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authorCarlos O'Donell <carlos@systemhalted.org>2012-10-29 23:31:55 -0400
committerCarlos O'Donell <carlos@systemhalted.org>2012-10-29 23:36:41 -0400
commit236bb0623dba86582ded9f89b8d79f362404f7a1 (patch)
treef17b0e484a41aea3a298dfbd77d8d55024e0f41c /ports/sysdeps/unix
parente22f413005ccb0080ef1f13e59a1bc8aa36105cb (diff)
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hppa: Add cfi direcvtives.
We add cfi directives to the syscall assembly.
Diffstat (limited to 'ports/sysdeps/unix')
-rw-r--r--ports/sysdeps/unix/sysv/linux/hppa/sysdep.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
index daf2eafdb5..1825d315b6 100644
--- a/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -120,12 +120,14 @@
.align ALIGNARG(4) ASM_LINE_SEP \
.export C_SYMBOL_NAME(name) ASM_LINE_SEP \
.type C_SYMBOL_NAME(name),@function ASM_LINE_SEP \
+ cfi_startproc ASM_LINE_SEP \
C_LABEL(name) ASM_LINE_SEP \
.PROC ASM_LINE_SEP \
.CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3 ASM_LINE_SEP \
.ENTRY ASM_LINE_SEP \
/* SAVE_RP says we do */ ASM_LINE_SEP \
stw %rp, -20(%sr0,%sp) ASM_LINE_SEP \
+ .cfi_offset 2, -20 ASM_LINE_SEP \
/*FIXME: Call mcount? (carefull with stack!) */
/* Some syscall wrappers do not call other functions, and
@@ -135,18 +137,21 @@
.align ALIGNARG(4) ASM_LINE_SEP \
.export C_SYMBOL_NAME(name) ASM_LINE_SEP \
.type C_SYMBOL_NAME(name),@function ASM_LINE_SEP \
+ cfi_startproc ASM_LINE_SEP \
C_LABEL(name) ASM_LINE_SEP \
.PROC ASM_LINE_SEP \
.CALLINFO FRAME=64,NO_CALLS,SAVE_RP,ENTRY_GR=3 ASM_LINE_SEP \
.ENTRY ASM_LINE_SEP \
/* SAVE_RP says we do */ ASM_LINE_SEP \
stw %rp, -20(%sr0,%sp) ASM_LINE_SEP \
+ .cfi_offset 2, -20 ASM_LINE_SEP \
/*FIXME: Call mcount? (carefull with stack!) */
#undef END
#define END(name) \
.EXIT ASM_LINE_SEP \
.PROCEND ASM_LINE_SEP \
+ cfi_endproc ASM_LINE_SEP \
.size C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name) ASM_LINE_SEP
/* If compiled for profiling, call `mcount' at the start
@@ -278,8 +283,12 @@
#define DO_CALL(syscall_name, args) \
/* Create a frame */ ASM_LINE_SEP \
stwm TREG, 64(%sp) ASM_LINE_SEP \
+ .cfi_offset TREG, 0 ASM_LINE_SEP \
+ .cfi_adjust_cfa_offset 64 ASM_LINE_SEP \
stw %sp, -4(%sp) ASM_LINE_SEP \
+ .cfi_offset 30, -4 ASM_LINE_SEP \
stw %r19, -32(%sp) ASM_LINE_SEP \
+ .cfi_offset 19, -32 ASM_LINE_SEP \
/* Save r19 */ ASM_LINE_SEP \
SAVE_PIC(TREG) ASM_LINE_SEP \
/* Do syscall, delay loads # */ ASM_LINE_SEP \
@@ -302,8 +311,10 @@
L(pre_end): ASM_LINE_SEP \
/* Restore our frame, restoring TREG */ ASM_LINE_SEP \
ldwm -64(%sp), TREG ASM_LINE_SEP \
+ .cfi_adjust_cfa_offset -64 ASM_LINE_SEP \
/* Restore return pointer */ ASM_LINE_SEP \
- ldw -20(%sp),%rp ASM_LINE_SEP
+ ldw -20(%sp),%rp ASM_LINE_SEP \
+ .cfi_restore 2 ASM_LINE_SEP
/* We do nothing with the return, except hand it back to someone else */
#undef DO_CALL_NOERRNO