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Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,104 @@ | ||
| v1.16 changes: | ||
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| BTF encoder: | ||
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| Andrii Nakryiko <[email protected]>: | ||
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| - Preserve and encode exported functions as BTF_KIND_FUNC. | ||
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| Add encoding of DWARF's DW_TAG_subprogram_type into BTF's BTF_KIND_FUNC | ||
| (plus corresponding BTF_KIND_FUNC_PROTO). Only exported functions are converted | ||
| for now. This allows to capture all the exported kernel functions, same subset | ||
| that's exposed through /proc/kallsyms. | ||
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| BTF loader: | ||
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| Arnaldo Carvalho de Melo <[email protected]> | ||
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| - Add support for BTF_KIND_FUNC | ||
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| Some changes to the fprintf routines were needed, as BTF has as the | ||
| function type just a BTF_KIND_FUNC_PROTO, while DWARF has as the type for a | ||
| function its return value type. With a function->btf flag this was overcome and | ||
| all the other goodies in pfunct are present. | ||
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| Pretty printer: | ||
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| Arnaldo Carvalho de Melo: | ||
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| - Account inline type __aligned__ member types for spacing: | ||
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| union { | ||
| refcount_t rcu_users; /* 2568 4 */ | ||
| struct callback_head rcu __attribute__((__aligned__(8))); /* 2568 16 */ | ||
| - } __attribute__((__aligned__(8))); /* 2568 16 */ | ||
| + } __attribute__((__aligned__(8))); /* 2568 16 */ | ||
| struct pipe_inode_info * splice_pipe; /* 2584 8 */ | ||
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| - Fix alignment of class members that are structs/enums/unions | ||
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| E.g. look at that 'completion' member in this struct: | ||
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| struct cpu_stop_done { | ||
| atomic_t nr_todo; /* 0 4 */ | ||
| int ret; /* 4 4 */ | ||
| - struct completion completion; /* 8 32 */ | ||
| + struct completion completion; /* 8 32 */ | ||
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| /* size: 40, cachelines: 1, members: 3 */ | ||
| /* last cacheline: 40 bytes */ | ||
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| - Fixup handling classes with no members, solving a NULL deref. | ||
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| Gareth Lloyd <[email protected]>: | ||
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| - Avoid infinite loop trying to determine type with static data member of its own type. | ||
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| RPM spec file. | ||
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| Jiri Olsa <[email protected]> | ||
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| Add dwarves dependency on libdwarves1. | ||
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| pfunct: | ||
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| Arnaldo Carvalho de Melo <[email protected]> | ||
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| - type->type == 0 is void, fix --compile for that | ||
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| We were using the fall back for that, i.e. 'return 0;' was being emitted | ||
| for a function returning void, noticed with using BTF as the format. | ||
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| pdwtags: | ||
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| - Print DW_TAG_subroutine_type as well | ||
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| So that we can see at least via pdwtags those tags, be it from DWARF of BTF. | ||
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| core: | ||
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| Arnaldo Carvalho de Melo <[email protected]> | ||
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| Fix ptr_table__add_with_id() handling of pt->nr_entries, covering how | ||
| BTF variables IDs are encoded. | ||
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| pglobal: | ||
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| Arnaldo Carvalho de Melo <[email protected]>: | ||
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| - Allow passing the format path specifier, to use with BTF | ||
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| I.e. now we can, just like with pahole, use: | ||
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| pglobal -F btf --variable foo.o | ||
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| To get the global variables. | ||
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| Tree wide: | ||
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| Arnaldo Carvalho de Melo <[email protected]>: | ||
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| - Fixup issues pointed out by various coverity reports. | ||
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| Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -2,8 +2,8 @@ | |
| %define libver 1 | ||
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| Name: dwarves | ||
| Version: 1.15 | ||
| Release: 2%{?dist} | ||
| Version: 1.16 | ||
| Release: 1%{?dist} | ||
| License: GPLv2 | ||
| Summary: Debugging Information Manipulation Tools (pahole & friends) | ||
| URL: http://acmel.wordpress.com | ||
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@@ -35,6 +35,15 @@ code generate on the resulting binaries. | |
| Another tool is pfunct, that can be used to find all sorts of information about | ||
| functions, inlines, decisions made by the compiler about inlining, etc. | ||
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| One example of pfunct usage is in the fullcircle tool, a shell that drivers | ||
| pfunct to generate compileable code out of a .o file and then build it using | ||
| gcc, with the same compiler flags, and then use codiff to make sure the | ||
| original .o file and the new one generated from debug info produces the same | ||
| debug info. | ||
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| The btfdiff utility compares the output of pahole from BTF and DWARF to make | ||
| sure they produce the same results. | ||
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| %package -n %{libname}%{libver} | ||
| Summary: Debugging information processing library | ||
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@@ -118,6 +127,20 @@ make install DESTDIR=%{buildroot} | |
| %{_libdir}/%{libname}_reorganize.so | ||
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| %changelog | ||
| * Mon 16 Dec 2019 Arnaldo Carvalho de Melo <[email protected]> - 1.16-1 | ||
| - New release: 1.16 | ||
| - BTF encoder: Preserve and encode exported functions as BTF_KIND_FUNC. | ||
| - BTF loader: Add support for BTF_KIND_FUNC | ||
| - Pretty printer: Account inline type __aligned__ member types for spacing | ||
| - Pretty printer: Fix alignment of class members that are structs/enums/unions | ||
| - Pretty printer: Avoid infinite loop trying to determine type with static data member of its own type. | ||
| - RPM spec file: Add dwarves dependency on libdwarves1. | ||
| - pfunct: type->type == 0 is void, fix --compile for that | ||
| - pdwtags: Print DW_TAG_subroutine_type as well | ||
| - core: Fix ptr_table__add_with_id() handling of pt->nr_entries | ||
| - pglobal: Allow passing the format path specifier, to use with BTF | ||
| - Tree wide: Fixup issues pointed out by various coverity reports. | ||
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| * Tue Nov 05 2019 Jiri Olsa <[email protected]> - 1.15-2 | ||
| - Add libdwarves version dependency to dwarves package | ||
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