Previously, SysVMatch was quite verbose and felt like hand-optimized
assembler code, which made it difficult to discover the underlying idea
of the code.
All this code was replaced with two simple calls to Substring_HasPrefix
and Substring_HasSuffix. Now that the operands of that modifier are no
longer passed as C strings, there is no need to collect all information
in a single scan through the word and the pattern.
It was not necessary to call Var_Subst unconditionally. Calling it only
when the string contains a '$' saves another memory allocation and two
string copies (because of the Buf_DoneDataCompact).
No functional change.
I had forgotten to remove the single quotes, to produce a really empty
word. Plus I had forgotten the modifier ':Q' for the result, which
meant that the single quotes did not show up in the output.
- arm64 doesn't build (missing __aarch64_swp1_acq in kernels)
- mips cpu targets all build (maybe not all ports)
- powerpc builds (maybe not all ports)
bugs that exist in the current code and leave the target machine in
a broken state, requiring ddb or hard reset.
setting ATF_USR_SBIN_CPUCTL_OFFLINE_ENABLE to any non-empty string
will enable these tests again.
- fix path to compiler-specific includes
- missing (void) for (older) C
- fix __is_signed/__is_signed_val change
- avoid compiler warning-as-errors
- add to existing COPTS.file values, instead of setting
- bump libgomp minor; functions were added
- add new 'compare' c++ header
- handle new analyzer subdirectory. set TARGET_MACHINE for lto-streamer-in.c.
remove params.list etc handling.
- coroutines.cc is another .cc not .c. adjust .PATH to suit.
- add new lto1 sources
- couple of files not in /arch/ subdirs missed in mknative update.
rs6000.c is still not merged.
The previous O(n^2) time complexity for parsing a long string with many
variable expressions was not meant to last for long. I had hoped to fix
it within a few minutes, but that will take more time.
For now, make LazyBuf simpler by using a traditional C string for the
expected part instead of a Substring. This avoids a strlen call per
Var_Parse.
No functional change, only performance.
