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target/ppc: Style fixes for gdbstub.c

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Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
David Gibson 2019-03-21 21:31:45 +11:00
parent 47733729b0
commit 02381ec16e
1 changed files with 19 additions and 15 deletions
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20
target/ppc/gdbstub.c
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@ -84,11 +84,14 @@ static int ppc_gdb_register_len(int n)
} }
} }
/* We need to present the registers to gdb in the "current" memory ordering. /*
For user-only mode we get this for free; TARGET_WORDS_BIGENDIAN is set to * We need to present the registers to gdb in the "current" memory
the proper ordering for the binary, and cannot be changed. * ordering. For user-only mode we get this for free;
For system mode, TARGET_WORDS_BIGENDIAN is always set, and we must check * TARGET_WORDS_BIGENDIAN is set to the proper ordering for the
the current mode of the chip to see if we're running in little-endian. */ * binary, and cannot be changed. For system mode,
* TARGET_WORDS_BIGENDIAN is always set, and we must check the current
* mode of the chip to see if we're running in little-endian.
*/
void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len) void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len)
{ {
#ifndef CONFIG_USER_ONLY #ifndef CONFIG_USER_ONLY
@ -104,11 +107,12 @@ void ppc_maybe_bswap_register(CPUPPCState *env, uint8_t *mem_buf, int len)
#endif #endif
} }
/* Old gdb always expects FP registers. Newer (xml-aware) gdb only /*
* Old gdb always expects FP registers. Newer (xml-aware) gdb only
* expects whatever the target description contains. Due to a * expects whatever the target description contains. Due to a
* historical mishap the FP registers appear in between core integer * historical mishap the FP registers appear in between core integer
* regs and PC, MSR, CR, and so forth. We hack round this by giving the * regs and PC, MSR, CR, and so forth. We hack round this by giving
* FP regs zero size when talking to a newer gdb. * the FP regs zero size when talking to a newer gdb.
*/ */
int ppc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) int ppc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)