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authorcyrus <cyrus@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-02-28 01:29:00 +0000
committercyrus <cyrus@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-02-28 01:29:00 +0000
commitd4331562d788729ca2a61182e2814328b5b4c137 (patch)
treefee57ac1e87145b6236d383f80bd96884237351c /toolchain/uClibc/patches/160-mips_syscall.patch
parentadc3f3a1c54ba50ca108e01cf1a28f5fbc7c707d (diff)
Upstream fix for syscall() not setting errno on errors on MIPS
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14689 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'toolchain/uClibc/patches/160-mips_syscall.patch')
-rw-r--r--toolchain/uClibc/patches/160-mips_syscall.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/toolchain/uClibc/patches/160-mips_syscall.patch b/toolchain/uClibc/patches/160-mips_syscall.patch
new file mode 100644
index 000000000..c5e5f6b46
--- /dev/null
+++ b/toolchain/uClibc/patches/160-mips_syscall.patch
@@ -0,0 +1,31 @@
+--- uClibc-0.9.29.orig/libc/sysdeps/linux/mips/syscall.S 2009-02-27 19:26:57.420288905 +0100
++++ uClibc-0.9.29/libc/sysdeps/linux/mips/syscall.S 2009-02-27 19:43:18.000000000 +0100
+@@ -29,6 +29,9 @@
+ .type syscall,@function
+ .ent syscall
+ syscall:
++#ifdef __PIC__
++ SETUP_GP
++#endif
+ move v0, a0 /* Load system call number from first arg. */
+ move a0, a1 /* Move the next three args up a register. */
+ move a1, a2
+@@ -60,6 +63,18 @@
+ #else
+ addiu sp,sp,32
+ #endif
++ bnez a3, 1f
+ j ra /* Return to caller. */
++1:
++ move a0,v0 /* Pass return val to C function. */
++
++#ifdef __PIC__
++ SETUP_GP64(v0, syscall)
++ PTR_LA t9, __syscall_error
++ RESTORE_GP64
++ jr t9
++#else
++ j __syscall_error
++#endif
+ .end syscall
+ .size syscall,.-syscall