Add CFI information for MIPS assembly sources.

10 files changed, 55 insertions, 21 deletions

diff --git a/ports/sysdeps/unix/sysv/linux/mips/clone.S b/ports/sysdeps/unix/sysv/linux/mips/clone.S
index 72360f9621..ef801882a9 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/clone.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/clone.S
@@ -47,7 +47,8 @@ NESTED(__clone,4*SZREG,sp)
 	SETUP_GP
 #endif
 	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64 (GPOFF, __clone)
+	cfi_adjust_cfa_offset (FRAMESZ)
+	SETUP_GP64_STACK (GPOFF, __clone)
 #ifdef __PIC__
 	SAVE_GP (GPOFF)
 #endif
@@ -88,26 +89,35 @@ NESTED(__clone,4*SZREG,sp)
 
 	/* Do the system call */
 	li		v0,__NR_clone
+	cfi_endproc
 	syscall
 
 	bnez		a3,L(error)
 	beqz		v0,L(thread_start)
 
 	/* Successful return from the parent */
-	RESTORE_GP64
+	cfi_startproc
+	cfi_adjust_cfa_offset (FRAMESZ)
+	SETUP_GP64_STACK_CFI (GPOFF)
+	cfi_remember_state
+	RESTORE_GP64_STACK
 	PTR_ADDU	sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	ret
 
 	/* Something bad happened -- no child created */
 L(error):
+	cfi_restore_state
 #ifdef __PIC__
 	PTR_LA		t9,__syscall_error
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDU	sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	jr		t9
 #else
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDU	sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	j		__syscall_error
 #endif
 	END(__clone)
@@ -118,6 +128,7 @@ L(error):
 
 ENTRY(__thread_start)
 L(thread_start):
+	cfi_undefined ($31)
 	/* cp is already loaded.  */
 	SAVE_GP (GPOFF)
 	/* The stackframe has been created on entry of clone().  */
diff --git a/ports/sysdeps/unix/sysv/linux/mips/getcontext.S b/ports/sysdeps/unix/sysv/linux/mips/getcontext.S
index 0e3d35b54f..7af6825a4a 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/getcontext.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/getcontext.S
@@ -54,7 +54,8 @@ NESTED (__getcontext, FRAMESZ, ra)
 # endif
 
 	PTR_ADDIU sp, -FRAMESZ
-	SETUP_GP64 (GPOFF, __getcontext)
+	cfi_adjust_cfa_offset (FRAMESZ)
+	SETUP_GP64_STACK (GPOFF, __getcontext)
 	SAVE_GP (GPOFF)
 
 #else  /* ! __PIC__ */
@@ -124,19 +125,23 @@ NESTED (__getcontext, FRAMESZ, ra)
 	li	v0, SYS_ify (rt_sigprocmask)
 	syscall
 	bnez	a3, 99f
+	cfi_remember_state
 
 #ifdef __PIC__
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDIU sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 #endif
 	move	v0, zero
 	jr	ra
 
 99:
+	cfi_restore_state
 #ifdef __PIC__
 	PTR_LA	t9, JUMPTARGET (__syscall_error)
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDIU sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	jr	t9
 
 #else  /* ! __PIC__ */
diff --git a/ports/sysdeps/unix/sysv/linux/mips/makecontext.S b/ports/sysdeps/unix/sysv/linux/mips/makecontext.S
index 65f1a6aaa2..d89db01677 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/makecontext.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/makecontext.S
@@ -63,9 +63,10 @@ NESTED (__makecontext, FRAMESZ, ra)
 #endif
 
 	PTR_ADDIU sp, -FRAMESZ
+	cfi_adjust_cfa_offset (FRAMESZ)
 
 #ifdef __PIC__
-	SETUP_GP64 (GPOFF, __makecontext)
+	SETUP_GP64_STACK (GPOFF, __makecontext)
 	SAVE_GP (GPOFF)
 #endif
 
@@ -145,8 +146,9 @@ NESTED (__makecontext, FRAMESZ, ra)
 	REG_S	a1, MCONTEXT_PC(a0)
 
 #ifdef __PIC__
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDIU sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 #endif
 	jr	ra
 
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
index b3bed4663c..c5f1c350ed 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S
@@ -31,9 +31,9 @@ ENTRY (__ioctl)
 	ret
 
 L(error):
-	SETUP_GP64 (a0, __ioctl)
+	SETUP_GP64_REG (a0, __ioctl)
 	PTR_LA t9, __syscall_error
-	RESTORE_GP64
+	RESTORE_GP64_REG
 	jr t9
 
 PSEUDO_END (__ioctl)
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h b/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
index 354eba2f3d..6565225662 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
@@ -57,6 +57,7 @@
     cfi_same_value (gp);						      \
     RESTORESTK;								      \
     ret;								      \
+    cfi_endproc;							      \
   .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
   ENTRY (name)								      \
     SAVESTK;								      \
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/syscall.S b/ports/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
index 839276d7ad..850025c635 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/syscall.S
@@ -30,7 +30,9 @@ NESTED (syscall, SZREG, ra)
 	.mask 0x00010000, -SZREG
 	.fmask 0x00000000, 0
 	PTR_ADDIU sp, -SZREG
+	cfi_adjust_cfa_offset (SZREG)
 	REG_S s0, (sp)
+	cfi_rel_offset (s0, 0)
 
 	move s0, a0
 	move a0, a1		/* shift arg1 - arg7.  */
@@ -45,15 +47,17 @@ NESTED (syscall, SZREG, ra)
 	syscall			/* Do the system call.  */
 
