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i386: Fix const qualifier build errors with recent glibc

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A recent change in glibc 2.42.9000 [1] changes the return type of
strstr() and other string functions to be 'const char *' when the
input is a 'const char *'. This breaks the build in :

  ../hw/i386/x86-common.c:827:11: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
  827 |     vmode = strstr(kernel_cmdline, "vga=");
      |           ^

Fix this by changing the type of the variables that store the result
of these functions to 'const char *'.

[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=cd748a63ab1a7ae846175c532a3daab341c62690

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Link: https://lore.kernel.org/qemu-devel/20251215101937.281722-2-clg@redhat.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Cédric Le Goater
2025-12-15 11:19:34 +01:00
parent 9c23f2a7b0
commit 2f5c96d534
1 changed files with 1 additions and 1 deletions
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2
hw/i386/x86-common.c
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@@ -654,7 +654,7 @@ void x86_load_linux(X86MachineState *x86ms,
uint8_t header[8192], *setup, *kernel;
hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
FILE *f;
char *vmode;
const char *vmode;
MachineState *machine = MACHINE(x86ms);
struct setup_data *setup_data;
const char *kernel_filename = machine->kernel_filename;