mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 20:55:29 +07:00
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
|
|
#define __PERF_RUN_COMMAND_H
|
|
|
|
enum {
|
|
ERR_RUN_COMMAND_FORK = 10000,
|
|
ERR_RUN_COMMAND_EXEC,
|
|
ERR_RUN_COMMAND_PIPE,
|
|
ERR_RUN_COMMAND_WAITPID,
|
|
ERR_RUN_COMMAND_WAITPID_WRONG_PID,
|
|
ERR_RUN_COMMAND_WAITPID_SIGNAL,
|
|
ERR_RUN_COMMAND_WAITPID_NOEXIT,
|
|
};
|
|
#define IS_RUN_COMMAND_ERR(x) (-(x) >= ERR_RUN_COMMAND_FORK)
|
|
|
|
struct child_process {
|
|
const char **argv;
|
|
pid_t pid;
|
|
/*
|
|
* Using .in, .out, .err:
|
|
* - Specify 0 for no redirections (child inherits stdin, stdout,
|
|
* stderr from parent).
|
|
* - Specify -1 to have a pipe allocated as follows:
|
|
* .in: returns the writable pipe end; parent writes to it,
|
|
* the readable pipe end becomes child's stdin
|
|
* .out, .err: returns the readable pipe end; parent reads from
|
|
* it, the writable pipe end becomes child's stdout/stderr
|
|
* The caller of start_command() must close the returned FDs
|
|
* after it has completed reading from/writing to it!
|
|
* - Specify > 0 to set a channel to a particular FD as follows:
|
|
* .in: a readable FD, becomes child's stdin
|
|
* .out: a writable FD, becomes child's stdout/stderr
|
|
* .err > 0 not supported
|
|
* The specified FD is closed by start_command(), even in case
|
|
* of errors!
|
|
*/
|
|
int in;
|
|
int out;
|
|
int err;
|
|
const char *dir;
|
|
const char *const *env;
|
|
unsigned no_stdin:1;
|
|
unsigned no_stdout:1;
|
|
unsigned no_stderr:1;
|
|
unsigned perf_cmd:1; /* if this is to be perf sub-command */
|
|
unsigned stdout_to_stderr:1;
|
|
void (*preexec_cb)(void);
|
|
};
|
|
|
|
int start_command(struct child_process *);
|
|
int finish_command(struct child_process *);
|
|
int run_command(struct child_process *);
|
|
|
|
#define RUN_COMMAND_NO_STDIN 1
|
|
#define RUN_PERF_CMD 2 /*If this is to be perf sub-command */
|
|
#define RUN_COMMAND_STDOUT_TO_STDERR 4
|
|
int run_command_v_opt(const char **argv, int opt);
|
|
|
|
#endif /* __PERF_RUN_COMMAND_H */
|