 	REG_L s0, (sp)
+	cfi_restore (s0)
 	PTR_ADDIU sp, SZREG
+	cfi_adjust_cfa_offset (-SZREG)
 	bne a3, zero, L(error)
 
 	ret
 
 L(error):
-	SETUP_GP64 (a0, syscall)
+	SETUP_GP64_REG (a0, syscall)
 	PTR_LA t9, __syscall_error
-	RESTORE_GP64
+	RESTORE_GP64_REG
 	jr t9
 
 END (syscall)
diff --git a/ports/sysdeps/unix/sysv/linux/mips/nptl/sysdep-cancel.h b/ports/sysdeps/unix/sysv/linux/mips/nptl/sysdep-cancel.h
index e1dd672528..1e0bfedecf 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/nptl/sysdep-cancel.h
+++ b/ports/sysdeps/unix/sysv/linux/mips/nptl/sysdep-cancel.h
@@ -52,6 +52,7 @@
     .set reorder;							      \
     bne a3, zero, 99b;					       		      \
     ret;								      \
+    cfi_endproc;							      \
   .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
   ENTRY (name)								      \
     .set noreorder;							      \
diff --git a/ports/sysdeps/unix/sysv/linux/mips/setcontext.S b/ports/sysdeps/unix/sysv/linux/mips/setcontext.S
index 42f709d846..6ed355c97f 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/setcontext.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/setcontext.S
@@ -56,9 +56,10 @@ NESTED (__setcontext, FRAMESZ, ra)
 #endif
 
 	PTR_ADDIU sp, -FRAMESZ
+	cfi_adjust_cfa_offset (FRAMESZ)
 
 #ifdef __PIC__
-	SETUP_GP64 (GPOFF, __setcontext)
+	SETUP_GP64_STACK (GPOFF, __setcontext)
 	SAVE_GP (GPOFF)
 #endif
 
@@ -152,6 +153,7 @@ NESTED (__setcontext, FRAMESZ, ra)
 	   and call the signal return syscall as if a signal
 	   handler exited normally.  */
 	PTR_ADDIU sp, -((RT_SIGFRAME_SIZE + ALSZ) & ALMASK)
+	cfi_adjust_cfa_offset ((RT_SIGFRAME_SIZE + ALSZ) & ALMASK)
 
 	/* Only ucontext is referred to from rt_sigreturn,
 	   copy it.  */
@@ -175,11 +177,13 @@ NESTED (__setcontext, FRAMESZ, ra)
 	   path.  Successful rt_sigreturn never returns to
 	   its calling place.  */
 	PTR_ADDIU sp, ((RT_SIGFRAME_SIZE + ALSZ) & ALMASK)
+	cfi_adjust_cfa_offset (-((RT_SIGFRAME_SIZE + ALSZ) & ALMASK))
 99:
 #ifdef __PIC__
 	PTR_LA	t9, JUMPTARGET (__syscall_error)
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDIU sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	jr	t9
 
 #else  /* ! __PIC__ */
diff --git a/ports/sysdeps/unix/sysv/linux/mips/swapcontext.S b/ports/sysdeps/unix/sysv/linux/mips/swapcontext.S
index d965f3919b..ddd3b28fde 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/swapcontext.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/swapcontext.S
@@ -63,7 +63,8 @@ NESTED (__swapcontext, FRAMESZ, ra)
 # endif
 
 	PTR_ADDIU sp, -FRAMESZ
-	SETUP_GP64 (GPOFF, __swapcontext)
+	cfi_adjust_cfa_offset (FRAMESZ)
+	SETUP_GP64_STACK (GPOFF, __swapcontext)
 	SAVE_GP (GPOFF)
 
 #else  /* ! __PIC__ */
@@ -198,8 +199,9 @@ NESTED (__swapcontext, FRAMESZ, ra)
 99:
 #ifdef __PIC__
 	PTR_LA	t9, JUMPTARGET (__syscall_error)
-	RESTORE_GP64
+	RESTORE_GP64_STACK
 	PTR_ADDIU sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 	jr	t9
 
 #else  /* ! __PIC__ */
diff --git a/ports/sysdeps/unix/sysv/linux/mips/vfork.S b/ports/sysdeps/unix/sysv/linux/mips/vfork.S
index b9503c3943..d627923528 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/vfork.S
+++ b/ports/sysdeps/unix/sysv/linux/mips/vfork.S
@@ -42,7 +42,8 @@ NESTED(__vfork,FRAMESZ,sp)
 	SETUP_GP
 #endif
 	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64 (a5, __vfork)
+	cfi_adjust_cfa_offset (FRAMESZ)
+	SETUP_GP64_REG (a5, __vfork)
 #ifdef __PIC__
 	SAVE_GP (GPOFF)
 #endif
@@ -63,6 +64,7 @@ NESTED(__vfork,FRAMESZ,sp)
 #endif
 
 	PTR_ADDU	sp, FRAMESZ
+	cfi_adjust_cfa_offset (-FRAMESZ)
 
 	SAVE_PID
 
@@ -75,20 +77,22 @@ NESTED(__vfork,FRAMESZ,sp)
 
 	RESTORE_PID
 
+	cfi_remember_state
 	bnez		a3,L(error)
 
 	/* Successful return from the parent or child.  */
-	RESTORE_GP64
+	RESTORE_GP64_REG
 	ret
 
 	/* Something bad happened -- no child created.  */
 L(error):
+	cfi_restore_state
 #ifdef __PIC__
 	PTR_LA		t9, __syscall_error
-	RESTORE_GP64
+	RESTORE_GP64_REG
 	jr		t9
 #else
-	RESTORE_GP64
+	RESTORE_GP64_REG
 	j		__syscall_error
 #endif
 	END(__vfork)