diff options
| author | Andrew Turner <andrew@FreeBSD.org> | 2013-07-21 12:47:33 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2013-07-21 12:47:33 +0000 |
| commit | f44fbb4c13de5f3b38dcc3aaa2acbcbd0329e66a (patch) | |
| tree | 8e2454523870301dec4c58a813c404d55d8de835 /lib/libc/arm/gen | |
| parent | 1addf6e47a2dd3157e6dbed6fc6272fbef4f3b94 (diff) | |
Teach siglongjmp about the VFP version of the setjmp buffer.
This fixes a bug where a call to sigsetjmp followed by siglongjmp may fail
when run on a machine with VFP enabled.
Notes
Notes:
svn path=/head/; revision=253518
Diffstat (limited to 'lib/libc/arm/gen')
| -rw-r--r-- | lib/libc/arm/gen/sigsetjmp.S | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libc/arm/gen/sigsetjmp.S b/lib/libc/arm/gen/sigsetjmp.S index 320c40da2e05..79f1f9d4cebe 100644 --- a/lib/libc/arm/gen/sigsetjmp.S +++ b/lib/libc/arm/gen/sigsetjmp.S @@ -57,8 +57,10 @@ ENTRY(sigsetjmp) WEAK_ALIAS(__siglongjmp, siglongjmp) ENTRY(siglongjmp) - ldr r2, .L_setjmp_magic - ldr r3, [r0] - teq r2, r3 + ldr r2, .L_setjmp_magic /* load magic */ + ldr r3, [r0] /* get magic from jmp_buf */ + bic r3, r3, #(_JB_MAGIC__SETJMP ^ _JB_MAGIC__SETJMP_VFP) + /* ignore VFP-ness of magic */ + teq r2, r3 /* magic correct? */ beq PIC_SYM(_C_LABEL(_longjmp), PLT) b PIC_SYM(_C_LABEL(longjmp), PLT) |