// SPDX-License-Identifier: GPL-2.0 /* * bootstr.c: Boot string/argument acquisition from the PROM. * * Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #include <linux/string.h> #include <asm/oplib.h> #include <linux/init.h> #define BARG_LEN 256 static char barg_buf[BARG_LEN] = { 0 }; static char fetched __initdata = 0;
char * __init prom_getbootargs(void) { int iter; char *cp, *arg; /* This check saves us from a panic when bootfd patches args. */ if (fetched) { return barg_buf; } switch (prom_vers) { case PROM_V0: cp = barg_buf; /* Start from 1 and go over fd(0,0,0)kernel */ for (iter = 1; iter < 8; iter++) { arg = (*(romvec->pv_v0bootargs))->argv[iter]; if (arg == NULL) break; while (*arg != 0) { /* Leave place for space and null. */ if (cp >= barg_buf + BARG_LEN - 2) /* We might issue a warning here. */ break; *cp++ = *arg++; } *cp++ = ' '; if (cp >= barg_buf + BARG_LEN - 1) /* We might issue a warning here. */ break; } *cp = 0; break; case PROM_V2: case PROM_V3: /* * V3 PROM cannot supply as with more than 128 bytes * of an argument. But a smart bootstrap loader can. */ strlcpy(barg_buf, *romvec->pv_v2bootargs.bootargs, sizeof(barg_buf)); break; default: break; } fetched = 1; return barg_buf; }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 151 | 89.35% | 3 | 50.00% |
| Chen Gang S | 12 | 7.10% | 1 | 16.67% |
| Benjamin Collins | 5 | 2.96% | 1 | 16.67% |
| Sam Ravnborg | 1 | 0.59% | 1 | 16.67% |
| Total | 169 | 100.00% | 6 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 182 | 90.10% | 4 | 44.44% |
| Chen Gang S | 12 | 5.94% | 1 | 11.11% |
| Benjamin Collins | 5 | 2.48% | 1 | 11.11% |
| Adrian Bunk | 1 | 0.50% | 1 | 11.11% |
| Greg Kroah-Hartman | 1 | 0.50% | 1 | 11.11% |
| Sam Ravnborg | 1 | 0.50% | 1 | 11.11% |
| Total | 202 | 100.00% | 9 | 100.00% |