From: Pierre-Marc Fournier Date: Tue, 27 Oct 2009 21:22:04 +0000 (-0400) Subject: registers.h: update X-Git-Tag: v1.9.1~852 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=9e8f4f526474dbfb0ce0c849ab5d2d5fce76aaf7;p=lttng-ust.git registers.h: update --- diff --git a/libust/registers.h b/libust/registers.h index 99ca3f7c..ab12c4e1 100644 --- a/libust/registers.h +++ b/libust/registers.h @@ -28,6 +28,10 @@ static inline save_registers(struct registers *regs) { } +#define RELATIVE_ADDRESS(__rel_label__) __rel_label__ + +#define _ASM_PTR ".long " + #else struct registers { @@ -47,7 +51,6 @@ struct registers { unsigned long r13; unsigned long r14; unsigned long r15; - unsigned long rip; int cs; int ss; }; @@ -71,10 +74,7 @@ struct registers { "movq %%r15,%c[r15_off](%[regs])\n\t" \ "movw %%cs,%c[cs_off](%[regs])\n\t" \ "movw %%ss,%c[ss_off](%[regs])\n\t" \ - "call getip\n\t" \ - "getip:\n\t" \ - "popq %c[rip_off](%[regs])\n\t" \ - : /* do output regs */ \ + : \ : [regs] "r" (regsptr), \ [rax_off] "i" (offsetof(struct registers, rax)), \ [rbx_off] "i" (offsetof(struct registers, rbx)), \ @@ -93,10 +93,15 @@ struct registers { [r14_off] "i" (offsetof(struct registers, r14)), \ [r15_off] "i" (offsetof(struct registers, r15)), \ [cs_off] "i" (offsetof(struct registers, cs)), \ - [ss_off] "i" (offsetof(struct registers, ss)), \ - [rip_off] "i" (offsetof(struct registers, rip)) \ + [ss_off] "i" (offsetof(struct registers, ss)) \ ); +/* Macro to insert the address of a relative jump in an assembly stub, + * in a relocatable way. On x86-64, this uses a special (%rip) notation. */ +#define RELATIVE_ADDRESS(__rel_label__) __rel_label__(%%rip) + +#define _ASM_PTR ".quad " + #endif #endif /* UST_REGISTERS_H */