path: root/arch/or1k/crt_arch.h
diff options
authorStefan Kristiansson <>2014-07-17 22:09:10 +0300
committerRich Felker <>2014-07-18 14:10:23 -0400
commit200d15479c0bc48471ee7b8e538ce33af990f82e (patch)
tree864cc38895b9277384ed3a956f4ad324de2c4455 /arch/or1k/crt_arch.h
parent7bece9c2095ee81f14b1088f6b0ba2f37fecb283 (diff)
add or1k (OpenRISC 1000) architecture port
With the exception of a fenv implementation, the port is fully featured. The port has been tested in or1ksim, the golden reference functional simulator for OpenRISC 1000. It passes all libc-test tests (except the math tests that requires a fenv implementation). The port assumes an or1k implementation that has support for atomic instructions (l.lwa/l.swa). Although it passes all the libc-test tests, the port is still in an experimental state, and has yet experienced very little 'real-world' use.
Diffstat (limited to 'arch/or1k/crt_arch.h')
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/or1k/crt_arch.h b/arch/or1k/crt_arch.h
new file mode 100644
index 00000000..0f381d2d
--- /dev/null
+++ b/arch/or1k/crt_arch.h
@@ -0,0 +1,11 @@
+__asm__("\ _start \n\
+.align 4 \n\
+_start: \n\
+ l.ori r3, r1, 0 \n\
+ l.addi r2, r0, -8 \n\
+ l.and r1, r1, r2 \n\
+ l.addi r1, r1, -8 \n\
+ l.jal __cstart \n\
+ l.ori r2, r0, 0 \n\