diff options
| author | marcel <marcel@FreeBSD.org> | 1999-10-10 08:38:33 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 1999-10-10 08:38:33 +0000 |
| commit | bcf55ab2b8330859798393d6d66802ad0661dafd (patch) | |
| tree | 2e3131f1b83ebe1e10193c79df9e027d798fdbc3 /lib/libc/amd64 | |
| parent | 6f0c55764d0522b22e2aef4725b710af937ea577 (diff) | |
| download | FreeBSD-src-bcf55ab2b8330859798393d6d66802ad0661dafd.zip FreeBSD-src-bcf55ab2b8330859798393d6d66802ad0661dafd.tar.gz | |
\begin{quote}
setjmp() gets the jmp_buf pointer from the wrong place (the place
where the return address is) in the shlib case, and uses it (only)
to fetch the current signal mask to address (return_address + 28).
This address is normally read-only (I hope), so the sigprocmask()
call has no effect except to return an error code.
\end{quote}
Submitted by: bde
Diffstat (limited to 'lib/libc/amd64')
| -rw-r--r-- | lib/libc/amd64/gen/setjmp.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/amd64/gen/setjmp.S b/lib/libc/amd64/gen/setjmp.S index e70879a..4a85658 100644 --- a/lib/libc/amd64/gen/setjmp.S +++ b/lib/libc/amd64/gen/setjmp.S @@ -55,8 +55,8 @@ #include "SYS.h" ENTRY(setjmp) - PIC_PROLOGUE movl 4(%esp),%ecx + PIC_PROLOGUE leal 28(%ecx), %eax pushl %eax /* (sigset_t*)oset */ pushl $0 /* (sigset_t*)set */ |
