From fd95541e23e2c9acb1e38cd41fc0c7cc37fceb53 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 6 Oct 2009 15:33:39 -0600 Subject: vsprintf: add %pRt, %pRf to print struct resource details This adds support for printing struct resource type and flag information. For example, "%pRt" looks like "[mem 0x80080000000-0x8008001ffff 64bit pref]", and "%pRf" looks like "[mem 0xff5e2000-0xff5e2007 pref flags 0x1]". Signed-off-by: Bjorn Helgaas Signed-off-by: Jesse Barnes --- lib/vsprintf.c | 51 ++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 44 insertions(+), 7 deletions(-) (limited to 'lib/vsprintf.c') diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 1b60aedab44d..a6e195163eb3 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 @@ -614,9 +614,21 @@ static char *resource_string(char *buf, char *end, struct resource *res, .precision = -1, .flags = 0, }; - /* room for two actual numbers (decimal or hex), the two "0x", -, [, ] - * and the final zero */ - char sym[2*3*sizeof(resource_size_t) + 8]; + struct printf_spec str_spec = { + .field_width = -1, + .precision = 10, + .flags = LEFT, + }; + struct printf_spec flag_spec = { + .base = 16, + .precision = -1, + .flags = SPECIAL | SMALL, + }; + /* + * room for three actual numbers (decimal or hex), plus + * "[mem 0x-0x 64bit pref disabled flags 0x]\0" + */ + char sym[3*3*sizeof(resource_size_t) + 41]; char *p = sym, *pend = sym + sizeof(sym); int size = -1, addr = 0; @@ -629,12 +641,35 @@ static char *resource_string(char *buf, char *end, struct resource *res, } *p++ = '['; + if (fmt[1] == 't' || fmt[1] == 'f') { + 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); + } 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 (fmt[1] == 't' || fmt[1] == 'f') { + 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); + if (fmt[1] == 'f') { + p = string(p, pend, " flags ", str_spec); + p = number(p, pend, res->flags & ~IORESOURCE_TYPE_BITS, + flag_spec); + } + } *p++ = ']'; *p = 0; @@ -812,8 +847,10 @@ 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 a struct resource pointer, print: + * R address range only ([0x0-0x1f]) + * Rt type and range ([mem 0x0-0x1f 64bit pref]) + * Rf type, range, and flags ([mem 0x0-0x1f 64bit pref flags 0x1]) * - '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 @@ -844,7 +881,7 @@ 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); + 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); -- cgit v1.2.3