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275e6e1ee2
To make some half-assembly stubs compile, disable various "hardened" GCC features: *) we can't make it build PIC code as we need %ebx to do syscalls and GCC wants it free for PIC *) we can't leave stack protection as the stub is moved (not relocated!) in memory so the RIP-relative access to the canary tries reading from an unmapped address and causes a segfault, since we move the stub of various megabytes (the exact amount will be decided at runtime) away from the link-time address. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| bugs.c | ||
| checksum.S | ||
| delay.c | ||
| fault.c | ||
| ksyms.c | ||
| ldt.c | ||
| Makefile | ||
| ptrace_user.c | ||
| ptrace.c | ||
| sigcontext.c | ||
| signal.c | ||
| stub_segv.c | ||
| stub.S | ||
| sys_call_table.S | ||
| syscalls.c | ||
| sysrq.c | ||
| tls.c | ||
| unmap.c | ||
| user-offsets.c | ||