,_UC_FREGS+(32*8)(r3)
+
+- addi r5,r3,_UC_SIGMASK
++ addi r5,r3,_UC_SIGMASK - _UC_REG_SPACE
+ addi r4,r4,_UC_SIGMASK
+ li r3,SIG_SETMASK
+ bl JUMPTARGET(sigprocmask)
+@@ -133,6 +136,8 @@
+ * r0, xer, ctr. We don't restore r2 since it will be used as
+ * the TLS pointer.
+ */
++ mr r4,r31
++ lwz r31,_UC_REGS_PTR(r31)
+ lwz r0,_UC_GREGS+(PT_MSR*4)(r31)
+ cmpwi r0,0
+ bne L(do_sigret)
+@@ -223,11 +228,25 @@
+ blr
+
+ L(do_sigret):
+- addi r1,r31,-0xd0
++ addi r1,r4,-0xd0
+ li r0,SYS_ify(rt_sigreturn)
+ sc
+ /* NOTREACHED */
+
+ PSEUDO_END(__swapcontext)
+
+-weak_alias(__swapcontext, swapcontext)
++versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_3)
++
++#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
++
++#define _ERRNO_H 1
++#include <bits/errno.h>
++
++ENTRY (__swapcontext_stub)
++ li r3,ENOSYS
++ b JUMPTARGET(__syscall_error)
++ END (__swapcontext_stub)
++
++compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1)
++
++#endif
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h 2003-06-18 13:37:33.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h 2003-09-11 16:48:08.000000000 +1000
+@@ -24,7 +24,11 @@
+ #define _UC_LINK 4
+ #define _UC_STACK_SP 8
+ #define _UC_STACK_SIZE 16
+-#define _UC_SIGMASK 64
+-#define _UC_GREGS 192
+-#define _UC_FREGS 384
+-#define _UC_VREGS 656
++#define _UC_REGS_PTR 48
++#define _UC_SIGMASK 52
++#define _UC_REG_SPACE 180
++
++/* offsets within mcontext_t */
++#define _UC_GREGS 0
++#define _UC_FREGS 192
++#define _UC_VREGS 464
+--- cvs/libc/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h 2003-07-04 10:12:48.000000000 +1000
++++ libc/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h 2003-09-11 16:31:52.000000000 +1000
+@@ -74,14 +74,40 @@
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ #if __WORDSIZE == 32
+- /* These fields are for backwards compatibility. */
++ /*
++ * These fields are set up this way to maximize source and
++ * binary compatibility with code written for the old
++ * ucontext_t definition, which didn't include space for the
++ * registers.
++ *
++ * Different versions of the kernel have stored the registers on
++ * signal delivery at different offsets from the ucontext struct.
++ * Programs should thus use the uc_mcontext.uc_regs pointer to
++ * find where the registers are actually stored. The registers
++ * will be stored within the ucontext_t struct but not necessarily
++ * at a fixed address. As a side-effect, this lets us achieve
++ * 16-byte alignment for the register storage space if the
++ * Altivec registers are to be saved, without requiring 16-byte
++ * alignment on the whole ucontext_t.
++ *
++ * The uc_mcontext.regs field is included for source compatibility
++ * with programs written against the older ucontext_t definition,
++ * and its name should therefore not change. The uc_pad field
++ * is for binary compatibility with programs compiled against the
++ * old ucontext_t; it ensures that uc_mcontext.regs and uc_sigmask
++ * are at the same offset as previously.
++ */
+ int uc_pad[7];
+- mcontext_t *uc_regs;
+- unsigned int uc_oldsigmask[2];
+- int uc_pad2;
+-#endif
++ union uc_regs_ptr {
++ struct pt_regs *regs;
++ mcontext_t *uc_regs;
++ } uc_mcontext;
++ sigset_t uc_sigmask;
++ char uc_reg_space[sizeof(mcontext_t) + 12]; /* last for extensibility */
++#else /* 64-bit */
+ sigset_t uc_sigmask;
+ mcontext_t uc_mcontext; /* last for extensibility */
++#endif
+ } ucontext_t;
+
+ #endif /* sys/ucontext.h */