diff options
| author | Thomas Schwinge <thomas@codesourcery.com> | 2012-06-23 12:11:13 +0200 |
|---|---|---|
| committer | Thomas Schwinge <thomas@codesourcery.com> | 2012-06-23 12:11:13 +0200 |
| commit | 58f902b8d8cd47e8f4f2fcd64721a6289400422e (patch) | |
| tree | 277378f362df2bfad4fd4b8758136a69bb05b267 /sysdeps/unix/sysv/linux/sh/____longjmp_chk.S | |
| parent | 1518f58b6120289e69aeba9426eca9234cd9a200 (diff) | |
| download | glibc-58f902b8d8cd47e8f4f2fcd64721a6289400422e.tar.gz glibc-58f902b8d8cd47e8f4f2fcd64721a6289400422e.tar.xz glibc-58f902b8d8cd47e8f4f2fcd64721a6289400422e.zip | |
SH: Preserve more registers for frame unwinding purposes, add CFI directives.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/____longjmp_chk.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/____longjmp_chk.S | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S b/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S index bcf828bc03..d74caa21b8 100644 --- a/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S +++ b/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S @@ -32,9 +32,16 @@ longjmp_msg: # define CALL_FAIL \ mov.l .Lfail, r1; \ mov.l .Lstr, r4; \ + mov.l r12, @-r15; \ + cfi_remember_state; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (r12, 0); \ mova .Lgot, r0; \ mov.l .Lgot, r12; \ add r0, r12; \ + sts.l pr, @-r15; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (pr, 0); \ bsrf r1; \ add r12, r4; \ .Lfail0: \ @@ -45,11 +52,16 @@ longjmp_msg: .Lstr: \ .long longjmp_msg@GOTOFF; \ .Lfail: \ - .long __GI___fortify_fail@PLT-(.Lfail0-.); + .long __GI___fortify_fail@PLT-(.Lfail0-.); \ + cfi_restore_state; #else # define CALL_FAIL \ mov.l .Lfail, r1; \ mov.l .Lstr, r4; \ + sts.l pr, @-r15; \ + cfi_remember_state; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (pr, 0); \ jsr @r1; \ nop; \ /* Unreachable. */ \ @@ -57,7 +69,8 @@ longjmp_msg: .Lstr: \ .long longjmp_msg; \ .Lfail: \ - .long __fortify_fail; + .long __fortify_fail; \ + cfi_restore_state; #endif #define CHECK_SP(reg) \ |