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Add x64 version of getcontext.

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Assembly code is derived in part from code in libunwind.
Code tested on desktop linux (Android testing pending emulation
support).

BUG=346626
R=dannyb@google.com, thestig@chromium.org

Review URL: https://breakpad.appspot.com/1454002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1311 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
rmcilroy@chromium.org 2014-04-11 16:09:12 +00:00
parent a2245d6744
commit 6594ac922c
5 changed files with 275 additions and 0 deletions
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22
src/common/android/include/sys/user.h
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@ -143,6 +143,28 @@ struct user_fpregs_struct {
unsigned int fir;
};
#elif defined(__x86_64__)
#include <sys/types.h>
#include_next <sys/user.h>
// This struct is essentially the same as user_i387_struct in sys/user.h
// except that the struct name and individual field names are chosen here
// to match the ones used in breakpad for other x86_64 platforms.
struct user_fpregs_struct {
__u16 cwd;
__u16 swd;
__u16 ftw;
__u16 fop;
__u64 rip;
__u64 rdp;
__u32 mxcsr;
__u32 mxcr_mask;
__u32 st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
__u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */
__u32 padding[24];
};
#else
# error "Unsupported Android CPU ABI"
#endif