MDEV-7477: Make innochecksum work on compressed tables

This patch ports the work that facebook has performed
to make innochecksum handle compressed tables.
the basic idea is to use actual innodb-code to perform
checksum verification rather than duplicating in innochecksum.cc.
to make this work, innodb code has been annotated with
lots of #ifndef UNIV_INNOCHECKSUM so that it can be
compiled outside of storage/innobase.

A new testcase is also added that verifies that innochecksum
works on compressed/non-compressed tables.

Merged from commit fabc79d2ea976c4ff5b79bfe913e6bc03ef69d42 
from https://code.google.com/p/google-mysql/

The actual steps to produce this patch are:

    take innochecksum from 5.6.14
    apply changes in innodb from facebook patches needed to make innochecksum compile
    apply changes in innochecksum from facebook patches
    add handcrafted testcase

The referenced facebook patches used are:

    https://github.com/facebook/mysql-5.6/commit/91e25120e75272db4cdbc07d0e45877d9dea5715
    https://github.com/facebook/mysql-5.6/commit/847fe76ea5239b09fa361b023c56e6be76d32046
    https://github.com/facebook/mysql-5.6/commit/1135628a5a9b3412621b93233478f3804bcef51a
    https://github.com/facebook/mysql-5.6/commit/4dbf7c240ce2f08b7d6572d9452c9779ce90641c

1 files changed, 18 insertions, 1 deletions

diff --git a/storage/innobase/include/page0page.ic b/storage/innobase/include/page0page.ic
index 9b81156708f..99e17001c0a 100644
--- a/storage/innobase/include/page0page.ic
+++ b/storage/innobase/include/page0page.ic
@@ -23,6 +23,8 @@ Index page routines
 Created 2/2/1994 Heikki Tuuri
 *******************************************************/
 
+#ifndef UNIV_INNOCHECKSUM
+
 #include "mach0data.h"
 #ifdef UNIV_DEBUG
 # include "log0recv.h"
@@ -38,6 +40,7 @@ Created 2/2/1994 Heikki Tuuri
 #define UNIV_INLINE
 #endif
 
+#endif /* !UNIV_INNOCHECKSUM */
 /************************************************************//**
 Gets the start of a page.
 @return	start of the page */
@@ -49,6 +52,7 @@ page_align(
 {
 	return((page_t*) ut_align_down(ptr, UNIV_PAGE_SIZE));
 }
+#ifndef UNIV_INNOCHECKSUM
 /************************************************************//**
 Gets the offset within a page.
 @return	offset from the start of the page */
@@ -103,6 +107,7 @@ page_update_max_trx_id(
 	}
 }
 
+#endif /* !UNIV_INNOCHECKSUM */
 /*************************************************************//**
 Reads the given header field. */
 UNIV_INLINE
@@ -118,6 +123,7 @@ page_header_get_field(
 	return(mach_read_from_2(page + PAGE_HEADER + field));
 }
 
+#ifndef UNIV_INNOCHECKSUM
 /*************************************************************//**
 Sets the given header field. */
 UNIV_INLINE
@@ -223,6 +229,7 @@ page_header_reset_last_insert(
 }
 #endif /* !UNIV_HOTBACKUP */
 
+#endif /* !UNIV_INNOCHECKSUM */
 /************************************************************//**
 Determine whether the page is in new-style compact format.
 @return nonzero if the page is in compact format, zero if it is in
@@ -236,6 +243,7 @@ page_is_comp(
 	return(page_header_get_field(page, PAGE_N_HEAP) & 0x8000);
 }
 
+#ifndef UNIV_INNOCHECKSUM
 /************************************************************//**
 TRUE if the record is on a page in compact format.
 @return	nonzero if in compact format */
@@ -264,6 +272,7 @@ page_rec_get_heap_no(
 	}
 }
 
+#endif /* !UNIV_INNOCHECKSUM */
 /************************************************************//**
 Determine whether the page is a B-tree leaf.
 @return	true if the page is a B-tree leaf (PAGE_LEVEL = 0) */
@@ -276,6 +285,7 @@ page_is_leaf(
 	return(!*(const uint16*) (page + (PAGE_HEADER + PAGE_LEVEL)));
 }
 
+#ifndef UNIV_INNOCHECKSUM
 /************************************************************//**
 Determine whether the page is empty.
 @return	true if the page is empty (PAGE_N_RECS = 0) */
@@ -529,6 +539,7 @@ page_cmp_dtuple_rec_with_match(
 }
 #endif /* !UNIV_HOTBACKUP */
 
+#endif /* !UNIV_INNOCHECKSUM */
 /*************************************************************//**
 Gets the page number.
 @return	page number */
@@ -542,6 +553,7 @@ page_get_page_no(
 	return(mach_read_from_4(page + FIL_PAGE_OFFSET));
 }
 
+#ifndef UNIV_INNOCHECKSUM
 /*************************************************************//**
 Gets the tablespace identifier.
 @return	space id */
@@ -555,6 +567,7 @@ page_get_space_id(
 	return(mach_read_from_4(page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID));
 }
 
+#endif /* !UNIV_INNOCHECKSUM */
 /*************************************************************//**
 Gets the number of user records on page (infimum and supremum records
 are not user records).
@@ -568,6 +581,7 @@ page_get_n_recs(
 	return(page_header_get_field(page, PAGE_N_RECS));
 }
 
+#ifndef UNIV_INNOCHECKSUM
 /*************************************************************//**
 Gets the number of dir slots in directory.
 @return	number of slots */
@@ -958,6 +972,7 @@ page_rec_get_base_extra_size(
 	return(REC_N_NEW_EXTRA_BYTES + (ulint) !page_rec_is_comp(rec));
 }
 
+#endif /* !UNIV_INNOCHECKSUM */
 /************************************************************//**
 Returns the sum of the sizes of the records in the record list, excluding
 the infimum and supremum records.
@@ -981,7 +996,7 @@ page_get_data_size(
 	return(ret);
 }
 
-
+#ifndef UNIV_INNOCHECKSUM
 /************************************************************//**
 Allocates a block of memory from the free list of an index page. */
 UNIV_INLINE
@@ -1170,6 +1185,8 @@ page_mem_free(
 	}
 }
 
+#endif /* !UNIV_INNOCHECKSUM */
+
 #ifdef UNIV_MATERIALIZE
 #undef UNIV_INLINE
 #define UNIV_INLINE	UNIV_INLINE_ORIGINAL