From: Pierre-Marc Fournier <pierre-marc.fournier@polymtl.ca>
Date: Mon, 26 Oct 2009 20:58:56 +0000 (-0400)
Subject: add registers.h
X-Git-Tag: v0.1~78
X-Git-Url: http://git.liburcu.org/?p=ust.git;a=commitdiff_plain;h=d98a01c6665b54395c8cf02d0e66646e26db4db3

add registers.h
---

diff --git a/libust/registers.h b/libust/registers.h
new file mode 100644
index 0000000..df51dc2
--- /dev/null
+++ b/libust/registers.h
@@ -0,0 +1,106 @@
+#ifndef UST_REGISTERS_H
+#define UST_REGISTERS_H
+
+#include <stddef.h>
+
+#ifdef X86_32
+
+struct registers {
+	long eax;
+	long ebx;
+	long ecx;
+	long edx;
+	long ebp;
+	long esp;
+	long esi;
+	long edi;
+	int  xds;
+	int  xes;
+	int  xfs;
+	int  xgs;
+	long eip;
+	int  xcs;
+	long eflags;
+	int  xss;
+};
+
+static inline save_registers(struct registers *regs)
+{
+}
+
+#else
+
+struct registers {
+	unsigned long rax;
+	unsigned long rbx;
+	unsigned long rcx;
+	unsigned long rdx;
+	unsigned long rbp;
+	unsigned long rsp;
+	unsigned long rsi;
+	unsigned long rdi;
+	unsigned long r8;
+	unsigned long r9;
+	unsigned long r10;
+	unsigned long r11;
+	unsigned long r12;
+	unsigned long r13;
+	unsigned long r14;
+	unsigned long r15;
+	unsigned long rip;
+	int cs;
+	int ss;
+};
+
+static inline save_registers(struct registers *regs)
+{
+	asm ("movq %%rax,%c[rax_off](%[regs])\n\t"
+/*	     "movq %%rax,%[rax_el]\n\t"
+	     "movq %%rbx,%[rbx_el]\n\t"
+	     "movq %%rcx,%[rcx_el]\n\t"
+	     "movq %%rdx,%[rdx_el]\n\t"
+	     "movq %%rbp,%[rbp_el]\n\t"
+	     "movq %%rsp,%[rsp_el]\n\t"
+	     "movq %%rsi,%[rsi_el]\n\t"
+	     "movq %%rdi,%[rdi_el]\n\t"
+	     "movq %%r8, %[r8_el]\n\t"
+	     "movq %%r9, %[r9_el]\n\t"
+	     "movq %%r10,%[r10_el]\n\t"
+	     "movq %%r11,%[r11_el]\n\t"
+	     "movq %%r12,%[r12_el]\n\t"
+	     "movq %%r13,%[r13_el]\n\t"
+	     "movq %%r14,%[r14_el]\n\t"
+	     "movq %%r15,%[r15_el]\n\t"
+	     "movw %%cs,%[cs_el]\n\t"
+	     "movw %%ss,%[ss_el]\n\t"
+	     "call getip\n\t"
+	     "getip:\n\t"
+	     "popq %[rip_el]\n\t" */
+	: /* do output regs */
+	: [rax_off] "i" (offsetof(struct registers, rax)),
+	  [regs] "r" (regs)
+/*	: [rax_el] "m" (regs->rax),
+	  [rbx_el] "m" (regs->rbx),
+	  [rcx_el] "m" (regs->rcx),
+	  [rdx_el] "m" (regs->rdx),
+	  [rbp_el] "m" (regs->rbp),
+	  [rsp_el] "m" (regs->rsp),
+	  [rsi_el] "m" (regs->rsi),
+	  [rdi_el] "m" (regs->rdi),
+	  [r8_el] "m" (regs->r8),
+	  [r9_el] "m" (regs->r9),
+	  [r10_el] "m" (regs->r10),
+	  [r11_el] "m" (regs->r11),
+	  [r12_el] "m" (regs->r12),
+	  [r13_el] "m" (regs->r13),
+	  [r14_el] "m" (regs->r14),
+	  [r15_el] "m" (regs->r15),
+	  [cs_el] "m" (regs->cs),
+	  [ss_el] "m" (regs->ss),
+	  [rip_el] "m" (regs->rip)*/
+	);
+}
+
+#endif
+
+#endif /* UST_REGISTERS_H */