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Add aarch64 getcontext functionality.

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Change-Id: I32912a85c0fd02bb5e45a9eb7deb2410ded352a9
This commit is contained in:
Christopher Ferris 2014-04-15 11:12:03 -07:00 committed by Dave Watson
parent cc247fc0a2
commit 620d1c3b0b
1 changed files with 25 additions and 2 deletions
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27
include/libunwind-aarch64.h
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@ -175,8 +175,31 @@ typedef ucontext_t unw_tdep_context_t;
#include "libunwind-common.h"
#include "libunwind-dynamic.h"
#define unw_tdep_getcontext(uc) (getcontext (uc), 0)
#define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg)
#define unw_tdep_getcontext(uc) (({ \
unw_tdep_context_t *unw_ctx = (uc); \
register uint64_t *unw_base asm ("x0") = (uint64_t*) unw_ctx->uc_mcontext.regs; \
__asm__ __volatile__ ( \
"stp x0, x1, [%[base], #0]\n" \
"stp x2, x3, [%[base], #16]\n" \
"stp x4, x5, [%[base], #32]\n" \
"stp x6, x7, [%[base], #48]\n" \
"stp x8, x9, [%[base], #64]\n" \
"stp x10, x11, [%[base], #80]\n" \
"stp x12, x13, [%[base], #96]\n" \
"stp x14, x13, [%[base], #112]\n" \
"stp x16, x17, [%[base], #128]\n" \
"stp x18, x19, [%[base], #144]\n" \
"stp x20, x21, [%[base], #160]\n" \
"stp x22, x23, [%[base], #176]\n" \
"stp x24, x25, [%[base], #192]\n" \
"stp x26, x27, [%[base], #208]\n" \
"stp x28, x29, [%[base], #224]\n" \
"str x30, [%[base], #240]\n" \
"mov x1, sp\n" \
"stp x1, x30, [%[base], #248]\n" \
: [base] "+r" (unw_base) : : "x1", "memory"); \
}), 0)
#define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg)
extern int unw_tdep_is_fpreg (int);