8d0b9dc9be
Beginning of cross-build fixes. Instead of expecting that mk_user_constants (compiled and executed on the build box) will see the sizeof, etc. for target box, we do what every architecture already does for asm-offsets. Namely, have user-offsets.c compiled *for* *target* into user-offsets.s and sed it into the header with relevant constants. We don't need to reinvent any wheels - all tools are already there. This patch deals with mk_user_constants. It doesn't assume any relationship between target and build environment anymore - we pick all defines we need from user-offsets.h. Later patches will deal with the rest of mk_... helpers in the same way. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
#include <stdio.h>
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#include <stddef.h>
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#include <signal.h>
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#define __FRAME_OFFSETS
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#include <asm/ptrace.h>
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#include <asm/user.h>
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#define DEFINE(sym, val) \
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asm volatile("\n->" #sym " %0 " #val : : "i" (val))
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#define OFFSET(sym, str, mem) \
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DEFINE(sym, offsetof(struct str, mem));
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void foo(void)
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{
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OFFSET(SC_RBX, sigcontext, rbx);
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OFFSET(SC_RCX, sigcontext, rcx);
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OFFSET(SC_RDX, sigcontext, rdx);
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OFFSET(SC_RSI, sigcontext, rsi);
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OFFSET(SC_RDI, sigcontext, rdi);
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OFFSET(SC_RBP, sigcontext, rbp);
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OFFSET(SC_RAX, sigcontext, rax);
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OFFSET(SC_R8, sigcontext, r8);
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OFFSET(SC_R9, sigcontext, r9);
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OFFSET(SC_R10, sigcontext, r10);
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OFFSET(SC_R11, sigcontext, r11);
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OFFSET(SC_R12, sigcontext, r12);
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OFFSET(SC_R13, sigcontext, r13);
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OFFSET(SC_R14, sigcontext, r14);
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OFFSET(SC_R15, sigcontext, r15);
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OFFSET(SC_IP, sigcontext, rip);
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OFFSET(SC_SP, sigcontext, rsp);
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OFFSET(SC_CR2, sigcontext, cr2);
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OFFSET(SC_ERR, sigcontext, err);
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OFFSET(SC_TRAPNO, sigcontext, trapno);
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OFFSET(SC_CS, sigcontext, cs);
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OFFSET(SC_FS, sigcontext, fs);
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OFFSET(SC_GS, sigcontext, gs);
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OFFSET(SC_EFLAGS, sigcontext, eflags);
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OFFSET(SC_SIGMASK, sigcontext, oldmask);
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#if 0
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OFFSET(SC_ORIG_RAX, sigcontext, orig_rax);
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OFFSET(SC_DS, sigcontext, ds);
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OFFSET(SC_ES, sigcontext, es);
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OFFSET(SC_SS, sigcontext, ss);
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#endif
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DEFINE(HOST_FRAME_SIZE, FRAME_SIZE);
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DEFINE(HOST_RBX, RBX);
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DEFINE(HOST_RCX, RCX);
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DEFINE(HOST_RDI, RDI);
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DEFINE(HOST_RSI, RSI);
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DEFINE(HOST_RDX, RDX);
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DEFINE(HOST_RBP, RBP);
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DEFINE(HOST_RAX, RAX);
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DEFINE(HOST_R8, R8);
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DEFINE(HOST_R9, R9);
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DEFINE(HOST_R10, R10);
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DEFINE(HOST_R11, R11);
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DEFINE(HOST_R12, R12);
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DEFINE(HOST_R13, R13);
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DEFINE(HOST_R14, R14);
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DEFINE(HOST_R15, R15);
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DEFINE(HOST_ORIG_RAX, ORIG_RAX);
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DEFINE(HOST_CS, CS);
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DEFINE(HOST_SS, SS);
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DEFINE(HOST_EFLAGS, EFLAGS);
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#if 0
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DEFINE(HOST_FS, FS);
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DEFINE(HOST_GS, GS);
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DEFINE(HOST_DS, DS);
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DEFINE(HOST_ES, ES);
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#endif
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DEFINE(HOST_IP, RIP);
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DEFINE(HOST_SP, RSP);
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DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct));
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}
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