diff options
| author |   Alexey Neyman <stilor@att.net> | 2017-07-13 07:38:03 (GMT) |
|---|---|---|
| committer |   GitHub <noreply@github.com> | 2017-07-13 07:38:03 (GMT) |
| commit | 45c5bb0f484cba724be2c6105801dcce9a1a82d9 (patch) | |
| tree | 8fd1c8eaa2ef203009d72b6ca6348611dcc5ee1c /packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch | |
| parent | 8f8e131d566af1f577d8fb6e62e6f121b7955472 (diff) | |
| parent | b32fcf7c1eea890a2bd3f88487f818ba241aabb1 (diff) | |
Merge pull request #767 from stilor/packages
Packages
Diffstat (limited to 'packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch')
| -rw-r--r-- | packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch b/packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch new file mode 100644 index 0000000..c7f6182 --- /dev/null +++ b/packages/glibc-ports/2.14/120-i386-x86_64-revert-clone-cfi.patch @@ -0,0 +1,55 @@ +revert cfi additions to clone on i386/x86_64 to workaround problems in +gcc's unwinder code. this is not a bug in glibc, it triggers problems +elsewhere. this cfi code does not gain us a whole lot anyways. + +http://gcc.gnu.org/ml/gcc/2006-12/msg00293.html + +Index: sysdeps/unix/sysv/linux/i386/clone.S +=================================================================== +RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/i386/clone.S,v +retrieving revision 1.27 +retrieving revision 1.26 +diff -u -p -r1.27 -r1.26 + +diff -durN glibc-2.13.orig/sysdeps/unix/sysv/linux/i386/clone.S glibc-2.13/sysdeps/unix/sysv/linux/i386/clone.S +--- glibc-2.13.orig/sysdeps/unix/sysv/linux/i386/clone.S 2006-12-04 00:12:36.000000000 +0100 ++++ glibc-2.13/sysdeps/unix/sysv/linux/i386/clone.S 2009-11-13 00:49:45.000000000 +0100 +@@ -120,9 +120,6 @@ + ret + + L(thread_start): +- cfi_startproc; +- /* Clearing frame pointer is insufficient, use CFI. */ +- cfi_undefined (eip); + /* Note: %esi is zero. */ + movl %esi,%ebp /* terminate the stack frame */ + #ifdef RESET_PID +@@ -155,7 +152,6 @@ + jmp L(haspid) + .previous + #endif +- cfi_endproc; + + cfi_startproc + PSEUDO_END (BP_SYM (__clone)) +diff -durN glibc-2.13.orig/sysdeps/unix/sysv/linux/x86_64/clone.S glibc-2.13/sysdeps/unix/sysv/linux/x86_64/clone.S +--- glibc-2.13.orig/sysdeps/unix/sysv/linux/x86_64/clone.S 2006-12-04 00:12:36.000000000 +0100 ++++ glibc-2.13/sysdeps/unix/sysv/linux/x86_64/clone.S 2009-11-13 00:49:45.000000000 +0100 +@@ -89,9 +89,6 @@ + ret + + L(thread_start): +- cfi_startproc; +- /* Clearing frame pointer is insufficient, use CFI. */ +- cfi_undefined (rip); + /* Clear the frame pointer. The ABI suggests this be done, to mark + the outermost frame obviously. */ + xorl %ebp, %ebp +@@ -116,7 +113,6 @@ + /* Call exit with return value from function call. */ + movq %rax, %rdi + call HIDDEN_JUMPTARGET (_exit) +- cfi_endproc; + + cfi_startproc; + PSEUDO_END (BP_SYM (__clone)) |