From 1ead86a8bcbfe4045729466e4b98f765f3c13c8d Mon Sep 17 00:00:00 2001 From: Jiffin Tony Thottan Date: Tue, 11 Aug 2015 16:00:47 +0530 Subject: libgfapi: adding 'follow' flag to glfs_h_lookupat() Previously glfs_h_lookupat won't follow the symlink, this patch introduces new flag `follow` which will resolve the same. Applications linking against the new library will need to use the new glfs_h_lookupat API call. In order to stay compatible with existing binaries that use the previous glfs_h_lookupat() function, the old symbol needs to stay available. Verification that there are two versions of glfs_h_lookupat: $ objdump -T /usr/lib64/libgfapi.so.0 | grep -w glfs_h_lookupat 0000000000015070 g DF .text 000000000000021e GFAPI_3.7.4 glfs_h_lookupat 0000000000015290 g DF .text 0000000000000008 (GFAPI_3.4.2) glfs_h_lookupat Testing with a binary (based on anonymous_fd_read_write.c from ./tests/) that was linked against the old library: $ objdump -T ./lookupat | grep -w glfs_h_lookupat 0000000000000000 DF *UND* 0000000000000000 GFAPI_3.4.2 glfs_h_lookupat Enable debugging for 'ld.so' so that we can check that the GFAPI_3.4.2 version of the symbol gets loaded: $ export LD_DEBUG_OUTPUT=lookupat.ld.log LD_DEBUG=all $ ./lookupat $ grep -w glfs_h_lookupat lookupat.ld.log.2543 2543: symbol=glfs_h_lookupat; lookup in file=./lookupat [0] 2543: symbol=glfs_h_lookupat; lookup in file=/lib64/libgfapi.so.0 [0] 2543: binding file ./lookupat [0] to /lib64/libgfapi.so.0 [0]: normal symbol `glfs_h_lookupat' [GFAPI_3.4.2] Change-Id: I8bf9b1c19a0585f681bc1a7f84aad1ccd0f75f6a BUG: 1252410 Signed-off-by: Jiffin Tony Thottan Signed-off-by: Niels de Vos Reviewed-on: http://review.gluster.org/11883 Reviewed-by: soumya k Reviewed-by: Kaleb KEITHLEY Tested-by: NetBSD Build System --- api/src/gfapi.aliases | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'api/src/gfapi.aliases') diff --git a/api/src/gfapi.aliases b/api/src/gfapi.aliases index 9776c87fdcb..40b6ed21192 100644 --- a/api/src/gfapi.aliases +++ b/api/src/gfapi.aliases @@ -89,7 +89,7 @@ _pub_glfs_dup _glfs_dup$GFAPI_3.4.0 _pub_glfs_setfsuid _glfs_setfsuid$GFAPI_3.4.2 _pub_glfs_setfsgid _glfs_setfsgid$GFAPI_3.4.2 _pub_glfs_setfsgroups _glfs_setfsgroups$GFAPI_3.4.2 -_pub_glfs_h_lookupat _glfs_h_lookupat$GFAPI_3.4.2 +_pub_glfs_h_lookupat34 _glfs_h_lookupat$GFAPI_3.4.2 _pub_glfs_h_creat _glfs_h_creat$GFAPI_3.4.2 _pub_glfs_h_mkdir _glfs_h_mkdir$GFAPI_3.4.2 _pub_glfs_h_mknod _glfs_h_mknod$GFAPI_3.4.2 @@ -138,3 +138,5 @@ _priv_glfs_free_from_ctx _glfs_free_from_ctx$GFAPI_PRIVATE_3.7.0 _priv_glfs_new_from_ctx _glfs_new_from_ctx$GFAPI_PRIVATE_3.7.0 _priv_glfs_resolve _glfs_resolve$GFAPI_PRIVATE_3.7.0 _priv_glfs_process_upcall_event _glfs_process_upcall_event$GFAPI_PRIVATE_3.7.0 + +_pub_glfs_h_lookupat _glfs_h_lookupat$GFAPI_3.7.4 -- cgit