Re: [dpdk-dev] [PATCH v3 03/15] bus/pci: add fallback for out[lwb]_p for non GNU libc
From: Natanael Copa <hidden>
Date: 2019-07-04 15:30:28
On Thu, 04 Jul 2019 15:20:55 +0200 Thomas Monjalon [off-list ref] wrote:
04/07/2019 14:16, Natanael Copa:quoted
On Sat, 30 Mar 2019 23:22:27 +0100 Thomas Monjalon [off-list ref] wrote:quoted
13/03/2019 18:06, Natanael Copa:quoted
Add a fallback for non-GNU libc systems like musl libc for the non-standard functions outl_p, outw_p and outb_p. This ifixes the following buildtime errors when building with musl libc: pci_uio.c:(.text+0xaa1): undefined reference to `outw_p' pci_uio.c:(.text+0xac5): undefined reference to `outl_p' pci_uio.c:(.text+0xadf): undefined reference to `outb_p' fixes https://bugs.dpdk.org/show_bug.cgi?id=35Please use this syntax: Bugzilla ID: 35Ok.quoted
[...]quoted
#if defined(RTE_ARCH_X86) #include <sys/io.h> +#if defined(__GLIBC__) +#define pci_uio_outl_p outl_p +#define pci_uio_outw_p outw_p +#define pci_uio_outb_p outb_p +#else +static inline void +pci_uio_outl_p(unsigned int value, unsigned short int port) +{ + __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80" : : "a" (value), + "Nd" (port)); +} + +static inline void +pci_uio_outw_p(unsigned short int value, unsigned short int port) +{ + __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80" : : "a" (value), + "Nd" (port)); +} + +static inline void +pci_uio_outb_p(unsigned char value, unsigned short int port) +{ + __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80" : : "a" (value), + "Nd" (port)); +} +#endif #endif[...]quoted
#if defined(RTE_ARCH_X86) - outl_p(*(const uint32_t *)s, reg); + pci_uio_outl_p(*(const uint32_t *)s, reg); #else *(volatile uint32_t *)reg = *(const uint32_t *)s; #endifCould we manage non-x86 case in the macros pci_uio_out?I did that in separate commit. Do you want do both in same commit?Maybe change the order of commits?
That would mean that first commit would use a define or inline that is not yet introduced :)
Anyway I think you need to rebase and resend this series :)
I'm on it. Thanks for your feedback. -nc