mirror of
https://github.com/edk2-porting/linux-next.git
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a41794cdd7
Without the bloated cplus_demangle from binutils, i.e building with:
$ make NO_DEMANGLE=1 O=~acme/git/build/perf -j3 -C tools/perf/ install
Before:
text data bss dec hex filename
471851 29280 4025056 4526187 45106b /home/acme/bin/perf
After:
[acme@doppio linux-2.6-tip]$ size ~/bin/perf
text data bss dec hex filename
446886 29232 4008576 4484694 446e56 /home/acme/bin/perf
So its a 5.3% size reduction in code, but the interesting part is in the git
diff --stat output:
19 files changed, 20 insertions(+), 1909 deletions(-)
If we ever need some of the things we got from git but weren't using, we just
have to go to the git repo and get fresh, uptodate source code bits.
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
#ifndef __PERF_RUN_COMMAND_H
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#define __PERF_RUN_COMMAND_H
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enum {
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ERR_RUN_COMMAND_FORK = 10000,
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ERR_RUN_COMMAND_EXEC,
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ERR_RUN_COMMAND_PIPE,
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ERR_RUN_COMMAND_WAITPID,
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ERR_RUN_COMMAND_WAITPID_WRONG_PID,
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ERR_RUN_COMMAND_WAITPID_SIGNAL,
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ERR_RUN_COMMAND_WAITPID_NOEXIT,
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};
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#define IS_RUN_COMMAND_ERR(x) (-(x) >= ERR_RUN_COMMAND_FORK)
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struct child_process {
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const char **argv;
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pid_t pid;
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/*
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* Using .in, .out, .err:
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* - Specify 0 for no redirections (child inherits stdin, stdout,
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* stderr from parent).
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* - Specify -1 to have a pipe allocated as follows:
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* .in: returns the writable pipe end; parent writes to it,
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* the readable pipe end becomes child's stdin
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* .out, .err: returns the readable pipe end; parent reads from
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* it, the writable pipe end becomes child's stdout/stderr
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* The caller of start_command() must close the returned FDs
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* after it has completed reading from/writing to it!
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* - Specify > 0 to set a channel to a particular FD as follows:
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* .in: a readable FD, becomes child's stdin
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* .out: a writable FD, becomes child's stdout/stderr
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* .err > 0 not supported
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* The specified FD is closed by start_command(), even in case
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* of errors!
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*/
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int in;
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int out;
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int err;
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const char *dir;
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const char *const *env;
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unsigned no_stdin:1;
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unsigned no_stdout:1;
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unsigned no_stderr:1;
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unsigned perf_cmd:1; /* if this is to be perf sub-command */
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unsigned stdout_to_stderr:1;
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void (*preexec_cb)(void);
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};
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int start_command(struct child_process *);
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int finish_command(struct child_process *);
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int run_command(struct child_process *);
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#define RUN_COMMAND_NO_STDIN 1
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#define RUN_PERF_CMD 2 /*If this is to be perf sub-command */
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#define RUN_COMMAND_STDOUT_TO_STDERR 4
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int run_command_v_opt(const char **argv, int opt);
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#endif /* __PERF_RUN_COMMAND_H */
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