Andrea Maria Piana e65760ca85 Add basic peersyncing
This commit adds basic syncing capabilities with peers if they are both
online.

It updates the work done on MVDS, but I decided to create the code in
status-go instead, since it's very tight to the application (similarly
the code that was the inspiration for mvds, bramble, is all tight
together at the database level).

I reused parts of the protobufs.

The flow is:

1) An OFFER message is sent periodically with a bunch of message-ids and
   group-ids.
2) Anyone can REQUEST some of those messages if not present in their
   database.

3) The peer will then send over those messages.

It's disabled by default, but I am planning to add a way to set up the
flags.
2024-01-23 12:46:17 +00:00

32 lines
885 B
C

#if __BYTE_ORDER == __LITTLE_ENDIAN
#define ENDIAN_SUFFIX "le"
#else
#define ENDIAN_SUFFIX ""
#endif
#define LDSO_ARCH "powerpc64" ENDIAN_SUFFIX
#define TPOFF_K (-0x7000)
#define REL_SYMBOLIC R_PPC64_ADDR64
#define REL_USYMBOLIC R_PPC64_UADDR64
#define REL_GOT R_PPC64_GLOB_DAT
#define REL_PLT R_PPC64_JMP_SLOT
#define REL_RELATIVE R_PPC64_RELATIVE
#define REL_COPY R_PPC64_COPY
#define REL_DTPMOD R_PPC64_DTPMOD64
#define REL_DTPOFF R_PPC64_DTPREL64
#define REL_TPOFF R_PPC64_TPREL64
#define CRTJMP(pc,sp) __asm__ __volatile__( \
"mr 1,%1; mr 12,%0; mtctr 12; bctrl" : : "r"(pc), "r"(sp) : "memory" )
#define GETFUNCSYM(fp, sym, got) __asm__ ( \
".hidden " #sym " \n" \
" bl 1f \n" \
" .long " #sym "-. \n" \
"1: mflr %1 \n" \
" lwa %0, 0(%1) \n" \
" add %0, %0, %1 \n" \
: "=r"(*(fp)), "=r"((long){0}) : : "memory", "lr" )