tools/perf/util/color_config.c
Source file repositories/reference/linux-study-clean/tools/perf/util/color_config.c
File Facts
- System
- Linux kernel
- Corpus path
tools/perf/util/color_config.c- Extension
.c- Size
- 835 bytes
- Lines
- 38
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
linux/kernel.hsubcmd/pager.hstring.hconfig.hstdlib.hstdio.hcolor.hmath.hunistd.h
Detected Declarations
function perf_config_colorbool
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <subcmd/pager.h>
#include <string.h>
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include "color.h"
#include <math.h>
#include <unistd.h>
int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
{
if (value) {
if (!strcasecmp(value, "never"))
return 0;
if (!strcasecmp(value, "always"))
return 1;
if (!strcasecmp(value, "auto"))
goto auto_color;
}
/* Missing or explicit false to turn off colorization */
if (!perf_config_bool(var, value))
return 0;
/* any normal truth value defaults to 'auto' */
auto_color:
if (stdout_is_tty < 0)
stdout_is_tty = isatty(1);
if (stdout_is_tty || pager_in_use()) {
char *term = getenv("TERM");
if (term && strcmp(term, "dumb"))
return 1;
}
return 0;
}
Annotation
- Immediate include surface: `linux/kernel.h`, `subcmd/pager.h`, `string.h`, `config.h`, `stdlib.h`, `stdio.h`, `color.h`, `math.h`.
- Detected declarations: `function perf_config_colorbool`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.