| Commit message (Collapse) | Author | Age | Files | Lines |
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The kernel has min/max/clamp macros to make range comparisons easier.
Clamp is a newer invention, but we can define it for older kernels in
terms of min and max.
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Previously, our octal escapes used variable lengths, which can lead to
ambiguities. Also, 8-bit characters would only output the least digit.
* runtime/string.c (_stp_text_str): Always output 3-digit octal escapes,
and handle 8-bit chars more gracefully.
* testsuite/systemtap.string/text_str.stp: Include an 8-bit character.
* testsuite/systemtap.string/text_str.exp: Above + expect 3-digit octal.
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2009-02-18 David Smith <dsmith@redhat.com>
* io.c (_stp_log): Removed unused function.
* map.c (_stp_cmp): Replace _stp_log() with dbug().
* mempool.c (_stp_mempool_resize): Removed unused function.
* print.c (next_fmt): Removed unused function.
* procfs.c: Removed unused variable '_stp_num_procfs_files'.
* regs.c (_stp_ret_addr): Removed unused function.
* string.c (_stp_text_str): Removed unused variable 'len'.
* string.h: Removed unused variable '_stdout_' and function
declaration for deleted function '_stp_vsprintf'.
* sym.c: Removed unused variables.
* unwind.c (_stp_create_unwind_hdr): Removed unused function.
2009-02-18 David Smith <dsmith@redhat.com>
* control.c: Removed unused variable '_stp_current_buffers'.
* procfs.c (_stp_set_buffers): Removed unused function.
(_stp_register_ctl_channel_fs): Removed unused variables and
label.
* symbols.c (u32_swap): Removed unused function.
(generic_swap): Ditto.
(_stp_sort): Ditto.
(_stp_section_is_interesting): Ditto.
* transport.c (_stp_transport_init): Removed unused variable
'ret'.
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This change just inserts 'static' on runtime, tapset, and generated C
functions and globals, so the compiler can do a better job of
optimizing.
My tests with small scripts show ~10% reduction in compile time and ~20%
reduction in module size. Larger scripts may show less benefit, but I
expect purely positive results.
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* string.c (_stp_text_str): Fix handling of embedded
" and \ characters.
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PR 4075 fix from Ananth Mavinakayanahalli
* string.h (_stp_get_user): Define.
* string.c (_stp_text_str): Use _stp_get_user().
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* stack.c, string.c, sym.c, transport/symbols.c:
Fix some signed vs unsigned comparison warnings.
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* string.c (_stp_string_init): Deleted.
(_stp_sprintf): Deleted.
(_stp_vsprintf): Deleted.
(_stp_string_cat_cstr): Deleted.
(_stp_string_cat_string): Deleted.
(_stp_string_cat_char): Deleted.
(_stp_string_ptr): Deleted.
(_stp_string_cat): Deleted.
(_stp_snprintf): Moved from vsprintf.c.
(_stp_vscnprintf): Moved from vsprintf.c.
* string.h (STP_STRING_SIZE): Deleted.
(STP_NUM_STRINGS): Deleted.
Remove all references to type "String".
* vsprintf.c (_stp_vscnprintf): Moved to string.c.
(_stp_snprintf): Moved to string.c
* sym.c (_stp_symbol_sprint): Replaced with
_stp_symbol_print, which writes to the print buffer.
(_stp_symbol_sprint_basic): Replaced with
_stp_symbol_snprint.
* runtime.h: Include io.c.
* stat-common.c: Use new _stp_print* functions.
* stat.c: Ditto.
* regs.c: Renamed to regs-ia64.c.
* current.c: Renamed regs.c.
* regs-ia64.c: New file (renamed from regs.c).
* stack.c (_stp_stack_sprint): Renamed _stp_stack_print
and now just prints to the print buffer. Calls
__stp_stack_print instead of __stp_stack_sprint.
(_stp_stack_snprint): New function. Calls _stp_stack_print and
then copies the print buffer into a string.
(_stp_stack_printj): Deleted.
