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>
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
#include <stdio.h>
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#include <signal.h>
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#include <asm/ptrace.h>
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#include <asm/user.h>
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#include <linux/stddef.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_IP, sigcontext, eip);
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OFFSET(SC_SP, sigcontext, esp);
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OFFSET(SC_FS, sigcontext, fs);
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OFFSET(SC_GS, sigcontext, gs);
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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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OFFSET(SC_CS, sigcontext, cs);
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OFFSET(SC_EFLAGS, sigcontext, eflags);
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OFFSET(SC_EAX, sigcontext, eax);
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OFFSET(SC_EBX, sigcontext, ebx);
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OFFSET(SC_ECX, sigcontext, ecx);
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OFFSET(SC_EDX, sigcontext, edx);
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OFFSET(SC_EDI, sigcontext, edi);
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OFFSET(SC_ESI, sigcontext, esi);
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OFFSET(SC_EBP, sigcontext, ebp);
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OFFSET(SC_TRAPNO, sigcontext, trapno);
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OFFSET(SC_ERR, sigcontext, err);
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OFFSET(SC_CR2, sigcontext, cr2);
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OFFSET(SC_FPSTATE, sigcontext, fpstate);
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OFFSET(SC_SIGMASK, sigcontext, oldmask);
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OFFSET(SC_FP_CW, _fpstate, cw);
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OFFSET(SC_FP_SW, _fpstate, sw);
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OFFSET(SC_FP_TAG, _fpstate, tag);
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OFFSET(SC_FP_IPOFF, _fpstate, ipoff);
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OFFSET(SC_FP_CSSEL, _fpstate, cssel);
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OFFSET(SC_FP_DATAOFF, _fpstate, dataoff);
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OFFSET(SC_FP_DATASEL, _fpstate, datasel);
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OFFSET(SC_FP_ST, _fpstate, _st);
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OFFSET(SC_FXSR_ENV, _fpstate, _fxsr_env);
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DEFINE(HOST_FRAME_SIZE, FRAME_SIZE);
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DEFINE(HOST_FP_SIZE,
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sizeof(struct user_i387_struct) / sizeof(unsigned long));
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DEFINE(HOST_XFP_SIZE,
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sizeof(struct user_fxsr_struct) / sizeof(unsigned long));
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DEFINE(HOST_IP, EIP);
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DEFINE(HOST_SP, UESP);
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DEFINE(HOST_EFLAGS, EFL);
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DEFINE(HOST_EAX, EAX);
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DEFINE(HOST_EBX, EBX);
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DEFINE(HOST_ECX, ECX);
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DEFINE(HOST_EDX, EDX);
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DEFINE(HOST_ESI, ESI);
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DEFINE(HOST_EDI, EDI);
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DEFINE(HOST_EBP, EBP);
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DEFINE(HOST_CS, CS);
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DEFINE(HOST_SS, SS);
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DEFINE(HOST_DS, DS);
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DEFINE(HOST_FS, FS);
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DEFINE(HOST_ES, ES);
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DEFINE(HOST_GS, GS);
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DEFINE(__UM_FRAME_SIZE, sizeof(struct user_regs_struct));
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}
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