patches/glibc/2.5.1/190-alpha-sigsuspend.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 744 4bf8448536d5
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
yann@611
     1
--- glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S.orig	2006-10-22 22:17:01.000000000 +0200
yann@611
     2
+++ glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S	2006-10-22 22:18:05.000000000 +0200
yann@611
     3
@@ -31,3 +31,21 @@
yann@611
     4
 libc_hidden_def (__sigsuspend)
yann@611
     5
 weak_alias (__sigsuspend, sigsuspend)
yann@611
     6
 strong_alias (__sigsuspend, __libc_sigsuspend)
yann@611
     7
+
yann@611
     8
+#ifndef NO_CANCELLATION
yann@611
     9
+	.globl __sigsuspend_nocancel;
yann@611
    10
+	.align 4;
yann@611
    11
+	.type __sigsuspend_nocancel, @function;
yann@611
    12
+	.usepv __sigsuspend_nocancel, std;
yann@611
    13
+	cfi_startproc;
yann@611
    14
+__LABEL(__sigsuspend_nocancel)
yann@611
    15
+	ldgp    gp, 0(pv);
yann@611
    16
+	PSEUDO_PROF;
yann@611
    17
+	PSEUDO_PREPARE_ARGS
yann@611
    18
+	lda     v0, SYS_ify(sigsuspend);
yann@611
    19
+	call_pal PAL_callsys;
yann@611
    20
+	bne     a3, SYSCALL_ERROR_LABEL;
yann@611
    21
+	ret;
yann@611
    22
+	cfi_endproc;
yann@611
    23
+	.size __sigsuspend_nocancel, .-__sigsuspend_nocancel
yann@611
    24
+#endif