(_stp_ustack_sprint): Deleted.
* stack-*.c: Rewritten to print instead of writing to strings.
Uses new _stp_print* functions.
* print.c (_stp_printf): Create new function instead of macro.
(_stp_print): Ditto.
(_stp_print_char): New function.
* map.c: Use _stp_print() and _stp_print_char()
instead of _stp_print_cstr().
* io.c (_stp_vlog): Use _stp_print() instead
of _stp_string_cat_cstr().
* copy.c (_stp_string_from_user): Deleted.
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* io.c (_stp_vlog): Use dynamic percpu allocations
instead of very wasteful static allocations.
* print.c (_stp_print_init): Do percpu allocations
for io.c.
(_stp_print_cleanup): Free percpu allocations.
* string.c (_stp_sprintf): Overflow check needed
to be >= instead of >.
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* print.c: Replace STP_PRINT_BUF_LEN with STP_BUFFER_SIZE.
* string.c: Ditto.
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PR 3232
* print.c (_stp_print_init): New. Alloc per-cpu buffers.
(_stp_print_cleanup): New. Free per-cpu buffers.
(_stp_print_flush): Use per_cpu_ptr().
* string.c (_stp_sprintf): Ditto.
(_stp_vsprintf): Ditto.
(_stp_string_cat_cstr): Ditto.
(_stp_string_cat_char): Ditto.
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* print.c (_stp_print_flush): Rewrite so one version works for
relayfs or procfs. Use proper per-cpu functions.
(_stp_reserve_bytes): New function. Reserve bytes in the output buffer.
(_stp_print_binary): New function. Write a variable number of
64-bit values directly into the output buffer.
* string.c (_stp_sprintf): Rewrite using new per-cpu buffers.
(_stp_vsprintf): Ditto.
(_stp_string_cat_cstr): Ditto.
(_stp_string_cat_char): Ditto.
* runtime.h: Set defaults for MAXTRYLOCK and TRYLOCKDELAY to make
runtime tests in bench2 happy.
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* string.c:
* print.c: Remove includes for <linux/config.h>.
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* string.c (_stp_text_str): Use __get_user().
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* string.c (_stp_text_str): Add a parameter to support
userspace strings too.
* string.h: (_stp_text_str): Fix proto.
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* string.c (_stp_text_str): New function.
* string.h (_stp_text_str): Declare.
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* string.c (_stp_string_cat_cstr): No need to copy
terminating 0.
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* print.c (_stp_print_flush): Send 'len" bytes
instead of 'len+1', which included terminating 0.
* string.c (_stp_sprintf): Call _stp_vsnprintf()
instead of vsnprintf().
(_stp_vsprintf): Ditto.
* vsprintf.c: New file.
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* string.c (_stp_string_cat_cstr): Use memcpy() instead of strncpy().
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* ALL: Cleanup copyrights.
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* string.c (_stp_string_init): CAll stp_error() on bad
init.
* list.c (_stp_list_clear): Call _stp_warn().
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* counter.c: New file. Counter aggregations.
* stat.c: New file. Stat aggregations.
* stat.h: Header file for stats.
* map-int.c: New file. Support for int64 values.
* map-stat.c: New file. Support for stat values.
* map-str.c: New file. Support for string values.
* map-values.c: Now just includes the necessary map-*.c files.
* stat-common.c: New file. Stats stuff common to Stats and maps
containing stats.
* Doxyfile: Bumped version to 0.6.
* README: Renamed README.doc and reorganized.
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* string.c (_stp_string_cat_cstr): Be sure result is
always terminated.
* print.c (_stp_vprintf): Fix typo.
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* map.c (_stp_map_print): Now takes a format string instead of a name.
* map.h (foreach): Update macro.
* string.c (_stp_string_cat_char): New function. Append a char
to a string.
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* current.c (_stp_sprint_regs): Implement for i386.
* sym.c (_stp_symbol_sprint): Check name before trying to
print it.
(_stp_symbol_print): Change to macro that calls _stp_symbol_sprint().
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