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authorAndreas Jaeger <aj@suse.de>2003-05-07 13:38:40 +0000
committerAndreas Jaeger <aj@suse.de>2003-05-07 13:38:40 +0000
commitc99876181c11c8a2df40eed8dc95c0d659044410 (patch)
treeb7a3a6d2c6b79291eac825ca5c2996b6f8101e29
parent14a2bd4b6d7a6fff5b4f6916af7eed796b919153 (diff)
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Add DWARF2 unwind information.
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/syscall.S29
1 files changed, 28 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/syscall.S b/sysdeps/unix/sysv/linux/x86_64/syscall.S
index 03144ce832..486583630d 100644
--- a/sysdeps/unix/sysv/linux/x86_64/syscall.S
+++ b/sysdeps/unix/sysv/linux/x86_64/syscall.S
@@ -28,7 +28,7 @@
 
 	.text
 ENTRY (syscall)
-
+.LFB1:
 	movq %rdi, %rax		/* Syscall number -> rax.  */
 	movq %rsi, %rdi		/* shift arg1 - arg5.  */
 	movq %rdx, %rsi
@@ -39,6 +39,33 @@ ENTRY (syscall)
 	cmpq $-4095, %rax	/* Check %rax for error.  */
 	jae SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 L(pseudo_end):
+.LFE1:
 	ret			/* Return to caller.  */
 
 PSEUDO_END (syscall)
+
+        .section        .eh_frame,"aw",@progbits
+.Lframe1:
+        .long   .LECIE1-.LSCIE1 # Length of Common Information Entry
+.LSCIE1:
+        .long   0x0     # CIE Identifier Tag
+        .byte   0x1     # CIE Version
+        .ascii "\0"     # CIE Augmentation
+        .uleb128 0x1    # CIE Code Alignment Factor
+        .sleb128 -8     # CIE Data Alignment Factor
+        .byte   0x10    # CIE RA Column
+        .byte   0xc     # DW_CFA_def_cfa
+        .uleb128 0x7
+        .uleb128 0x8
+        .byte   0x90    # DW_CFA_offset, column 0x10
+        .uleb128 0x1
+        .align 8
+.LECIE1:
+.LSFDE1:
+        .long   .LEFDE1-.LASFDE1        # FDE Length
+.LASFDE1:
+        .long   .LASFDE1-.Lframe1       # FDE CIE offset
+        .quad   .LFB1   # FDE initial location
+        .quad   .LFE1-.LFB1     # FDE address range
+        .align 8
+.LEFDE1: