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x86: use generic register names in struct sigcontext

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Switch struct sigcontext (defined in <asm/sigcontext*.h>) to using
register names withut e- or r-prefixes for both 32- and 64-bit x86.
This is intended as a preliminary step in unifying this code between
architectures.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
H. Peter Anvin
2008-01-30 13:30:56 +01:00
committed by Ingo Molnar
parent 153d5f2e57
commit 742fa54a62
8 changed files with 121 additions and 122 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
arch/x86/kernel/asm-offsets_32.c
View File

@@ -38,15 +38,15 @@ void foo(void);
void foo(void)
{
OFFSET(IA32_SIGCONTEXT_eax, sigcontext, eax);
OFFSET(IA32_SIGCONTEXT_ebx, sigcontext, ebx);
OFFSET(IA32_SIGCONTEXT_ecx, sigcontext, ecx);
OFFSET(IA32_SIGCONTEXT_edx, sigcontext, edx);
OFFSET(IA32_SIGCONTEXT_esi, sigcontext, esi);
OFFSET(IA32_SIGCONTEXT_edi, sigcontext, edi);
OFFSET(IA32_SIGCONTEXT_ebp, sigcontext, ebp);
OFFSET(IA32_SIGCONTEXT_esp, sigcontext, esp);
OFFSET(IA32_SIGCONTEXT_eip, sigcontext, eip);
OFFSET(IA32_SIGCONTEXT_ax, sigcontext, ax);
OFFSET(IA32_SIGCONTEXT_bx, sigcontext, bx);
OFFSET(IA32_SIGCONTEXT_cx, sigcontext, cx);
OFFSET(IA32_SIGCONTEXT_dx, sigcontext, dx);
OFFSET(IA32_SIGCONTEXT_si, sigcontext, si);
OFFSET(IA32_SIGCONTEXT_di, sigcontext, di);
OFFSET(IA32_SIGCONTEXT_bp, sigcontext, bp);
OFFSET(IA32_SIGCONTEXT_sp, sigcontext, sp);
OFFSET(IA32_SIGCONTEXT_ip, sigcontext, ip);
BLANK();
OFFSET(CPUINFO_x86, cpuinfo_x86, x86);

18
arch/x86/kernel/asm-offsets_64.c
View File

@@ -63,15 +63,15 @@ int main(void)
#undef ENTRY
#ifdef CONFIG_IA32_EMULATION
#define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
ENTRY(eax);
ENTRY(ebx);
ENTRY(ecx);
ENTRY(edx);
ENTRY(esi);
ENTRY(edi);
ENTRY(ebp);
ENTRY(esp);
ENTRY(eip);
ENTRY(ax);
ENTRY(bx);
ENTRY(cx);
ENTRY(dx);
ENTRY(si);
ENTRY(di);
ENTRY(bp);
ENTRY(sp);
ENTRY(ip);
BLANK();
#undef ENTRY
DEFINE(IA32_RT_SIGFRAME_sigcontext,

