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authorMike Frysinger <vapier@gentoo.org>2005-08-14 13:27:46 +0000
committerMike Frysinger <vapier@gentoo.org>2005-08-14 13:27:46 +0000
commit3e8c046f98134be9c6ddd954141b6b13bf919199 (patch)
treeebb0dd6986b5baa76b7fef83121b5e9ca9a383f8 /libc/sysdeps/linux/arm/syscall.c
parent78b940333901de079d3a0de702441530939ec501 (diff)
import thumb support from jbowler in Bug 385
Diffstat (limited to 'libc/sysdeps/linux/arm/syscall.c')
-rw-r--r--libc/sysdeps/linux/arm/syscall.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/syscall.c b/libc/sysdeps/linux/arm/syscall.c
index 9938abe03..9f1e9928c 100644
--- a/libc/sysdeps/linux/arm/syscall.c
+++ b/libc/sysdeps/linux/arm/syscall.c
@@ -26,6 +26,7 @@
long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
{
+#if !defined(__thumb__)
register long _r0 asm("r0")=(long)(sysnum);
register long _r6 asm("r6")=(long)(f);
register long _r5 asm("r5")=(long)(e);
@@ -40,6 +41,21 @@ long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
"r"(_r2), "r"(_r3), "r"(_r4), "r"(_r5),
"r"(_r6)
: "memory");
+#else
+ register long _r7 asm("r7")=(long)(sysnum);
+ register long _r5 asm("r5")=(long)(f);
+ register long _r4 asm("r4")=(long)(e);
+ register long _r3 asm("r3")=(long)(d);
+ register long _r2 asm("r2")=(long)(c);
+ register long _r1 asm("r1")=(long)(b);
+ register long _r0 asm("r0")=(long)(a);
+ asm volatile(
+ "swi 0"
+ : "=r"(_r0)
+ : "r"(_r0), "r"(_r1), "r"(_r2), "r"(_r3),
+ "r"(_r4), "r"(_r5), "r"(_r7)
+ : "memory");
+#endif
if(_r0 >=(unsigned long) -4095) {
long err = _r0;
(*__errno_location())=(-err);