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powerpc/dtrace: Fix fbt function probing for ELFv2

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'.' function names exist only in ELFv1.  ELFv2 does away with function
descriptors, and look more like they do on powerpc(32) and most other
platforms, as direct function pointers.  Stop blacklisting regular function
names in ELFv2.

Submitted by:	Brandon Bergren
Differential Revision:	https://reviews.freebsd.org/D20346
This commit is contained in:
Justin Hibbits 2019-05-27 03:18:56 +00:00
parent af8f74ad14
commit b2aea1ad8f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=348298
1 changed files with 2 additions and 0 deletions
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sys/cddl/dev/fbt/powerpc/fbt_isa.c
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@ -116,6 +116,7 @@ fbt_provide_module_function(linker_file_t lf, int symindx,
uint32_t *instr, *limit;
#ifdef __powerpc64__
#if !defined(_CALL_ELF) || _CALL_ELF == 1
/*
* PowerPC64 uses '.' prefixes on symbol names, ignore it, but only
* allow symbols with the '.' prefix, so that we don't get the function
@ -125,6 +126,7 @@ fbt_provide_module_function(linker_file_t lf, int symindx,
name++;
else
return (0);
#endif
#endif
if (fbt_excluded(name))