28
arch/x86/kernel/signal_32.c
View File

@@ -105,7 +105,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
#define COPY(x) err |= __get_user(regs->x, &sc->e ## x)
#define COPY(x) err |= __get_user(regs->x, &sc->x)
#define COPY_SEG(seg) \
{ unsigned short tmp; \
@@ -144,7 +144,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
{
unsigned int tmpflags;
err |= __get_user(tmpflags, &sc->eflags);
err |= __get_user(tmpflags, &sc->flags);
regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
regs->orig_ax = -1; /* disable syscall checks */
}
@@ -165,7 +165,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
}
}
err |= __get_user(*peax, &sc->eax);
err |= __get_user(*peax, &sc->ax);
return err;
badframe:
@@ -256,20 +256,20 @@ setup_sigcontext(struct sigcontext __user *sc, struct _fpstate __user *fpstate,
err |= __put_user(regs->es, (unsigned int __user *)&sc->es);
err |= __put_user(regs->ds, (unsigned int __user *)&sc->ds);
err |= __put_user(regs->di, &sc->edi);
err |= __put_user(regs->si, &sc->esi);
err |= __put_user(regs->bp, &sc->ebp);
err |= __put_user(regs->sp, &sc->esp);
err |= __put_user(regs->bx, &sc->ebx);
err |= __put_user(regs->dx, &sc->edx);
err |= __put_user(regs->cx, &sc->ecx);
err |= __put_user(regs->ax, &sc->eax);
err |= __put_user(regs->di, &sc->di);
err |= __put_user(regs->si, &sc->si);
err |= __put_user(regs->bp, &sc->bp);
err |= __put_user(regs->sp, &sc->sp);
err |= __put_user(regs->bx, &sc->bx);
err |= __put_user(regs->dx, &sc->dx);
err |= __put_user(regs->cx, &sc->cx);
err |= __put_user(regs->ax, &sc->ax);
err |= __put_user(current->thread.trap_no, &sc->trapno);
err |= __put_user(current->thread.error_code, &sc->err);
err |= __put_user(regs->ip, &sc->eip);
err |= __put_user(regs->ip, &sc->ip);
err |= __put_user(regs->cs, (unsigned int __user *)&sc->cs);
err |= __put_user(regs->flags, &sc->eflags);
err |= __put_user(regs->sp, &sc->esp_at_signal);
err |= __put_user(regs->flags, &sc->flags);
err |= __put_user(regs->sp, &sc->sp_at_signal);
err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);
tmp = save_i387(fpstate);

29
arch/x86/kernel/signal_64.c
View File

@@ -62,11 +62,10 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
#define COPYR(x) err |= __get_user(regs->x, &sc->r ## x)
#define COPY(x) err |= __get_user(regs->x, &sc->x)
COPYR(di); COPYR(si); COPYR(bp); COPYR(sp); COPYR(bx);
COPYR(dx); COPYR(cx); COPYR(ip);
COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
COPY(dx); COPY(cx); COPY(ip);
COPY(r8);
COPY(r9);
COPY(r10);
@@ -87,7 +86,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
{
unsigned int tmpflags;
err |= __get_user(tmpflags, &sc->eflags);
err |= __get_user(tmpflags, &sc->flags);
regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
regs->orig_ax = -1; /* disable syscall checks */
}
@@ -109,7 +108,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
}
}
err |= __get_user(*prax, &sc->rax);
err |= __get_user(*prax, &sc->ax);
return err;
badframe:
@@ -166,14 +165,14 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
err |= __put_user(0, &sc->gs);
err |= __put_user(0, &sc->fs);
err |= __put_user(regs->di, &sc->rdi);
err |= __put_user(regs->si, &sc->rsi);
err |= __put_user(regs->bp, &sc->rbp);
err |= __put_user(regs->sp, &sc->rsp);
err |= __put_user(regs->bx, &sc->rbx);
err |= __put_user(regs->dx, &sc->rdx);
err |= __put_user(regs->cx, &sc->rcx);
err |= __put_user(regs->ax, &sc->rax);
err |= __put_user(regs->di, &sc->di);
err |= __put_user(regs->si, &sc->si);
err |= __put_user(regs->bp, &sc->bp);
err |= __put_user(regs->sp, &sc->sp);
err |= __put_user(regs->bx, &sc->bx);
err |= __put_user(regs->dx, &sc->dx);
err |= __put_user(regs->cx, &sc->cx);
err |= __put_user(regs->ax, &sc->ax);
err |= __put_user(regs->r8, &sc->r8);
err |= __put_user(regs->r9, &sc->r9);
err |= __put_user(regs->r10, &sc->r10);
@@ -184,8 +183,8 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
err |= __put_user(regs->r15, &sc->r15);
err |= __put_user(me->thread.trap_no, &sc->trapno);
err |= __put_user(me->thread.error_code, &sc->err);
err |= __put_user(regs->ip, &sc->rip);
err |= __put_user(regs->flags, &sc->eflags);
err |= __put_user(regs->ip, &sc->ip);
err |= __put_user(regs->flags, &sc->flags);
err |= __put_user(mask, &sc->oldmask);
err |= __put_user(me->thread.cr2, &sc->cr2);