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Diffstat (limited to 'sys/amd64/linux32/linux32_locore.s')
-rw-r--r--sys/amd64/linux32/linux32_locore.s45
1 files changed, 45 insertions, 0 deletions
diff --git a/sys/amd64/linux32/linux32_locore.s b/sys/amd64/linux32/linux32_locore.s
new file mode 100644
index 000000000000..6c3d2082e87a
--- /dev/null
+++ b/sys/amd64/linux32/linux32_locore.s
@@ -0,0 +1,45 @@
+/* $FreeBSD$ */
+
+#include "linux32_assym.h" /* system definitions */
+#include <machine/asmacros.h> /* miscellaneous asm macros */
+
+#include <amd64/linux32/linux32_syscall.h> /* system call numbers */
+
+.text
+.code32
+
+NON_GPROF_ENTRY(linux_sigcode)
+ call *LINUX_SIGF_HANDLER(%esp)
+ leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */
+ movl LINUX_SC_GS(%ebx),%gs
+ movl LINUX_SC_FS(%ebx),%fs
+ movl LINUX_SC_ES(%ebx),%es
+ movl LINUX_SC_DS(%ebx),%ds
+ movl %esp, %ebx /* pass sigframe */
+ push %eax /* fake ret addr */
+ movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */
+ int $0x80 /* enter kernel with args */
+0: jmp 0b
+ ALIGN_TEXT
+/* XXXXX */
+linux_rt_sigcode:
+ call *LINUX_RT_SIGF_HANDLER(%esp)
+ leal LINUX_RT_SIGF_UC(%esp),%ebx /* linux ucp */
+ movl LINUX_SC_GS(%ebx),%gs
+ movl LINUX_SC_FS(%ebx),%fs
+ movl LINUX_SC_ES(%ebx),%es
+ movl LINUX_SC_DS(%ebx),%ds
+ push %eax /* fake ret addr */
+ movl $LINUX_SYS_linux_rt_sigreturn,%eax /* linux_rt_sigreturn() */
+ int $0x80 /* enter kernel with args */
+0: jmp 0b
+ ALIGN_TEXT
+/* XXXXX */
+linux_esigcode:
+
+ .data
+ .globl linux_szsigcode, linux_sznonrtsigcode
+linux_szsigcode:
+ .long linux_esigcode-linux_sigcode
+linux_sznonrtsigcode:
+ .long linux_rt_sigcode-linux_sigcode