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-rw-r--r--nptl/ChangeLog13
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h60
2 files changed, 47 insertions, 26 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 9f4063016f..64dc17f254 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,16 @@
+2013-12-04 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
+
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
+ (CANCEL_FRAMESIZE, CANCEL_PARM_SAVE): New macros to save parameters
+ into our own stack frame instead of the caller's.
+ (PSEUDO): Use them. Use symbolic stack frame offsets.
+ (DOCARGS_1, UNDOCARGS_1): Use CANCEL_PARM_SAVE.
+ (DOCARGS_2, UNDOCARGS_2): Likewise.
+ (DOCARGS_3, UNDOCARGS_3): Likewise.
+ (DOCARGS_4, UNDOCARGS_4): Likewise.
+ (DOCARGS_5, UNDOCARGS_5): Likewise.
+ (DOCARGS_6, UNDOCARGS_6): Likewise.
+
2013-11-26 Ondřej Bílka <neleai@seznam.cz>
* sysdeps/i386/tls.h: Use __glibc_reserved instead __unused.
* sysdeps/x86_64/tls.h: Likewise.
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
index 51e021df59..d711dc6cf1 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
@@ -31,6 +31,14 @@
# define DASHDASHPFX(str) __##str
# endif
+#if _CALL_ELF == 2
+#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16+48)
+#define CANCEL_PARM_SAVE (FRAME_MIN_SIZE+16)
+#else
+#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16)
+#define CANCEL_PARM_SAVE (CANCEL_FRAMESIZE+FRAME_PARM_SAVE)
+#endif
+
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
.section ".text"; \
@@ -44,52 +52,52 @@
PSEUDO_RET; \
.size DASHDASHPFX(syscall_name##_nocancel),.-DASHDASHPFX(syscall_name##_nocancel); \
.Lpseudo_cancel: \
- stdu 1,-128(1); \
- cfi_adjust_cfa_offset (128); \
+ stdu 1,-CANCEL_FRAMESIZE(1); \
+ cfi_adjust_cfa_offset (CANCEL_FRAMESIZE); \
mflr 9; \
- std 9,128+16(1); \
- cfi_offset (lr, 16); \
+ std 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \
+ cfi_offset (lr, FRAME_LR_SAVE); \
DOCARGS_##args; /* save syscall args around CENABLE. */ \
CENABLE; \
- std 3,112(1); /* store CENABLE return value (MASK). */ \
+ std 3,FRAME_MIN_SIZE(1); /* store CENABLE return value (MASK). */ \
UNDOCARGS_##args; /* restore syscall args. */ \
DO_CALL (SYS_ify (syscall_name)); \
mfcr 0; /* save CR/R3 around CDISABLE. */ \
- std 3,120(1); \
- std 0,128+8(1); \
- cfi_offset (cr, 8); \
- ld 3,112(1); /* pass MASK to CDISABLE. */ \
+ std 3,FRAME_MIN_SIZE+8(1); \
+ std 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); \
+ cfi_offset (cr, FRAME_CR_SAVE); \
+ ld 3,FRAME_MIN_SIZE(1); /* pass MASK to CDISABLE. */ \
CDISABLE; \
- ld 9,128+16(1); \
- ld 0,128+8(1); /* restore CR/R3. */ \
- ld 3,120(1); \
+ ld 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \
+ ld 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); /* restore CR/R3. */ \
+ ld 3,FRAME_MIN_SIZE+8(1); \
mtlr 9; \
mtcr 0; \
- addi 1,1,128; \
- cfi_adjust_cfa_offset (-128); \
+ addi 1,1,CANCEL_FRAMESIZE; \
+ cfi_adjust_cfa_offset (-CANCEL_FRAMESIZE); \
cfi_restore (lr); \
cfi_restore (cr)
# define DOCARGS_0
# define UNDOCARGS_0
-# define DOCARGS_1 std 3,128+48(1); DOCARGS_0
-# define UNDOCARGS_1 ld 3,128+48(1); UNDOCARGS_0
+# define DOCARGS_1 std 3,CANCEL_PARM_SAVE(1); DOCARGS_0
+# define UNDOCARGS_1 ld 3,CANCEL_PARM_SAVE(1); UNDOCARGS_0
-# define DOCARGS_2 std 4,128+56(1); DOCARGS_1
-# define UNDOCARGS_2 ld 4,128+56(1); UNDOCARGS_1
+# define DOCARGS_2 std 4,CANCEL_PARM_SAVE+8(1); DOCARGS_1
+# define UNDOCARGS_2 ld 4,CANCEL_PARM_SAVE+8(1); UNDOCARGS_1
-# define DOCARGS_3 std 5,128+64(1); DOCARGS_2
-# define UNDOCARGS_3 ld 5,128+64(1); UNDOCARGS_2
+# define DOCARGS_3 std 5,CANCEL_PARM_SAVE+16(1); DOCARGS_2
+# define UNDOCARGS_3 ld 5,CANCEL_PARM_SAVE+16(1); UNDOCARGS_2
-# define DOCARGS_4 std 6,128+72(1); DOCARGS_3
-# define UNDOCARGS_4 ld 6,128+72(1); UNDOCARGS_3
+# define DOCARGS_4 std 6,CANCEL_PARM_SAVE+24(1); DOCARGS_3
+# define UNDOCARGS_4 ld 6,CANCEL_PARM_SAVE+24(1); UNDOCARGS_3
-# define DOCARGS_5 std 7,128+80(1); DOCARGS_4
-# define UNDOCARGS_5 ld 7,128+80(1); UNDOCARGS_4
+# define DOCARGS_5 std 7,CANCEL_PARM_SAVE+32(1); DOCARGS_4
+# define UNDOCARGS_5 ld 7,CANCEL_PARM_SAVE+32(1); UNDOCARGS_4
-# define DOCARGS_6 std 8,128+88(1); DOCARGS_5
-# define UNDOCARGS_6 ld 8,128+88(1); UNDOCARGS_5
+# define DOCARGS_6 std 8,CANCEL_PARM_SAVE+40(1); DOCARGS_5
+# define UNDOCARGS_6 ld 8,CANCEL_PARM_SAVE+40(1); UNDOCARGS_5
# ifdef IS_IN_libpthread
# ifdef SHARED