Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761109AbZJMTWx (ORCPT ); Tue, 13 Oct 2009 15:22:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934121AbZJMTWv (ORCPT ); Tue, 13 Oct 2009 15:22:51 -0400 Received: from g4t0014.houston.hp.com ([15.201.24.17]:30823 "EHLO g4t0014.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754089AbZJMTWs (ORCPT ); Tue, 13 Oct 2009 15:22:48 -0400 Subject: [PATCH v2 3/9] vsprintf: add %pR decoding and %pr for raw struct resource To: Jesse Barnes From: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Yinghai Lu , Joe Perches , Len Brown Date: Tue, 13 Oct 2009 13:22:10 -0600 Message-ID: <20091013192210.22336.28703.stgit@bob.kio> In-Reply-To: <20091013192040.22336.84876.stgit@bob.kio> References: <20091013192040.22336.84876.stgit@bob.kio> User-Agent: StGit/0.14.3.386.gb02d MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4405 Lines: 117 This adds support for printing struct resource type and flag information. For example, "%pR" looks like "[mem 0xf5df0000-0xf5df3fff 64bit pref]", and "%pr" looks like "[mem 0xff5e2000-0xff5e2007 flags 0x201]". Signed-off-by: Bjorn Helgaas --- lib/vsprintf.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++------ 1 files changed, 47 insertions(+), 6 deletions(-) diff --git a/lib/vsprintf.c b/lib/vsprintf.c index fcbe69d..6438cd5 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -595,7 +595,7 @@ static char *symbol_string(char *buf, char *end, void *ptr, } static char *resource_string(char *buf, char *end, struct resource *res, - struct printf_spec spec) + struct printf_spec spec, const char *fmt) { #ifndef IO_RSRC_PRINTK_SIZE #define IO_RSRC_PRINTK_SIZE 6 @@ -614,12 +614,29 @@ static char *resource_string(char *buf, char *end, struct resource *res, .precision = -1, .flags = 0, }; + struct printf_spec str_spec = { + .field_width = -1, + .precision = 10, + .flags = LEFT, + }; + struct printf_spec flag_spec = { + .base = 16, + .precision = -1, + .flags = SPECIAL | SMALL, + }; + /* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8) * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */ -#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4) - char sym[2*RSRC_BUF_SIZE + sizeof("[-]")]; +#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4) +#define FLAG_BUF_SIZE (2 * sizeof(res->flags)) +#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref disabled]") +#define RAW_BUF_SIZE sizeof("[mem - flags 0x]") + char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE, + 2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)]; + char *p = sym, *pend = sym + sizeof(sym); int size = -1, addr = 0; + int decode = (fmt[0] == 'R') ? 1 : 0; if (res->flags & IORESOURCE_IO) { size = IO_RSRC_PRINTK_SIZE; @@ -630,12 +647,35 @@ static char *resource_string(char *buf, char *end, struct resource *res, } *p++ = '['; + if (res->flags & IORESOURCE_IO) + p = string(p, pend, "io ", str_spec); + else if (res->flags & IORESOURCE_MEM) + p = string(p, pend, "mem ", str_spec); + else if (res->flags & IORESOURCE_IRQ) + p = string(p, pend, "irq ", str_spec); + else if (res->flags & IORESOURCE_DMA) + p = string(p, pend, "dma ", str_spec); + else { + p = string(p, pend, "??? ", str_spec); + decode = 0; + } hex_spec.field_width = size; p = number(p, pend, res->start, addr ? hex_spec : dec_spec); if (res->start != res->end) { *p++ = '-'; p = number(p, pend, res->end, addr ? hex_spec : dec_spec); } + if (decode) { + if (res->flags & IORESOURCE_MEM_64) + p = string(p, pend, " 64bit", str_spec); + if (res->flags & IORESOURCE_PREFETCH) + p = string(p, pend, " pref", str_spec); + if (res->flags & IORESOURCE_DISABLED) + p = string(p, pend, " disabled", str_spec); + } else { + p = string(p, pend, " flags ", str_spec); + p = number(p, pend, res->flags, flag_spec); + } *p++ = ']'; *p = '\0'; @@ -813,8 +853,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr, * - 'f' For simple symbolic function names without offset * - 'S' For symbolic direct pointers with offset * - 's' For symbolic direct pointers without offset - * - 'R' For a struct resource pointer, it prints the range of - * addresses (not the name nor the flags) + * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] + * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201] * - 'M' For a 6-byte MAC address, it prints the address in the * usual colon-separated hex notation * - 'm' For a 6-byte MAC address, it prints the hex address without colons @@ -845,7 +885,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, case 'S': return symbol_string(buf, end, ptr, spec, *fmt); case 'R': - return resource_string(buf, end, ptr, spec); + case 'r': + return resource_string(buf, end, ptr, spec, fmt); case 'M': /* Colon separated: 00:01:02:03:04:05 */ case 'm': /* Contiguous: 000102030405 */ return mac_address_string(buf, end, ptr, spec, fmt); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/