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Replace sbrk with mmap since this commit disables sbrk area
for FDPIC MMU-less platform:
fs/binfmt_elf_fdpic.c: fix brk area overlap with stack on NOMMU
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/fs/binfmt_elf_fdpic.c?id=4ac313111018cb44ecc250445de5ccb93026a980
* libpthread/nptl/sysdeps/generic/libc-tls.c (__libc_setup_tls):
Handle __FDPIC__.
Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
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busybox init checks it has pid 1, but getpid() returns another value
when building busybox statically. This is because the corresponding
area is not cleared when allocated (it is allocated with
MAP_UNINITIALIZED, whose behavior depends on the Linux kernel's
CONFIG_MMAP_ALLOW_UNINITIALIZED).
This patch fixes the problem by explicitly clearing the memory area.
* libpthread/nptl/sysdeps/generic/libc-tls.c (__libc_tls_setup):
Clear tlsblock.
Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
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phdr->p_vaddr of TLS segment is not a valid value for FDPIC so we can
either translate phdr->p_vaddr using loadmap (not easy here) or use a
new linker script defined symbol, whih this patch does.
* libpthread/nptl/sysdeps/generic/libc-tls.c (__tdata_start): Declare.
(__libc_setup_tls): Support __FDPIC__.
Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
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This matches a similar change made to glibc.
No functional changes here.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Add some missing prototypes
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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Add some missing prototypes
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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targetting arm,sh,i386,mips,sparc for now
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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